在本刊１９９９年第９期《“汽车起动问题”简析》一文中，将“汽车在平直路面上起动”分为二类，其中“一类是以恒定功率起动”． 笔者以为，汽车是不可能以恒定功率起动的，因为根据Ｐ＝Ｆｖ，在起动初期速度ｖ很小，牵引力Ｆ应很大，特别是刚起动时速度ｖ为零，牵引力Ｆ应是 In the article “A Brief Analysis of the “Car Startup Problem”” in the 9th issue of the magazine in 1999, the “car started on a straight road surface” is divided into two categories, where “one type is started with a constant power”. The author believes that the car is not possible to start with a constant power, because according to P = Fv, the speed v is very small in the early start-up, the traction force F should be very large, especially when the speed v is just zero, the traction force F should be