WO2024255963A1 - Rotoranordnung, elektrische maschine, verfahren zur steuerung einer rotoranordnung, computerprogrammprodukt und steuereinheit - Google Patents
Rotoranordnung, elektrische maschine, verfahren zur steuerung einer rotoranordnung, computerprogrammprodukt und steuereinheit Download PDFInfo
- Publication number
- WO2024255963A1 WO2024255963A1 PCT/DE2024/100517 DE2024100517W WO2024255963A1 WO 2024255963 A1 WO2024255963 A1 WO 2024255963A1 DE 2024100517 W DE2024100517 W DE 2024100517W WO 2024255963 A1 WO2024255963 A1 WO 2024255963A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- coolant pump
- cooling
- control unit
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines
- H02K15/125—Heating or drying of machines in operational state, e.g. standstill heating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
Definitions
- the present invention relates to a rotor arrangement for an electric machine of a drive train of a motor vehicle, comprising a rotor with a rotor body that is arranged in a rotationally fixed manner on a rotor shaft, a cooling circuit that runs through the rotor in sections, wherein the cooling circuit in the rotor body has a plurality of rotor cooling channels that are arranged in a circumferentially distributed manner and extend in the axial direction through the rotor body, a coolant pump arranged in the cooling circuit that conveys a cooling fluid through the cooling circuit, and a control unit for controlling the coolant pump.
- the invention further relates to an electric machine, a method for controlling a rotor arrangement, a computer program product, and a control unit.
- Electric motors are increasingly being used to power motor vehicles in order to create alternatives to combustion engines that require fossil fuels.
- Considerable efforts have already been made to improve the everyday suitability of electric drives and to offer users the driving comfort they are used to.
- hybrid drive trains are also known.
- Such drive trains in a hybrid vehicle usually comprise a combination of an internal combustion engine and an electric motor, and enable - for example in urban areas - purely electric operation while at the same time providing sufficient range and availability, especially for cross-country journeys. In certain operating situations, it is also possible to drive the vehicle simultaneously using the internal combustion engine and the electric motor.
- the electrical machines intended for e-axles and hybrid modules there is a continuing need to increase their power density, so that the cooling of the electrical machines required for this is becoming increasingly important. Due to the necessary cooling performance, hydraulic fluids such as cooling oils have become established in most concepts for removing heat from the thermally stressed areas of an electrical machine.
- jacket cooling and winding head cooling are known from the state of the art for the implementation of cooling of electrical machines using hydraulic fluids. While jacket cooling transfers the heat generated on the outer surface of the rotor core into a cooling circuit, with winding head cooling the heat transfer takes place directly on the conductors outside the rotor core in the area of the winding heads into the fluid.
- air-cooled rotors are also known from the state of the art, for example with a blade wheel that sits axially on the rotor.
- a summary of the relevant state of the art can be found, for example, in DE 10 2018 220 810 A1.
- centrifugal force can be used to guide a coolant in the rotor at speed.
- cooling channels with increasing pitch diameter are used for this purpose, in DE102017112348A1 a conically expanding shaft is shown. In these In some cases, the work of pumping the coolant is done by the electric machine itself and not by an external oil pump.
- a rotor arrangement for an electric machine of a drive train of a motor vehicle comprising a rotor with a rotor body which is arranged in a rotationally fixed manner on a rotor shaft, a cooling circuit which runs in sections through the rotor, wherein the cooling circuit in the rotor body has a plurality of rotor cooling channels which are arranged circumferentially distributed and extend in the axial direction through the rotor body, a coolant pump arranged in the cooling circuit which conveys a cooling fluid through the cooling circuit, and a control unit for controlling the coolant pump, wherein the control unit is configured to a.
- the coolant pump into a first conveying state when a first start-up signal is present before and/or when the rotor is rotated up from a standstill, by means of which the rotor cooling channels are flooded with the cooling fluid, and/or b. to cause the rotor body to heat up when a second start-up signal is present before and/or when the rotor is rotated up from a standstill, and/or c. the coolant pump switches to a second stop signal when a first stop signal is present and/or when the rotor is turned down to a standstill. to put the coolant pump into a delivery state by which the rotor cooling channels are emptied of the cooling fluid by centrifugal force and/or gravity, and/or d.
