The invention discloses a new energy vehicle jitter suppression method, which comprises the following steps: when a motor controller receives a vehicle torque request, calculating according to a motor rotating speed n to obtain an acceleration change rate j, calculating according to the acceleration change rate j to obtain a suppression torque Tdsampling, and obtaining a motor output torque Tem according to the suppression torque Tdsampling and a vehicle torque request value Treq. According to the method, acceleration change suppression is taken as a core, calibrated parameters are greatly reduced, drivability and the dynamic property of the whole vehicle are improved, calibration efficiency is remarkably improved, vehicle characteristics are covered, adaptability is wider, and influences caused by vehicle scattering difference are sufficiently dealt with; the method can be implemented by using current hardware, the algorithm is easy to implement, and extra hardware cost is not increased.
本发明公开了一种新能源车辆抖动抑制方法,其中,电机控制器接收到整车扭矩请求时,根据电机转速n计算得到加速度变化率j,并利用所述加速度变化率j计算得到抑制扭矩Tdamping,根据所述抑制扭矩Tdamping和整车扭矩请求值Treq得到电机输出扭矩Tem。本发明将加速度的变化抑制作为核心,标定的参数大大减少,驾驶性和整车动力性得到提升,标定效率得到显著提高,而且涵盖了车辆特性,适应性更广,足够应对车辆散差带来的影响;使用当前的硬件就可以实现,算法易于实现,不会增加额外的硬件成本。
Jitter suppression method for new energy vehicle
新能源车辆抖动抑制方法
2023-05-05
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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