Transmission Control Patents (Class 701/51)
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Patent number: 11625959Abstract: A system and method for determining backlash in a driving system of a vehicle are provided. The system includes a motor speed sensor that detects a motor speed and a wheel speed sensor that detects a wheel speed. A speed difference determination unit receives the detected motor and wheel speeds and determines a rotational speed difference of the driving system. A torsion speed determination unit receives the determined rotational speed difference and determines a reference torsion speed for backlash determination of the driving system. A backlash determination unit receives the determined rotational speed difference and the determined reference torsion speed, determines a backlash speed corresponding to a difference between the rotational speed difference and the reference torsion speed, and determines whether backlash in the driving system occurs using the determined backlash speed.Type: GrantFiled: April 22, 2020Date of Patent: April 11, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ji Won Oh, Jeong Soo Eo
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Patent number: 11627574Abstract: Aspects of the disclosure relate to downlink (DL) transmissions using various powers and assigning frequency resources based on the powers. An example base station may transmit, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first DL transmission on a first downlink (DL) resource on a carrier, the first DL resource being at a first frequency. The first DL resource may be at a first frequency. The first Tx power may have a power level configured based on a difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier. Then, the base station may transmit the first DL transmission using the first frequency and the first Tx power. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: May 27, 2021Date of Patent: April 11, 2023Assignee: QUALCOMM IncorporatedInventors: Ahmed Attia Abotabl, Muhammad Sayed Khairy Abdelghaffar, Shimman Arvind Patel, Wanshi Chen, Huilin Xu, Hwan Joon Kwon, Krishna Kiran Mukkavilli, Tingfang Ji
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Patent number: 11614161Abstract: A method for determining reference values of a sensor corresponding to a disengaged operating condition or to an engaged operating condition of a hydraulically actuatable, form-locking shift element (A, F), where at least one operating parameter of the form-locking shift element (A, F) is detected with the sensor during a disengagement and during an engagement of the form-locking shift element (A, F). The method may include subdividing an operating range of the shift form-locking element (A, F) into temperature and pressure classes. The method may further include determining a deviation between a current reference value for a temperature and pressure class of the temperature and pressure classes and an adapted reference value previously determined for the temperature and pressure class. Additionally, the method may include increasing or decreasing the adapted reference value by a predefined increment based on the deviation.Type: GrantFiled: December 2, 2019Date of Patent: March 28, 2023Assignee: ZF FRIEDRICHSHAFEN AGInventors: Christian Pannek, Martina Jehle
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Patent number: 11584478Abstract: A control device includes an electronic controller configured to automatically control a transmission device of a human-powered vehicle in accordance with a shifting condition. The electronic controller is configured to set the shifting condition based on first reference information including information related to change in transmission ratio that is shifted by the transmission device.Type: GrantFiled: September 18, 2019Date of Patent: February 21, 2023Assignee: Shimano Inc.Inventor: Satoshi Shahana
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Patent number: 11565766Abstract: An operating device is basically provided with a base, a first operating member, a second operating member and an electric operating unit. The base is configured to mount the operating device to a handlebar. The base defines a mounting axis. The first operating member is pivotally arranged with respect to the base around a pivot axis. The second operating member is pivotally arranged with respect to the base around the pivot axis. The second operating member is a separate member from the first operating member. The electric operating unit is configured to be activated in response to a pivotal movement of the first operating member. The first operating member is arranged closer to the mounting axis than the electric operating unit.Type: GrantFiled: May 27, 2020Date of Patent: January 31, 2023Assignee: Shimano Inc.Inventor: Kentaro Kosaka
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Patent number: 11518397Abstract: When a driver is not in pedal erroneous operation inducing situation and a rate of change in an operation amount of an accelerator pedal is equal to or greater than a first erroneous operation determination threshold value, a driving assistance apparatus determines that operation of the accelerator pedal is erroneous operation. When the driver is in the pedal erroneous operation inducing situation and the rate of change in the operation amount of the accelerator pedal is equal to or greater than a second erroneous operation determination threshold value, the riving assistance apparatus determines that the operation of the accelerator pedal is the erroneous operation, and the second erroneous operation determination threshold value is smaller than the first erroneous operation determination threshold value.Type: GrantFiled: October 20, 2020Date of Patent: December 6, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kohei Tochigi, Yuta Ikezawa, Shogo Ito
