Economical Speed Apparatus for Vehicle Fuel Efficiency
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Solution Overview
Problem
Drivers frequently engage in unnecessary rapid acceleration when approaching intersections due to unknown optimal speeds, leading to increased fuel consumption and environmental pollution.
Innovation Solution
An apparatus and method that measures intersection-passing time and velocity, calculates the distance to the next intersection, and acquires traffic signal device conditions to determine an optimal driving velocity for reducing fuel consumption, which includes calculating the velocity to pass the next intersection without waiting for a light and deciding whether to operate the idle stop control function based on fuel consumption comparisons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If drivers rapidly accelerate vehicles between intersections due to unknown optimal speeds, then they can reach the next intersection faster, but fuel consumption increases and environmental pollution worsens
Solution Approach 1:
The system performs preliminary actions by acquiring traffic signal device condition information in advance before the vehicle reaches the next intersection. The calculating unit computes the economical speed profile beforehand based on the distance to the next intersection and the traffic light status, then provides this information to the driver ahead of time, allowing the driver to adjust speed proactively rather than reacting with rapid acceleration
Solution Approach 2:
The system implements feedback by continuously monitoring the vehicle's passing velocity through the current intersection and using this information along with the distance to the next intersection and traffic signal conditions to calculate and update the economical speed profile. This closed-loop feedback mechanism enables dynamic speed adjustment recommendations that adapt to actual driving conditions
2Loss of time
If drivers rapidly accelerate vehicles between intersections, then travel time is reduced, but exhaust gas emissions increase causing environmental pollution
Solution Approach 1:
The system acquires traffic signal device condition information in advance and calculates the economical speed profile before the vehicle reaches the next intersection. By providing this pre-calculated speed guidance to the driver, the system enables smooth, continuous acceleration rather than rapid acceleration followed by sudden braking, thereby reducing both travel time and exhaust gas emissions
Solution Approach 2:
The system changes the driving parameter from rapid acceleration to economical speed maintenance by calculating and recommending an optimal speed profile based on the distance to the next intersection and traffic light conditions. This parameter change transforms the driving behavior from aggressive acceleration to controlled, efficient speed management, reducing both time loss and harmful emissions
3Use of energy by moving object
If drivers maintain lower speeds to reduce fuel consumption, then fuel efficiency improves, but travel time between intersections increases
Solution Approach 1:
The system applies dynamics by calculating a dynamic economical speed profile that adapts to changing conditions such as the distance to the next intersection and the traffic signal device status. Rather than recommending a fixed low speed, the system provides a variable speed profile that optimizes fuel efficiency while considering the time constraint imposed by the traffic light timing, enabling the driver to maintain higher speeds when beneficial and lower speeds when necessary
Solution Approach 2:
The system changes the speed parameter dynamically based on the calculated economical speed profile, which considers both fuel efficiency requirements and travel time constraints. By adjusting the recommended speed according to the traffic signal conditions and distance to the next intersection, the system achieves an optimal balance between fuel efficiency and travel time
Data Source
AI summary
Provided is directed to reduce unnecessary fuel consumption due to unnecessary rapid acceleration when a vehicle drives between intersections, and it is an object to allow for economical driving by reducing the fuel cost, and minimize environmental pollution by minimizing the exhaust gas of vehicle, by providing an economical speed for drivers such that vehicles that have passed through an intersection in accordance with the present traffic light economically drives to the next intersection.