Model Or Learning Means (e.g., Neural Network) Patents (Class 701/59)
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Patent number: 11899414Abstract: Various aspects of the present disclosure are directed to methods for calibrating a technical system with respect to stochastic influences during real operation of the technical system. In one example embodiment of the present disclosure, the method includes the steps of: determining the values of a number of control variables, carrying out the calibration on the basis of a load cycle which results in a sequence of a number of operating points, executing the load cycle multiple times under the influence of at least one random influencing variable, with each realization of the load cycle resulting in a random sequence of the number i of operating points, defining a risk measure of the probability distribution, with which the probability distribution is mapped to a scalar variable, and optimizing the risk measure by varying the number of control variables in order to obtain optimal control variables for calibration.Type: GrantFiled: December 9, 2019Date of Patent: February 13, 2024Assignee: AVL LIST GMBHInventors: Nico Didcock, Alexander Wasserburger, Christoph Hametner
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Patent number: 11829131Abstract: A computer, including a processor and a memory, the memory including instructions to be executed by the processor to train a neural network included in a memory augmented neural network based on one or more images and corresponding ground truth in a training dataset by transforming the one or more images to generate a plurality of one-hundred or more variations of the one or more images including variations in the ground truth and process the variations of the one or more images and store feature points corresponding to each variation of the one or more images in memory associated with the memory augmented neural network. The instructions can include further instructions to process an image acquired by a vehicle sensor with the memory augmented neural network, including comparing a feature variance set for the image acquired by the vehicle sensor to the stored processing parameters for each variation of the one or more images, to obtain an output result.Type: GrantFiled: October 29, 2020Date of Patent: November 28, 2023Assignee: Ford Global Technologies, LLCInventors: Iman Soltani Bozchalooi, Francois Charette, Dimitar Petrov Filev, Ryan Burke, Devesh Upadhyay
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Patent number: 11574462Abstract: This application is directed to augmenting training images used for generating vehicle driving models. A computer system obtains a first image of a road, identifies within the first image a drivable area of the road, obtains an image of a traffic safety object, and determines a detour path on the drivable area. The computer system determines positions of a plurality of traffic safety objects to be placed adjacent to the detour path, and generates a second image from the first image by adaptively overlaying a respective copy of the image of the traffic safety object at each of the positions of the plurality of traffic safety objects on the drivable area within the first image. The second image is added to a corpus of training images to be used by a machine learning system to generate a model for facilitating driving a vehicle (e.g., at least partial autonomously).Type: GrantFiled: June 30, 2022Date of Patent: February 7, 2023Assignee: Plus AI, Inc.Inventors: Abhishek Bhatia, Inderjot Singh Saggu, Ankur Agarwal
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Patent number: 11524696Abstract: A method for determining the values of parameters for a controller of a vehicle, wherein respective error measures are calculated for different sets of values and a set of values is selected based on the error measures.Type: GrantFiled: September 21, 2018Date of Patent: December 13, 2022Assignee: CONTINENTAL TEVES AG & CO. OHGInventor: Ulrich Stählin
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Patent number: 11505207Abstract: A system for context-aware decision making of an autonomous agent includes a computing system having a context selector and a map. A method for context-aware decision making of an autonomous agent includes receiving a set of inputs, determining a context associated with an autonomous agent based on the set of inputs, and optionally any or all of: labeling a map; selecting a learning module (context-specific learning module) based on the context; defining an action space based on the learning module; selecting an action from the action space; planning a trajectory based on the action S260; and/or any other suitable processes.Type: GrantFiled: February 25, 2022Date of Patent: November 22, 2022Assignee: Gatik AI Inc.Inventors: Gautam Narang, Apeksha Kumavat, Arjun Narang, Kinh Tieu, Michael Smart, Marko Ilievski
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Patent number: 11499627Abstract: Techniques related to vehicle operation. A processor determines that at least one condition is met related to a vehicle. In response to the at least one condition being met, the processor generates a natural language output having a query. The processor determines that an affirmative response to the query is received and causes a downshift of a transmission of the vehicle in response to the affirmative response.Type: GrantFiled: June 11, 2018Date of Patent: November 15, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: James Humble, James R. Kozloski, Clifford A. Pickover, Tim Rumbell
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Patent number: 11491998Abstract: A method for determining the values of parameters for a controller of a vehicle, wherein respective error measures are calculated for different sets of values and a set of values is selected based on the error measures.Type: GrantFiled: September 21, 2018Date of Patent: November 8, 2022Assignee: CONTINENTAL TEVES AG & CO. OHGInventor: Ulrich Stählin
