Abstract: The braking device for vehicles includes a reduction amount setting part for setting the amount by which to reduce the revolution of a pump motor during maintenance or reduction of controllable differential pressure so that the reduction amount decreases as the probability increases of needing to discharge the brake fluid by pumps, during a period from when a brake controller begins reducing the revolution until the lapse of prescribed time.

Abstract: A hydraulic brake system for a vehicle, including: a wheel brake device configured to generate a braking force based on a pressure of a working fluid; a first brake system including a high-pressure source device including an accumulator and a first pump device that is driven intermittently such that a pressure of the working fluid in the accumulator is not lower than a set lower limit pressure and not higher than a set upper limit pressure; a second brake system including a second pump device; and a main power source that supplies electricity to the first and second brake systems, wherein the hydraulic brake system includes an auxiliary power source that supplies electricity to the first brake system when a failure occurs in the main power source, and wherein the first pump device is continuously driven when the failure occurs irrespective of the pressure in the accumulator.

Abstract: A vehicle brake system, including: a first hydraulic-pressure control mechanism and a second hydraulic-pressure control mechanism configured to control a braking force; and a controller including a first-abnormal-state detecting device configured to detect whether the first hydraulic-pressure control mechanism is in a first abnormal state, a second-abnormal-state detecting device configured to detect whether the first hydraulic-pressure control mechanism is in a second abnormal state that the first hydraulic-pressure control mechanism reaches before reaching the first abnormal state, and an assist control device configured to control the second braking-force control mechanism so as to control the braking force when an assist wait time elapses after the second-abnormal-state detecting device has detected that the first hydraulic-pressure control mechanism is in the second abnormal state, the assist wait time being determined based on a temperature of a working fluid obtained by a temperature obtaining device o

Abstract: A braking control device includes an upstream mechanism control unit, a determination unit, and a control unit. The upstream mechanism control unit is configured to feedback control the upstream mechanism in such a manner that a detected hydraulic pressure detected by a hydraulic pressure sensor is brought to an upstream target hydraulic pressure. The hydraulic pressure sensor detects a hydraulic pressure of the hydraulic pressure circuit. The determination unit is configured to determine, based on the detected hydraulic pressure by the hydraulic pressure sensor, whether hydraulic pressure hunting is occurring. The control unit is configured to control the downstream mechanism based on the upstream target hydraulic pressure and the target wheel pressure in a case where the determination unit determines that the hydraulic pressure hunting is occurring.

Abstract: This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.

Abstract: This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.

Abstract: The braking device for vehicles comprises a reduction amount setting part 62 for setting the amount by which to reduce the revolution of a pump motor M during maintenance or reduction of controllable differential pressure so that said reduction amount decreases as the probability increases of needing to discharge the brake fluid by means of pumps 37, 47 during a period from when a brake ECU 60 begins reducing the revolution Nd until the lapse of prescribed time.