Driving Assistance Device Steering Control Suppression
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Solution Overview
Problem
Conventional driving support systems during automatic driving require drivers to perform non-driving operations, which can be bothersome and distract from focusing on driving.
Innovation Solution
A driving support apparatus and method that suppresses and gradually reduces the control variables of traveling control devices, such as steering assist and angle control systems, until a follow-up operation is detected, allowing drivers to concentrate on driving without interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a predetermined operation is required to continue automatic driving, then driver attention can be monitored, but the driver is bothered and cannot concentrate on driving
Solution Approach 1:
The patent extracts the attention monitoring function from manual driver operations by detecting steering wheel operation patterns automatically. The system monitors the degree of steering operations to determine driver attention without requiring separate driver actions, thus maintaining reliability while eliminating the distraction of predetermined operations.
Solution Approach 2:
The system performs self-monitoring of driver attention through automatic detection of steering wheel usage patterns. The steering wheel operation detection unit continuously analyzes driver input without requiring the driver to perform additional operations, allowing the system to self-assess attention levels and maintain control accordingly.
2Ease of operation
If automatic driving control is maintained for long duration, then driving convenience is improved, but driver awakening level may decrease
Solution Approach 1:
The system implements continuous feedback by monitoring steering wheel operation patterns and driver responsiveness in real-time. When the driver fails to respond appropriately to system-suppressed steering operations, the system detects reduced awakening levels and adjusts control accordingly, maintaining both convenience and safety through dynamic adaptation.
Solution Approach 2:
The patent applies dynamic control by adjusting the degree of steering suppression based on detected driver awakening levels. The system transitions from higher suppression when attentive to lower suppression when drowsiness is detected, creating a dynamic balance between automation convenience and driver alertness monitoring.
3Reliability
If the controlled variable is suppressed during automatic driving, then driver follow-up operation is detected, but vehicle control responsiveness may be reduced
Solution Approach 1:
The system applies partial suppression of steering control rather than complete suppression, maintaining enough responsiveness for safe vehicle control while still detecting driver follow-up operations. This partial action approach allows the system to monitor driver engagement without过度 restricting natural driver responses.
Data Source
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AI summary
The invention is equipped with a travelable range detection device that detects a travelable range of a vehicle, a traveling control device that controls the vehicle such that the vehicle travels in the travelable range detected by the travelable range detection device, a vehicle control device that controls a behavior of the vehicle, and a controller that executes control to suppress a controlled variable of the traveling control device until a driver's follow-up operation for causing the vehicle to follow the travelable range by the vehicle control device is detected after start of control of the traveling control device.