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Fuel cell vehicle thermal management method

A fuel cell and thermal management technology, which is used in fuel cells, power system fuel cells, electric vehicles, etc.

Active Publication Date: 2019-07-02
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, this application proposes a thermal management method for fuel cell vehicles aimed at how to solve the problems of rapid start-up of fuel cells and heat preservation of power batteries

Method used

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Embodiment Construction

[0071] In order to make the purpose, technical solution and advantages of the present application clearer, the fuel cell vehicle thermal management method of the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0072] see figure 1 The invention provides a heat management system for a fuel cell vehicle. The fuel cell vehicle thermal management system includes: a fuel cell subsystem 100 , a power battery subsystem 200 and a heat exchange control subsystem 400 .

[0073] The fuel cell subsystem 100 includes: a fuel cell body 9 , a heater 6 , a third valve 7 , a radiator 2 and a first valve 3 . The fuel cell subsystem 100 is used to power a fuel cell vehicle.

[0074] The fuel cell body 9 has a fuel cell refrigerant inlet 901 and a fuel cell refrigerant outlet 9...

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Abstract

The application relates to a fuel cell vehicle thermal management method. The fuel cell vehicle thermal management system includes a fuel cell subsystem, a power battery subsystem, a passenger compartment heating subsystem, and a heat exchange control subsystem. The method includes steps of detecting a current ambient temperature T; and when the current ambient temperature T is greater than or equal to an ambient temperature threshold T1 at which a power battery in the power battery subsystem requires thermal insulation and the passenger compartment heating subsystem requires heat supply, enabling the fuel cell vehicle to be in a normal environment startup mode, otherwise, enabling the fuel cell vehicle to be in a low-temperature environment startup mode. The fuel cell vehicle thermal management method solves the rapid startup of the fuel cell and the thermal insulation of the power battery at low temperature.

Description

technical field [0001] This application relates to the technical field of new energy vehicles, in particular to a thermal management method for fuel cell vehicles. Background technique [0002] New energy vehicles represented by fuel cell vehicles have the advantages of energy saving and environmental protection. They have developed rapidly in recent years and have good application prospects. Especially in the field of commercial vehicles, fuel cell vehicles have a longer driving range than pure electric vehicles. However, compared with traditional internal combustion engine vehicles, fuel cell vehicles face greater challenges in thermal management. [0003] In order to solve the problem of fuel cell vehicles starting quickly and power battery heat preservation at low temperature, some patents in the prior art only consider the cooling of the fuel cell, and do not make full use of the waste heat generated when the fuel cell is working. Other patents only use the waste heat...

Claims

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Application Information

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IPC IPC(8): H01M8/04223H01M8/04225H01M8/04302H01M8/0432
CPCH01M8/04225H01M8/04268H01M8/04302H01M8/04358H01M2250/20B60L58/40B60L58/31B60L58/33B60L58/34Y02E60/50
Inventor 江宏亮李建秋徐梁飞欧阳明高洪坡胡尊严方川
Owner TSINGHUA UNIV
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