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Method for controlling fuel cell engine temperature

A technology of engine temperature and fuel cell, which is applied in fuel cells, electrochemical generators, circuits, etc., can solve the problems that cannot meet the temperature control requirements of graphite bipolar plate fuel cell engines, achieve stable control and reduce decay speed Effect

Inactive Publication Date: 2021-05-04
BEIJING SINOHYTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method and device disclosed in Chinese patent application CN108206292A can only meet the temperature control requirements of metal bipolar plate fuel cell engines, but cannot meet the temperature control requirements of graphite bipolar plate fuel cell engines

Method used

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  • Method for controlling fuel cell engine temperature
  • Method for controlling fuel cell engine temperature
  • Method for controlling fuel cell engine temperature

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides a method for controlling the temperature of a fuel cell engine. The method comprises the following steps: that S1, controlling the temperature of an outlet of a radiator in a closed-loop mode; and S2, performing closed-loop control on the opening degree of a thermostat and / or closed-loop control on the rotating speed of a water pump so as to further adjust the temperature of a cooling liquid at the inlet of an electric pile, wherein in the step S1, the correction coefficient C1 of the heat radiator PWM calculated by a program is obtained based on the environment temperature so as to modify the heat radiator PWM, and in the step S2, the correction coefficient C2 of the opening degree of the thermostat calculated by a program and / or the correction coefficient C3 of the rotating speed of the water pump calculated by the program are / is obtained based on the environment temperature, so that the opening degree of the thermostat and / or the rotating speed of the water pump are / is corrected. According to the method, the temperature of the cooling liquid can be controlled, so that the temperature of the cooling liquid does not deviate from the target temperature when the environment temperature changes.

Description

technical field [0001] The invention relates to a method for controlling the temperature of a fuel cell engine. Background technique [0002] The coolant temperature control of the fuel cell engine directly affects the performance output and life of the fuel cell engine. Therefore, it is necessary to precisely control the coolant temperature when the fuel cell is working, so that the fuel cell engine can work within the optimum temperature range and ensure the performance output of the fuel cell engine. Meet the design requirements and reduce the decay rate of the fuel cell engine. [0003] At present, the stack bipolar plates of fuel cell engines mainly include two materials—metal plates and graphite plates. For metal bipolar plate fuel cell engines, the working target temperature of the fuel cell engine changes with the ambient temperature, and the coolant temperature also changes accordingly. Hyundai Automobile Co., Ltd. discloses a device and method for controlling the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04701
CPCH01M8/04723Y02E60/50
Inventor 刘秀会周鹏飞贾能铀张禾杨绍军
Owner BEIJING SINOHYTEC
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