Adaptive Driving Support by Driver Ability and Function
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Solution Overview
Problem
Existing vehicle driving support systems do not adequately consider a driver's current driving ability or the progression of their driving ability, leading to ineffective support for maintaining and improving driving skills.
Innovation Solution
A vehicle driving support system that includes an ability evaluation unit to assess a driver's skills across various driving functions, a determination unit to identify functions where the driver's ability falls below a standard and has not improved, and a vehicle control unit that performs substitution control to assist the vehicle in executing those functions, ensuring safe driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle performs all driving functions automatically to ensure safety, then the safety of driving is improved, but the driver's driving ability deteriorates due to lack of practice
Solution Approach 1:
The system applies different levels of automation to different driving functions based on the driver's ability evaluation. For functions where the driver shows inadequate ability or lack of improvement, the vehicle performs them automatically (high automation). For functions where the driver demonstrates adequate ability, the driver performs them manually (low automation). This localized differentiation resolves the contradiction by maintaining safety through automated support where needed while preserving driving ability through manual practice where appropriate.
Solution Approach 2:
The system dynamically adjusts the division of labor between driver and vehicle based on continuous evaluation of the driver's ability over time. The automation level is not fixed but changes according to the driver's progression, allowing the system to adapt to improving or deteriorating driving skills. This dynamic adjustment ensures both safety and maintenance of driving ability.
2Reliability
If the vehicle provides continuous automated driving support, then the safety of driving is improved, but the complexity of the system increases
Solution Approach 1:
The system segments driving functions into multiple categories (perceptual function, determination function, operation function) and evaluates driver ability separately for each category. This segmentation allows the system to provide targeted automated support only for specific functions where the driver shows inadequacy, rather than requiring complex continuous monitoring and support for all driving functions, thus reducing overall system complexity while maintaining safety.
3Productivity
If the system evaluates and monitors driver ability continuously, then the driver's driving ability can be maintained and improved, but the loss of time for evaluation and monitoring increases
Solution Approach 1:
The system performs ability evaluation at predetermined intervals (e.g., after a certain number of trips or time periods) rather than continuously during each driving moment. This preliminary scheduling of evaluations allows the system to maintain driving ability monitoring without consuming excessive real-time driving time, as evaluations are conducted at appropriate intervals rather than constantly interrupting the driving flow.
Data Source
AI summary
A vehicle driving support system evaluates the ability of a driver based on the driving operation of the driver for each of a plurality of driving-related functions possessed by the driver to drive the vehicle. In addition, the vehicle driving support system determines whether the ability of the driver is less than a predetermined standard for each of the driving-related functions and is not improved from then on, based on the past evaluation result of the ability of the driver. When determining that the ability of the driver is less than the predetermined standard for at least a part of the driving-related functions and is not improved from then on, the vehicle driving support system performs substitution control that causes a vehicle to perform the part of the driving-related functions instead so as to perform driving even if the driver does not exert the ability.