4Q Systems | Regenerative Dynamometers & EV Test Systems

EV Powertrain Validation Systems
Regenerative dynamometer platforms for EV motors, inverters, e-axles, and drive cycle simulation.
Explore 4Q-eDrive
Motor Efficiency Certification Systems
IEC 60034-2-1 compliant regenerative systems for automated efficiency testing and laboratory certification.
Explore 4Q-MEPS
Servo Motor Test Systems
Dynamic regenerative platforms for servo motors, robotics, CNC, and industrial motion-control validation.
Explore 4Q-SMTS

Regenerative Motor Test Systems

Advanced regenerative dynamometer platforms for electric motor testing, EV powertrain validation, IEC 60034-2-1 certification, and industrial automation applications.

IEC 60034-2-1 Expertise

25+ Years Experience

Worldwide Installations

EV & Industrial Validation

Core Capabilities

■ Efficiency Mapping
■ NVH Analysis
■ Drive Cycle Simulation
■ Temperature Rise Testing
■ Summation-of-Losses Testing
■ Automated Production Validation
■ Four-Quadrant Regenerative Operation

Why Leading Laboratories Choose 4Q Systems

IEC 60034-2-1 Expertise

Advanced regenerative test systems designed for motor efficiency certification, summation-of-losses testing, temperature rise analysis, and automated IEC compliance validation.

Regenerative Four-Quadrant Technology

High-dynamic AC regenerative dynamometer platforms for EV powertrains, servo motors, industrial drives, and advanced motion-control applications.

Complete Automation Platform

Integrated software for automated test execution, efficiency mapping, NVH analysis, drive cycle simulation, reporting, and production-line validation.

Global Engineering Experience

More than 25 years of engineering experience delivering turnkey motor testing systems for laboratories, manufacturers, certification centers, and EV developers worldwide.

Our Test Platforms

4Q-eDrive regenerative EV powertrain test platform