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Patent number: 11512775Abstract: A shift range control device includes: multiple controllers that communicate with each other and control driving of a motor. The multiple controllers share control information, and include a first controller and a second controller. When the control information of the first controller is different from the control information of the second controller, one of the first controller and the second controller is set as a continuation controller, and a different one of the first controller and the second controller is set as a stop controller. The stop controller stops the drive control. The continuation controller performs the drive control of the motor.Type: GrantFiled: May 6, 2020Date of Patent: November 29, 2022Assignee: DENSO CORPORATIONInventor: Kouji Sakaguchi
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Patent number: 11505015Abstract: A system for determining a tire pressure status in a vehicle is provided. The system includes at least one processing device, which may be arranged to: estimate values of a set of predetermined vehicle parameters; calculate a tire pressure parameter as a predetermined function of the values of the set of predetermined vehicle parameters, wherein said predetermined function has been generated by training a machine learning system, such as, for example, a neural network or a Support Vector Machine, using values of a large number of sets of predetermined vehicle parameters and associated tire pressure parameters; and determine a tire pressure status, indicating whether or not there is tire under-inflation, by comparing said tire pressure parameter with a threshold.Type: GrantFiled: December 20, 2018Date of Patent: November 22, 2022Assignee: Nira Dynamics ABInventor: Rickard Karlsson
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Patent number: 11454301Abstract: A driveline assembly for a recreational vehicle may include an engine and an automated sequential transmission.Type: GrantFiled: July 20, 2020Date of Patent: September 27, 2022Assignee: Polaris Industries Inc.Inventors: David A. Galsworthy, Gary A. Pinkley, Adrien Lechat, Zacharey J. Hussong
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Patent number: 11428175Abstract: Systems and methods are provided for controlling a power plant during use of a power take-off (PTO) device, wherein the responsiveness and stability of the controller are adjustable by an operator in the field. The use of setting maps allows fine tuning of controller responsiveness while also ensuring that expected performance would be achieved at any setting within the setting map. In some embodiments, a proportional-integral-derivative (PID) controller is used to control engine speed, and gains for the proportional, integral, and derivative terms are obtained from setting maps based on a responsiveness setting chosen by a vehicle operator.Type: GrantFiled: April 2, 2020Date of Patent: August 30, 2022Assignee: PACCAR Inc.Inventors: Burton Edwin Waite, III, James David Castner, Charles Wayne Reinhardt Swart
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Patent number: 11407402Abstract: A driving torque command generating apparatus and method of operating a hybrid electric vehicle can obtain torsional state observation values using an engine speed, a motor speed, and a wheel speed detected by an engine speed detector, a motor speed detector, and a wheel speed detector, respectively, together with a motor torque command generated in a previous period, and generate an engine torque command and a motor torque command of a driving torque command based on a driving input value input by a driving input detector and the torsional state observation values.Type: GrantFiled: October 3, 2019Date of Patent: August 9, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ji Won Oh, Young Joon Chang, Jeong Soo Eo, Youn Kwang Jung, Sung Jae Kim
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Patent number: 11400946Abstract: A method for managing a powertrain (3) of a motor vehicle (1) comprises the following steps: (a) determining a predictive rolling resistance coefficient (Crr) for at least one tyre (10) of the motor vehicle (1); and (b) adapting the operation of the powertrain (3) according to the predictive rolling resistance coefficient (Crr) in order notably to optimize the energy consumption of the motor vehicle (1).Type: GrantFiled: July 18, 2018Date of Patent: August 2, 2022Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Francois-Jacques Cordonnier, Frederic Domprobst
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Patent number: 11378029Abstract: Disclosed is a method for synchronizing an engine including a camshaft and a position sensor for sensing the position of the camshaft. The method includes, for each detected tooth edge: computing a time signature of the detected edge; comparing the time signature of the detected edge with a set of theoretical signatures of edges of the target including a theoretical signature for each edge of the target, the comparison being implemented through a tolerance; and generating a synchronization or synchronization fault signal as a function of the result of the comparison. When the engine speed drops below a predetermined threshold, the tolerance adopted for comparing the time signature of a detected edge with the theoretical signature of an edge of the target is reduced in relation to the tolerance adopted for the same comparison before the engine speed drops below the threshold.Type: GrantFiled: September 26, 2019Date of Patent: July 5, 2022Assignee: VITESCO TECHNOLOGIES GMBHInventors: Camille Denert, Benjamin Marconato, Nora-Marie Gouzenes
