Mercedes-benz Group Ag

Daimler Ag

Daimler Chrysler Ag

Dalmler Ag

Carsten Gitt

Jonathan Zeibig

Tobias Haerter

Tobias Schilder

Peter Hahn

Klaus Riedl

Detlef Schnitzer

Andreas Kolb

Philip Gansloser

Juergen Schweitzer

Stefan Sperrfechter

Jakub Romaniak

Helmut Bender

Alexander Weidler

A hybrid drive unit includes a transmission having an input shaft and first and second countershafts. An internal combustion engine is directly couplable to the input shaft via a clutch. There are seven shiftable gear pairings, each including a gearwheel arranged coaxially to the input shaft. The first gear pairing has a first gearwheel formed as an idler gear and arranged coaxially to the input shaft, and a second gearwheel formed as an idler gear and arranged coaxially to the first countershaft. The electric machine is connected to the first gear pairing such that torques are transmittable from the electric machine to the transmission via the first gear pairing. Viewed in an axial direction, the first shiftable gear pairing, a first shifting element plane, the second shiftable gear pairing, the third shiftable gear pairing, the fifth shiftable gear pairing, a second shifting element plane, the sixth shiftable gear pairing, and the seventh shiftable gear pairing are arranged one behind the other in that order. The third and the fourth shiftable gear pairings are arranged on the same axial gear plane.

Hybrid drive unit

A hybrid drive system includes a first and second spur gear component transmission that drift via a countershaft. A planetary gear set is arranged coaxially to a crankshaft of the internal combustion engine. A first shaft is couplable with the crankshaft. A rotor of the electric motor is couplable with a second shaft. A first input shaft of the first spur gear component transmission is connected, fixed against rotation, with a third shaft. A second input shaft of the second spur gear component transmission is connected, fixed against rotation, with a fourth shaft of the planetary gear set. The first and the second spur gear component transmission each have exactly one spur gear pairing. An interlock switch element for the rotationally fixed connection of two of the shafts of the planetary gear set is arranged between the two spur gear pairings in an axial direction, seen along the input shafts.

Hybrid drive system

A hybrid drive device includes an internal combustion engine, an electric motor having a rotor, and a gearbox having an input planetary gearing with a main axis of rotation. The internal combustion engine is connected to the input planetary gearing via a disconnect clutch. The input planetary gearing has exactly two planetary gear sets each with three elements. The third element is connected to the sixth element to conjointly rotate and the second element is connected to the fifth element to conjointly rotate. The rotor is coupled to the third element such that torque originating from the rotor is introduced into the gearbox via the third element and the sixth element. The gearbox has a third planetary gear set with three further elements. The second element is connected to the seventh element to conjointly rotate and the eighth element is connected to a driven gear to conjointly rotate.

Hybrid drive device

An electric drive unit includes a first electric engine having a first rotor, a second electric engine having a second rotor, and a transmission unit having a differential transmission with exactly three first shafts arranged coaxially with one another. The three first shafts are a sum shaft to which the first rotor is connected such that torques provided by the first rotor can be introduced into the transmission unit via the sum shaft, a first differential shaft coupled to a first vehicle wheel such that torques can be discharged from the transmission unit and transmitted to the first vehicle wheel via the first differential shaft, and a second differential shaft coupled to a second vehicle wheel such that torques can be discharged from the transmission unit and transmitted to the second vehicle wheel via the second differential shaft.

Electric drive unit for a motor vehicle, in particular for a motor car

An electric drive unit has a first electric engine with a first rotor, a second electric engine which with a second rotor, and a gear unit having a differential, which has exactly three first shafts arranged coaxially to each other. The three first shafts are a sum shaft to which the first rotor is connected in such a way that torques supplied by the first rotor can be introduced into the gear unit via the sum shaft, a first differential shaft coupled to a first vehicle wheel in such a way that torques can be discharged from the gear unit via the first differential shaft and transmitted onto the first vehicle wheel, and a second differential shaft coupled to a second vehicle wheel in such a way that torques can be discharged from the gear unit via the second differential shaft and transmitted onto the second vehicle wheel.

Electric drive unit for a motor vehicle

An electric drive device includes a transmission with a first planetary gear set having a first element, a second element, and a third element. The transmission includes a second planetary gear set having a fourth element connected to the third element for conjoint rotation, a fifth element and a sixth element. A first output shaft is connected to the fifth element for conjoint rotation and a second output shaft is connected to the fourth element for conjoint rotation. A first electric machine has a first rotor that is or can be coupled to the sixth element such that torques provided by the first rotor can be introduced into the transmission via the sixth element.

Electric drive device for a motor vehicle, in particular for a motor car

An electric drive system for a motor vehicle includes a first electric machine having a first rotor, a differential having a differential input shaft and a first differential output shaft and a second differential output shaft. The two differential output shafts are arranged coaxially with respect to the first rotor. A first side shaft is coupled to the first differential output shaft for conjoint rotation. A second side shaft is coupled, or is couplable, to the second differential output shaft for conjoint rotation. A second electric machine has a second rotor arranged coaxially with respect to the first rotor. A first switching element is configured to couple the first rotor to the first side shaft for conjoint rotation. A second switching element is configured to couple the second rotor to the second side shaft for conjoint rotation. The first rotor is coupled, or couplable, to the differential input shaft for conjoint rotation.

Electric drive system for a motor vehicle

An electric drive system for a motor vehicle includes a first electric machine with a first rotor, a second electric machine with a second rotor, and a planetary transmission which has a first planetary gear set, a second planetary gear set, a first input shaft, a second input shaft, a first output shaft, and a output input shaft. The first input shaft introduces first torques originating from the first electric machine into the planetary transmission. The second input shaft introduces second torques originating from the second electric machine into the planetary transmission. The first output shaft discharges third torques from the planetary transmission. The second output shaft discharges fourth torques from the planetary transmission.

