Fault injection box for function safety experiment of pure electric vehicle control unit

Abstract

The invention relates to a fault injection box for a function safety experiment of a pure electric vehicle control unit. The fault injection box comprises a box body, four pulleys are mounted at fourcorners of the lower end of the box body respectively so that the box body can be moved conveniently, and three detachable fixing supporting plates are mounted in the box body and used for mounting and fixing a wiring harness switching circuit board and containing testing sample parts; an aluminium plate which fixes a fault injection circuit board and an aluminium plate which fixes a load circuitboard are fixedly arranged on the front surface of the box body, the fault injection circuit board and the load circuit board are embedded in the aluminium plate which fixes the fault injection circuit board and the aluminium plate which fixes the load circuit board respectively, and a fixed power supply is arranged on the bottom of the box body and supplies power for the fault injection box and the testing sample parts. The fault injection box has the advantages that a load circuit is provided with multiple sets of testing circuits, the switch combination is flexible and variable, and the fault injection box is convenient to operate.

Description

Technical field [0001] The invention belongs to the technical field of new energy vehicles, and particularly relates to a fault injection box used for functional safety experiments of a pure electric vehicle controller. Background technique [0002] With the development of the new energy vehicle industry in recent years, the market has increasingly strict requirements for new energy vehicles, and more and more attention is paid to functional safety. Continuously improving the functional safety performance of new energy vehicles will be one of the developments in the industry. Important task. [0003] As one of the core components of new energy vehicles, vehicle controllers have an important position beyond doubt. Whether it is body control or functional safety, its performance directly affects the stability and safety of the vehicle system. These properties are also the key guarantee for the safe driving of pure electric vehicles and the efficient operation of their components. ...

AI Technical Summary

Problems solved by technology

[0008] Although the above-mentioned prior art can realize partial fault testing functions, it is still unable to realize the injection of various types of faults more conveniently. If the fault injection is completely implemented through manual wiring, it will be extremely time-consuming and manpower-consuming, and it is also prone to operational errors

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