Electric Bus Battery Exchange Station Positioning

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Solution Overview

Problem

Current electric bus battery exchange technologies require significant time for charging, causing inconvenience to passengers and limiting route flexibility due to the need for frequent stops, which can be mitigated by precise positioning of the bus for quick battery swapping.

Innovation Solution

An electric bus battery exchange station equipped with an imaging unit, entry process storing unit, entry information output unit, and reservation check unit to guide the bus to the exact swapping point without disrupting the route, using cameras for image processing and wireless communication to provide real-time entry information for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If battery charging is performed using current technology, then battery energy is replenished, but exchange time becomes too long (30 minutes) causing passenger inconvenience

Engineering Contradiction:
Improvebattery energyVSAvoidexchange time
Core Design Contradiction:
Use of energy by moving objectVSLoss of time

Solution Approach 1:

Batteries are pre-charged at the battery exchange station before being installed in the bus. The battery exchange unit stores multiple charged batteries and quickly swaps them with discharged ones, eliminating the need for on-site charging and reducing exchange time from 30 minutes to a few minutes.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces the slow chemical charging process with a mechanical battery swapping system. The battery exchange unit uses automated mechanical mechanisms to remove discharged batteries and install charged ones, achieving rapid energy replenishment without the time-consuming charging process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If battery exchange station equipment is added to guide bus positioning, then positioning precision is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning precisionVSAvoidstation equipment
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces an imaging unit as an intermediary device that captures bus position images and transmits them to the control unit. This intermediary system enables precise positioning measurement without requiring complex direct measurement equipment, simplifying the overall system while maintaining high positioning accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The imaging unit creates visual copies (images) of the bus position, which are then processed by the control unit to determine precise positioning. This copying approach allows for accurate measurement and guidance without direct physical contact or complex sensing equipment on the bus itself.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS8869384B2Electric bus battery exchange station
Publication Date: 2014.10.28 KOOKMIN UNIV IND ACAD COOP FOUND
  • US8869384B2 patent drawing
  • US8869384B2 patent drawing
  • US8869384B2 patent drawing

AI summary

Provided is an electric bus battery exchange station. The electric bus battery exchange station according to the present invention includes: an exchange station body having a battery exchange, wherein said battery exchange unit is projected out to be connected with a hole of; an imaging unit taking images of the electric bus moving toward said exchange station body; an entry process storing unit storing entry process information needed in order that the electric bus is positioned exactly below the battery exchange unit; an entry information output unit comparing an entry state of the electric bus obtained from images taken by said imaging unit with the entry information stored, and outputting entry information for modifying the entry state of the electric bus to make equal to said entry process information; and an entry information providing unit providing information outputted by said entry information output unit to the electric bus.