Abstract
The brake for electric vehicles and hybrid electric vehicles requires suppression of deceleration variation by the cooperative brake control of friction brake and regenerative brake, which should not offer the driver discomfort feeling. We have developed electric servo brake system which control brake pressure using motor cylinder stroke. In this paper, the hydraulic pressure controller using motor cylinder stroke is described. By using the motor cylinder stroke, the controller fulfills servo performance and control stability under fluctuation characteristic of brake system. In addition, the controller realizes brake requirements for the case of emergency brake.
