| 摘要 |
<p>PURPOSE:To permit the correct and quick detection of slip and glide, by changing the detecting level of slip and glide based on the sum of a vehicle acceleration and a slope acceleration. CONSTITUTION:During the control of power running, a vehicle acceleration alpha0 determined by the command of pulling force of a vehicle is constant. However, a slope acceleration alpha1 is increased as a time is elapsed when the running line of the vehicle is a down slope line and the slope of the line is increased. In this case, a detecting level D for detecting slip is increased in the same manner as the slope acceleration alpha1 by the sum of the vehicle acceleration alpha0 and the slope acceleration alpha1. According to this method, the faulty detection of slip will never be caused since the detecting level D is increased in accordance with the sum of the vehicle acceleration alpha0 and the slope acceleration alpha1 even when the changing rate of the frequency of rotation of an induction motor is increased. On the contrary, when the running line becomes a climbing line, the detecting level D is decreased.</p> |
