Method for controlling a motor vehicle brake system in case of a fault
AssigneeAUMOVIO Germany GmbH
InventorsFelix Alexander Fertig, Eberhard Münz
Life of this patent
Estimating the term…
Abstract
A method for controlling a motor vehicle brake system having a brake pedal unit with sensor arrangement for determining a driver braking demand and an electric pressure-providing device comprises determining a driver braking demand with a sensor arrangement for a brake pedal unit; activating an electric pressure-providing device on the basis of the driver braking demand in a first brake-by-wire operating mode corresponding to a fault-free case; monitoring pressure and volume of fluid provided for wheel brakes; and switching to a fallback mode operating mode or a second brake-by-wire operating mode on the basis of a system volume in the event of a fault.
Claims15
A method for controlling a motor vehicle brake system, comprising:
- determining a driver braking demand with a sensor arrangement for a brake pedal unit;
- activating an electric pressure-providing device on the basis of the driver braking demand in a first brake-by-wire operating mode corresponding to a fault-free case;
- monitoring pressure and volume of fluid provided for wheel brakes;
- and
- switching to a fallback mode operating mode or a second brake-by-wire operating mode on the basis of a system volume in the event of a fault.
A hydraulic motor vehicle brake system comprising:
- a brake pedal unit;
- a sensor arrangement for determining a driver braking demand from the brake pedal unit;
- an electric pressure-providing device;
- and
- a control unit with instructions for:
- determining the driver braking;
- activating the electric pressure-providing device on the basis of the driver braking demand in a first brake-by-wire operating mode corresponding to a fault-free case;
- monitoring pressure and volume of fluid provided for wheel brakes;
- and
- switching to a fallback mode operating mode or a second brake-by-wire operating mode on the basis of a system volume in the event of a fault.
Dependencies are inferred from the claim text.