Triple redundancy failsafe for steering systems
AssigneeSteering Solutions IP Holding Corporation
InventorJoachim J. Klesing
Life of this patent
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Abstract
One or more embodiments are described herein of a controller system in a steering system. The controller system includes a first electric control unit (ECU) that operates as a primary ECU of the controller system, the primary ECU sending a motor command to a motor to generate torque. The controller system further includes a second ECU that operates as a backup for the first ECU. The operation as the backup includes monitoring the first ECU for a failure. In response to detecting the failure at the first ECU, the second ECU operates as the primary ECU of the controller system, and initiates a domain controller to operate as the backup ECU.
Claims20
A system for triple redundancy failsafe for a steering system, the system comprising:
- a controller module comprising:
- a first electric control unit (ECU) configured to operate as a primary ECU to send a motor command to a motor to generate torque;
- a second ECU configured to operate as a backup for the first ECU;
- and
- in response to a failure of at the first ECU:
- send a notification to a domain controller of the failure;
- and
- operate as the primary ECU;
- and
- the domain controller configured to operate as a backup for the second ECU in response to receiving the notification of the failure.
A steering system comprising:
- a controller module comprising:
- a first electric control unit (ECU) configured to operate as a primary ECU of the controller module, the primary ECU sending a motor command to a motor to generate torque;
- a second ECU configured to operate as a backup for the first ECU, the operation as the backup comprising:
- monitoring the first ECU for a failure;
- in response to detecting the failure at the first ECU:
- operating as the primary ECU of the controller module;
- and
- initiating a domain controller to operate as the backup ECU.
A controller system in a steering system, the controller system comprising:
- a first electric control unit (ECU) configured to operate as a primary ECU of the controller system, the primary ECU sending a motor command to a motor to generate torque;
- a second ECU configured to operate as a backup for the first ECU, the operation as the backup comprising:
- monitoring the first ECU for a failure;
- in response to detecting the failure at the first ECU:
- operating as the primary ECU of the controller system;
- and
- initiating a domain controller to operate as the backup ECU.
Dependencies are inferred from the claim text.