运行车速预测中的汽车换档

Shifting regulation of predicting vehicle speed

针对汽车行驶中,驾驶员主要根据汽车的动力性进行减速换档的实际情况,在汽车加速换档的基础上,研究了汽车进行减速换档的规律。根据驾驶员实际操作规律,提出了动力换档法,以东风EQ 140为例,确定了汽车进行减速换档时的最佳运行速度。最后给出了汽车换档的速度损失计算公式。

During vehicle driving, the driver decelerates speed according to the dynamics of vehicle. On the foundation of acceleration shifting,this paper discussed the rule of deceleration shifting according to the principle of drivers' actual operation, put torward dynamic shiftiing method.Takeing Dongfeng EQ-140 as an example,the optimal run speed during the deceleration shifting was confirmed.