Electrical motor arrangement

Patent metadata

Field	Value
Publication number	US-12466253-B2
Application number	US-202418620510-A
Country	US
Kind code	B2
Filing date	Mar 28, 2024
Priority date	Mar 31, 2023
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

According to an embodiment, it is an electrical motor arrangement comprising a first rotation element for providing a first rotational movement, and a second rotation element for providing a second rotational movement, and wherein in a first configuration the first rotation element is configured as a stator and the second rotation element is configured as a rotor, and wherein in a second configuration the first rotation element is configured as the rotor and the second rotation element is configured as the stator of the electrical motor arrangement, wherein the electrical motor arrangement is configured to operate alternately in the first configuration and the second configuration; wherein at least one of the first rotational movement and the second rotational movement is provided to a transmission arrangement, and wherein the electrical motor arrangement is configured for providing a rotational movement for a transmission of a vehicle.

First claim

What is claimed is:

1 . An electrical motor arrangement comprising:
a first rotation element configured for providing a first rotational movement of the electrical motor arrangement; a second rotation element configured for providing a second rotational movement of the electrical motor arrangement; a first brake unit configured to brake the first rotation element; and a second brake unit configured to brake the second rotation element; and wherein in a first configuration, the first rotation element is configured as a stator of the electrical motor arrangement and the second rotation element is configured as a rotor of the electrical motor arrangement; and wherein in a second configuration, the first rotation element is configured as the rotor of the electrical motor arrangement and the second rotation element is configured as the stator of the electrical motor arrangement; whereby at least one of the first rotational movement and the second rotational movement is provided to a transmission arrangement; and wherein the electrical motor arrangement is configured to operate in one of the first configuration and the second configuration by selectively braking one of the first rotation element and the second rotation element; and wherein the electrical motor arrangement is configured for providing a rotational movement for a transmission of a vehicle.

2 . The electrical motor arrangement of claim 1 , wherein the first rotation element is arranged as an outer rotational element of the electrical motor arrangement and the second rotation element is arranged as an inner rotational element of the electrical motor arrangement.

3 . The electrical motor arrangement of claim 1 , wherein the electrical motor arrangement is configured to provide a torque for the transmission, and wherein the torque is provided in the first configuration by the second rotation element and wherein the torque is provided in the second configuration by the first rotation element.

4 . The electrical motor arrangement of claim 1 , wherein the electrical motor arrangement is configured to operate alternately in one of the first configuration and the second configuration.

5 . The electrical motor arrangement of claim 4 , wherein the stator of the electrical motor arrangement is at least partially braked.

6 . The electrical motor arrangement of claim 1 , wherein the transmission arrangement is a planetary gearbox.

7 . The electrical motor arrangement of claim 6 , wherein the first rotation element is connected to a sun wheel of the planetary gearbox and the second rotation element is connected to planets of the planetary gearbox.

8 . The electrical motor arrangement of claim 7 , wherein at least one of the first rotation element and the second rotation element is connected to at least one gear means, wherein the gear means is at least configured to decouple at least one of the first rotation element and the sun wheel and the second rotation element and the planets.

9 . The electrical motor arrangement of claim 8 , wherein a ring gear of the planetary gearbox is connected to an output shaft, and wherein the output shaft is configured to provide a rotational movement of the electrical motor arrangement for the vehicle.

10 . The electrical motor arrangement of claim 1 , wherein in a third configuration, the first rotation element is configured as a first rotor of the electrical motor arrangement and the second rotation element is configured as a second rotor of the electrical motor arrangement.

11 . The electrical motor arrangement of claim 10 , wherein the third configuration is configured for a use in at least one of a change of gear of the transmission and a two-speed transmission.

12 . The electrical motor arrangement of claim 10 , wherein the first rotation element comprises a first torque transmission path for providing the first rotational movement and the second rotation element comprises a second torque transmission path for providing the second rotational movement; and wherein the second rotor is configured to rotate and transfer a torque for a limited time through a secondary rotor via the second torque transmission path while a gear shift occurs on the first torque transmission path.

13 . The electrical motor arrangement of claim 1 , wherein the electrical motor arrangement is configured to be housed in at least a driven axle of the vehicle.

14 . The electrical motor arrangement of claim 1 , wherein the first configuration is used at least one of before and after activation of a gear change of the vehicle, and wherein the second configuration is used during activation of the gear change of the vehicle.

15 . A method comprising:
providing an electrical motor arrangement, wherein the electrical motor arrangement comprising,
a first rotation element configured for providing a first rotational movement of the electrical motor arrangement; a second rotation element configured for providing a second rotational movement of the electrical motor arrangement; a first brake unit configured to brake the first rotation element; and a second brake unit configured to brake the second rotation element; and
wherein in a first configuration, the first rotation element is configured as a stator of the electrical motor arrangement and the second rotation element is configured as a rotor of the electrical motor arrangement; and
wherein in a second configuration, the first rotation element is configured as the rotor of the electrical motor arrangement and the second rotation element is configured as the stator of the electrical motor arrangement;
whereby at least one of the first rotational movement and the second rotational movement is provided to a transmission arrangement; and
wherein the electrical motor arrangement is configured to operate in the first configuration and the second configuration by selectively braking one of the first rotation element and the second rotation element;
controlling the electrical motor arrangement wherein in the first configuration, a first force receiving element of the transmission arrangement is driven and a second force receiving element of the transmission arrangement is braked and whereby in the second configuration, the second force receiving element is driven and the first force receiving element is braked; and
providing at least one of the first rotational movement and the second rotational movement to the transmission arrangement; and
wherein the method is configured for providing rotational movement for a transmission of a vehicle.

16 . The method of claim 15 , wherein the first rotation element is connected to a sun wheel of a planetary gearbox and the second rotation element is connected to planets of the planetary gearbox; and wherein the controlling of the electrical motor arrangement is further comprising: controlling the electrical motor arrangement in a third configuration,
wherein in the third configuration, the first rotation element is configured as a first rotor of the electrical motor arrangement and the second rotation element is configured as a second rotor of the electrical motor arrangement; and wherein in the third configuration, the planets and the sun wheel are driven.

17 . A vehicle comprising an electrical motor arrangement,
wherein the electrical motor arrangement comprising:
a first rotation element configured for providing a first rotational movement of the electrical motor arrangement; a second rotation element configured for providing a second rotational movement of the electrical motor arrangement; a first

Assignees

• Volvo Car Corp

Inventors

• Mounzer Raid

Classifications

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title

• H02K7/1021

  Magnetically influenced friction brakes · CPC title

• H02K7/116

  with gears · CPC title

• H02K7/10

  Structural association with clutches, brakes, gears, pulleys or mechanical starters · CPC title

• B60K17/08 Primary

  of mechanical type · CPC title