US 12,275,382 B2
Valve device for a system, in particular a braking system for a vehicle, and system, in particular braking system for a vehicle
Michael Belling-Hoffmann, Renningen (DE); Alexander Matt, Bruchsal (DE); Christian Kaufmann, Sindelfingen (DE); and Dominikus Drayss, Wallduern (DE)
Assigned to KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH, Munich (DE)
Filed by Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH, Munich (DE)
Filed on Oct. 25, 2022, as Appl. No. 18/049,336.
Claims priority of application No. 10 2021 127 910.0 (DE), filed on Oct. 27, 2021.
Prior Publication US 2023/0132284 A1, Apr. 27, 2023
Int. Cl. B60T 13/68 (2006.01); B60T 15/02 (2006.01); G05D 16/20 (2006.01); H02H 3/08 (2006.01)
CPC B60T 13/683 (2013.01) [B60T 15/027 (2013.01); G05D 16/2013 (2013.01); H02H 3/08 (2013.01); B60T 2270/402 (2013.01); B60T 2270/413 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A valve device for a system for a vehicle, the system having a first control unit and a second control unit, wherein the control units are electrically connectable or connected to the valve device, comprising:
a valve unit for setting a pressure of a working medium for the system, wherein the valve unit has at least one actuator for actuating the valve unit;
a valve housing for accommodating the valve unit; and
an error protection module, which is arranged outside the valve housing, wherein the error protection module has a first supply port for the electrical attachment to the first control unit, a second supply port for the electrical attachment to the second control unit, a first main port for the electrical attachment to the first control unit, a second main port for the electrical attachment to the second control unit, a first connection port, which is electrically connected to the first supply port and to the second supply port, for the electrical connection to the actuator, a second connection port, which is electrically connected to the first main port and to the second main port, for the electrical connection to the actuator, a first electric protective circuit and a second electric protective circuit, wherein the first protective circuit is electrically connected between the first supply port and the second supply port, and the first connection port, wherein the second protective circuit is electrically connected between the second connection port, and the first main port and the second main port, wherein each of the protective circuits has at least one electrical fuse device and at least one diode element that are connected in series to the respective supply port or main port;
wherein the fuse device of the first protective circuit is connected between the first supply port and the first connection port, wherein the diode element of the first protective circuit is connected between the second supply port and the first connection port, wherein the fuse device of the second protective circuit is connected between the second connection port and the first main port, wherein the diode element of the second protective circuit is connected between the second connection port and the second main port.