Method and device for controlling a motor vehicle comprising an electronically controlled brake system with driving dynamics control

• Main Authors: VOIGTMANN THOMAS, KUGLAND OLIVER, SCHONLAU JUERGEN, RUEFFER MANFRED, QUEISSER TORSTEN, MERKEL DIETER
• Format: Patent
• Language: English
• Published: 20.08.2009
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

A motor vehicle includes an electrohydraulic brake system with driving dynamics control, a master brake cylinder (1) operable by means of a brake pedal (43), at least one pressure fluid supply device (94, 95) which can be actuated by an electronic control unit and the pressure of which can be applied to wheel brakes (75, 76, 77, 78) of the vehicle which are connectable to the master brake cylinder (1), on the other hand, by way of at least one hydraulic connection (73, 74) that is closable by means of a separating valve (80, 81), each one inlet valve (82, 83, 84, 85) and one outlet valve (86, 87, 88, 89) connected upstream of the wheel brakes (75, 76, 77, 78), as well as with a device for detecting brake application which comprises a magnet (35) as a signal transmitter and a sensor element (36). In order to enable reliably monitoring a piston of the master cylinder and detect the driver's request over the entire actuating travel also during a driving dynamics control operation, the sensor element (36) upon piston movement of the master cylinder (1) senses a change in the magnetic field and outputs a digital signal and an analog signal, that the two signals are passed on to an electronic control unit, and that the two signals are evaluated in the electronic control unit.