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公开(公告)号：US11993243B2
公开(公告)日：2024-05-28
申请号：US18465257
申请日：2023-09-12
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Atsushi Kawamata
IPC: B60W10/119 , B60W10/12 , B60W10/184 , B60W10/02
CPC classification number: B60W10/119 , B60W10/12 , B60W10/184 , B60W10/024 , B60W2510/1005 , B60W2520/06 , B60W2520/10
Abstract: A control apparatus for an all-wheel drive vehicle that includes (i) a power source, (ii) a power distribution device for distributing a power from the power source to front and rear wheels, (iii) a differential limiting mechanism for placing the power distribution device in a differential limiting state in which a rotational difference between the front wheels and the rear wheels is limited, and (iv) a braking device for applying a wheel braking torque to each of the front and rear wheels. When the power distribution device is placed in the differential limiting state and the wheel braking torque is applied to each of the front wheels and the rear wheels, a torque limiting control is executed for setting an upper limit value of a torque of the power source to a smaller value when the wheel braking torque is large than when the wheel braking torque is small.
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2.发明公开公开(公告)号：US20230166710A1
公开(公告)日：2023-06-01
申请号：US17562169
申请日：2021-12-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Norman K. Bucknor , Chunhao J. Lee , Dongxu Li , Lei Hao , Chengwu Duan
CPC classification number: B60W50/06 , B60W10/08 , B60W10/024 , F16H45/02 , B60W2520/04 , B60W2520/105 , B60W2540/10 , B60W2710/024 , B60W2710/081 , B60W2710/083 , F16H2045/0215
Abstract: A method for controlling an electric drive unit (EDU) having a motor-driven torque converter includes receiving a request signal indicative of a requested output torque of the EDU, and operating the motor at a target motor speed using the requested output torque. The target motor speed minimizes system losses while achieving the requested output torque. When the requested output torque remains below a calibrated threshold and a turbine speed is less than a corner speed of the motor, a torque converter clutch (TCC) transitions to or remains in a locked state. The controller commands the TCC to transition to an unlocked state to reach the target motor speed, thereby selectively enabling torque multiplication. A powertrain system includes a driven load and the EDU. A computer readable storage medium may include executable instructions for performing the method.
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公开(公告)号：US20240359680A1
公开(公告)日：2024-10-31
申请号：US18636798
申请日：2024-04-16
Applicant: Mazda Motor Corporation
Inventor： Yuki Tsuchitori , Manabu Sasahara , Shigeyoshi Okunishi , Hiroki Hanae
CPC classification number: B60W20/10 , B60W10/024 , B60W10/06 , B60W10/08 , B60W30/146 , B60W10/02 , B60W30/18027 , B60W30/18063 , B60W2552/15 , B60W2710/021 , B60W2710/023
Abstract: A control system of a vehicle includes a driving source configured to generate a driving force of the vehicle and transmit the driving force to driving wheels, without intervention of a torque converter, a transmission provided between the driving source and the driving wheels, a friction engagement element used for starting the vehicle, the friction engagement element being provided between the driving source and the driving wheels so as to be engageable and disengageable, and a controller configured to control an engaging force of the friction engagement element to adjust the driving force transmitted from the driving source to the driving wheels. The controller sets a target acceleration of the vehicle based on a rotational speed difference between an input rotational speed and an output rotational speed of the transmission, and controls the engaging force based on the target acceleration.
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公开(公告)号：US20240140391A1
公开(公告)日：2024-05-02
申请号：US18465257
申请日：2023-09-12
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Atsushi KAWAMATA
IPC: B60W10/119 , B60W10/12 , B60W10/184
CPC classification number: B60W10/119 , B60W10/12 , B60W10/184 , B60W10/024 , B60W2510/1005 , B60W2520/06 , B60W2520/10
Abstract: A control apparatus for an all-wheel drive vehicle that includes (i) a power source, (ii) a power distribution device for distributing a power from the power source to front and rear wheels, (iii) a differential limiting mechanism for placing the power distribution device in a differential limiting state in which a rotational difference between the front wheels and the rear wheels is limited, and (iv) a braking device for applying a wheel braking torque to each of the front and rear wheels. When the power distribution device is placed in the differential limiting state and the wheel braking torque is applied to each of the front wheels and the rear wheels, a torque limiting control is executed for setting an upper limit value of a torque of the power source to a smaller value when the wheel braking torque is large than when the wheel braking torque is small.
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5.发明公开公开(公告)号：US20240246526A1
公开(公告)日：2024-07-25
申请号：US18408757
申请日：2024-01-10
Applicant: Volvo Car Corporation
Inventor： Luiz Filipe Silva PEREIRA
CPC classification number: B60W10/08 , B60W10/024 , B60W2710/083
Abstract: The disclosure relates to a transmission system for a vehicle comprising a first gear assembly, a second gear assembly, an intermediate unit comprising a first sprocket element, a second sprocket element, a coupling element, and an output gear assembly with an output shaft. The first sprocket element is connectable to an input shaft of a traction motor of the vehicle in an axial direction of the first sprocket element to receive an input torque and the first gear assembly is connectable to the second sprocket element coaxially to convert the input torque to a first output torque. The second sprocket element is arranged radially to the first sprocket element and in communication with the first sprocket element through the coupling element to receive the input torque and the second gear assembly is connectable to the first sprocket element coaxially to convert the input torque to a second output torque.
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Patent Agency Ranking
公开(公告)号：US11780421B2
公开(公告)日：2023-10-10
申请号：US17562169
申请日：2021-12-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Norman K. Bucknor , Chunhao J. Lee , Dongxu Li , Lei Hao , Chengwu Duan
CPC classification number: B60W10/026 , B60W10/024 , B60W10/08 , B60W50/06 , F16H45/02 , B60W30/18027 , B60W2510/083 , B60W2510/1015 , B60W2520/04 , B60W2520/105 , B60W2540/10 , B60W2710/024 , B60W2710/081 , B60W2710/083 , F16H2045/0215
Abstract: A method for controlling an electric drive unit (EDU) having a motor-driven torque converter includes receiving a request signal indicative of a requested output torque of the EDU, and operating the motor at a target motor speed using the requested output torque. The target motor speed minimizes system losses while achieving the requested output torque. When the requested output torque remains below a calibrated threshold and a turbine speed is less than a corner speed of the motor, a torque converter clutch (TCC) transitions to or remains in a locked state. The controller commands the TCC to transition to an unlocked state to reach the target motor speed, thereby selectively enabling torque multiplication. A powertrain system includes a driven load and the EDU. A computer readable storage medium may include executable instructions for performing the method.
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公开(公告)号：US20240286598A1
公开(公告)日：2024-08-29
申请号：US18372563
申请日：2023-09-25
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Hyun Jin Park , Seo Ho Lee , Jae Young Choi , Kwon Chae Chung
CPC classification number: B60W10/024 , B60W10/08 , B60W2510/0208 , B60W2510/1075
Abstract: In a hybrid electric vehicle and a touchpoint learning method therefor, while a motor is driven, an engagement oil pressure of an engine clutch is adjusted step-by-step, to learn a touchpoint, thereby reducing touchpoint learning time and improving learning accuracy. The touchpoint learning method may include: determining whether a touchpoint learning entry condition previously set is satisfied or not; controlling a first motor connected to one end of an engine clutch to be in a stopped state when the learning entry condition is satisfied; maintaining a second motor connected to the other end of the engine clutch at a preset speed; changing an engagement oil pressure of the engine clutch step-by-step; and learning a touchpoint of the engine clutch based on a torque change of the second motor.
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公开(公告)号：US12017632B1
公开(公告)日：2024-06-25
申请号：US18235325
申请日：2023-08-17
Applicant: TORC Robotics, Inc.
Inventor： Rikki Valverde , Lorenzo Tarsitano
CPC classification number: B60W10/024 , B60W50/0097 , B60W60/00274 , B60W2510/0275 , B60W2554/20 , B60W2554/4045 , B60W2555/60 , B60W2556/10
Abstract: A method may include monitoring, by a processor associated with an autonomous vehicle, a status of a traffic light. The method may include monitoring, by the processor, a movement status of at least one vehicle within a same lane as the autonomous vehicle, the at least one vehicle having a stationary position in relation to the traffic light. The method may include executing, by the processor, a computer model to predict a change of movement status for the at least one vehicle in accordance with the status of the traffic light. The method may include in response to the computer model predicting a change of movement status for the at least one vehicle from the stationary position to a moving status, instructing, by the processor, the autonomous vehicle to increase a torque value of the autonomous vehicle at a predetermined time before the change of the movement status.
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公开(公告)号：US20240190436A1
公开(公告)日：2024-06-13
申请号：US18483616
申请日：2023-10-10
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Akihito HAYASAKA , Seiji MASUNAGA , Masayuki MATSUI
IPC: B60W30/18 , B60K6/52 , B60K17/346 , B60K17/356 , B60W10/02 , B60W10/08 , B60W10/10 , B60W10/14 , B60W20/15 , B60W30/182 , F16H63/46 , F16H63/50
CPC classification number: B60W30/18063 , B60K6/52 , B60K17/3462 , B60K17/356 , B60W10/024 , B60W10/08 , B60W10/10 , B60W10/14 , B60W20/15 , B60W30/182 , F16H63/46 , F16H63/50 , B60K6/48 , B60W2510/1005 , B60W2710/02 , B60W2710/083 , B60Y2200/92 , F16H2312/06
Abstract: A control apparatus for an electric vehicle that includes (i) an electric motor, (ii) a high-low switching device configured to establish a high gear position or a low gear position, (iii) a center differential configured to transmit rotation outputted from the high-low switching device, to the front and rear wheels, while allowing differential rotation between the front and rear wheels, and (iv) a high-low selection device configured to select the high gear position or low gear position that is to be established in the high-low switching device. The control apparatus includes a creep control portion configured to execute a creep control for generating a creep torque during stop of the vehicle. The creep control portion executes a creep cut for stopping the creep control under a predetermined constant condition, and stops the execution of the creep cut when the low gear position is selected during execution of the creep cut.
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公开(公告)号：US20240166188A1
公开(公告)日：2024-05-23
申请号：US17779495
申请日：2020-09-21
Applicant: CUMMINS INC.
Inventor： Martin T. Books , Jack SCHNEIDER , Jaime A. LUGO-CASTILLO , Odaro OMUSI , Richard A. BOOTH , Quresh SUTARWALA
IPC: B60W10/02 , B60W10/08 , B60W10/18 , B60W30/188 , B60W50/00
CPC classification number: B60W10/024 , B60W10/08 , B60W10/18 , B60W30/1886 , B60W2050/0024 , B60W2510/083 , B60W2720/24
Abstract: A method of reducing rollback of a electric vehicle, including determining a position baseline of the electric vehicle; determining a position compensated speed of the electric vehicle based on the position baseline; determining a hold torque as a function of the position compensated speed; and generating a command to apply the hold torque to the motor-generator of the electric vehicle.
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