METHOD FOR CONTROLLING A HYBRID DRIVELINE IN ORDER TO OPTIMIZE TORQUE FROM A COMBUSTION ENGINE ARRANGED AT THE DRIVELINE

摘要

The present invention relates to a method for controlling a hybrid power train (3) in order to optimize torque from a combustion engine (4) disposed in a hybrid power train (3), the hybrid power train (3) A gear box 2 having an output shaft 20; A first planetary gear 10 connected to the input shaft 8 and the first main shaft 34; A second planetary gear 12 connected to the first planetary gear 10 and the second main shaft 36; A first electric machine (14) connected to the first planetary gear (10); A second electric machine (16) connected to the second planetary gear (12); At least one gear pair (G1, 60, 72) connected to the first planetary gear set (10) and the output shaft (20); And at least one gear pair (G2, 66, 78) connected to the second planetary gear 12 and the output shaft 20. The combustion engine 4 is connected to the input shaft 8 of the gear box 2 And the second main shaft 36 is connected to the planetary wheel carrier 51 disposed on the second planetary gear 12. The first planetary gear carrier 10 is connected to the first planetary wheel carrier 50 disposed on the first planetary gear 10, . The method comprises the steps of: a) separating the movable parts 22, 26, 50 of the first planetary gear 10 from each other and moving the movable parts 28, 32, 51 of the second planetary gear 12, From each other; b) controlling the combustion engine (4) to a predetermined engine speed (n _ice ); And c) the desired torque T _Drv at the output shaft 20 and at the same time the required total power consumption P _{EM of} the first and second electrical machines 14 And controlling the electric machine (14; 16). The present invention also relates to a computer program P for controlling the hybrid power train 3 and a computer program code for the electronic control device 48 or other computer 53 for implementing the method according to the present invention. Program product.