Artificial Intelligence (e.g., Fuzzy Logic) Patents (Class 701/98)
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Patent number: 11964651Abstract: A traveling control apparatus for a vehicle includes a steering angle detector, a vehicle speed detector, and a cruise control unit. The cruise control unit includes a steering angle speed detector, a steering angle correction value setting unit, and a target acceleration rate setting unit. The steering angle correction value setting unit sets a steering angle correction value, on the basis of a speed of the vehicle detected by the vehicle speed detector and a steering angle speed calculated by the steering angle speed detector. The target acceleration rate setting unit sets a target acceleration rate of a cruise control, on the basis of a steering angle and the speed of the vehicle. The steering angle is based on an addition of the steering angle correction value set by the steering angle correction value setting unit to the steering angle absolute value detected by the steering angle detector.Type: GrantFiled: September 27, 2021Date of Patent: April 23, 2024Assignee: SUBARU CORPORATIONInventor: Yuki Kadoya
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Patent number: 11537127Abstract: Systems and methods for vehicle motion planning based on uncertainty are provided. A method can include obtaining scene data descriptive of one or more objects within a surrounding environment of the autonomous vehicle. The method can include determining one or more subproblems based at least in part on the scene data. In some implementation, each of the one or more subproblems can correspond to at least one object within the surrounding environment of the autonomous vehicle. The method can include generating one or more branching policies based at least in part on the one or more subproblems. In some implementations, each of the one or more branching policies can include scene data associated with the autonomous vehicle and one or more objects within the surrounding environment of the autonomous vehicle. The method can include determining one or more costs associated each of the one or more branching policies.Type: GrantFiled: December 13, 2019Date of Patent: December 27, 2022Assignee: UATC, LLCInventors: Eric Lloyd Wilkinson, Michael Lee Phillips, David Mcallister Bradley, Zakary Warren Littlefield, Aum Jadhav, Utku Eren, Samuel Philip Marden, Colin Jeffrey Green
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Patent number: 10783789Abstract: A lane change estimation device includes a detection unit that detects a surrounding situation of an own-vehicle, a first index value deriving unit that derives a first index value according to a traveling-direction-related relationship between each of a plurality of pairs of vehicles, each pair including two vehicles among the own-vehicle, a first vehicle traveling in front of the own-vehicle in a first lane in which the own-vehicle travels, a second vehicle traveling in front of the own-vehicle in a second lane adjacent to the first lane, and a third vehicle traveling behind the second vehicle in the second lane on the basis of the surrounding situation of the own-vehicle, and an estimation unit that estimates a probability of lane change of the third vehicle on the basis of the first index value derived and a lateral position of the third vehicle.Type: GrantFiled: February 22, 2018Date of Patent: September 22, 2020Assignee: HONDA MOTOR CO., LTD.Inventor: Akira Mizutani
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Patent number: 10367869Abstract: A plurality of data streams are received from a vehicle, at least one of the data streams including multimedia data. A prioritization of the data streams is performed according to one or more factors. At least one of adjusting at least one of the data streams and preventing transmission of at least one of the data streams according to the prioritization is performed.Type: GrantFiled: October 14, 2015Date of Patent: July 30, 2019Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Michael Robert Tinskey, Donna L. Bell, David McCreadie, Renuka Vikram Gokhale, Ghassan AlRegib, Tariq Alshawi, Mohammed Aabed, Berdinus Bras
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Patent number: 10308249Abstract: A vehicle and an adaptive cruise control system, ACC, is provided. The ACC system includes a control unit configured to control a steering angle of said vehicle in relation to detected road lanes and/or road markings. The ACC system further includes a steering wheel arranged to allow the provision of manual steering input to the steering system of the vehicle and a steering angle sensor. The steering system is configured to identify a steering wheel jerk, performed as a clockwise- and counter-clockwise actuation of the steering wheel within a predetermined time range and to steer the host vehicle from a first, current, road lane to a second road lane based on the identified jerk as indicated by the steering angle sensor.Type: GrantFiled: May 25, 2017Date of Patent: June 4, 2019Assignee: Volvo Car CorporationInventors: Magnus Brandin, Mohammad Ali
