Vehicle Control Device Temperature Traceability
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Solution Overview
Problem
Existing systems lack precise traceability and recording of temperature information for test vehicles in soak chambers, affecting the accuracy of performance testing and exhaust gas measurements.
Innovation Solution
A vehicle control system that associates and records temperature information from both peripheral and vehicle-mounted sensors with position data, using beacon signals and GPS for accurate temperature traceability, including residual battery charge and tire pressure, within and outside test chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature information is recorded without association with position data, then recording simplicity is maintained, but temperature traceability precision deteriorates
Solution Approach 1:
The patent embeds position information acquisition and temperature information acquisition functions within the vehicle control device, creating a nested structure where position data and temperature data are hierarchically organized and associated through unique identifiers, enabling precise traceability without requiring separate complex external systems
Solution Approach 2:
The patent introduces position information and unique identifiers as intermediary elements that mediate between the vehicle and temperature measurement systems, allowing temperature data to be accurately linked to specific vehicles and locations without direct complex interaction between all system components
2Measurement precision
If only peripheral temperature sensors are used, then system complexity is reduced, but temperature measurement precision deteriorates
Solution Approach 1:
The patent divides the temperature sensing system into multiple independent temperature information acquisition units distributed at different locations (peripheral sensors and vehicle-mounted sensors), each measuring local temperature conditions and contributing to comprehensive temperature traceability when combined with position data
Solution Approach 2:
The patent implements different temperature measurement capabilities at different locations - peripheral sensors measure environmental temperature outside the vehicle while vehicle-mounted sensors measure internal temperature, with each sensor optimized for its specific location to provide accurate local temperature data
3Reliability
If comprehensive temperature and position data are recorded, then temperature traceability is improved, but data management complexity increases
Solution Approach 1:
The patent enables the vehicle control device to automatically acquire, associate, and manage both position information and temperature information through integrated functions, allowing the system to self-manage comprehensive data without requiring external complex data management infrastructure
Data Source
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AI summary
The present invention makes it possible to provide temperature traceability for a test vehicle. A vehicle control device 30 controls temperature information for a test vehicle V and includes a peripheral temperature acquisition unit 31 that acquires a peripheral temperature of a test vehicle V from a first temperature sensor T1 that is provided in a soak chamber S2 where the test vehicle V is stored or in a test chamber S1 where the test vehicle V is tested, a position information acquisition unit 33 that acquires position information for the test vehicle V, and a recording unit 34 that associates the peripheral temperature of the test vehicle V with the position information for that test vehicle V and records the association.