| 摘要 |
PURPOSE:To adjust the height of a car that quickly responds to a road surface state when the minimum value detected from a car height signal is decreased or increased beyond a desired car height value by elevating and adjusting the car height only for the difference between the minimum value and desired car height value. CONSTITUTION:An actual car speed signal (a) from a car height sensor 1 is supplied to a minimum value sensing circuit 2 and a minimum value signal (b) obtained here is input to a memory circuit 7 and an operation circuit 4 through a switching circuit 3. In addition, a car height signal (g) that indicates the level of the minimum value X2 stored in the memory circuit 7 is compared with a desired car speed signal (f) that indicates the upper and lower bound values from a generation circuit 9 through a comparison circuit 8 at the timing of a data update pulse signal (c). Then, when X2<Y2, a solenoid 12 is excited and a shock absorber 24 is raised and adjusted. Simultaneously with this, the movable contact Tc of the switching circuit 3 is switched to a contact Tb side through an OR circuit 14 and the car height is adjusted according to the comparison result between a corrected car height signal (d) and the desired car height signal (f). |