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Patent number: 8996276Abstract: When a stereo image recognition device detects a vehicle ahead, a driving support apparatus extracts the vehicle ahead as a vehicle against which control should be performed, and performs driving support control based upon the information from the stereo image recognition device. When the stereo image recognition device does not detect the vehicle ahead, the driving support apparatus sets either one of the distance from the driving lane on which the vehicle travels and a start point of a curve ahead according to the configuration of the road ahead and a detection limit distance of the information of the vehicle ahead by the stereo image recognition device (front recognition device) as a threshold value IVC_L. When the vehicle ahead is present distant by more than the threshold value IVC_L, the driving support apparatus performs driving support control based upon the information by the inter-vehicle communication from a communication device.Type: GrantFiled: October 5, 2010Date of Patent: March 31, 2015Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Atsuyoshi Takazawa, Norimasa Kaneko
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Patent number: 8892331Abstract: A drive assist system includes: wireless communication devices on first and second vehicles. The wireless communication device on the first vehicle includes: a distance calculation device for calculating a satellite positioning distance between the first and second vehicles; and a difference calculation device for calculating a distance difference between the satellite positioning distance and a distance to the second vehicle obtained by a ranging sensor in the first vehicle.Type: GrantFiled: June 20, 2012Date of Patent: November 18, 2014Assignee: Denso CorporationInventors: Seigou Kumabe, Takahisa Yamashiro
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Patent number: 8874334Abstract: A shift control system of a hybrid vehicle with an automatic transmission may include a fuzzy function calculator that receives an accel position sensor (APS) signal that may be an input variable, and outputs a severity value by determining a driver's driving severity value through a plurality of fuzzy rules including a fuzzy function for the APS signal, a sporty degree calculator that may be electrically connected with the fuzzy function calculator and determines a sporty degree corresponding to the severity value, and a mode determiner that may be electrically connected with the sporty degree calculator and determines whether an engine operates in accordance with the sporty degree.Type: GrantFiled: November 16, 2010Date of Patent: October 28, 2014Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Byeongwook Jeon, Heeyong Lee
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Publication number: 20140297135Abstract: The present invention relates to a method for driving a mining and/or construction machine, where said machine is arranged to be controlled by an operator by means of maneuvering means, where said operator, when driving said machine, provides steering commands by means of said maneuvering means for maneuvering said machine. The method comprises, when said machine is being driven in an environment having at least a first obstacle: when said machine is within a first distance from said first obstacle, estimate a first path that has been requested by said operator by means of said steering commands, by means of a control system, determining whether said machine when moving according to said requested first path will be driven within a second distance from said first obstacle, and when it is determined that said machine, when travelling according to said first path, will be driven within said second distance from said first obstacle, retard said machine by means of said control system.Type: ApplicationFiled: November 15, 2012Publication date: October 2, 2014Applicant: Atlas Copco Rock Drills ABInventor: Johan Larsson
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Patent number: 8818679Abstract: A vehicle control device for controlling the driving force and braking force that is applies to a vehicle to maintain a target wheel speed includes: a plurality of determination parts each of which determines the wheel speed of a corresponding one of a plurality of wheels of the vehicle; a calculation part that calculates the wheel speed validity threshold for each wheel based on the determined wheel speeds; a decision part that decides whether the wheel speed validity threshold calculated for each wheel is below a specific threshold speed; a setting part that resets the target wheel speed depending on the result of the decision by the decision part; and an estimation part that estimates the vehicle speed based on the determined wheel speeds.Type: GrantFiled: September 5, 2008Date of Patent: August 26, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Gen Inoue, Yasuhito Ishida
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Patent number: 8744720Abstract: The vehicle comprising a rear vehicle speed dependent ideal distance maintaining implementer, a front vehicle speed dependent ideal distance maintaining implementer, an inter-vehicle middle point maintaining implementer, a front vehicle activity notifying implementer, and a past accident occurred spot auto speed decreasing implementer.Type: GrantFiled: January 25, 2013Date of Patent: June 3, 2014Inventor: Iwao Fujisaki
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Patent number: 8744718Abstract: A method for controlling a vehicle's speed includes adopting a desired speed vset for the vehicle; determining by means of map data and location data a horizon for the intended itinerary which is made up of route segments with at least one characteristic for each segment; effecting the following during each of a number of simulation cycles (s) each comprising a number N of simulation steps conducted at a predetermined frequency f: making a first prediction of the vehicle's speed vpred—cc along the horizon with conventional cruise control when vset is presented as reference speed, which prediction depends on the characteristics of said segment; comparing the predicted vehicle speed vpred—cc with vmin and vmax, which demarcate a range within which the vehicle's speed is intended to be; making a second prediction of the vehicle's speed vpred—Tnew along the horizon when the vehicle's engine torque T is a value which depends on the result of said comparison in the latest preceding simulation cycle (s?1); determiniType: GrantFiled: June 21, 2011Date of Patent: June 3, 2014Assignee: Scania CV ABInventors: Oskar Johansson, Maria Södergren, Fredrik Roos
