Patent ID: 9494122
Filing Date: 2016-11-15
CPC Classification: F02N

Claim Text:
1. A method for meshing a starter pinion ( 19 ) of a starting device ( 16 ) into a ring gear ( 13 ) of an internal combustion engine ( 10 ), wherein the internal combustion engine ( 10 ) has a driveshaft ( 22 ) and the starting device ( 16 ) has a starter motor ( 25 ), wherein the driveshaft ( 22 ) has a variable rotation speed (n), and in a method step (S1) the internal combustion engine ( 10 ) is switched off and then in a method step (S2) the starter pinion ( 19 ), which is not driven in rotation by the starter motor ( 25 ), is advanced by a pre-meshing force (FV) using a pre-meshing actuator ( 28 ), in a direction of the ring gear ( 13 ), and then in a further method step (S3) a meshing force (FE) is selectively applied to the starter pinion ( 19 ) in order to mesh the starter pinion ( 19 ) in a tooth gap ( 34 ) of the ring gear ( 13 ) during a time period (tE), characterized in that the starter pinion ( 19 ) is advanced in the direction of the ring gear ( 13 ) by the pre-meshing force (FV) until the starter pinion ( 19 ) touches the ring gear ( 13 ), and then starting from a time (t2) the starter pinion ( 19 ) is applied to the ring gear ( 13 ) during a time period (tA), wherein the meshing of the starter pinion ( 19 ) takes place up to a time (tD1, tD2) at which the driveshaft ( 22 ) of the internal combustion engine ( 10 ) has, after the switching off of the internal combustion engine ( 10 ), a rotational speed (n) which is zero, and thereby a zero crossover occurs during the time period (tE) of the meshing at the rotational speed (n) of the driveshaft ( 22 ).