Smart Dual-axis Eddy Current Chassis Dyno With Real-time Data & Remote Monitoring
The new-generation dual-axis eddy current chassis dynamometer is equipped with high-precision eddy current absorbers and dynamically balanced rollers. Combined with flywheel inertia simulation, it accurately reproduces steady, transient and road load conditions. Supporting constant speed/torque/power control, 4WD synchronization and OBD interface, it delivers ±1% accuracy, max speed over 130km/h and 3–10 ton capacity. Compatible with fuel, hybrid and electric vehicles, it provides traceable and networkable data for high-standard annual inspection, repair, R&D and factory quality control.
Description
Dual-axis Eddy Current Chassis Dynamometer – Core Equipment for Vehicle Power & Emission Testing
The dual-axis eddy current chassis dynamometer is a mainstream device in vehicle inspection. It simulates road conditions and accurately measures drive wheel power, torque, speed, acceleration, coasting performance and exhaust emissions. It is widely used in inspection stations, repair chains, 4S centers, automobile factories, new energy R&D centers and environmental monitoring agencies.
1. Core Structure & Working Principle
It adopts a dual-axis four-roller layout with independent eddy current load absorbers on each axis. Electromagnetic induction generates controlled resistance to simulate rolling, air and climbing resistance. Dynamically balanced rollers with anti-slip texture ensure no wheel slip. High-precision torque sensors and speed encoders collect data in real time, converted into power and speed by the control system. An integrated flywheel inertia simulation system matches vehicle inertia via combined flyweights, making bench tests close to real road results. The heavy-duty steel frame with powder coating is vibration-resistant, adapting to dusty, high-vibration workshops.
2. Powerful Functions & Condition Coverage
Performance Testing: Wheel power/torque, max power, power curve, acceleration time/distance, coasting distance/resistance;
Speedometer Calibration: Accuracy check and correction for speedometer and odometer;
Emission Cycle Test: Integrates with exhaust analyzers for GB18285 simple cycle and GB3847 load reduction tests, measuring CO, HC, NOx, PM;
Multi-mode Control: Constant speed/torque/power and road load simulation for steady, transient and climbing conditions;
4WD Synchronization Test: Mechanical/electrical synchronization for accurate 4WD testing without drivetrain damage;
NEV Compatibility: EV/hybrid performance testing, motor characteristic analysis, battery discharge simulation.
3. Technical Specifications & Accuracy
Rated Load: 3t / 10t (standard dual-axis);
Max Test Speed: ≥130km/h;
Power Range: 0–500kW;
Torque Range: 0–2000N·m;
Accuracy: Power ±1%, Torque ±1.5%, Speed ±0.2%;
Roller Diameter: φ216mm / φ508mm optional;
Wheelbase Range: 1143–3000mm, covering sedans to light trucks;
Cooling: Forced air cooling, no water system needed for easy installation.
4. Intelligent Control & Data Management
HD Touch Screen: Multilingual UI (Chinese, English, Spanish, Arabic) with visualized workflow;
Real-time Display: Synchronized power, torque, speed, RPM and emissions with dynamic curves;
Auto Test Flow: Preset programs for inspection, repair and R&D, one-click start and auto-recording;
Data Storage & Traceability: Local + cloud storage, retrievable by plate, date and model;
Custom Reports: Add logo and conclusions, print or export PDF for filing and delivery;
Remote Maintenance: Remote diagnosis, upgrades and calibration to minimize downtime;
OBD/CAN Interface: Reads ECU data for integrated bench-vehicle analysis.
5. Installation & Application
Pit-mounted: Rollers flush with ground for smooth access, ideal for stations and 4S shops;
Surface-mounted: No pit required, quick installation, movable for repair shops;
Optional Lifter: Pneumatic/electric lift for positioning and undercarriage access;
Safety Features: Front/rear limit rollers, anti-roll baffles, emergency stop, audible-visual alarm.
6. Industry Value & Advantages
Inspection Stations: National standard compliance for annual inspection, environmental audit and commercial vehicle approval;
Repair Shops: Diagnose lack of power, high fuel consumption, weak acceleration and excessive emissions;
Automobile Factories: End-of-line quality control, power calibration, emission verification and durability testing;
NEV Manufacturers: Motor testing, battery simulation, vehicle calibration and energy efficiency optimization;
Environmental Agencies: Emission sampling, cycle comparison and high-emission vehicle screening.
7. Conclusion
With core advantages of dual-axis four-roller structure, precise eddy current loading, flywheel inertia simulation, full-condition coverage and intelligent data management, this dynamometer delivers high accuracy, stability, compatibility and easy maintenance. Essential for annual inspection, repair, diagnosis, R&D, quality control and environmental monitoring, it provides safe, efficient and repeatable standardized testing solutions for the automotive industry.
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