At present, the engines of hydrogen Fuel Cell Vehicles (FCV) can basically achieve the cold start at -30 ℃, and the energy consumption to start FCV at low temperature is lower than that of battery Electric Vehicles (EV). In order to realize the quick start of FCV with low energy consumption, the theory of cold start technologies and a large number of experiments and optimization schemes are summarized This paper conducts research from the aspects of component design and layout, pipeline design, start-up and shot down strategy, purge strategy, cold start fault diagnosis strategy and auxiliary heating, and forms a series of software and hardware solutions conducive to cold start, which are verified by test benches and vehicle tests. Based on engineering applications, this study improves the robustness and the success rate of low temperature cold start of fuel cell engines, and reduces the risk and damage of cold start failure to the system, through structural optimization, strategy development and fault diagnosis and protection mechanism.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |