Pure electric car anti-shake control method and device

Abstract

The invention discloses a pure electric car anti-shake control method. The method comprises the steps that under the condition that the car speed and the driving torque of a target car are zero, the gear changing condition of a shifter is monitored, when it is monitored that the shifter is switched to the forward gear or the reverse gear, on the premise that a brake pedal is not loosened yet, the driving torque is increased to preset first torque, and the preset first torque is decreased to zero immediately; and under the condition that the car speed of the target car is within a preset first car speed range, whether an accelerator pedal is completely loosened or not is monitored, and when the accelerator pedal is completely loosened, the driving torque is decreased to preset second torque. Accordingly, through the method, shake of the car is not caused, when the car conducts normal drive, the target torque can be reached rapidly, and the problem that in the prior art, the response of an accelerator is slowed due to the method of decreasing the torque increment is solved.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a pure electric vehicle anti-vibration control method and device. Background technique [0002] In pure electric vehicles, when the gears of the differential gear mesh, a certain gap will be reserved between the bevel teeth and the basin teeth during design and installation, which can prevent the bevel teeth and the basin teeth from being locked during thermal expansion. . In addition, due to the error in processing and assembly, there will also be gaps in the connection of the various components of the transmission system. These gaps mentioned above can be collectively referred to as the gap of the transmission system. [0003] Due to the existence of transmission system clearance, the transmission system will produce shock and vibration under certain working conditions. Make the transmission system produce shock and jitter. [0004] In the prior art, when the vehicl...

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Problems solved by technology

[0005] In view of this, the present invention proposes a pure electric vehicle anti-shake control method and device, which solves the problem of throttle response caused by reducing the torque increment to eliminate shock and vibration in the prior art through the method and device. slow down problem

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