发动机电磁离合水泵对整车经济性的影响

孟庆江^1,2，徐京莉^1,2，刘海朋^1,2，张文通^1,2，马海川^1,2，胡清^1,2

1.内燃机可靠性国家重点实验室，山东 潍坊  261061；2.潍柴动力股份有限公司，山东 潍坊  261061

摘要：为提高发动机燃油经济性，通过试验研究发动机电磁离合水泵在不同工况（城市工况、国道工况、高速工况）下对整车油耗的影响。试验结果表明：电磁离合水泵在全转状态下与普通水泵功耗基本一致，无节油效果；在电控状态下可有效降低整车油耗水平，综合节油率约为1.12%；在国道工况节油效果最好，在高速工况节油效果次之，在市区工况下基本没有节油效果。本文可为电磁离合水泵的改进和推广应用提供参考。

关键词：电磁离合水泵；经济性；节油率

Influence of engine electromagnetic clutch pump on vehicle economy

MENG Qingjiang^1,2, XU Jingli^1,2, LIU Haipeng^1,2, ZHANG Wentong^1,2，MA Haichuan^1,2, HU Qing^1,2

1.State Key Laboratory of Engine Reliability, Weifang 261061, China; 2.Weichai Power Co., Ltd., Weifang 261061, China

Abstract：In order to improve the fuel economy of the engine, the influences of the electromagnetic clutch pump of the engine on the fuel consumption of the whole vehicle under different working conditions (urban, extra-urban and high-speed) are studied through experiments. The test results show that the power consumption of the electromagnetic clutch pump is basically the same as that of the ordinary pump at full rotation, and there is no fuel saving effect. The electromagnetic clutch water pump can effectively reduce the fuel consumption of the whole vehicle only under the electronic control state, and the comprehensive fuel saving rate is about 1.12%. The electromagnetic clutch pump has the best fuel saving effect in the extra urban condition, followed by the high-speed condition, but has no fuel saving effect in the urban condition. This study can provide reference for the improvement and promotion of electromagnetic clutch pump.

Keywords:electromagnetic clutch pump；economy；fuel saving rate