Electronically controlled brake system for automobiles

An electronically controlled brake system for automobiles is disclosed. In the brake system, a first check valve (71) is mounted at an upstream position of an oil suction line (70) which guides pressurized oil from the master cylinder (12) to the inlet of the oil pump (30) during a TCS mode, while a second check valve (91) is mounted on an oil feeding line (90), which guides pressurized oil from the intermediate-pressure accumulator (40) to the inlet of the oil pump (30) through the oil suction line (70). The valves (71, 91) of both the oil suction line (70) and the oil feeding line (90) in the brake system are mechanically operated check valves. Therefore, the brake system of this invention is easily and simply controlled, and it is possible to accomplish the recent trend of compactness of hydraulic blocks, and reduce the production cost of the brake system.