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Patent number: 8688349Abstract: When employing an a cruise control system in a commercial or heavy-duty vehicle, an adaptive cruise control (ACC) system (14) is activated upon activation of a vehicle or set-speed cruise control (SSCC) system (16). The ACC (14) remains on, even after SSCC shutoff, to maintain a minimum following distance for a primary vehicle in which the ACC (14) is employed and a forward vehicle. The ACC (14) is deactivated after detection of an ACC shutoff trigger event, which may be driver application of the brakes of the primary vehicle, driver-initiated acceleration for a predefined time period, expiration of a predetermined time period, manual shutoff (e.g., via a switch or button), etc.Type: GrantFiled: June 21, 2012Date of Patent: April 1, 2014Inventors: Kenneth A. Grolle, Thomas J. Thomas, William P. Amato, Robert J. Custer, Srikiran Kosanam
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Patent number: 8682554Abstract: A control device for controlling an engagement state of a lock-up clutch is provided. A plurality of target slip ratio maps include a normal slip ratio map having a characteristic line of a target slip ratio defined in accordance with an engine load at a normal vehicle running condition and a modified slip ratio map having a characteristic line of the target slip ratio to become a facing calorific value lower than a facing calorific value corresponding to the slip ratio retrieved from the normal slip ratio map. In the case where an estimate value of the facing temperature continues to exceed first threshold temperature for more than predetermined time when to carry out slip control using the normal slip ratio map, control to switch the target slip ratio map from the normal slip ratio map to the modified slip ratio map is carried out.Type: GrantFiled: June 9, 2010Date of Patent: March 25, 2014Assignee: Honda Motor Co., Ltd.Inventors: Masaaki Takamatsu, Yutaka Ishikawa, Shinya Abe
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Patent number: 8577534Abstract: A method and a device are described for scanning the surrounding environment of a vehicle. When the vehicle falls below a first boundary speed a timer is triggered whose state is incremented until the vehicle exceeds a boundary speed, a check of the unobstructed view of the scanning device being carried out upon expiration of the time period recorded by the state of the timer and in which the state of the counter is incremented.Type: GrantFiled: September 4, 2007Date of Patent: November 5, 2013Assignee: Robert Bosch GmbHInventors: Stephan Dorenkamp, Volker Brichzin, Ulrich Schirm, Maria-Eugenia Garcia Bordes
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Patent number: 8548709Abstract: A radar sensor detects a traveling state of a host vehicle. An inter-vehicle control ECU gives the amount of operation for the predetermined amount of control of the host vehicle so that the traveling state of the host vehicle detected by the radar sensor becomes a predetermined state. The amount of operation given by the inter-vehicle control ECU is reduced as a kind of restriction when the amount of operation given by the inter-vehicle control ECU becomes equal to or larger than a predetermined value. As a result, it is possible to reduce the dependence of the driver on the device.Type: GrantFiled: April 27, 2009Date of Patent: October 1, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Mitsuhiko Morita
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Publication number: 20130253797Abstract: A controller for predicting cruising speeds of a vehicle includes a processor and an extracting unit to extract feature data from segments of a prior trajectory of the vehicle, the feature data including cruising speeds of the vehicle and predictive feature data. The controller also includes a model generator to generate a probabilistic model associating the predictive feature data with the cruising speeds of the vehicle and a predicting unit to predict a cruising speed of the vehicle for a target segment, which is an upcoming cruising segment of the vehicle, by conditioning the probabilistic model on real-time predictive feature data of segments of a current trajectory.Type: ApplicationFiled: March 20, 2012Publication date: September 26, 2013Applicant: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC. (TEMA)Inventor: John Michael MCNEW
