According to the field engineers we interviewed at Eima International 2022, the Exposition of Machinery for Agriculture and Gardening, visibility is the top priority in cabin design for agricultural vehicles.
Ensuring the most visibility while providing adequate data to operators is a real challenge for agricultural machinery makers. While larger and more numerous screens is becoming the new trend of the automotive cockpit, it is not necessarily the answer for off-road vehicles.
In agricultural vehicles, the sitting position of the operators is high but the location of the dashboard is low, which makes it difficult for operators to monitor the data during operation. That's why some manufacturers decide to add an additional display mounted higher up on the pillar. While the information is at the eye level and easier to grasp, the display itself, in many cases, still blocks the view of field in certain situations.
How about the head-up displays in the automotive industry? The concept of the head-up display works perfectly since it brings the information to the line of sight without sacrificing visibility.
However, the most commonly known HUD solution that we see in cars is based on a projection system and is not suitable for agricultural machines for three reasons.
First, it doesn't work very well with vertical windshields. The projection system needs a certain angle to be effective, which is hard to find in an agricultural vehicle where the windshields are quite vertical and steep.