The invention provides a vehicle starting shaking control method and device. The vehicle starting shaking control method comprises the steps that vehicle starting shaking is determined; when the clutch is in the first fluctuation period, the first rotating speed difference of the clutch is obtained; the first rotating speed difference is the maximum value of the rotating speed difference between the actual rotating speed and the ideal rotating speed of the clutch; when the first rotating speed difference is greater than zero, determining a second rotating speed difference of the clutch according to the first rotating speed difference; the second rotating speed difference is the rotating speed difference between the actual rotating speed and the ideal rotating speed of the clutch when the clutch is in the second fluctuation period; when the clutch is in a second fluctuation period, under the action of the control torque, the difference value between the actual rotating speed and the ideal rotating speed of the clutch is controlled to be smaller than a first threshold value so as to weaken starting shaking of the vehicle; the control torque is determined according to the second rotational speed difference. And the jitter working condition is recognized in real time, the control torque applied in the second fluctuation period is determined through the maximum rotating speed difference of the first fluctuation period, the jitter amplitude is suppressed, and the vehicle starting jitter amplitude is weakened.
本申请提供一种车辆起步抖动的控制方法及控制装置,确定车辆起步抖动;在离合器处于第一波动周期时,获取离合器的第一转速差;第一转速差为离合器的实际转速和理想转速之间的转速差的最大值;在第一转速差大于零时,根据第一转速差确定离合器的第二转速差;第二转速差为在离合器处于第二波动周期时,离合器的实际转速和理想转速之间的转速差;在离合器处于第二波动周期时,在控制扭矩作用下,控制离合器的实际转速和理想转速的差值小于第一阈值,以便弱化车辆起步抖动;控制扭矩是根据第二转速差确定。对抖动工况进行实时识别,通过第一波动周期的最大转速差确定出第二波动周期时施加的控制扭矩,对抖动幅度进行压制,弱化车辆起步抖动幅度。
Control method and control device for starting shaking of vehicle
一种车辆起步抖动的控制方法及控制装置
2024-01-30
Patent
Electronic Resource
Chinese
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