Brake system for motor vehicles

A brake system for motor vehicles comprising:

• at least four hydraulically actuatable wheel brakes,
• a main pressure medium reservoir, which is at atmospheric pressure,
• a first electrohydraulic brake control device, which, for each of the four wheel brakes, comprises a wheel-specific outlet, and
• a second electrohydraulic brake control device, which, for each of the four wheel brakes, comprises a wheel-specific inlet, which is connected to the wheel-specific outlet, assigned to the wheel brake, of the first brake control device, a wheel-specific wheel outlet, which is connected to the wheel brake, and a hydraulic wheel connecting line, which connects the inlet to the wheel outlet,
• wherein, the second brake control device comprises a first pump with a first pressure side and a first suction side, wherein the first pressure side is connected to a first and a second wheel connecting line of the four wheel connecting lines, and a second pump with a second pressure side and a second suction side, wherein the second pressure side is connected to a third and a fourth wheel connecting line, and
• wherein the first pressure side is additionally directly connected hydraulically to the second pressure side.

A brake system for motor vehicles comprising:

• at least four hydraulically actuatable wheel brakes,
• a main pressure medium reservoir, which is at atmospheric pressure,
• a first electrohydraulic brake control device, which, for each of the four wheel brakes, comprises a wheel-specific outlet, and
• a second electrohydraulic brake control device, which, for each of the four wheel brakes, comprises a wheel-specific inlet, which is connected to the wheel-specific outlet, assigned to the wheel brake, of the first brake control device, a wheel-specific wheel outlet, which is connected to the wheel brake, and a hydraulic wheel connecting line, which connects the inlet to the wheel outlet,
• wherein, the second brake control device comprises a first pump with a first pressure side and a first suction side, wherein the first pressure side is connected to a first and a second wheel connecting line of the four wheel connecting lines, and a second pump with a second pressure side and a second suction side, wherein the second pressure side is connected to a third and a fourth wheel connecting line, and
• wherein the first suction side is directly connected hydraulically to the second suction side.