Dynamic EV Wireless Charging on Uneven Electric Roads
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dynamic wireless charging systems for electric vehicles face inefficiencies due to road surface unevenness, which can lead to sub-optimal charging and potential damage to the vehicle's recharging system, as they require a high safety margin to accommodate irregularities like bumps and potholes.
Innovation Solution
A system and method that utilize a controller to assess road surface unevenness and adapt the electric vehicle's driving route, current trajectory, or recharging configuration to optimize charging efficiency, including the use of sensor systems and vehicle-to-everything communication to gather data and dynamically adjust the inductive power transfer couplers' height to maintain efficient charging while ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high safety margin is chosen to avoid damage to the lowest underfloor parts, then reliability is improved, but charging efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts the vertical position of the receiving power transfer coupler based on real-time road surface measurements. The coupler height is adaptively controlled to maintain optimal charging efficiency while avoiding damage from road irregularities, transitioning from a static high safety margin approach to a dynamic adaptive approach.
Solution Approach 2:
The system performs preliminary assessment of road surface unevenness before charging operations begin. By measuring road irregularities in advance and pre-adjusting the coupler position, the system prevents damage before it occurs while maintaining optimal charging efficiency, rather than relying on a consistently high safety margin.
2Productivity
If the distance between transmitting and receiving devices is reduced to improve charging efficiency, then charging efficiency is improved, but reliability deteriorates due to potential damage from road irregularities
Solution Approach 1:
The system implements dynamic height adjustment of the receiving power transfer coupler based on real-time road surface conditions. This allows the coupler to maintain an optimally small distance for efficient charging while automatically raising or lowering to avoid damage from bumps and irregularities, resolving the contradiction between efficiency and safety.
Solution Approach 2:
The system uses sensors to continuously measure road surface unevenness and feeds this information back to the control system, which adjusts the coupler height accordingly. This closed-loop feedback mechanism ensures the coupler maintains optimal charging distance while preventing damage from road irregularities.
3Productivity
If frequent adjustments of recharging configuration are made to adapt to road conditions, then charging efficiency is maintained, but device complexity increases
Solution Approach 1:
The system uses the vehicle's existing sensor systems (cameras, LIDAR, road surface scanners) to autonomously detect and assess road irregularities. The control system automatically processes this data and adjusts the coupler height without requiring complex external control mechanisms, allowing the system to self-adapt to road conditions using readily available vehicle systems.
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
This approach enhances charging efficiency and reduces the need for frequent recharging configuration adjustments by selecting routes and paths with fewer irregularities and dynamically adjusting the charging system to match road conditions, thereby improving overall charging performance and safety.
Implementation Method 1
The transmitting power transfer couplers interact inductively with respective receiving devices at the underfloor of the vehicles
Data Source
AI summary
A method and a system for dynamic wireless charging of an electric vehicle on electric roads are disclosed. The method includes determining, by a system controller of the electric vehicle, that a traction battery of the electric vehicle needs to be recharged. The method also includes assessing, by the system controller, road surface unevenness along an electric road considered for recharging the electric vehicle. The method further includes adapting, by the system controller based on the assessed road surface unevenness, at least one of a driving route of the electric vehicle, a current driving trajectory of the electric vehicle, a recharging configuration of the electric vehicle, or a combination thereof.