Vehicle and method and device for eliminating vehicle shake

Abstract

The invention discloses a vehicle and a method and a device for eliminating vehicle shake. The method for eliminating vehicle shake comprises the following steps: acquiring a torque control curve of the vehicle according to a state of an acceleration pedal on the vehicle, wherein the torque control curve comprises output torques of a motor at different moments; controlling the output torque outputby the motor in the vehicle according to the torque control curve; acquiring a rotating speed variable amount under the output torque; and judging whether the vehicle shakes or not according to the rotating speed variable amount, if so, adjusting the torque control curve till eliminating the vehicle shake and stopping adjustment of the torque control curve. According to the method of eliminatingvehicle shake, a shake phenomenon of the motor switch between positive and negative torque at a zero crossing point is eliminated by adjusting the torque control curve, so that the comfort and power of the whole vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method for eliminating vehicle vibration, a device for eliminating vehicle vibration and a vehicle with the device. Background technique [0002] The development of new energy vehicles is a national strategy. After more than 10 years of research and development and demonstration operation, my country's new energy vehicle industry has formed a comprehensive system from the R&D and production of key components such as raw material supply, power batteries, and vehicle controllers to the design and manufacture of complete vehicles. As well as a complete industrial chain such as the supporting construction of charging infrastructure, it has the basis for industrialization. [0003] When the new energy vehicle uses the coupling scheme of the motor and the reducer, the motor will switch from positive torque to negative torque or negative torque to positive torque. Due to the gap betwe...

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Problems solved by technology

[0003] When the new energy vehicle uses the coupling scheme of the motor and the reducer, the motor will switch from positive torque to negative torque or negative torque to positive torque. Due to the gap between the spline fits, there will be mechanical shocks, causing the vehicle to exist. Vibration phenomenon, which seriously affects the comfort and power of the vehicle

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