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1. 发明公开

US20240178781A1 ACTIVATION SYSTEM AND METHOD FOR OPERATING AN ELECTRIC MACHINE 审中-公开
公开(公告)号：US20240178781A1
公开(公告)日：2024-05-30
申请号：US18524293
申请日：2023-11-30
申请人： SEG Automotive Germany GmbH
发明人： Nima SAADAT , Murugaperumal DEVARAJA , Christian RIECKEN , Timm LOHMANN , Kaveh HAGHVERDI , Christian STIGLER , Felix EGBERT
IPC分类号： H02P25/22 , H02P9/00 , H02P9/08 , H02P27/06
CPC分类号： H02P25/22 , H02P9/006 , H02P9/08 , H02P27/06
摘要： An activation system for operating an electric machine includes a control circuit device for activating a rotor winding, and having a highside switch, a semiconductor component, and a de-excitation switch. A first terminal of the rotor winding is connectable to a positive supply terminal via the highside switch and to a negative supply terminal via the semiconductor component. A second terminal of the rotor winding is connectable to the negative supply terminal via the de-excitation switch. The activation system is configured to attain a secure state, when at least one fault is present, by disconnecting the rotor winding from the positive supply terminal and/or by de-exciting the rotor winding. A diagnosis may be carried out using an additional highside switch supplied with power via another activation circuit, and/or a fault detection circuit is provided, whose output signal does not change during a de-excitation.

2. 发明授权

US10955446B2 Method for ascertaining the phase currents of an electric machine including a converter 有权
公开(公告)号：US10955446B2
公开(公告)日：2021-03-23
申请号：US16094735
申请日：2017-04-03
申请人： Robert Bosch GmbH , SEG AUTOMOTIVE GERMANY GMBH
发明人： Arunkumar M S , Julian Roesner
IPC分类号： G01R19/25 , H02P9/48 , H02P6/28 , G01R25/00 , H02M7/219 , H02M1/00
摘要： A method for ascertaining phase currents of an electric machine including a converter and stator including stator windings (phase number of at least three), in which the phase currents of measuring phases (at least two), are measured, the phase currents being measured in a measuring interval when the active switching elements of the measuring phases in a lowside path of the converter are activated in a switching interval delimited by a switching-on point-in-time and switching-off point-in-time, the phase currents of the remaining phases being determined arithmetically from the measured phase currents so that the measured phase currents, a spatial angle of the measuring phases, and a spatial angle of the remaining phases are used for arithmetic determination, in which the measuring interval is selected to be with respect to time outside a switching-on point-in-time or switching-off point-in-time of at least one of the active switching elements of the stator phases.

3. 发明申请

US20190149079A1 METHOD FOR SWITCHING OFF A POLYPHASE ELECTRICAL MACHINE IN A MOTOR VEHICLE 审中-公开
公开(公告)号：US20190149079A1
公开(公告)日：2019-05-16
申请号：US16097361
申请日：2016-11-30
申请人： SEG Automotive Germany GmbH
发明人： Julian ROESNER
IPC分类号： H02P27/12 , H02P21/22 , H02P21/30 , H02P25/22
CPC分类号： H02P27/12 , H02P3/18 , H02P21/22 , H02P21/30 , H02P23/0027 , H02P23/20 , H02P25/024 , H02P25/22 , H02P27/06 , H02P27/08
摘要： The invention relates to a method for switching off a multi-phase electric machine (110) in a motor vehicle, the multi-phase electric machine (110) comprising a rotor having a rotor winding (101) and a stator having a multi-phase stator winding (110a), wherein in a block mode (210) of the electric machine (110) a parameter influencing a pole wheel voltage vector (Up) of a pole wheel voltage is adjusted such that the pole wheel voltage reaches a first threshold value (S1), wherein the block mode (210) is deactivated when the first threshold value (S1) is reached and a PWM mode (220) for applying a phase voltage with a phase voltage vector (Us) is activated, wherein the phase voltage vector (Us) and the pole wheel voltage vector (Up) are varied in PWM mode (220) until the parameter influencing the pole wheel voltage reaches a further threshold value (S2), wherein the phase voltage is switched off when the further threshold value (S2) is reached. Furthermore, the invention relates to a computing unit (112) configured to carry out the method.

