EV Charge Port Power Sharing for Accessory Range Planning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electric vehicles face challenges in determining how to allocate charge to connected accessory devices while ensuring sufficient battery life for reaching the next charging station, leading to range anxiety and inefficiencies in charging processes.
Innovation Solution
The electric vehicle is equipped with processing circuitry that allocates charge to accessory devices based on the vehicle's state of charge and energy requirements, using a single cable for both power and data transfer to manage the charging of devices like electric bikes and surfboards, and determines optimal charging waypoints to conserve vehicle battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If charge is allocated to accessory devices during vehicle charging, then accessory devices can be charged, but the vehicle's range is reduced and range anxiety increases
Solution Approach 1:
The system performs preliminary analysis of the charging route and identifies optimal charging waypoints before execution. The processing circuitry calculates energy requirements for both the vehicle and accessory devices along the planned route, determining in advance where charging stops should occur to ensure both vehicle and accessories are adequately charged without causing range anxiety.
Solution Approach 2:
The system continuously monitors the state of charge of both the vehicle battery and accessory device batteries during the charging process. Based on this feedback, the processing circuitry dynamically adjusts charge allocation and determines whether additional charging waypoints are needed, ensuring that the vehicle maintains sufficient range while adequately charging connected accessory devices.
2Use of energy by moving object
If the user chooses not to charge accessory devices until reaching the vehicle charger, then vehicle range is preserved, but the user cannot stop at nearby points of interest without additional detours
Solution Approach 1:
The system pre-calculates the energy requirements of accessory devices for intended activities at points of interest along the charging route. By knowing in advance how much charge will be needed at each waypoint, the system can allocate charge efficiently during vehicle charging stops, enabling users to stop at points of interest without requiring additional detours for accessory recharging.
Solution Approach 2:
The processing circuitry automatically manages charge allocation to accessory devices based on the planned route and activity requirements, without requiring manual user intervention. The system self-determines optimal charge distribution, charging times, and waypoints, freeing the user to plan activities at points of interest without worrying about accessory device charge management.
3Ease of operation
If multiple accessory devices are charged simultaneously, then user convenience is improved, but charge allocation complexity and range management difficulty increase
Solution Approach 1:
The processing circuitry automatically performs charge allocation for multiple accessory devices simultaneously, determining the optimal charge distribution based on device requirements, route characteristics, and vehicle energy availability. The system self-manages the complexity of coordinating multiple charging processes, presenting a simple interface to the user while handling the computational complexity internally.
Solution Approach 2:
The system dynamically adjusts charging parameters such as charge rate, charge timing, and charge allocation ratios for each accessory device based on real-time conditions including device battery capacity, expected usage duration, and vehicle energy state. This parameter optimization enables simultaneous charging of multiple devices while maintaining overall system efficiency and range management.
Data Source
AI summary
Systems and methods are provided for allocating charge from an electric vehicle to a connected accessory device. The electric vehicle includes a charge port coupled to a vehicle battery and configured to connect to an accessory device. When the accessory device is connected to the charge port, charge is allocated from the vehicle battery to the accessory device based on a current state of charge (SOC) of the vehicle battery and energy requirements of the vehicle. The connection between the charge port and the accessory device may allow for the transfer of both power and data between the electric vehicle and the accessory device.