Hydrogen energy automobile multi-pre-charging PDU system and pre-charging method thereof

A hydrogen energy and pre-charging technology, which is applied to electric vehicles, vehicle parts, hydrogen transportation technology, etc., can solve the problems of prolonged pre-charging time and high-voltage load, so as to reduce energy loss, reduce failure rate, and shorten pre-charging time. The effect of the time required

Pending Publication Date: 2021-02-12
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since hydrogen fuel cell vehicles have many more high-voltage devices than traditional new energy vehicles, resulting in more high-voltage loads in the circuit, the traditional pre-charging circuit design will greatly lengthen the pre-charging time

Method used

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  • Hydrogen energy automobile multi-pre-charging PDU system and pre-charging method thereof
  • Hydrogen energy automobile multi-pre-charging PDU system and pre-charging method thereof
  • Hydrogen energy automobile multi-pre-charging PDU system and pre-charging method thereof

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Embodiment Construction

[0051] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0052] Such as figure 1 As shown, the present invention provides a hydrogen energy vehicle multi-precharge PDU system, including:

[0053] The power module 100 includes a power contactor 110 and a power battery 120, the power contactor 110 is connected to a power supply, and the power battery 120 is connected to the power contactor 110;

[0054] It should be noted that the power battery 120 provides energy for the pre-charging system and the pre-charging module; the power contactor 110 is to prevent the power battery from being directly connected to the outside, to ensure high-voltage safety and reduce the risk of electric shock.

[0055] Pre-charging module 200, which includes an auxiliary high-voltage system pre-charging module, a hydrogen fuel cell high-voltage system pre-charging ...

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Abstract

The invention discloses a hydrogen energy automobile multi-pre-charging PDU system comprising a power supply module which comprises a power supply contactor and a power battery, the power supply contactor is connected with a power supply, and the power battery is connected with the power supply contactor; a pre-charging module which comprises an auxiliary high-voltage system pre-charging module, ahydrogen fuel cell high-voltage system pre-charging module and a chassis driving high-voltage system pre-charging module; and a pre-charging system which comprises an auxiliary high-voltage system, ahydrogen fuel cell high-voltage system and a chassis driving high-voltage system. The invention discloses a pre-charging method of the hydrogen energy automobile multi-pre-charging PDU system. The pre-charging method comprises the steps that pre-charging of a high-voltage system is assisted; a hydrogen fuel cell high-voltage system is pre-charged; and the chassis driving high-voltage system is pre-charged. According to the invention, the pre-charging time can be shortened, the pre-charging waiting time is reduced, the structure of the high-voltage power distribution system can be optimized, and the failure rate is reduced.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles. More specifically, the present invention relates to a hydrogen energy vehicle multi-precharge PDU system and a precharge method thereof. Background technique [0002] With the promotion and popularization of hydrogen fueled new energy vehicles, more and more automobile companies have begun to pay attention to the research and development of hydrogen fuel cell new energy vehicles. Since hydrogen fuel cell vehicles have many more high-voltage devices than traditional new energy vehicles, resulting in more high-voltage loads in the circuit, the traditional pre-charging circuit design will greatly lengthen the pre-charging time. Contents of the invention [0003] It is an object of the present invention to solve at least the above-mentioned problems and to provide at least the advantages which will be described later. [0004] Another purpose of the present invention is to provide a m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L1/00B60L50/70
CPCB60L1/00B60L3/00B60L50/70Y02T90/40
Inventor 程飞郝义国
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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