Brake fluid pressure control apparatus for vehicle

摘要

A brake fluid pressure control apparatus for a vehicle includes a parameter calculation unit configured to calculate a rollover detection parameter; and a steering maneuver determination unit configured to determine whether an abrupt steering maneuver is made. The parameter calculation unit is configured to calculate a first composition roll angle as the rollover detection parameter, by combining at a predetermined weight assignment ratio a first roll angle equivalent to an actual roll angle with a second roll angle obtained using a parameter which changes with a phase earlier than the first roll angle, and to calculate the first composition roll angle by changing the weight assignment ratio such that a weight of the second roll angle is higher when the steering maneuver determination unit determines that an abrupt steering maneuver is made than when the steering maneuver determination unit determines that the abrupt steering maneuver is not made.

主权项

1. A brake fluid pressure control apparatus for executing rollover prevention control, in which a brake is applied to at least one wheel of a vehicle at a timing when a rollover tendency of the vehicle is detected through a rollover detection parameter while the vehicle is turning, the brake fluid pressure control apparatus comprising:
a parameter calculation unit that calculates the rollover detection parameter; and a steering maneuver determination unit that determines whether or not an abrupt steering maneuver is made, wherein the parameter calculation unit calculates a first composition roll angle as the rollover detection parameter by combining, at a predetermined first composition roll angle weight assignment ratio, a first roll angle with a second roll angle, the first roll angle being equivalent to an actual roll angle and the second roll angle being obtained using a parameter which changes with a phase earlier than the first roll angle, and wherein the parameter calculation unit calculates the first composition roll angle by changing the first composition roll angle weight assignment ratio such that a weight of the second roll angle is higher when the steering maneuver determination unit determines that the abrupt steering maneuver is made than when the steering maneuver determination unit determines that the abrupt steering maneuver is not made.