Sensor Control Logic for Adaptive Data Transmission Bandwidth
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Solution Overview
Problem
Current sensor systems in motor vehicles face inefficiencies due to excessive information being transmitted, with bottlenecks in data transmission paths, such as the two-wire current interface, leading to suboptimal data delivery to control units, especially when using combination sensors that detect multiple parameters.
Innovation Solution
Incorporating control logic that dynamically determines transmission parameters based on output variables from sensitive assemblies, allowing for adaptive data processing and transmission, enabling optimal use of bandwidth by selecting relevant data for transmission and varying signal components or word lengths according to application needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all sensor data is transmitted to the control unit, then complete information is available for evaluation, but the transmission path becomes overloaded and data transmission efficiency decreases
Solution Approach 1:
The patent extracts only the necessary information from the sensor data before transmission. The control unit selectively requests specific data types or parameters based on current operational needs, rather than receiving all available sensor data. This extraction approach ensures information completeness for required functions while avoiding transmission overload.
Solution Approach 2:
The patent segments the data transmission into prioritized categories or packets. Critical safety-related data is transmitted with higher priority and frequency, while less critical data is transmitted with lower priority or aggregated. This segmentation allows the system to maintain information completeness for essential functions while optimizing transmission efficiency through selective data prioritization.
2Productivity
If data transmission rate is increased to reduce bottlenecks, then more information can be transmitted, but the complexity of the transmission system increases
Solution Approach 1:
The patent implements dynamic adjustment of transmission parameters based on system needs. The control unit adapts the data transmission rate, data format, and information content according to current operational conditions, sensor types active, and processing requirements. This dynamic approach allows the system to optimize transmission capacity without requiring a permanently high-capacity (and complex) transmission infrastructure.
3Adaptability or versatility
If multiple signal paths are used for different functions, then data processing flexibility is improved, but the device complexity increases
Solution Approach 1:
The patent implements a universal data transmission interface that can handle multiple sensor types and data formats through a single standardized path. The control unit performs function-specific processing of the transmitted data rather than requiring separate dedicated signal paths for each function. This multi-functional approach provides data processing flexibility while avoiding the complexity of multiple parallel signal paths.
Data Source
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AI summary
The invention relates to a sensor (1) for data acquisition, comprising at least one sensitive component (2) for the quantitative detection of a parameter to be determined, at least one data transmission unit (3) for transmission of the acquired data, and at least one signal path (4) between the sensitive component (2) and the data transmission unit (3), and also containing a control logic device (8) which, depending on at least one output variable of the sensitive component (2), defines at least one transmission parameter of the signal path (4) and/or of the data transmission unit (3), and an associated method.