- the coolant pump is set to a first delivery state when a first start-up signal is present before and/or when the rotor is rotated up from standstill, through which the rotor cooling channels are flooded with the cooling fluid.
- This imbalance would create a large load on bearings and components at high speeds, which is avoided by setting the coolant pump to a first delivery state in which the rotor cooling channels are flooded with the cooling fluid. For example, before starting to rotate, the coolant pump is briefly operated with a high volume flow in order to fill all rotor cooling channels and compensate for any possible imbalance.
- the cooling fluid in the rotor cooling channels can be heated in a targeted manner, for example by means of targeted rotor coil excitation. The heating can also take place before the vehicle starts rotating or driving off, for example as soon as the vehicle is unlocked or when a brake or clutch pedal is pressed.
- the control unit can cause the rotor body to heat up when a second start-up signal is present and/or when the rotor starts rotating from a standstill.
- the coolant pump when an intention to stop is detected, the coolant pump is deactivated early to allow the remaining oil to drain from the cooling elements.
- the coolant pump when a first stop signal is present before and/or when the rotor is turned down to a standstill, the coolant pump can be put into a second delivery state, through which the rotor cooling channels are emptied of the cooling fluid by centrifugal force and/or gravity.
- the coolant pump is preferably deactivated and is not actively powered, so that it does not pump any coolant through the cooling circuit, which can contribute to improving the overall energy efficiency of the rotor arrangement.
- the outlet opening of the rotor cooling channels is not located as radially outward as possible, it may happen that a certain residual amount of cooling fluid remains in the rotor cooling channels, which can happen in particular if the rotor shaft comes to a standstill relatively quickly.
- the coolant pump is put into a third delivery state when a second run-out signal is present before and/or when the rotor is rotated down to a standstill, through which the rotor cooling channels are emptied of the cooling fluid by means of the coolant pump.
- the shaft arrangement according to the invention also offers the possibility of controlling the coolant pump as needed, i.e. the rotor is preferably not cooled permanently by the energized coolant pump, whereby high losses due to the coolant pump and drag losses in the rotor bearings due to the cooling fluid can be avoided.
- a uniform distribution of the cooling fluid at very low flow rates of the coolant pump is generally difficult to achieve, which means that a preferably sequential operation of the coolant pump is particularly advantageous. This ensures that the rotor cooling channels are sufficiently filled and, optionally, the rotor bearings are also supplied with cooling fluid.
- a sequential control of the coolant pump by means of the control unit can be particularly advantageous, which can be configured as follows:
- control unit controls the coolant pump in such a way that the coolant is pumped between 2 seconds and 30 seconds after the start-up process with a minimum operating time of 3 seconds and a maximum operating time of 60 seconds.
- control unit can control the coolant pump in such a way that the coolant is delivered sequentially with a time interval of 40 seconds to 15 minutes between two delivery intervals.
- the maximum operating time of the coolant pump is 60 seconds.
- the coolant pump can be controlled depending on the load. Parameters such as the coolant temperature and/or the engine load and/or the rotor speed can also be determined and taken into account by the control unit.
- a start-up signal can, for example, consist of one or more of the following signals selected from the group of driver door opening signals, clutch actuation signals, brake release signals, accelerator pedal actuation signals, driver seat usage signals, ignition lock actuation signals.
- a coasting signal can, for example, consist of one or more of the following signals selected from the group of brake actuation signals, accelerator pedal release signals, recuperation mode activation signal.
- a rotor is the rotating part of an electrical machine.
- the rotor comprises in particular a rotor shaft.
- the rotor shaft can be hollow, which on the one hand results in a weight saving and on the other hand allows the supply of lubricant or coolant to the rotor body.
- a rotor body is understood to mean the rotor without a rotor shaft.
