Control method, device, electronic device and storage medium of high voltage system

Abstract

The present application provides a high-voltage system control method, device, electronic equipment, and storage medium, wherein, in the high-voltage system control method, when a power-on command is received, the voltage converter is controlled to supply power to target components. Then detect whether the voltage of the stack is greater than the voltage of the voltage converter. If it is detected that the voltage of the electric stack is greater than the voltage of the voltage converter, the voltage converter is stopped to supply power to the target component, and the electric stack is switched to supply power to the target component. When the power-off command is received, the target component is controlled to enter the shutdown mode, and the electric stack is controlled to enter the discharge mode. It is detected whether the difference between the voltage of the stack and the voltage of the voltage converter is smaller than a preset threshold. If it is detected that the difference between the voltage of the stack and the voltage of the voltage converter is less than a preset threshold, the target component is controlled to stop. When the stack discharge is completed, the voltage converter is controlled to shut down.

Description

technical field [0001] The present application relates to the technical field of system control, and in particular to a control method, device, electronic equipment and storage medium of a high-voltage system. Background technique [0002] With the development of science and technology, fuel cell vehicles have gradually entered the public's field of vision. Fuel cell vehicles mainly use hydrogen as fuel, and use the electrochemical reaction of hydrogen and oxygen to generate electricity as a power source. The stack in a fuel cell vehicle is composed of multiple fuel cell cells stacked in series. The fuel cell stack is the place where the electrochemical reaction occurs and is the core part of the fuel cell system. [0003] The existing fuel cell engine high-voltage system design is relatively simple. The power supply of high-voltage components is obtained through various forms. In essence, the power is directly obtained from the high-voltage system of the vehicle. During th...

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Problems solved by technology

[0004] In view of this, the present application provides a high-voltage system control method, device, electronic equipment and storage medium to solve the problem of the fuel cell engine in the prior art due to the low working efficiency of the DC / DC converter, which leads to the failure of the entire high-voltage system. The problem of low energy utilization

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