| abstract |
The invention relates to an acceleration method for a hybrid drivetrain (1), wherein the acceleration method comprises at least the following steps in the following order: a. receiving an acceleration command while a medium torque request is present at the transmission output shaft (4) and the lower transmission ratio (5) is set on the belt-drive transmission (2), and torque transmission between the internal combustion engine (7) and the electric machine (9) is interrupted by the first disconnect clutch (11); b. shifting the lower transmission ratio (5) with an adjustment gradient (12) towards the upper transmission ratio (6) and increasing the rotor speed of the rotor shaft (10); and c. after the start of step b., engaging the first disconnect clutch (11) to start the ICE shaft (8) and increasing the rotational speed of the ICE shaft (8) towards the current rotor speed. The acceleration method proposed here allows rapid acceleration of a hybrid drivetrain with the efficient use of the power train without a high power consumption. |