Cooling and air conditioning systems in commercial vehicles such as trucks, buses, trains and vans, as well as in agricultural and construction machinery, are essential for guaranteeing performance, the durability of electronic systems and operator comfort.

HVACR technologies are present in transport vehicles and heavy machinery, and as these machines become more technological and operate in harsh environments, new challenges arise for refrigeration and air conditioning systems, as we see below.

 

Heavy machinery such as agricultural and construction machinery is constantly exposed to harsh environments, with high exposure of HVACR systems to extreme temperatures.

In addition, the heat generated by high-powered engines, hydraulic humidities and on-board electronics in these machines requires robust and intelligent cooling systems and has a direct impact on the well-being of the user-operator.

Globus HVACR systems are designed to guarantee performance and reliability even in aggressive environments with high temperatures, common in the agricultural, mining and construction sectors.

The electronic modules are developed with robust, automotive-grade components with extended operating ranges (typically from -40 °C to +85 °C, and up to +105 °C in specific applications).

In overheating situations, the system adopts strategies such as progressive load reduction, alerts to the operator or even safe shutdown of modules, preserving the integrity of the machine.
 

Commercial transport and cargo vehicles are generally exposed to dust on a daily basis and, with continuous use over long periods, can have obstructed airflow.

Heavy machinery in extreme operating conditions with dust, mud and plant debris can clog ducts and heat exchangers. Dirty filters reduce HVACR performance and increase the thermal load on the system.

All Globus modules can be designed with a high IP degree of protection (usually IP67 or IP69K), guaranteeing sealing against fine dust and water jets, essential for maintaining system integrity in harsh environments.

With intelligent airflow management, it is also possible to monitor the differential pressure in filters and ducts to detect loss of performance in HVACR (heating, ventilation, air conditioning and refrigeration).

This reading is used to alert the operator to the need for preventive maintenance and also to protect the cabins of vehicles that handle pesticides.

Made from specific materials, the connectors and components used follow automotive and off-road standards, with anti-corrosion treatment and vibration-resistant locks, guaranteeing performance even under accumulations of dust and debris.
 

Agricultural and construction machinery can operate for long periods, using its operating capacity without shutting down.

HVACR systems need to be designed to ensure efficient thermal stability and comfort throughout the entire working day, even under heavy load, with the lowest possible energy consumption.

The control monitors the main thermal parameters in real time - internal cabin temperature, return temperature, refrigerant pressure, compressor status, among others - dynamically adjusting the operation to maintain operator comfort with the lowest possible consumption.

In situations of low heat load, the Globus system reduces fan speed or operates with intermittent compressor cycles, avoiding excessive energy consumption and premature wear of components.
 

For efficient, high-performance HVACR systems, it is essential to have custom controllers in vehicles and heavy machinery.

With custom controllers it is possible to precisely adjust the speed of fans, compressors, valves and flaps, adapting in real time to the thermal load, external conditions and the presence of the operator.

Integration with temperature, pressure and presence sensors is done according to the specific needs of the vehicle, and it is possible to adjust functionalities such as automatic shutdown, ECO mode and adjustments according to thermal load with precision.

Globus develops custom HVACR controllers with a focus on thermal efficiency, intelligent integration and reliability for severe applications in heavy machinery and special vehicles.

The systems are custom-designed to integrate with the vehicle's temperature, pressure, humidity, presence and air quality sensors, as well as communicating via protocols such as CAN, LIN or RS485, depending on the customer's architecture, to meet these specific requirements, from the hardware to the firmware.

The control logic allows for automatic and custom modes, such as:

 

Control over vehicle and machine usage data is a growing trend and is already a reality in fleet cooling systems.

With data control systems it is possible to take predictive and corrective action on vehicles, identifying anomalies in real time, alerts for predictive maintenance and remote firmware updates for HVACR control.

Telemetry is a strategic ally in the management of fleets and heavy machinery, enabling faster and more efficient decisions based on operational data, making it possible to monitor critical data on cabin temperature, ambient temperature, compressor load and errors and faults in the HVACR system.

Globus systems are designed to provide all the necessary basis for complete and reliable integration with in-vehicle telemetry.

HVACR controllers offer real-time monitoring of critical data, with continuous reading and availability of information such as:

Telemetry thus makes it possible to analyze HVACR data from vehicles for greater operational efficiency, making it possible to generate energy consumption reports for the refrigeration and air conditioning system.
 

The HVACR challenges in commercial vehicles and large machinery are not just limited to hardware - they require intelligence, connectivity and adaptive, custom control.

The integration of customized cooling and air conditioning systems with telemetry platforms allows not only for greater comfort and durability, but also for faster and more efficient decisions.

Robust, connected solutions are evolving temperature control on the road or in the field, building more reliable, comfortable and intelligent vehicles and machines.

 
Contact our team of experts and find out more.
Globus Electronics. Technology that moves the future.

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Authors:
Rogério Mattos - Application Technician
Rafaela Hartmann - Marketing