Heated Media Line with Embedded Memory for SCR Adaptation
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Solution Overview
Problem
The variability in SCR system installations across different vehicles requires different lengths and cross-sections of SCR lines, leading to varying heating capacities and the need for non-standardized heating elements, resulting in increased costs and complexity due to the requirement for multiple line types or individual manufacturing.
Innovation Solution
Incorporating electronic or optically readable storage means along the media line to store line-specific parameters, allowing for adjustable heating power through varying voltage and current, and using pulse width modulation to adapt heating output based on stored data, enabling standardized heating lines for different installation situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different line lengths and cross-sections are used for different vehicle installations, then the heating capacity can be adapted to specific requirements, but the device complexity and manufacturing costs increase due to the need for multiple line types
Solution Approach 1:
A single standardized heating line design is made universally applicable to different vehicle installations by incorporating a memory device that stores line-specific parameters (length, cross-section, heating power). The control unit reads these parameters and adjusts the heating output accordingly, allowing one physical line design to serve multiple installation configurations without requiring multiple specialized line types.
Solution Approach 2:
The heating output is dynamically adjusted by changing electrical parameters (voltage, current, power) based on the line-specific data stored in the memory device. The control unit modifies the electrical supply parameters to match the actual line characteristics, enabling a standardized line to deliver appropriate heating capacity for different lengths and cross-sections without physical modification to the line itself.
2Reliability
If heating power is adjusted for different line lengths, then consistent thawing time can be ensured, but the control system complexity increases
Solution Approach 1:
The line-specific parameters (length, cross-section, required heating power) are predetermined and stored in the memory device attached to or associated with each heating line before installation. This preliminary encoding of operational parameters eliminates the need for complex real-time measurements or calculations during operation, as the control unit simply retrieves the pre-calculated optimal heating parameters from the memory device to ensure consistent thawing time.
Solution Approach 2:
The control unit continuously monitors the heating process and adjusts the electrical supply parameters based on feedback from the actual line characteristics stored in the memory device. This closed-loop control ensures that the heating output matches the specific requirements of each line configuration, maintaining reliable and consistent thawing times across different installation scenarios.
3Ease of manufacture
If standardized heating lines are used for different installations, then manufacturing costs decrease, but the heating output must be adjusted through additional control mechanisms
Solution Approach 1:
A memory device (electronic or optically readable) serves as an intermediary between the standardized heating line and the control unit. This intermediary stores the line-specific parameters that bridge the gap between the uniform physical line design and the varied installation requirements. The control unit communicates with this memory device to obtain the necessary operational parameters, enabling standardized manufacturing while maintaining the ability to adapt to different installations through intelligent control.
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 allows for standardized media lines that can be easily adapted to various vehicle installations, reducing production costs and simplifying the homologation process by using programmable parameters stored on the media line, ensuring consistent heating performance across different vehicle types.
Implementation Method 1
an electrical heating element (4) arranged along the length (L) of the media line (1) in order to apply a certain heating power to the media line (1)
Implementation Method 2
the media line (1) is equipped with storage means (22) for storing or making available line-specific parameter data that can be evaluated by a control unit (24)
Implementation Method 3
the electrical heating power is adjusted according to the invention, in particular by varying the voltage and/or current depending on the stored line-specific parameter data
Implementation Method 4
A variable setting of the heating power can advantageously be carried out by clocking the voltage or current over time and in particular by means of pulse width modulation (PWM) in order to vary the duration of the energization of the/each heating element
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a system for operating an electrically heatable medium line (1) which consists of a fluid line (2) of a defined length (L) and at least one electric heating element (4) which is arranged over the length (L) for loading the fluid line (2) with a heat output. The medium line (1) has memory means (22) for line-specific parameter data, wherein the parameter data can be read out by way of a reading device and a control unit (24) evaluates the parameter data for operating the heating element (4) and for adapting the heating output. Furthermore, the invention relates to a tailored, electrically heatable medium line (1) for use in a system of this type, consisting of a fluid line (2) of a defined length (L) and at least one electric heating element (4) which is arranged over the length (L) for loading the fluid line (2) with a heat output. The memory means (22) for line-specific parameter data are configured in such a way that stored parameter data can be transmitted to an external control unit (24).