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Patent number: 11404060Abstract: According to one embodiment, an electronic device determines whether one or more devices should be controlled based on a second utterance input subsequent to a first utterance input from outside in accordance with the first utterance. The electronic device includes a management unit and a controller. The management unit prepares and manages a determination audio data item for determining whether the first utterance is a desired utterance by utterances input from outside at a plurality of times, and determines whether the first utterance is the desired utterance using the prepared and managed determination audio data item. The controller controls the one or more devices based on the second utterance.Type: GrantFiled: December 27, 2019Date of Patent: August 2, 2022Assignee: Hisense Visual Technology Co., Ltd.Inventors: Hidehito Izawa, Reiko Kawachi, Kunio Honsawa, Hiroyuki Nomoto
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Patent number: 11260867Abstract: A computer includes a processor and a memory storing instructions executable by the processor to detect a potential hydroplaning area of a roadway based on topographic data and based on vehicle sensor data, and to actuate a component of a vehicle based on a location of the potential hydroplaning area.Type: GrantFiled: October 8, 2019Date of Patent: March 1, 2022Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Somak Datta Gupta, Mahmoud Yousef Ghannam, Brian Bennie
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Patent number: 11203361Abstract: A method for performing on-device learning of embedded machine learning network of autonomous vehicle by using multi-stage learning with adaptive hyper-parameter sets is provided. The processes include: (a) dividing the current learning into a 1-st stage learning to an n-th stage learning, assigning 1-st stage training data to n-th stage training data, generating a 1_1-st hyper-parameter set candidate to a 1_h-th hyper-parameter set candidate, training the embedded machine learning network in the 1-st stage learning, and determining a 1-st adaptive hyper-parameter set; (b) generating a k_1-st hyper-parameter set candidate to a k_h-th hyper-parameter set candidate, training the (k?1)-th stage-completed machine learning network in the k-th stage learning, and determining a k-th adaptive hyper-parameter set; and (c) generating an n-th adaptive hyper-parameter set, and executing the n-th stage learning, to thereby complete the current learning.Type: GrantFiled: April 13, 2021Date of Patent: December 21, 2021Assignee: Stradvision, Inc.Inventors: Hongmo Je, Yongjoong Kim, Dongkyu Yu, Sung An Gweon
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Patent number: 11199419Abstract: A method for reducing exhaust gas emissions of a drive system of a vehicle including an internal combustion engine, including generating first driving profiles using a computer-implemented machine learning system, the statistical distribution of the first driving profiles being a function of a statistical distribution of second driving profiles measured during real driving operation, calculating respective exhaust gas emissions for the first driving profiles using a computer-implemented modeling of the vehicle or the drive system, adapting the drive system as a function of at least one of the calculated exhaust gas emissions, the adaptation taking place as a function of a level or of a profile of the calculated exhaust gas emissions and of a statistical frequency of the corresponding first driving profile, the statistical frequency of the corresponding first driving profile being ascertained with the aid of the statistical distribution of the first driving profiles.Type: GrantFiled: April 10, 2020Date of Patent: December 14, 2021Assignee: Robert Bosch GmbHInventors: Heiner Markert, Stefan Angermaier
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Patent number: 11138503Abstract: Continuously learning and optimizing artificial intelligence (AI) adaptive neural network (ANN) computer modeling methods and systems, designated human affect computer modeling (HACM) or affective neuron (AN), and, more particularly, to AI methods, systems and devices that can recognize, interpret, process and simulate human reactions and affects such as emotional responses to internal and external sensory stimuli, that provides real-time reinforcement learning modeling that reproduces human affects and/or reactions, wherein the human affect modeling (HACM) can be used singularly or collectively to modeling and predict complex human reactions and affects.Type: GrantFiled: March 22, 2018Date of Patent: October 5, 2021Assignee: LARSXInventors: Laurence F. Wood, Lisa S. Wood
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Patent number: 11041579Abstract: Systems and method for controlling wellsite equipment, including pumps and a manifold having a low-pressure (LP) manifold, having LP ports with LP valves, and a high-pressure (HP) manifold, having HP ports with HP valves and bleed ports with bleed valves. The pumps are fluidly coupled with the LP manifold via LP conduits and with the HP manifold via HP conduits. Communication is established between a controller and the LP valves, the HP valves, the bleed valves, the pumps, and sensors for monitoring pressure within the HP conduits. The controller is operable to, with respect to each pump, cause the LP valve to transition to a closed position, cause the HP and/or bleed valve to transition to an open position, and determine that the HP conduit is not pressurized based on the information generated by the sensors.Type: GrantFiled: March 8, 2016Date of Patent: June 22, 2021Assignee: Schlumberger Technology CorporationInventors: Miguel Angel Lopez, Marcos Suguru Kajita, Nan Mu, Chuong Nguyen, Corey Ray, Manuel Alfonso Bobadilla Larios
