Autonomous Driving Mode Switching for Temporary Driver Takeover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing autonomous driving vehicle systems burden drivers with frequent state switching when temporary intervention is required, as they need to manually control the vehicle from autonomous or partial autonomous modes, leading to driver fatigue and inconvenience.
Innovation Solution
An autonomous driving vehicle system that includes a peripheral information detection unit, a traveling plan generation unit, and a driving state switching unit, which dynamically switches between autonomous, cooperative, and manual driving states based on operation amounts and duration counts, allowing for seamless transitions and reducing driver burden by reflecting driver intentions and actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driver performs switching among driving modes using a switch, then the driver can control the vehicle in different modes, but the driver feels burdened due to frequent manual intervention
Solution Approach 1:
The system enables automatic switching between autonomous driving state and manual driving state based on detected driver operations (steering, acceleration, braking). The driving state switching unit automatically transitions states without requiring manual switch operation when driver intervention is detected, allowing the system to serve itself in determining appropriate driving modes.
Solution Approach 2:
The system continuously monitors driver operations through operation amount detection and duration count measurement. Based on this feedback regarding driver input magnitude and persistence, the driving state switching unit automatically transitions between autonomous and manual driving states, creating a closed-loop control system that adapts to driver needs.
2Ease of operation
If the driver operates the switch for temporary intervention, then the driver can take control when needed, but the driver needs to operate the switch again to return to autonomous mode
Solution Approach 1:
The system automatically returns to autonomous driving state after temporary manual intervention by detecting when driver operations cease. The driving state switching unit monitors the absence of driver input and autonomously transitions back to autonomous mode without requiring the driver to manually switch states, making the system self-rectifying.
Solution Approach 2:
The system prepares for automatic state transition by continuously monitoring driver operation duration and magnitude. When driver operations exceed predetermined thresholds, the system is already positioned to automatically switch to manual driving state, and when operations subside, it is ready to automatically return to autonomous state, eliminating delays.
3Adaptability or versatility
If the system uses fixed threshold values for state switching, then the control logic is simple, but the system cannot adapt to varying driver behavior patterns
Solution Approach 1:
The system employs dynamic thresholds for operation amount and duration count that can adapt to different driving conditions and driver behaviors. The driving state switching unit adjusts switching criteria based on detected patterns, enabling the system to accommodate varying driver intentions while maintaining manageable control logic through structured adaptation rules.
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.