| 摘要 |
PURPOSE:To aim at simplification in a brake controller, by installing a controlling device, which selects braking hydraulic pressure in a driven wheel to a reduction mode, in an electronic control unit when a brake switch is not yet turned on and a slip of a driving wheel is more than the specified value. CONSTITUTION:An electronic control unit (ECU)74 detects a running state from each speed signal out of speed sensors 70 and 72, judges a slip according to the said running state, and in time of slip occurrence, outputs a control signal commensurate to the slip state to a hydraulic pressure control valve 75, controls braking pressure to be added to a wheel cylinder of each wheel to select it to an intensification mode or a reduction mode and issues a command from an output port 82 so as to check the slip. In addition, in this ECU74, there is provided with a propulsion controlling device for controlling braking pressure inside each wheel cylinder to select if to the reduction mode when a brake pedal is not yet turned on and a slip in a driving wheel is judged as more than the specified value. |
