| Magneto-rheological Fluid Smart Active Dampers (Hydro-Pneumatic Springs) used for ZLH50G high speed wheel-loader(now renamed as CLG858) |
| PG-I-GCJX-aXbXc Magneto-rheological Smart Active Dampers (Hydro-Pneumatic Springs) are applied at the first time in ZLH50G high speed wheel-loader(now renamed as CLG858), made by Liugong Corp., who is the leading Corp. in manufacturing wheel-loaders. The Magneto-rheological Smart Active Damper (Hydro-Pneumatic Spring) consists of Magneto-rheological Smart Fluid, a damper, a sensor and a controller. The application of the dampers not only play an important part in taking as passive Hydro-Pneumatic Springs, but also taking as an active suspension system and soft-locking by the Magneto-rheological Smart Fluid when loading and moving. |
ZLH50G High Speed Wheel-loader at 2002'BAUMA CHINA
ZLH50G High Speed Wheel-loader and the Dampers
The Damper Especially Manufactured for ZLH50G High Speed wheel-loader
The Damper on Computerized Calibration Test
The Controller
The Acceleration Sensors
The Static Work Diagram of Magnetorheological Fluid Smart Active Hydro-Pneumatic Spring (Damper)
The Static Locking Diagram of Magnetorheological Fluid Smart Active Hydro-Pneumatic Spring (Damper)
Field Test Results for the Suspension of CLG858 High-Speed Wheel-Loaders：
| On-line Lateral Acceleration Response under the Driver’s Seat, When a Sharp
Turning Takes Place, both in the Time Domain and in the Frequency Domain.
Application of the Gas-Filled Magnetorheological Fluid Dampers resulted in
the satisfactory control of the High-Speed Wheel-Loader without reducing
its stability, even the lateral acceleration under the driver’s seat
reaching to 7.5g。 |
| The Transfer Function and the phase diagram of the Suspension of CLG858
High-Speed Wheel-Loader under the On-line Road Excitation .Note: The resonance frequency of the suspension is about 1Hz. The peak around
43Hz is the reversed transfer function of the suspension due to the engine
excitation to the suspension. |
The Transfer Function of the Suspension and the phase diagram of CLG858
High-Speed Wheel-Loader under the On-line Road Excitation (High speed =63 Km/h).Note: The resonance frequency of the suspension is about 1Hz. The peak around
40Hz to 44Hz is the reversed transfer function of the suspension due to the
engine excitation to the suspension.
Consequently, the application of the Gas-Filled Magnetorheological Fluid Dampers in the CLG858 High-Speed Wheel-Loaders results both in the much better comfort and in the enhanced stability without any compromise for the desiging. |
The Principle of Active Force Supply and Vehicle Pose Passive Modulation Using Magnetorheological Fluid Smart Active Hydro-Pneumatic Springs (Dampers)