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Patent number: 10941861Abstract: A shift range control apparatus is applied to a shift range switching mechanism that includes a rotation member including multiple recesses, and an engagement member that positions the rotation member by engaging to the recesses. The shift range control apparatus controls a motor of a shift actuator connected to the rotation member to switch a shift range. The shift range control apparatus includes a rotation speed detection section that detects an output shaft rotation speed corresponding to a rotation speed of an output shaft of the shift actuator, and a movement determination section that determines that an engagement portion of the engagement member has relatively moved to a bottom of one of the recesses of the rotation member when the output shaft rotation speed is equal to or lower than a predetermined value during switching of the shift range.Type: GrantFiled: September 19, 2019Date of Patent: March 9, 2021Assignee: DENSO CORPORATIONInventor: Koji Sakaguchi
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Patent number: 10663061Abstract: A control apparatus for a vehicle drive-force transmitting apparatus including a continuously-variable transmission mechanism whose gear ratio is calculated based on a detected value of an input rotational speed of the transmission mechanism and a processed output-rotational-speed value that is a detected value of an output rotational speed of the transmission mechanism subjected to a filter processing. Updating the gear ratio of the transmission mechanism is inhibited (i) when the processed output-rotational-speed value is in a low rotational speed range with an absolute value of a rate of change of the processed output-rotational-speed value being not smaller than a given value, and also (ii) when the processed output-rotational-speed value is in the low rotational speed range with the absolute value of the rate of change of the processed output-rotational-speed value being smaller than the given value, if a certain operation that increases the absolute value is being executed.Type: GrantFiled: March 4, 2019Date of Patent: May 26, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunio Hattori, Akihide Ito, Takuro Shimazu
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Patent number: 10564644Abstract: A speed planning method and apparatus and a calculating apparatus for automatic driving of a vehicle. The method comprises: using a training sample set to perform machine learning to obtain a machine learning model (S110); partitioning an input space, and obtaining a decision result corresponding to a determined partition based on the obtained machine learning model to form a partition decision table of each partition corresponding to the corresponding decision result (S120); and obtaining each dimensional feature vector of a vehicle while driving in real time as an input feature, determining an input partition to which the input feature belongs, and querying the partition decision table based on the determined partition to obtain the corresponding decision result (S130).Type: GrantFiled: June 8, 2016Date of Patent: February 18, 2020Assignee: UISEE TECHNOLOGIES (BEIJING) LTDInventors: Xiaocheng Zhou, Yan Jiang, Jinzhan Peng, Xin Zhou, Dan Zhang, Sai Luo
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Patent number: 10551835Abstract: The systems and methods described herein disclose regulation of vehicle access based on operator proficiency. The systems and methods for regulating vehicle access by an operator include determining, using driving capacity information, a driving capacity metric for an operator in a vehicle. A vehicle system of the vehicle can then be evaluated for a vehicle system proficiency. The driving capacity metric and the vehicle system proficiency can then be compared. Then, using the comparison, a proficiency level of the operator can be determined for the at least one vehicle system. Finally, access to the at least one vehicle system can be provided to the operator based on the proficiency level.Type: GrantFiled: March 12, 2018Date of Patent: February 4, 2020Assignee: Toyota Research InstituteInventors: Julian M. Mason, Nikolaos Michalakis
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Patent number: 10393880Abstract: A method is disclosed for managing rules or policies in a vehicle having a controllable unit. The method may include determining, at the start of a driving, an active route of the vehicle, selecting a set of control values from multiple stored sets of control values, where one control value of the set of control values corresponds to one predetermined interval of the determined active route, and controlling the at least one controllable unit based on the selected set of control values. The method may also include recording, during the current driving of the vehicle, a set of control result values, where one control result value corresponds to a predetermined interval of the determined active route which the vehicle has driven and, at the end of the driving based on the set of control result values, determining and storing an updated set of control values for the actually driven route.Type: GrantFiled: September 10, 2015Date of Patent: August 27, 2019Assignee: Volvo Car CorporationInventors: Rickard Arvidsson, Niklas Akerblom
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Patent number: 10253725Abstract: A control system for a gas turbine engine, a method for controlling a gas turbine engine, and a gas turbine engine are disclosed. The control system may include a nozzle scheduler for determining an exhaust nozzle position goal based on a nozzle schedule of exhaust nozzle positions related to flight conditions. The control system may further include a control module for determining a control command for the gas turbine engine. The control command may include, at least, a fuel flow command and an exhaust nozzle position command and the control command may be based on, at least, the exhaust nozzle position goal and an estimated thrust value. The control system may further include an actuator for controlling the gas turbine engine based on the control command.Type: GrantFiled: October 23, 2015Date of Patent: April 9, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Chaohong Cai, Timothy J. Crowley, Mark E. Lacour, David L. Ma
