This vehicle braking control device executes automatic braking control to adjust a braking torque on the basis of a vehicle target deceleration value corresponding to a distance between the vehicle and an object in front of the vehicle, and executes anti-skid control to suppress excessive wheel slip by adjusting the braking torque on the basis of a wheel speed. The braking control device calculates an actual deceleration value corresponding to the target deceleration value, and executes feedback control on the basis of the target deceleration value and the actual deceleration value such that the actual deceleration value approaches the target deceleration value. The configuration is such that a control gain of the feedback control is reduced when anti-skid control is executed. Further, the configuration may be such that execution of feedback control is prohibited when anti-skid control is executed.

This vehicle braking control device executes automatic braking control to adjust a braking torque on the basis of a vehicle target deceleration value corresponding to a distance between the vehicle and an object in front of the vehicle, and executes anti-skid control to suppress excessive wheel slip by adjusting the braking torque on the basis of a wheel speed. The braking control device calculates an actual deceleration value corresponding to the target deceleration value, and executes feedback control on the basis of the target deceleration value and the actual deceleration value such that the actual deceleration value approaches the target deceleration value. The configuration is such that a control gain of the feedback control is reduced when anti-skid control is executed. Further, the configuration may be such that execution of feedback control is prohibited when anti-skid control is executed.

A solenoid comprises first and second coils connected to an electrical power supply circuit. In a first mode of operation the power supply circuit is arranged to provide a current flowing in opposite directions through the respective first and second coils, e.g. to produce a self-heating effect. In a second mode of operation the power supply circuit is arranged to provide a current flowing in the same direction through the respective first and second coils, e.g. to generate a magnetic force. In some embodiments, the power supply circuit includes a bridge rectifier or full wave rectifier connected to a bi-directional current driver.

A solenoid comprises first and second coils connected to an electrical power supply circuit. In a first mode of operation the power supply circuit is arranged to provide a current flowing in opposite directions through the respective first and second coils, e.g. to produce a self-heating effect. In a second mode of operation the power supply circuit is arranged to provide a current flowing in the same direction through the respective first and second coils, e.g. to generate a magnetic force. In some embodiments, the power supply circuit includes a bridge rectifier or full wave rectifier connected to a bi-directional current driver.

A brake control device controls a hydraulic brake that generates hydraulic braking force and an electric parking brake that generates parking braking force different from the hydraulic braking force. The brake control device comprises: a detection unit that detects a parking brake operation for causing the electric parking brake to generate the parking braking force; and a control unit that causes the electric parking brake to generate the parking braking force when the hydraulic braking force per wheel generated by the hydraulic brake, after decreasing below the minimum first braking force per wheel required for maintaining the vehicle stop state only by the electric parking brake, is less than the first braking force, in association with the parking brake operation having been performed in a state where the stop state is maintained only by a hydraulic brake operation for causing the hydraulic brake to generate the hydraulic braking force.

A brake control device controls a hydraulic brake that generates hydraulic braking force and an electric parking brake that generates parking braking force different from the hydraulic braking force. The brake control device comprises: a detection unit that detects a parking brake operation for causing the electric parking brake to generate the parking braking force; and a control unit that causes the electric parking brake to generate the parking braking force when the hydraulic braking force per wheel generated by the hydraulic brake, after decreasing below the minimum first braking force per wheel required for maintaining the vehicle stop state only by the electric parking brake, is less than the first braking force, in association with the parking brake operation having been performed in a state where the stop state is maintained only by a hydraulic brake operation for causing the hydraulic brake to generate the hydraulic braking force.

This electric braking device is provided with: an electric motor MTR that, in accordance with an operation amount Bpa of a braking operation member BP, generates a pressing force Fba, being a force pressing a friction member MSB against a rotary member KTB that rotates integrally with a wheel WHL of the vehicle; and a circuit board KBN to which a processor MPR and a bridge circuit BRG are mounted. The device is further provided with a rotation angle sensor MKA for detecting the rotation angle Mka of the electric motor, and drives the electric motor MTR on the basis of the rotation angle Mka. An end face Mmk of the rotation angle sensor MKA is fixed so as to be in contact with the circuit board KBN. The device is further provided with a pressing force sensor FBA for detecting the pressing force Fba, and drives the electric motor MTR on the basis of the pressing force Fba. An end face Mfb of the pressing force sensor FBA is fixed so as to be in contact with the circuit board KBN.

This electric braking device is provided with: an electric motor MTR that, in accordance with an operation amount Bpa of a braking operation member BP, generates a pressing force Fba, being a force pressing a friction member MSB against a rotary member KTB that rotates integrally with a wheel WHL of the vehicle; and a circuit board KBN to which a processor MPR and a bridge circuit BRG are mounted. The device is further provided with a rotation angle sensor MKA for detecting the rotation angle Mka of the electric motor, and drives the electric motor MTR on the basis of the rotation angle Mka. An end face Mmk of the rotation angle sensor MKA is fixed so as to be in contact with the circuit board KBN. The device is further provided with a pressing force sensor FBA for detecting the pressing force Fba, and drives the electric motor MTR on the basis of the pressing force Fba. An end face Mfb of the pressing force sensor FBA is fixed so as to be in contact with the circuit board KBN.

Provided is a brake device capable of stabilizing a deceleration at the time of starting braking. The brake device is configured to correct a distribution of a braking force to each wheel or a braking force for each wheel, based on a detection value obtained by a load position distribution detection unit configured to detect a position distribution of a load applied to the vehicle when the vehicle is stopped or is in an initial period of starting.

The present invention prevents occurrence of abnormal noise and swing of a vehicle in mitigating braking force of a steered wheel while reducing a steering load at the time of stationary steering to reduce a burden of a steering device and reducing stress accumulation due to stationary steering to reduce burdens of a tire, a suspension device and the steering device. The present invention includes a stop braking force control unit 202 that individually controls braking forces of steered wheels 51 and 52 and non-steered wheels 53 and 54 at the time of deceleration of the vehicle, and a pre-detection unit 203 that detects steering in a stopped state of the vehicle in advance, in which the stop braking force control unit executes, when the steering in a stopped state of the vehicle is detected in advance by the pre-detection unit, braking force mitigation control to decrease the braking forces of the steered wheels to be lower than the braking forces at the time of normal braking.