公开(公告)号：US20220410724A1

公开(公告)日：2022-12-29

申请号：US17770880

申请日：2020-10-23

Applicant: ELDOR CORPORATION S.P.A ,  TECNOMATIC S.P.A.

Inventor： Luca ZAI ,  Pasquale FORTE ,  Ruggero SECCIA

IPC: B60L15/20

Abstract: A drive system for a hybrid or electric vehicle includes an electrical energy source; an electric machine, a switching device linked to the electric machine and selectively switchable between a first configuration, and a second configuration, an adjusting device linked to the electric machine and configured to vary its operating parameters, and a control unit. The first electrical configuration includes a first number of conductors in series by phase supplying a first driving torque with a first knee speed and a first no-load operation speed. The second electrical configuration includes a second number of conductors in series by phase supplying a second driving torque, lower than the first driving torque, and a second knee speed higher than the first knee speed. A ratio between the first no-load operation speed and the second knee speed is between 0.7 and 1.3.

公开(公告)号：US20220190691A1

公开(公告)日：2022-06-16

申请号：US17442863

申请日：2020-03-26

Applicant: ELDOR CORPORATION S.P.A. ,  TECNOMATIC S.P.A.

Inventor： Luca ZAI ,  Ruggero SECCIA ,  Javier Eduardo PEREIRA RIVAS ,  Pasquale FORTE ,  Michele ROMAN

IPC: H02K11/28 ,  H02K3/50

Abstract: A switching device for an electric motor provided with a plurality of phases includes a fixed body equipped with a plurality of connection portions and at least one moveable body that can be moved with respect to the fixed body between at least a first position, in which the phases are arranged in a first electrical configuration, and a second position, in which the phases are arranged in a second electrical configuration. The second electrical configuration is separate from the first one due to the connection between the phase fractions within each phase and/or due to the reciprocal connection between the phases.

公开(公告)号：US20240258953A1

公开(公告)日：2024-08-01

申请号：US18561476

申请日：2022-05-13

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Ruggero SECCIA ,  Luca ZAI ,  Pasquale FORTE

IPC: H02P29/60 ,  H02P21/14

CPC classification number: H02P29/60 ,  H02P21/141

Abstract: A method for estimating the magnet temperature in an electrical machine carried out by means of an electronic computer involves estimating a value of a total magnetic flux of the electrical machine and estimating a value of a first partial flux, representing a magnetic flux due to a reluctance of the electrical machine. The method also involves the steps of calculating a value of a second partial flux as a function of a difference between said value of the total magnetic flux and said value of the first partial flux and determining a value of a magnet temperature as a function of said value of the second partial flux.

公开(公告)号：US20220255395A1

公开(公告)日：2022-08-11

申请号：US17631291

申请日：2020-07-29

Applicant: ELDOR CORPORATION S.P.A. ,  POLITECNICO DI MILANO

Inventor： Pasquale FORTE ,  Edoardo Carlo REDAELLI ,  Simone PENNATI ,  Luca ZAI ,  Matteo SAVOIA ,  Maurizio VEDANI ,  Elisabetta GARIBOLDI

IPC: H02K5/20 ,  H02K9/20 ,  H02K9/22 ,  C09K5/06

Abstract: A coolant housing for an electric machine, preferably for automotive use, includes a hollow body extending around its own central axis and provided with a radially internal wall, delimiting a reception volume of an electric machine, and a radially external wall. The housing further includes a cavity delimited between the radially internal wall and the radially external wall and containing at least one latent heat storage element arranged inside said cavity.

公开(公告)号：US20250033483A1

公开(公告)日：2025-01-30

申请号：US18709478

申请日：2022-11-10

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Javier Eduardo PEREIRA RIVAS ,  Luca ZAI ,  Pasquale FORTE ,  Michele ROMAN

IPC: B60L3/00 ,  H02K3/28 ,  H02P23/00 ,  H02P29/032

Abstract: An electric or hybrid electric-endothermic traction system, comprises an electric machine, an inverter, a battery, and a switching device configured to switch between a low-speed configuration, wherein the stator windings assume a first electric configuration, and a high-speed configuration, wherein the stator windings assume a second electric configuration, wherein the first electric configuration determines a voltage induced by the rotation of the rotor that, on reaching a pre-determined threshold value of the angular velocity of the rotor, exceeds a supply voltage of the battery pack, while the second electric configuration of the stator windings determines a voltage induced by the rotation of the rotor that is lower than the voltage of the battery for any angular velocity within a field of use of the machine. The switching device switches from the low-speed to the high-speed configuration when the rotor reaches a switching speed lower than or equal to the threshold value.

