Autonomous Driving Mode Switching by Driver Intervention Thresholds
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Solution Overview
Problem
Drivers experience burden when switching between autonomous, cooperative, and manual driving modes due to the need for manual intervention and operation of switches during autonomous driving.
Innovation Solution
An autonomous driving vehicle system that includes a peripheral information detection unit, traveling plan generation unit, driving operation information acquisition unit, and driving state switching unit to dynamically switch between autonomous, cooperative, and manual driving modes based on detected operation amounts and duration counts, reducing the need for manual switch operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driver manually operates a switch to switch among autonomous driving modes, then the driving mode switching can be controlled, but the driver burden increases due to frequent manual intervention
Solution Approach 1:
The system enables automatic driving state switching by detecting the driver's operation amount and duration count, allowing the system to self-adjust between autonomous, cooperative, and manual driving states without requiring the driver to manually operate switches. The ECU automatically determines state transitions based on detected operation parameters.
Solution Approach 2:
The system continuously monitors the driver's operation amount and duration count, using this feedback information to dynamically adjust the driving state. The ECU receives feedback from operation detection units and automatically switches driving states based on predefined thresholds, creating a closed-loop control system that responds to driver behavior.
2Device complexity
If the system requires manual switch operation for mode switching, then precise mode selection is achieved, but the complexity of the control system increases
Solution Approach 1:
The system extracts the manual switch operation from the driving state transition process, removing the physical switch and its control mechanism. Instead, the system uses operation detection units to monitor driver behavior and automatically triggers state transitions based on detected operation amounts and duration counts, eliminating the need for manual switch intervention.
Solution Approach 2:
The system replaces the mechanical switch operation with an electronic detection and control system. The ECU electronically monitors operation parameters and automatically executes state transitions through electronic control signals, substituting the mechanical switch mechanism with an electronic automation system that reduces overall device complexity.
3Reliability
If the driver intervenes temporarily during autonomous driving, then safety is improved through human judgment, but the switching process becomes more cumbersome
Solution Approach 1:
The system implements dynamic driving state adjustment based on real-time detection of driver operation amount and duration count. When the driver temporarily intervenes, the system dynamically transitions from autonomous to cooperative or manual driving state, and automatically returns to autonomous state when intervention ends, creating a flexible and adaptive switching mechanism that responds to temporary driver needs without cumbersome operations.
Data Source
AI summary
A system includes an acquisition unit that acquires an operation amount or a duration count, and a switching unit that switches a driving state. The switching unit switches the driving state to the cooperative driving state when the operation amount is equal to or greater than an intervention threshold and less than a start threshold or the duration count is equal to or greater than a first threshold and less than a second threshold during the autonomous driving state, switches the driving state to the autonomous driving state when the operation amount is less than the intervention threshold or the duration count is less than the first threshold during the cooperative driving state, and switches the driving state to the manual driving state when the operation amount is equal to or greater than the start threshold or the duration count is equal to or greater than the second threshold.