Vehicle Control Device Abnormality Countermeasure Logic
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Solution Overview
Problem
Existing vehicle control systems cannot reliably determine if a driver is in a normal state after abnormality countermeasure traveling control is initiated, leading to inappropriate stopping of safety measures when an occupant other than the driver operates the vehicle stop holding device.
Innovation Solution
A vehicle control device that executes driving assistance control, including abnormality countermeasure control, and continues it even if an actuator for the vehicle stop holding device is operated, ensuring safe stopping of the vehicle by preventing premature cessation of safety controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driving assistance control is stopped when the vehicle stop holding device is operated, then the ease of operation is improved, but the reliability deteriorates because the driver may still be in an abnormal state
Solution Approach 1:
The control unit acts as an intermediary between the vehicle stop holding device operation and the driving assistance control termination. It introduces a verification step that checks whether the driver is in a normal state before stopping the driving assistance control, preventing premature termination when the driver is still abnormal but an occupant operates the device
Solution Approach 2:
The system implements feedback by continuously monitoring driver state and using this information to determine whether to terminate driving assistance control. The control unit receives feedback about driver normality status and adjusts the control termination decision accordingly, ensuring reliability while maintaining ease of operation
2Productivity
If the abnormality countermeasure control is stopped when an actuator is operated, then the productivity is improved, but the safety deteriorates because the host vehicle cannot be safely stopped
Solution Approach 1:
The system performs preliminary verification of driver normality before allowing the abnormality countermeasure control to be stopped. By checking the driver state in advance before termination, the system ensures that stopping the control is safe and appropriate, preventing premature cessation that would compromise vehicle safety
Data Source
AI summary
A vehicle control device executes driving assistance control for assisting driving a host vehicle by a driver. The vehicle control device stops the driving assistance control under execution when a predetermined actuator of the host vehicle is operated. The vehicle control device executes, as the driving assistance control, abnormality countermeasure control for securing safe traveling of the host vehicle when the driver falls into an abnormal state having a problem in driving the host vehicle, and when the predetermined actuator is operated, and when the abnormality countermeasure control is not being executed, stops the driving assistance control, and when the abnormality countermeasure control is being executed, does not stop the driving assistance control including the abnormality countermeasure control.