Patent Number: 6,167,339

Title: Drive system for a vehicle and method for operating a drive system

Abstract: The invention concerns a drive system, especially for a vehicle, with a drive unit, especially an internal combustion engine, a transmission with variable transmission ratio between drive unit and drive, and especially with a continuously variable transmission ratio or one variable in fine gradations, at least one additional unit driven by the drive unit, especially an electric generator, a control, which selects the transmission ratio within a range of possible transmission ratios, so that the highest possible efficiency is achieved with joint consideration of the individual efficiency functions of the vehicle drive and the additional unit(s) and their drive, in which the individual efficiency functions are incorporated in the total efficiency with a weight corresponding to the power fraction of the vehicle drive and additional unit(s). The invention is also geared toward a corresponding method.

Inventors: Pels; Thomas (Achern, DE)

Assignee: Continential ISAD Electronic Systems GmbH

International Classification: B60L 11/12 (20060101); B60K 6/04 (20060101); B60K 6/00 (20060101); B60L 15/20 (20060101); B60L 11/02 (20060101); F02D 41/02 (20060101); B60K 041/00 (); B60L 011/00 ()

Expiration Date: 12/26/2017