High-voltage output closed-loop control device, method and equipment for safety testing equipment

Abstract

The invention provides a high-voltage output closed-loop control device, method and equipment for safety testing equipment, and the high-voltage output closed-loop control device comprises the following parts of a separate switching module provided between a switching power supply module and a high-voltage amplification output module and used to control the power supply of the switching power supply module to the high-voltage amplification output module; a voltage reduction module arranged between the high-voltage amplification output module and a high-voltage output terminal and used to convert a high voltage output from the high-voltage amplification output module into a low voltage; and a comparison module connected to the voltage reduction module and used to compare the low-voltage value output from the voltage reduction module with a set value, and control the separate switching module according to the comparison result. The invention converts the open-loop control of the high-voltage output of the original safety equipment into a closed-loop control to improve the control strategy, fault feedback mechanisms such as fault code submission and fault display are added and fault message prompts are increased to optimize human-computer interaction effects.

Description

technical field [0001] The invention belongs to the field of safety testing of new energy vehicles, and in particular relates to a high-voltage output closed-loop control device, a closed-loop control method, and safety testing equipment for new energy vehicle safety testing equipment. Background technique [0002] At present, the development of new energy vehicles is in the ascendant. Regarding the safety of electric vehicles, the legal requirement is to ensure the personal and property safety of final consumers when using the product, and the product can only be sold on the market after meeting the testing requirements of the law. Today, with high consumer awareness, every manufacturer of electrical and electronic products must do its best to ensure product safety. Every product must be designed as far as possible to prevent the user from getting an electric shock, even if the user makes a mistake. A pure electric vehicle is a special electrical product, especially a pur...

AI Technical Summary

Problems solved by technology

The existing new energy safety test equipment will output a high voltage of 1.5KV when performing the AC withstand voltage test. Once the high voltage is abnormal (such as an instantaneous high voltage of 8KV), it will control the high voltage control unit of the new energy vehicle. Cause irreparable destructive effects (breakdown), and safety inspection is a must for the production of new energy vehicles, which may be mistaken for a component problem of the high-voltage control unit, resulting in repeated failures of multiple new energy vehicles , a waste of manpower and material resources, affecting production efficiency

[0005] Existing test equipment mainly has the problem of no detection circuit for high-voltage output, and cannot realize closed-loop control of high-voltage output

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