| 摘要 |
PURPOSE:To control an antiskid in accordance with a road surface even if the road surface is changed in 1 cycle, by selecting decleration obtaining a false car body speed to a small value when a relaxing time of brake oil pressure exceeds a prescribed value. CONSTITUTION:A signal from a car body speed sensor 30 is input to a CPU via an amplifying and waveform shaping unit 32. The CPU measures a time relaxing brake oil pressure by a solenoid timer 44, when this measured time exceeds a prescribed value, a signal is fed to a reference car speed setter unit 42. The unit 42 decides a false car body speed on the basis of a prescribed deceleration, when the signal is fed from the solenoid timer, this deceleration is changed to a small value. Since a false car body speed corresponding to a road surface mu can be determined even if the road surface is changed during 1 cycle of control, an antiskid is more accurately controlled. |
