Method for operating a drive train of a motor vehicle

Details Method for operating a drive train of a motor vehicle Method for operating a drive train of a motor vehicle

2003-08-30

2009-02-24

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

C701S058000, C477S091000

Reexamination Certificate

active

07496442

ABSTRACT:
In a method for operating a drive train having a drive motor and an automated variable speed transmission, in selected situations, such as when there is a change in the gear speed of the variable speed transmission, it is advantageous to calculate the profile of the rotational speed of the drive motor in advance. For this purpose, pre-stored profile parameters (for example in the form of gradient values when changes in rotational speed are requested) are corrected as a function of a requested difference in rotational speed. Alternatively, in addition to a corrected gradient it is possible to calculate a corrected reaction times, and to carry out the calculation in advance by means of these variables. The reaction time is obtained as a time difference between actuation of a significant change in a state variable (for example a rotational speed) of the drive train. If no previously stored values are available, changes in rotational speed can be requested and the resulting gradients and/or reaction times can be stored.

REFERENCES:
patent: 5136897 (1992-08-01), Boardman
patent: 5272632 (1993-12-01), Noguchi et al.
patent: 5301572 (1994-04-01), Tanaka et al.
patent: 5812957 (1998-09-01), Iizuka
patent: 6319170 (2001-11-01), Hubbard et al.
patent: 6456919 (2002-09-01), Koerner et al.
patent: 2002/0107626 (2002-08-01), Graf
patent: 42 10 626 (1992-03-01), None
patent: 199 33 312 (1999-07-01), None
patent: 199 62 963 (1999-12-01), None
patent: 100 40 657 (2000-08-01), None
patent: 0 512 728 (1992-04-01), None
patent: 0 676 566 (1995-03-01), None
patent: 0 925 990 (1999-06-01), None
patent: 2002-530607 (2002-09-01), None
patent: WO 98/17929 (1998-04-01), None
patent: WO 00/31442 (2000-06-01), None

Affiliated with

Also associated with

Rating

Method for operating a drive train of a motor vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for operating a drive train of a motor vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for operating a drive train of a motor vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4140480