Patent ID: 7699750
Filing Date: 2010-04-20
Classification: F16H,Y10T

Abstract:
1. A method of controlling an at least partially unsynchronized manual transmission in a vehicle power train connected from a drive motor to increase a rotational speed of a transmission part to be synchronized during a gear change procedure, the method comprising the steps of: connecting at least one transmission element, via a shiftable clutch, to a drive motor; making available to the drive motor a required rotational speed and a necessary torque at an output shaft of the drive motor; and if at least one of the required rotational speed and the necessary torque made available by the drive motor is insufficient to ensure synchronization of the manual transmission within a fixed time period, initiating a shifting strategy which prevents an unintentional retention of the manual transmission in a neutral position, and the shifting strategy including: disengaging a power train if, within the shifting strategy, at least one of a speed of a vehicle falls below a speed limit and a braking force exceeds a predetermined value.