CAN improves the reliability and precision of mobile hydraulic control systems.
In mobile hydraulics, efficiency, reliability, and precision are essential to stay competitive with emerging technologies. Often, advancements in hydraulics stem from collaborations with other technologies, and one of the most significant in recent years is Controller Area Network (CAN) networks. CAN networks transform mobile hydraulics by enabling smooth communication between components, improving performance, diagnostics, and overall system control.

At its core, a CAN network functions as the nervous system of an electronically controlled hydraulic machine, enabling communication between electronic control units (ECUs), sensors, actuators, and other devices. This communication happens through standardized protocols, ensuring compatibility and interoperability across various components and manufacturers.
One of the key advantages of CAN networks in mobile hydraulics is improved system monitoring and diagnostics. By integrating sensors throughout the hydraulic system, CAN networks provide real-time data on critical parameters such as pressure, temperature, and fluid levels. Continuous monitoring allows for early detection of potential issues, helping prevent failures and minimize downtime. Advanced diagnostic algorithms analyze sensor data to identify trends and predict maintenance needs, supporting proactive maintenance strategies.
Additionally, CAN networks enable precise control and coordination of hydraulic actuators, enhancing performance and reducing manufacturing costs. These networks simplify the wiring system by replacing complex harnesses with just four wires per node: power, ground, CAN high, and CAN low. In some cases, this reduction in wiring can save hundreds of pounds of copper.
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With just two wires transmitting data (and only when needed), electronics engineers have developed an efficient method to send and receive control signals while filtering out noise. Each message between nodes is a high and low voltage signal that corresponds to each other, ensuring that if one signal is missing, it is ignored as noise.
CAN networks provide high-speed communication between ECUs and actuators, enabling rapid adjustments to hydraulic parameters such as flow rate, pressure, and direction. This level of precise control enhances the responsiveness and accuracy of hydraulic systems, reducing energy consumption and promoting environmental sustainability while delivering cost savings.
One of the key benefits of CAN networks is their flexibility and scalability. They allow for the seamless integration of additional components and functionalities. As mobile hydraulic systems evolve, CAN networks offer a future-proof communication infrastructure that supports new technologies and changing requirements. This flexibility simplifies machinery production lines, making it easier to add new nodes without the complexity of separate wiring for power, control, and grounding.
CAN networks also enable the integration of advanced sensors, predictive maintenance algorithms, and autonomous control capabilities, providing the necessary bandwidth and reliability to support these innovations.
Furthermore, CAN networks make it easier to integrate individual hydraulic systems into higher-level control systems and fleet management platforms. With standardized communication interfaces, CAN enables centralized monitoring, control, and optimization of entire fleets of mobile equipment.
Finally, the cost of CAN systems and hardware has dropped significantly over the years, and the open standards are straightforward to learn with minimal investment. Today’s sensors, valves, and controllers make advanced CAN technologies accessible to even the most cost-conscious machine builders, offering customers cutting-edge solutions.