Electronic throttle off-line testing system

Abstract

The invention provides an electronic throttle off-line testing system, comprising an upper computer and a programmable logic controller. The upper computer is a host computer, the host computer is provided with electronic throttle off-line testing software, and the programmable logic controller comprises a motion control module and an analog quantity control module. The host computer is used for transmitting a test command to the programmable logic controller; the motion control module sends a motor control signal to control a DC motor of an electronic throttle; and the analog quantity controlmodule simulates motor drive control quantities under various test conditions, collects a first valve block position sensor signal, a second valve block position sensor signal and a motor drive voltage signal of the electronic throttle, and feeds back the collected signals to the host computer software, and the host computer software is used to determine whether the electronic throttle passes through off-line test verification. The system is used for testing various performances of electronic throttles and can provide various operating conditions for testing the electronic throttle to be tested.

Description

technical field [0001] The invention belongs to the technical field of test systems, in particular to an electronic throttle off-line test system. Background technique [0002] The electronic throttle body is one of the important components of the automobile engine control system, and its design and manufacturing quality directly affect the entire engine control system. The electric throttle controls the motor work of the throttle by receiving the motor drive signal sent by the ECU electronic control unit (engine controller). Since the control of the electric throttle is a high-precision, high-safety operation, it is necessary to conduct detailed tests on the performance of the electric throttle after production is off the assembly line to ensure that the parameters of the electric throttle are within the design range. At present, the electric throttle testing methods on the market are usually simple manual testing. To truly ensure the supply quality of the electric throttl...

AI Technical Summary

Problems solved by technology

At present, the electric throttle testing methods on the market are usually simple manual testing. To truly ensure the supply quality of the electric throttle, it is necessary to eliminate manual interference and design a highly automated off-line testing system.

Images