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HPV.Variable Pumps for Closed Loop Operation

Product Catalogue.Turning Power into Motion

Innovations

Driving Control (CA)

Speed-dependent drive control

Simple, intuitive operation for optimum efficiency

The unbeatable driving experience for applications with engine speed control. Precision, dynamics and reliability. These typical LinDrive® advantages feature in all our propel drive concepts. Linde Hydraulics has specially developed the HPV-02 CA for use in various applications like telehandlers, wheel loaders or dumpers. It enables engine-speed-dependent driving that is exactly coordinated with the pressure requirements of the driving status and the installed engine power. In terms of functional quality, comfort and safety the HPV-02 CA is at the level of electro-hydraulic actuation. Precise power control settings enable full utilisation of the available power. The torque control and performance limiter can be variably defined. In this way, the HPV-02 CA ensures individual driving characteristics adjusted to your requirements.

Advantages

Precision

Continuously variable selection of driving and operating speed via the accelerator pedal through the integrated charge pump for hydrostatic speed sensing.

•    -  temperature independent
•    -  performance optimised
•    -  pressure compensated
•    -  low noise level

 The same driving signal always triggers the same machine reaction through position.

•    -  feed-back control
•    -  reproducible
•    -  precise
•    -  independent of traction forces and loads
•    -  foreseeable
•    -  low in hysteresis

Dynamics

Dynamic acceleration, braking and reversing for enhanced handling performance. Fast, powerful machine reaction and optimum traction at the wheel through high, load-independent actuating forces (system pressure).

•    -  maximum actuation torque
•    -  prompt swashing of pump
•    -  hydrostatic braking through maximum swashing torque
•    -  load independent
•    -  pump control not influenced by braking pressure

Optimum reversing through co-ordinated swashing behaviour of pump and hydraulic motor:

•    -  gentle transition from braking to acceleration
•    -  braking phase can be defined for each application

Reliability

Optimum safety for operator and his environment together with high operational availability and a long service life.

•    -  high safety standard for defined starting and stopping, through reliable neutral pump position at low idle, through activation and deactivation of the control signal at a defined diesel speed
•    -  high availability and long service life through proven design features and robust quality of the Series 02
•    -  exact control at any point of operation through high setting forces in the pump control