Curved-Road Speed Control Using Occupant Deceleration Confirmation
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Solution Overview
Problem
Conventional vehicle speed control systems require frequent occupant intervention for deceleration before entering curved roads, leading to a burdensome experience.
Innovation Solution
A vehicle speed control system that includes an information processor to confirm with the occupant whether speed reduction is necessary before entering a curved road, using detection devices to gather data on road curvature and vehicle speed, and adjusts deceleration based on past records or occupant input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle speed control device requires occupant intervention for deceleration before entering curved roads, then the deceleration control can be adjusted according to occupant needs, but the operation becomes burdensome and frequent intervention is required
Solution Approach 1:
The system automatically determines whether deceleration is necessary by analyzing detection information about curved roads and vehicle state, and autonomously executes deceleration control without requiring occupant intervention. The system serves itself by making decisions based on predefined conditions, eliminating the need for frequent manual operations while maintaining appropriate speed control before curved roads
Solution Approach 2:
The system continuously receives detection information about the road environment and vehicle state, processes this information to determine whether deceleration conditions are met, and adjusts vehicle speed accordingly. This closed-loop feedback mechanism enables automatic adaptation to changing conditions without requiring manual intervention
2Extent of automation
If the vehicle speed control device autonomously determines deceleration without occupant confirmation, then the operation becomes more automated and less burdensome, but the system may make incorrect decisions without proper judgment
Solution Approach 1:
The system performs preliminary analysis of detection information to determine whether deceleration conditions are met before executing speed reduction. By evaluating road curvature, vehicle speed, and other parameters in advance, the system ensures that autonomous deceleration decisions are made only when appropriate conditions exist, thereby maintaining reliability while achieving automation
Solution Approach 2:
The system monitors changes in detection parameters such as road curvature radius, vehicle speed, and distance to curved road to dynamically determine whether deceleration is necessary. By continuously evaluating parameter changes against predefined thresholds and conditions, the system maintains reliable automated decision-making that adapts to varying driving conditions
Data Source
AI summary
A vehicle speed control device includes: an information obtainer that obtains information regarding a curved road in a travel direction of a vehicle; and an information processor that outputs, under a predetermined condition, before the vehicle enters the curved road, a deceleration confirmation signal for confirming, with an occupant of the vehicle, whether reduction of vehicle speed is necessary.