WO2023147812A1 - Dispositif de commande pour commander une pompe, et pompe - Google Patents

Dispositif de commande pour commander une pompe, et pompe Download PDF

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Publication number
WO2023147812A1
WO2023147812A1 PCT/DE2023/100055 DE2023100055W WO2023147812A1 WO 2023147812 A1 WO2023147812 A1 WO 2023147812A1 DE 2023100055 W DE2023100055 W DE 2023100055W WO 2023147812 A1 WO2023147812 A1 WO 2023147812A1
Authority
WO
WIPO (PCT)
Prior art keywords
bridge driver
pump
control unit
designed
microcontroller
Prior art date
Application number
PCT/DE2023/100055
Other languages
German (de)
English (en)
Inventor
Ludwig EISENBEIS
Wolfgang Käshammer
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2023147812A1 publication Critical patent/WO2023147812A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
    • H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor

Definitions

  • Control unit for controlling a pump and pump
  • the invention relates to a control unit for controlling a pump, having a power pack, a first bridge driver, a microcontroller for controlling the first bridge driver, and an output stage.
  • the invention relates to a pump with such a control device.
  • control unit is to be provided that can implement a number of different functions reliably and independently of one another and at the same time is constructed as cost-effectively as possible.
  • control unit having the features of claim 1 or by a pump having the features of the independent claim.
  • control unit has a second bridge driver, the first bridge driver and the second bridge driver being designed so that either the first bridge driver or the second bridge driver pump controls.
  • an additional bridge driver is integrated in the control unit, which also commutates the pump in order to be able to implement a first function from the first bridge driver and a second function from the second bridge driver.
  • control unit can be designed in such a way that activation of the first bridge driver and activation of the second bridge driver are inverted. This safely prevents both bridge drivers from working at the same time and sending control signals to the pump.
  • control device can be designed in such a way that the output stage can be used jointly by the first bridge driver and the second bridge driver. This has the advantage that because the two bridge drivers share the output stage, only one output stage is required, which has a positive effect on costs.
  • control device can be designed in such a way that the power pack can be used jointly by the first bridge driver and the second bridge driver. This has the advantage that because the same power pack can be used for both functions, an additional power pack and the associated additional costs can be omitted.
  • the second bridge driver can have an internal memory, with the second bridge driver being designed to read information from the internal memory and to control the pump on the basis of the information read out.
  • the second bridge driver thus has a certain intelligence in order to be able to control the pump without having to provide a (further) microcontroller.
  • the first bridge driver can be designed to control the pump in normal operation of the pump. This means that the first bridge driver, which is again controlled by the microcontroller, takes over control of the pump in regular operation.
  • the second bridge driver can be designed to control the pump in the event of a fault.
  • the second bridge driver is designed in particular to put the pump in a defined state, for example to deactivate certain components and to ensure cooling of the pump's e-machine (to avoid overheating).
  • the microcontroller can be designed to switch over from the first bridge driver to the second bridge driver in the event of an error. This ensures that the "correct" bridge driver is activated in the event of an error. That is, a safe-state signal is used to trigger switching to the second bridge driver.
  • the first bridge driver can be designed in such a way that it switches its outputs to high resistance/high impedance (in HI-Z/high impedance) when the microcontroller switches from the first bridge driver to the second bridge driver.
  • the same power stage can be used together.
  • the object of the invention is also achieved by a pump with a described control unit.
  • the invention relates to a pump in which a safe-state function is integrated in the control unit of the pump.
  • the background of the pump is that the combination of several functions in one control unit can result in dependencies, so that individual functions can be changed according to the integration can no longer be completely separated from one another.
  • the so-called safe-state function is affected, which means that the control unit is put into a defined “safe” state in the event of an error.
  • the safe-state function can be used to disable control unit components or put them into a defined state in order to prevent the control unit and thus the system from malfunctioning. In order to be able to ensure the independence of the functions, it is customary in known control devices to separate the functions.
  • the safe-state function may be required to continue cooling an e-machine of the pump in the event of a fault and to prevent overheating in the active short circuit, for which the pump can be set up as an external smart pump.
  • this requires an additional control unit with a power pack, microcontroller and bridge driver, which entails increased costs for the additional components and possibly an additional housing.
  • a second bridge driver is exclusively (additionally) used and it is ensured that exactly one of the two bridge drivers commutes the pump in every situation. As a result, existing components can continue to be used and it is not necessary to duplicate the existing control device or to provide a (complete) second control device.
  • the activation of the second bridge driver can preferably be inverted, so that one of the two bridge drivers is always working and simultaneous working is prevented.
  • the second bridge driver which controls the pump in the event of an error/safe state, can bring a certain intelligence to control the pump based on information in the internal memory (EEPROM: “Electrically Erasable Programmable Read-Only Memory”) is provided by the main microcontroller to the first bridge driver.
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • a control unit that controls a pump consists of a power pack, a microcontroller, a bridge driver and the output stage, with the invention adding a second bridge driver that shares the output stage with the other (first) bridge driver.
  • the first (“main") bridge driver is controlled by the microcontroller, while the second bridge driver is controlled on the basis of data in an EEPROM, for example via a speed specification.
  • the switching can be done by an inverted enable logic, so that always only one bridge driver is active.
  • the first bridge driver is therefore normally available, with the microcontroller no longer being able to control the pump in the event of an error/safe state.
  • the safe state signal is used to trigger the switchover so that the second (“safe state”) bridge driver then takes over.
  • High impedance refers to an output signal condition where the signal is not driven. The signal is left open, allowing another output pin to drive the signal.
  • FIG. 1 shows a schematic block diagram of a mode of operation of a control device for controlling a pump.
  • control unit 1 shows a schematic structure of a control unit 1 for controlling a pump (not shown explicitly).
  • the control unit 1 has a power pack.
  • control unit 1 has a first bridge driver 2, for example a B6 driver, TLE 9180.
  • the control unit 1 has a microcontroller 3 for controlling the first bridge driver 2, for example a PC, TC3x7.
  • the control unit 1 has an output stage 4 .
  • control device 1 has a second bridge driver 5, for example a sensorless controller, A4964.
  • first bridge driver 2 and the second bridge driver 5 are designed such that either the first bridge driver 2 or the second bridge driver 5 controls the pump.
  • this can be achieved in that the control unit 1 so is formed such that an activation of the first bridge driver 2 and an activation of the second bridge driver 5 are inverted.
  • the first bridge driver 2 is preferably designed to control the pump in normal operation of the pump.
  • the second bridge driver 5 is preferably designed to control the pump in the event of a fault.
  • the safe-state signal 8 emanating from the microcontroller 3 ensures that, in the event of a fault, switching takes place from the first bridge driver 2 to the second bridge driver 5 .
  • the first bridge driver 2 is designed in such a way that it switches its outputs to H1-Z when the microcontroller 3 switches from the first bridge driver 2 to the second bridge driver 5 .
  • the output stage 4 can be used jointly by the first bridge driver 2 and the second bridge driver 5 .
  • the power pack can be used jointly by the first bridge driver 2 and the second bridge driver 5 .
  • the second bridge driver 5 has an internal memory (EEPROM) 11 .
  • the second bridge driver 5 is designed to read information from the internal memory 11 and to control the pump on the basis of the information read.
  • the first bridge driver 2 and the second bridge driver 5 control the output stage 4 via a 6-PWM signal (pulse width modulation/square-wave signal) 12 .
  • the microcontroller 3 sends a 6 PWM signal 13 as an input signal to the first bridge driver 2.
  • the first bridge driver sends an actual 3 PWM signal 14 as an input signal to the microcontroller 3.
  • microcontroller 3 sends a reset signal 15 to first bridge driver 2 .
  • Microcontroller 3 and first bridge driver 5 communicate with one another via a serial peripheral interface (SPI) 16 .
  • the first bridge driver 2 sends a current measurement signal 17 to the microcontroller 3.
  • SPI serial peripheral interface
  • SPI serial peripheral interface
  • An SPI (Serial Peripheral Interface) -EOL (end of life) +diagnostic signal 20 is exchanged between the microcontroller 3 and the second bridge driver 5 .
  • the second bridge driver 5 has a 12 volt output 21 .
  • the system base chip 6 has three inputs 22, 23, 24 labeled KL30, KL31 and KL15.
  • the microcontroller 3 communicated with a CAN transceiver (Controller Area Network transceiver) 25, which in turn has a first interface 26, which is designated as CAN1_H (high-speed), and a second interface 27, which is designated as CAN1_L ( low-speed) communicates.
  • a third interface 28, referred to as CAN2_H (high-speed), and a fourth interface 29, referred to as CAN2_L (low-speed) are not connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un dispositif de commande (1) pour commander une pompe, comprenant : une alimentation électrique ; un premier pilote de pont (2) ; un microcontrôleur (3) pour commander le premier pilote de pont (2) ; et un étage de sortie (4), le dispositif de commande (1) comprenant un second pilote de pont (5), le premier pilote de pont (2) et le second pilote de pont (5) étant conçus de sorte que l'un ou l'autre commande la pompe. L'invention concerne également une pompe équipée d'un tel dispositif de commande (1).
PCT/DE2023/100055 2022-02-03 2023-01-25 Dispositif de commande pour commander une pompe, et pompe WO2023147812A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022102537.3 2022-02-03
DE102022102537.3A DE102022102537A1 (de) 2022-02-03 2022-02-03 Steuergerät zum Steuern einer Pumpe sowie Pumpe

