EP4515104A1 - Verfahren zum pumpenbetrieb, pumpensteuerung und kühlungsvorrichtung - Google Patents
Verfahren zum pumpenbetrieb, pumpensteuerung und kühlungsvorrichtungInfo
- Publication number
- EP4515104A1 EP4515104A1 EP23719278.6A EP23719278A EP4515104A1 EP 4515104 A1 EP4515104 A1 EP 4515104A1 EP 23719278 A EP23719278 A EP 23719278A EP 4515104 A1 EP4515104 A1 EP 4515104A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- electric motor
- control signal
- control
- component
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
Definitions
- the invention relates to a method for pump operation according to the preamble of claim 1.
- the invention further relates to a pump control and a cooling device.
- DE 102020 106 068 A1 describes a cooling device for cooling a vehicle component, for example an electric motor, having a cooling circuit containing a coolant, a pump circulating the coolant in the cooling circuit, which has an electric motor which is controlled by a control unit for operating the pump becomes.
- DE 102019 134 552 A1 describes a cooling device that implements cooling of an electric motor of a vehicle.
- the electric motor may require a cooling period after the vehicle has been parked.
- the object of the present invention is to operate the fluid pump cost-effectively and reliably during backup operation.
- the cooling of the module should be maintained even during backup operation.
- At least one of these tasks is solved by a method for pump operation with the features according to claim 1.
- the fluid pump can reliably cool the assembly even during backup operation.
- An additional control device for operating the fluid pump during backup operation is unnecessary.
- the assembly can be a drive element for moving the vehicle.
- the drive element can be an electric motor that provides drive power.
- the assembly can also be or include a clutch and/or a transmission of the vehicle.
- the fluid pump can be a gear pump.
- the fluid can be a liquid, for example a hydraulic oil.
- the electric motor can be a brushless DC motor.
- the electric motor can have three motor phases.
- the control signal can be a pulse width modulated signal.
- the control component can be a microcontroller or have a microcontroller.
- the control signal can be absent in the safety mode at least temporarily, in particular permanently, by switching off the control component or by switching off the energy supply to the control component.
- a pump speed of the fluid pump can depend on the control signal.
- a delivery rate of the fluid pump can depend on the pump speed.
- a cooling capacity for cooling the assembly can depend on the delivery rate.
- the safety operation can be an operation of the vehicle in the event of a fault and/or a malfunction, in particular to protect people. During safety operation, movement of the vehicle can be prevented. Backup operation can trigger a shutdown of several components of the vehicle. The safety operation can be triggered in the event of a malfunction of a safety-critical vehicle component. Cooling of the assembly may also be necessary during backup operation to prevent damage or overloading of the assembly.
- the intermediate component can be designed as a programmable logic control unit and/or as a microcontroller.
- the intermediate component is arranged in an electrically effective manner between the control component and the electric motor.
- the intermediate component can be electrically connected to the control component on the one hand and to the electric motor on the other hand.
- a preferred embodiment of the invention is advantageous in which the control signal is transferred to the intermediate component at least temporarily, preferably continuously, during normal operation.
- the intermediate component can store the control signal entered.
- the intermediate component can output the control signal in the backup operation in continuation of the last control signal in the normal operation.
- the intermediate component can output a control signal that is dependent on the last control signal during normal operation and is changed compared to this. This allows a minimum level of fluid flow to be maintained to cool the assembly.
- control signal is passed to the intermediate component and from there to the electric motor during normal operation.
- the control signal can be output unchanged to the electric motor through the intermediate component.
- control signal is passed from the control component to the electric motor, bypassing the intermediate component.
- This can increase functional reliability.
- the function of the intermediate component can be irrelevant to pump operation during normal operation.
- control signal is output to the electric motor during backup operation depending on an input signal to the intermediate component. This means that the cooling can be controlled via the fluid pump even during backup operation.
- the input signal is a signal that characterizes backup operation compared to normal operation.
- the input signal can be a binary signal.
- the input signal can switch between normal operation and backup operation.
- control signal is passed to a bridge circuit of the electric motor, which uses it to build up an operating signal for driving the electric motor.
- the bridge circuit can be a B6 bridge to create a three-phase signal for the electric motor.
- At least one of the previously specified tasks is solved by a pump control with the features according to claim 9.
- the pump control for operating the fluid pump can be made more cost-effective and compact.
- cooling device with the features according to claim 10.
- the cooling device can be designed cost-effectively.
- Figure 1 A method for pump operation during normal operation in a special embodiment of the invention.
- Figure 2 A method for pump operation during backup operation in a further special embodiment of the invention.
- Figure 1 shows a method for pump operation during normal operation in a special embodiment of the invention.
- the method for pump operation 10 is carried out to operate a fluid pump 12, which provides a fluid flow for cooling at least one assembly 14 of a vehicle.