- the rotor body is therefore composed in particular of a rotor laminated core and the permanent magnets introduced into the pockets of the rotor laminated core or fixed circumferentially to the rotor laminated core, as well as any axial cover parts that may be present for closing the pockets.
- the rotor preferably has a plurality of rotor bodies.
- the rotor bodies are essentially of the same part, in particular in Essentially identical. It is highly preferred that the rotor bodies are formed from identical, in particular essentially identical rotor laminations.
- the rotor bodies are therefore particularly preferably formed from a rotor lamination stack, which is composed of a plurality of laminated individual laminations or rotor laminations, usually made of electrical steel, which are layered and packaged one on top of the other to form a stack, the so-called rotor lamination stack.
- the individual laminations can be held together in the rotor lamination stack by gluing, welding or screwing.
- a rotor lamination stack can in particular also have permanent magnets introduced into the pockets of the rotor lamination stack or fixed to the circumference of the rotor lamination stack. It is possible for the rotor lamination stacks to be intertwined with one another, i.e. arranged rotated by an angle to one another. This intertwining can be linear or V-shaped in order to avoid or at least reduce axial forces.
- the rotor can be designed as a permanently excited rotor or a separately excited rotor.
- the separately excited rotor is in particular a component of an electric radial flux machine that is used to convert electrical energy into mechanical energy or vice versa.
- a separately excited rotor is a rotor that is fed by a separate power source, usually a direct current source.
- the separately excited rotor usually requires an external direct current source.
- the separately excited rotor can preferably have a cylindrical rotor body, which advantageously consists of laminated iron in order to reduce eddy current losses.
- This rotor winding is preferably formed from insulated copper or aluminum wires and is guided through the grooves or slots in order to ensure mechanical stability.
- the rotor winding of the separately excited rotor is preferably divided into coils that are electrically connected to one another. These coils are wound parallel to the rotor axis and are usually designed as a multi-phase winding to enable efficient conversion of electrical into mechanical energy. The number of coils and their arrangement depend on the specific requirements of the machine.
- the external DC power source can be connected to the rotor winding via slip rings and carbon brushes, for example.
- the carbon brushes ensure a low-friction electrical connection between the stationary power source and the rotating rotor winding.
- the use of the external DC power source creates a magnetic field in the rotor that interacts with the magnetic field of the stator-side winding system and thus influences the torque and power of the machine.
- the separately excited rotor offers the advantage of external control over the excitation of the rotor.
- the power and torque of the electric machine can be precisely controlled.
- a rotor body can in particular be formed from one or more rotor lamination packs.
- a rotor lamination pack is understood to be a plurality of laminated individual sheets or rotor laminations, usually made of electrical sheet metal, which are layered and packaged on top of one another to form a stack, the so-called rotor lamination pack. The individual sheets can then remain held together in the lamination pack by gluing, welding or screwing.
- a rotor lamination pack for a permanently excited rotor can in particular also have magnetic elements introduced into the pockets of the rotor lamination pack or fixed circumferentially to the rotor lamination pack, as well as any axial cover parts that may be present for closing the pockets and the like.
- the electrical machine can be designed in particular as a rotary machine.
- the rotary machine can be designed in particular as a radial flux machine configured.
- a radial flux machine is characterized by the fact that the magnetic field lines in the air gap formed between the rotor and stator extend in a radial direction.
- the air gap is the gap that exists between the rotor and the stator. In a radial flux machine, this is a gap that is circular in cross-section and has a radial width that corresponds to the distance between the rotor body and the rotor body.
- the electric machine is intended in particular for use within a drive train of a hybrid or fully electric motor vehicle.
- the electric machine is dimensioned such that vehicle speeds of greater than 50 km/h, preferably greater than 80 km/h and in particular greater than 100 km/h can be achieved.
- the electric motor particularly preferably has an output of greater than 50 kW, preferably greater than 80 kW and in particular greater than 150 kW. It is further preferred that the electric machine provides speeds of greater than 8,000 rpm, particularly preferably greater than 12,000 rpm, very particularly preferably greater than 15,000 rpm.
