Vehicle Power Segment Timing for Dynamic Charging Lanes
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Solution Overview
Problem
Conventional techniques fail to adequately adjust the timing of power supply to vehicles based on their acceleration and deceleration, leading to inefficiencies and wasted time in supplying power from power supply segments.
Innovation Solution
A vehicle power supply system with a controller that estimates the timing of a vehicle reaching the next power supply segment based on vehicle velocity and acceleration, allowing power supply segments to start power supply at optimal times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If power supply segments start power supply at fixed intervals without considering vehicle motion dynamics, then the power supply system is simple to control, but delays occur in power supply timing
Solution Approach 1:
The controller performs preliminary estimation of the vehicle's arrival time at the next power supply segment by calculating based on current position, velocity, and acceleration. This allows the power supply segment to be activated at the optimal moment before the vehicle arrives, eliminating delays without requiring complex real-time adjustment mechanisms during power transfer.
Solution Approach 2:
The system transitions from static fixed-interval power supply activation to dynamic timing adjustment by incorporating vehicle velocity and acceleration measurements. The controller continuously updates the estimated arrival time and adjusts the power supply start timing accordingly, making the system adaptive to changing vehicle motion states while maintaining relatively simple control logic.
2Productivity
If power supply timing is adjusted based on vehicle velocity and acceleration, then power supply efficiency is improved, but measurement and control complexity increases
Solution Approach 1:
The controller implements a feedback mechanism by continuously monitoring the vehicle's position, velocity, and acceleration, then using this information to recalculate and adjust the estimated arrival time at the next power supply segment. This closed-loop approach ensures that power supply timing remains optimized even as vehicle dynamics change, improving efficiency without requiring overly complex measurement systems.
Solution Approach 2:
The system utilizes changes in vehicle motion parameters (position, velocity, acceleration) to dynamically adjust power supply timing. By mathematical estimation based on these parameters, the controller determines the optimal activation moment for power supply segments, achieving high efficiency while avoiding the need for complex real-time control algorithms.
Data Source
AI summary
A vehicle power supply system is configured to supply power to a vehicle from a power supply apparatus laid on a power supply lane of a vehicle travel path, the power supply apparatus includes a plurality of power supply segments laid in a preset interval along the power supply lane, and a controller configured to control the plurality of power supply segments. The controller is configured to estimate timing of the vehicle reaching a next power supply segment that supplies power next after a present power supply segment that is supplying power, from at least a vehicle velocity derived from a change in position of the vehicle, and cause the next power supply segment to start power supply at the timing estimated.