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Vehicle steer-by-wire device with redundant mechanism, and control method of vehicle steer-by-wire device

A steer-by-wire technology for vehicles, which is applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc., can solve the problems of the driver's loss of road sense, loss of steering ability, lack of mechanical connection, etc., to improve steering characteristics, eliminate Effects of mechanical connection and overall development cost reduction

Pending Publication Date: 2019-07-12
BEIJING AUTONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the lack of a reliable mechanical connection in the steering-by-wire system, fault-tolerant technology must be used to avoid the loss of steering ability and the driver's loss of road sense when a fault occurs. It is necessary to provide a high-safety steering-by-wire system

Method used

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  • Vehicle steer-by-wire device with redundant mechanism, and control method of vehicle steer-by-wire device
  • Vehicle steer-by-wire device with redundant mechanism, and control method of vehicle steer-by-wire device
  • Vehicle steer-by-wire device with redundant mechanism, and control method of vehicle steer-by-wire device

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] Such as Figures 1 to 4 As shown, according to the embodiment of the present invention, the vehicle steer-by-wire device with a redundant mechanism includes: a steering mechanism, the steering mechanism includes a road sense motor 2, a first worm gear reduction mechanism 3, a steering column, and a steering tube The steering wheel connected to the column, and the first torque angle sensor for detecting the torque angle of the steering wheel, the road se...

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Abstract

The invention discloses a vehicle steer-by-wire device with a redundant mechanism, and a control method of the vehicle steer-by-wire device. The vehicle steer-by-wire device comprises a steering manipulation mechanism, a steering execution mechanism, a first clutch device and a controller; the first clutch device is arranged at the rear end of a steering coil column, and used for connecting or disconnecting the steering manipulation mechanism and the steering execution mechanism; the controller controls the steering manipulation mechanism and the steering execution mechanism; and the steeringexecution mechanism comprises a main motor, a rack assisted steering transmission mechanism connected with the main motor, an auxiliary motor, and a pinion electric assistance transmission mechanism connected with the auxiliary motor. Through mechanical disconnecting of the steering execution mechanism and the steering manipulation mechanism, and redundant design of the steering execution mechanism, the reliability of a steering system for high-grade automatic driving is improved, and high-safety design of the steer-by-wire system is achieved.

Description

technical field [0001] The invention relates to a vehicle steering-by-wire device and a control method, in particular to a vehicle-use steering-by-wire device with a redundant mechanism and a control method, belonging to the field of automobile steering systems. Background technique [0002] Automobile steering system has developed from simple mechanical steering system and hydraulic power steering system to electro-hydraulic power steering system and electric power steering system which are widely used at present. The electrification of the steering system reduces the energy consumption of the system and improves the steering performance. On this basis, in order to further improve the handling stability, active safety and driver comfort of the vehicle, the development of automobile technology has become more and more intelligent. The intelligence of the steering system provides the basis for car safety, assisted driving and autonomous driving vehicles, and is an important ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D119/00B62D113/00
CPCB62D5/0424B62D5/043B62D5/0463B62D6/00
Inventor 施国标王帅王歆鞠程赟
Owner BEIJING AUTONICS TECH
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