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Multi-motor redundant device of steer-by-wire system and control method

A technology of steer-by-wire and redundant devices, which is applied to steering mechanisms, electric steering mechanisms, power steering mechanisms, etc., can solve the problem of lack of redundant protection for steering operation structures, and achieve the goal of ensuring safety and usability and driving safety Effect

Active Publication Date: 2019-12-20
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical solution only provides redundant backup for the main motor of the steering actuator, and lacks redundant protection for the steering operation structure

Method used

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  • Multi-motor redundant device of steer-by-wire system and control method
  • Multi-motor redundant device of steer-by-wire system and control method
  • Multi-motor redundant device of steer-by-wire system and control method

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Embodiment Construction

[0035] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0036] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0037] Such as figure 1 As shown, the present invention discloses a multi-motor redundancy device for a steer-by-wire system, which is suitable for light passenger vehicles and includes: steering wheel 1, road sensor m...

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Abstract

The invention discloses a multi-motor redundant device of a steer-by-wire system and a control method thereof. The device is additionally provided with a redundant motor, meanwhile, a clutch between an input shaft and an output shaft of the steer-by-wire system is provided with an intermediate shaft linked with the redundant motor and an intermediate shaft gear structure, a double-clutch structureof the input shaft and the intermediate shaft as well as the output shaft and the intermediate shaft is formed in the clutch, when a road feel motor and a steering motor or motor control units and control circuits of the road feel motor and the steering motor are abnormal, linkage between the intermediate shaft and the input shaft, linkage between the intermediate shaft and the output shaft, or linkage among the intermediate shaft, the input shaft and the output shaft can be realized under the control of an electronic control unit, so that the safety and the usability of the steer-by-wire system are guaranteed to the greatest extent, and when the steer-by-wire system is completely disabled, and the system can still be switched to a mechanical steering system so as to guarantee the drivingsafety of a vehicle.

Description

technical field [0001] The invention relates to the field of wire control technology, in particular to a multi-motor redundant device and a control method of a wire control steering system. Background technique [0002] Compared with the traditional mechanical steering system, the steer-by-wire system has obvious advantages: the steering wheel is not directly connected with the steering gear, and the vibration of the wheels will not be directly transmitted to the driver to improve the steering comfort; the use of electric signals to control the steering of the wheels is more convenient and convenient. Integrated control of other chassis systems; it can realize active steering control and improve the safety of vehicle handling; it can freely design the angular transmission characteristics of the steering system, and adapt to the driving habits of different drivers by designing the ideal angular transmission ratio, so the steer-by-wire system Become the mainstream of vehicle s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCB62D5/0457B62D5/046B62D5/0487
Inventor 韩锋钢田昊华彭倩
Owner XIAMEN UNIV OF TECH
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