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Patent number: 11339555Abstract: A process for determining a setpoint rotational speed of a work machine engine, having a continuously variable transmission, based on operation of power hydraulics. The setpoint rotational speed for highly productive operation is determined, without knowledge current operation of the power hydraulics, by a basic engine speed setting. With knowledge of the current operating state, the setpoint rotational speed is determined by the basic speed settings and low or high engine speed settings. The low speed setting alone determines setpoint rotational speeds that are lower than the basic speed setting or a combination of the low and basic speed settings. The high speed setting alone determines setpoint rotational speeds that are higher than the basic speed setting or a combination of the basic and high speed settings. The speed settings can comprise a setpoint rotational speed range of above a reciprocal transmission range of the variable transmission.Type: GrantFiled: January 23, 2018Date of Patent: May 24, 2022Assignee: ZF Friedrichshafen AGInventors: Jan-Frederik Kuhn, Stefan Traub, Stephan Schinacher, Marcus Hiemer, Robert Morrison, Jürgen Legner, Sven Bieber
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Patent number: 11303620Abstract: The present disclosure relates to a realtime urban traffic status monitoring method based on privacy-preserving compressive sensing, including the following steps: step S1: dividing vehicle data under privacy preserving into two parts, and sending the two parts to two different road side units (RSU) for preprocessing; step S2: outsourcing, by the two different RSUs, preprocessed vehicle data to two cloud platforms (CP) respectively, and designing a data encryption execution protocol based on a finally expected operation result and interactive operation between the two CPs, to encrypt the data; and step S3: receiving, by a navigation service provider (NSP), encrypted data from the CPs, decrypting the received encrypted data, and estimating an urban traffic status by using a compressive sensing technology.Type: GrantFiled: January 20, 2021Date of Patent: April 12, 2022Assignee: FUZHOU UNIVERSITYInventors: Ximeng Liu, Wenzhong Guo, Jiayin Li, Xiaoyan Li, Hongbin Zhuang
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Patent number: 11292519Abstract: A calibration method in which, a rotation angle calculation device calculates a rotation angle based on a detection signal of a sensor, transmits rotation angle data indicating the rotation angle to a calibration device, and transmits time difference data relating to a time difference after having captured the detection signal until transmitting the rotation angle data to the calibration device, and in which the calibration device measures a rotation angle, clocks a measurement time at which the rotation angle is measured and a transmission time of transmitting or receiving the rotation angle data, and acquires calibration data of the rotation angle data by comparing the rotation angle measured at a time obtained by going back in time from the transmission time by the time difference after having captured the detection signal until transmitting the rotation angle data and the rotation angle data with each other.Type: GrantFiled: December 16, 2020Date of Patent: April 5, 2022Assignee: NSK LTD.Inventors: Yusuke Nishioka, Yoshihiro Aosaki, Hiroyuki Yamamura
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Patent number: 11279363Abstract: A method of controlling a drive device of a construction machine with a split transmission, which is at least coupled, at an input side, to a drive force source and, on the output side, with a drive range change transmission so as to set at least two shiftable drive ranges. The method includes a detection step (S1) for detecting drive dynamic requests for operation of the construction machine and a determination step (S2) for determining whether a drive dynamic request with an increased drive dynamic is present. If a drive dynamic request with increased drive dynamics is determined, then a shifting step (S4) is executed for shifting the drive range change transmission from a second, of the at least two drive ranges, to a first of the at least two drive ranges, to achieve increased driving dynamics of the construction machine.Type: GrantFiled: March 18, 2020Date of Patent: March 22, 2022Assignee: ZF Friedrichshafen AGInventors: Simon Geiger, Matthias Madlener, Stephan Schinacher, Matthias Duller
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Patent number: 11242672Abstract: A wheel loader configured to reduce a sudden change in vehicle speed caused by an erroneous determination of a raising operation of a lift arm is provided. A wheel loader 1 includes an engine 3, a variable displacement type HST pump 41, a variable displacement type HST motor 42 coupled to the HST pump 41 in a closed circuit, a hydraulic pump for working device 43, a forward/reverse selector switch 62 for switching a forward movement and a backward movement of a vehicle body, a depression amount sensor 610 that detects a depression amount of an accelerator pedal 61, a pressure sensor 73 that detects a discharge pressure Pa of the hydraulic pump for working device 43, and a controller 5. The controller 5 determines whether a specific condition to identify an upward movement of a lift arm 21 during a forward travel of the vehicle body based on a forward/reverse switching signal, the depression amount of the accelerator pedal 61, and the discharge pressure Pa detected by the pressure sensor 73.Type: GrantFiled: September 29, 2017Date of Patent: February 8, 2022Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Koji Hyodo, Isamu Aoki, Tetsuji Tanaka, Koji Shimazaki, Hironao Suzuki
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Patent number: 11186127Abstract: A rotary joint for use with a central tire inflation system and a network of sensorized components for a driveline is provided. The rotary joint comprises a sealing gasket wear detection system and a rotary encoder disposed within a joint cavity. The network of sensorized components comprises a sensorized wheel hub, a transmission speed sensor, and a controller in communication with the sensorized wheel hub and the transmission speed sensor through a communication bus. A method of utilizing a network of sensorized components to analyze a driveline and a method for monitoring a wear of a sealing gasket of a rotary joint is also provided.Type: GrantFiled: March 8, 2019Date of Patent: November 30, 2021Assignee: DANA ITALIA S.R.LInventors: Carlos Maximiliano Giorgio Bort, Alessandro Massei, Giulio Ornella, Donald J. Remboski, Doug D. Turner, Fabrizio Zendri
