Electric Work Vehicle Battery Layout for Stable Emission-Free Operation
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Solution Overview
Problem
Existing work vehicles emit exhaust gases, which can accumulate in enclosed spaces, and there is a demand for vehicles that can operate without emissions or minimize exhaust emissions.
Innovation Solution
The work vehicle is powered by an electric battery, positioned to lower the center of gravity, and includes a hydraulic device with an electric motor and pump, allowing for emission-free operation and stable travel on uneven ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a work vehicle uses an engine as a power source, then it can provide sufficient power for work operations, but it emits exhaust gases that accumulate in enclosed spaces
Solution Approach 1:
The patent extracts the harmful combustion process from the power generation system by removing the engine entirely and replacing it with an electric power source (battery + motor), eliminating exhaust gas emissions while maintaining power output capability through electric propulsion
Solution Approach 2:
The patent replaces the mechanical combustion engine system with an electrical power system consisting of a battery and electric motor, substituting chemical combustion with electromagnetic conversion to eliminate harmful emissions while providing equivalent or superior power delivery
2Stability of the object's composition
If the battery is positioned in the lower portion of the body between travel devices, then the center of gravity is lowered for stable travel on uneven ground, but the space for other components is reduced
Solution Approach 1:
The patent utilizes the vertical dimension by positioning the battery in the lower portion of the body, transforming the two-dimensional component layout problem into a three-dimensional solution where the battery occupies the lower space, thereby lowering the center of gravity without interfering with the horizontal arrangement of other components
Solution Approach 2:
The patent implements a nested arrangement where the hydraulic device is positioned above the battery, and the electric motor is positioned above the battery as well, creating a vertical stacking configuration that efficiently utilizes space while maintaining the low center of gravity benefit
3Shape
If the hydraulic device and electric motor are positioned above the battery, then they do not protrude outside the body beyond the battery area, but the attachment and assembly become more complex
Solution Approach 1:
The patent employs a universal attachment plate structure that serves multiple functions: it attaches the electric motor to the body, provides a mounting surface for the hydraulic device, and facilitates the assembly of multiple components in a standardized manner, thereby simplifying manufacturing despite the vertical stacking arrangement
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
The vehicle operates without exhaust emissions and maintains stability on uneven terrain, with easy maintenance and battery charging capabilities.
Implementation Method 1
a battery held by a lower portion of the body, below the hydraulic device and between the right and left travel devices
Implementation Method 2
an electric motor configured to drive the hydraulic pump
Implementation Method 3
a hydraulic device, and a battery held by a lower portion of the body, below the hydraulic device
Data Source
AI summary
A work vehicle includes a hydraulic device and a battery. The battery is held by a lower portion of a body, below the hydraulic device and between right and left travel devices.