Brake system and two methods for operating such a brake system

摘要

For each of the wheel brakes 8a-8d, the first electrically operated wheel valve 6a-6d designed to open when the power supply is cut off and the second electrically operated wheel valve designed to close when the power supply is cut off (7a-7d), the first electrically operated pressure source 5 connected to the first wheel valves 6a-6d via the first brake supply line 13, which is an electrically operated circuit separation valve ( 9) two first wheel valves 6c, 6d of the first wheel valves are disposed by the first brake supply line 13 and by its electrically operated circuit separation valve 9 the first pressure source The pressure source (5), a second electrically operated pressure source (2), which can be hydraulically disconnected from (5), and a pressure medium storage container (4), particularly at atmospheric pressure, Here, the circuit separation valve 9 is designed to open when the power supply is cut off. High, the second electrically operated pressure source 2 is connected to the second wheel valves 7a-7d via the second brake supply line 33, at least four hydraulically operated wheel brakes 8a -8d) for a vehicle brake system, and a method for operating the brake system.