Virtual-real combined test method developed for automobile body control

Abstract

The invention discloses a virtual-real combined test method developed for automobile body control. The method comprises the following steps that: (1) a body control system is set as two major parts: a real part and a virtual part; (2) when development and test are performed, an excitation module, an ECU (electronic control unit) module and a body component module are selected from the real part and the virtual part to form a complete body control system to be tested; (3) the excitation module transmits test excitation to record the test excitation in an excitation log file; (4) the ECU module runs a body control program, receives the test excitation and controls the body component module to receive and respond, wherein the response record is recorded in a response log file; and (5) the response log and the excitation log are compared; and in the case of deviation, corresponding reasons are analyzed, and the system design is perfected by modifying and debugging corresponding modules. The method disclosed by the invention has the advantages of simple principle, short development and test period, low cost, good expandability, high flexibility and the like.

Description

technical field [0001] The invention mainly relates to the field of automobile body development, in particular to a virtual-actual combination test method suitable for automobile body control development. Background technique [0002] The "body control system" is mainly used to improve driving convenience and riding comfort. The system covers a wide range, including lighting control, door control, seat control, climate (air conditioning) control, instrument panel display, etc.; thus It can be seen that the body control module is a system including a large number of control objects. [0003] The current body control module development mainly has the following problems: [0004] 1) closed system; [0005] Most of the body control modules are independently developed by various manufacturers. Since there is no unified standard, the platforms do not have openness and versatility. At the same time, because the system is closed, product maintenance and repair become complicated...

AI Technical Summary

Problems solved by technology

[0005] Most of the body control modules are independently developed by various manufacturers. Since there is no unified standard, the platforms are not open and universal

At the same time, because the system is closed, product maintenance and repair become complicated, which is not conducive to the integration of superior resources and the development of the industry

[0006] 2) Poor scalability;

[0007] Once the body control module is developed, only fixed body equipment can be used. If it is necessary to expand new functions and introduce new body components, the ECU and ECU programs need to be redesigned, which causes a certain degree of waste of resources

Also, it becomes difficult to expand and upgrade some functions by updating the ECU program

[0008] 3) Difficulties in product update development and testing;

However, the use of traditional testing methods for embedded software testing has great drawbacks: traditional testing methods often require building a complete vehicle body control system, and running the developed ECU program in it for testing. to test the functional integrity and reliability of the system

However, on the one hand, the incentives of actual control often cannot cover the requirements of complete software testing, which requires a combination of virtual and real to virtualize some modules in the entire body parts, so as to cover them in a programmable mode conveniently and quickly. Extensive, repeatable, customizable test cases

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