Automobile body control function automatic test apparatus and method thereof

Abstract

The invention provides an automobile body control function automatic test apparatus and a method thereof, mainly solving problems that a hand-operated test has large time consumption, low efficiency and poor repeatability and special control logics and time sequences can not be tested. The apparatus is composed of a host computer, a signal conditioning plate, a tested controller and a load box. The host computer is connected with the signal conditioning plate through an output interface of the host computer. An output signal is processed by the signal conditioning plate and is sent to the tested controller. A CAN (Controller Area Network) interface and an LIN (Local Interconnect Network) interface of the host computer connect with the tested controller, and send and receive CAN and LIN bus information needed by the test controller. A driving output of the tested controller connects with the load box, and sends a driving signal generated by connection to an input interface of the host computer after processing of the signal by the signal conditioning plate. The apparatus in the invention has the characteristics of clear structure, low cost, and reliable performance, and can carry out a comprehensive automatic test on a control function of the controller so as to eliminate potential safety hazard possibly brought by logic and sequential errors.

Description

Technical field [0001] The invention belongs to the technical field of automobile electronic control, and particularly relates to an automatic test technology of automobile body control functions. Background technique [0002] In order to increase the safety and comfort of the car, many car bodies are equipped with one or more controllers to control the exterior lights, interior lights, wipers, central control door locks, power windows, rearview mirrors, etc. Load, this type of controller is usually called a body controller, which is characterized by multiple input signals, multiple driving loads, and complex control functions (including control logic and timing). Therefore, a large part of the work in the development of the body controller It is a test of control logic and timing. The development of body controllers in our country is still in its infancy, and the existing methods are all based on manual tests on experimental benches. Due to the complexity of control functions ...

AI Technical Summary

Problems solved by technology

Due to the complexity of the control function and the limitation of human operation, manual testing takes a long time, is inefficient, and has poor repeatability, and some special control logic and timing cannot be tested, which will lead to potential safety hazards in the developed controller

Images