原文传递
The Study of Vehicle Warm-up Strategy with Electric Water Pump
| 题名： | The Study of Vehicle Warm-up Strategy with Electric Water Pump |
| 正文语种： | 中文 |
| 作者： | Liu Jujiang Lin Chengbo Wu Guangquan Qiao Yanju Xia Xin |
| 作者单位： | Automotive Engineering Institute |
| 关键词： | coolant electric water pump warm-up cooling system gasoline engine |
| 摘要： | This study introduces the mechanical structure and control system of an electric water pump(EWP).Based on this EWP,multiple tests have been done to analyze the vehicle warm-up process.The results show that coolant temperature in engine warm-up process experiences three stages rising from normal condition to 95℃.The 1st stage begins with the engine starting and ends up with the thermostat opening: EWP flow has little influence on the rising of coolant temperature,but On-Off mode combing with a fitting strat-egy could reduce time by 23%~25%in this stage.During the 2nd stage,coolant in the radiator and the bypass system start to mix due to the temperature difference.Increasing the flow of EWP could accelerate the process.Once the coolant temperature of inner engine is equal to outer radiator,the 3rd stage begins,and EWP should decrease the flow to reduce the heat loss and speed up the coolant temperature rising. |
| 会议日期： | 20171024 |
| 会议举办地点： | 上海 |
| 会议名称： | 第19届亚太汽车工程年会暨2017中国汽车工程学会年会 |
| 出版日期： | 1024-01-20 |
| 母体文献： | 第19届亚太汽车工程年会暨2017中国汽车工程学会年会论文集 |
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