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公开(公告)号：US20240042870A1
公开(公告)日：2024-02-08
申请号：US18282480
申请日：2021-03-19
Applicant: Cummins Inc.
Inventor： Jaime Antonio Lugo-Castillo , Jack Schneider , Sashwat Mahapatra
CPC classification number: B60L15/2018 , G01G19/03 , B60L2240/12 , B60L2240/642 , B60L2240/16
Abstract: A method of controlling torque of an electric vehicle, including sensing a surface grade; determining an acceleration of the vehicle; determining an initial torque of the vehicle; estimating a weight of the vehicle based the surface grade, the acceleration, and the initial torque; converting the weight of the vehicle to a weight factor; and determining an output torque by applying the weight factor to the initial torque.
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Patent Agency Ranking
公开(公告)号：US20230264693A1
公开(公告)日：2023-08-24
申请号：US18112067
申请日：2023-02-21
Applicant: Cummins Inc.
Inventor： Jaime Antonio Lugo-Castillo , Sathya Narayanan Hariharan , Yuanchun Cai , Balan Mariappan Selvaraj , Richard A. Booth
CPC classification number: B60W30/18127 , B60W10/10 , B60W2520/10 , B60W2510/1035 , B60W2710/105 , B60W2720/106
Abstract: A control system for controlling a powertrain of an electric or hybrid electric vehicle is disclosed. The powertrain comprises a battery and a traction motor and is operable in a regenerative braking mode. The control system is configured to generate a deceleration target for the vehicle in the regenerative braking mode, and to generate a torque command for the traction motor based on the deceleration target. By generating a deceleration target for the vehicle during regenerative braking and using the deceleration target to control the torque of the traction motor, more consistent regenerative braking may be provided, particularly when the vehicle is used to carry different loads.
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3.发明公开公开(公告)号：US20230331203A1
公开(公告)日：2023-10-19
申请号：US18214605
申请日：2023-06-27
Applicant: Cummins Inc.
Inventor： Jaime Antonio Lugo-Castillo , Martin T. Books , Richard A. Booth
CPC classification number: B60T8/17636 , B60W10/06 , B60W10/08 , B60W10/18 , B60W20/10 , B60W30/02 , B60W2555/20 , B60T2210/30 , B60T2210/36 , B60T2250/04 , B60T2270/10 , B60T2270/602 , B60T2270/604
Abstract: Methods and systems for operating a vehicle on a reduced traction surface are disclosed. A controller of the vehicle obtains at least one of: ambient information or GPS information, determines a derate increment size based on the ambient or GPS information, imposes a sustained derate by applying a torque limit on a braking torque of the vehicle based on the derate increment size in response to detecting a traction control event. The controller also determines a verification period and a derate reduction period based on the ambient or GPS information to reduce the sustained derate in response to detecting a lack of traction control event during the verification period at a rate determined by the derate reduction period.
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公开(公告)号：US20220135009A1
公开(公告)日：2022-05-05
申请号：US17085845
申请日：2020-10-30
Applicant: CUMMINS INC.
Inventor： Jaime Antonio Lugo-Castillo , Martin T. Books , Richard A. Booth
Abstract: Methods and systems for operating a vehicle on a reduced traction surface are disclosed. A controller of the vehicle obtains at least one of: ambient information or GPS information, determines a derate increment size based on the ambient or GPS information, imposes a sustained derate by applying a torque limit on a braking torque of the vehicle based on the derate increment size in response to detecting a traction control event. The controller also determines a verification period and a derate reduction period based on the ambient or GPS information to reduce the sustained derate in response to detecting a lack of traction control event during the verification period at a rate determined by the derate reduction period.
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公开(公告)号：US20240399889A1
公开(公告)日：2024-12-05
申请号：US18203400
申请日：2023-05-30
Applicant: Cummins Inc.
Inventor： Balan Mariappan Selvaraj , Gajendran Bakthavachalam , Oluwademilade Adedunmolu Alabi , Richard A. Booth , Jaime Antonio Lugo-Castillo
IPC: B60L15/20
Abstract: A system for controlling a vehicle speed of a vehicle is described. The system comprises a motor, a vehicle speed sensor, a vehicle speed governor, and a controller. The motor is configured to provide an output torque for driving the vehicle. The vehicle speed sensor provides a vehicle speed signal corresponding to the vehicle speed. The vehicle speed governor has a vehicle speed limit for the vehicle, where the vehicle speed governor adjusts the vehicle speed limit according to a desired direction of travel of the vehicle and a load corresponding to the motor. The desired direction of travel is selectable by an operator of the vehicle. The controller is configured to adjust the output torque of the motor according to the vehicle speed limit and the vehicle speed signal.
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公开(公告)号：US11724678B2
公开(公告)日：2023-08-15
申请号：US17085845
申请日：2020-10-30
Applicant: CUMMINS INC.
Inventor： Jaime Antonio Lugo-Castillo , Martin T. Books , Richard A. Booth
CPC classification number: B60T8/17636 , B60W10/06 , B60W10/08 , B60W10/18 , B60W20/10 , B60W30/02 , B60T2210/30 , B60T2210/36 , B60T2250/04 , B60T2270/10 , B60T2270/602 , B60T2270/604 , B60W2555/20
Abstract: Methods and systems for operating a vehicle on a reduced traction surface are disclosed. A controller of the vehicle obtains at least one of: ambient information or GPS information, determines a derate increment size based on the ambient or GPS information, imposes a sustained derate by applying a torque limit on a braking torque of the vehicle based on the derate increment size in response to detecting a traction control event. The controller also determines a verification period and a derate reduction period based on the ambient or GPS information to reduce the sustained derate in response to detecting a lack of traction control event during the verification period at a rate determined by the derate reduction period.
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