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Patent number: 8498796Abstract: A speed control method of a vehicle including the steps of obtaining a steering angle, a velocity error and a distance error. The velocity and the distance error being determined by mathematical combinations of a GPS position, a required path and speed set points. The steering angle, velocity errors and distance error are applied to fuzzy logic membership functions to produce an output that is applied to a velocity rule base. An output from the velocity rule base is defuzzified to produce a speed signal.Type: GrantFiled: February 12, 2007Date of Patent: July 30, 2013Assignee: Deere & CompanyInventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Patent number: 8380420Abstract: Precise operation of an accelerator operating member (7) is more difficult to perform in a reversing operation of a vehicle (1) as compared with an advancing operation. Therefore, behavior of the vehicle (1) is not smooth and thus tends to be unnatural. In the reversing operation of the vehicle (1), driving force output from an internal combustion engine (2) is limited in accordance with vehicle acceleration (D). At this time, it is possible to regulate the driving force of the vehicle (1) in conformity to the actual operation of the accelerator operating member (7) by the driver. In addition, limitation of the driving force is not executed in the advancing operation of the vehicle (1). At this time, the vehicle (1) can be driven in a state in which the driving force is comparatively small. Therefore, it is possible to prevent the behavior of the vehicle (1) from being unnatural.Type: GrantFiled: July 1, 2011Date of Patent: February 19, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masashi Takagi, Motonari Ohbayashi, Yuki Minase, Shinya Kodama, Toshihiro Takagi
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Patent number: 8374743Abstract: A vehicle system for providing an interface for driver control of at least a partially autonomous vehicle. The system includes a driver command processor that receives request signals from a driver interface device of the driver's desire for the vehicle system to take certain actions and sends appropriate signals in response thereto to the proper autonomous vehicle systems. The driver command processor also sends signal to a display device indicating available actions, acknowledgement of the driver request, status of actions being taken or to be taken, etc.Type: GrantFiled: May 1, 2009Date of Patent: February 12, 2013Assignee: GM Global Technology Operations LLCInventor: Jeremy A. Salinger
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Publication number: 20130035837Abstract: A module for determining speed set-point values Vref for a vehicle's control system that includes a mode choice unit for setting of a driving mode from among at least two selectable driving modes each comprising a unique set of settings which affect the calculation of Vref; a horizon unit adapted to determining a horizon from location data received and map data for an itinerary made up of route segments and at least one characteristic for each segment; and a processor unit adapted to calculating Vref for the vehicle's control system along the horizon on the basis of settings for chosen driving modes and rules pertaining to categories in which segments within the horizon have been placed, so that Vref is within a range bounded by Vmin and Vmax.Type: ApplicationFiled: March 30, 2011Publication date: February 7, 2013Inventors: Oskar Johansson, Jörgen Hansson, Maria Södergren, Henrik Pettersson
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Patent number: 8346456Abstract: In a method for controlling the driving speed of a vehicle that has a speed control device into which a set speed can be entered as driver command, a reference variable of the speed control device is varied within a specified or specifiable speed range of the set speed, based on an evaluation of a section of the road ahead of the driver and maintaining a minimum fuel usage in a first operating mode of the speed control device.Type: GrantFiled: June 10, 2009Date of Patent: January 1, 2013Assignee: Daimler AGInventors: Mario Aleksic, Mike Benowitz, Bernd Martin, Joseph Michalek, Thomas Passegger
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Publication number: 20120245775Abstract: A vehicle powertrain controller includes a fuzzy logic-based adaptive algorithm with a learning capability that estimates a driver's long term driving preferences. An adaptive algorithm arbitrates competing requirements for good fuel economy, avoidance of intrusiveness and vehicle drivability. A driver's acceptance or rejection of advisory information may be used to adapt subsequent advisory information to the driving style. Vehicle performance is maintained in accordance with a driver's driving style.Type: ApplicationFiled: May 21, 2012Publication date: September 27, 2012Applicant: Ford Global Technologies, LLCInventors: Fazal Urrahman Syed, Dimitar Petrov Filev, Fling Tseng
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Patent number: 8260484Abstract: To perform updating of maximum values and minimum values of measurement data with a simple procedure without incurring an increase in the computational load of an arithmetic processing element such as a microcomputer. When processing is started, a most recent maximum value stored in a nonvolatile storage element is written to a maximum value-use variable Xmax and a positive maximum value is written to a minimum value-use variable Xmin. Each time temperature data is acquired, a value of acquired data Xk and a most recent minimum value Xmin are compared and the smaller value is set as a new minimum value Xmin. Each time updating of this minimum value is repeated a predetermined number of times of processing Ns, the minimum value Xmin at that point in time and the maximum value Xmax are compared and the larger value is set as a new maximum value Xmax.Type: GrantFiled: August 6, 2008Date of Patent: September 4, 2012Assignee: Bosch CorporationInventor: Hiroshi Yoshikawa
