The present disclosure provides a feed-forward torque limit for a motorized powertrain. Methods and systems are provided for limiting a requested wheel torque during start-up of a vehicle having an electrically powered powertrain. In one example, a method may include, in response to a currently available discharge power being less than or equal to a threshold discharge power, operating a vehicle when a requested wheel torque is at a feed-forward torque limit, the feed-forward torque limit based on the discharge power and a threshold vehicle speed. In this manner, a large offset of wheel torque at the time of vehicle starting may be avoided, thereby reducing noise, vibration and roughness of the motorized powertrain.
本公开提供“用于电动化动力传动系统的前馈扭矩极限”。提供了用于在具有电动化动力传动系统的车辆的起动期间限制所请求的车轮扭矩的方法和系统。在一个示例中,一种方法可以包括响应于当前可用的放电功率小于或等于阈值放电功率,在请求车轮扭矩处于前馈扭矩极限时操作车辆,所述前馈扭矩极限是基于所述放电功率和阈值车辆速度。通过这种方式,可以避免在车辆起动时车轮扭矩的大幅偏移,由此减少电动化动力传动系统的噪声、振动和粗糙性。
Feedforward torque limits for motorized powertrain
用于电动化动力传动系统的前馈扭矩极限
2022-08-23
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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