- motor vehicles are considered to be land vehicles that are moved by mechanical power without being tied to railway tracks.
- a motor vehicle can, for example, be selected from the group of passenger cars (PCs), lorries (HGVs), mopeds, light motor vehicles, motorcycles, buses (KOM) or tractors.
- the rotor arrangement can also have a control unit.
- a control unit serves in particular for the electronic control and/or regulation of one or more technical systems of the rotor arrangement and/or the electrical machine, such as the control/regulation of the coolant pump and/or the current supply to a rotor winding.
- a control unit has in particular a wired or wireless signal input for receiving in particular electrical signals, such as sensor signals. Furthermore, a control unit also has preferably a wired or wireless signal output for the transmission of electrical signals in particular.
- Control operations and/or regulation operations can be carried out within the control unit. It is particularly preferred that the control unit comprises hardware that is designed to execute software.
- the control unit preferably comprises at least two electronic processors for executing program sequences defined in each software.
- the two processors can also be structurally integrated into a processor as computer cores, with the corresponding computer cores then each representing a processor in the sense of the invention.
- the control unit can also have one or more electronic memories in which the data contained in the signals transmitted to the control unit can be stored and read out again.
- the control unit can also have one or more electronic memories in which data can be stored in a changeable and/or unchangeable manner.
- a control unit can comprise a plurality of control devices, which are arranged in particular spatially separated from one another in the motor vehicle.
- Control devices are also referred to as electronic control units (ECUs) or electronic control modules (ECMs) and preferably have electronic microcontrollers for carrying out computing operations for processing data, particularly preferably using software.
- the control devices can preferably be networked with one another, so that a wired and/or wireless data exchange between control devices is possible.
- bus systems present in the motor vehicle such as CAN bus or LIN bus.
- control unit has at least one processor and at least one memory, which in particular contains a computer program code, wherein the memory and the computer program code are configured, with the processor, to cause the control unit to execute the computer program code.
- the control unit can particularly preferably comprise power electronics for supplying current to the stator or rotor.
- Power electronics is preferably a combination of various components which control or regulate a current to the electrical machine, preferably including the peripheral components required for this purpose, such as cooling elements or power supplies.
- the power electronics contains one or more power electronic components which are designed to control or regulate a current. This is particularly preferably one or more power switches, e.g.
- the power electronics particularly preferably have more than two, particularly preferably three separate phases or current paths, each with at least one separate power electronics component.
- the power electronics are preferably designed to control or regulate a power with a peak power, preferably continuous power, of at least 10 W, preferably at least 100 W, particularly preferably at least 1000 W per phase.
- the first delivery state of the coolant pump is deactivated by the control unit when a rotor speed of between 100 and 300 rpm is reached.
- the advantage of this embodiment is that the coolant pump initially only has to be operated from standstill to fill or flood the rotor cooling channels in order to subsequently avoid an imbalance when revving up due to the rotor cooling channels not being completely or homogeneously filled.
- the second delivery state of the coolant pump is deactivated by the control unit when a rotor speed of between 100-300 rpm is reached. This can result in the cooling fluid running out of the rotor cooling channels due to gravity and/or centrifugal force above suitable rotational speeds.
- Invention can be provided that in the third delivery state of the coolant pump this is offset in a direction opposite to the conveying direction of the cooling fluid, so that the cooling fluid can be sucked out of the rotor cooling channels by the coolant pump.
- the rotor can be externally excited by means of a rotor winding that can be energized and that the rotor arrangement has a control unit for energizing the rotor winding.
- the possibility of making the rotor externally excited by means of a rotor winding that can be energized results in greater flexibility in controlling the machine.
- the control unit makes it possible to vary the rotor current and thus control the torque, speed or other operating parameters of the machine. This enables more precise adaptation to different operating conditions, load requirements or control objectives.
- the invention can also be further developed in such a way that when the first delivery state of the coolant pump is present, the rotor winding of the rotor is not energized.
