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BODAS – Intelligent Electronics for Mobile Hydraulics
Road Roller With Drive Control DRC and Vibration Drive
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Behind the paver, road rollers carry out their difficult job. A tough, level road covering calls for precision work, and BODAS electronics can really help with this. They control smooth starting, braking and reversing to ensure that the roller leaves no impressions in the road surface as it turns. After all, with road rollers it’s the quality of the road surface that really counts.
With its smart choice of software packages, the BODAS controller has everything a road roller needs to carry out its job. The drive control with integral reversing functions and hydrostatic braking provides the all-important, finish-specific soft accelerating and reversing operations. The anti slip control stops wheels from spinning on slopes and on smooth surfaces. Speed sensors built into the Rexroth drive motors provide continuous speed feedback to the controller. This means that any signs of slipping can immediately be corrected before the road surface is damaged.
BODAS also takes care of the load limiting control between the diesel engine and the hydraulics, when negotiating steep slopes for example. The hydraulic power reduction is adjusted according to the diesel engine load signalled via CAN bus. There are also additional functions, including spray and vibration control.
The driver is kept fully informed about all of this by the robust BODAS display built into the driver’s console, which provides a graphical overview of all relevant data. After all, technology is meant to help people.
Hardware in this example
Controller: RC4-4
Speed sensor: HDD in A6VM hydraulic motor
Display: D12
Software packages in this example
Drive control: DRC
Anti slip control: ASR
Load limiting control: LLC
Display-data interface: DDI
Relevant links for BODAS
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