Mobile Charging Station for Electric Construction Vehicles
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Solution Overview
Problem
Existing charging methods for electric construction vehicles, such as generators, are inconvenient, costly, and inefficient, leading to increased downtime and reliance on fossil fuels, especially when vehicles need to be charged at worksites after transportation between locations.
Innovation Solution
A mobile charging station comprising a transportation vehicle equipped with a power management device that regulates electric power from a first source, such as a battery pack or power generation apparatus, to charge the vehicle's battery system during transport, ensuring immediate readiness upon arrival at a worksite.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If generators are used to charge the battery of electric construction vehicles, then charging capability is provided, but maintenance inconvenience, transportation difficulty, and increased downtime occur
Solution Approach 1:
The charging system is activated during the transportation phase itself, rather than after arrival. The power management device receives power from the transportation vehicle's battery pack during transit and charges the construction vehicle's battery in advance, eliminating the need to wait for charging after reaching the worksite.
Solution Approach 2:
A power management device serves as an intermediary between the transportation vehicle's battery pack and the construction vehicle's battery system. This device regulates power flow, enabling efficient energy transfer during transportation without requiring direct connection or manual intervention.
2Use of energy by moving object
If generators with internal combustion engines are used for charging, then electric power is provided, but fuel cost and dependency on conventional energy sources increase
Solution Approach 1:
The system replaces the mechanical internal combustion engine-based generator with an electrical power source. The transportation vehicle's battery pack provides electric power directly through the power management device, eliminating the need for fuel combustion and associated harmful emissions.
3Productivity
If electric construction vehicles are charged after reaching the target worksite, then charging is completed, but productivity is reduced due to longer waiting times
Solution Approach 1:
The charging operation is performed preliminarily during the transportation phase. By the time the construction vehicle arrives at the worksite, the battery is already charged or in the process of charging, ensuring immediate operational readiness and eliminating idle waiting time.
Solution Approach 2:
The charging process continues uninterrupted during transportation. Rather than pausing transit to charge, the system maintains continuous power transfer from the transportation vehicle to the construction vehicle, maximizing productivity by overlapping charging with transit time.
4Power
If generators are used for charging, then power supply is provided, but device complexity and maintenance requirements increase
Solution Approach 1:
The charging function is extracted from the construction vehicle itself and relocated to the transportation vehicle. The transportation vehicle's battery pack and power management device handle all charging operations, simplifying the construction vehicle's design by removing the need for onboard 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
Enables continuous operation of electric construction vehicles by charging them during transport, reducing downtime and fuel dependency, and providing a cleaner, more efficient energy source by utilizing electric power generation, thus enhancing productivity and reducing environmental impact.
Implementation Method 1
The power management device is adapted to regulate the first amount of electric power received from the first electric power source based on a power requirement of at least one of the battery system and the transportation vehicle
Data Source
AI summary
A mobile charging station for charging an electric construction vehicle during a transportation thereof includes a transportation vehicle. The transportation vehicle includes a first electric power source. The electric construction vehicle is adapted to be positioned on the transportation vehicle for transportation thereof. The mobile charging station includes a power management device adapted to be positioned on the transportation vehicle. The power management device is adapted to be coupled with each of the first electric power source and a battery system associated with the electric construction vehicle. The power management device is adapted to receive a first amount of electric power from the first electric power source and regulate the first amount of electric power received from the first electric power source. The power management device is further adapted to supply a second amount of electric power to the battery system.