Modular Hydro-Pneumatic Suspension System Improving Suspension Performance with a Proper Setup: Quicker and Better Adaptation to Applications
Technical Features ›› pmax up to 250 bar (3600 PSI) ›› Reduces vibrations in axle, wheel, cabin and payload suspension systems ›› Basic and advanced suspension solutions with additional options ›› Automatic control of cylinder position and suspension comfort parameters ›› Serves all loads and cylinder sizes ›› Modular system design with standard modules easily adaptable for specific applications ›› Hydraulic modules ›› Electronic control unit (ECU), touch display (TD) and accumulators ›› Position and pressure sensors ›› Variable settings for different operating and loading conditions ›› Flexible configurations of ECU and TD
Suspension Systems in mobile machines Axle suspensions All wheel suspensions Cab suspensions Drawbar and payload suspensions Hydro-pneumatic suspension systems improve comfort and productivity of vehicles by isolating the vehicle’s chassis and cab - and thus the driver and the payload/implements - from the undesired vibrations from the ground. This is done by hydraulic means - a cylinder and an accumulator act as a combination of spring and damper. With the regulation of oil flow and preload pressure an optimal suspension performance can be achieved. The health and safety directive 2002/44/EG implements high standards for the daily permissible vibration exposure to the driver. Particularly during off-road work, the usage of our hydro-pneumatic suspension extends the possible working time. It increases comfort and driving safety. The driver is more relaxed and therefore he can complete work processes faster and with more precision.
Possible fields of applications
System Integration The modular control system consists of a hydraulic manifold, which is connected to an ECU. The ECU is the command and control center, it coordinates and regulates all the functions of the hydraulic manifold. The necessary input for the commands is provided by data from the TD, various sensors and the vehicle’s bus system. In the basic suspension configuration the hydraulic manifold is connected to the suspension cylinder so it can control the position of the cylinder. For a high variance between maximum and minimum load, the advanced suspension is able to control the pressure in the cylinder’s Rod side chamber. Shut-off and damping-control can be achieved using optional Modules.
Proportional Level Control Unique proportional control allows adaption to various driving conditions faster and more sensitively than traditional hydraulic suspension control systems. Intelligent automatic and easy manual adjustment Simple pre-selection of desired suspension behavior in manual and automatic mode. The automatic intelligent mode monitors vehicle behavior and adapts the suspension setting to achieve best comfort. Full application support For a proper suspension set-up ARGO-HYTOS offers full support in machine integration including advice concerning of geometry and mechanical parts. Cost-effective solutions Thanks to the modular design MHPS allows cost effective solutions even for small volumes. If there is no need for a modular design ARGO-HYTOS is able to adapt the results from functional testing into a customized hydraulic manifold.
Application The basic Module double (BB) offers the functionality of two Basic Modules (BM) integrated in one block. The two-level control valves share one pressure relief valve as well as one service valve. The BB is often used in applications where only little installation space is available, often in combination with standalone damping valves (e.g. PPSA).
Technical Features ›› two cylinders share common pressure relief & service valve ›› block without flanges ›› pressure sensors optional ›› proportional flow rate options max. 5 l/min and max. 25 l/min ›› optimized space requirements
Functional Description Basically, the same function as two Basic Modules however the shared pressure relief valve has to be considered when calculating the respective cylinder size. The BB has no flange surface thus damping pressure control has to be realized with external parts if needed.