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Novel motor-based electric car four-wheel independent steering system

A four-wheel independent steering, electric vehicle technology, applied in the direction of electric steering mechanism, steering mechanism, steering rod, etc., can solve the problems of affecting the appearance of the car, increasing the height of the front body, affecting the driver's vision, etc., and achieving a small number of parts and components , Increase the range of corners, the effect of rapid response

Inactive Publication Date: 2016-01-20
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN102874304A proposes to use a rotary motor to perform four-wheel independent steering of electric vehicles, but because the rotary motor is placed vertically, the height of the front body is increased, which affects the driver's field of vision; and the steering motor is exposed outside the body, thereby giving the body design It brings great difficulties and greatly affects the appearance of the car
And since the steering mechanism is directly connected to the rotating motor, it creates noise when the rotating motor responds

Method used

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  • Novel motor-based electric car four-wheel independent steering system
  • Novel motor-based electric car four-wheel independent steering system
  • Novel motor-based electric car four-wheel independent steering system

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Embodiment Construction

[0024] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] refer to figure 1 , figure 2 , the wire drive motor 6 is fixed, and the end of the wire drive motor shaft 5 is threaded; the pull rod joint 3 includes a pull rod cylindrical hole 10 and a pull rod threaded end 11. Wherein, the shaft shoulder of the threaded end 11 of the tie rod plays a position-limiting role; the tie rod joint 3 is coaxially connected with the wire drive motor shaft 5 through the cylindrical connection sleeve 4 with internal threads. One end of the steering knuckle arm 2 is connected with the cylindrical hole 10 of the tie rod joint through a connecting piece, and the other end is connected with a fixed steering shaft. The linear motion of the wire drive motor 6 is converted into the rotary motion of the left front wheel through the connection mechanism and the transmission mechanism, thereby realizing...

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Abstract

The invention discloses a novel motor-based electric car four-wheel independent steering system, and aims at improving maneuverability and handling stability of an electric car. The four-wheel independent steering system has the advantages that when an electric car turns at low speed, front and rear wheels perform antiphase steering, a turning radius of the car can be reduced, and the mobility of the electric car is improved; when the electric car turns at high speed, the front and rear wheels mainly perform in-phase steering, a side slip angle of the car can be reduced, the steady-state overshoot amount of a yaw rate of the car and the like are lowered, and vehicle handling stability is further improved. The steering system comprises novel motors, a connecting mechanism and a transmission mechanism, wherein each novel motor adopts a linear transmission motor; the connecting mechanism is used for connecting the linear transmission motors with the transmission mechanism, and comprises a cylindrical connecting sleeve; the transmission mechanism comprises a steering knuckle arm. Four wheels are all steering wheels and respectively correspond to one linear transmission motor; the four linear transmission motors are mutually independent and directly drive the steering of the respectively corresponding wheel.

Description

Technical field: [0001] The invention relates to a four-wheel independent steering system of an electric vehicle based on a novel motor, which is used for the four-wheel independent steering of the electric vehicle. technical background: [0002] The car steering system is used to change or maintain the driving direction of the car. Its function is to control the driving direction of the car according to the driver's wishes. The car steering system is very important to the driving safety of the car. Although the traditional steering system (mechanical, hydraulic power steering or electric power steering system) has developed quite maturely and is widely used in modern automobiles, with the continuous advancement of automobiles and electronic technology and the significant improvement of people's living standards, traditional steering systems The system has largely failed to meet people's requirements for high-performance steering systems. Compared with the traditional steer...

Claims

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Application Information

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IPC IPC(8): B62D7/14B62D5/04
Inventor 郑宏宇赵明新杨硕
Owner JILIN UNIV
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