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| Engine Starting Auxiliary Device for Air Intake Preheating of Medium & Heavy Duty Vehicles in Plateau and Cold Area |
| Received:August 07, 2017 Revised:October 15, 2017 |
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| DOI：10.7643/issn.1672-9242.2017.10.008 |
| KeyWord:plateau and cold zone intake air temperature centralized preheating gridiron resistance |
| Author | Institution |
| YUE Wei-qiang |
Military Traffic Institute, Tianjin , China |
| WANG Shuo |
Military Traffic Institute, Tianjin , China |
| LIU Bing-jun |
Military Traffic Institute, Tianjin , China |
| LIU Feng-yun |
Beijing Jingwei Vehicle Equipment Co., Ltd, Beijing , China |
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| Abstract: |
| Objective To overcome the engine starting difficulty of medium and heavy duty off-road vehicles at plateau and cold area. Methods Influences of intake air temperature on engine starting was proceeded to study advantages and disadvantages of several typical air intake preheating methods. Based on the real substance of two off-road vehicles, the gridiron centralized resistance preheater was designed. Main parameters such as the power the size and the control strategy by calculate and testing were confirmed and the matching relationship of the cell and the preheater was also analyzed. Results Preheater was installed on the vehicles to make some test in the natural pressure lab and the real plateau condition. Vehicles can be started in 3 minutes with the assistance of the preheaters at -30 ℃ in lab and -27 ℃ in real plateau environment. Conclusion The method can effectively settle the problem of the engine starting at plateau zone where the temperature is above -30 ℃. The equipment is easy to install and has high reliability, is applicable to the off-road vehicles, and also gives an effective way to solve such problems. |
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