A test device based on electronic control unit

Abstract

The invention discloses a testing device based on an electronic control unit, which is used for simulating a vehicle-mounted system and simulating corresponding trigger signals according to input signals to test the electronic control unit. The device of the invention comprises a bus simulation unit, a switching signal input circuit, an analog signal input circuit, and an output circuit group simulation unit, wherein the bus simulation unit is used for simulating communication of the vehicle-mounted system; the switching signal input circuit is connected with the bus simulation unit and is used for receiving input signals and converting the input signals to analog switching signal trigger signals and sending the analog switching signal trigger signals to the electronic control unit; the analog signal input circuit is connected with the bus simulation unit and used for receiving the input signals, converting the input signals to the analog signal trigger signals and sending the analog signal trigger signals to the electronic control unit; and the output circuit group simulation unit is connected with the bus simulation unit and is used for receiving control signals sent by the electronic control unit and simulating corresponding display according to the control signals. The device can be used in multiple ECU development and testing processes, and has general simulation performance.

Description

technical field [0001] The invention relates to the field of motor vehicle testing, in particular to a testing device based on an electronic control unit (ECU, Electronic Control Unit). Background technique [0002] Automotive electronic control unit is referred to as electronic control unit, automotive electronic control unit or integrated circuit control unit, multi-channel control device, etc. It is a control device composed of integrated circuits used to implement a series of functions such as data analysis, processing and sending. It is widely used in automobiles at present, and the integration level is getting higher and higher. [0003] Due to the harsh and complex environment of automotive ECUs, in addition to environmental factors such as humidity, temperature, vibration, shock, dust, sand, water, oil, and fluctuating voltage, the electromagnetic environment is a problem that cannot be ignored. In order to make the ECU adapt to the harsh electromagnetic environmen...

AI Technical Summary

Problems solved by technology

The disadvantage of purely manual testing equipment is that it is inefficient to use, and a lot of manpower is required for complex logic testing

For some simple tests, the automatic test equipment needs to borrow the host computer software to write the program, which wastes the manpower of the technicians.

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