## 4 Results
### Gearshift Map  
The gearshift map was created as the dependence of the desired gear on the driver's request inputs represented by the accelerator pedal position and the instantaneous vehicle speed. To ensure the gearshift process automation up and down, it was necessary to create a primary gearshift map. Due to the unavailability of a large amount of input data characterizing the gearshift map and the absence of these parameters in the vehicle's technical documentation, it was necessary to create the gearshift map from the available data. For this purpose, the available gearshift maps of the drive and transmission mechanisms of comparable wheeled vehicles were analyzed, values of the current fuel consumption from available curves of fuel consumption of comparable drive and transmission mechanisms were estimated, the real values of fuel consumption of Iveco LMV 4 \(\times\) 4 M65 vehicles used by the Special Operations Forces of the Armed Forces of the Slovak Republic were obtained from the Pretech system, and the optimal gearshift based on the values of quantities characterizing the dynamic properties of the Iveco LMV 4 \(\times\) 4 M65 vehicle were estimated. In the Pretech system, information about the operational times of the vehicle, together with the traveled distances and consumed fuel together with the calculated fuel consumption related to the price dates is recorded and archived. Therefore, the gearshift map can also be modified, for example, on the basis of the season of the year, as the fuel consumption is, of course, dependent on this parameter. The analysis was, of course, performed on the gearshift map data of multiple vehicles with similar characteristics, engines and transmission types; with the same number of degrees of freedom and gears; and with similar purposes, weights and dimensions. During the creation of the model of the dependence of fuel consumption on the internal and external inputs, available information on the fuel consumption of the combustion engines was integrated with the knowledge of the vehicle's consumption in practical operation and data obtained by the approximation of the specific fuel consumption curve of a vehicle with similar characteristics applied in the Armed Forces of the Slovak Republic. In practice, the most common requirement is to minimize the fuel consumption and to maximize the utilized power of the engine or its torque. However, in military applications, the requirements can be different, such as driving in difficult terrain conditions, etc. Even though the values of all the aforementioned parameters depend mainly on engine revolutions and load, the characteristics of their values are different, as can be seen in Figure 17.  
In Figure 17, it can be seen that from the point of view of the maximum use of engine power at full fuel supply, the ideal shifting area is between 3000 and 3600 rpm. However, from an economic point of view and related fuel consumption, shifting in this range would be ineffective. It can be concluded that it is impossible to create a shifting map ideal for every driving situation. Therefore, when creating shifting logic, it is important to create a transmission control unit capable of effective analysis of the driving situations and subsequent adaptation of the gearshift logic, with an emphasis to assign the priority to the values of critical parameters. After performing a deep analysis of the available data and based on the results of the performed analytical and numerical calculations and simulations of the vehicle's drive and transmission mechanism model, an input gearshift map of the Iveco LMV 4 \(\times\) 4 M65 vehicle model was created. Figures 18 and 19 show the gearshift map created based on the parameter values characterizing the dynamic properties of the Iveco LMV 4 \(\times\) 4 M65 vehicle determined using analytical and numerical methods.