A voltage feedback system for automotive electronic throttle motor performance test

Abstract

The invention relates to a voltage feedback system for the performance test of an automobile electronic throttle motor, comprising: a voltage polarity conversion part, which is used to convert the voltage signal output by the terminal of the tested motor with frequent polarity switching into a voltage signal with a fixed polarity and a period equal to The DC voltage signal with the same rotation cycle of the motor under test; the input terminal of the voltage divider part is connected to the output terminal of the voltage polarity conversion part, which is used to ensure the voltage amplitude provided to the remote sensing port of the program-controlled power supply and the voltage detection port of the measurement and control system. The voltage amplitude is synchronized with the working voltage at both ends of the motor winding under test in real time. The invention can detect the working voltage of the motor winding of the motor performance measurement and control system, and can also perform remote induction feedback on the DC flow control precision stabilized voltage power supply.

Description

technical field [0001] The invention relates to the technical field of mechanics and electronics, in particular to a voltage feedback system for performance testing of an automobile electronic throttle motor. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, the number of motor vehicles in my country is also increasing year by year. Electronic throttle ("ETC" for short) is a system component that converts the driver's "acceleration" action into torque demand input through the electronic accelerator pedal. It replaces the traditional method of controlling the opening of the throttle with a mechanical cable. The throttle opening can be adjusted in real time according to the command of the control system, which makes it easier to realize stable control of idle speed and cruise control. Therefore, the performance of ETC directly affects the driving safety and driving experience of the car, and th...

AI Technical Summary

Problems solved by technology

Due to the large operating current of the ETC motor and the long power supply line in the test bench during the performance test of the ETC motor, the winding power supply voltage of the tested motor will drop, which will affect the accuracy of the test results.

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