EV Charging Station Alignment Using 3D Radar Pairing
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Solution Overview
Problem
Existing charging systems for electric vehicles face difficulties in aligning and pairing under adverse weather conditions due to debris, snow, or ice, which impede visual alignment, necessitating improved mechanisms for automatic alignment and pairing regardless of weather.
Innovation Solution
A three-dimensional positioning and orienting mechanism using sensor technologies, such as radar sensors, to align electric vehicles at charging stations, incorporating an active-alignment module, supervisory-control module, and robot-assisted-alignment module to ensure precise positioning and pairing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual alignment methods are used for charging station pairing, then the system is simple and easy to implement, but alignment accuracy deteriorates under adverse weather conditions such as snow, ice, or debris
Solution Approach 1:
The patent replaces visual alignment methods with radar-based detection systems. The radar sensors emit electromagnetic waves and detect reflections to determine vehicle position and orientation, substituting optical/mechanical alignment with electromagnetic field-based measurement that is unaffected by weather conditions.
Solution Approach 2:
The patent introduces radar sensors as an intermediary detection mechanism between the charging station and the vehicle. These sensors act as mediators that can penetrate adverse weather conditions (snow, ice, debris) to detect vehicle position, thereby enabling accurate alignment without direct visual contact.
2Productivity
If manual visual alignment by driver is used, then device complexity is low, but alignment time and operational efficiency increase
Solution Approach 1:
The charging station performs automatic vehicle detection and alignment without requiring driver intervention. The radar sensors autonomously detect the vehicle's position and orientation, and the system automatically adjusts or guides the vehicle into proper alignment, making the alignment process self-service rather than manual.
Solution Approach 2:
The patent implements a feedback control system where radar sensors continuously monitor vehicle position and provide real-time data to the control system. Based on this feedback, the system makes automatic adjustments to achieve precise alignment, creating a closed-loop control mechanism that improves efficiency while managing complexity through automation.
3Reliability
If radar sensors are deployed for three-dimensional positioning, then alignment precision improves under all weather conditions, but device complexity and cost increase
Solution Approach 1:
The radar sensors serve multiple functions: they detect vehicle position, determine orientation, measure distance, and provide continuous tracking throughout the alignment process. This multi-functionality justifies the added complexity by consolidating multiple detection capabilities into a single sensor type that handles all alignment requirements reliably.
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 accurate alignment and pairing of electric vehicles in various weather conditions, ensuring safe and efficient high-power charging, and facilitating portable charging stations for flexible infrastructure deployment.
Implementation Method 1
The active-alignment module is configured to detect and measure the three-dimensional orientation of an electric vehicle within a working range of automated actions within the charging station using sensor technologies, such as radar sensors
Data Source
AI summary
A system and method are disclosed for strategically positioning and aligning an object, for example, a vehicle at a charging station, parking station, port, depot or dock for orientation, alignment and pairing. The system includes an active-alignment module that measures the three-dimensional orientation of the object within the particular working envelope of the charging station and provides it to a supervisory-control module, which synchronizes the three-dimensional planar data, for example, plane 1 or plane 3 with planar data of the object, for example, plane 2 or plane 4, a robot-assisted-alignment module, and a vehicle-control module. The supervisory-control module acquires and synchronizes the 3D planar data of the active-alignment module (plane 1 or 3) to the planar data of vehicle or object (plane 2 or 4).