Patent ID: 7695076

Claim:
A vehicle brake control device, comprising: a braking force generation unit that generates a braking force to wheels in a vehicle by generating a braking torque corresponding to the respective wheels; a brake control actuator that generates a braking torque for the braking force generation unit in accordance with operation of a brake operation member by a driver; and an electronic control unit that controls the braking torque generated by the braking force generation unit through output of a control signal to the brake control actuator, wherein the electronic control unit comprises: a vehicle body speed detection unit that detects a vehicle body speed; a target speed setting unit that sets a target speed for the vehicle body speed; a requisite braking torque calculation unit that calculates a requisite braking torque, which is required as a braking torque to be generated by the braking force generation unit, such that the vehicle body speed detected by the vehicle body speed detection unit reaches the target speed set by the target speed setting unit; an engine torque detection unit that detects an engine torque transmitted to driving wheels among the respective wheels; a driving wheel drive torque conversion unit that converts the engine torque detected by the engine torque detection unit into a drive torque that is applied to the driving wheels; and a braking torque distribution setting unit for the respective wheels that sets a distribution of the requisite braking torque to the respective wheels depending on a magnitude of the drive torque calculated by the driving wheel drive torque conversion unit, wherein the control signal is output to the brake control actuator so as to achieve a distribution of the requisite braking torque to the respective wheels as set by the braking torque distribution setting unit for the respective wheels, the braking torque distribution setting units for the respective wheels include a comparison unit that determines whether the requisite braking torque is less than the drive torque, the requisite braking torque is distributed to only the driving wheels of the respective wheels if the comparison unit determines that the requisite braking torque is less than the drive torque, and if the comparison unit determines that the requisite braking torque is equal to or greater than the drive torque, a first braking torque, which is equivalent to the drive torque, is distributed to the driving wheels, and a second braking torque, which is equivalent to a difference between the requisite braking torque and the drive torque, is distributed to the driving wheels and the driven wheels.