| A JOINT CONTROL STRATEGY FOR AUTOMOBILE
ACTIVE GRILLE SHUTTER AND COOLING FAN |
| Chuanbo Liu1, Zhengju Wang1, Chaojie Fan1, Ruonan Zhang2, Xingjia Man3 |
1Wuhan University of Technology
2China Ship Scientific Research Center
3SAIC-GM-Wuling Automobile |
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| ABSTRACT |
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As an emerging technology improving fuel consumption, active grille shutter (AGS) has been applied in
engine cooling system. For the reason of unreasonable matching method of grille opening and cooling fan, the problem of
engine overcooling is widespread. As components with similar function of adjusting cooling air flow, the AGS and the
cooling fan are separated from each other in parameter matching and operation which reduce cooling efficiency and fuel
economy. To achieve precise cooling and improve fuel economy, a joint control strategy for AGS and cooling fan was
proposed by using computational fluid dynamics. In order to verify the feasibility of the strategy, the fuel economy tests were
carried out at 0 km/h, 90 km/h and 120 km/h, respectively. The results showed that the fuel consumption under the three
working conditions was reduced by 0.01 L/ 100 km, 0.07 L/ 100 km and 0.13 L/ 100 km, respectively, indicating that the
proposed strategy can significantly reduce fuel consumption. |
| Key Words:
Active grille shutter, Cooling fan, Parameter matching, Cooling performance, Fuel economy |
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Corresponding Author.
Chuanbo Liu , Email. 
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