| 摘要 |
A control portion stores an actual brake force distribution characteristic line indicating relation between a front brake force allocated to the front wheel and a rear brake force allocated to the rear wheel, wherein the actual brake force distribution characteristic line is determined based on an ideal brake force distribution characteristic line so that, in achieving a given deceleration, a ratio of the front brake force to the rear brake force becomes smaller in the case that the distribution is calculated by using the actual brake force distribution characteristic line than in the case that the distribution is calculated by using the ideal brake force distribution characteristic line. The control portion calculates the distribution by using the actual brake force distribution characteristic line and determines, based on the calculated distribution, the wheel cylinder pressures to be generated at the front wheel cylinder the rear wheel cylinder.
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