Four-wheel independent steering system with steering motor mounted on double wishbone suspension knuckle

A four-wheel independent steering and steering motor technology, applied in steering mechanisms, electric steering mechanisms, power steering mechanisms, etc., can solve problems such as difficulty in achieving suspension kinematic performance, and achieve sensitive steering response, high integration, and short transmission chain. Effect

Inactive Publication Date: 2017-05-31
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing four-wheel independent steering system often adopts simple suspension form

Method used

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  • Four-wheel independent steering system with steering motor mounted on double wishbone suspension knuckle
  • Four-wheel independent steering system with steering motor mounted on double wishbone suspension knuckle

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0025] This application proposes a steering motor (the steering motor adopts a servo motor, and the servo motor may be used with a reducer, the same below) arranged on the steering knuckle of the double-wishbone suspension by wire four-wheel independent steering system. The casing of the steering motor is fixedly connected to the motor bracket. The motor bracket contains a thrust bearing (its axis is the same as the output axis of the motor assembly) and is connected to the steering knuckle through the thrust bearing. The transmission torque can drive the steering knuckle to rotate ar...

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Abstract

The present invention relates to a four-wheel independent steering system with a steering motor mounted on a double wishbone suspension knuckle. The four-wheel independent steering system comprises the steering motor, an upper swing arm, a lower swing arm, and a knuckle for driving wheels to steer. The upper swing arm and the lower swing arm are connected with a body. The steering system also comprises a motor bracket. The motor bracket is connected with the knuckle by a thrust bearing, the steering motor is fixed on the motor bracket, and the output shaft of the steering motor is connected with the knuckle by a key, the upper swing arm is connected with the motor bracket through a hooke joint, and the lower swing arm is connected with the knuckle through a spherical hinge. Compared with the prior art, the advantages of the double wishbone independent suspension and a wire steering system are combined, good suspension kinematic characteristics are achieved, a steering servo motor assembly is arranged on the wheel rim, so that the integration of the suspension and the steering system is realized, and the integration level is high.

Description

technical field [0001] The invention relates to a four-wheel independent steering system, in particular to a four-wheel independent steering system in which a steering motor is placed on a double-wishbone suspension steering knuckle. Background technique [0002] The traditional vehicle steering system ensures that there is a certain functional relationship between the inner and outer wheel angles during steering through the steering trapezoidal mechanism, which approximately satisfies the Ackermann steering law. However, due to the existence of the steering trapezoid, it will inevitably cause the movement interference of the suspension guide mechanism and the steering rod system when the wheels jump up and down, and it is impossible to realize the steering at a large angle. The four-wheel independent steering by wire technology cancels the traditional trapezoidal steering mechanism, which fundamentally solves this problem. The four-wheel-by-wire independent steering techno...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D7/14
CPCB62D5/0418B62D7/146
Inventor 余卓平王心坚孟德建张立军卓桂荣陈辛波王威
Owner TONGJI UNIV
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