Electric vehicle high-pressure electrical failure dynamic simulation test system and method

Abstract

The invention provides an electric vehicle high-pressure electrical failure dynamic simulation test system which comprises a failure command output unit which is used for sending a failure command, multiple failure injection units, multiple signal detection units, a signal record wave unit, a data analysis processing unit, a data output unit, an energy simulation unit and a working condition simulation unit. The multiple failure injection units are injected simultaneously or in a delay mode according to the failure command. The multiple signal detection units are used for collecting electrical parameters and non-electrical parameters of a to-be-detected position. The signal record wave unit is used for recording electrical parameters and non-electrical parameters of the multiple detecting units on multiple failure points in the whole process of failure positions in real time. The data analysis processing unit is used for conducting analysis processing of recorded electrical parameters and non-electrical parameters. The data output units are used for transmitting or printing or outputting data or graphics in the data analysis processing unit. The energy simulation unit is used for simulating fuel cell stack to supply direct current by a program control unit (PCU) controller. The working condition simulation unit is used for simulating actual working conditions of a vehicle. The electric vehicle high-pressure electrical failure dynamic simulation test system is capable of meeting a whole vehicle electrical failure dynamic simulation test of all electrically driven vehicles.

Description

technical field [0001] The invention relates to a dynamic simulation test system, in particular to a dynamic simulation test system and method for high-voltage electrical faults of electric vehicles. Background technique [0002] At present, in new energy vehicles, people pay more attention to motors, batteries and electronic control technology, and in practical applications, there is also a very important component system - high-voltage electrical system. In electric vehicles, the role of the high-voltage electrical system is to connect fuel cells, power electronic components, components, and motors together. Compared with traditional fuel vehicles, new energy vehicles are mildly mixed (12V or 14V) battery), moderate hybrid (voltage avenue 120V, or even higher to 144V), full hybrid (battery voltage between 288V-360V), and in the process of the development of all-electric vehicles, the voltage also increases step by step, making high-voltage electrical The system faces many...

AI Technical Summary

Problems solved by technology

Compared with the traditional vehicle electrical system, the voltage level and carrying current of new energy electric vehicles have been greatly improved. Therefore, the correctness and reliability of the high-voltage system design of electric vehicles are very important for driving safety. At present, the automotive industry has not matured Experimental means to do experimental verification in this regard

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