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Multi-mode steering system of in-wheel motor drive automobile and method for controlling multi-mode steering system

A technology of a steering system and a control method, applied in electric vehicles, electric steering mechanisms, power steering mechanisms, etc., can solve problems such as the inability to change the angular transmission ratio

Active Publication Date: 2017-05-31
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this system cannot change the angular transmission ratio, and still cannot fundamentally solve the contradiction between steering "lightness and flexibility"

Method used

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  • Multi-mode steering system of in-wheel motor drive automobile and method for controlling multi-mode steering system
  • Multi-mode steering system of in-wheel motor drive automobile and method for controlling multi-mode steering system
  • Multi-mode steering system of in-wheel motor drive automobile and method for controlling multi-mode steering system

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Embodiment Construction

[0107] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0108] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0109] figure 1 An implementation form of the present invention is shown, a multi-mode steering system of an electric wheel drive vehicle, including: a steering wheel 100 , a steering motor 200 , an electromagnetic clutch 300 , a steering actuator 400 , and a central control unit (ECU) 500 . The steering wheel 100 inputs the driver's steering intention, and the upper end of the steering shaft 110 is connected with the steering wheel 100 through a spline for outputting the steering intention. The steering motor 200 includes a rotor 220 and an output shaft 260. The rotor 220 is a ...

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Abstract

The invention discloses a multi-mode steering system of an in-wheel motor drive automobile and a method for controlling the multi-mode steering system. The multi-mode steering system is characterized by comprising a steering shaft, a power-assisted steering motor, an electromagnetic clutch, a steering gear, hub motors and an ECU (electronic control unit); the power-assisted steering motor comprises a rotor, and the rotor is connected with the steering shaft; the electromagnetic clutch comprises an input end and an output end, the input end and the output end can be selectively combined with each other or separated from each other, and the input end is connected with the rotor; the steering gear is fixedly connected with the output end; hubs can be driven by the hub motors, and the hub motors are used for driving wheels to rotate; the ECU is connected with the hub motors, the power-assisted steering motor and the electromagnetic clutch, and five steering modes can be outputted under the control of the ECU. The multi-mode steering system and the method have the advantages that the multi-mode steering system can be in diversified work modes, and the reliability and the safety of the multi-mode steering system can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of automobiles. More particularly, the present invention relates to a multi-mode steering system and control method for electric wheel drive vehicles. Background technique [0002] Electric wheel means that the hub motor is directly integrated into the wheel, and the motor directly drives the wheel, which saves the complicated mechanical transmission mechanism of the traditional car and makes the space layout more flexible. At the same time, the four wheels can be controlled independently, which is convenient for complex Coordinated control of dynamics and stability. [0003] Among the existing automobile steering systems, the non-assisted mechanical steering system takes up a large space and is laborious to operate, so it has been basically eliminated; its alternative product, the hydraulic power steering system, can solve the problem of steering portability, but its power-assisted characteristics are soli...

Claims

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Application Information

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IPC IPC(8): B62D5/04B60L15/20
CPCB60L15/2036B60L2220/44B60L2240/423B62D5/043B62D5/046B62D5/0478B62D5/0487Y02T10/72
Inventor 王军年罗正郭德东王凯杨斌
Owner JILIN UNIV
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