Technology in tractors is a reference for cars

Agricultural machinery has become a reference when it comes to technology. Investments in research and development, aimed at increasing productivity and expanding producers’ earnings, have changed the way agribusiness is viewed. Massey Ferguson, the largest manufacturer of agricultural machinery in Latin America and a reference in the Brazilian agricultural market, contributed to the redefinition of this image, which today has become synonymous with modernity and efficiency.

The brand, whose first tractor factory was installed in Brazil in 1961, has brought many innovations throughout its history: the first Brazilian mechanical harvester took place in 1939, with Massey-Harris 20 imported. The first tractor produced in the country, the MF 50, known as “Cinquentinha”, has for years been a reference in this field and a symbol of pioneering in the modernization of agricultural activity and the expansion of agribusiness.

Numerous technologies applied in agricultural machinery, which draw attention not only for their strength and greatness, sometimes also anticipate trends that are integrated into the automotive sector, including passenger cars. Eder Pinheiro, Product Marketing Coordinator for Tractors, listed four characteristics found in tractors and cars that help to better understand the relationship between different purpose vehicles. The comparison took into account the MF 8700 S tractor with Dyna-VT transmission.

1. Transmission

CVT (Continuously Variable Transmission) transmission is found on the MF 8700 S tractor and in some passenger car models. It is a type of transmission that simulates an infinite amount of gear ratios.

• On the MF 8700 S tractors, the CVT transmission varies from 0.03 km / h and up to 40 km / h (no jerks, no gear shift visualization). In cars with automatic transmission, but without CVT, gear changes are more noticeable.

• On the tractor, the transmission is CVT hydraulic. In practice, it provides more safety and ergonomics, as well as avoiding possible operational malfunctions and improving equipment control, without the need to change gears, as it automatically adjusts the rotation of the engine according to the displacement speed, in search of the best performance x consumption ratio.

• In cars, the basic components of transmission are pulleys and belts. In addition to constant, vibration-free acceleration, the CVT system, which can be considered a kind of automatic transmission, provides fuel economy.

• The CVT transmission also acts as a brake. In cars, ramp control is one of the most common features. In transshipment operations (transportation of sugarcane), for example, tractors also have this system, which is able to “grab” a 28-ton trailer without having to activate the conventional tractor brakes.

• Regarding the automatic transmission, some cars, especially luxury ones, have some differences. One of them is the “Sports” mode. When engaged, it shifts gears at higher speeds, using all gear scales before shifting gears. The MF 8700 S Dyna-VT tractors feature a “work” mode (which indicates the need for power more than speed) and a “shift” mode (no sensitive jerks and is used primarily for operations that seek speed rather than great speed). ).

• In cars, some controls are located on the gearshift levers and others are on consoles and panels. On tractors, all programming is done through a single lever, where you can change the way you work with just one touch, such as duty cycles and travel speed.

2. Cabin

• Tractors, like passenger cars, have a number of features built in to improve operator comfort.

• The tractor cabins have adjustable weight seats which helps absorb irregularities in the ground. Tractors, unlike cars, do not have shock absorbers near the tires, however, they have a cabin damping system (similar to trucks).

• The tractor cabins are increasingly spacious and comfortable, and also have an air conditioning system, even with electronic adjustments in some cases. In addition, the MF 8700 S Dyna-VT tractors feature LED lighting, allowing for better visibility and safety for night work.

3. Comment

• MF 8700 S Dyna-VT Dozers have front axle suspension, which may or may not be actuator operated.

• As with cars, the goal is to eliminate bumps. On tractors, activating the front suspension increases traction efficiency on uneven terrain, as it works by leaving the tires in maximum contact with the ground during operation.

4. Levels of Autonomy (GPS)

Autonomy technology in tractors is still being developed and prototypes are being tested, as is the case with cars. Despite this, its application is inconsistent with the lack of specific legislation for this type of vehicle. Currently, tractors already have autopilot. This technology is developing rapidly because, unlike cars, the environment (agriculture) in which the tractors operate is more controlled, reducing the risk of accidents.

However, it is possible to establish a parallel with respect to levels of autonomy, and GPS is a potential resource for comparison.

• In cars, GPS can be activated via cell phone and Bluetooth, essentially showing the route the driver should take. In tractors, GPS goes even further, because it allows autonomy of operation, that is, it determines not only the path, but also the driving of the tractor. In other words, there is no need for operator intervention (only when maneuvering at the end of the drawn lines), who is only interested in execution.

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