Vehicle Sensor System Axle Temperature Normalization

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing vehicle monitoring systems face challenges in accurately measuring fluid levels in gearboxes due to movement-induced inaccuracies, and in identifying damaged components based on temperature comparisons that are affected by changing operational conditions.

Innovation Solution

A system that includes fluid sensors and positioning systems to determine when a vehicle is stationary for a designated period, allowing for accurate fluid level measurements, and temperature sensors to compare axle temperatures over different speeds to identify damaged components by analyzing temperature deviations among axles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If fluid level measurements are taken during vehicle movement, then continuous monitoring is achieved, but measurement accuracy deteriorates due to movement-induced inaccuracies

Engineering Contradiction:

Improvecontinuous monitoring capabilityVSAvoidfluid level measurement accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system dynamically adjusts the measurement strategy based on vehicle motion state. It continuously monitors vehicle movement and selectively performs fluid level measurements only when the vehicle is stationary or moving below a threshold speed, thereby adapting the measurement process to operational conditions to maintain accuracy while enabling continuous monitoring capability.

Inventive Principle:

Principle #15Dynamics

2Device complexity

If temperature comparisons are made without considering operational conditions, then simplified analysis is achieved, but component damage identification accuracy deteriorates

Engineering Contradiction:

Improveanalysis complexityVSAvoiddamage identification accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The system changes the analysis parameters by incorporating operational conditions (vehicle speed, temperature, acceleration) into the temperature comparison framework. It normalizes temperature readings based on these varying conditions and compares temperatures at matched operational states, thereby improving damage identification accuracy without requiring overly complex analysis methods.

Inventive Principle:

Principle #35Parameter changes

3Loss of time

If fluid level measurements are taken immediately after vehicle movement, then response time is reduced, but measurement accuracy deteriorates

Engineering Contradiction:

Improvemeasurement response timeVSAvoidfluid level measurement accuracy

Core Design Contradiction:

Loss of timeVSMeasurement precision

Solution Approach 1:

The system performs preliminary assessment of vehicle motion state before executing fluid level measurements. It continuously tracks vehicle position and speed data, identifies appropriate measurement windows when the vehicle is stationary or moving minimally, and schedules measurements during these optimal periods, thereby balancing response time with measurement accuracy.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20220155183A1Vehicle sensor system

Publication Date: 2022.05.19 TRANSPORTATION IP HOLDINGS LLC

AI summary

A vehicle sensor system reduces power obtained from a first power-generating component of a power-generating system based on a temperature variation between the first power-generating component and one or more additional power-generating components of the power-generating system at different operating speeds of the power-generating system. The power is reduced to prevent or reduce damage to the first power-generating component. The power-generating components can be axles of a vehicle.