Electric Work Vehicle Charging Port With Dynamic Power Sharing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electric work vehicles face challenges in maintaining sufficient charging due to limited electric power sources at construction sites, which also affect the charging of other electrically powered devices.
Innovation Solution
An electric work vehicle system with an electric charging port and outlet, controlled by a computing system that prioritizes charging and power distribution between the vehicle's energy storage device and external devices, allowing simultaneous charging and powering of multiple devices from a single power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If electric power is allocated to charge the energy storage device, then the vehicle's operating range is improved, but the availability of power for remote devices deteriorates
Solution Approach 1:
The system dynamically adjusts power distribution between vehicle charging and remote device powering based on real-time conditions. The computing system monitors power source availability, vehicle charge state, and remote device power needs, then continuously optimizes the allocation ratio to balance vehicle operating range with remote device support capability
Solution Approach 2:
The system changes the power distribution parameter dynamically. When power source capacity is sufficient, more power is allocated to vehicle charging; when capacity is limited or remote devices need power, the allocation shifts accordingly. This parameter adjustment resolves the contradiction by making the system adaptable to different operational scenarios
2Productivity
If multiple devices are charged simultaneously from a single power source, then productivity is improved, but the complexity of power distribution control increases
Solution Approach 1:
The computing system implements feedback control by monitoring the charge states of the energy storage device and remote devices, along with power source capacity, then automatically adjusting power distribution. This feedback mechanism manages the control complexity by providing automated decision-making rather than requiring manual intervention
Solution Approach 2:
The electric work vehicle serves multiple functions: it operates as a work vehicle, a mobile power source for remote devices, and a charging station. This multi-functionality increases productivity by eliminating the need for separate charging infrastructure while the computing system manages the complexity through integrated control
3Loss of time
If the vehicle accepts high charging capacity from the power source, then charging efficiency is improved, but the risk of power shortage for remote devices increases
Solution Approach 1:
The system dynamically adjusts the charging capacity acceptance based on real-time assessment of power source availability and remote device power needs. When remote devices require power, the vehicle reduces its charging rate; when power is abundant, it accepts maximum charging capacity. This dynamic adjustment resolves the contradiction between charging speed and power supply reliability
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An electric work vehicle includes a frame and a traction device coupled to the frame. Furthermore, the electric work vehicle includes an electric motor configured to drive the traction device and an energy storage device configured to supply electric energy to the electric motor. Additionally, the electric work vehicle includes an electric charging port configured to receive electric power from a power source, with the electric charging port being electrically coupled to the energy storage device. Moreover, the electric work vehicle includes an electric outlet configured to provide electric power to a remote device, with the electric outlet being electrically coupled to the electric charging port and the energy storage device. In addition, the electric work vehicle includes a computing system configured to control a distribution of the electric power received by the electric charging port between the energy storage device and the electric outlet.