EPS torque and rotating angle sensor detection device

Abstract

The invention discloses an EPS torque and rotating angle sensor detection device. The device mainly comprises a single-chip microcomputer and the like, wherein the output end of a to-be-detected sensor is connected with the input end of a duty ratio measurement module through a special wire harness, the output end of the duty ratio measurement module is connected with the input end of a processormodule, the output end of the processor module is connected with the input end of a data display module, the output end of the data display module is connected with a liquid crystal display screen, one path of the output end of a power module is connected with the to-be-detected sensor and the single-chip microcomputer through a special wire harness, and the other path of the output end of the power module is connected with the liquid crystal display screen. The device can be used for EPS assembly sensor problem detection and analysis as well as torque and rotating angle signal collection, torque signal offset analysis and rotating angle signal matching degree automatic calculation and analysis in the steering sensor manual assembling process; and it is not needed to depend on an oscilloscope to perform signal collection and measurement or analyze calculation data through a computer, the device has the advantages of being simple in structure, compact in appearance, convenient to carry,convenient to use and low in cost, and detection efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of electric power steering systems, in particular to an EPS torque angle sensor detection device. Background technique [0002] An Electric Power Steering System (EPS for short) generally includes a controller, a motor, a steering column, a sensor, a gearbox, a steering gear, and the like. According to the vehicle speed signal, the steering wheel torque and rotation angle signal collected by the torque angle sensor, the controller controls the power assist motor to output the torque of the corresponding magnitude and direction, so as to realize the functions of vehicle steering with speed assist and active return of the steering wheel. [0003] Whether the signal of the torque angle sensor is qualified or not will directly affect whether the EPS can work normally. The HELLA integrated torque angle sensor is a widely used steering sensor. The sensor consists of two parts, the body and the rotor, which need to be insta...

AI Technical Summary

Problems solved by technology

This method does not require expensive equipment, but it needs to input the signal values ​​collected by the oscilloscope into the computer software many times to confirm whether the matching degree meets the requirements of use, so the efficiency is very low

[0005] In short, under the existing technical solutions, no matter in the detection and analysis of sensor problems in EPS products, or in the manual assembly of sensors, tools such as oscilloscopes and computers are required, which are not portable and efficient, and the cost is relatively high.

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