Zf Friedrichshafen Ag

Ulrich Kehr

Jochen Eggler

Johannes Kaltenbach

Matthias Reisch

Eckhardt Lübke

Stefan Beck

Wolfgang Rieger

Michael Roske

Timo Wehlen

Michael Trübenbach

Sabine Sielemann

Kai Bornträger

Stephan Scharr

Martin Jelinewski

Bernd Vahlensieck

Andreas Hölscher

Michael Preuβ

Ingrid Reh

Florian Dichtl

Tobias Baum

Michael Kozok

Danny Grusser

Marc Schiess

A rotor () for an electric machine () includes a rotor body with multiple poles. Multiple flux barriers () are formed in the interior of the rotor body. The rotor () further includes at least one sensor element () configured for detecting at least one condition variable of the rotor (), a signal processing unit () connected to the at least one sensor element () and configured for generating measured data from the detected condition variable of the rotor () and transmitting the measured data to a control device (), and at least one induction coil () that includes at least one electrical conductor (), is arranged in at least one flux barrier () of the rotor (), and is configured for generating electrical energy from a leakage magnetic field in this flux barrier ().

Rotor for an electric machine and electric machine having a rotor

A transmission may have an input shaft, a first output shaft, a second output shaft, and an integral differential functionally located between the input shaft and the two output shafts. The transmission may have a planetary gearset that has one or more gearset elements, and a spur gearset, which has a first spur gear and second spur gear that are intermeshed, where a first gearset element is connected to the input shaft for conjoint rotation, where a second gearset element is connected to the first output shaft for conjoint rotation, where a third gearset element is at least indirectly connected to first spur gear for conjoint rotation, and where the second spur gear is at least indirectly connected to the second output shaft for conjoint rotation.

Transmission for a vehicle and powertrain with such a transmission

A rotor () for an electric machine () has a rotor body including multiple poles. The rotor () further has at least one sensor element () for detecting at least one condition variable of the rotor (), and a signal processing unit () connected to the at least one sensor element (). The signal processing unit () is configured to generate measured data from the condition variable of the rotor () and to transmit the measured data to a control device (). Additionally, the rotor () has at least one induction coil (), where each of the at least one induction coil () includes at least one electrical conductor (). The at least one induction coil () is arranged at the rotor () and is configured to generate electrical energy from a magnetic field that is temporally changing during operation of the electric machine ().

A rotor () for an electric machine () includes at least one sensor element () configured for detecting condition variables of the rotor (), a signal processing unit () connected to the at least one sensor element () and configured for generating measured data from the detected condition variables of the rotor () and transmitting the measured data to a control device (), and a nanogenerator () configured for generating electrical energy from at least one surroundings variable and supplying the at least one sensor element () and the signal processing unit () with electrical energy.

Rotor for an electric machine and electric machine having a rotor with rotor having a cooled nanogenerator used to supply power to sensing device

A rotor () for an electric machine () includes at least one sensor element () configured for detecting at least one condition variable of the rotor (), a signal processing unit () connected to the at least one sensor element () and configured for generating measured data from the detected condition variable of the rotor () and transmitting the measured data to a control device (), and at least one induction coil () that includes at least one electrical conductor (), is arranged at least indirectly on an end face of the rotor (), and is configured for generating electrical energy from a magnetic front stray field () rotating in relation to the rotor () during the operation of the electric machine ().

A rotor () for an electric machine () operated with a pulsed voltage, the rotor () having at least one sensor element () for detecting at least one condition variable of the rotor (), and a signal processing unit () connected to the at least one sensor element (), the signal processing unit () generating measured data based on the at least one condition variable of the rotor () and transmitting the measured data to a control device (). The rotor () further having at least one induction coil () at least indirectly supported on an end face of the rotor (), the at least one induction coil () being tuned to a modulation of a fundamental wave field of a magnetic front stray field () formed during operation of the electric machine () with pulsed voltage to generate electrical energy from the fundamental wave field.

An electric machine () includes a housing (), a stator () fixed within the housing (), a rotor () with a rotor shaft (), an air gap () formed between the rotor () and the stator (), and a cooling device () configured for liquid cooling of the electric machine (). The rotor shaft () defines an axial bore () in an axial direction, which extends at least partially into the rotor (). The rotor () defines a radially extending air duct (), which extends from an inner side () contacting the rotor shaft () to an outer side () facing the air gap (). The rotor shaft () defines a bore (), which is aligned with the air duct () such that air is flowable out of the rotor shaft () into the air gap ().

