Method for predetermining a motion state of a drive shaft of an internal combustion engine

摘要

The invention relates to a method for predetermining a motion state (BZn+1) of a drive shaft (222) of an internal combustion engine (210) on the basis of previous motion states (BZn, BZn−2) of the drive shaft (222), wherein properties (tn−2, ωn−2) allocated to a first previous motion state (BZn−2) and properties (tn, ωn) allocated to a second previous motion state (BZn) are used and the drive shaft (222) assumes periodically recurring angular positions (φn−2, φn, φn+2; φn−1, φn+1). The invention is characterized in that a future motion state (BZn+1) and the properties (tn−1, φn+1) allocated thereto of the drive shaft (222) are determined in an angular position on the basis of the first evaluated previous motion state (BZn−2) and the second evaluated previous motion state (BZn), wherein the angular position (φn+1) of the determined future motion state (BZn+1)of the drive shaft (222) is not equal to an angular position (φn−2, φn) of the first and second previous motion state (BZn, BZn−2).

主权项

1. A method for determining a motion state of a driveshaft of an internal combustion engine on the basis of past motion states of the driveshaft, the driveshaft assuming periodically recurring angular positions, the method comprising:
assigning properties to a first past motion state; assigning properties to a second past motion state; determining a future motion state of the driveshaft at an angular position based on the first past motion state and the second past motion state, wherein the angular position of the future motion state of the drive-shaft is not equal to angular positions of the first and of the second past motion states; determining an angular speed of the driveshaft suitable for the engagement of a starting pinion into a toothed ring, and calculating a time at which a starting device commences pre-engagement with its starting pinion if a predetermined motion state has the suitable angular speed.