Publications (1)

Publication Number Publication Date
WO2023147812A1 true WO2023147812A1 (fr) 2023-08-10

Family

ID=85198970

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2023/100055 WO2023147812A1 (fr) 2022-02-03 2023-01-25 Dispositif de commande pour commander une pompe, et pompe

Country Status (2)

Country Link
DE (1) DE102022102537A1 (fr)
WO (1) WO2023147812A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753822B2 (en) * 2006-11-02 2010-07-13 Chrysler Group Llc Transmission pump drive
DE102016207195A1 (de) * 2016-04-27 2017-11-02 Zf Friedrichshafen Ag System zum aktiven Kurzschließen von Phasen eines Wechselrichters und Kraftfahrzeugantrieb
DE102019206089A1 (de) * 2019-04-29 2020-10-29 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Elektromotors, Antriebssystem und Kraftfahrzeug

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5834462B2 (ja) 2011-04-21 2015-12-24 株式会社デンソー 負荷駆動装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753822B2 (en) * 2006-11-02 2010-07-13 Chrysler Group Llc Transmission pump drive
DE102016207195A1 (de) * 2016-04-27 2017-11-02 Zf Friedrichshafen Ag System zum aktiven Kurzschließen von Phasen eines Wechselrichters und Kraftfahrzeugantrieb
DE102019206089A1 (de) * 2019-04-29 2020-10-29 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Elektromotors, Antriebssystem und Kraftfahrzeug

Also Published As

Publication number Publication date
DE102022102537A1 (de) 2023-08-03

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