Electric machine

A drive device () for an at least partially electrically driven vehicle () includes an electric machine () having a rotor shaft () extending longitudinally along an input axis (). The drive device further includes a first output shaft () extending longitudinally along an output axis () and parallel to the rotor shaft (). Moreover, the drive device includes a gear stage () having a first gearwheel () rotationally fixed to the rotor shaft (), and a second gearwheel () meshed with the first gearwheel () and drivingly connected to the first output shaft (). Additionally, the drive device includes a housing () having a shared housing cavity (), wherein the first output shaft () and the electric machine () are parallel to one another in the housing cavity (), and wherein an air gap () extends radially between the electric machine () and the first output shaft ().

Drive device for an electrically driven vehicle

A gearwheel (), in particular a parking interlock gear, includes an annular body (). The annular body includes a first toothing (), arranged on an outer circumference of the annular body, for engaging a locking pawl (), and a second toothing (), arranged on an inner circumference of the annular body, for the form-locking connection to a shaft ().

Parking lock

A device () for cooling and lubricating components of a vehicle () may include a housing (), a coolant sump (), a coolant pump () for pumping coolant () from the coolant sump (), a heat exchanger () for cooling coolant () from the coolant pump (), and a coolant line system () including a coolant reservoir () having a single coolant inlet () and multiple coolant outlets (). The coolant line system () fluidically connects the coolant pump () to the heat exchanger (), and the heat exchanger () to the single coolant inlet () of the coolant reservoir (). The coolant reservoir () receives coolant () from the heat exchanger () via the single coolant inlet () and directs coolant () via the multiple coolant outlets () onto components in the housing () requiring cooling and lubrication.

Device for cooling and lubricating components of a vehicle and drive device having a device of this type

A gearwheel (), in particular a parking interlock gear for a parking lock arrangement, includes an annular body with a radially acting first toothing (), arranged on the outer circumference of the annular body (), for the engagement of a locking pawl, an axially acting second toothing (), arranged on a face end of the annular body and including a plurality of teeth () with oblique tooth flanks (), for the engagement of a corresponding axially acting third toothing (), which includes teeth () with oblique tooth flanks (), of a shaft (). A parking lock arrangement also includes the gearwheel.

A drive-train for a vehicle with at least one electric drive, which can be coupled via a driveshaft () to at least a first transmission ratio stage (i) and a second transmission ratio stage (i). At least one shifting mechanism is provided for engaging the transmission ratio stages (i, i). To carry out powershifts, the shifting mechanism includes at least one interlocking shifting element () and at least one frictional shifting element (A). Each of the transmission ratio stages (i, i) can be engaged by the interlocking shifting element () and at least one of the transmission ratio stages (i) can be engaged both by the interlocking shifting element () and by the frictional shifting element (). Methods for carrying out a powershift, between a frictional shifting element (A) and an interlocking shifting element () in the drive-train, are also disclosed.

Powertrain for a vehicle and method for carrying out load changes

A transmission which has drive input and output shafts, a housing, two planetary gearsets (PR, PR), and at least three shifting elements which produce three gears or ratios. A ring gear of the gearset (PR) and the input shaft are connected for forming a first shaft, a carrier of gearset (PR) and the output shaft are connected for forming a second shaft, a ring gear of gearset (PR) forms a third shaft, sun gears of gearsets (PR, PR) are connected for forming a fourth shaft, and carrier of gearset (PR) couples the housing. The first shifting element is arranged in the force flow between the third shaft and the housing, the third shifting element is arranged in the force flow between the second and third shafts, and the second shifting element is arranged in the force flow either between the first and second shafts or the second and fourth shafts.

Transmission

A transmission having a drive input shaft (AN), a drive output shaft (AB), a housing (G), at least two planetary gearsets (PR, PR), and at least three shifting elements (A, B, C) whose selective engagement produces various transmission ratios between the drive input shaft (AN) and the drive output shaft (AB), so that at least three gears can be obtained. To obtain a gear in each case, two shifting elements are engaged and a further shifting element is disengaged.

Growing community of inventors

Tettnang, Germany

Ulrich Kehr