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Patent number: 8237386Abstract: Methods and apparatuses to manage working states of a data processing system. At least one embodiment of the present invention includes a data processing system with one or more sensors (e.g., physical sensors such as tachometer and thermistors, and logical sensors such as CPU load) for fine grain control of one or more components (e.g., processor, fan, hard drive, optical drive) of the system for working conditions that balance various goals (e.g., user preferences, performance, power consumption, thermal constraints, acoustic noise). In one example, the clock frequency and core voltage for a processor are actively managed to balance performance and power consumption (heat generation) without a significant latency. In one example, the speed of a cooling fan is actively managed to balance cooling effort and noise (and/or power consumption).Type: GrantFiled: November 7, 2008Date of Patent: August 7, 2012Assignee: Apple Inc.Inventors: Michael Culbert, Keith Alan Cox, Brian Howard, Josh de Cesare, Richard Charles Williams, Dave Robbins Falkenburg, Daisie Iris Huang, Dave Radcliffe
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Patent number: 8229643Abstract: An acceleration control system stores a target acceleration calculation equation acquired by transforming an equation that expresses that a product of the differentiation of the square power of the speed and the environmental factor ?env represents a sensed value ? of acceleration. A surrounding environment monitor device detects surrounding bodies present in the forward periphery of the vehicle, and an environmental factor calculation unit calculates the environmental factor ?env by using the detected positions of the surrounding bodies. A target acceleration setting unit successively sets target accelerations aref in compliance with the target acceleration calculation equation by using the environmental factor ?env. The acceleration is executed to match the driver's feeling.Type: GrantFiled: October 27, 2010Date of Patent: July 24, 2012Assignee: Denso CorporationInventors: Hiroshi Inou, Minoru Okada, Takehito Fujii, Seiji Totsuka
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Patent number: 8036803Abstract: Adaptive cruise control (ACC) system for motor vehicles is provided, the ACC system having a sensor system for acquiring data concerning a target object and the own (host) vehicle, an actuator system for controlling the longitudinal movement of the vehicle, and a controller that intervenes in the actuator system within certain intervention limits in order to maintain a defined, controlled target distance from the target object, and an output device for issuing a take-over request to the driver if the controlled target distance cannot be maintained. The ACC system further includes a prediction system for predicting a conflict situation in which the controlled target distance cannot be maintained, in which case the take-over request is initiated before the conflict situation actually occurs.Type: GrantFiled: December 9, 2004Date of Patent: October 11, 2011Assignee: Robert Bosch GmbHInventors: Harald Michi, Goetz Braeuchle, Holger Hofmann
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Patent number: 7987034Abstract: The invention concerns a method for controlling automatic transmission (3) of a vehicle comprising an engine (2) driving the transmission (3) which consists in: detecting a downhill situation of the vehicle, and selecting a transmission ratio so that the engine absorbs energy, storing a longitudinal speed of downhill start (Vmin) when the vehicle starts going downhill, and while the vehicle is running downhill, comparing the current speed (V) of the vehicle with the downhill start speed (Vmin) such that the current speed (V) exceeds the downhill start speed (Vmin) by a predetermined difference (VS), then controlling the transmission to trigger downshifting.Type: GrantFiled: November 18, 2003Date of Patent: July 26, 2011Assignee: Renault S.A.S.Inventor: Christian Taffin
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Patent number: 7895135Abstract: A human perception model for a speed control method obtains a steering angle, a velocity error and a distance error. The steering angle and a measure of operator aggressiveness are applied to the model. The output is defuzzified. The steering angle, the velocity error and the distance error are applied to fuzzy logic membership functions to produce an output that is applied to a velocity rule base. The measure of operator aggressiveness is input to the velocity rule base. The output from the velocity rule base is defuzzified to produce a speed signal.Type: GrantFiled: February 12, 2007Date of Patent: February 22, 2011Assignee: Deere & CompanyInventors: William Robert Norris, Bernard Edwin Rornig, John Franklin Reid, Brian Joseph Gilmore
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Publication number: 20100318273Abstract: In a method for controlling the driving speed of a vehicle that has a speed control device into which a set speed can be entered as driver command, a reference variable of the speed control device is varied within a specified or specifiable speed range of the set speed, based on an evaluation of a section of the road ahead of the driver and maintaining a minimum fuel usage in a first operating mode of the speed control device.Type: ApplicationFiled: June 10, 2009Publication date: December 16, 2010Applicant: Daimler AGInventors: Mario Aleksic, Mike Benowitz, Bernd Martin, Joseph Michalek, Thomas Passegger
