On-road Running Test Apparatus with Real-time Validity Feedback
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Solution Overview
Problem
During on-road vehicle tests, drivers cannot determine in real-time if the speed distribution meets predetermined standards, leading to potential retests or prolonged testing due to uncertainty about the validity of the test results.
Innovation Solution
An on-road running test apparatus with a running data acquisition part and a tendency data output part that provides real-time feedback on the validity of the test based on actual running data, allowing drivers to adjust their driving to meet predefined parameters such as speed distribution, engine rotational speed, and CO2 emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If field test is performed without real-time feedback on running mode validity, then test can be conducted freely on public road, but test validity cannot be confirmed until after completion requiring potential retests
Solution Approach 1:
The system provides real-time feedback to the driver through a display device showing whether the current running mode satisfies predetermined standards. The validity determination unit continuously monitors running data and provides immediate feedback on test validity, allowing drivers to adjust their driving to meet requirements without completing the entire test first.
Solution Approach 2:
The system performs preliminary validation by continuously monitoring running data during the test and determining validity in real-time before the test completes. This preliminary determination prevents the need for post-test validation and potential retests.
2Adaptability or versatility
If field test is performed without real-time validity monitoring, then driver has flexibility in driving, but test may need to be redone or prolonged due to uncertainty about validity
Solution Approach 1:
Real-time feedback maintains driver flexibility while preventing time loss by immediately indicating when running mode requirements are not met. The display device shows validity status continuously, allowing drivers to make immediate corrections without completing unnecessary test portions or scheduling retests.
Solution Approach 2:
The system enables drivers to self-correct their driving behavior by providing clear validity feedback. Drivers can independently adjust their driving to meet running mode requirements without external intervention or post-test analysis.
3Reliability
If running mode standards are strictly enforced without real-time feedback, then test validity is ensured, but drivers cannot adjust driving during test to meet standards
Solution Approach 1:
The system maintains strict enforcement of running mode standards while simultaneously providing real-time feedback to drivers. The validity determination unit continuously checks compliance and the display device informs drivers of their compliance status, enabling immediate corrective action.
Solution Approach 2:
The system performs preliminary guidance by showing drivers their current compliance status before the test concludes. This allows drivers to take preliminary corrective actions during the test rather than discovering invalidity after completion.
Data Source
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AI summary
In order to efficiently and reliably perform a valid field test, there are provided: a running data acquisition part (23) for sequentially acquiring actual running data of a vehicle (V) under execution of a running test on a road by a driver; and a tendency data output part (24) for sequentially producing and outputting tendency data indicating a tendency as to whether or not the running test is valid, based on the actual running data during the running test.