Emergency Vehicle Battery Discharge System
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Solution Overview
Problem
Existing methods for discharging electric vehicle batteries after a collision are inefficient and may leave batteries still charged, risking further degradation during transport or storage, as monomers can be damaged during the collision process.
Innovation Solution
An emergency response vehicle equipped with a high-voltage discharge system, including a capacitor and cooling arrangement, that electrically couples to the electric vehicle's battery, allowing for reliable discharge based on deformation magnitude, with instructions provided to the operator through a mobile display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If monomers are used to discharge the battery in the electric vehicle, then the battery can be discharged, but the collision may degrade the functionality of the monomers, resulting in the battery still comprising a charge
Solution Approach 1:
The patent introduces an emergency response vehicle as an intermediary system that contains the discharge equipment (capacitor and control system) rather than placing it in the electric vehicle itself. This mediator vehicle can safely approach the collision-damaged vehicle and perform battery discharge operations without being affected by the collision damage, thus resolving the contradiction between discharge reliability and collision damage vulnerability
Solution Approach 2:
The system separates the battery discharge function from the electric vehicle by placing it in a separate emergency response vehicle. This segmentation allows the discharge functionality to be protected from collision damage while maintaining the ability to discharge the battery when needed
2Ease of operation
If the emergency response vehicle discharges the battery to a first threshold load, then the battery is discharged to a safe level for transport, but additional discharge to a second threshold load is needed for non-repairable batteries
Solution Approach 1:
The control system dynamically adjusts the discharge threshold based on the repairability assessment of the electric vehicle. If the battery is deemed repairable, discharge stops at the first threshold load; if non-repairable, discharge continues to the second threshold load. This dynamic adaptation simplifies operation while managing the complexity through automated decision-making
Solution Approach 2:
The system incorporates feedback mechanisms where the control system receives information about battery repairability and automatically adjusts the discharge parameters accordingly. This feedback loop enables the system to handle different scenarios (repairable vs. non-repairable) without requiring complex manual intervention, thus improving ease of operation while managing device complexity
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
Ensures the electric vehicle battery is safely and efficiently discharged to prevent further degradation during transport or storage, independent of the collision-induced deformation.
Implementation Method 1
a charging connector configured to electrically couple a capacitor of the emergency response vehicle to a battery of an electric vehicle
Implementation Method 2
including a capacitor and cooling arrangement
Data Source
AI summary
Methods and system are provided for a discharge system. In one example, an emergency response vehicle, comprising a battery discharge system having a charging connector configured to electrically couple a capacitor of the emergency response vehicle to a battery of an electric vehicle.