Vehicle Coolant Vision Monitoring for Bubble and Particle Detection

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Solution Overview

Problem

Conventional coolant systems in vehicles provide limited information about the state of the coolant, relying on temperature gauges that do not fully indicate the coolant's condition, such as particle presence, bubble size, and opacity, which can lead to inadequate maintenance and potential system failures.

Innovation Solution

A vehicle system that includes a camera to image the coolant passage and a controller to process image data, determining parameters like color, particle presence, bubble size, and opacity, and outputting an indication to the user about the coolant's state, allowing for more comprehensive monitoring and maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a temperature gauge is used to monitor coolant state, then the system structure remains simple, but the information about coolant state is limited and insufficient

Engineering Contradiction:
Improvecoolant state informationVSAvoidmonitoring system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent replaces the conventional mechanical temperature gauge with an optical imaging system (camera) that captures images of the coolant through the translucent housing. This substitution enables comprehensive visual assessment of coolant state including color, clarity, particle presence, and bubble formation, thereby resolving the information limitation without requiring complex sensor arrays or multiple measurement devices

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a visual copy of the coolant state by capturing an image through the translucent housing. The camera creates an optical replica of the coolant's physical state, allowing users to assess coolant condition remotely without direct contact or complex probing instruments. This copying approach provides comprehensive state information while maintaining system simplicity

Inventive Principle:
Principle #26Copying

2Reliability

If comprehensive coolant monitoring is implemented, then maintenance timing is improved, but the device complexity increases

Engineering Contradiction:
Improvecoolant system reliabilityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the translucent coolant housing serve multiple functions: it acts as both the protective enclosure for the coolant and as an optical window for monitoring. This multi-functionality eliminates the need for separate transparent windows or access ports, allowing comprehensive coolant assessment while maintaining simple system architecture and enhancing reliability through better maintenance timing

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The coolant housing's inherent translucency is utilized for self-monitoring purposes. The housing structure itself enables the imaging function without requiring additional components, making the system self-sufficient for comprehensive coolant state assessment and improving reliability through early detection of degradation

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution provides a more accurate and detailed assessment of the coolant's state, enabling timely maintenance and ensuring the coolant system operates within optimal conditions, thereby enhancing vehicle performance and reliability.

Implementation Method 1

A camera is positioned to image the fluid passage

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

A camera is positioned to image the fluid passage

Methodology Applied
Scientific EffectLight transmission: Refraction

Data Source

PatentUS11995925B2Vision system for a vehicle coolant system
Publication Date: 2024.05.28 FORD GLOBAL TECH LLC
  • US11995925B2 patent drawing
  • US11995925B2 patent drawing
  • US11995925B2 patent drawing

AI summary

A vehicle has a prime mover to propel the vehicle, and a fluid circuit that defines a fluid passage and contains a coolant. The fluid circuit in thermal communication with the prime mover. A camera is positioned to image coolant within the fluid passage. A controller is configured to receive image data from the camera, process the image data to determine a state of the coolant in the fluid circuit, and output an indication to a user regarding the state of the coolant. A method of monitoring a fluid circuit in a vehicle is also provided.