Vehicle energy distribution method and device

An energy distribution and energy technology, applied in vehicle energy storage, vehicle components, transportation and packaging, etc., can solve problems affecting the performance of power batteries, failure to start fuel cells, over-discharge of power batteries, etc.

Inactive Publication Date: 2021-02-23
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the starting process of the fuel cell, the components of its circuit need to be continuously powered, which will cause the fuel cell to fail to start when the available energy of the power battery drops to the limit of the reserved energy, which bring

Method used

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  • Vehicle energy distribution method and device
  • Vehicle energy distribution method and device
  • Vehicle energy distribution method and device

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Embodiment Construction

[0029] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0030] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0031] figure 1 It is a flowchart of a vehicle energy distribution method for a vehicle provided by an embodiment of the present invention. Such as figure 1 As shown, the vehicle includes a fuel cell, the method comprising:

[0032] Step S11, detecting the starting state of the fuel cell;

[0033] For example, the starting state of the fuel cell is divided into activated and non-activated. There are different processing methods for the activated fuel cell and the unactivated fuel cell, which will be described in detail below.

[0034] Step S12, when it is detected that the fuel cell is not started, according to the energy consumed by the accessories required for starting the fu...

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PUM

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Abstract

The invention relates to the technical field of new energy vehicles, and provides a vehicle energy distribution method and device. The vehicle comprises a fuel cell. The vehicle energy distribution method comprises the steps that the starting state of the fuel cell is detected; when it is detected that the fuel cell is not started, distributable energy is obtained according to the energy consumedby the accessories needed by starting of the fuel cell, the maximum available energy of the power cell, the energy reserved for over-discharge prevention of the power cell and the available energy ofthe fuel cell; and the whole vehicle energy distribution is executed according to the distributable energy. According to the invention, enough energy can be provided for starting of the fuel cell, andthe power cell is prevented from being over-discharged.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a vehicle energy distribution method and device. Background technique [0002] At present, new energy vehicles reserve a part of the power battery energy to prevent the power battery from being over-discharged, and then distribute it based on the maximum available energy that the current battery management system (BMS) can provide. However, during the starting process of the fuel cell, the components of its circuit need to be continuously powered, which will cause the fuel cell to fail to start when the available energy of the power battery drops to the limit of the reserved energy, which brings a great risk to the vehicle start. , It is also possible that all the remaining energy of the power battery will be consumed during the start-up process, causing the power battery to be over-discharged and affecting the performance and service life of the power battery. Cont...

Claims

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Application Information

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IPC IPC(8): B60L58/31B60L58/14B60L58/40
CPCB60L58/31B60L58/14B60L58/40Y02T10/70Y02T90/40
Inventor 吴麦青张南闫岗宋丹丹卢娜王胜博
Owner GREAT WALL MOTOR CO LTD
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