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Patent number: 11187319Abstract: A method for learning a reference position of a DCT gear motor is proposed. The method includes: a first voltage supply step of supplying voltage to the motor to allow the motor to rotate to a stored reference point; a second voltage supply step of repeating a process that increases the level of the voltage supplied to the motor to a higher level than the level of the voltage applied in the first voltage supply step and decreases the level, wherein the voltage is supplied to the motor to gradually increase the level thereof; a step of monitoring a position change of the motor; a step of stopping voltage supply to the motor when a temporary position change is generated in the motor to remove the temporary position change; and a step of setting the current position of the motor as a new reference point.Type: GrantFiled: December 9, 2020Date of Patent: November 30, 2021Assignee: Hyundai Kefico CorporationInventors: Nam Hun Kim, Tae Su Kim
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Patent number: 11187318Abstract: A vehicle includes an engine; a continuously variable transmission; an output clutch disposed between the continuously variable transmission and the drive wheel; a drive motor coupled between the output clutch and the drive wheel; a traveling mode controller; and a speed ratio controller. In a case where required driving power based on an accelerator position is less than a first threshold, the traveling mode controller switches a traveling mode to a first traveling mode. In a case where the required driving power is equal to or greater than the first threshold, the traveling mode controller switches the traveling mode to a second traveling mode. In a case where the required driving power is less than the first threshold and equal to or greater than a second threshold, the speed ratio controller causes a speed ratio of the continuously variable transmission to change depending on a vehicle speed.Type: GrantFiled: October 1, 2020Date of Patent: November 30, 2021Assignee: SUBARU CORPORATIONInventors: Satoshi Inoue, Kazuhiro Yoshida, Takuya Machida
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Patent number: 11180131Abstract: A control system for hybrid vehicles for reducing a shock caused by a change in an output torque of a transmission during a shifting operation of a transmission. In the hybrid vehicle, an engine and a first motor are connected to an input side of an automatic transmission, and a second motor is connected to an output side of the automatic transmission. A controller calculates a change in an output torque of the transmission when establishing a predetermined gear stage, based on a torque capacity of an engagement device to be engaged and an input torque to the transmission, and select one of the first motor and the second motor that requires less power to reduce the change in the output torque of the automatic transmission.Type: GrantFiled: November 8, 2018Date of Patent: November 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Jonggap Kim
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Patent number: 11173899Abstract: A control device for forward collision avoidance in a vehicle includes a forward object determination unit configured to recognize an object in front of the vehicle and to determine an attribute of the recognized object, a gear position detection unit configured to detect a gear position of the vehicle, and a forward collision-avoidance assist (FCA) control unit configured to finally determine the attribute of the object determined by the forward object determination unit according to the gear position input from the gear position detection unit and to set an FCA control range based on the finally determined object attribute.Type: GrantFiled: July 2, 2019Date of Patent: November 16, 2021Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Tae Keun Cho
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Patent number: 11167765Abstract: Provided is a wheel loader in which the speed position of the transmission can be easily changed with a small number of switches. The wheel loader 1 includes a tilting angle sensor 9 for detecting the tilting angle of the vehicle body. In case that the vehicle body is traveling on an uphill or a downhill with a transmission 33 in a higher speed position than the lowest speed position, and the tilting angle detected by the tilting angle sensor 9 is not smaller than a prescribed threshold value, a transmission control device 45 sends the transmission 33 a command to downshift the transmission 33 one speed position by each operation of a shiftdown switch 62.Type: GrantFiled: March 5, 2019Date of Patent: November 9, 2021Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Keisuke Naitou, Ryou Taniguchi
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Patent number: 11125572Abstract: There is achieved an electronic control device capable of calculating an optimal travel plan even during dynamic reconfiguration of a calculation circuit configuration. When a driving state changes, a travel plan parameter generation/selection unit divides evaluation calculation units into two blocks and performs reconfiguration of the respective evaluation calculation units a plurality of times via a reconfiguration control unit. While the evaluation calculation units are reconfigured, the evaluation calculation units performs evaluation calculation, and while the evaluation calculation units are reconfigured, the evaluation calculation units perform evaluation calculation. Thus, even while some of the evaluation calculation units are being reconfigured, it is possible to continue evaluation of the travel plan in the rest of the evaluation calculation units.Type: GrantFiled: October 26, 2017Date of Patent: September 21, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Ryoichi Inada, Tatsuya Horiguchi, Teppei Hirotsu, Hideyuki Sakamoto
