Engineers from the Gdańsk University of Technology have develop[ed a hydraulic-mechanical automatic transmission for agricultural vehicles and working machines. Their solution will allow for a smooth change of gear ratio at low driving speed and a step change of the gear ratio in the high speed range.
The use of an automatic hydraulic transmission at low speeds allows for very high torques and smooth control of the drive parameters in difficult terrain conditions. Thanks to the mechanical transmission used at higher speeds, the drive becomes more efficient, and this minimizes fuel consumption.
The gearbox can be put into production and used in real vehicles. This particular prototype was designed with the existing telehandler in mind, but the application is much wider. In theory, it can be applied to any slow running machine.
