| 摘要 |
<p>PURPOSE:To enable an adhesion force to be effectively used, by changing an arithmetic constant producing high-adhesion control signal according the output level of the high-adhesion control signal. CONSTITUTION:by a logical operation section 2, arithmetic operations are executed on discrimination between a slip acceleration period and a slip non- acceleration period, and high-adhesion control signal Tf in both periods, based on a driving wheel circumferential speed VM, a car body speed VT, and these variation quantity DELTAVM, DELTAVT. The high-adhesion control signal Tf in the slip non-acceleration period is reduced in the state of primary delay with the initial value of the high-adhesion control signal on detecting the completion of slip acceleration, and according to the reduction of the high-adhesion control signal, the time constant of the primary delay is increased. By a main circuit controller 1, the driving current of a main motor 5 is controlled according to the subtracted value of a torque command value Tp and the high-adhesion control signal Tf.</p> |