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Patent number: 11124172Abstract: The invention relates to a method and an arrangement for controlling a gearshift in a vehicle with a transmission (120) comprising a stepped gearing, the transmission (120) being arranged between an engine (110) and at least one driven axle (123), wherein the engine and the transmission are controlled by an electronic control unit (140), The method involves monitoring at least one parameter related to a vehicle operating condition; registering that a manual upshift command is requested; determining a desired shift point and a target engine speed based on a parameter comprising at least current engine speed; and performing an upshift when the target engine speed is reached.Type: GrantFiled: March 27, 2017Date of Patent: September 21, 2021Assignee: VOLVO TRUCK CORPORATIONInventors: Niklas Öberg, Anders Eriksson
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Patent number: 11118674Abstract: A control unit (11) that outputs a shift signal to a transmission (4) when the control unit recognizes that the bucket (1) is in a loading position, such that the transmission (4) shifts not to the next-higher gear ratio, but to a further, even higher, gear ratio.Type: GrantFiled: November 7, 2018Date of Patent: September 14, 2021Assignee: ZF Friedrichshafen AGInventors: Andreas Schwarz, Thomas Kurz
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Patent number: 11117461Abstract: The invention relates to a drive train for a hybrid vehicle with an internal combustion engine, with a transmission and with an electric machine, wherein the electric machine is arranged between the internal combustion engine and the transmission. The drive train can be provided in a simple, economical and/or space-saving manner in that the transmission comprises at least one overrun-enabled forward gear transmitting traction torque only and at least one overrun-free forward gear. A hybrid vehicle can be operated with a drive train of this kind easily and efficiently in that, when an overrun-enabled forward gear transmitting only traction torque is engaged and while the vehicle speed lies below a certain engagement speed for an overrun-free forward gear and at least one criterion for the presence of a driving torque is established or satisfied, the transmission is shifted into the overrun-free forward gear.Type: GrantFiled: May 16, 2018Date of Patent: September 14, 2021Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Wolfgang Vöge, Jannis Zimmermann
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Patent number: 11105413Abstract: The gear position measuring device includes a switch, an output unit, a processor, and a storage. The switch includes multiple individual contacts respectively corresponding to the multiple gear positions. The multiple individual contacts are separated into multiple gear position groups that include at least two of the multiple individual contacts. The output unit includes circuits so that the individual contacts for the gear positions of each of the multiple gear position groups are connected to the same circuit, thereby being able to output from the circuits that are different for each of the multiple gear position groups. When an output value from the output unit is changed, the processor determines a current gear position on the basis of the gear position stored in the storage and the multiple gear positions corresponding to the output value from the output unit.Type: GrantFiled: March 28, 2019Date of Patent: August 31, 2021Assignee: HONDA MOTOR CO., LTD.Inventors: Akira Mogi, Atsuki Sato
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Patent number: 11105421Abstract: A Controller constitutes a control device for a vehicle having an automatic transmission on which a shift-by-wire system is mounted. The controller changes display of an range indicator to N-range display after disengagement determination of an power transmission clutch is made when a shifting operation from a D range to a N range is performed.Type: GrantFiled: October 17, 2017Date of Patent: August 31, 2021Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Takateru Kawaguchi, Fumitaka Nagashima, Hideharu Yamamoto
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Patent number: 11105418Abstract: An ECU determines whether or not a road surface changes from a low ? road surface to a high ? road surface based on image data obtained by a camera sense. When the ECU determines that the accelerator pedal operation amount deceases greatly in a predetermined determination period from a time point at which a drive wheel slip state occurs in a case where the ECU determines that the road surface changes from the low ? road surface to the high ? road surface, it prohibits upshift operation of an automatic transmission over a predetermined period from that time point.Type: GrantFiled: February 3, 2020Date of Patent: August 31, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Ryochi Watanabe
