Enhanced electrically driven vehicle performance with extended motor torque capability. High voltage electrical systems, control logic, and electrically driven automobiles with optimized motor torque output are presented. A method of operating an electrically driven vehicle includes a controller identifying an operating mode of the vehicle and determining a calibration setting corresponding to the operating mode. These calibration settings include coolant temperature (CoolTemp) lower and upper limits, and motor calibration torque limits as a function of coolant temperature. The controller determines whether a current coolant temperature of the power inverter coolant is greater than a low coolant temperature threshold and less than a high coolant temperature threshold. If so, the controller sets a motor torque limit of the vehicle electric machine to a torque limit value selected from a fixed torque limit region within a torque limit data range between the low and high coolant temperature thresholds. The controller operates the power inverter to adjust power transfer between the rechargeable battery and the electric machine according to the motor torque limit.
带有扩展的马达扭矩能力的增强的电驱动车辆性能。介绍了高压电气系统、控制逻辑和具有优化马达扭矩输出的电驱动汽车。一种操作电驱动车辆的方法,包括识别车辆的操作模式并确定与该操作模式对应的校准设置的控制器。这些校准设置包括冷却剂温度(CoolTemp)下限和上限,以及作为冷却剂温度函数的电机校准扭矩限值。控制器确定电源逆变器冷却剂的当前冷却剂温度是否大于低冷却剂温度阈值且小于高冷却剂温度阈值。如果是,控制器将车辆电机的马达扭矩限制设置为从低和高冷却剂温度阈值之间的扭矩限制数据范围内的固定扭矩限制区域中选择的扭矩限制值。控制器操作电源逆变器,以根据马达扭矩限制调节可充电电池和电机之间的电力传输。
Enhanced electrically driven vehicle performance with extended motor torque capability
带有扩展的马达扭矩能力的增强的电驱动车辆性能
2022-05-13
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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