EVSE Notification System for Tandem Parking Communication
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Solution Overview
Problem
The existing infrastructure for electric vehicle charging and parking is limited, particularly in urban environments where tandem parking is common, leading to issues with communication and access due to blocked charging stations and limited space, resulting in inconvenience for drivers trying to exit parked vehicles.
Innovation Solution
A notification system that includes an electric vehicle supply equipment (EVSE) and a vehicle charger, which scans identifiers of tandem parked vehicles and sends notification requests via a communication waveform to facilitate the movement of blocked vehicles, allowing for efficient use of charging stations and parking spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If tandem parking is implemented to increase parking capacity, then the number of vehicles that may be parked in a given space increases, but the first car is blocked from exiting the parking spot by subsequent cars
Solution Approach 1:
The patent introduces a notification system that acts as an intermediary between the first car (blocked vehicle) and subsequent cars (blocking vehicles). The system includes a notification device in the first car that can send notifications to drivers of subsequent cars through the EVSE infrastructure, enabling communication without direct contact and facilitating the unblocking process.
Solution Approach 2:
The notification system provides feedback mechanisms where the first car can detect when it is blocked and automatically send notifications to subsequent cars. The system monitors the charging status and vehicle presence, providing real-time feedback to coordinate vehicle movement and resolve blocking situations.
2Quantity of substance
If multi-level parking garages are used to increase parking space, then parking capacity increases, but reception of radio-frequency signals becomes poor, limiting communication options
Solution Approach 1:
The EVSE (electric vehicle supply equipment) serves as an intermediary communication relay station in the multi-level parking garage. Instead of relying on direct radio-frequency communication between vehicles that may be blocked by concrete structures, the notification system uses the EVSE infrastructure to relay messages between the first car and subsequent cars, bypassing the signal reception problem.
Solution Approach 2:
The patent replaces direct radio-frequency electromagnetic communication (which fails in concrete environments) with an alternative communication path through the EVSE electrical infrastructure. The notification system uses the existing electrical connection between the vehicle charger and EVSE to transmit communication waveforms, substituting the failed RF mechanism with an electrical signaling system.
3Productivity
If charging stations are added to accommodate electric vehicles, then more vehicles can charge, but fewer parking spaces are available for other vehicles
Solution Approach 1:
The notification system enables the EVSE infrastructure to serve multiple functions: it provides electrical charging power to electric vehicles and simultaneously serves as a communication relay station for coordinating tandem parking operations. This multi-functionality allows the same infrastructure to support both charging capacity and efficient space utilization without requiring additional dedicated resources.
Solution Approach 2:
The notification system enables continuous coordination of vehicle movements in tandem parking configurations, allowing the first car to be unblocked and move forward once charging is complete. This continuous coordination maximizes the utilization of limited parking spaces by ensuring that blocked vehicles can efficiently exit and new vehicles can enter, maintaining high productivity of the charging infrastructure.
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
The system enables effective communication and movement of vehicles in tandem parking scenarios, enhancing space utilization and reducing waiting times for electric vehicle charging and parking, thereby improving the efficiency of urban parking facilities.
Implementation Method 1
detecting that the first vehicle is drawing power according to a communication waveform that is different than the charging waveform
Implementation Method 2
The vehicle charger may detect and decode communication waveforms drawn by the first vehicle, and may send a notification to another device
Data Source
AI summary
A method and system of notifications for an electric vehicle are provided. A method of notification includes receiving, from an electric vehicle supply equipment (EVSE), a charge for a first vehicle. The method may further include scanning, by the first vehicle, an identifier of a second vehicle parked in tandem with the first vehicle. The method may also include sending, via the EVSE, by the first vehicle, a notification request including the identifier of the second vehicle.