Dual Automated Driving Control Switching After False End Commands
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Solution Overview
Problem
Existing automated driving systems cannot continue automated driving control when an incorrect instruction to end the control is issued, even if one of the control systems is still operational.
Innovation Solution
A travel control device with dual automated driving control units, an abnormality detection unit, and switching units that allow the system to wait before ending automated driving control, ensuring that control can be maintained if one unit is abnormal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the automated driving control ends immediately when an instruction is received, then the response speed is improved, but the reliability deteriorates because premature ending occurs due to incorrect instructions
Solution Approach 1:
The system performs preliminary verification by checking whether an abnormality is detected in the automated driving control unit before ending the automated driving control. This preliminary action prevents premature termination due to incorrect instructions while maintaining fast response when actual abnormalities occur.
Solution Approach 2:
The system uses feedback from the abnormality detection unit to determine whether to end the automated driving control. The feedback mechanism ensures that the control continues when only incorrect instructions are received, while properly ending when actual abnormalities are detected, thus balancing response speed and reliability.
2Reliability
If the automated driving control continues without verification, then the reliability is improved, but the device complexity increases due to additional verification mechanisms
Solution Approach 1:
The abnormality detection function is merged with the existing control system architecture, integrating verification capabilities into the current control flow rather than adding completely separate verification systems. This reduces overall device complexity while maintaining reliability.
Solution Approach 2:
The permission unit serves multiple functions: it receives end instructions, verifies abnormality status, and controls the switching between automated and manual driving. This multi-functionality reduces the need for separate dedicated components, thereby reducing device complexity.
Data Source
AI summary
The travel control device includes an abnormality detection unit that detects an abnormality of the first automated driving control unit and the second automated driving control unit, a first switching unit that switches to the automated driving control of the other of the first automated driving control unit and the second automated driving control unit when one of the first automated driving control unit and the second automated driving control unit during the automated driving control is detected to be abnormal, a permission unit that instructs the end of the automated driving control to the first automated driving control unit and the second automated driving control unit, and a second switching unit that switches between the automated driving control and the manual driving control in response to an instruction from the permission unit.