In-Vehicle ECU Message Routing for Distributed Control Processing
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Solution Overview
Problem
Existing in-vehicle systems face inefficiencies in processing control due to centralized processing in a single apparatus, leading to increased load and delays in message handling.
Innovation Solution
An in-vehicle apparatus with a first and second processing unit that distributes message reception and processing tasks, utilizing reception tables to optimize communication and reduce load on individual units, allowing for efficient and rapid control processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If processing for controlling the vehicle is concentrated in a single in-vehicle apparatus, then the control logic is simplified and easier to manage, but the processing load increases and execution efficiency decreases
Solution Approach 1:
The patent divides the in-vehicle apparatus into a main body and multiple extension units, each capable of independent processing. The main body handles overall coordination while extension units process specific message types, thereby distributing the processing load and improving execution efficiency without complicating the overall control logic through modular design
2Ease of operation
If all messages are processed by a single processing unit, then message handling is centralized and simple to manage, but processing delays increase and responsiveness decreases
Solution Approach 1:
The patent segments message processing across multiple extension units, where each unit is dedicated to specific message types. This parallel processing architecture reduces processing delays and improves responsiveness while maintaining simplicity through clear division of labor between units
Solution Approach 2:
The patent implements dynamic message routing where messages are automatically directed to appropriate extension units based on their type. This dynamic distribution mechanism maintains operational simplicity while enabling parallel processing to reduce delays
3Device complexity
If a single in-vehicle apparatus handles all control processing, then the system structure is simplified, but the processing load on individual units increases and efficiency decreases
Solution Approach 1:
The patent segments the system into a main body and multiple extension units that can process messages in parallel. This segmentation distributes the processing load across multiple units, improving overall processing efficiency while maintaining a relatively simple system structure through modular architecture
Solution Approach 2:
The extension units are designed with universal interfaces and standardized communication protocols, allowing them to be added or removed without fundamentally changing the system structure. This multi-functionality approach maintains structural simplicity while enabling efficient parallel processing
Data Source
AI summary
An in-vehicle apparatus includes a first processing unit for controlling the vehicle and is connected to a plurality of in-vehicle ECUs, a second processing unit, connected the plurality of in-vehicle ECUs, communicates with the first processing unit. A first reception table and a second reception table includes information indicating a type of a reception target message of the first processing unit second processing unit respectively. The second processing unit receives the reception target message of the second processing unit based on the second reception table and outputs information included in the received message to the first processing unit, and the first processing unit receives the reception target message of the first processing unit based on the first reception table and performs control processing based on at least one of information included in the received message and the information output from the second processing unit.