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Patent number: 9899018Abstract: An apparatus and system for addressing road noise are provided. The apparatus is configured to determine at least one from among a location of a vehicle and a noise feature of a road on which the vehicle is traveling, retrieve road noise cancellation information based on the determined at least one from among the location of the vehicle and the noise feature of the road on which the vehicle is traveling, and output a signal to cancel road noise based on the road noise cancellation information. The apparatus may be installed in vehicle to address road noise heard by occupants of the vehicle.Type: GrantFiled: June 24, 2016Date of Patent: February 20, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Frank C Valeri, Christophe A Stirlen, Scott M. Reilly
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Patent number: 9765703Abstract: A torque requesting module generates a first torque request for a spark ignition engine based on driver input. A torque conversion module converts the first torque request into a second torque request. A setpoint control module generates air and exhaust setpoints for the spark ignition engine based on the second torque request. A model predictive control (MPC) module identifies sets of possible target values based on the air and exhaust setpoints, generates predicted parameters based on a model of the spark ignition engine and the sets of possible target values, respectively, selects one of the sets of possible target values based on the predicted parameters, and sets target values based on the possible target values of the selected one of the sets. A throttle actuator module controls opening of a throttle valve based on a first one of the target values.Type: GrantFiled: June 6, 2013Date of Patent: September 19, 2017Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Christopher E. Whitney, Kevin C. Wong, Paul R. Nahra, Julian R. Verdejo
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Patent number: 9279461Abstract: A coupling device system for use in a motor vehicle is provided including a coupling device and a memory chip. The coupling device has an input member, an output member, and at least one modulating clutch assembly selectively coupling the input member to the output member. The modulating clutch assembly includes an electrical clutch operator and clutch plates. The clutch plates include at least one first clutch plate coupled to the input member and at least one second clutch plate coupled to the output member. The second clutch plate is disposed adjacent the first clutch plate. The memory chip is integrated with the coupling device and is configured to store data related to a measured characteristic of the coupling device. The memory chip is also configured to communicate with a vehicle controller. A method of providing a calibration curve of the coupling device to the vehicle controller is also disclosed.Type: GrantFiled: November 5, 2010Date of Patent: March 8, 2016Assignee: BorgWarner Inc.Inventors: Brian E. Leising, Phillip Wood, Ryan M. True
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Patent number: 9145968Abstract: A device for controlling shift in a vehicle may include a data detector configured to detect data for a shift control and a controller configured to determine a short-term driving tendency of a driver using the data, determine a long-term driving tendency of the driver using the short-term driving tendency of the driver, and control shift in the vehicle in consideration of a running mode of the vehicle and the long-term driving tendency which are determined from the data.Type: GrantFiled: December 26, 2013Date of Patent: September 29, 2015Assignee: HYUNDAI MOTOR COMPANYInventors: Byeong Wook Jeon, Joseph D. Chang, Dong Hoon Jeong
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Patent number: 9070235Abstract: An apparatus and a method determines a short-term driving tendency. The apparatus may include a driving information collecting unit configured to collect driving information for determining the short-term driving tendency, a short-term driving tendency calculating module configured to receive input variables for determining the short-term driving tendency and calculate a short-term driving tendency index using a fuzzy control theory, and a calculation prohibition control module configured to check an accelerator position sensor (APS) signal of the vehicle and prohibit calculation of the short-term driving tendency index when an APS opening degree is equal to or less than a predetermined reference value.Type: GrantFiled: December 13, 2013Date of Patent: June 30, 2015Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Byeong Wook Jeon, Dong Hoon Jeong
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Patent number: 9026328Abstract: A transmission controller increases an indicated hydraulic pressure to a starting frictional engagement element to a normal hydraulic pressure, causes a hydraulic piston to stroke and executes a learning control of the indicated hydraulic pressure so that a time until the starting frictional engagement element starts generating a transmission capacity after the range is switched from the neutral range to the drive range becomes a target time when a range is switched from a neutral range to a drive range. The transmission controller further detects a driver's starting intention and increases the indicated hydraulic pressure to the starting frictional engagement element to a starting time hydraulic pressure higher than the normal hydraulic pressure and prohibits the learning control if the starting intention is detected before the starting frictional engagement element starts generating the transmission capacity.Type: GrantFiled: October 4, 2012Date of Patent: May 5, 2015Assignee: Jatco LtdInventor: Hiromichi Akebono
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Publication number: 20150120156Abstract: A method of controlling a dual-clutch transmission having two partial transmissions that can be connected to a drive engine such that a target gear, in a respective load-free partial transmission to be engaged following the currently active gear, can be preselected. To reduce the energy consumption caused by transmission losses, the method includes the steps of: determining a possible target gear, determining overall transmission losses for both when a target gear is preselected, and when a target gear is not preselected, determining whether the overall transmission loss is greater when a target gear is preselected or when no gear is preselected, deciding whether a target gear should or should not be preselected using the overall transmission loss determined as a criterion, and implementing measures that correspond to the decision reached.Type: ApplicationFiled: May 2, 2013Publication date: April 30, 2015Inventors: Thorsten Leim, Carolin Heller
