Kinetic Roller / Dynamic Roller Testing System
The Kinetic Hub Test Bench is a high-precision dynamic testing apparatus that interfaces directly with a vehicle's wheel hub. Representing an advanced, dynamic hub testing solution, it constitutes a significant upgrade over fundamental hub testing systems. It enables precise performance and energy efficiency testing of the entire vehicle powertrain without relying on tyre-to-roller contact. Not only does it simulate straight-line driving resistance, but more importantly, it replicates the forces experienced during dynamic driving conditions such as uphill/downhill gradients, rapid acceleration, and abrupt deceleration. It also enables independent control and loading of all four wheels. This system finds extensive application in the testing and validation of new energy vehicles, electric drive systems, hybrid powertrains, and intelligent driving technologies.
High-Precision Motor Loading System: Equipped with servo motors and vector control technology for precise dynamic torque and speed simulation.
Full Driving Simulation: Simulates acceleration, deceleration, regenerative braking, and road resistance with high fidelity.
Modular Architecture: Configurable for single, dual, or four-wheel drive testing through flexible module integration.
Energy Regeneration System: Recycles electrical energy back to the grid for cost and energy efficiency.
Protocol Compatibility: Supports CAN, EtherCAT, dSPACE, and ETAS systems for closed-loop control and real-time data acquisition.
Applications
1. Full-Function Chassis Control System Testing (Core Value)
Enables highly realistic testing of critical vehicle control and safety systems under diverse dynamic conditions.
- ESP / ESC (Electronic Stability Program / Control): Simulates vehicle instability scenarios (e.g., oversteer, understeer) to evaluate the system's ability to restore stability by applying braking to individual wheels.
- ABS (Anti-lock Braking System): Assesses braking performance on low-friction surfaces, replicating icy or wet road conditions for braking efficiency analysis.
- TCS / ASR (Traction Control System): Evaluates how the control system manages wheel slip by limiting power output or applying braking torque dynamically.
- All-Wheel Drive (AWD) Systems: Tests the torque distribution and control logic of AWD systems (e.g., Audi Quattro, BMW xDrive) under wheel slip and cross-axle load conditions.
2. Durability Testing
Simulates complex real-world road profiles—including cobblestone, gravel, and uneven terrains—to perform fatigue and endurance tests on the chassis, suspension, and braking systems. Ensures long-term structural reliability and performance stability.
3. Regenerative Braking Testing (for New Energy Vehicles)
Precisely measures the efficiency and responsiveness of energy recovery systems during braking and deceleration phases. Evaluates regenerative torque blending, battery charging behavior, and overall system energy conversion efficiency.
System Advantages
No Tire–Roller Contact
Eliminates mechanical interface between tires and rollers, ensuring superior test stability, repeatability, and reduced maintenance.
Multi-Platform Compatibility
Supports a wide range of vehicle types—from compact EVs to heavy-duty SUVs—with quick mechanical and software setup transitions.
Climatic Chamber Integration
Optional integration with temperature, humidity, and airflow control systems enables realistic environmental testing and thermal behavior analysis.
Open Software Architecture
Provides flexible, user-defined control strategies and data interface options, allowing full integration with custom automation and analysis platforms.
System Functions
Simulation of Gradient / Grade Resistance
Precisely controls the load via electric motors to simulate vehicle conditions during uphill driving (requiring greater traction) and downhill driving (requiring controlled braking force).
Simulation of Acceleration / Deceleration Inertia
Rapidly adjusts dynamic load to replicate inertial resistance during vehicle acceleration and kinetic energy release during deceleration, ensuring realistic transient behavior.
Independent Four-Wheel Control
Each roller is independently driven by a high-performance motor, providing individual torque and speed control for each wheel. This represents the core distinction from conventional roller systems.
System Configuration
Comprises four independent rollers, each equipped with a high-performance motor and precision control unit. Every roller can independently apply positive or negative torque for full simulation flexibility.
Energy Flow
Energy can be dynamically transferred and converted between the four wheels, as well as between the vehicle and the roller system, allowing detailed analysis of power distribution and regenerative interactions.
