Adaptive Deceleration Sensitivity Using Driver Brake Overrides
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Solution Overview
Problem
Existing driving support apparatuses are unable to perform driving support that is fully tailored to the characteristics of a driver, particularly in deceleration control, as they rely solely on pre-curves driving operations.
Innovation Solution
A driving support apparatus that includes a sensitivity setting unit to adjust the actuation sensitivity of deceleration control based on the control execution count and driver operation count, as well as a brake operation detection unit to detect brake overrides, allowing for dynamic adjustment of sensitivity to better match driver characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If deceleration control is executed based on driving operation before a curved road, then deceleration control can be provided, but driving support cannot be fully tailored to driver characteristics
Solution Approach 1:
The system implements feedback by detecting brake operations performed by the driver during deceleration control execution and using this information to adjust the actuation sensitivity. The sensitivity setting unit modifies the sensitivity based on the brake operation count, creating a closed-loop system that adapts to driver preferences over time.
Solution Approach 2:
The actuation sensitivity is made dynamic rather than fixed. The sensitivity setting unit changes the sensitivity level based on accumulated brake operation counts, allowing the system to transition from a static to a dynamic adaptation mechanism that evolves with driver behavior patterns.
2Adaptability or versatility
If the actuation sensitivity is fixed, then the control system is simple, but it cannot adapt to individual driver preferences and behaviors
Solution Approach 1:
The system performs self-adjustment by automatically modifying the actuation sensitivity based on detected brake operations. The sensitivity setting unit autonomously changes the sensitivity parameter without requiring manual driver input or calibration, allowing the system to self-optimize for individual driver characteristics.
Solution Approach 2:
The system uses feedback from brake operation detection to continuously refine the actuation sensitivity. By monitoring when drivers apply the brake during or before deceleration control, the system adjusts sensitivity to better match driver expectations and reduce unnecessary overrides.
3Ease of operation
If the sensitivity setting unit changes actuation sensitivity based on brake operation count, then driving support aligns better with driver characteristics, but the control system becomes more complex
Solution Approach 1:
The system automatically adjusts sensitivity without requiring driver intervention or manual calibration. The sensitivity setting unit autonomously processes brake operation data and modifies the actuation sensitivity, making the system adapt to driver preferences transparently and without additional operational complexity for the user.
Solution Approach 2:
The system performs preliminary adjustments by detecting brake operations and pre-adjusting the actuation sensitivity for future deceleration events. This proactive adaptation allows the system to anticipate driver preferences and optimize performance before the driver would manually adjust settings.
Data Source
AI summary
The driving support apparatus performs deceleration control of the vehicle. The driving support apparatus includes: a sensitivity setting unit configured to set an actuation sensitivity of a deceleration control; a deceleration execution unit configured to execute the deceleration control based on the actuation sensitivity; and a brake operation detection unit configured to detect a brake operation by a driver. The sensitivity setting unit changes the actuation sensitivity based on a control execution count which is the number of executions of the deceleration control and a driver operation count which is the number of operations of the brake operation.