Screed Heating Power Control Using Limited External Power
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Solution Overview
Problem
Existing methods for heating screed devices in pavers face challenges in reducing engine idle times and noise pollution, particularly when using remote electrical power sources, which can be costly and inefficient.
Innovation Solution
A screed heating control device that connects to a remote electrical power source via a power input connector and controls the power output using a power adjustment unit, allowing for efficient heating management by determining maximum power input and desired output, and automatically or manually adjusting power distribution to minimize energy consumption and reduce engine idle times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the screed device is heated using the paver's own generator, then sufficient power supply is achieved, but engine idle times increase causing pollution and noise
Solution Approach 1:
The heating function is extracted from the paver's own power system. Instead of using the paver's generator to heat the screed, the invention connects to an external power source (trailer battery or grid power) to provide the heating power, thereby separating the heating function from the paver's engine operation and eliminating the need for engine idle during heating.
2Object-generated harmful factors
If remote electrical power source is used for heating, then pollution and noise are reduced, but power input limitations and cost increase
Solution Approach 1:
The heating system dynamically adapts to the available power input. The control unit monitors the power availability from the external source and adjusts the heating power consumption accordingly. The system can operate at reduced power when connected to trailers with limited battery capacity, and at full power when connected to grid power or sufficient battery sources.
3Temperature
If full power is used for heating, then heating effectiveness is improved, but energy consumption increases
Solution Approach 1:
The system incorporates feedback control through the control unit that monitors heating requirements and power availability. The control unit adjusts the power consumption of the heating elements based on the actual heating needs and the available power from the external source, optimizing the balance between heating effectiveness and energy consumption.
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
This solution enables efficient and controlled heating of screed devices using remote electrical power, reducing engine idle times and noise pollution, while protecting against power overloads and optimizing energy use.
Implementation Method 1
heating is performed by utilizing hot waste gas so that energy reutilization is achieved
Data Source
AI summary
A method for controlling a power output from a screed heating control device for heating a screed device of a paver, the control device comprising: a power input connector device connectable to a remote electrical power source, a power output connector device connectable to the screed device, and a power adjustment unit configured to control the power at the power output connector device for heating the screed device by connecting/disconnecting the power output and power input connector devices, the method comprising: determining a maximum power input available at the power input connector device provided by the remote electrical power source, determining a desired power required for heating the screed device, and controlling the power adjustment unit to control the power from the screed heating control device for heating the screed device from the remote electrical power source depending on the maximum power input and the desired power output.