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Patent number: 7853390Abstract: An acceleration control system stores a target acceleration calculation equation acquired by transforming an equation that expresses that a product of the differentiation of the square power of the speed and the environmental factor ?env represents a sensed value ? of acceleration. A surrounding environment monitor device detects surrounding bodies present in the forward periphery of the vehicle, and an environmental factor calculation unit calculates the environmental factor ?env by using the detected positions of the surrounding bodies. A target acceleration setting unit successively sets target accelerations aref in compliance with the target acceleration calculation equation by using the environmental factor ?env. The acceleration is executed to match the driver's feeling.Type: GrantFiled: June 24, 2008Date of Patent: December 14, 2010Assignee: Denso CorporationInventors: Hiroshi Inou, Minoru Okada, Takehito Fujii, Seiji Totsuka
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Patent number: 7848884Abstract: A collision prediction ECU of a collision prediction apparatus estimates a state of presence of a detected front obstacle. At this time, the collision prediction ECU estimates the state of presence on the basis of road shape data supplied from a navigation ECU of a navigation apparatus. Further, the collision prediction ECU checks and corrects the calculated road gradient value. At this time, the collision prediction ECU corrects the gradient value on the basis of road gradient data supplied from the navigation ECU. Further, the collision prediction ECU changes a collision avoidance time on the basis of travel environment data supplied from the navigation ECU. Moreover, the collision prediction ECU obtains an ETC gate pass-through signal from the navigation ECU and determines whether the vehicle is passing through the gate. The collision prediction apparatus performs collation prediction on the basis of the corrected values.Type: GrantFiled: May 28, 2004Date of Patent: December 7, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Tomoya Kawasaki
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Patent number: 7689342Abstract: The compaction vehicle having a speed adjustment member, a displacement detector, and a drive source controller further includes a calculation device between the displacement detector and the drive source controller, receiving the displacement S, and outputting a signal I calculated to the controller; a running speed setting switch for the operator operating ON at a desired running speed; a control signal memory device provided inside the calculation device and memorizing a signal I1 to the controller, wherein in a normal operation the calculation device outputs the signal I to the controller so that a running speed increases or decreases according to the displacement S, and wherein when the switch is operated to ON, the calculation device maintains the ON state, and the displacement S is not less than a predetermined value, the calculation device outputs the signal I1 memorized in the memory device so as to run the vehicle at a constant speed.Type: GrantFiled: August 4, 2006Date of Patent: March 30, 2010Assignee: Sakai Heavy Industries Ltd.Inventors: Sadayoshi Suzuki, Isamu Miyamoto, Shinnosuke Tanaka
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Patent number: 7663637Abstract: Embodiments of the invention provide techniques for overriding layer display properties in computer-aided design (CAD) viewports. A method of generating a display representation of a CAD drawing includes identifying one or more layers of the CAD drawing to include in the display representation. Each of the one or more layers may be associated with a set of drawing elements and a set of layer display properties. The method also includes identifying a viewport display property for a first layer of the one or more layers and generating the display representation. The display representation may include the drawing elements associated with the one or more layers, and the appearance of the drawing elements associated with the first layer is based on the viewport display property.Type: GrantFiled: January 31, 2007Date of Patent: February 16, 2010Assignee: AUTODESK, Inc.Inventors: Karen Elaine Mason, Qun Lu, Thomas Allen Stoeckel, Jr., Stewart A. Sabadell, Jose Madeira de Freitas Garcia, John G. Ford, III
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Patent number: 7664589Abstract: An apparatus and method for controlling a vehicle to follow a preceding vehicle. A stop-holding device maintains a stopped state automatically when the vehicle is stopped, and the stop-holding device is in an enabled state or a disabled state. A control state for following the preceding vehicle is changed, at least in part, according to a set state of the stop-holding device.Type: GrantFiled: May 19, 2006Date of Patent: February 16, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Nariaki Etori, Takashi Sugano
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Publication number: 20090069997Abstract: A vehicle control device for controlling the driving force and braking force that is applies to a vehicle to maintain a target wheel speed includes: a plurality of determination parts each of which determines the wheel speed of a corresponding one of a plurality of wheels of the vehicle; a calculation part that calculates the wheel speed validity threshold for each wheel based on the determined wheel speeds; a decision part that decides whether the wheel speed validity threshold calculated for each wheel is below a specific threshold speed; a setting part that resets the target wheel speed depending on the result of the decision by the decision part; and an estimation part that estimates the vehicle speed based on the determined wheel speeds.Type: ApplicationFiled: September 5, 2008Publication date: March 12, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Gen Inoue, Yasuhito Ishida
