Method for determining the drive train sensitivity of a drive train of a motor vehicle
AssigneeSchaeffler Technologies AG & Co. KG
InventorsTobias Hoffmann, Jan Faißt, Olaf Werner, Stefan Winkelmann
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Abstract
A method for determines the drive train sensitivity of a drive train of a motor vehicle. A vehicle body is placed in longitudinal oscillations in the direction of travel and a parameter for the drive train sensitivity is determined as a function of the determined longitudinal accelerations of the vehicle body and the resultant angular accelerations of a transmission input shaft of a transmission of the motor vehicle.
Claims14
A method for determining a drive train sensitivity of a drive train of a motor vehicle, wherein a vehicle body is placed in longitudinal oscillations in a direction of travel and, depending on longitudinal accelerations of the vehicle body and angular accelerations of a transmission input shaft of a transmission of the motor vehicle, a parameter for the drive train sensitivity is determined, wherein the drive train sensitivity denotes transmission behavior between a torque modulation of a slipping friction clutch and an acceleration amplitude of the motor vehicle that the driver can feel, wherein a linear oscillator with at least one eccentric mass is connected to the vehicle body to generate the longitudinal oscillations.
A method of determining a drive train sensitivity of a motor vehicle, the method comprising:
- connecting a linear oscillator with at least one eccentric mass to a body of the motor vehicle to generate oscillations in a longitudinal direction;
- placing the vehicle in motion in the longitudinal direction;
- varying a frequency of the linear oscillator over a range of frequencies;
- and
- measuring angular accelerations of a transmission input shaft.
Dependencies are inferred from the claim text.