On-vehicle hydrogen storage system and its hydrogen supply control method, fuel cell vehicle
A control method and fuel cell technology, applied in power system fuel cells, fuel cells, fuel cell control, etc., can solve problems such as false alarm failures, and achieve the effect of reducing the probability of false alarm failures
Active Publication Date: 2022-04-05
WEICHAI POWER CO LTD
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Problems solved by technology
However, in the prior art, when the hydrogen storage system of a fuel cell vehicle supplies hydrogen to the fuel cell, it is often because when the hydrogen passes through the pressure reducing valve, as long as the pressure at the outlet of the pressure reducing valve is low or high, the on-board hydrogen storage system will It will report a fault and stop the hydrogen supply, so that the on-board hydrogen storage system has a higher probability of falsely reporting a fault when supplying hydrogen to the fuel cell
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[0043] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0044] In the following description, a lot of specific details are set forth in order to fully understand the application, but the application can also be implemented in other ways different from those described here, and those skilled in the art can do without violating the connotation of the application. By analogy, the present application is therefore not limited by the specific embodiments disclosed below.
[0045] As a key assembly part of the fuel cell, the on-board hydrogen s...
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Embodiments of the present application provide a vehicle-mounted hydrogen storage system and its hydrogen supply control method, as well as a fuel cell vehicle. The method includes: after receiving a hydrogen supply command, controlling the main shutdown of each hydrogen storage bottle in the vehicle-mounted hydrogen storage system After the valves are all opened, delay the first time to detect whether the pressure at the outlet of the pressure reducing valve in the on-board hydrogen storage system meets the preset conditions. If the pressure at the outlet of the pressure reducing valve in the on-board hydrogen storage system does not meet the preset conditions, continue to delay After the first period of time, check whether the pressure at the outlet of the pressure reducing valve in the vehicle-mounted hydrogen storage system meets the preset conditions. Set conditions to stop executing the hydrogen supply command and not supply hydrogen to the fuel cell, so as to avoid the main shut-off valve of the on-board hydrogen storage system not being fully opened, causing the pressure at the outlet of the pressure-relief valve to rise slowly and causing the outlet of the pressure-relief valve in the on-board hydrogen storage system to The pressure does not meet the preset conditions and falsely report failures, reducing the probability of falsely reporting failures.
Description
technical field [0001] The present application relates to the technical field of hydrogen supply control of a hydrogen storage system, and in particular to a vehicle-mounted hydrogen storage system, a hydrogen supply control method thereof, and a fuel cell vehicle. Background technique [0002] Fuel cell vehicle technology is becoming more and more mature. As a new energy vehicle with zero pollution and zero emission, more and more fuel cell vehicles have entered the transportation system and have been widely recognized by the public. [0003] Fuel cell vehicles use hydrogen as fuel, and the fuel engine converts chemical energy into electrical energy efficiently to drive the vehicle. The whole process only discharges pure water, so it is the most ideal energy-saving and environmentally friendly zero-emission transportation to replace traditional fossil fuel vehicles in the near future tool. However, in the prior art, when the hydrogen storage system of a fuel cell vehicle s...
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IPC IPC(8): H01M8/04298H01M8/04082H01M8/04089H01M8/0438
CPCH01M8/04298H01M8/04089H01M8/04201H01M8/04425H01M2250/20Y02E60/50
Inventor 李力军赵强王昕雨燕泽英郝佳李宇航陆寒
Owner WEICHAI POWER CO LTD