Multi-axis centrifuge for vehicle fixture testing

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Solution Overview

Problem

Existing methods for testing vehicle fixtures, such as beverage cup holders, are limited by their inability to reliably replicate all conditions of complete build-up (CBU) tests, are time-consuming, weather-dependent, and costly, with limited data collection capabilities and unreliable results.

Innovation Solution

A multi-axis centrifuge system with a rotating arm, motor, fixturing plate, braking assembly, and controller is used to simulate various dynamic forces on vehicle fixtures, allowing for precise control and data collection during testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complete build-up testing is performed in real vehicles during driving, then comprehensive testing of vehicle fixtures can be conducted, but the testing is time-consuming, weather-dependent, and costly

Engineering Contradiction:

Improvetesting reliabilityVSAvoidtesting time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent creates a simulated testing environment using a rotating platform that replicates the dynamic forces experienced during real vehicle operation. The platform applies centrifugal and inertial forces to reproduce acceleration, braking, and turning conditions, allowing fixtures to be tested without actual vehicles on roads. This copying approach maintains testing reliability while eliminating weather dependencies and reducing time consumption.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces the complex mechanical system of real vehicle operation with a controlled mechanical testing apparatus. Instead of using actual vehicles with engines, transmissions, and steering systems, the invention employs a simplified rotating platform with controlled motors that generate the necessary forces. This substitution eliminates the need for real driving conditions while maintaining the essential testing objectives.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If complete build-up testing is performed in real vehicles, then comprehensive testing can be conducted, but the testing is weather-dependent and costly

Engineering Contradiction:

Improvetesting reliabilityVSAvoidweather dependency

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #26Copying

3Productivity

If traditional testing equipment is used, then testing can be performed, but data collection capabilities are limited and results are difficult to replicate

Engineering Contradiction:

Improvedata collection capabilityVSAvoidresult repeatability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent incorporates sensors and measurement devices that continuously monitor the forces applied to the fixture during testing. The system measures acceleration, orientation, and other critical parameters, providing feedback that is recorded and analyzed. This feedback mechanism enables comprehensive data collection and allows for precise replication of test conditions, ensuring reliable and repeatable results that can be consistently reproduced.

Inventive Principle:

Principle #23Feedback

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

The system enables reliable and repeatable testing of vehicle fixtures, effectively replicating CBU test conditions in a controlled environment, enhancing data collection, and providing cost-effective and verifiable results.

Implementation Method 1

A multi-axis centrifuge system with a rotating arm, motor, fixturing plate, braking assembly, and controller is used to simulate various dynamic forces on vehicle fixtures

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

The braking assembly is coupled to the arm second end

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS20250137886A1Multi-axis centrifuge and systems and methods of testing a vehicle fixture

Publication Date: 2025.05.01 HONDA MOTOR CO LTD

AI summary

A testing assembly for use in testing a vehicle fixture is provided. The testing assembly includes a multi-axis centrifuge, a fixturing plate, a braking assembly, and a controller. The multi-axis centrifuge includes a central arm that is configured to rotate circumferentially along a rail guide. The fixturing plate is secured to a first end of the central arm. The fixturing plate includes a plurality of openings sized to receive a fastener assembly therethrough for securing the vehicle fixture in a desired position and orientation to the fixturing plate. The braking assembly includes at least one electric actuator coupled to the central arm for selectively stopping rotation of the central arm. The controller provides dynamic control of the multi-axis centrifuge using data gathered from at least one complete build-up test of a vehicle. The controller receives additional data from the testing assembly during testing of a vehicle fixture.