Method, system and device for controlling a vehicle brake system
AssigneeWABCO Europe BVBA
InventorsEric Matoy, Rainer Jollerichs, Dirk Wohltmann
Life of this patent
Estimating the term…
Abstract
To operate an electrically controlled pressurized-fluid brake system, an external brake request signal is received, a curve radius of a vehicle track of the vehicle is determined, at least one limit value is determined based on the curve radius, at least one variable representing a brake pressure to be supplied to wheel brakes is compared with the at least one limit value, the at least one variable is limited based on the comparison, the at least one variable is outputted, and braking pressure is supplied to the wheel brakes based on the outputted at least one variable.
Claims11
A method for operating an electrically controlled pressurized-fluid brake system of a vehicle on a vehicle track, the vehicle having wheel brakes, the method comprising the steps of:
- receiving, at a brake control unit of the vehicle, an external brake request signal;
- using the brake control unit to:
- one of determine and receive a radius of curvature of the vehicle track of the vehicle;
- determine at least one limit value based on the determined radius of curvature;
- compare at least one variable representing a brake pressure to be supplied to the wheel brakes of the vehicle with the at least one limit value;
- and
- limit the at least one variable based on the comparison;
- and
- supplying brake pressure to the wheel brakes based on the limited at least one variable.
A brake control unit for a vehicle brake system, the brake control unit comprising a signal interface configured to receive external brake request signals, and to output control signals to fluid valves of the vehicle brake system for wheel brakes of a vehicle, the brake control unit being configured to:
- one of determine and receive a radius of curvature of a vehicle track of the vehicle;
- determine at least one limit value based on the determined radius of curvature;
- compare at least one variable representing a brake pressure to be supplied to the wheel brakes of the vehicle with the at least one limit value;
- and
- limit the at least one variable based on the comparison, the at least one variable being included in at least one control signal for output to the fluid valves.
Dependencies are inferred from the claim text.