公开(公告)号：US20230299631A1

公开(公告)日：2023-09-21

申请号：US18006320

申请日：2021-07-22

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Pasquale FORTE ,  Michele ROMAN ,  Luca ZAI ,  Ruggero SECCIA

IPC: H02K3/28 ,  H02K11/24

CPC classification number: H02K3/28 ,  H02K11/24

Abstract: An electric motor includes a plurality of phases and a switching device. The phases extend between respective terminals and are divided into a plurality of distinct groups, in particular at least a first group and a second group. The switching device is coupled to the first group and is operable to switch an electrical configuration thereof. The second group of phases is instead configured to maintain its electrical configuration unchanged during the switching of the electrical configuration of the first group.

公开(公告)号：US20210229558A1

公开(公告)日：2021-07-29

申请号：US17257289

申请日：2019-07-17

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Pasquale FORTE ,  Luca ZAI

IPC: B60L50/16 ,  B60K1/02 ,  B60K6/24 ,  B60K6/26 ,  B60K6/28 ,  B60K6/36 ,  B60L15/20

Abstract: An endothermic/electric hybrid propulsion system for a vehicle comprises a first propulsion unit, of the electrical type, provided with at least a first electric machine (EM1) coupled to a transmission shaft, a second propulsion unit, of the hybrid type, provided with an output shaft and comprising at least one internal combustion engine (ICE) and at least one second electric machine (EM2) which can be selectively coupled together to provide torque to the output shaft in an independent or combined manner and a coupling member operatively interposed between the output shaft of the second propulsion unit and the transmission shaft of the first propulsion unit.

公开(公告)号：US20250030321A1

公开(公告)日：2025-01-23

申请号：US18709477

申请日：2022-11-10

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Javier Eduardo PEREIRA RIVAS ,  Luca ZAI ,  Pasquale FORTE ,  Michele ROMAN

IPC: H02K11/33 ,  H02K7/00

Abstract: An electric or hybrid electric-endothermic traction system comprises an electric machine, an inverter, a battery, and a switching device configured to switch between a low-speed configuration, in which the stator windings assume a first electric configuration, and a high-speed configuration, in which the stator windings assume a second electric configuration, wherein the first electric configuration results in a voltage induced by the rotation of the rotor that, on reaching a pre-determined threshold value of the angular velocity of the rotor, exceeds a supply voltage of the battery, whereas the second electric configuration of the stator windings results in a voltage induced by the rotation of the rotor that is lower than the voltage of the battery for any angular velocity within a range of use of the machine. An emergency device is connected to the switching device, control unit and/or inverter.

公开(公告)号：US20250007436A1

公开(公告)日：2025-01-02

申请号：US18709479

申请日：2022-11-10

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Pasquale FORTE ,  Luca ZAI ,  Ruggero SECCIA ,  Javier Eduardo PEREIRA RIVAS

IPC: H02P23/00 ,  H02P25/18 ,  H02P29/66

Abstract: Method for reconfiguring an electric machine including a rotor arranged to rotate with an angular speed (ω), the electric machine being arranged to pass from a first configuration (config1) to a second configuration (config2), the method comprising the steps of: a) determining in real-time a real speed threshold (ωreal_th) depending on the current operating condition of the electric machine; b) checking if the angular speed (ω) of the rotor is greater than said real speed threshold (ωreal_th); c) in positive case, no reconfiguration is performed from the first configuration (config1); d) in negative case: d.1) determining the current configuration of the electric machine; d.2) selecting a reconfiguring decision method; d.3) deciding whether to reconfigure the electric machine or not and, in positive case, reconfiguring the electric machine.

公开(公告)号：US20240421649A1

公开(公告)日：2024-12-19

申请号：US18833253

申请日：2023-01-26

Applicant: ELDOR CORPORATION S.P.A.

Inventor： Pasquale FORTE ,  Luca ZAI ,  Davide ROSSI

IPC: H02K3/28

Abstract: It is disclosed a winding stator with bar conductors for an electric machine. The stator comprises a stator core and a stator winding. The stator core comprises a plurality of slots extending along the axial direction of the stator core. The stator winding comprises a plurality of bar conductors connected together in series to form the stator winding. Each slot comprises a plurality of first and/or second legs of different bar conductors arranged side-by-side along a radial direction of the stator core defined by the secondary extension of the stator core. The plurality of bar conductors is arranged at the insertion side in groups comprising at least two bar conductors having the respective first legs arranged side-by-side along the radial direction of a slot and having the respective second legs arranged side-by-side along the radial direction of another slot.