A vehicle monitoring strategy for detecting unexpected acceleration during speed control. A method detects an unexpected acceleration of a motor vehicle in a closed-loop speed control mode by determining external forces on the vehicle via a controller and then calculating a desired acceleration using the measured vehicle speed and these external forces. The method includes determining an actual acceleration of the vehicle, including filtering the speed signal to 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 change value from a difference between a desired acceleration and an actual acceleration, and then using the acceleration change value to detect an unexpected acceleration during the speed control mode. A powertrain system for a motor vehicle (e.g., an electric vehicle) includes a controller and one or more torque generating devices coupled to road wheels of the vehicle.
用于在速度控制期间检测意外加速的车辆监测策略。本发明涉及一种方法,其通过以下方式在闭环速度控制模式检测机动车辆的意外加速:经由控制器确定车辆上的外力,且然后使用测量的车辆速度和这些外力来计算期望加速度。该方法包括确定车辆的实际加速度,包括将速度信号滤波为第一实际加速度值和/或使用惯性测量单元(IMU)来测量第二实际加速度值。在速度控制模式期间,该方法包括:根据期望加速度和实际加速度之间的差异计算加速度变化值,且然后使用该加速度变化值以在速度控制模式期间检测意外加速。一种用于机动车辆(例如,电动车辆)的动力总成系统包括控制器以及联接到车辆的行走轮的一个或多个扭矩产生装置。
Vehicle monitoring strategy for detecting accidental acceleration during speed control
用于在速度控制期间检测意外加速的车辆监测策略
2022-09-27
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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