- the rotor can also be protected from imbalances in operating situations in which, for example, the vehicle rolls down a slope from a standstill and in which the rotor is not energized but still rotates.
- the rotor shaft is rotatably mounted on at least one rolling bearing, with the cooling circuit being guided through the rolling bearing. This can achieve improved lubrication and cooling of the rolling bearing, which subsequently also has a positive effect on the efficiency of the rotor arrangement.
- the object of the invention can also be achieved by an electrical machine comprising a rotor arrangement according to one of claims 1-7.
- the object of the invention can further be achieved by a method for controlling a rotor arrangement of an electric machine of a drive train of a motor vehicle comprising a rotor with a rotor body which is rotationally fixed is arranged on a rotor shaft, a cooling circuit which runs through the rotor in sections, wherein the cooling circuit in the rotor body has a plurality of rotor cooling channels which are arranged circumferentially distributed and extend in the axial direction through the rotor body, a coolant pump arranged in the cooling circuit which pumps a cooling fluid through the cooling circuit, a control unit for controlling the coolant pump, wherein the control unit is configured to carry out the following method steps: a.
- the coolant pump When a second run-out signal is present before and/or when the rotor is turned down to a standstill, the coolant pump is placed in a third delivery state by which the rotor cooling channels are emptied of the cooling fluid by means of the coolant pump.
- the object of the invention can further be achieved by a computer program product stored on a machine-readable carrier or computer data signal embodied by an electromagnetic wave, with a computer program code suitable for carrying out a method according to claim 8.
- control unit for controlling a rotor arrangement, comprising a processor and a memory containing a computer program code, wherein the memory and the computer program code are configured, with the processor, to cause the control unit to carry out a method according to claim 8.
- Figure 1 shows a motor vehicle with an electric drive train in a schematic representation
- Figure 2 shows an electrical machine in a schematic representation
- Figure 3 shows a rotor arrangement in a schematic
- Figure 4 shows a temporal speed and volume flow curve for a first
- Figure 5 shows a temporal speed and volume flow curve for a second delivery state of the coolant pump
- Figure 6 shows a temporal speed and volume flow curve for a third
- FIG 2 shows a rotor arrangement 1 for an electric machine 2 of a drive train 3 of a motor vehicle 4, as is also sketched in Figure 1.
- the electric machine 2 is coupled to a gear arrangement 26 and forms a structural unit with it, which can also be referred to as an axle drive train.
- the rotor assembly 1 comprises a rotor 5 with a rotor body 6, which is arranged rotationally fixed on a rotor shaft 7, a cooling circuit 8, which runs through the rotor 5 in sections, wherein the cooling circuit 8 has a plurality of rotor cooling channels 9 in the rotor body 6, which are arranged distributed around the circumference and extend in the axial direction through the rotor body 6. Furthermore, the rotor arrangement 1 has a coolant pump 10 arranged in the cooling circuit 8, which pumps a cooling fluid 11 through the cooling circuit 8, as well as a control unit 12 for controlling the coolant pump 10.
- the electrical machine 2 is designed as a radial flow machine, with a hollow cylindrical stator 23, in which the rotor 5 is rotatably received.
- the hollow cylindrical rotor shaft 7 has a plurality of openings in its outer surface through which the cooling fluid 11 can flow radially outward into an annular gap of the rotor 5.
- This annular gap is connected to the rotor cooling channels 9.
- the cooling fluid 11 is then led out of the rotor 5 again at a radially inner outlet opening and can be fed from there, for example, to a rolling bearing 20, as shown in Figure 3.
- the rotor 1 can be externally excited by means of a rotor winding 19 that can be energized, and the rotor arrangement 1 has a control unit with a rotor power supply 24 for energizing the rotor winding 19. This can be electrically connected to the rotor shaft 7 or the rotor winding 19 via a sliding contact 25.
- the rotor power supply 24 is connected to the control unit 12.
- a second start-up signal 13 is present before and/or when the rotor 5 is rotated up from a standstill, the rotor body 6 can be heated via the energized rotor winding 19.
