Integrated Interface Circuit for Multi-Function ECU Ports
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Solution Overview
Problem
Existing electronic control units (ECUs) in electric vehicles face tight port resource allocation due to each external port being allocated by function, limiting the ability to meet customized requirements.
Innovation Solution
An integrated interface circuit with multiple functional interface circuits connected between an external port and a processor, allowing a single external port to handle multiple functions, including filtering, voltage regulation, and signal processing, while sharing circuit elements to reduce complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If each external port is allocated by function (one port per function), then each port meets its functional requirements, but the number of available ports becomes insufficient for customized requirements
Solution Approach 1:
The patent implements multi-functionality by integrating multiple functional interface circuits (ADC interface, GPIO interface, analog interface) into a single external port. The port can be dynamically configured to serve different functions based on system requirements, thereby increasing adaptability without increasing the total number of physical ports.
Solution Approach 2:
The patent merges multiple previously separate functional interfaces into a unified external port structure. By combining ADC, GPIO, and analog interface circuits within the same port, the system reduces the overall port count while maintaining all necessary functional capabilities.
2Productivity
If multiple functional interface circuits are integrated into a single external port, then port resource utilization is optimized, but circuit element overlap increases complexity
Solution Approach 1:
The patent applies local quality by allowing different functional interface circuits within the same external port to have distinct circuit element configurations. Each functional interface (ADC, GPIO, analog) maintains its specific circuit characteristics where needed, while sharing common elements where applicable, thus optimizing resource utilization without compromising functional integrity.
Data Source
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AI summary
The present invention relates to an integrated interface circuit, which includes: a plurality of functional interface circuits which are connected between an external port and a processor and configured to respectively implement different functions, wherein the plurality of functional interface circuits include a first functional interface circuit configured to implement a first function and a second functional interface circuit configured to implement a second function, and circuit elements in the second functional interface circuit at least partially overlap circuit elements in the first functional interface circuit. The present invention further relates to a method for manufacturing an interface circuit, to an electronic control unit, to a vehicle, and to a computer storage medium.