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公开(公告)号：US20220297691A1
公开(公告)日：2022-09-22
申请号：US17206616
申请日：2021-03-19
发明人： Jacob M. Knueven , Jason C. Jousma , Paul G. Otanez , Aubrey W. Downs, JR. , Joseph D. Hillegass , Abdoulaye T. Diallo
摘要： A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.
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公开(公告)号：US11745741B2
公开(公告)日：2023-09-05
申请号：US17206616
申请日：2021-03-19
发明人： Jacob M. Knueven , Jason C. Jousma , Paul G. Otanez , Aubrey W. Downs, Jr. , Joseph D. Hillegass , Abdoulaye T. Diallo
CPC分类号： B60W30/146 , B60K31/00 , B60L15/20 , G01P3/44 , G01P15/08 , B60K6/22 , B60K2031/0091 , B60L2240/12 , B60L2240/14 , B60W2530/10 , B60W2540/10 , B60W2540/12 , B60Y2200/91 , B60Y2200/92
摘要： A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.
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公开(公告)号：US20230138305A1
公开(公告)日：2023-05-04
申请号：US17515947
申请日：2021-11-01
发明人： Richard A. Kulas , Douglas J. Moening , Abdoulaye T. Diallo , Jenna C. Pechauer , Aubrey W. Downs, JR.
摘要： A method mitigates an unintended lateral motion (ULM) event of a motor vehicle having a powertrain system with multiple propulsion actuators. The method, which may be recorded on a computer readable storage medium and executed therefrom by a processor, includes identifying, via an electronic controller of the motor vehicle, a present dynamic operating region at an onset of the ULM event as a linear or non-linear operating region. Lateral motion includes lateral acceleration and/or lateral yaw of the motor vehicle. The method also includes determining whether the lateral motion exceeds calibrated lateral dynamic limits for the particular operating region, and executing a powertrain control action in different manners depending on whether the ULM event occurs in the non-linear or linear operating region. The powertrain control action includes changing a dynamic speed state of at least one of the propulsion actuators.
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