Vehicle Control Interface Neutral-State Manual Takeover
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Solution Overview
Problem
Existing vehicle control systems face usability issues during automatic driving modes, as occupants struggle to intuitively recognize and operate the interface states of operation receiving units such as steering wheels and pedals due to sudden changes during hands-off or eyes-off driving.
Innovation Solution
The system maintains the interface state of operation receiving units, such as steering wheels and pedals, in a neutral state during no-operation periods and transitions to manual driving modes, allowing intuitive recognition and operation by occupants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the interface state of operation receiving units is changed during automatic driving mode, then the automation level is improved, but the ease of operation deteriorates as occupants struggle to intuitively recognize the interface states
Solution Approach 1:
The system performs preliminary action by resetting the interface state of operation receiving units to a neutral state when transitioning from manual to automatic driving mode. This preparatory reset ensures that when the occupant needs to take control, the interface starts from a known neutral position, making it easier to recognize and operate intuitively.
2Ease of operation
If the interface state remains unchanged during automatic driving, then the ease of operation is improved for manual takeover, but the extent of automation deteriorates as the system cannot reflect actual driving operations
Solution Approach 1:
The system applies dynamics by making the interface state of operation receiving units changeable during automatic driving mode to reflect actual driving operations (such as steering angle, acceleration, braking), while automatically resetting to neutral state when manual takeover is detected. This dynamic adjustment maintains both automation fidelity and manual operability.
3Extent of automation
If the interface state changes suddenly during mode transition, then the automatic driving control is improved, but the reliability deteriorates due to potential control errors from skill degradation
Solution Approach 1:
The system performs preliminary action by detecting mode transitions and proactively resetting the interface state to neutral before manual operation begins. This prevents skill degradation by ensuring the interface is always in a predictable state when the occupant needs to take control, thereby maintaining control accuracy and reliability.
4Extent of automation
If the system requires occupants to adapt to changing interface states, then the automatic driving functionality is improved, but the loss of time increases due to adaptation period required
Solution Approach 1:
The system performs preliminary action by automatically resetting the interface state to neutral when transitioning to manual mode, eliminating the need for occupants to adapt to unexpected interface changes. This reduces adaptation time to near zero, as the interface is already in a known, intuitive state when manual control is needed.
Data Source
AI summary
A vehicle control system includes an operation receiving unit and an automatic driving control processor. The operation receiving unit receives an operation at least through an electrical signal. The operation is to be performed by an occupant of a vehicle. The automatic driving control processor performs an automatic driving control of the vehicle, and causes transition from an automatic driving mode to a manual driving mode to be performed in a predetermined case. The automatic driving mode is a driving mode in which the automatic driving control is performed. The manual driving mode is a driving mode in which manual driving based on the operation received by the operation receiving unit is performed. The operation receiving unit has an interface state that is unchanged from a neutral state in a no-operation period in which the operation on the operation receiving unit is not received.