Automotive Interior Materials Tactile Perception Quality Testing Procedure System
Application
(1) Automotive seat surfaces: leather, fabric, synthetic leather, and composite materials.
(2) Instrument panels, center consoles, and decorative trims: soft-touch plastics, coatings, laminates.
(3) Door panels, armrests, glove compartments: tactile evaluation of touch surfaces.
(4) Steering wheels, gear knobs, cup holders: high-frequency touch surfaces.
(5) Surface treatment and coating optimization: microtexture, friction tuning, coating selection.
(6) Material development and quality control: batch testing, formula improvement.
(7) User experience and ergonomics research: quantitative evaluation of tactile comfort and perceived quality.
Standards
(1) Domestic automotive interior tactile evaluation standards.
(2) OEM internal haptic quality standards (BMW, VW, Ford, etc.).
(3) ISO surface roughness and friction standards: ISO 4287. ISO 4288.
(4) VDA tactile evaluation methods.
(5) ASTM E2530 – Haptic evaluation method.
Parameters
| Parameter | Range / Specification | Description |
|---|---|---|
| Micro Surface Roughness | Ra, Rq, Rz | Nanometer-level accuracy |
| Macro Surface Roughness | Measure material texture / waviness | ±1 μm |
| Indentation Force | 0–50 N | Simulates fingertip pressure |
| Rebound Force | 0–50 N | Measures material recovery |
| Sliding Friction Force | 0–10 N | Static and dynamic friction |
| Stick-Slip Pulse Frequency | 0–150 Hz | Friction discontinuity and micro-slip |
| Temperature Simulation | 0–50 ℃ | Simulates finger contact temperature |
| Sensor Sampling Frequency | ≥1 kHz | Real-time data acquisition |
| Control | PLC / PC | Programmable, automatic curves and reports |
| Machine Dimensions | 600 × 400 × 500 mm | Desktop lab design |
| Test Head Type | Artificial finger or custom probe | Simulates real fingertip touch |
Test Procedures
(1) Fix the material sample in the test fixture, ensuring a flat and stable surface.
(2) Install the test head and set initial contact pressure.
(3) Adjust temperature and testing parameters: indentation, sliding speed, friction stroke.
(4) Start the test program and monitor real-time data for force, displacement, friction, and pulse frequency.
(5) After testing, save data and generate a tactile perception report.
(6) Use protective enclosure if necessary for operator safety.
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