Steering Control Module OTA Update Handover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing complexity of electronic control units (ECUs) in automobiles, driven by advanced electrical systems, leads to a higher probability of software errors during over-the-air (OTA) updates, potentially causing ECU malfunction.
Innovation Solution
A steering control device and method that transfers control rights from a first steering control module to a second steering control module during an OTA update, allowing the update to proceed without disrupting vehicle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If OTA update is performed on the first steering control module, then software can be updated remotely, but the ECU stops operating during the update process
Solution Approach 1:
The steering control device is divided into two independent control modules: a first steering control module for normal operation and a second steering control module for backup. This segmentation allows one module to perform OTA updates while the other maintains vehicle steering control, eliminating the stoppage issue.
Solution Approach 2:
The second steering control module acts as an intermediary that temporarily takes over control functions during the OTA update of the first module. This mediator ensures continuous steering control while the primary control module undergoes software updates.
2Reliability
If control right is transferred to second steering control module during OTA update, then vehicle control is maintained, but system complexity increases
Solution Approach 1:
The second steering control module is designed as a functional copy or replica of the first module, with identical control capabilities. This copying approach allows seamless takeover during updates while maintaining system reliability, and the redundancy is justified by the safety-critical nature of steering control.
Data Source
AI summary
The embodiments relate to a steering control device and method. Specifically, a steering control device according to an embodiment may include a first steering control module configured to delete a stored first code flash and store an update file according to an over-the-air (OTA) update when receiving an OTA update request, and a second steering control module to which a control right is transitioned from the first steering control module if the first steering control module receives the OTA update request.