Patent ID: 7871135

Claim:
A vehicle motion control apparatus that is applied to a vehicle brake apparatus that comprises: a hydraulic pump; drive control means for driving the hydraulic pump; an accumulator storing brake fluid of which pressure is increased by the drive of the hydraulic pump by the drive control means; pressure-adjusting means for adjusting a wheel cylinder hydraulic pressure that is a brake hydraulic pressure in a wheel cylinder; detecting means for detecting an accumulator hydraulic pressure of the brake fluid in the accumulator; and brake operation signal output means for detecting a brake operation by a driver and outputting a signal corresponding to the brake operation, the vehicle motion control apparatus comprising: brake control means for executing a brake-by-wire control for generating the wheel cylinder hydraulic pressure corresponding to the signal outputted from the brake operation signal output means by controlling the pressure-adjusting means with the use of the accumulator hydraulic pressure; automatic pressurization control means for executing an automatic pressurization control for generating the wheel cylinder hydraulic pressure for controlling a vehicle motion independently of the brake operation by the driver by controlling the pressure-adjusting means with the use of the accumulator hydraulic pressure; and restricting means for restricting a degree of an increase in the wheel cylinder hydraulic pressure generated by the automatic pressurization control, in a case where the detected accumulator hydraulic pressure is less than a predetermined hydraulic pressure.