| 摘要 |
The invention relates to a braking system for a motor vehicle for actuating hydraulically actuatable wheel brakes (1), said system comprising: a first electrically controllable pressure source (2) for providing a brake pressure for actuating the wheel brakes; an electrically controllable pressure modulation device (6) for setting brake pressures that are individual to each of the wheel brakes (1), said device having an electrically actuatable inlet valve (60a-60d) and an electrically actuatable outlet valve (61a-61d) for each wheel brake (1); and a second electrically controllable pressure source (3, 3', 3'') for providing a brake pressure for actuating the wheel brakes, said source comprising a motor-pump unit (30) with an at least dual-circuit hydraulic pump (38a, 38b) and at least one low-pressure accumulator (33a, 33b), the low-pressure accumulator (33a) being connected to an output connection of at least one outlet valve (61a, 61b). The braking system is provided with a first electric energy supply unit (4) and a second electric energy supply unit (5) that is independent of the first electric energy supply unit. The first pressure source (2) can be supplied with electric energy by the first energy supply unit (4) and the second pressure source (3, 3', 3'') can be supplied with electric energy by the second energy supply unit (5), and the pressure modulation device (6) can be supplied with electric energy by the first energy supply unit (4) and by the second energy supply unit (5). |