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Patent number: 9020716Abstract: A control device for a vehicle drive device that includes a drive source that outputs a drive force for running and an automatic transmission that has multiple speeds, the control device includes: a blipping control device that performs blipping control in which an output torque of the drive source is changed irrespective of an accelerator operation when a manual downshift of the automatic transmission is performed, and that changes a timing to perform next blipping control in a learning manner on the basis of an undershoot amount of a turbine speed at start of shifting of the automatic transmission.Type: GrantFiled: February 4, 2010Date of Patent: April 28, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keisuke Ota, Hitoshi Matsunaga
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Publication number: 20150105988Abstract: The automatic transmission includes a first friction engagement element which is engaged when a first gear position is realized and disengaged when a second gear position is realized, a second friction engagement element which is engaged when the second gear position is realized and disengaged when the first gear position is realized, and a controller. The controller causes the second friction engagement element to slip by decreasing an instructional pressure for the second friction engagement element while running in the second gear position, and learns an engagement start pressure of the first friction engagement element based on a change in a differential rotation of the second friction engagement element, or in a parameter that changes in accordance with the differential rotation, at a time when an instructional pressure for the first friction engagement element is increased during the slip.Type: ApplicationFiled: February 21, 2013Publication date: April 16, 2015Applicants: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Takuichiro Inoue, Hiroyasu Tanaka, Mamiko Inoue, Seiichiro Takahashi
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Patent number: 8996263Abstract: An electronic controller for a variable ratio transmission and an electronically controllable variable ratio transmission including a variator or other CVT are described herein. The electronic controller can be configured to receive input signals indicative of parameters associated with an engine coupled to the transmission. The electronic controller can also receive one or more control inputs. The electronic controller can determine an active range and an active variator mode based on the input signals and control inputs. The electronic controller can control a final drive ratio of the variable ratio transmission by controlling one or more electronic solenoids that control the ratios of one or more portions of the variable ratio transmission.Type: GrantFiled: November 14, 2008Date of Patent: March 31, 2015Assignee: Fallbrook Intellectual Property Company LLCInventors: Stanley B. Quinn, Jr., Alan L. Miller, Scott R. Anderson
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Patent number: 8996265Abstract: A control device of a hybrid vehicle includes an engine and an electric motor, a clutch, and an automatic transmission. The motor is the only drive power source when the clutch is released. The control device is configured such that when a request for increasing drive torque while the motor is running is made, if start control of the engine and downshift control of the automatic transmission overlap, clutch engagement completion is a starting point to start a rotational change of an input rotation speed of the transmission toward a synchronous rotation speed after a shift, and a transmission torque capacity during the downshift control in the transmission until engagement completion of the clutch being set equal to or greater than an input torque of the transmission during the motor running and less than an input torque of the transmission at the time of engagement completion of the clutch.Type: GrantFiled: January 12, 2011Date of Patent: March 31, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Nobufusa Kobayashi, Hideaki Otsubo
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Patent number: 8983743Abstract: A variable control apparatus and method determines a short-term driving tendency. The apparatus may include a driving information collecting unit configured to collect driving information for determining a driving tendency, a first short-term driving tendency calculating module configured to calculate a first short-term driving tendency index using a fuzzy control theory based on an inputted opening degree of an accelerator pedal position sensor (APS), a second short-term driving tendency calculating module configured to calculate a second short-term driving tendency index using the fuzzy control theory based on an inputted forward vehicle relative speed, and a control module configured to calculate a final short-term driving tendency index by differentially applying weight values of the first short-term driving tendency index and the second short-term driving tendency index for each vehicle speed.Type: GrantFiled: December 30, 2013Date of Patent: March 17, 2015Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Byeong Wook Jeon, Dong Hoon Jeong