- the assembly 14 can include a drive element 16, for example an electric motor, for providing drive power to move the vehicle.
- the cooling can dissipate the thermal energy of the assembly 14 to the environment.
- the fluid pump 12 is connected to the assembly 14 in a fluid-transmitting manner.
- the fluid pump 12 is operated by a pump control 18 and includes an electric motor 20, which is controlled by an electrical control signal 22 of a control component 24 and drives the fluid pump 12 depending on this.
- the fluid pump 12 and the pump control 18 form a cooling device 26 for cooling the assembly 14.
- the control component 24 can be a microcontroller that outputs a pulse width modulated signal as a control signal 22.
- the control signal 22 is passed to a bridge circuit 28 of the electric motor 20, which uses it to create an operating signal 30 for driving the electric motor 20.
- the bridge circuit 28 may be a B6 bridge that converts the direct current into the three-phase current required to drive the electric motor 20.
- the electric motor 20 is preferably a brushless DC motor.
- An intermediate component 32 is electrically effective between the control component 24 and the bridge circuit 28 and thus the electric motor 20.
- the control signal 22 is provided by the control component 24 and transferred to the intermediate component 32, which outputs the control signal 22 unchanged to the bridge circuit 28.
- the intermediate component 32 is controlled by an input signal 36 controlled, which is, for example, a binary signal and which changes when switching between normal operation 34 and backup operation.
- the intermediate component 32 is designed, for example, as a programmable logic control unit or as a microcontroller.
- a cooling of the assembly 14, which is also required in the backup operation 38, is maintained by the intermediate component 32 outputting the control signal 22 previously received and stored in normal operation to the bridge circuit 28 depending on the input signal 36 and thereby operating the fluid pump 12, even if the control component 24 is switched off.
- the cooling is maintained via the fluid flow of the fluid pump 12 and the pump control 18 can be designed cost-effectively and in a space-saving manner.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022110180.0A DE102022110180A1 (de) | 2022-04-27 | 2022-04-27 | Verfahren zum Pumpenbetrieb, Pumpensteuerung und Kühlungsvorrichtung |
| PCT/DE2023/100272 WO2023208276A1 (de) | 2022-04-27 | 2023-04-13 | Verfahren zum pumpenbetrieb, pumpensteuerung und kühlungsvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4515104A1 true EP4515104A1 (de) | 2025-03-05 |
Family
ID=86185255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23719278.6A Withdrawn EP4515104A1 (de) | 2022-04-27 | 2023-04-13 | Verfahren zum pumpenbetrieb, pumpensteuerung und kühlungsvorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4515104A1 (de) |
| DE (1) | DE102022110180A1 (de) |
| WO (1) | WO2023208276A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1332972C (en) | 1987-12-28 | 1994-11-08 | Yasuyuki Aihara | Cooling control system for internal combustion engines equipped with superchargers |
| US5023531A (en) | 1988-05-19 | 1991-06-11 | Arx, Inc. | Dual hybrid demand refrigeration control apparatus |
| DE10207232B4 (de) | 2002-02-21 | 2005-11-17 | Diehl Ako Stiftung & Co. Kg | Schaltungsanordnung zur Ansteuerung eines elektromotorischen Antriebs, insbesondere Pumpenantriebs, in einem Haushaltgroßgerät |
| DE202006007136U1 (de) * | 2006-05-04 | 2006-07-06 | Lelkes, András, Dr. | Steuereinheit für einen Elektromotor, insbesondere für einen Lüftermotor |
| DE102011120686A1 (de) | 2011-12-09 | 2013-06-13 | Daimler Ag | Verfahren zum Überwachen einer Pumpe |
| DE102017204938B4 (de) | 2017-03-23 | 2019-12-12 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben einer Steuervorrichtung eines Kraftfahrzeugs sowie Steuervorrichtung und Kraftfahrzeug |
| DE102019134552A1 (de) | 2019-12-16 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Verfahren zur Bestimmung einer Nachkühlzeit für einen ein Fahrzeug antreibenden Elektro-Traktionsmotor |
| DE102020106068A1 (de) | 2020-03-06 | 2021-09-09 | Schaeffler Technologies AG & Co. KG | Hydraulikvorrichtung mit einer Pumpe und Verfahren zur Ermittlung eines Fluidvolumenstroms einer Pumpe |
-
2022
- 2022-04-27 DE DE102022110180.0A patent/DE102022110180A1/de not_active Ceased
-
2023
- 2023-04-13 WO PCT/DE2023/100272 patent/WO2023208276A1/de not_active Ceased
- 2023-04-13 EP EP23719278.6A patent/EP4515104A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022110180A1 (de) | 2023-11-02 |
| WO2023208276A1 (de) | 2023-11-02 |
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