Steering Control Apparatus Shared Resource Manager
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Solution Overview
Problem
Current steering systems face challenges in redundancy and reliability, particularly in ensuring that access to shared resources does not overlap between multiple steering control devices, which can lead to simultaneous access conditions and reduced system performance.
Innovation Solution
A steering control apparatus and method that employs a shared resource manager to manage access rights using binary semaphores, preventing overlapping access and implementing distributed arbitration control to ensure redundancy and reliability by controlling access to shared resources such as steering motors and CAN communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access rights to shared resource are managed to prevent overlap, then reliability is improved, but device complexity increases
Solution Approach 1:
The access management functionality is merged into a dedicated shared resource manager component that handles access requests from multiple steering control devices. Instead of each device implementing its own complex access control logic, the management function is combined into a single centralized manager that uses semaphore mechanisms to track and control access rights, simplifying individual device complexity while ensuring reliable access control.
2Loss of time
If binary semaphore technique is used for access control, then synchronization time is optimized, but computational overhead increases
Solution Approach 1:
The system uses binary semaphore parameters (locked/unlocked states) to control access timing. By changing the parameter state of the semaphore based on access requests and releases, the system optimizes synchronization time by allowing immediate access when the resource is free while maintaining minimal computational overhead through the simple binary state transitions rather than complex timing mechanisms.
Data Source
AI summary
The present disclosure relates to a steering control apparatus and method, and a steering system. The steering controller manages the access right to the shared resource so that the access to the shared resource shared with the other steering controller is not overlapped with the other steering controller by using the shared resource manager, and controls the steering of the vehicle by accessing the shared resource according to the access right to the shared resource.