Fev Motorentechnik Gmbh

Fev Gmbh

Gereon Hellenbroich

Stefan Kohlhaas

Michael Franke

Chou Lee

A method for the operation of a hybrid drive system is provided. The hybrid drive system has a first drive machine, for example an internal combustion engine, and a second drive machine, such as an electric machine. The hybrid drive system can also have a first gearshift sub-transmission and a second gearshift sub-transmission. The first gearshift sub-transmission can have a first input shaft that can be coupled to an output shaft using a first group of shifting gearwheel pairs, and the first input shaft can be coupled to the first drive machine. The second gearshift sub-transmission can have a second input shaft that is coupled to the output shaft using a second group of shifting gearwheel pairs, and the second input shaft can be connected with the second drive machine.

Method for the operation of a hybrid drive system and hybrid drive system comprising two sub-transmissions

A hybrid drive system with first drive&#x2014;especially a combustion engine&#x2014;and second drive&#x2014;especially an electric machine&#x2014;for driving a transmission output shaftof a transmissionfor a vehicle is provided. The transmissioncan include a first shiftable partial transmissionwith a first main shaft, which is connectable by a first group of shiftable gear pairsto an intermediate shaft, and the first driveis connectable to the first main shaftof the first shiftable partial transmission. In addition, a second shiftable partial transmissionwith a second main shaft, which is connectable by a second group of shiftable gear pairsto the intermediate shaft, can be included. At least one shiftable gear pair of the first shiftable partial transmissionis formed by two shiftable idlers, a first of the two shiftable idlersis connectable via a shifting element A to the first main shaftand a second of the two shiftable idlersis connectable via a shifting element C to the intermediate shaft

Hybrid drive system

The invention relates to a connecting rod for an internal combustion engine, comprising a center rod having a first and a second end, the first end being provided with a big eye and the second end being provided with a connecting piece; wherein the big eye comprises a first and a second cap for taking up a bearing in between, the first cap being arranged on the center rod; at least one endless fiber loop wrapped around the whole connecting rod; and a tensioner arranged over the first cap, the at least one fiber loop being placed between the tensioner and the first cap, the tensioner being connected to the second cap by the fastening elements under assembling together the first and second caps and tensioning the at least one fiber loop.

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Aachen, Germany

Gereon Hellenbroich