Autonomous vehicle steering control system

Abstract

The invention relates to an autonomous vehicle steering control system, comprising rotation speed sensors, a main angle sensor, auxiliary angle sensors, a steering drive mechanism, a transmission shaft and a controller. The at least two rotation speed sensors and the at least two auxiliary angle sensors are mounted on a wheel axle of vehicle steering wheels. The main angle sensor is connected witha vehicle steering wheel shaft and a steering drive mechanism. The steering drive mechanism is mounted on a vehicle frame and is connected with a vehicle steering drive mechanism and the vehicle steering wheel shaft through a transmission shaft. The controller is installed on the vehicle frame. A use method of the autonomous vehicle steering control system comprises three steps: steering signal acquisition, steering drive and steering correction and the like. The method has the advantages of simple structure, flexibility and convenience in use, convenience in installation and replacement, high detection accuracy and high automation degree of operation, and greatly improves the reliability, convenience and operation accuracy of the steering operation of the vehicle.

Description

technical field [0001] The invention relates to an automatic driving system, belonging to the technical field of automatic driving vehicles. Background technique [0002] At present, in vehicle operation, the steering system is one of the important systems to ensure the reliability of vehicle operation. At present, in order to improve the flexibility and convenience of vehicle steering operation, the steering wheel usually operates the special steering drive auxiliary mechanism, and then the steering wheel is operated by the steering wheel. The steering drive auxiliary mechanism drives the wheels to turn. Although this structure can meet the needs of use, but during the steering operation, due to the long transmission process of mechanical equipment, there is a certain deviation between the steering wheel driving angle and the actual deflection angle of the wheels. Coupled with factors such as different rotational speeds and different road resistances in the actual operation...

AI Technical Summary

Problems solved by technology

[0002] At present, in vehicle operation, the steering system is one of the important systems to ensure the reliability of vehicle operation. At present, in order to improve the flexibility and convenience of vehicle steering operation, the steering wheel usually operates the special steering drive auxiliary mechanism, and then the The steering drive auxiliary mechanism drives the wheels to turn. Although this structure can meet the needs of use, but during the steering operation, due to the long transmission process of the mechanical equipment, there is a certain deviation between the steering wheel driving angle and the actual deflection angle of the wheels. Coupled with factors such as different rotational speeds and different road surface resistances in the actual operation of the wheels, the deviation between the wheel steering and the direction steering operation is further increased, which seriously threatens the safety and reliability of vehicle operation and operation. , the current steering drive auxiliary mechanism often adopts any one of the electric motor drive system or hydraulic drive system, so the current vehicle steering system has poor anti-fault performance during operation, and it is easy to cause the vehicle to fail when the steering drive auxiliary mechanism fails. The steering is out of control, which seriously threatens the safety of the vehicle, and the current steering auxiliary mechanism also lacks effective transformation data detection and feedback capabilities, which also leads to the inability of the current driving auxiliary mechanism to effectively communicate with the driving computer system. Therefore, In response to this problem, it is necessary to develop a vehicle steering deviation correction device to meet the needs of actual use

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