4. 发明授权

US10141820B2 Method for removing U-shaped winding elements for an electromagnetically excitable core of an electric rotation machine from a setting tool 有权
公开(公告)号：US10141820B2
公开(公告)日：2018-11-27
申请号：US14972687
申请日：2015-12-17
申请人： Robert Bosch GmbH
发明人： Peter Schreiber , Paul Borrmann , Klaus Hilke , Dittmar Kleemann , Hans-Juergen Schwarz
IPC分类号： H02K15/04 , H02K15/06 , B23P19/04
摘要： Method for removing U-shaped winding elements for an electromagnetically excitable core of an electric rotation machine from a setting tool, wherein the U-shaped winding elements are set and are initially located in the setting tool, wherein in one step the winding elements are partially lifted out from the setting tool, so that parts of rod sections of the winding elements are freely accessible from the outside, characterized in that the winding elements are removed from the setting tool by means of a removal device, by gripping the rod sections.

5. 发明授权

US10040357B2 Method for operating an electrified motor vehicle 有权
公开(公告)号：US10040357B2
公开(公告)日：2018-08-07
申请号：US15069626
申请日：2016-03-14
申请人： Robert Bosch GmbH , SEG AUTOMOTIVE GERMANY GMBH
发明人： Axel Reuter , Oliver Dieter Koller
IPC分类号： B60L3/12 , B60L3/00
摘要： A method for operating a motor vehicle having a vehicle electrical system, which includes at least one electrical or electronic component, which experiences a load during an operation of the motor vehicle, an accumulated load of the at least one component being ascertained, at least one type of damage contributing to the load being ascertained, a service life of the at least one component to be expected as a result of the ascertained accumulated load being ascertained, and at least one variable damaging the at least one component during operation, which is selected as a function of the at least one type of damage, being changed in a load-reducing direction if the service life to be expected of the at least one component deviates from a setpoint service life.

6. 发明授权

US09966819B2 Electric machine 有权
公开(公告)号：US09966819B2
公开(公告)日：2018-05-08
申请号：US14414440
申请日：2013-07-11
申请人： Robert Bosch GmbH
发明人： Ruediger Schroth , Klaus Herbold , Gianna Rivera-Schlottbohm , Vassilios Sekertzis
IPC分类号： H02K11/04 , H01L25/11 , H02K5/22
CPC分类号： H02K11/046 , H01L25/115 , H01L2924/0002 , H02K5/225 , H02K2203/09 , H01L2924/00
摘要： The invention relates to an electric machine (10) which is embodied as an alternator, comprising a rotor (20) and an axis of rotation (183), a stator iron (17) which maintains a stator winding (18). Said stator winding (18) comprises phase terminals of winding wires (204), a rectifier circuit (151) which comprises at least one bridge circuit consisting of a positive diode (99) and a negative diode (58). Said positive diode (99) and the negative diode (58) are connected in an electrically conductive manner to the phase terminal of winding wires (204) by means of a metal connecting element (133, 146) which has two half arms (215). One half arm (215) is connected in an electrically conductive manner to a positive diode (99) by means of a connecting section (216) and another half arm (215) is connected in an electrically conductive manner to the negative diode (58) by means of another connecting section. The half arms (215) are oriented in front of the connecting sections (216) in such a manner that the metal surfaces (240) are oriented perpendicular to a rotational axis (183) of the rotor (20). The half arms (215) are arranged parallel to each other on a longitudinal section in front of the connecting sections (216). Said connecting sections (216) start respectively from a half arm (215) and comprise ends (217) which are aligned counter to each other.

