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Car anti-shake method and system, and a motor controller

A car anti-shake technology, applied in the automotive field, can solve the problems of vehicle shake, assembly transmission parts not fully fitted, etc., and achieve the effect of smooth torque output

Inactive Publication Date: 2016-12-07
SHENZHEN BYD DAIMLER NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention discloses an automobile anti-shake method, system and motor controller to solve the problem of vehicle shaking caused by the incomplete fit of the transmission parts of the assembly when the vehicle is accelerating

Method used

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  • Car anti-shake method and system, and a motor controller
  • Car anti-shake method and system, and a motor controller
  • Car anti-shake method and system, and a motor controller

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0041] The embodiment of the present invention discloses a vehicle anti-shake method, system and motor controller to solve the problem of vehicle shake caused by incomplete assembly of transmission components when the vehicle is accelerating.

[0042] See figure 1 , A method flow chart of an automobile anti-shake method disclosed in an embodiment of the present invention, the method includes the steps:

[0043] Step S11: Obtain the current m...

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Abstract

The invention discloses a car anti-shake method and system, and a motor controller. The torque command compensation amount corresponding to the motor rotation speed is used as a negative feedback signal to be introduced into a torque control loop, so that compensation of an original torque demand value is avoided; and the torque command compensation amount and the original torque demand value are used as torque controlled variables together, so that the purpose of smooth torque output is achieved, and the problem that a car shakes due to incomplete attachment of an assembly transmission part during acceleration of the car is solved.

Description

Technical field [0001] The invention relates to the field of automobile technology, and more specifically, to an automobile anti-shake method, system and motor controller. Background technique [0002] A pure electric vehicle is a vehicle powered by an on-board power supply and driven by a motor to drive wheels, which meets the requirements of road traffic and safety regulations. Since pure electric vehicles have a smaller impact on the environment than traditional vehicles, they have gradually become the development direction of automobiles. [0003] Due to the gaps between the transmission components of the pure electric vehicle assembly, the transmission components between the output shaft of the motor and the wheels show a flexible connection, that is, the internal gears of the gearbox are incompletely fit without torque output. status. Therefore, when the electric vehicle accelerates at a low speed, the transmission components will not immediately stably deviate in the drivi...

Claims

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Application Information

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IPC IPC(8): B60L15/20
CPCB60L15/20Y02T10/72
Inventor 刘海军黄伟
Owner SHENZHEN BYD DAIMLER NEW TECH CO LTD
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