A hybrid low temperature cold start control method for a fuel cell vehicle
A fuel cell vehicle and fuel cell technology, which is applied in battery/fuel cell control devices, fuel cells, fuel cell additives, etc., can solve the problems of high energy consumption and slow cold start speed, so as to tap the energy saving potential and take into account the system Safety, taking into account the effect of fast startup
Active Publication Date: 2021-05-14
JILIN UNIV
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to overcome the problems of low cold start speed and high energy consumption of the existing fuel cell vehicles in low temperature environment, and propose a hybrid low temperature cold start control method for fuel cell vehicles
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[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. Since the overall detailed layout of the vehicle fuel cell system is known to those skilled in the art, it will not be repeated here.
[0030] The method for controlling low-temperature cold start of a hybrid fuel cell vehicle according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
[0031] see first figure 2 The low-temperature cold start process of the present invention generally includes the purge pro...
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The invention discloses a hybrid low-temperature cold start control method for a fuel cell vehicle, which belongs to the field of new energy vehicles. The effective low temperature cold start control method can overcome the slow cold start speed and high energy consumption of the existing fuel cell vehicle in a low temperature environment And other issues. The method provided by the invention starts from the input of system parameters and calculates the cold start requirements, and divides the cold start into two start-up stages according to the start-up process. Fuel is supplied, and when the fuel cell reaches the start-up temperature, it enters the second stage of cold start, that is, the mixed start-up stage. At this time, the air supply unit and the hydrogen supply unit start to work, and the fuel cell operates with low power. The fuel cell vehicle hybrid low-temperature cold start control method described in the method has a faster start response capability and improves the safety of the fuel cell.
Description
technical field [0001] The invention belongs to the field of fuel cell vehicle control, more specifically, the invention relates to a hybrid low-temperature cold start control method of a fuel cell vehicle. Background technique [0002] In the new energy vehicle development system, fuel cell vehicles are an important part of it. A proton exchange membrane fuel cell is an electrochemical device that directly converts stored chemical energy into electrical energy, heat energy, and water through a reaction with a battery. It is not limited by the Carnot cycle, has high conversion efficiency, and can run continuously for a long time as long as there are enough hydrogen and oxygen. Because of its high energy conversion efficiency, low noise, and no emissions (the reaction product is water), it has become a research hotspot in various countries. [0003] However, apart from the generation, transportation and storage of hydrogen, there are still problems in the system itself that...
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IPC IPC(8): H01M8/04007H01M8/04029H01M8/04223H01M8/04225H01M8/04302H01M8/0432H01M8/04955H01M8/04992B60L58/31B60L58/34B60L58/40
CPCB60L2240/545B60L58/31B60L58/34B60L58/40H01M8/04007H01M8/04029H01M8/04268H01M8/0432H01M8/04358H01M8/04373H01M8/04955H01M8/04992H01M8/04225H01M8/04302Y02E60/50Y02T10/70Y02T90/40
Inventor 曾小华张轩铭宋大凤钱琦峰牛超凡陈建新高福旺李晓建
Owner JILIN UNIV