Steer-by-wire device with redundancy function and control method

Abstract

The invention discloses a steer-by-wire device with a redundancy function and a control method, and belongs to the technical field of steer-by-wire. The steer-by-wire device with the redundancy function comprises a steering wheel; the road feeling simulator comprises a first control module, a torsion bar and a torque angle sensor arranged on the torsion bar, the first control module comprises a first motor, a first controller, a second motor and a second controller, the torsion bar is connected with the steering wheel, and the first controller is in communication connection with the second controller; a steering actuator comprises a second control module, a rack and a steering angle sensor, the second control module comprises a third motor, a third controller, a fourth motor and a fourth controller, and the third controller is in communication connection with the fourth controller; a whole vehicle gateway comprises a first communication line and a second communication line which are in communication connection with each other; a power supply assembly comprises a first power supply and a second power supply; an ignition assembly comprises a first ignition switch and a second ignition switch. The device has the beneficial effect of high steering safety.

Description

technical field [0001] The invention relates to the technical field of steering-by-wire, in particular to a steering-by-wire device with redundant functions and a control method. Background technique [0002] The steer-by-wire device is widely used because of its good steering comfort, compact structure, and its angular transmission ratio can better adapt to the driving habits of different drivers. Among them, in order to avoid the failure of the steering ability of the entire steering-by-wire device and the failure of the driver's sense of road due to the failure of the steering-by-wire device, it is usually necessary to set a redundant mechanism in the steering-by-wire device to make it redundant. function, thus being able to provide an alternate steering function to improve steering safety. [0003] However, in current steer-by-wire devices, only the motors and controllers in the steer-by-wire device are usually redundantly set, and the redundancy function is relatively ...

AI Technical Summary

Problems solved by technology

[0003]However, in the current steer-by-wire devices, only the motors and controllers in the steer-by-wire devices are usually redundantly set, and the redundancy function is relatively simple, which cannot Fully meet the redundancy requirements in the steering process, resulting in low steering safety

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