A fuel cell shutdown purging control method

A control method and fuel cell technology, applied to fuel cells, circuits, electrical components, etc., can solve the problems of waste of battery power, inability to distinguish fuel cell purging, etc., and achieve the effect of saving power consumption and avoiding freezing of accumulated water

Active Publication Date: 2021-01-01
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current technical conditions, fuel cell purging is generally carried out directly after the fuel cell vehicle is parked, and it is impossible to distinguish whether it is necessary to perform fuel cell purging, resulting in waste of battery power

Method used

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  • A fuel cell shutdown purging control method
  • A fuel cell shutdown purging control method
  • A fuel cell shutdown purging control method

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a fuel cell parking purging control method. The fuel cell parking purging control method comprises the steps: adjusting the SOC value of a storage battery; when the environmenttemperature T1 is higher than zero DEG C, stopping purging treatment is directly finished; and when the environment temperature T1 is lower than or equal to zero DEG C, reading the environment temperature T1, reading the temperatures Th of a galvanic pile and accessories, and setting the icing temperature T of the galvanic pile and the accessories to be zero DEG C. According to the fuel cell parking purging control method, after a fuel cell vehicle is parked, by collecting the temperatures of the galvanic pile and the accessories and the environment temperature, calculating the icing temperatures of the galvanic pile and the accessories and setting the reasonable parking purging timing time, consumption of electric quantity in the storage battery can be effectively reduced while water accumulation and icing in the galvanic pile and the accessories are avoided.

Description

technical field [0001] The invention belongs to the field of new energy vehicles, and in particular relates to a method for controlling fuel cell shutdown and purging. Background technique [0002] After the fuel cell vehicle runs in winter, it is necessary to purge the stack and accessories to purge the internal moisture to the outside of the vehicle to prevent the residual water from freezing inside the stack and accessories, damaging the internal structure of the battery, and affecting the battery. It also prevents the blockage of the pipeline after ice accumulation affects the intake of air and hydrogen after the vehicle is started. Under the current technical conditions, fuel cell purging is generally carried out directly after the fuel cell vehicle is parked, and it is impossible to distinguish whether it is necessary to perform fuel cell purging, resulting in waste of battery power. Contents of the invention [0003] In view of this, the present invention aims to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04223H01M8/04228H01M8/04992
CPCH01M8/04253H01M8/04992H01M8/04228Y02E60/50
Inventor 杨天李哲聂彦鑫王林波于佩良韩刚
Owner CHINA AUTOMOTIVE TECH & RES CENT
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