- the rotor shaft 7 is rotatably mounted on at least one roller bearing 20, with the cooling circuit 8 being guided through the roller bearing 20.
- the control unit 12 for controlling the rotor arrangement 1 comprises a processor 21 and a memory 22 containing a computer program code, wherein the memory and the computer program code are configured to communicate with the processor 21 to cause the control unit 12 to carry out a method that will be described in more detail below.
- the control unit 12 can have inputs for various signals 13, 15, 17, by means of which the operation of the rotor arrangement 1 is controlled or regulated.
- the control unit 12 is now configured to place the coolant pump 10 into a first delivery state 14 when a first start-up signal 13 is present before and/or when the rotor 5 starts rotating from standstill, through which the rotor cooling channels 5 are flooded with the cooling fluid 11, whereby this first delivery state 14 of the coolant pump 10 is deactivated by the control unit 12 when a rotor speed of between 50-300 rpm is reached.
- This first delivery state 14 can also be understood using the diagrams in Figure 4. The speed and volume flow curves for an energized and a de-energized rotor are shown there. The first delivery state 14 of the coolant pump 10 can therefore take place when the rotor winding 19 of the rotor 1 is energized or de-energized.
- the coolant pump 10 is activated immediately when the rotor shaft 7 starts rotating or shortly before (for example when the brake pedal is released) and fills the rotor cooling channels 9 of the rotor 5 as quickly as possible. As soon as a speed of between 50-300 rpm is reached, the coolant pump 10 can be deactivated because the centrifugal force prevails over gravity and the cooling fluid 11 therefore remains in the rotor cooling channels 9. As soon as the electric machine 2 is actively powered again, cooling fluid 11 must be pumped again in accordance with the required cooling capacity.
- cooling fluid 11 in the rotor cooling channels 9 can be heated in a targeted manner by means of targeted rotor coil excitation. This can also be done before starting to rotate or drive off, for example as soon as the vehicle is unlocked or when Operating the accelerator, brake or clutch pedal.
- the coolant pump 10 into a third delivery state 18 when a second run-out signal 17 is present before and/or when the rotor 5 is brought to a standstill, through which the rotor cooling channels 9 are emptied of the cooling fluid 11 by means of the coolant pump 10.
- This can also be understood from the speed and volume flow curve in Figure 6.
- in the third delivery state 18 of the coolant pump 10 it has been put in a delivery direction opposite to the delivery direction of the cooling fluid 11. If complete emptying by switching off the coolant pump 10 during the braking process is not sufficient, the residual liquid can be sucked out of the rotor cooling channels 9 by the inverse operation of the coolant pump 10.
- the coolant pump 10 must of course enable the suction to function.
- This inverse operation of the coolant pump 10 can be operated for approx. 40-80 ms at a volume flow of approx. 8 l/min. At other volume flows, the time changes proportionally.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480026063.6A CN120981999A (zh) | 2023-06-14 | 2024-06-11 | 转子装置、电机、用于控制转子装置的方法、计算机程序产品和控制单元 |
| EP24735496.2A EP4728622A1 (de) | 2023-06-14 | 2024-06-11 | Rotoranordnung, elektrische maschine, verfahren zur steuerung einer rotoranordnung, computerprogrammprodukt und steuereinheit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023115500.8 | 2023-06-14 | ||
