New energy vehicle on-board charger hardware-in-the-loop testing equipment and method

Abstract

The invention relates to a hardware-in-loop test device and method for a vehicle-mounted charger control device of a new energy automobile. The hardware-in-loop test device comprises a test upper computer interface, an LABCAR system, the vehicle-mounted charger control device and a battery management system. The test method comprises the steps that a tester conducts normal function test and abnormal test on alternating current charging through the test upper computer interface, the test upper computer interface sends test content to the LABCAR system through a network cable, and the LABCAR system sends an electrical signal required by the vehicle-mounted charger control device according to an instruction of the tester, collects an electrical control instruction sent by the vehicle-mounted charger control device to conduct closed-loop control, and meanwhile feeds the electrical control instruction back to the test upper computer interface for fault check. The hardware-in-loop test device and method have the advantages that alternating current function test can be conducted on the vehicle-mounted charger control device, abnormal test and fault simulation can be conducted on the whole alternating current charging process, and whether the vehicle-mounted charger control device can correctly complete fault detection and fault handling is detected.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a hardware-in-the-loop testing device and testing method for an on-board charger of a new energy vehicle based on a household charging method. Background technique [0002] New energy vehicles are one of the main ways to solve the problems of vehicle exhaust pollution and oil energy shortage. However, due to the impact of power battery energy storage density, new energy vehicles cannot reach the level of traditional vehicles in terms of power and cruising range at this stage. , so it is very necessary to charge new energy vehicles externally to meet the driving needs of drivers. Since the charging of new energy vehicles requires the power supply equipment to continuously output a large power, usually a special power supply device, that is, a charging pile, is required to provide a charging interface for the electric vehicle. When we are at home, if we can The interface is a ve...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hardware-in-the-loop test device and test method for a new energy vehicle on-board charger based on a household charging method, so as to overcome the long test cycle and large test power consumption of the current existing AC charging test technology and method. And it is impossible to simulate the failure of the AC charging process. Once an abnormality occurs during the charging process, it will cause damage to the vehicle.

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