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Patent number: 11052925Abstract: A target vehicle speed generation device generates a target vehicle speed of a driving-assisted vehicle (autonomously driven vehicle). The target vehicle speed generation device includes a controller that includes a plurality of vehicle speed command generation units and generates a target vehicle speed for when the vehicle is to travel/stop. The controller includes a look-ahead vehicle speed command calculation unit and a lowest vehicle speed command mediation unit. The look-ahead vehicle speed command calculation unit calculates a look-ahead vehicle speed command value that comes after the elapse of a prescribed amount of time from a present time for each vehicle speed command value generated by the plurality of vehicle speed command generation units. The lowest vehicle speed command mediation unit selects a lowest value among the plurality of look-ahead vehicle speed command values calculated by the look-ahead vehicle speed command calculation unit.Type: GrantFiled: July 3, 2017Date of Patent: July 6, 2021Assignee: Nissan Motor Co., Ltd.Inventors: Akinobu Gotou, Takashi Fukushige, Satoshi Tange
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Patent number: 11054024Abstract: A shift by wire-based transmission system and a method for controlling the same, may include a transmission lever, a main controller that determines a target gear stage and a current control delay time of an actuator based on a manipulation signal received from the transmission lever and controls driving of the actuator based on the determined target gear stage and the current control delay time to determine a gear stage position in a response to the driving of the actuator, and a transmission control unit that controls a hydraulic pressure based on the gear stage position determined by the main controller.Type: GrantFiled: October 23, 2019Date of Patent: July 6, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Sang Hyun Jeong, Gyeong Cheol Kim, Dae Won Yang
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Patent number: 11046325Abstract: A vehicle control system and method utilize a transmission control module configured to generate a first target speed for a torque generating system for executing a downshift of an automatic transmission and a torque generating system control module configured to determine a second target speed for the torque generating system for executing the downshift of the automatic transmission, determine upper and lower target speed limits for the torque generating system for executing the downshift of the automatic transmission, based on the first and second target speeds and the upper and lower target speed limits, determine a final target speed for the torque generating system for executing the downshift of the automatic transmission, determine a target torque output for the torque generating system based on a current speed of and the final target speed for the torque generating system, and control the torque generating system based on the target torque output.Type: GrantFiled: March 13, 2020Date of Patent: June 29, 2021Assignee: FCA US LLCInventors: Chandrashekar Boopalam, Chandrakant Gavara
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Patent number: 11029233Abstract: The input/output characteristic estimation method for testing system comprises; first excitation measurement steps (S3-S5) in which an input obtained by superimposing an excitation input d2 onto a second torque control input ib2 is input to a second dynamometer, and the frequency response i2d2 with respect to the excitation input d2 is measured; second excitation measurement steps (S7-S9) in which input obtained by superimposing excitation input d3 on third torque control input ib3 is input to a third dynamometer, and frequency response i2d3 with respect to the excitation input d3 and the like are measured; and mechanical characteristic estimation steps (S11 and S12) in which the response measured in the first and second excitation measurement steps are used to estimate the transfer function Gt2_i2 and the like from the second or third torque current command signals (i2, i3) to the first or second axial torque detection signals (t2 or t3).Type: GrantFiled: March 9, 2018Date of Patent: June 8, 2021Assignee: Meidensha CorporationInventor: Takao Akiyama
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Patent number: 11028919Abstract: An apparatus and a method for controlling shifting of a vehicle are provided. The apparatus includes a transmission configured to transmit power generated from by a motor to a vehicle wheel, and a controller configured to control an operation of the transmission. The controller is configured to enter a LURCH control mode when sensing shifting of a shift lever between a D range and an R range during driving to maintain a clutch torque in the transmission, to decrease a vehicle speed by controlling a motor speed, and to shift a gear of the vehicle by changing a motor torque when the vehicle speed reaches a threshold speed.Type: GrantFiled: March 10, 2020Date of Patent: June 8, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Hyun Woo Lim
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Patent number: 11028558Abstract: A controller determines a compensation factor from an operating amount of an accelerator operating member and a hydraulic pressure of at least one of a first circuit and a second circuit. The controller determines a target vehicle speed from the operating amount of the accelerator operating member. The controller determines at least one of a target displacement of a travel pump and a target displacement of a travel motor from the target vehicle speed and the compensation factor.Type: GrantFiled: January 21, 2019Date of Patent: June 8, 2021Assignee: KOMATSU LTD.Inventor: Takahisa Oasa
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Patent number: 11027720Abstract: A hybrid vehicle includes an engine; a motor generator; and an electronic control unit to control the engine and the motor generator. Further, when an engine speed thereof is increased, the electronic control unit calculates an engine torque by adding an engine inertia torque to a request engine torque and cause the engine to output the calculated engine torque, and cause the motor generator to output a reaction torque in response to the request engine torque, and the electronic control unit performs control so that a torque assistance amount exerted by the motor generator is changeable while the engine speed is increased.Type: GrantFiled: February 11, 2019Date of Patent: June 8, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taro Moteki, Kenji Itagaki, Koichi Kato