Electric drive system for a motor vehicle with two electric motors and a switchable torque vectoring function

An electric drive system for a motor vehicle includes a first electric engine having a first rotor, a second electric engine having a second rotor, and a planetary transmission, which has a first planetary gear set, a second planetary gear set, a first input shaft, a second input shaft, a first output shaft and a second output shaft. The first input shaft is designed to introduce first torques originating from the first electric engine into the planetary transmission. The second input shaft is designed to introduce second torques originating from the second electric engine into the planetary transmission. The first output shaft is designed to divert third torques from the planetary transmission. The second output shaft is designed to divert fourth torques from the planetary transmission.

A dual clutch transmission includes an input shaft, a first clutch having a first input disc carrier, a first output disc carrier, a first force transfer region and a first actuation piston. The transmission also includes a second clutch having a second input disc carrier, a second output disc carrier, a second force transfer region, and a second actuation piston. The transmission includes a first sub-transmission having a first sub-transmission input shaft, and a second sub-transmission having a second sub-transmission input shaft. The input shaft, the first input disc carrier, and the second input disc carrier are connected to one another for conjoint rotation. The first output disc carrier is connected to the first sub-transmission input shaft for conjoint rotation. The second output disc carrier is connected to the second sub-transmission input shaft for conjoint rotation. The second sub-transmission input shaft is arranged coaxially with and radially surrounding the first sub-transmission input shaft. The first force transfer region is arranged radially surrounding and axially at least partially overlapping the second force transfer region. The transmission has a connection plate, which radially overlaps the first force transfer region, is connected to the second sub-transmission input shaft for conjoint rotation, and extends radially starting from the second sub-transmission input shaft, and which is arranged axially between the sub-transmissions and the force transfer region.

Dual clutch transmission

A motor vehicle electric drive system includes first and second electric machines, arranged coaxial to each other and respectively having first and second rotors, a differential gear having a differential input shaft and a first and second differential output shafts arranged coaxially to the first rotor. A transmission stage has a transmission input shaft and a transmission output shaft. The transmission output shaft is connected in a rotationally fixed manner with the differential input shaft. A first switching element couples the first rotor in a rotationally fixed manner with the first differential output shaft. A second switching element couples the second rotor in a rotationally fixed manner with the second differential output shaft. A third switching element couples the first rotor in a rotationally fixed manner with the differential input shaft. A fourth switching element couples the second rotor in a rotationally fixed manner with the transmission input shaft.

A hybrid drive system includes an internal combustion engine having a first output shaft, an electric machine having a rotor with a rotor shaft as second output shaft, and a transmission having a four-shaft, first planetary set, a second planetary set, a first shifting element, a second shifting element, a third shifting element, and a third output shaft. The four-shaft, first planetary set has a first shaft, a second shaft, a third shaft, and a fourth shaft, the second planetary set has a first element, a second element, and a third element. The first shaft, the second shaft, the third shaft, and the fourth shaft are rotatable relative to one another and connectable to one another in a rotationally fixed manner by a blocking shifting element. The first output shaft is coupled or is couplable to the first shaft in a rotationally fixed manner.

Hybrid drive system for a motor vehicle, and motor vehicle

A dual-clutch transmission includes two clutches for respectively connecting an input shaft in a rotationally fixed manner to a sub-transmission input shaft. Two layshafts each have one output gear arranged coaxially with respect thereto. A first, second, and third forward idler gear are each arranged coaxially with respect to the one layshaft. A fourth and fifth forward idler gear are each arranged coaxially with respect to the other layshaft. One of the output gears is a larger output gear having a greater diameter or a greater number of teeth than the other, smaller output gear. The first forward idler gear forms a second gear stage, the second forward idler gear forms a third gear stage, etc. The gear stages have a decreasing transmission ratio in the order stated.

Dual-clutch transmission

A hybrid drive unit includes an internal combustion engine, electric machine, and transmission having an input shaft and first and second countershafts. The internal combustion engine is directly couplable via a clutch to the input shaft. There are six shiftable gear pairings, each with a gearwheel arranged coaxially to the input shaft. The first gear pairing has a first gearwheel as an idler gear arranged coaxially to the input shaft and a second gearwheel as an idler gear arranged coaxially to the first countershaft. The electric machine is connected to the first gear pairing so that torques are directable into the transmission via the first gear pairing. When viewed in an axial direction, the first shiftable gear pairing, a first shifting element plane, the second shiftable gear pairing, the third shiftable gear pairing, the fourth shiftable gear pairing, a second shifting element plane, the fifth shiftable gear pairing, the sixth shiftable gear pairing, and an output gear plane are arranged one after the other in the specified sequence.

A dual-clutch transmission includes first and second partial transmissions, a first countershaft to which a first output gear is permanently connected in a rotationally fixed manner, and a second countershaft to which a second output gear is permanently connected in a rotationally fixed manner. A first idler assigned to the first partial transmission and a second idler assigned to the second partial transmission are respectively arranged coaxially to the first countershaft and are couplable to each other in a rotationally fixed manner by a bridge switching element. The first partial transmission includes exactly three single-gear planes, including a first single-gear plane, second single-gear plane having the first idler, and third single-gear plane. The second partial transmission includes exactly two single-gear planes, including a fourth single-gear plane having the second idler and a fifth single-gear plane, and which is equipped such that eight transmission gears can be implemented with a falling transmission ratio.

Growing community of inventors

Stuttgart, Germany

Carsten Gitt