Differential steering control method and system for new energy vehicle

A new energy vehicle and differential steering technology, which is applied in the field of automobile manufacturing, can solve problems such as the instability of wheel new energy electric vehicles, and achieve the effect of avoiding vehicle loss of control

Active Publication Date: 2021-04-06
无锡蓝海华腾技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new energy vehicle differential steering control method and system, which uses the steering wheel steering to correlate the vehicle speed to control the Ackerman angle, so as to solve the problem of the electronic differential speed of the wheel hub new energy electric vehicle in the prior art. Instability when turning

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  • Differential steering control method and system for new energy vehicle
  • Differential steering control method and system for new energy vehicle
  • Differential steering control method and system for new energy vehicle

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0038] Such as figure 1 As shown, the present invention provides a new energy vehicle differential steering control method, comprising the following steps:

[0039] Step S1: Obtain the current steering wheel angle and driving speed of the vehicle;

[0040] Step S2: Determine the driving mode of the vehicle according to the driving speed of the vehicle;

[...

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Abstract

The invention discloses a differential steering control method and system for a new energy vehicle. The control method comprises the steps of obtaining the current steering wheel corner angle and driving speed of the automobile; determining a vehicle driving mode according to the vehicle driving speed; calculating an Ackerman corner in the current driving mode according to the steering wheel corner angle of the vehicle; calculating the deflection front wheel steering angular velocity of the vehicle according to the Ackerman rotation angle; according to the method, the problem that in the prior art, a hub new energy electric vehicle is unstable during electronic differential steering can be solved, the situation that the vehicle is out of control due to the too large steering angle of a high-speed driving steering wheel is effectively avoided, and the whole system is safer.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a differential steering control method and system for a new energy automobile. Background technique [0002] New energy vehicles can be divided into in-wheel electric vehicles and wheel-side electric vehicles according to the distribution of drive motors. The drive motors of in-wheel electric vehicles are integrated in the wheels, the stator of the motor is fixed on the vehicle, and the rotor and the wheels are fixed, which saves a lot of transmission. Parts, more convenient for vehicle interior layout. [0003] The hub electric vehicle adopts the method of electronic differential speed to distribute the angular velocity output of four wheels or two front wheels when steering. How to achieve safe steering under high-speed driving conditions of in-wheel electric vehicles needs to correlate the steering wheel and vehicle speed. The traditional method is to contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D15/02B60L15/20
CPCB62D15/021B60L15/2036Y02T10/72
Inventor 翟国建谢玲玉冯文杰
Owner 无锡蓝海华腾技术有限公司
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