| DE102023115500.8A DE102023115500B4 (de) | 2023-06-14 | 2023-06-14 | Rotoranordnung, elektrische Maschine, Verfahren zur Steuerung einer Rotoranordnung, Computerprogrammprodukt und Steuereinheit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024255963A1 true WO2024255963A1 (de) | 2024-12-19 |
Family
ID=91664206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2024/100517 Ceased WO2024255963A1 (de) | 2023-06-14 | 2024-06-11 | Rotoranordnung, elektrische maschine, verfahren zur steuerung einer rotoranordnung, computerprogrammprodukt und steuereinheit |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4728622A1 (de) |
| CN (1) | CN120981999A (de) |
| DE (1) | DE102023115500B4 (de) |
| WO (1) | WO2024255963A1 (de) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180241288A1 (en) * | 2015-10-28 | 2018-08-23 | Mitsubishi Electric Corporation | Rotating electrical machine cooling structure, and control method thereof |
| DE102017112348A1 (de) | 2017-06-06 | 2018-12-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektrische Maschine |
| DE102018101641B3 (de) * | 2018-01-25 | 2019-01-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vorrichtung zur Kühlung einer Rotorwelle eines Elektromotors |
| DE102018220810A1 (de) | 2018-12-03 | 2020-06-04 | Audi Ag | Fluidgekühlter Rotor für eine elektrische Maschine |
| US20200350796A1 (en) * | 2016-06-07 | 2020-11-05 | Tesla, Inc. | Electric motor waste heat mode to heat battery |
| US11146133B2 (en) | 2018-08-30 | 2021-10-12 | General Electric Company | Electric machine with rotor coolant and lubrication distribution system, and systems and methods of cooling and lubricating an electric machine |
| DE102022107260A1 (de) * | 2021-03-30 | 2022-10-06 | Nidec Corporation | Antriebsvorrichtung und Antriebsvorrichtung-Steuerungsverfahren |
| WO2023006216A1 (en) * | 2021-07-30 | 2023-02-02 | Gkn Automotive Limited | Electric drive arrangement for a vehicle |
| DE102022209152A1 (de) * | 2021-09-03 | 2023-03-09 | Dana Limited | Luftspalt-spülsystem für ölgekühlten elektromotor |
| DE102021212153A1 (de) * | 2021-10-27 | 2023-04-27 | Mahle International Gmbh | Elektrische Maschine |
-
2023
- 2023-06-14 DE DE102023115500.8A patent/DE102023115500B4/de active Active
-
2024
- 2024-06-11 WO PCT/DE2024/100517 patent/WO2024255963A1/de not_active Ceased
- 2024-06-11 EP EP24735496.2A patent/EP4728622A1/de active Pending
- 2024-06-11 CN CN202480026063.6A patent/CN120981999A/zh active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180241288A1 (en) * | 2015-10-28 | 2018-08-23 | Mitsubishi Electric Corporation | Rotating electrical machine cooling structure, and control method thereof |
| US20200350796A1 (en) * | 2016-06-07 | 2020-11-05 | Tesla, Inc. | Electric motor waste heat mode to heat battery |
| DE102017112348A1 (de) | 2017-06-06 | 2018-12-06 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektrische Maschine |
| DE102018101641B3 (de) * | 2018-01-25 | 2019-01-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vorrichtung zur Kühlung einer Rotorwelle eines Elektromotors |
| US11146133B2 (en) | 2018-08-30 | 2021-10-12 | General Electric Company | Electric machine with rotor coolant and lubrication distribution system, and systems and methods of cooling and lubricating an electric machine |
| DE102018220810A1 (de) | 2018-12-03 | 2020-06-04 | Audi Ag | Fluidgekühlter Rotor für eine elektrische Maschine |
| DE102022107260A1 (de) * | 2021-03-30 | 2022-10-06 | Nidec Corporation | Antriebsvorrichtung und Antriebsvorrichtung-Steuerungsverfahren |
| WO2023006216A1 (en) * | 2021-07-30 | 2023-02-02 | Gkn Automotive Limited | Electric drive arrangement for a vehicle |
| DE102022209152A1 (de) * | 2021-09-03 | 2023-03-09 | Dana Limited | Luftspalt-spülsystem für ölgekühlten elektromotor |
| DE102021212153A1 (de) * | 2021-10-27 | 2023-04-27 | Mahle International Gmbh | Elektrische Maschine |
Non-Patent Citations (1)
| Title |
|---|