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Publication number: 20090030574Abstract: To provide a vehicle motion control system capable of defining clear guidelines on more specific control timing associated with accelerating, steering, and braking operations, and conducting motion control based on the defined guidelines. An ideal motion control unit 42 within a central controller 40 uses longitudinal jerk information of a vehicle to control the steering of the vehicle. Information for determining the initiation timing of steering is presented from a human-vehicle interface (HVI) 55 to a driver. In accordance with the information presented from the HVI 55, the driver controls the initiation timing of steering.Type: ApplicationFiled: July 26, 2007Publication date: January 29, 2009Applicant: Hitachi, Ltd.Inventors: Makoto Yamakado, Atsushi Yokoyama, Masato Abe
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Publication number: 20080300766Abstract: In a cruise control system for a vehicle, a cruise ECU calculates a cornering resistance applied to the vehicle based upon a steering angle, when a vehicle turns. The cruise ECU calculates a speed reduction amount as a correction vehicle speed based upon the cornering resistance. The cruise ECU subtracts the correction vehicle speed from a set vehicle speed to set a target vehicle speed so that the vehicle speed becomes lower as the cornering resistance is larger. The cruise ECU controls the vehicle speed to be within a permissible speed range of the target vehicle speed.Type: ApplicationFiled: May 27, 2008Publication date: December 4, 2008Applicants: DENSO CORPORATION, Advics Co., Ltd.Inventors: Hajime Kumabe, Yasuhiro Nakai, Satoshi Niwa, Shotaro Fukuda, Masayoshi Takeda, Hiroyuki Kodama
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METHOD FOR CONTROLLING THE DESIRED SPEED IN AN OVERRUN CONDITION FOR A VEHICLE COMPRISING A RETARDER
Publication number: 20080262693Abstract: A method for controlling the desired speed in overrun condition for a vehicle comprising a retarder is proposed, such that the desired speed is controlled by a continuously adjustable retarder braking and/or engine braking control system.Type: ApplicationFiled: March 31, 2008Publication date: October 23, 2008Applicant: ZF Friedrichschafen AGInventors: Hugo BURKHART, Bernd Aumann -
Publication number: 20080195293Abstract: A speed control method of a vehicle including the steps of obtaining a steering angle, a velocity error and a distance error. The velocity and the distance error being determined by mathematical combinations of a GPS position, a required path and speed set points. The steering angle, velocity errors and distance error are applied to fuzzy logic membership functions to produce an output that is applied to a velocity rule base. An output from the velocity rule base is defuzzified to produce a speed signal.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: William Robert Norris, Bernard Edwin Romig, John Franklin Reid
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Publication number: 20080195569Abstract: A human perception model for a speed control method including the steps of obtaining a steering angle, a velocity error and a distance error. The method further includes the steps of applying the steering angle, inputting a measure of operator aggressiveness and defuzzifying an output. The applying step includes applying the steering angle, the velocity error and the distance error to fuzzy logic membership functions to produce an output that is applied to a velocity rule base. The inputting step inputs a measure of operator aggressiveness to the velocity rule base. The defuzzifying step defuzzifies an output from the velocity rule base to produce a speed signal.Type: ApplicationFiled: February 12, 2007Publication date: August 14, 2008Inventors: William Robert Norris, Bernard Edwin Rornig, John Franklin Reid, Brian Joseph Gilmore
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Patent number: 7359770Abstract: The present invention is directed to a system and method for optimizing the dynamics and energy usage of long vehicles such as freight trains by determining their operating conditions and calculating an optimal sequence of power and braking control actions. The sequence calculated provides for optimal vehicle dynamic behaviour with minimum energy usage in accordance with the train type, track topography and train operation rules and policies. The method and system serves as a management tool for the driver and reference signals for a train cruise control or autopilot system.Type: GrantFiled: May 7, 2004Date of Patent: April 15, 2008Assignees: Central Queensland University, Queensland RailwaysInventor: Colin Cole
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Patent number: 7178819Abstract: A speed regulator for motor vehicles, including a standard mode in which the speed is regulated to a desired speed set by the driver, and at least one exception mode in which the speed is regulated to a setpoint speed that may deviate from the desired speed, and a display device for displaying the desired speed. An auxiliary display is also provided that indicates that an exception mode is active.Type: GrantFiled: September 17, 2002Date of Patent: February 20, 2007Assignee: Robert Bosch GmbHInventors: Michael Scherl, Werner Uhler
