Hybrid drivetrain, hybrid gearbox, and method for operating same

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United States of America Patent

PATENT NO 12115971
APP PUB NO 20220388494A1
SERIAL NO

17774003

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Abstract

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A hybrid gearbox has a shift gearbox including at least one fixed ratio gear having a gear ratio both for the internal combustion engine and the electric motor-generator with respect to a power train connection, and speed superposition gearbox which is designed to provide a power-split gear having a variable speed ratio and a fixed torque ratio with respect to the internal combustion engine connection and the power train connection, wherein the variable speed ratio is formed by a modulation of a speed provided by the internal combustion engine on a speed provided by the electric motor-generator. The hybrid gearbox has at least one operating mode in which gear changes are only carried out between the fixed-ratio gear and the power-split gear.

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Patent Owner(s)

Patent OwnerAddress
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT80809 MÜNCHEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liebert, Sebastian Unterfoehring, DE 25 51

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