Patent ID: 11932215
Assignee: ROBERT BOSCH GMBH
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A braking system for a vehicle, comprising:
an actuation circuit including a positioning assemblage, actuatable using an actuation device, for generating a braking request signal;
an active circuit including a pressure generation device that has an electric motor and a displacer piston that is translationally movable using the electric motor, the active circuit further including at least one wheel brake hydraulically coupled to the pressure generation device, and an isolation valve that is disposed in a hydraulic path between the pressure generation device and the wheel brake; and
a control apparatus that is connected to the positioning assemblage of the actuation circuit, to the pressure generation device, and to the isolation valve, the control apparatus being configured: to ascertain from the braking request signal a target brake pressure necessary in the active circuit, to apply control to the electric motor of the pressure generation device to establish an actual brake pressure in the active circuit in accordance with the target brake pressure, and, if a condition exists that the braking request signal is constant over a predetermined time period, to close the isolation valve for hydraulic decoupling of the wheel brake from the pressure generation device and to shut off the electric motor of the pressure generation device;
wherein when the condition that the braking request signal is constant over the predetermined time period is no longer satisfied, the control unit is configured to: effect a hydraulic recoupling of the pressure generation device to the wheel brake, based on a time gradient of the braking request signal: ascertain a target brake pressure necessary in the active circuit after a predetermined compensation time period by extrapolation of the braking request signal; and establish the actual brake pressure in the active circuit using the pressure generation device in such a way that the actual brake pressure in the active circuit reaches the target brake pressure upon expiration of the compensation time period.