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Patent number: 7110988Abstract: A method of aligning a new goal of an entity ensures that the new goal is a child goal of a parent goal. The method also ensures that a group is linked to the parent goal, and ensures that the entity is subordinate to the group. In one embodiment, selection lists constrain the available values for the group and/or the parent goal. In another aspect, a method of facilitating contextual alignment of a new goal recognizes an organizational role for an entity and customizes content of a user interface, based on the organizational role of the entity. The user interface with the customized content provides goal creation guidance according to the organizational role. In one embodiment, the customized content includes specialized instructions and sample content for characteristics of the new goal, such as a goal-objective characteristic, a goal-measure characteristic, and a goal-activity characteristic.Type: GrantFiled: August 1, 2001Date of Patent: September 19, 2006Assignee: Trilogy Development Group, Inc.Inventors: Andrew W. Allemann, Shad W. Reynolds, Adam R. Hunter, Justin B. Petro
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Patent number: 7103466Abstract: A method and an apparatus for predicting intake manifold pressure are presented, to compensate for a large lag or a large time delay without producing an overshot or discontinuous behaviors of a predicted value. The method comprises the step of obtaining a difference of values of a variable to be predicted and a difference of values of another variable ahead of the variable to be predicted. The method further comprises the step of filtering the differences with adaptive filters. The method further comprises the step of obtaining a predicted difference of values of the variable to be predicted, through algorithm of estimation with fuzzy reasoning. The method further comprises the step of adding the predicted difference of values of the variable to be predicted, to a current value of the variable to be predicted, to obtain a predicted value of the variable to be predicted.Type: GrantFiled: October 29, 2003Date of Patent: September 5, 2006Assignee: Honda Motor Co., Ltd.Inventors: Yuji Yasui, Akihiro Shinjo, Michihiko Matsumoto
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Patent number: 6904357Abstract: A method and an arrangement control the output quantity (NMOTACT) of a drive unit (1) of a vehicle. The method and arrangement make possible a time-optimal control strategy especially during a shift operation of the vehicle. The output quantity (NMOTACT) is adjusted with the aid of an adjusting quantity (MDES) and tracks an input value (NMOTDES). In at least one pregiven operating state of the vehicle, the actuating quantity (NMOTDES) is brought to a pregiven limit value (MO, MU) when a pregiven control deviation (dnv) of the output quantity (NMOTACT) is exceeded.Type: GrantFiled: July 9, 2003Date of Patent: June 7, 2005Assignee: Robert Bosch GmbHInventors: Dirk Hartmann, Holger Jessen, Mathieu Courtes
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Patent number: 6836719Abstract: A method and system for controlling a vehicle includes receiving vehicle position information from a positioning system and combining the position information with information from a map database and a driver behavior model to control the vehicle's speed and braking for not only the current roadway the vehicle is operating on but also on upcoming road sections.Type: GrantFiled: October 15, 2002Date of Patent: December 28, 2004Assignee: Ford Motor CompanyInventors: Hans Andersson, Martin Apelryd
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Patent number: 6772055Abstract: The invention concerns a system for generating basis for decisions concerning the behavior of a vehicle and/or of a driver of a vehicle. The system comprises a supervising unit (10) which comprises at least one storage member (12). In the storage member (12) there is a set of rules (14) of a particular kind for how the driver of the vehicle and/or the vehicle shall behave in different situations. The system also comprises a user interface (16) and adaptation means (13) arranged to adapt said set of rules such that at least some of the rules (14) with conclusions (24) belonging thereto are suited to form the basis for decisions concerning the behavior of a vehicle and/or of a driver of a vehicle. The invention also concerns a vehicle and a method of generating basis for decisions concerning the behavior of a vehicle and/or of a driver of a vehicle.Type: GrantFiled: July 2, 2002Date of Patent: August 3, 2004Assignee: Saab ABInventor: Hans-Ove Hagelin
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Patent number: 6721680Abstract: A method is provided for promoting compliance by a vehicle operator with a payload standard for a vehicle. The payload weight of the vehicle is determined. The payload weight is compared with the payload standard to determine if the payload weight is compliant with the payload standard. The operation of the vehicle is then limited if the payload weight is not in compliance.Type: GrantFiled: December 21, 2001Date of Patent: April 13, 2004Assignee: Caterpillar IncInventors: Giles Kent Sorrells, Dennis A. Barney
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Patent number: RE42546Abstract: The present inventions comprise a A method of estimating a minimum range for a target with respect to a first point of interest, independent of actual, range to the target, comprising obtaining three bearing data points; using the three bearing data points to determine a speed contribution Vos cos (??) of a first point of interest to a distance from a relative velocity vector over a time frame comprising t0 to t0?; determining an angle ?? as defined by the bearing relative to ownship's heading at the point in time of closest approach to a second point of interest; and calculating a minimum range using a predetermined formula.Type: GrantFiled: December 22, 2005Date of Patent: July 12, 2011Assignee: Nevada Asset Liquidators, LLCInventors: Jeffrey Bulow, Douglas M. Peters