Adapter-Mediated Power Supply for Mixed-Output Work Machines
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Solution Overview
Problem
Users of electric work machines face inconvenience due to the need for separate power-supply apparatuses for low-output and high-output machines, leading to inefficiency and loss of convenience.
Innovation Solution
A power-supply system comprising an electric work machine, a power-supply apparatus, and an adapter that enables digital communication between the power-supply apparatus and the electric work machine, allowing the system to output appropriate power-supply voltages for both low-output and high-output machines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single power-supply apparatus is used for both low-output and high-output electric work machines, then the convenience for users is improved, but the power-supply apparatus cannot properly drive the electric work machine due to communication failures
Solution Approach 1:
The patent introduces an adapter as an intermediary device between the power-supply apparatus and the electric work machine. The adapter includes a communication unit that performs digital communication with both the power-supply apparatus and the electric work machine, enabling proper data transmission and resolving communication failures when a single power-supply apparatus serves multiple machine types.
2Reliability
If separate power-supply apparatuses are used for low-output and high-output electric work machines, then the electric work machines can be properly driven, but the user must prepare multiple power-supply apparatuses which reduces convenience
Solution Approach 1:
The patent makes the power-supply apparatus universal by introducing an adapter that enables a single power-supply apparatus to properly drive both low-output and high-output electric work machines. The adapter handles communication protocols and voltage relay, allowing the power-supply apparatus to adapt to different machine types without requiring separate dedicated power supplies for each.
Solution Approach 2:
The patent segments the power supply system into three independent components: the power-supply apparatus, the adapter, and the electric work machine. This segmentation allows each component to be optimized independently while working together through standardized interfaces, enabling the power-supply apparatus to serve multiple machine types via the adapter.
3Productivity
If digital communication is implemented between power-supply apparatus and electric work machine, then discharge control parameters can be transmitted, but communication failures occur when using a single power-supply apparatus for multiple machine types
Solution Approach 1:
The adapter acts as a communication intermediary that properly relays digital signals between the power-supply apparatus and the electric work machine. The adapter's communication unit ensures that discharge control parameters are transmitted reliably, preventing communication failures that would otherwise occur when a single power-supply apparatus attempts to directly communicate with multiple different machine types.
Data Source
AI summary
A power-supply system includes an electric work machine, a power-supply apparatus, and an adapter. The power-supply apparatus outputs a power-supply voltage. The adapter is coupled between the power-supply apparatus and the electric work machine and relays the power-supply voltage output from the power-supply apparatus to the electric work machine. A work machine communicator of the electric work machine performs, with the adapter, a digital communication in which a voltage level of an electrical signal is sequentially switched between a high level and a low level over time according to communication content. A power-supply communicator of the power-supply apparatus performs the digital communication with the adapter. An adapter communicator of the adapter performs the digital communication with the electric work machine and performs the digital communication with the power-supply apparatus.