The invention relates to an electric drive stall torque boost based on vehicle horizontal input. A method for increasing a default electric stall torque limit in a motor vehicle having an electrified powertrain including a traction power inverter module (TPIM) connected to an electric traction motor includes receiving, by a controller, a vehicle level input. The controller is programmed to have a default electric stall torque limit. The method includes selecting, by a controller, an inverter control strategy as a selected inverter control strategy in response to a vehicle level input, the strategy including temporarily increasing a default electric stall torque limit while applying a pulse width modulation (PWM) type at a corresponding PWM switching frequency. The method further includes controlling, by the controller, an output state of the TPIM and the electric traction motor for a calibrated duration using the selected inverter control strategy. A motor vehicle includes the controller, a wheel, a TPIM, and a traction motor.
本发明涉及基于车辆水平输入的电驱动失速扭矩增强。一种用于在具有包括连接到电动牵引马达的牵引功率逆变器模块(TPIM)的电气化动力总成的机动车辆中增加默认电动失速扭矩限制的方法包括通过控制器接收车辆水平输入。该控制器被编程为具有默认电动失速扭矩限制。该方法包括通过控制器选择逆变器控制策略,作为响应于车辆水平输入的选定的逆变器控制策略,该策略包括暂时增加默认电动失速扭矩限制,同时应用对应的PWM开关频率下的脉宽调制(PWM)类型。该方法还包括使用选定的逆变器控制策略通过控制器在校准的持续时间内控制TPIM和电动牵引马达的输出状态。一种机动车辆包括该控制器、车轮、TPIM和牵引马达。
Electric drive stall torque enhancement based on vehicle level input
基于车辆水平输入的电驱动失速扭矩增强
29.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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