Aligning and driving device and method for steering wheel

Abstract

The invention belongs to the technical field of automobile driving simulation and particularly relates to an aligning and driving device and an aligning and driving method for a steering wheel on a steering wheel simulation platform. The device comprises the steering wheel, a shaft and a singlechip. A torque sensor is arranged on the shaft at the bottom of the steering wheel. The end of the shaft is connected with a stepping motor and an encoder, the torque sensor and the encoder are connected with the singlechip, the stepping motor is connected with the singlechip through a driving chip, the singlechip is further connected with a communication chip, and the communication chip is connected with an upper computer. The method comprises the steps of measuring the corner of the steering wheel by the encoder; receiving and parsing the command by the singlechip when the upper computer sends the command, returning the corner of the steering wheel to the upper computer, controlling the rotary direction, rotary torque, rotary speed, and rotary angle of the stepping motor; and driving the steering wheel to align or drive or reset by the stepping motor. The rotary torque, the rotary speed and the rotary angle of the steering angle of the aligning and driving device adopt digital open-loop control and is high in control precision and reliability, simple in structure and low in cost.

Description

technical field [0001] The invention belongs to the technical field of automobile driving simulation, and in particular relates to a steering wheel return and driving device and method in a steering wheel simulation platform. Background technique [0002] During car driving training, limited by factors such as venues and weather, it affects people's learning of driving skills by driving cars in the field. The car simulation cab avoids the above-mentioned effects, making the process of learning car driving skills indoors. [0003] As far as the direction control of the car simulator is concerned, the steering wheel simulator should realize the manual driving mode and the automatic driving mode. Switch from driving mode to manual driving mode. [0004] At present, the steering wheel simulator is generally composed of a controller, a driving motor, a friction pair, a rotation angle sensor, etc., and controls the driving motor and friction pair to realize the steering wheel bac...

AI Technical Summary

Problems solved by technology

[0005] 1) Since the rotation speed of the driving motor is related to the torque, it is necessary to use the friction pair to realize various rotation speeds of the steering wheel and adapt to various torque conditions, and the structure is complex;

[0006] 2) The rotation angle of the existing steering wheel simulator must be controlled in a closed-loop manner, and there is a large dynamic error in the steering wheel returning process, and the control accuracy is low;

[0007] 3) Due to the high speed of the driving motor, a deceleration mechanism needs to be added, which further increases the complexity of the structure, and due to the high speed, it cannot simulate the torque of the steering wheel to maintain a certain value and self-lock at rest;

[0008] 4. The existing steering wheel simulator is easy to damage components during forward rotation and reverse rotation, with short service life and high cost of use

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