Cable-Powered Snow Groomer Tracks Without Engine Emissions
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Solution Overview
Problem
Snow groomers are noisy, pollute the environment, require expensive maintenance, and have a high cost due to their internal combustion engines.
Innovation Solution
A handling system for a snow groomer that uses an electric connection device to exchange electrical energy with a power supply apparatus, reducing noise and pollution by replacing the internal combustion engine with an electric machine assembly and an electric connection device that includes a winch, tensioning unit, and control unit to manage the power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an internal combustion engine is used to power the snow groomer, then the vehicle can operate autonomously without external power connection, but it generates noise and atmospheric pollution
Solution Approach 1:
The patent replaces the internal combustion engine (mechanical/chemical system) with an electric machine assembly powered by an external electricity supply through a retractable cable. This substitution eliminates noise and atmospheric pollution by removing the combustion process entirely, while the electric motor provides the necessary mechanical power for track propulsion.
Solution Approach 2:
The patent introduces an intermediary power transmission system consisting of a retractable electric cable, winch, and tensioning unit that connects the external electricity supply to the electric machine assembly. This intermediary system enables power transfer without direct physical connection, maintaining operational flexibility while eliminating the harmful effects of internal combustion.
2Ease of repair
If an internal combustion engine is used in the snow groomer, then the vehicle has self-contained power supply, but it requires expensive routine maintenance
Solution Approach 1:
The patent replaces the internal combustion engine with an electric machine assembly that has significantly fewer moving parts and no combustion-related components (pistons, valves, fuel injection systems, exhaust systems). This substitution dramatically reduces routine maintenance requirements and costs, as electric motors primarily require minimal bearing maintenance and no fluid changes.
3Productivity
If an internal combustion engine powers the snow groomer, then the vehicle has operational independence, but it has relatively high cost
Solution Approach 1:
The patent replaces the internal combustion engine with an electric machine assembly that converts electrical energy directly to mechanical energy with higher efficiency. Electric motors operate at peak efficiency across a wide range of loads and have no energy-wasting combustion processes, thermal losses, or friction from multiple moving parts, thereby improving operational efficiency.
4Object-affected harmful factors
If a retractable electric cable with winch and tensioning unit is used to power the snow groomer, then noise and pollution are reduced, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary power transmission system consisting of a retractable electric cable, winch, and tensioning unit that connects the external electricity supply to the electric machine assembly. This intermediary system enables power transfer without direct physical connection, maintaining operational flexibility while eliminating the harmful effects of internal combustion.
Solution Approach 2:
The winch assembly serves multiple functions: it winds and stores the retractable electric cable, pays out the cable as the vehicle moves, and the tensioning unit maintains proper cable tension. This multi-functional design reduces the need for separate systems for cable management, space optimization, and operational flexibility.
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 system significantly reduces noise and environmental pollution while lowering maintenance and operational costs by using electric power, enhancing the efficiency and sustainability of snow grooming operations.
Implementation Method 1
an electric machine assembly (4) that transforms electrical energy to mechanical energy
Implementation Method 2
an electric connection device (8), connected to the power supply apparatus (3) of the tracked vehicle (2) and connected to the electric machine assembly (4) to exchange electrical energy with the power supply apparatus (3) of the tracked vehicle (2) during operation of the tracked vehicle (2)
Data Source
Figure 1
Figure 2~4
Figure 3
AI summary
A tracked vehicle comprising an electric machine assembly (4), a first and a second track (5, 6) coupled to the electric machine assembly (4), and an electric connection device (8), connectable to a power supply apparatus (3) outside the tracked vehicle (1) and connected to the electric machine assembly (4) to exchange electrical energy with the power supply apparatus (3) during the operation of the tracked vehicle (2).