US 12,466,376 B2
Switching device for a brake system for a vehicle, brake system with a switching device and method for operating a switching device
Michael Belling, Renningen (DE); and Christian Kaufmann, Sindelfingen (DE)
Assigned to KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH, Munich (DE)
Appl. No. 17/771,791
Filed by Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH, Munich (DE)
PCT Filed Oct. 13, 2020, PCT No. PCT/EP2020/078712
§ 371(c)(1), (2) Date Apr. 25, 2022,
PCT Pub. No. WO2021/083659, PCT Pub. Date May 6, 2021.
Claims priority of application No. 10 2019 129 305.7 (DE), filed on Oct. 30, 2019.
Prior Publication US 2022/0371565 A1, Nov. 24, 2022
Int. Cl. B60T 13/66 (2006.01); B60T 8/17 (2006.01); B60T 8/88 (2006.01); B60T 8/92 (2006.01)
CPC B60T 13/662 (2013.01) [B60T 8/1708 (2013.01); B60T 8/885 (2013.01); B60T 8/92 (2013.01); B60T 2270/406 (2013.01); B60T 2270/413 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A switching device for a brake system for a vehicle, comprising:
a central control unit for controlling the brake system,
a redundant control unit which is connected or is connectable to the central control unit via a data bus to control a redundant brake system which is redundant to and independent of the brake system; and
a single monitoring device to read in both: (a) a first test signal from the central control unit to test a function of the central control unit, and (b) a redundant test signal from the redundant control unit to test a function of the redundant control unit;
wherein the first test signal includes a measured value, an evaluation result or a protocol of the central control unit, and the redundant test signal includes a measured value, an evaluation result or a protocol of the redundant control unit, and
wherein the monitoring device is configured to check or verify the measured value or the evaluation result or the protocol of the first test signal, by comparing it with another measured value or another evaluation result or another protocol to detect whether the central control unit is functioning as expected, and the monitoring device is further configured to check or verify the measured value or the evaluation result or the protocol of the redundant test signal by comparing it with a third measured value or third evaluation result or a third protocol to detect whether the redundant control unit is functioning as expected.