Vehicle ECU Communication Specification Generation from Architecture Models
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Solution Overview
Problem
Designing communication rules for vehicles with multiple ECUs requires significant effort due to varying ECU types and communication paths, necessitating redesign for each vehicle type.
Innovation Solution
An information processing device that generates a communication specification by acquiring architecture model information and variation information, specifying necessary communication paths and data, and generating a communication specification list that defines the relationship between data and paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication rules are designed manually for each vehicle type considering all ECU combinations, then communication reliability is ensured, but design time and labor cost increase significantly
Solution Approach 1:
The system performs preliminary actions by pre-defining communication path templates and data exchange rules that can be reused across different vehicle types. The communication specification generation unit automatically generates vehicle-specific communication rules by selecting and configuring these pre-defined templates, eliminating the need to manually design communication rules from scratch for each vehicle type while ensuring reliability through proven templates.
Solution Approach 2:
The system creates universal communication path templates that can be applied across multiple vehicle types. These templates define general communication rules that work for various ECU combinations, allowing the same template to serve multiple functions across different vehicle configurations. This universality reduces design time while maintaining communication reliability through standardized approaches.
2Productivity
If communication rules are customized for each specific vehicle configuration, then communication efficiency is optimized, but design complexity increases
Solution Approach 1:
The system segments the communication rule design into two parts: universal templates that define general communication patterns applicable to all vehicle types, and vehicle-specific configurations that customize these templates for particular applications. This segmentation allows designers to work with manageable template components rather than designing entire communication systems from scratch, reducing design complexity while enabling optimization for each vehicle type.
Solution Approach 2:
The communication specification generation unit acts as an intermediary that automatically translates universal communication templates into vehicle-specific communication rules. This intermediary process eliminates the need for designers to manually customize each rule, reducing design complexity while still achieving optimized communication efficiency for each vehicle configuration through automatic configuration based on vehicle-specific requirements.
3Manufacturing precision
If manual design of communication rules is performed for each vehicle, then communication specifications are accurate, but labor cost increases
Solution Approach 1:
The system implements self-service by automatically generating communication specifications through the communication specification generation unit. This unit takes vehicle configuration information as input and automatically produces accurate communication rules without requiring manual design effort. The automated generation process maintains specification accuracy by systematically applying validated templates and rules, eliminating human error while reducing labor cost.
Solution Approach 2:
The system uses copying by replicating proven communication path templates across different vehicle types. Instead of manually designing unique communication rules for each vehicle, the system copies and adapts validated templates to specific vehicle configurations. This copying approach ensures specification accuracy through reuse of tested templates while dramatically reducing the design effort required for each new vehicle type.
Data Source
AI summary
The information processing device acquires architecture model information including information representing communication paths for aggregating communication paths between ECU in a plurality of types of vehicles and data communication standards capable of transmitting and receiving data on respective communication paths, acquires variation information including information specifying necessary communication paths necessary for a particular vehicle and information specifying data necessary to be transmitted and received through a necessary communication path, generates a communication specification specifying a relationship between the necessary data and a communication path to which the necessary data should be transmitted based on the architecture model information and the variation information, and specifies a communication path for each necessary data, and specifies a communication path for each necessary data so as to satisfy a data communication standard defined for each necessary data when generating a communication specification.