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Patent number: 8965664Abstract: A controller for a plant that controls a controlled variable for the plant in accordance with estimated values, allowing to reduce any error in the estimated values that is caused by solid variation or aging of the plant. A controller for an exhaust emission control system has an estimated Inert-EGR value calculation section (711) to calculate the estimated value IEGRHAT for the Inert-EGR amount on the basis of an input vector U through a neural network, an estimated LAF sensor output value calculation section (712) to calculate the estimated value ?HAT for an exhaust air-fuel ratio correlating with the Inert-EGR amount on the basis of the input vector U through the neural network, an LAF sensor (34) to detect the exhaust air-fuel ratio, and a nonlinear adaptive corrector (713) to calculate the adaptive input UVNS such that the estimated error EHAT between the detected value ?ACT from the LAF sensor (34) and the estimated output value ?HAT of the LAF sensor (34) is minimized.Type: GrantFiled: March 27, 2009Date of Patent: February 24, 2015Assignee: Honda Motor Co., Ltd.Inventors: Yuji Yasui, Koichi Nakajima, Michael Fischer
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Patent number: 8965644Abstract: A system and a method of controlling shifting for a vehicle includes a data detector detecting data for a shift control, a road condition determiner determining a road condition based on the data, a short term driving tendency determiner determining a short term driving tendency of a driver based on the data, and a long term driving tendency determiner determining a long term driving tendency of the driver based on the short term driving tendency of the driver. An optimal driving mode determiner determines an optimal driving mode based on the road condition, the short term driving tendency of the driver, and the long term driving tendency of the driver, wherein the system controls shifting according to the optimal driving mode determined by the optimal driving mode determiner.Type: GrantFiled: November 26, 2013Date of Patent: February 24, 2015Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Byeong Wook Jeon, Heeyong Lee
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Patent number: 8938339Abstract: A method of actuating an assembly of a transmission, with which are associated a plurality of actuators with whose help the assembly can in principle be actuated, such that out of the actuators available in principle for actuation, a control unit selects at least one actuator for the actual actuation and activates the selected actuator with an output signal in such manner that a status parameter of the actuated assembly corresponds to or follows a control-side nominal value, such that out of the actuators available in principle for actuating the assembly, the control unit selects at least one actuator for the actual actuation of the assembly in such manner that, for all the actuators available in principle for actuating the assembly over the operating life of the transmission, the extent of their utilization is approximately uniform.Type: GrantFiled: July 20, 2011Date of Patent: January 20, 2015Assignee: ZF Friedrichshafen AGInventors: Peter Herter, Rupert Kramer
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Patent number: 8930099Abstract: In a control apparatus for an automatic transmission, it is configured to calculate a change amount (?NC estimation value) of an output rotational speed of the transmission (S10); calculate an average (I phase initial average G) of the change amount of the output rotational speed over a predetermined period of an initial inertia (I) phase of shifting; calculate an average (after-shift average G) of a vehicle acceleration after the completion of the shifting, assuming that the change amount of the output rotational speed indicates the vehicle acceleration G; calculate a difference (I phase initial G) between the average of the change amount of the output rotational speed and the average of the vehicle acceleration; incrementally and decrementally correct the desired value of the transmission torque of the frictional engaging element such that the calculated difference falls within a predetermined range; and control supply of hydraulic pressure to the frictional engaging element such that it becomes the correctType: GrantFiled: November 19, 2010Date of Patent: January 6, 2015Assignee: Honda Motor Co., Ltd.Inventors: Yasushi Inagawa, Shintaro Kameda, Atsuhiro Saeki, Takahiro Matsuda, Hidekazu Araki, Hiroyuki Okuda, Yuji Yasui
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Patent number: 8930079Abstract: A vehicle steering system includes an automatic steering control unit configured to control the vehicle steering system when in an automatic operational state and a driver intervention unit is configured to determine driver intervention during the automatic operational state. The driver intervention unit comprising a decision software module configured to determine driver intervention.Type: GrantFiled: October 22, 2009Date of Patent: January 6, 2015Assignee: GM Global Technology Operations LLCInventors: Yong H. Lee, Jihan Ryu, Weiwen Deng
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Patent number: 8924110Abstract: When a rotational speed of a secondary pulley is less than a first reference value, the disclosed electronic control device implements lower limit hydraulic control to adjust the hydraulic pressure of a primary pulley to be at a lower limit hydraulic pressure. When the rotational speed is equal to or exceeds the first reference value, but is less than a second reference value, the electronic control device implements balanced hydraulic control to adjust the hydraulic pressure to be more than the lower limit hydraulic pressure. When the rotational speed is equal to or exceeds the second reference value, the electronic control device implements feedback control to correct the hydraulic pressure on the basis of the size of the difference between a target transmission gear ratio and a transmission gear ratio, calculated on the basis of rotational speeds detected by each rotational speed sensor.Type: GrantFiled: March 18, 2010Date of Patent: December 30, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Taira Iraha, Kunio Hattori
