Vehicle Control Apparatus Mode Switching Alignment
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Solution Overview
Problem
Existing vehicle control systems fail to smoothly transition from self-driving to manual driving without causing an unusual feeling for the driver, as they do not effectively manage the switching process to ensure seamless control handover.
Innovation Solution
A vehicle control apparatus with an operation detector, direction detector, and electronic control unit that determines deviations in the actual and target vehicle directions, automatically switching to self-drive mode when deviations exceed a threshold and back to manual mode once aligned, ensuring smooth control transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the drive mode is switched from self-drive mode to manual drive mode immediately after override detection, then the driver can take control quickly, but the driver may feel unusual or disconnected when resuming control without proper alignment of actual and target directions
Solution Approach 1:
The system performs preliminary alignment of the actual traveling direction with the target traveling direction by controlling the actuator before switching from self-drive mode back to manual drive mode. This ensures that when the driver resumes control, the vehicle is already positioned and oriented correctly, preventing unusual feelings and ensuring smooth transition.
2Ease of operation
If the system continuously monitors and adjusts the actuator to match actual and target directions during self-drive mode, then the transition back to manual drive is smoother, but the control system complexity increases
Solution Approach 1:
The control system automatically monitors the deviation between actual and target traveling directions and self-corrects by controlling the actuator to align them. This self-service mechanism ensures smooth transition back to manual drive without requiring complex external intervention or additional hardware, as the system handles the alignment autonomously.
3Ease of operation
If the drive mode switches back to manual drive only when actual traveling direction matches target traveling direction, then driver comfort is improved, but the switching time is extended
Solution Approach 1:
The system continuously detects the actual traveling direction and compares it with the target traveling direction, using this feedback to control the actuator. When the deviation falls within a predetermined range, the system automatically switches back to manual drive mode. This feedback mechanism balances driver comfort with reasonable switching time by switching as soon as alignment is achieved.
Data Source
AI summary
A vehicle control apparatus including an operation detector detecting driving instruction, a direction detector detecting actual traveling direction of the vehicle, and a microprocessor. The microprocessor is configured to perform: determining whether a deviation of the actual traveling direction from target traveling direction according to the driving instruction is greater than or equal to predetermined deviation; switching to the self-drive mode when the deviation is greater than or equal to the predetermined deviation during traveling in the manual drive mode; and controlling the actuator in accordance with the driving instruction, the controlling including controlling the actuator so as to match the actual traveling direction with the target traveling direction after switching to the self-drive mode, and the switching including switching to the manual drive mode when the actual traveling direction is matched with the target traveling direction after switching to the self-drive mode.