ECU-IC Dual-Line Signaling for Faster Incremental Data Detection
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Solution Overview
Problem
Conventional sensor systems in vehicle control modules require periodic updates and polling for data, leading to inefficiencies in data transmission and response times, especially in detecting changes in monitored parameters.
Innovation Solution
The system employs an integrated circuit (IC) to transmit absolute data on a message line at a first rate and incremental data on an index line at a faster second rate, allowing for quicker updates and detection of changes, with the index line indicating directional changes or errors using various signaling methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional periodic polling is used for data transmission, then system complexity is reduced, but response time and data update speed deteriorate
Solution Approach 1:
The communication interface is segmented into two separate channels: a message line for absolute data and an index line for incremental data. This segmentation allows each channel to operate independently at optimized rates, with the index line providing fast incremental updates and the message line providing comprehensive absolute data, thereby resolving the contradiction between fast data updates and system complexity.
2Loss of time
If incremental data transmission is added to provide faster updates, then response time improves, but device complexity increases
Solution Approach 1:
The patent merges absolute data transmission and incremental data transmission into a single communication interface with two lines. The index line carries incremental data for fast updates while the message line carries absolute data for complete state information. This merging allows the system to benefit from both transmission modes simultaneously without requiring separate independent systems, thus improving response time while controlling the increase in device complexity.
3Productivity
If dual-line communication is implemented for simultaneous absolute and incremental data, then data transmission efficiency improves, but manufacturing complexity increases
Solution Approach 1:
The communication interface is designed with universal multi-functionality where the same physical interface structure handles both absolute data transmission and incremental data transmission through its two lines. This multi-functional design allows a single interface component to perform multiple functions (carrying both message line and index line data), thereby improving data transmission efficiency while avoiding the need for multiple separate interface components that would increase manufacturing complexity.
Data Source
AI summary
In one aspect, a system includes an electronic control unit (ECU) and an integrated circuit (IC). The IC is configured to transmit, to the ECU, absolute data on a message line at a first rate; and transmit, to the ECU, incremental data on an index line at a second rate. The second rate is faster than the first rate and the incremental data includes data associated with changes in the absolute data.