Auto-Seek Charging Connector for Plug-In Hybrid Vehicles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Plug-in hybrid electric vehicles (PHEVs) require manual connection to the power grid for charging, which is inconvenient and may result in missed charging opportunities if the vehicle is not plugged in after partial battery depletion.
Innovation Solution
An auto-seek operating mode using electrical plug-in connector elements with built-in sensors for automatic vehicle positioning and alignment with the utility grid, utilizing a closed-loop control system and electric motor assistance for connection, allowing the vehicle to align and connect with the grid autonomously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual connection to power grid is used for charging, then the vehicle can be charged when parked, but the driver must remember to plug in the vehicle which is inconvenient and may result in missed charging opportunities
Solution Approach 1:
The system enables automatic charging by allowing the vehicle to autonomously navigate to and connect with the power grid outlet. The vehicle uses sensors to detect the outlet position, computes a path, maneuvers itself using electric motor power, and automatically connects the electrical connector, eliminating the need for manual driver intervention while ensuring charging is executed reliably
Solution Approach 2:
The system performs preliminary detection of the power grid outlet position using sensors before the vehicle begins maneuvering. This advance detection allows the vehicle to compute and execute the correct positioning path in advance, ensuring the vehicle arrives at the precise location for automatic connection without requiring driver input at the moment of charging
2Extent of automation
If automatic vehicle positioning and alignment is implemented, then charging can be performed autonomously without driver intervention, but the device complexity increases due to sensors and control systems
Solution Approach 1:
The system leverages existing multi-functional vehicle components for the automatic charging task. The electric motor used for vehicle propulsion is also used to maneuver the vehicle to the outlet. The power steering system, normally for directional control during driving, is repurposed for precise alignment with the outlet. This approach achieves high automation without adding dedicated mechanical systems
Solution Approach 2:
The system replaces complex mechanical positioning mechanisms with electronic and software-based solutions. Sensors detect the outlet position and provide data to a controller that computes the path. The controller then sends electronic commands to the motor and steering systems, substituting what could have been a complex mechanical guidance and positioning mechanism with a more flexible and controllable electronic control architecture
Data Source
AI summary
An auto-seek operating mode for an electric vehicle adjusts the vehicle using a vehicle power steering system and a vehicle traction motor to move the vehicle toward a target connector for a utility power grid to charge a vehicle traction battery. If needed, vertical vehicle position adjustments may be made using a controllable vehicle suspension system.