Vehicle Electronic Component Simulation Test System

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Solution Overview

Problem

Testing vehicle electronic components under varying conditions, such as different road or climate conditions, is inefficient and costly due to the need for repeated driving tests, especially when upgrading components or diagnosing errors in components with multiple input/output ports.

Innovation Solution

A simulation test system using attenuation probes, a data collector, a waveform generator, and an amplifier to collect, store, and reproduce waveforms, allowing for performance testing and error diagnosis without physical driving tests by sharing waveform data over a network, enabling testing of electronic components under various conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If driving tests are repeated under various conditions to test electronic component performance, then testing accuracy and reliability are improved, but time consumption and cost increase significantly

Engineering Contradiction:

Improvetesting accuracyVSAvoidtime consumption

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by collecting and storing waveform data from actual driving conditions in advance. This waveform data is then reused for multiple testing scenarios, eliminating the need to repeatedly conduct actual driving tests while maintaining testing accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system creates copies of actual driving waveform data and uses these copies for repeated testing. The waveform data collector records real signal waveforms during driving, and these recorded waveforms are then played back through the waveform generator for multiple test iterations without requiring actual repeated driving tests.

Inventive Principle:

Principle #26Copying

2Adaptability or versatility

If driving tests are conducted in overseas regions with special conditions, then component performance under specific conditions is improved, but travel cost and time increase

Engineering Contradiction:

Improveperformance under special conditionsVSAvoidtravel time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system copies waveform data collected from overseas regions with special conditions and reproduces these waveforms in the laboratory using the waveform generator. This allows testing under special conditions without physically traveling to those regions, as the waveform data captures the essential characteristics of those environments.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The system replaces the mechanical approach of physically traveling to overseas regions with a signal-based approach. The waveform data collector and waveform generator substitute for actual physical presence in special environments, allowing remote reproduction of those conditions through electrical signals.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Difficulty of detecting and measuring

If expert sensing and manual noting of component errors during driving is used, then diagnostic capability is maintained, but testing efficiency and productivity decrease

Engineering Contradiction:

Improvediagnostic capabilityVSAvoidtesting efficiency

Core Design Contradiction:

Difficulty of detecting and measuringVSProductivity

Solution Approach 1:

The system replaces manual expert sensing and noting with automated electronic waveform collection and analysis. The waveform data collector automatically records signal waveforms, and the system can automatically compare these waveforms against reference data to detect errors, eliminating the need for manual observation while improving efficiency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system implements automated feedback through waveform comparison. The waveform data collector gathers signal waveforms, and the system provides feedback by comparing these waveforms against reference waveforms or expected patterns, automatically identifying deviations or errors without requiring manual expert judgment.

Inventive Principle:

Principle #23Feedback

4Reliability

If repeated driving tests are conducted to verify defect removal after component improvement, then verification reliability is improved, but development cycle time increases

Engineering Contradiction:

Improveverification reliabilityVSAvoiddevelopment speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary waveform collection during the initial development phase. When components are improved or upgraded, the pre-collected waveform data can be immediately reused for verification testing, eliminating the need to repeat the entire driving test cycle and accelerating the development process while maintaining verification reliability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8290661B2Simulation test system and method for testing vehicle electronic component

Publication Date: 2012.10.16 HYUNDAI MOTOR CO LTD

AI summary

Disclosed is a simulation test system and method for testing a vehicle electronic component capable of easily testing performance of the electronic component anytime regardless of location without repeating the same driving test.