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Patent number: 11004333Abstract: A method, computer system, and a computer program product for detecting a plurality of influential factors for traffic congestion is provided. The present invention may include identifying one or more influential roads and one or more influential routings associated with an object road in a target road network. The present invention may also include quantifying an impact associated with the identified one or more influential roads and the identified one or more influential routings associated with the object road, wherein at least one Impact Matrix is utilized to determine a road-by-road influence in connection to the target road network.Type: GrantFiled: November 29, 2018Date of Patent: May 11, 2021Assignee: International Business Machines CorporationInventors: Jing James Xu, Jing Xu, Jun Wang, Xiaoyang Yang, Ji Hui Yang
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Patent number: 10990098Abstract: A vehicle control apparatus including a surrounding circumstances detector detecting surrounding circumstances of a self-driving vehicle and a microprocessor generating an action plan including a target path of the self-driving vehicle based on the surrounding circumstances detected and controlling a driving component so that the self-driving vehicle travels by self-driving in accordance with the action plan. The microprocessor is configured to perform calculating a hindrance time a first action plan is hindered when a second action plan is generated, determining whether the hindrance time is shorter than a predetermined time period, and controlling the driving component to keep a first state according to the first action plan when the hindrance time is shorter than the predetermined time period, while to change to a second state according to the second action plan when the hindrance time is longer than or equal to the predetermined time period.Type: GrantFiled: October 30, 2018Date of Patent: April 27, 2021Assignee: Honda Motor Co., Ltd.Inventors: Takayuki Kishi, Akira Kito, Yoshiaki Konishi, Toshiyuki Mizuno
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Patent number: 10975961Abstract: This vehicle control device 10 is provided with: a current gear stage selection unit 13 which, on the basis of the travel resistance of the vehicle, selects a current gear stage, which is the gear stage of the vehicle in the current travel segment where the vehicle is traveling; a next gear stage selection unit 16 which selects a next gear stage, which will be the gear stage of the vehicle in the next travel segment, forwards in the travel direction of the vehicle, having a road slope different from that of the current travel segment; and a shift control unit 17 which, if during travel of the vehicle in the current travel segment in the current gear stage, the current gear stage selection unit 13 has newly selected a target gear stage higher than the next gear stage, controls shifting such that upshifting from the current gear stage to the target gear stage is suppressed and the current gear stage is maintained.Type: GrantFiled: May 10, 2018Date of Patent: April 13, 2021Assignee: ISUZU MOTORS LIMITEDInventors: Tatsuya Ooshima, Nobuyuki Nishimura
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Patent number: 10974723Abstract: A drive force control system for improving operational easiness of an accelerator. The control system is configured to: set a slope of a target acceleration such that the target acceleration is increased with a reduction in a vehicle speed; detect an operating period of the accelerator between turning points at which an operating speed of the accelerator is changed from a low speed to a high speed; set the slope of the target acceleration in accordance with the detected operating period; and set the slope of the target acceleration of a case in which the operating period of the accelerator is longer than a predetermined operating period steeper than the slope of the target acceleration set in accordance with the predetermined operating period.Type: GrantFiled: December 3, 2018Date of Patent: April 13, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshihito Kanno
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Patent number: 10960882Abstract: Methods and systems are provided for providing off-road capabilities in electric vehicles with a single gear reduction. In one example, when a 4×4 mode is selected in an electric vehicle, a relationship between motor torque and accelerator pedal position is changed so as to increase the vehicle creep wheel torque. A degree of increase of the creep wheel torque is adjusted as a function of the terrain on which the vehicle is off-roading.Type: GrantFiled: June 18, 2019Date of Patent: March 30, 2021Assignee: Ford Global Technologies, LLCInventors: Kevin Ray Ruybal, Rajit Johri, Jose Velazquez Alcantar
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Patent number: 10955046Abstract: A control device that includes an electronic control unit that is configured to perform, when specific control that causes a change in a state of a hydraulic circuit in the hydraulic control device that involves an increase in hydraulic pressure at the discharge port is performed in a state in which a rotational speed of the electric motor is a first rotational speed, torque increase control that controls drive of the electric motor such that torque of the electric motor starts to increase before hydraulic pressure at the discharge port increases by the specific control.Type: GrantFiled: August 27, 2018Date of Patent: March 23, 2021Assignee: AISIN AW CO., LTD.Inventors: Keisuke Nishimura, Yoichi Tajima, Kazuomi Okasaka