7. 发明授权

US09885334B2 Electric machine in a motor vehicle having a rotational speed signal input 有权
公开(公告)号：US09885334B2
公开(公告)日：2018-02-06
申请号：US14197860
申请日：2014-03-05
申请人： Robert Bosch GmbH
发明人： Rolf Jaros , Nikolas Poertner , Axel Reuter , Alexander Trofimov
IPC分类号： F02N11/00 , F02N15/04 , F02N11/08
CPC分类号： F02N11/00 , F02N11/006 , F02N15/04 , F02N2011/0896 , F02N2200/041 , F02N2300/102
摘要： A method for operating an electric machine coupled to an internal combustion engine in a motor vehicle, the electric machine having a stator winding, a rotor winding, a field regulator assigned to the rotor winding and a current converter post-connected to the stator winding having controllable switching elements, in which during a starting process of the internal combustion engine the electric machine is operated as a motor according to a rotational speed specification signal.

8. 发明申请

US20220103039A1 Stator for an electric machine 有权
公开(公告)号：US20220103039A1
公开(公告)日：2022-03-31
申请号：US17474496
申请日：2021-09-14
申请人： SEG Automotive Germany GmbH
发明人： David Rodriguez ESCOBEDO
IPC分类号： H02K3/50 , H02K15/00
摘要： The invention relates to a stator (100) for an electric machine having a stator core (102) and at least one winding (110) which has a winding head (120) protruding axially beyond the stator core (102), wherein the winding head (120) comprises portions of the winding which form reversals of the winding wires, winding connection lines (126) for energizing the winding (110) and at least one radially outwardly arranged first set of winding portions (127) and one radially inwardly arranged second set of winding portions (128) spaced apart from the first set, wherein the portions of the winding connection lines (126) each run in the circumferential direction, do not protrude axially beyond the first (127) and the second (128) sets of winding portions and are arranged radially between and fixed by the first (127) and the second (128) sets of winding portions. The invention also relates to a method for producing such a stator (100) and to an electric machine having such a stator (100).

9. 发明授权

US10557449B2 Method for ascertaining a torque accuracy of a torque transmitted from a belt-driven starter-generator of an internal combustion engine to the internal combustion engine 有权
公开(公告)号：US10557449B2
公开(公告)日：2020-02-11
申请号：US15746152
申请日：2016-06-15
申请人： SEG Automotive Germany GmbH
发明人： Benjamin Klein , Tobias Trzebiatowski , Andreas Greis , Bernd Schroeder , Istvan Deak , Mario Kaepple , Martin Henger
IPC分类号： F02N11/10 , F02N11/04 , F02N11/08 , F02N15/08 , F02B67/06 , F02D41/04 , F02D41/22
摘要： A method for ascertaining a torque accuracy of a torque transmitted from a belt-driven starter-generator of an internal combustion engine to the internal combustion engine, which is similar to a learning process or a calibration of the actual torque of the starter-generator with respect to a setpoint torque, includes controlling the belt-driven starter-generator to transmit a specified test torque to the internal combustion engine during a predefined test time interval during coasting down of the internal combustion engine, determining a speed variable that is dependent on a speed of the internal combustion during the test time interval, comparing the speed variable to a reference variable, and deducing the torque accuracy from this comparison.

10. 发明授权

US10202956B2 Method for starting an internal combustion engine with the aid of a belt-driven starter generator 有权
公开(公告)号：US10202956B2
公开(公告)日：2019-02-12
申请号：US14820275
申请日：2015-08-06
申请人： SEG Automotive Germany GmbH
发明人： Benjamin Klein , Martin Henger
IPC分类号： F02N11/08 , H02P9/08 , F02B67/06 , F01B27/02 , F02N11/04 , F02N15/08 , F16H7/08
摘要： A method for starting an internal combustion engine using a starter generator to which the engine is connected via a belt drive, the belt drive including a belt pulley of the starter generator, a belt pulley of the internal combustion engine, and a belt connecting the belt pulleys in a torque-transmitting manner, includes operating the starter generator such that its drive torque output to the belt pulley of the starter generator is according to a drive torque curve by which an output torque generated temporarily on the belt pulley of the internal combustion engine exceeds the drive torque of the starter generator, taking a gear ratio of the belt drive into consideration.

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