Electric Road Machine Charging Display for Planning Long Charge Cycles
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Solution Overview
Problem
Road construction machines with partial electric drive require longer charging cycles, increasing planning effort and operational complexity due to the need for external charging sources.
Innovation Solution
A road construction machine equipped with an electric drive, a rechargeable battery, a charging device, and a display device that shows the charge state and charging process information in alphanumeric format, allowing operators to better plan and manage charging cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If an electric drive with rechargeable battery is used in road construction machines, then environmental friendliness and energy efficiency are improved, but charging cycles become longer and operational complexity increases
Solution Approach 1:
The patent implements a control system that continuously monitors battery charge state, charging process parameters, and machine operational status. This feedback mechanism allows the system to automatically adjust charging strategies, predict charging completion, and provide real-time information to operators, thereby reducing operational complexity while maintaining energy efficiency benefits of electric drive
2Loss of energy
If an electric drive with rechargeable battery is used in road construction machines, then environmental friendliness and energy efficiency are improved, but charging cycles become longer and planning effort increases
Solution Approach 1:
The control system performs preliminary actions by predicting charging completion time based on current charge state and charging rate, and by pre-planning optimal charging schedules. This allows operators to better anticipate charging needs and plan machine operations accordingly, reducing the impact of long charging cycles on overall productivity
3Productivity
If detailed information on charging process is provided to operators, then planning efficiency is improved, but information processing requirements increase
Solution Approach 1:
The control system automatically processes charging information and generates user-friendly displays that show essential charging status, estimated completion time, and operational recommendations. This self-service approach provides operators with actionable information without requiring them to manually process complex technical data, thereby improving planning efficiency while keeping the information system manageable
Data Source
AI summary
A road construction machine includes an electric drive, a rechargeable battery for supplying the electric drive with electric current, a charging device for connecting the rechargeable battery to an external current source and for charging the rechargeable battery, and a display device for displaying information indicative of a charge state of the rechargeable battery and/or information indicative of a charging process of the rechargeable battery.