Vehicle Control System Traffic Condition Correction
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Solution Overview
Problem
Existing vehicle control systems face challenges in maintaining fuel efficiency and riding comfort when preceding vehicles experience speed fluctuations or traffic jams, leading to abrupt changes in traveling behavior.
Innovation Solution
A vehicle control system that includes a travel control section, a first traffic condition quantity acquisition section, a second traffic condition quantity acquisition section, a correction parameter calculator, and a correction section, which acquires current and reference traffic conditions, calculates a correction parameter, and adjusts control parameters to stabilize vehicle speed, thereby reducing fuel efficiency and comfort issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the own vehicle follows the speed fluctuations of the preceding vehicle to maintain safe following distance, then the responsiveness to traffic conditions is improved, but the fuel efficiency and riding comfort deteriorate due to abrupt speed changes
Solution Approach 1:
The system performs preliminary action by acquiring traffic condition quantities in advance and calculating correction parameters before the own vehicle needs to respond. The correction parameter is calculated based on the difference between current and reference traffic condition quantities, allowing the system to proactively adjust control parameters to anticipate and smooth out speed fluctuations before they occur, thereby maintaining fuel efficiency while staying responsive to traffic conditions.
2Adaptability or versatility
If the own vehicle follows the speed fluctuations of the preceding vehicle, then the adaptability to traffic conditions is improved, but the riding comfort deteriorates due to abrupt speed changes
Solution Approach 1:
The system performs preliminary action by acquiring traffic condition quantities in advance and calculating correction parameters before the own vehicle needs to respond. The correction parameter is calculated based on the difference between current and reference traffic condition quantities, allowing the system to proactively adjust control parameters to anticipate and smooth out speed fluctuations before they occur, thereby maintaining adaptability while improving riding comfort.
Solution Approach 2:
The correction parameter acts as an intermediary between the raw traffic condition data and the vehicle control system. Instead of directly following the preceding vehicle's speed fluctuations, the system uses the correction parameter (derived from traffic condition quantity differences) to mediate and smooth the control adjustments, filtering out abrupt changes while maintaining necessary responsiveness to actual traffic conditions.
3Adaptability or versatility
If the vehicle speed control directly responds to preceding vehicle fluctuations, then the traffic condition adaptability is improved, but the fuel consumption increases due to frequent acceleration and deceleration
Solution Approach 1:
The system performs preliminary action by acquiring traffic condition quantities in advance and calculating correction parameters before the own vehicle needs to respond. The correction parameter is calculated based on the difference between current and reference traffic condition quantities, allowing the system to proactively adjust control parameters to anticipate and smooth out speed fluctuations before they occur, thereby maintaining traffic condition adaptability while reducing fuel consumption through smoother acceleration and deceleration patterns.
Data Source
AI summary
A vehicle control system includes a travel control section, a first traffic condition quantity acquisition section, a second traffic condition quantity acquisition section, a correction parameter calculator, and a correction section. The first traffic condition quantity acquisition section acquires a current traffic condition quantity on a road on which a preceding vehicle is traveling further ahead of a front vehicle. The second traffic condition quantity acquisition section acquires a reference traffic condition quantity, which is a traffic condition quantity that serves as a reference for the road on which the preceding vehicle is traveling. The correction parameter calculator calculates a difference between the current traffic condition quantity and the reference traffic condition quantity and calculates a correction parameter using the difference. The correction section corrects a control parameter used during execution of the vehicle speed control by the travel control section, using the correction parameter.