US 12,441,395 B2
Method for monitoring an electrical steering device, and steering device
Michael Belling-Hoffmann, Renningen (DE); and Maximilian Pohlmann, Bruchsal (DE)
Assigned to KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH, Munich (DE)
Filed by KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH, Munich (DE)
Filed on Jul. 14, 2022, as Appl. No. 17/864,640.
Application 17/864,640 is a continuation of application No. PCT/EP2021/051626, filed on Jan. 25, 2021.
Claims priority of application No. DE102020102595.5 (DE), filed on Feb. 3, 2020.
Prior Publication US 2023/0033322 A1, Feb. 2, 2023
Int. Cl. B62D 5/04 (2006.01); B62D 15/02 (2006.01); G01B 21/22 (2006.01)
CPC B62D 5/0487 (2013.01) [B62D 15/021 (2013.01); G01B 21/22 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for monitoring an electric steering device of a vehicle while the vehicle is driving, the method comprising;
generating a nominal movement direction signal by a driver steering wheel angle sensor or a driver steering wheel torque sensor that cooperates with a driver steering wheel of the vehicle as a function of a direct manual actuation of the driver steering wheel by a driver of the vehicle, wherein the nominal movement direction signal characterizes a current nominal movement direction of the vehicle and processing the nominal direction movement signal in at least one electronic control device;
feeding surroundings data into the at least one electronic control device wherein the surroundings data is generated by a sensor device of the vehicle that scans surroundings of the vehicle touch free,
wherein the surroundings data characterizes surroundings of the vehicle and is configured to be processed by a first driver assistance system,
wherein the surroundings data facilitates detecting a current actual movement direction of the vehicle;
generating an actual movement direction signal by the at least one electronic control device based on the surroundings data wherein the actual movement direction signal characterizes a current actual movement direction of the vehicle;
comparing the actual movement direction signal with the nominal movement direction signal in the at least one electronic control device; and
generating a malfunction signal in the at least one electronic control device when the actual movement direction signal differs from the nominal movement direction signal by a predetermined amount wherein the malfunction signal indicates a malfunction of the electronic steering device, otherwise not generating the malfunction signal,
wherein at least one safety measure is performed if the malfunction signal is generated,
wherein the electric steering device is configured as an auxiliary steering device in which an electric steering actuator supports a mechanical steering device including a mechanical connection between a steering wheel and steered wheels of the vehicle. and
wherein the electric steering device is switched off when the safety measure is performed.