| VON ERIK SCHNEIDERFRANK FICKLBERND CEBULSKI: "Artikel der Zeitschrift ATZ", JAHRGANG, vol. 113, May 2011 (2011-05-01), pages 360 - 365 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120981999A (zh) | 2025-11-18 |
| EP4728622A1 (de) | 2026-04-22 |
| DE102023115500B4 (de) | 2025-03-27 |
| DE102023115500A1 (de) | 2024-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0876554B2 (de) | Starter/generator für einen verbrennungsmotor, insbesondere eines kraftfahrzeugs | |
| EP0844937B1 (de) | Antriebssystem für ein kraftfahrzeug, mit einem antriebsaggregat und einer elektrischen maschine, und verfahren zum betreiben desselben | |
| EP2576303B2 (de) | Verfahren zum betreiben eines systems, system, steuerung und computerprogrammprodukt | |
| WO2016087101A1 (de) | Elektrische antriebseinheit, hybridantriebseinrichtung und fahrzeug | |
| EP3326852B1 (de) | Motorsteuerung von fahrzeugen mit mehreren e-maschinen | |
| WO2024061412A1 (de) | Kontaktlose energieübertragungsvorrichtung, kit-of-parts zur herstellung einer kontaktlosen energieübertragungsvorrichtung, rotor einer elektrischen maschine und elektrische maschine sowie verfahren zur montage eines rotors | |
| DE102008057101A1 (de) | Verfahren zum Steuern des Betriebs eines Generators in einem Fahrzeugantriebsstrang sowie Fahrzeugantriebsstrang | |
| DE102004055821A1 (de) | Leistungsübertragungssystem mit einer kombinierten Brems- und Funktionseinheit und Verfahren zur Optimierung der Betriebsweise eines hydrodynamischen Retarders in einem Leistungsübertragungssystem | |
| DE102023115500B4 (de) | Rotoranordnung, elektrische Maschine, Verfahren zur Steuerung einer Rotoranordnung, Computerprogrammprodukt und Steuereinheit | |
| EP0846065B1 (de) | Antriebsschlupfsteuerungssystem für ein kraftfahrzeug unter verwendung einer elektrischen maschine | |
| DE102021126750B4 (de) | Verfahren zur Herstellung eines Rotors einer elektrischen Maschine | |
| DE102023115501A1 (de) | Rotoranordnung, elektrische Maschine, Verfahren zur Steuerung einer Rotoranordnung, Computerprogrammprodukt und Steuereinheit | |
| EP4470094A1 (de) | Stator | |
| DE102015219870A1 (de) | Verfahren zum Betreiben einer Asynchronmaschine eines Aggregats sowie Antriebsstrang für ein Kraftfahrzeug | |
| DE102010036510B4 (de) | Verfahren zum Betreiben eines Parallelhybrid-Antriebsstrangs | |
| DE19819480B4 (de) | Zweifach zwangsgetriebener Generator | |
| WO2007036275A1 (de) | Hybridantriebsstrang eines kraftfahrzeugs | |
| WO2025082565A1 (de) | Rotoranordnung, elektrische maschine und elektrischer antriebsstrang | |
| WO2025082566A1 (de) | Rotoranordnung, elektrische maschine und elektrischer antriebsstrang | |
| WO2011160744A1 (de) | Verfahren und vorrichtung zum starten eines verbrennungsmotors | |
| DE102023128927A1 (de) | Rotoranordnung, elektrische Maschine und elektrischer Antriebsstrang | |
| DE102023128928A1 (de) | Rotoranordnung, elektrische Maschine und elektrischer Antriebsstrang | |
| DE102023131084B4 (de) | Elektrische Maschine und elektrischer Achsantriebsstrang | |
| DE102007046852A1 (de) | Kraftfahrzeug | |
| DE102023113417A1 (de) | Rotor und elektrische Maschine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24735496 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024735496 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2024735496 Country of ref document: EP Effective date: 20260114 |
|
| ENP | Entry into the national phase |
Ref document number: 2024735496 Country of ref document: EP Effective date: 20260114 |
|
| ENP | Entry into the national phase |
Ref document number: 2024735496 Country of ref document: EP Effective date: 20260114 |
|
| ENP | Entry into the national phase |
Ref document number: 2024735496 Country of ref document: EP Effective date: 20260114 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2024735496 Country of ref document: EP |