Rear Roller Electrodeposition Coating for Wear-Resistant Brake Testing
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Solution Overview
Problem
Conventional vehicle performance test devices face issues with wear resistance of rear rollers, leading to increased testing costs due to frequent thermal spray processes or roller replacements.
Innovation Solution
A vehicle performance test device with a rear roller surface coated with an electrodeposition particle layer formed by electrodepositing rigid particles on a metal plating layer, enhancing wear resistance and reducing peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thermal spray layer is provided on the surface of the roller to facilitate wear resistance, then wear resistance is improved, but the thermal spray layer may be peeled off due to friction, leading to deterioration of wear resistance
Solution Approach 1:
The patent applies composite materials by combining a metal plating layer with an electrodeposition particle layer containing rigid particles. This composite structure provides superior wear resistance compared to a single thermal spray layer, while the electrodepositing process creates strong bonding that prevents peeling under friction conditions.
Solution Approach 2:
The patent changes the deposition method from thermal spray to electrodeposition, and changes the particle type to rigid particles. These parameter changes result in a coating that maintains its integrity under friction while providing enhanced wear resistance, solving the peeling problem of thermal spray layers.
2Reliability
If the roller is repetitively subjected to a thermal spray process or replaced to maintain wear resistance, then wear resistance is maintained, but the testing cost is increased
Solution Approach 1:
The patent applies preliminary action by forming a durable electrodeposition particle layer on the roller surface during manufacturing. This preliminary protective layer is designed to last through extended use without peeling, eliminating the need for repetitive thermal spray processes or replacements, thereby reducing maintenance costs.
3Adaptability or versatility
If the rear roller rotates in the rear direction to enable braking performance testing, then braking performance testing is enabled, but the friction between the rear roller and the wheels causes wear and potential peeling
Solution Approach 1:
The patent applies local quality by providing the electrodeposition particle layer specifically on the surface of the rear roller that contacts the vehicle wheels during braking tests. This localized treatment ensures the surface has enhanced wear resistance and friction properties where needed, while maintaining the roller's rotational functionality for braking performance testing.
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 electrodeposition particle layer provides improved wear resistance, eliminating the need for repetitive wear processes and roller replacements, thereby reducing testing costs.
Implementation Method 1
An electrodeposition particle layer is formed on a surface of the rear roller by electrodepositing rigid particles on a metal plating layer
Data Source
AI summary
The disclosure provides a vehicle performance test device, capable of facilitating the wear resistance of a rear roller and thereby reducing testing cost. A vehicle performance test device according to an embodiment includes: a test bed, configured to support a vehicle; and a front roller and a rear roller, disposed in pair on the test bed and spaced apart in a vehicle front-rear direction to support a wheel of the vehicle. The wheel of the vehicle is placed between the front roller and the rear roller to test braking performance of the vehicle. An electrodeposition particle layer is formed on a surface of the rear roller by electrodepositing rigid particles on a metal plating layer.