EV Navigation Routing by Battery Level and Wireless Charging Roads
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Solution Overview
Problem
Existing navigation systems fail to effectively guide electric vehicles along routes that optimize non-contact electric power feeding based on the vehicle's remaining battery level and the electric power feed capability of non-contact electric power feeders.
Innovation Solution
A navigation server and system that derive and recommend routes from a departure to a destination by considering the remaining battery level of the vehicle and the electric power feed capability of non-contact electric power feeders, using a processor to select routes with appropriate non-contact electric power feeders and output these routes to a terminal associated with the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple route candidates are provided with different non-contact electric power feeders, then route guidance can be optimized based on battery level and feeder capability, but the navigation system complexity increases due to need to evaluate multiple parameters
Solution Approach 1:
The navigation server segments the route selection process into distinct evaluation stages: first identifying multiple route candidates, then separately evaluating each route's non-contact electric power feeder capabilities, and finally synthesizing this information with battery level data to generate optimized route guidance. This segmentation allows complex multi-parameter evaluation to be handled in manageable steps.
Solution Approach 2:
The navigation server acts as an intermediary between the vehicle's battery management system and the route planning system. It receives battery level information, evaluates multiple route candidates against non-contact electric power feeder capabilities, and outputs optimized route recommendations. This intermediary role centralizes the complex evaluation logic in one component, reducing overall system complexity.
2Measurement precision
If the navigation system evaluates multiple route candidates with different non-contact electric power feed capabilities, then the route optimization accuracy improves, but the calculation time increases
Solution Approach 1:
The navigation server performs preliminary evaluation of non-contact electric power feeder capabilities for multiple route candidates before final route selection. By pre-assessing feeder capabilities and matching them with battery level requirements, the system reduces the computational burden during final route optimization, thereby decreasing calculation time while maintaining accuracy.
Solution Approach 2:
The system dynamically adjusts evaluation parameters based on the vehicle's current battery level. When battery levels are high, the system can afford to evaluate more route candidates with lower priority feeders. When battery levels are low, the system prioritizes routes with high-capability non-contact electric power feeders, reducing the number of candidates that need detailed evaluation and thus decreasing calculation time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient route guidance for electric vehicles to reach their destination using non-contact charging, optimizing battery levels and travel times by selecting routes with suitable electric power feed capabilities, thereby reducing the need for cable-connected charging.
Implementation Method 1
a first road provided with a first non-contact electric power feeder, and the second route includes a second road provided with a second non-contact electric power feeder
Data Source
AI summary
A navigation server includes a processor. The processor is configured to derive one of a first route and a second route as a route from a place of departure to a destination of a vehicle in accordance with a remaining level of a travel battery of the vehicle. The first route includes a first road provided with a first non-contact electric power feeder. The second route includes a second road provided with a second non-contact electric power feeder that is different in electric power feed capability from the first non-contact electric power feeder. The processor is configured to output the derived route as a recommended route to a terminal associated with the vehicle.