Automatic ABSECU detection device

Abstract

The invention relates to an automatic ABSECU detection device of an automobile, which comprises a valve abnormal simulation module, a valve driving abnormal simulation module, a sensor abnormal simulation module, a wheel speed simulation module, a power supply abnormal simulation module, a diagnosis module, a power supply module, a single chip microcomputer system and a personal computer (PC). Detection control program is conducted on the PC, indications are transmitted to the single chip microcomputer system through a serial port to control the abnormal simulation modules to work and simulate various working conditions of an ABSECU, the single chip microcomputer system collects voltage states at a valve output port and a warning lamp output port of the ABSECU and transmits the states to the PC, and the PC directly conducts information reading and control on the ABSECU through the diagnosis module and judges whether the ABSECU passes the detection or not according to the port voltage states and the diagnosis communication response to achieve full-aspect detection of the quality of the ABSECU. The automatic ABSECU detection device of the automobile can quickly and comprehensively conduct delivery quality detection on the ABSECU.

Description

technical field [0001] The invention relates to an automatic detection device for an automobile anti-lock braking controller (hereinafter referred to as ABS ECU), which belongs to the technical field of quality detection of automobile electronics and electrical equipment. Background technique [0002] ABS is a key safety component of the vehicle chassis system. ABS ECU needs to undergo strict inspection before leaving the factory, so as to screen out unqualified ECUs caused by hidden design hazards, circuit board manufacturing defects, unqualified electronic components, and unqualified welding. [0003] The existing ABS ECU factory inspection method is: connect the ECU to the sensor, valve, power supply and warning light through the ABS wiring harness, use the self-test action when the ECU is powered on to determine whether the ECU can start and run, and then pass an adjustable speed ring gear The wheel speed sensor is excited to simulate the wheel speed signal during emerge...

AI Technical Summary

Problems solved by technology

The existing method is completely manually operated, the detection cycle is long, and the production efficiency is low. In addition, because there is no comprehensive detection of ECU abnormal processing (such as sensor, valve, power supply abnormality, etc.), wheel speed measurement circuit, and valve drive control circuit, resulting in The factory ECU may have hidden dangers in reliability

Especially when the ABS ECU is supplied in large quantities, the problem is particularly prominent

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