公开(公告)号：US11479127B2

公开(公告)日：2022-10-25

申请号：US16346918

申请日：2017-11-22

Applicant: AUDI AG

Inventor： Michael Wein ,  Michael Bär ,  Christian Graf ,  Karl-Heinz Meitinger

IPC: B60K1/02 ,  B60L15/20 ,  B60K1/04 ,  B60K17/24 ,  B60K17/354 ,  B60K17/356 ,  H02P5/50 ,  B60K1/00

Abstract: An all-wheel system for a motor vehicle, with a first electric machine for driving a first drive axle of the motor vehicle; a first electronic power unit for controlling a rotational speed of the first electric machine; a second electric machine for driving a second drive axle of the motor vehicle; a second electronic power unit for controlling the rotational speed of the second electric machine on the basis of the rotational speed of the first electric machine and a specified differential rotational speed between the first electric machine and the second electric machine.

公开(公告)号：US11174906B2

公开(公告)日：2021-11-16

申请号：US16321568

申请日：2017-07-26

Applicant: AUDI AG

Inventor： Michael Baer ,  Martin Arndt ,  Christian Graf ,  Michael Wein ,  Marc Baur ,  Stefan Lehner ,  Stefan Huefner

IPC: F16D48/06 ,  B60K17/348 ,  B60K23/02 ,  F16D13/52

Abstract: A method for operating a clutch of a drive train of a vehicle wherein the clutch, a drive motor primary axis having first wheels that can be driven by the drive motor as first axis and a second axis having second wheels are driven by the drive motor via the clutch as second axis, with the clutch being adjusted between a closed position, wherein a first coupling torque of the clutch is set, and at least one second position differing from the closed position, wherein a second coupling torque of the clutch that is lower than the first coupling torque is set: determining at least one coefficient of friction of a roadway the vehicle is located on; and as a factor of the determined coefficient of friction: adjusting a basic torque of the clutch, with the clutch being prestressed in the second position by the basic torque.

公开(公告)号：US10773604B2

公开(公告)日：2020-09-15

申请号：US15521423

申请日：2015-10-23

Applicant: AUDI AG

Inventor： Karl-Heinz Meitinger ,  Michael Wein ,  Martin Schüssler ,  Alois Stauber ,  Reinhard Hofmann

IPC: H02J7/00 ,  B60L53/62 ,  B60L58/19 ,  B60L11/18 ,  H01M10/44

Abstract: A method for operating an energy storage device with at least one first and at least one second energy storage element in a motor vehicle, wherein the first and the second energy storage elements are connected in series to provide a nominal voltage of the energy storage device, wherein when a charging condition indicated for charging an energy storage device by a motor vehicle-independent energy source as fulfilled, the first and the second energy storage elements are connected in parallel to the motor vehicle-independent energy source, wherein a charging voltage is provided by the motor vehicle-independent energy source for charging the energy storage device, which is lower than the nominal voltage of the energy storage device with a connection in series of the first and of the second energy storage element.

公开(公告)号：US10124668B2

公开(公告)日：2018-11-13

申请号：US14894431

申请日：2014-05-21

Applicant: AUDI AG

Inventor： Michael Wein

IPC: B60K6/365 ,  B60K17/16 ,  B60K6/387 ,  B60K6/52 ,  F16H48/36 ,  B60K17/346

Abstract: A center differential gear assembly for a drive device of a motor vehicle includes a driveshaft, a first driven shaft for a front axle of the motor vehicle, a second driven shaft for a rear axle of the motor vehicle, and a differential gear designed as a planetary gear train. A clutch device operatively connects an electric machine in a first shift position via the differential gear with the second driven shaft and in a second shift position directly with the second driven shaft. A superposition gear includes a first planetary gear train and a second planetary gear, with a ring gear of the first planetary gear train and a ring gear of the second planetary gear train being operatively connected in fixed rotative engagement with one another.

公开(公告)号：US10974603B2

公开(公告)日：2021-04-13

申请号：US16219000

申请日：2018-12-13

Applicant: AUDI AG

Inventor： Michael Wein ,  Matthias Geuß

IPC: B60L7/26 ,  B60L7/18 ,  B60T8/17 ,  B60T8/172 ,  B60T1/10 ,  B60T8/26 ,  B60T13/66 ,  B60T13/58

Abstract: The invention relates to a method for controlling a braking system for setting a total braking torque distribution between a first and a second axle of a motor vehicle. The braking system includes a friction braking device and a recuperative braking device. The braking system has a total braking torque composed of a friction braking torque portion and a recuperative braking torque portion. The method include determining, for one axle, a minimal recuperation torque, which is set on that axle, and remains set on that axle for all driving situations as a recuperative braking torque portion.

