Braking control device for vehicle
A braking control device includes a master unit including a master chamber connected to a front wheel cylinder and a servo chamber that applies forward force opposing a reverse force applied to a master piston by the master chamber to the master piston, a pressure adjustment unit that adjusts brake fluid discharged by a pump to a first liquid pressure by a first solenoid valve and introduces the first liquid pressure to a rear wheel cylinder, and adjusts the first liquid pressure to decrease to a second liquid pressure by a second solenoid valve and introduces the second liquid pressure to the servo chamber; and a regenerative coordination unit having an input piston operable in conjunction with a braking operation member and an input cylinder fixed to the master cylinder, and in which a gap between the master piston and the input piston is controlled by the second liquid pressure.
1. A braking control device for a vehicle in which a regenerative generator is provided on a front wheel of the vehicle, the braking control device for the vehicle comprising:
a master unit configured by a master cylinder and a master piston, and includes a master chamber connected to a front wheel cylinder of the vehicle and a servo chamber that applies a forward force opposing a reverse force applied to the master piston by the master chamber to the master piston;
a pressure adjustment unit configured by an electric pump and first and second solenoid valves, and that adjusts a brake fluid discharged by the electric pump to a first liquid pressure by the first solenoid valve and introduces the first liquid pressure to a rear wheel cylinder of the vehicle, and adjusts the first liquid pressure to decrease to a second liquid pressure by the second solenoid valve and introduces the second liquid pressure to the servo chamber; and
a regenerative coordination unit configured by an input piston that operates in conjunction with a braking operation member of the vehicle and an input cylinder fixed to the master cylinder, and in which a gap between the master piston and the input piston is controlled by the second liquid pressure.
2. The braking control device for the vehicle according to claim 1 , wherein the second solenoid valve is arranged in series with respect to the first solenoid valve in a reflux path of the brake fluid including the electric pump.
3. A braking control device for a vehicle in which a regenerative generator is provided on a rear wheel of the vehicle, the braking control device for the vehicle comprising:
a master unit configured by a master cylinder and a master piston, and includes a master chamber connected to a front wheel cylinder of the vehicle and a servo chamber that applies a forward force opposing a reverse force applied to the master piston by the master chamber to the master piston;
a pressure adjustment unit configured by an electric pump and first and second solenoid valves, and that adjusts a brake fluid discharged by the electric pump to a first liquid pressure by the first solenoid valve and introduces the first liquid pressure to the servo chamber, and adjusts the first liquid pressure to decrease to a second liquid pressure by the second solenoid valve and introduces the second liquid pressure to a rear wheel cylinder of the vehicle; and
a regenerative coordination unit configured by an input piston that operates in conjunction with a braking operation member of the vehicle and an input cylinder fixed to the master cylinder, and in which a gap between the master piston and the input piston is controlled by the first liquid pressure.
4. The braking control device for the vehicle according to claim 3 , wherein the second solenoid valve is arranged in series with respect to the first solenoid valve in a reflux path of the brake fluid including the electric pump.