Sensor centering calibration device of electric power steering system

Abstract

The invention discloses a sensor centering calibration device of an electric power steering system, which comprises a locking unit, an input transmission unit, an output support unit and a calibrationunit, wherein the locking unit is used for clamping and fixing an EPS system; the input transmission unit is used for inputting torque to the input end of the EPS system; the output support unit is used for locking or releasing the output end of the EPS system; the calibration unit is used for calibrating the sensor of the EPS system. According to the invention, a vertical structure is adopted, the locking unit, the input transmission unit and the output support unit are independently modularized, matching construction can be carried out according to the model of the EPS system, and the application range of the calibration device is increased. The whole system can easily carry the EPS system and match and connect each coupling part, the matching and connecting efficiency is high, and thecalibration operation efficiency is improved. The input transmission unit is ingenious in structure and meets the functions of stable matching and connection with the input end of the EPS system, reliable transmission and the like. And the output support unit is reliably connected with the EPS system, and a limiting mechanism can meet the requirements of releasing and locking the output end of theEPS system.

Description

technical field [0001] The invention relates to sensor centering calibration equipment for an electric power steering system, and belongs to the technical field of EPS system calibration equipment. Background technique [0002] Electric Power Steering (EPS) is a power steering system that directly relies on the motor to provide auxiliary torque. Compared with the traditional hydraulic power steering system HPS (Hydraulic PowerSteering), the EPS system has many advantages. EPS is mainly composed of torque sensor, vehicle speed sensor, electric motor, deceleration mechanism and electronic control unit (ECU). [0003] The working stability and handling characteristics of the electric power steering system are related to the safety of driving and the performance of the whole vehicle. Therefore, it is necessary to effectively detect various performances of the steering gear and calibrate the torque sensor. [0004] Traditional calibration equipment is generally a horizontal stru...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, aiming at the problems that the traditional calibration equipment is difficult to carry the EPS system and the calibration operation efficiency is low, a sensor alignment calibration equipment for the electric power steering system is proposed

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