Patent ID: 7387590
Filing Date: 2008-06-17
Classification: B60W,B60Y,F16H,Y10T

Abstract:
1. A method for control of a gear device of a motor vehicle, wherein said gear device is integrated into a motor vehicle power train that can be driven by an engine and is designed as multiple clutch gear, wherein said gear device comprises the following: a first subgear with a first gear input shaft and with several wheel sets for the formation of gears that can be engaged and disengaged, wherein a first torque transmission device is provided upon said first gear input shaft; and; a second subgear with a second gear input shaft and with several wheel sets for the formation of gears that can be engaged and disengaged, wherein a second torque transmission device is provided upon said second gear input shaft, said method comprising: monitoring a signal which indicates whether there is a desire to accelerate; engaging the power train by releasing said first and second torque transmission devices; selecting and engaging a predetermined target gear in one of said first and second subgears, whereby the power train, during said engagement of said target gear, continues to be engaged; selecting and engaging a predetermined intermediate target gear in the other of said two subgears, wherein the power train, during said engagement of said predetermined intermediate target gear, continues to be engaged, wherein said predetermined intermediate target gear is higher than said target gear, so that the rpm of the gear input shaft of said target subgear, is greater than the rpm of the gear input shaft of the subgear in which the current intermediate target gear is engaged; accelerating said engine; and, locking said torque transmission device that is provided on the gear input shaft of the subgear in which said predetermined intermediate target gear is engaged, when it is found that an acceleration desire is indicated, whereby said torque transmission device is locked only so far that it will slip or that the rpm of the gear that engages said torque transmission device on the engine side will increase faster than the rpm of said gear input shaft of the subgear in which the intermediate target gear is engaged.