Bits and bytes boost HYDRAULIC SYSTEM CAPABILITIES

Software has become a mainstay for adding features and functions, with more to come as programming tools advance.

Off-highway vehicles are typically admired for their power, but the driving force behind a growing number of performance improvements are the invisible bits and bytes of control software. Many of the improvements touted by equipment makers are enabled by software that helps pumps, valves and other electrohydraulic parts operate more effectively. This shift follows a growing trend in which digital controls and software are taking a bigger role. This transition is expected to continue as rapid advances in semiconductors and software make it easier to add features and functions.

Caterpillar's Next Generation Excavators highlight this transition to software. The machines use a new, advanced electrohydraulic system that combines electronic intelligence with efficient hydraulic components. Electronic joysticks in the cab control the electrohydraulic main control valve, directing hydraulic power to the different cylinders and motors on the excavator. The pumps and engine work in unison to provide efficient performance and fuel efficiency while meeting emissions regulations. Software is a critical element.