Cold start control method and device, equipment and medium
A technology of cold start and start conditions, applied in the fields of equipment and media, devices, and cold start control methods, can solve the problems of reducing the activity of yin and yang catalysts, start failure, and long start time, so as to shorten the cold start time and shorten the cold start The effect of time, convenience and efficient cold start control
Pending Publication Date: 2022-07-22
DONGFENG MOTOR GRP
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[0003] However, it has been found in practice that when the fuel cell is in a low-temperature environment, the cathode and anode gas pipelines inside the fuel cell and the water in the stack will freeze, which will cause congestion in the gas flow channel in the stack and reduce the performance of the cathode and anode catalysts. activity, causing fuel cell vehicles to take longer to start in low temperature environments, or to fail to start, etc.
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[0056] In the process of filing the present application, the applicant also found that: at present, the cold-starting condition of the fuel cell dual-system vehicle is judged according to the current ambient temperature. If the ambient temperature is less than or equal to the set value, the cold start process is performed. Both systems set the target temperature and power of the positive temperature coefficient thermistor (PTC) at the same time, raise the stack temperature to above 0°C, and then carry out the normal startup process to activate the thermal management, hydrogen and air subsystems , the hydrogen and air are fed into the stack to react to generate electricity to meet the power demand of the whole vehicle.
[0057] However, in practice, it is found that the cold-start start-up condition is only judged by the current ambient temperature, which is not comprehensive enough. Different process operations are not performed according to the different states of the two syste...
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The invention discloses a cold start control method, a cold start control device, cold start control equipment and a medium, which are applied to fuel cell dual systems including a first fuel cell system and a second fuel cell system, and the method comprises the following steps: when a cooling liquid stack-out temperature of a target cell system is less than or equal to a first preset temperature, starting the target cell system; judging preset cold start conditions of the subsystems in the fuel cell dual systems in sequence, wherein the target cell system is the first fuel cell system and / or the second fuel cell system; and when each subsystem meets a preset cold start condition, starting a fuel stack in the target battery system for self-heating so as to shorten the cold start time. According to the invention, the cold start control of the dual systems of the fuel cell can be efficiently realized, and the cold start time is shortened.
Description
technical field [0001] The invention relates to the technical field of automobiles, and in particular, to a cold start control method, device, equipment and medium. Background technique [0002] As a big automobile country, China has a huge automobile market. While bringing economic benefits, it is accompanied by huge energy consumption and environmental pollution. With the increasingly fierce competition in the automotive field, various enterprises and universities have begun to engage in the research of hydrogen fuel cell vehicles. The application field of fuel cell vehicles is currently mainly in the commercial vehicle market. Due to the large size and weight of commercial vehicles, the demand for high-power fuel cell vehicles is increasing day by day, and dual-system fuel cell vehicles emerge as the times require. [0003] However, in practice, it is found that when the fuel cell is in a low temperature environment, the cathode and anode gas pipelines inside the fuel c...
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Login to View More IPC IPC(8): H01M8/04302H01M8/0432H01M8/04992H01M8/04225
CPCH01M8/04253H01M8/04268H01M8/04225H01M8/04302H01M8/04358H01M8/04992H01M2250/20Y02E60/50
Inventor 宫熔王成王秋来马义
Owner DONGFENG MOTOR GRP