公开(公告)号：US10464416B2

公开(公告)日：2019-11-05

申请号：US15553433

申请日：2016-02-18

Applicant: AUDI AG

Inventor： Christian Graf ,  Michael Bär ,  Michael Wein ,  Martin Arndt ,  Stefan Lehner ,  Marc Baur

IPC: F16D48/06 ,  B60K17/35

Abstract: A method for operating a drive train for a motor vehicle, with at least one primary drive axle and at least one secondary drive axle, which are operatively connected to each other via a clutch to an adjustable transmission torque. At the same time it is provided that a vibration amplitude of a vibration of the drive train is determined and in a damping operation type of the drive train, the transmission torque is determined from the vibration amplitude and adjusted on the clutch.

公开(公告)号：US11351971B2

公开(公告)日：2022-06-07

申请号：US16341503

申请日：2017-10-17

Applicant: AUDI AG

Inventor： Michael Wein ,  Matthias Geuß

IPC: B60T13/66 ,  B60T8/172 ,  B60W40/068

Abstract: A system and a method for estimating the coefficient of friction of a hydraulic brake system in a motor vehicle. A system and a method for adjusting the braking torque of a hydraulic brake system in a motor vehicle in order to obtain a desired actual braking torque.

公开(公告)号：US11267344B2

公开(公告)日：2022-03-08

申请号：US16593245

申请日：2019-10-04

Applicant: AUDI AG

Inventor： Michael Wein ,  Matthias Geuß

IPC: B60L7/26 ,  B60L7/00 ,  B60L7/18 ,  B60W30/18

Abstract: A brake system for an at least partly electrically powered vehicle having an electric motor operable as a generator; a friction brake device; a brake control device, which is designed to regulate a generator torque (MGE) of the generator and a friction braking torque (MRB) of the friction brake device; an operating element, especially a brake pedal or brake lever or accelerator pedal, which is designed to provide a desired deceleration.

公开(公告)号：US09878638B2

公开(公告)日：2018-01-30

申请号：US14787096

申请日：2014-04-17

Applicant: AUDI AG

Inventor： Michael Wein ,  Karl-Heinz Meitinger

IPC: B60L15/20 ,  B60L15/32 ,  B60L11/18 ,  B60K1/02 ,  B60W10/08 ,  B60W30/18

CPC classification number: B60L15/32 ,  B60K1/02 ,  B60L11/18 ,  B60L11/1803 ,  B60L15/20 ,  B60L15/2036 ,  B60L15/2045 ,  B60L15/2054 ,  B60L2220/14 ,  B60L2220/42 ,  B60L2220/46 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2240/486 ,  B60L2240/507 ,  B60L2240/662 ,  B60L2240/80 ,  B60L2260/167 ,  B60L2260/26 ,  B60L2270/145 ,  B60W10/08 ,  B60W30/18 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7283 ,  Y02T10/7291 ,  Y02T90/16

Abstract: A method for operating a drive device is disclosed. The drive device has manual transmission has an intermediate shaft operatively connected with an output shaft, and a countershaft. In a first acceleration operating mode of the drive device a first electric motor and a second electric motor of the drive device are operatively connected with the intermediate shaft via the countershaft, and in a second acceleration operating mode the first electric motor is directly connected with the intermediate shaft and the second electric motor is operatively connected with the intermediate shaft via the countershaft. When switching between the first acceleration operating mode and the second acceleration operating mode the operative connection between the first electric motor and the intermediate shaft is interrupted for a defined switching time period. During the switching time period the second electric motor is operated with an overload torque.

公开(公告)号：US09789864B2

公开(公告)日：2017-10-17

申请号：US15100133

申请日：2014-11-11

Applicant: AUDI AG

Inventor： Michael Wein ,  Clemens Burow ,  Stefan Beyer

IPC: B60W20/15 ,  B60K6/48 ,  B60K6/52 ,  B60W30/188

CPC classification number: B60W20/15 ,  B60K6/48 ,  B60K6/52 ,  B60K23/0808 ,  B60W20/00 ,  B60W30/188 ,  B60W2520/00 ,  B60W2540/10 ,  B60W2710/0666 ,  B60W2710/083 ,  B60W2720/403 ,  B60Y2200/92 ,  Y02T10/6265

Abstract: A hybrid manager control unit for a drive train of a vehicle, wherein the hybrid manager control unit has a total target torque dividing device for optimizing an efficiency by dividing a total target torque specification into a first axle torque specification for a first axle of the vehicle and a second axle torque specification for a second axle of the vehicle. The hybrid manager control unit has a redistributing device for producing a first and a second redistributed axle torque specification by partially or completely redistributing the first or the second axle torque specification to the second redistributed axle torque specification or to the first redistributed axle torque specification while taking into account at least one driving dynamics parameter. A vehicle includes a hybrid manager control unit for a drive train of a motor vehicle and a method for distributing a total target torque specification for a vehicle.