AgOpenGSP Works with Autosteer Ready Tractors

CANbus steering

This is the best solution. Here, an external controller asks the tractor to turn the wheels in the right direction. The tractor itself processes signals from various safety and other sensors. For example, if there is no one in the seat or the clutch is slipped, or if the tractor is stationary or moving too fast, it will not allow external steering. This is the most sophisticated steering. If there is quick steering in the machine, there is a good chance that you can steer in this way.

Hydraulic blocks

There are several types of these, let’s go through them.

Orbit-built:

• Analogue control (there are usually between 2 and 4 coils, 2 of which are responsible for control and 1/2 of which are responsible for enabling, so to speak. This is wired as a DC motor with LEFT / RIGHT / LOCK outputs.
• Danfoss control: this is most recognizable by the fact that there is a Danfoss PVE block on the orbit itself with a connector. There are several versions with 1 connector for PWM and 2 connectors for CAN bus.

External array: which is not on the orbit but is controlled by the steering hydraulics in another place. The wiring is possibly done through T-junctions, but is similar to the above in terms of electrics.

It is important to know how the safety release is possible with hydraulic steering. This varies from machine to machine. Here are a couple we have come across so far:

• Encoder on the steering wheel. This often gives an impulse, less often it pulls the incoming voltage on the body. In the case of John Deere, however, you can also find an analogue 0-5V signal. All can be used.
• Pressure measurement between the handlebar and the block or on the LS branch itself. When the handlebars are touched, the pressure will increase somewhere, often there is a knob on the handlebars that can be used to check the output. Usually 0.5-4.5V but there are also 4-20mA versions. In rarer cases it is a pressure switch solution.