Driving Mode Switching Control for Stable Emergency Handover
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Solution Overview
Problem
Current autonomous driving technologies face challenges in rapidly switching driving modes during emergencies, leading to potential safety accidents and discomfort for drivers, as they struggle to adjust driving stability and mode transitions effectively.
Innovation Solution
A driving mode switching device and method that determines mode changes based on driving, detection, and driver information, adjusting the transition section and turning control signals to swiftly switch between autonomous and manual driving modes, ensuring safety and minimizing driver discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving mode is switched rapidly during emergencies, then driving stability is improved and safety accidents are prevented, but driver discomfort increases due to abrupt transitions
Solution Approach 1:
The patent applies dynamics by making the transition section duration variable rather than fixed. The control device adjusts the transition section length dynamically based on driving conditions (e.g., vehicle speed, acceleration, road gradient) to optimize both safety and comfort. During emergencies, the transition can be rapid for stability, while during normal conditions, it can be gradual for comfort.
Solution Approach 2:
The patent changes the parameter of transition section duration based on detected driving conditions. The control device modifies the transition characteristics (such as the rate of change of steering angle or torque) according to real-time parameters like vehicle speed, acceleration, and road gradient, thereby resolving the contradiction between rapid switching for safety and gradual switching for comfort.
2Object-affected harmful factors
If the transition section is extended to reduce driver discomfort, then driver comfort is improved, but the response time during emergencies is delayed reducing safety
Solution Approach 1:
The transition section duration is made dynamic rather than static. The control device continuously adjusts the transition characteristics based on real-time driving conditions, allowing the system to provide gradual transitions for comfort during normal driving while enabling rapid transitions for safety during emergencies.
Solution Approach 2:
The patent modifies the transition parameter (transition section duration) based on detected driving conditions. When emergencies are detected (through sensors monitoring vehicle state and environment), the system changes the transition parameter to enable rapid mode switching, otherwise it maintains longer transitions for comfort.
3Reliability
If the turning control signal is adjusted abruptly during mode switching, then driving stability is improved for obstacle avoidance, but driver discomfort increases due to sudden changes
Solution Approach 1:
The patent applies dynamics by making the control signal transition characteristics variable. The control device adjusts the rate of change of the turning control signal based on driving conditions, enabling abrupt changes when necessary for stability while providing gradual changes for comfort during normal operations.
Solution Approach 2:
The patent changes the parameter of control signal transition rate based on detected driving conditions. The control device modifies how abruptly the turning control signal changes according to real-time parameters such as vehicle speed, acceleration, and road gradient, thereby resolving the contradiction between stability and comfort.
Data Source
AI summary
The present disclosure relates to a driving mode switching device and a driving mode switching method. Particularly, the driving mode switching device according to the present disclosure comprises: a driving mode switching determination unit for determining to switch a driving mode of a vehicle to either an autonomous driving mode or a manual driving mode on the basis of at least one from among driving information, detection information, and driver detection information; and a driving mode switching unit for controlling a transition section in which the driving mode is switched and/or the ratio of turning control signals in the driving modes on the basis of at least one from among the driving information, the detection information, and the driver detection information when it is determined that the driving mode is to be switched, and switching the driving mode by changing the turning control signal.