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Patent number: 8886447Abstract: Disclosed is a technique for ranking a driver's fuel efficiency among other drivers based on various variables associated with the environment in which the vehicle is being driven. More particularly, the present invention, selects, as a category, one or more factors affecting fuel efficiency, and, as one or more, variables another one or more. Vehicle data is then collected by a communications device which is associated with a particular trip. Next an average of the fuel efficiencies and an average of the variables for the trip are calculated accordingly the selected one more categories. The fuel efficiency of the trip corresponding to a same category for every coordinate point of the variable is then statistically processed to calculate the average of the fuel efficiency and the standard deviation of the fuel efficiency and regularized (processed as a GAP calculation) to determine the ranking of a vehicle driver.Type: GrantFiled: April 27, 2011Date of Patent: November 11, 2014Assignees: Hyundai Motor Japan R&D Center, Inc., Hyundai Motor Company, Kia Motors CorporationInventor: Osamu Sawada
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Patent number: 8880308Abstract: A method and system of improving shift event performance in a vehicle with an automatic transmission. One or more accelerometers in the vehicle are used to sense one or more longitudinal acceleration values. The longitudinal acceleration values or values derived therefrom are compared with predetermined stored values. Shift event behavior is changed in response to differences between the one or more longitudinal acceleration values or values derived therefrom and the predetermined stored values.Type: GrantFiled: November 28, 2012Date of Patent: November 4, 2014Assignee: Chrysler Group LLCInventors: Hussein Dourra, Mircea Gradu, Michael Hall
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Publication number: 20140324307Abstract: A transmission controller increases an indicated hydraulic pressure to a starting frictional engagement element to a normal hydraulic pressure, causes a hydraulic piston to stroke and executes a learning control of the indicated hydraulic pressure so that a time until the starting frictional engagement element starts generating a transmission capacity after the range is switched from the neutral range to the drive range becomes a target time when a range is switched from a neutral range to a drive range. The transmission controller further detects a driver's starting intention and increases the indicated hydraulic pressure to the starting frictional engagement element to a starting time hydraulic pressure higher than the normal hydraulic pressure and prohibits the learning control if the starting intention is detected before the starting frictional engagement element starts generating the transmission capacity.Type: ApplicationFiled: October 4, 2012Publication date: October 30, 2014Applicant: JATCO LtdInventor: Hiromichi Akebono
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Patent number: 8874336Abstract: Featured is are methods and systems for bedding-in an automatic transmission of a vehicle prior to delivery of the vehicle to an end customer. Such a bedding-in method is performed so as to reduce the occurrence of shifting problems or concerns occurring during the initial stages of ownership of the vehicle. More particularly, such a bedding-in method includes providing an automatic transmission having a controller that is configured to measure and learn about powertrain variation(s) and configured to adapt one or more operational parameters associated with shifting of the automatic transmission. Such a method also includes operating the vehicle according to a predetermined protocol before the vehicle reaches an end customer. Such a protocol being established so the transmission controller can learn about powertrain variations and adapt operation of the transmission to minimize effects on shifting of the transmission.Type: GrantFiled: February 29, 2012Date of Patent: October 28, 2014Assignees: Hyundai America Technical Center, Inc., Kia Motors Corporation, Hyundai Motor CompanyInventors: Raymond J. Tessier, Jr., Anthony Golletti, Thomas Kieffer
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Patent number: 8831844Abstract: A method of learning the return spring pressure of a clutch in a vehicle having an engine and an automatic transmission includes selecting a clutch for analysis from a plurality of clutches of the transmission when the vehicle coasts for a predetermined duration. The method includes ramping down clutch pressure to the selected clutch until engine speed reaches idle and measuring the clutch pressure for the selected clutch after engine speed has remained at idle for a calibrated duration. An actual return spring pressure may be calculated as a function of the preliminary return spring pressure. The actual return spring pressure may be used thereafter to control a subsequent shift event of the transmission. A vehicle includes an engine, transmission, and controller configured to detect a predetermined coasting condition, and to execute code using a processor to thereby execute the above method. A system includes the transmission and controller.Type: GrantFiled: July 27, 2012Date of Patent: September 9, 2014Assignee: GM Global Technology Operations LLCInventor: Todd J. Thor
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Patent number: 8818676Abstract: An engine control system includes a torque request control module to determine a first engine torque request. An artificial neural network (ANN) torque request module determines a second engine torque request using an ANN model. A torque security check module that selectively generates a malfunction signal based on the difference between the first engine torque request and the second engine torque request.Type: GrantFiled: May 2, 2006Date of Patent: August 26, 2014Inventors: Jinchun Peng, Timothy J. Hartrey
