Patent ID: 6561947
Filing Date: 2003-05-13
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
A method for controlling gear shifting in a drive assembly for a motor vehicle, which method comprises:providing the motor vehicle with a drive assembly that includes: a) an internal combustion engine having an output shaft; b) a main transmission having multiple gears, a transmission input shaft and a transmission output shaft, said transmission input shaft and said transmission output shaft being configured to be selectively coupled to and uncoupled from one another; c) a main clutch assembly which effects the selective coupling and uncoupling of the transmission input and output shafts; d) an intermediate transmission; e) an electrical machine which is configured to be selectively coupled to the transmission input shaft via the intermediate transmission; and f) a control unit for controlling at least one of the electrical machine and the intermediate transmission during a gear shifting operation; predicting a possible shift value for the transmission along with a transmission ratio (ip) when an operator of the motor vehicle effects at least one of manipulating a gear shift lever for the main clutch assembly and opening the main clutch; and controlling the operating parameters and operating states of at least one of the electrical machine and the intermediate transmission as a function of the predicted possible shift value, during a gear shift.