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Wire-control four-wheel independent steering system based on universal transmission structure

A technology of four-wheel independent steering and universal transmission, applied in the direction of power steering mechanism, steering mechanism, steering rod, etc., can solve the problems of reducing motor power, reducing steering torque, etc., and achieve the goal of increasing robustness and reducing errors Effect

Inactive Publication Date: 2016-12-21
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The smaller kingpin inclination can also reduce the steering torque, thereby reducing the power of the motor

Method used

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  • Wire-control four-wheel independent steering system based on universal transmission structure
  • Wire-control four-wheel independent steering system based on universal transmission structure
  • Wire-control four-wheel independent steering system based on universal transmission structure

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Embodiment Construction

[0017] Referring to the invention as shown in the figure, the four-wheel independent steering system by wire is based on the universal transmission structure. The device consists of the following parts: rotating motor (1), reducer (2), buffer device (3), transmission shaft (4), MacPherson suspension system (5), rotating device (6), gear pair ( 7), transmission device (8) and ball cage universal joint (9).

[0018] Refer to attached figure 1 As shown, the rotational motion of the motor is input into the universal transmission structure after being decelerated by the reducer (2). This structure is made up of transmission shaft (4) and spherical cage universal joint (9). Afterwards, power is input in the transmission device (8) through this. The transmission (8) is arranged above the steering knuckle as part of the MacPherson suspension. A gear pair (7) is arranged inside the transmission device (8), through which the magnitude and direction of power can be changed. The gear...

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Abstract

The invention provides a wire-control four-wheel independent steering system based on a universal transmission structure. The system comprises a rotary motor (1), a reducer (2), a buffer device (3), a drive shaft (4), a McPherson suspension system (5), a rotating device (6), a transmission device (8) and a ball universal joint (9). the power of the rotary motor (1) is input in the transmission device (8) through the ball universal joint (9) and the drive shaft (4); the direction and size of the rotary movement are changed by a gear pair (7); a steering knuckle is driven by the rotating device (6) to rotate to realize rotating angle between minus 90 DEG to plus 90 DEG. Because of the constant velocity of the ball universal joint, the linear relationship between input angle and wheel turning angle does not change with the change of positioning parameters which increases the ability of the control system to resist external disturbance and enhance its robustness. At the same time, the structure reduces the kingpin inclination angle by the outward movement of the arrangement of the transmission device (8) to increase the driving stability.

Description

technical field [0001] The present invention designs a wire-controlled four-wheel independent steering system based on a universal transmission structure. The steering system is suitable for four-wheel independent driving, braking, and steering intelligent vehicles, and can realize ±90° rotation angle of each wheel. The invention belongs to the technical field of automobile steering system. Background technique [0002] With the development of automobile technology, more and more attention has been paid to the active safety of automobiles. Four-wheel steering is one of the ways to achieve active safety. At the same time, the four-wheel steering vehicle can realize various modes of action such as oblique driving, crab driving, and spot steering, etc., which has high flexibility and is suitable for urban congestion conditions. Therefore, this requires that the four steering wheels can be turned to ±90°. Most of the existing four-wheel steering systems realize the steering p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/09B62D7/14
CPCB62D5/092B60K17/358B62D7/14
Inventor 郑宏宇杨硕魏薇傅磊尹倪
Owner JILIN UNIV
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