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Patent number: 8781697Abstract: A target pressure module determines a target pressure for controlling a solenoid of a transmission. An error module determines a pressure error based on a difference between the target pressure and a pressure measured using a pressure sensor. A pressure offset module determines a pressure offset using the target pressure and a mapping of pressure offsets indexed by target pressure. An offset learning module selectively determines a learned pressure offset and selectively updates the mapping based on the learned pressure offset. A pressure command module selectively generates a commanded pressure based on the target pressure, the pressure offset, and the pressure error. A solenoid control module controls actuation of the solenoid based on the commanded pressure.Type: GrantFiled: August 31, 2011Date of Patent: July 15, 2014Inventors: Paul G. Otanez, Randall B. Dlugoss
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Patent number: 8768848Abstract: At or before time t2 when a kick-down switch was off, the higher speed a shift ratio selected by a driver is for, the smaller value a restriction rate K is set to. Consequently, driving force in a Mid-gear ratio is more restricted than driving force in a Lo-gear ratio. Further, driving force in a Hi-gear ratio is more restricted than driving force in the Mid-gear ratio. At time t2 when the kick-down switch changes from off to on, the restriction on driving force employing a restriction rate K is removed, whereupon an increment ? in driving force in the Hi-gear ratio is, as it had a greater restricted amount during KD OFF, greater than an increment ? in driving force in the Mid-gear ratio. A natural kick-down feeling responsive to the selected shift ratio is thus realized.Type: GrantFiled: January 27, 2010Date of Patent: July 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Shunsuke Oyama
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Patent number: 8755969Abstract: A bicycle suspension control apparatus includes a user operating device and a control device. The control device is operatively coupled to the user operating device to selectively control a front bicycle suspension between a plurality of operating states and a rear bicycle suspension between a plurality of operating states. The control device is configured to selectively change the operating states of both the front and rear bicycle suspensions to different ones of the operating states in response to a single operation of the user operating device. The control device controls the front and rear bicycle suspensions such that a first operating state change operation of one of the front and rear bicycle suspensions occurs later than a second operating state change operation of the other of the front and rear bicycle suspensions.Type: GrantFiled: February 10, 2012Date of Patent: June 17, 2014Assignee: Shimano Inc.Inventors: Tadashi Ichida, Hideki Ikemoto, Toyoto Shirai
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Patent number: 8744653Abstract: A control apparatus for controlling a transmission apparatus that includes: an input member that is drivably connected to a rotating electrical machine being capable of generating regenerative torque based on an engine and a deceleration request of a vehicle; an output member that is drivably connected to wheels; and a speed change mechanism that has a plurality of friction engagement elements that are controlled to be engaged and released so as to switch a plurality of shift speeds, and that shifts a rotation speed of the input member at one of gear ratios set for the shift speeds and outputs the shifted speed to the output member.Type: GrantFiled: December 30, 2009Date of Patent: June 3, 2014Assignee: Aisin AW Co., Ltd.Inventors: Shigekazu Hase, Hiroya Ueno, Kohei Tsuda, Eiji Moriyama, Hiroshi Tsutsui
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Patent number: 8738551Abstract: A method for storing data in a memory may include when the data may be obtained under a variable condition, determining a cell corresponding to an area of the variable condition from an entire memory area, storing the data in the cell and dividing the cell storing the data into a plurality of cells, and whenever a new data may be obtained under a new variable condition, determining a new cell corresponding to an area of the new variable condition under which the new data may be obtained, from the plurality of cells of the entire memory area and repeating storing of the new data and dividing of the new cell.Type: GrantFiled: October 12, 2011Date of Patent: May 27, 2014Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Byeong Wook Jeon
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Patent number: 8738228Abstract: A method for tuning a vehicle's performance may include measuring a plurality of parameters representing the vehicle's current handling condition and the vehicle's limit handling condition, determining a margin between the vehicle's current handling condition and limit handling condition, characterizing the driver's dynamic control of the vehicle based on the margin, and altering at least one tunable vehicle performance parameter based on the characterization.Type: GrantFiled: October 30, 2009Date of Patent: May 27, 2014Assignee: Ford Global Technologies, LLCInventors: Dimitar Petrov Filev, Jianbo Lu, Kwaku O. Prakah-Asante, Fling Tseng
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Publication number: 20140088843Abstract: A method provides for adapting shifts to be carried out in a transmission of a motor vehicle. The shifts are triggered by a transmission control unit and are is controlled and/or governed by the transmission control unit. An actual value corresponding to an acceleration of the motor vehicle is recorded by measuring instruments and is compared to a corresponding target value. On the basis of a deviation between the actual value and the target value, the carrying out of the subsequent shifts of the transmission control unit is adapted. The actual value corresponding to an acceleration of the motor vehicle is individually recorded for several consecutive shift stages of each shift, whereas the actual value in the individual shift stages is compared to the target value in the individual shift stages of the transmission control unit.Type: ApplicationFiled: March 20, 2012Publication date: March 27, 2014Applicant: ZF Friedrichshafen AGInventors: Rudolf Kalthoff, Jörg Kurth, Roland Mair, Thomas Jäger, Florian Schneider