The invention discloses a gear clearance engagement torque control method and system. The rotating speed of a motor at the current moment can be obtained; the rotating speed serves as a given value to be input into a speed ring PI controller, the given value is periodically adjusted, and therefore corresponding speed ring feedback torque is obtained; the speed loop feedback torque and a corresponding pre-calibrated torque are superposed to obtain a control torque, and the pre-calibrated torque is a torque value corresponding to the current moment in a torque curve obtained through whole vehicle calibration in advance; and controlling a gear of the motor to realize meshing based on the control torque. Therefore, it can be seen that the appropriate torque can be accurately inquired based on the torque curve calibrated in advance, closed-loop control is carried out based on the speed loop feedback torque to form the control torque, then the motor is controlled to operate based on the control torque, meshing between gears is achieved, gear leaning tooth abnormal sound and gear leaning tooth shaking are effectively solved, and the gear leaning tooth quality is improved. The inhibition effect is ideal.
本发明公开了一种齿轮间隙咬合扭矩控制方法及系统,可以获得电机在当前时刻的转速;将所述转速作为给定值输入至速度环PI控制器,并周期性调整所述给定值,从而得到相应的速度环反馈扭矩;将所述速度环反馈扭矩与相应预先标定的扭矩叠加得到控制扭矩,其中,所述预先标定的扭矩为预先进行整车标定得到的扭矩曲线中、所述当前时刻对应的扭矩值;基于所述控制扭矩,控制所述电机的齿轮实现咬合。由此可以看出,本发明可以基于预先标定的扭矩曲线准确查询到合适的扭矩,并基于速度环反馈扭矩进行闭环控制形成控制扭矩,然后再基于控制扭矩控制电机运行,以实现齿轮间的咬合,有效解决齿轮靠齿异响和齿轮靠齿抖动,抑制效果理想。
Gear clearance engagement torque control method and system
齿轮间隙咬合扭矩控制方法及系统
2023-08-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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