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Patent number: 10927952Abstract: A shifting controller controls a shifting device of a human-powered vehicle and includes a data acquisition interface, a data storage device, and a control unit. The data acquisition interface is configured to acquire a first reference value of a first variable in relation to the human-powered vehicle. The data storage device has stored therein a shifting condition specified by at least one of a direction of change, an amount of change, and a rate of change that are information on a change in the first variable. The control unit includes a processor that is configured to control the shifting device based on a change in the first reference value and the shifting condition.Type: GrantFiled: March 5, 2019Date of Patent: February 23, 2021Assignee: Shimano Inc.Inventors: Satoshi Shahana, Takehiko Nakajima
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Patent number: 10907976Abstract: A network system evaluates candidate GPS routes with respect to map routes that are based on ground truth map data to identify defects in the ground truth map data. Defects in the ground truth map data may include inconsistencies between various attributes of the map data and the actual road network represented by the candidate GPS routes under evaluation. The network system corrects the identified feedback to ensure that the ground truth map data accurately reflects the attributes of the actual road network.Type: GrantFiled: November 8, 2018Date of Patent: February 2, 2021Assignee: Uber Technologies, Inc.Inventors: Jialin Jiao, Berk Gurakan, Vikram Saxena, Haider Ali Razvi
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Patent number: 10900796Abstract: Aspects of the disclosure relate to enhanced telematics processing systems with improved third party source data integration features and enhanced customized driving output determinations. A computing platform may receive telematics data and third party source data. The computing platform may enrich the telematics data using the third party source data. After generating the enriched telematics data, the computing platform may use machine learning algorithms and datasets to validate the enriched telematics data. The computing platform may ingest, via a batch ingestion process, the enriched telematics data. For example, the computing platform may store the enriched telematics data and generate additional enriched telematics data until expiration of a predetermined period of time. The computing platform may ingest the enriched telematics data associated with each trip. Once the enriched telematics data has been ingested, the computing platform may generate a standardized common trip format output for each trip.Type: GrantFiled: April 9, 2018Date of Patent: January 26, 2021Assignee: Allstate Insurance CompanyInventors: Zoran Navratil, Kevin Patrick Rice, Daniel Brian Mohnen, Kevin Glickley, Nilesh Ponnala, Rahul Chandrawanshi
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Patent number: 10894540Abstract: A vehicle control apparatus includes: a brake control portion which is configured, when a vehicle is stopped, to cause a braking apparatus to keep a stopped state in which the vehicle is held stopped independently of operation of a brake pedal of the vehicle; a driver-assistance control portion which is configured to start a driver assistance operation in response to a manual operation made by the operator, and which is configured, when the stopped state is kept by the brake control portion, to withhold start of the driver assistance operation; and a withhold cancel portion which is configured, when a returning operation of the brake pedal has been made by the operator, to cause the driver-assistance control portion to cancel withhold of the start of the driver assistance operation.Type: GrantFiled: September 11, 2018Date of Patent: January 19, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yusuke Nakade
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Patent number: 10883597Abstract: A vehicle control device includes a belt slippage determination unit which determines whether or not slippage of a belt has occurred based on rotation of a drive pulley and rotation of a driven pulley, an output state determination unit which determines an output state of a sensor that acquires a signal corresponding to the rotation of the driven pulley, and a speed of rotation limitation unit which controls an upper limit of the speed of rotation of the drive source based on the output state of the sensor when slippage of the belt is detected by the belt slippage determination unit.Type: GrantFiled: November 14, 2019Date of Patent: January 5, 2021Assignee: Honda Motor Co., Ltd.Inventors: Go Toshizane, Takeshi Kurata, Satoshi Kanazawa
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Patent number: 10883255Abstract: A traction force limiting device for a working machine with a continuously variable transmission that comprises a variator for adjusting the rotational speed ratio of the transmission independently of the torque ratio of the transmission. The traction force limiting device has a traction force interface for providing information to determine a traction force of the working machine, a limit value interface for setting a traction force limit value of the working machine and a control interface for emitting a control signal to the variator. Additionally, the traction force limiting device has a computer unit designed, on a basis of information provided via the traction force interface, to determine the traction force, to compare the traction force determined with the traction force limit value set via the limit value interface, and to control the variator in such manner that the traction force does not exceed the traction force limit value.Type: GrantFiled: November 7, 2018Date of Patent: January 5, 2021Assignee: ZF FRIEDRICHSHAFEN AGInventor: Jürgen Legner