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WO2008135327A1 - Traitement de panne sur le moteur électrique d'un entraînement hybride - Google Patents

Traitement de panne sur le moteur électrique d'un entraînement hybride Download PDF

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Publication number
WO2008135327A1
WO2008135327A1 PCT/EP2008/053982 EP2008053982W WO2008135327A1 WO 2008135327 A1 WO2008135327 A1 WO 2008135327A1 EP 2008053982 W EP2008053982 W EP 2008053982W WO 2008135327 A1 WO2008135327 A1 WO 2008135327A1
Authority
WO
WIPO (PCT)
Prior art keywords
time interval
circuit
output
voltage
electric machine
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
Application number
PCT/EP2008/053982
Other languages
German (de)
English (en)
Inventor
Thomas Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2008135327A1 publication Critical patent/WO2008135327A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions

Definitions

  • the invention is based on hybrid vehicles with synchronous electric motor.
  • the operation of the synchronous motor is monitored and shorted to ground in the event of a fault. According to the prior art, therefore, upon detection of a fault, the power connection of the synchronous motor is grounded directly.
  • the invention is based on the consideration that measures taken in the event of a fault should depend on the type of fault that occurs in the electric machine of a hybrid drive.
  • the electrical connection of the electrical machine is not grounded directly after the fault has occurred, but is first enabled for a certain period of time, ie decoupled from the power supply, in order to interrupt the flow of current. It has been recognized that in the case of short circuiting, especially of synchronous motors, damaging current peaks can occur, which can be avoided if the power connection of the synchronous motor is first enabled before short-circuiting.
  • the power connection of the synchronous motor is enabled.
  • at least one current sensor and / or at least one voltage sensor are preferably used, which measure the current flowing into the electric machine and measure the voltage applied to the power supply of the electrical machine or the electric machine itself.
  • the power supply is provided by a pulse inverter whose output voltage is measured.
  • the terminal of the electric machine is released for a long time before going into the short-circuited state as compared with the case where the voltage applied to the terminals of the electric machine or to the power supply of the electric machine exceeds a threshold, that is, when an overvoltage fault occurs.
  • Phase overcurrent faults or overvoltage faults can occur if the power supply of the electrical machine is defective, if a fault occurs in the electrical machine, if the mechanical load at the output of the electric machine has failed
  • the detection of the current or the voltage can be provided digitally or analogously, wherein, for example, a voltage sensor, in particular a direct tap of the applied voltage, is supplied to an evaluation element which outputs a signal when a limit voltage is exceeded.
  • a voltage sensor in particular a direct tap of the applied voltage
  • the current is preferably detected by the power supply has a sense MOSFET on whose sense output from the current flowing through the power amplifier can be detected.
  • the magnetic field generated by the current can be detected, for example by means of Hall sensors or magnetoresistive resistors for detecting the static magnetic field, or by using inductances for Detection of the dynamic magnetic field.
  • shunt resistors can be used, at which a voltage drops, which is proportional to the current flowing through them.
  • the recorded current or voltage values can be further processed in analog or digital form.
  • the detected digital or analog values of continuous current or voltage signals from an error detection circuit are compared with a respective limit value. If the respective value exceeds the limit value, the error detection circuit preferably outputs a voltage level that differs from the voltage level that is output when the respective value is below the limit value. For example, a high level (HIGH) signal may be output when the threshold is exceeded, otherwise a low level signal such as a LOW signal is output.
  • a high level (HIGH) signal may be output when the threshold is exceeded, otherwise a low level signal such as a LOW signal is output.
  • the fault detection circuit is followed by a timer circuit which, depending on the error signal and its level and depending on a time constant, releases the electrical machine before it is short-circuited.
  • the time constant may be implemented by connecting an input of a comparator to an RC element so that a level change from 0 to 1, that is from a low level to a high level, will not affect the output of the comparator until the comparator Capacitor has a corresponding voltage level.
  • Other implementations are LC or LR links as networks that determine the time constant, in combination with digital logic circuits in CMOS or TTL technology, such as AND, OR or XOR gates, or in the form of logic gates, the are switched as monoflop over the networks.
  • the circuits which determine the time constant may further comprise a temperature compensation element which at least partially compensates for a dependence of the time constant on the temperature of the components used.
  • the circuit which specifies the time interval may also be predetermined by a digital circuit, for example a timer (in particular a quartz crystal) and a counter, the elapsed time or the reaching of the end of the time interval being determined by comparing the counter value with a predetermined value becomes.
  • a digital circuit for example a timer (in particular a quartz crystal) and a counter, the elapsed time or the reaching of the end of the time interval being determined by comparing the counter value with a predetermined value becomes.
  • These circuits can be made of individual components, or it can be integrated circuits such as programmable circuits, such as ASICs or field programmable memory devices are used.
  • a timing generator a flip-flop or other constant-frequency signal source may be used instead of a quartz circuit.
  • the time interval between fault detection and short-circuiting of the electric motor is preferably a few microseconds, for example between 0.1 and 10 microseconds, preferably between 1 and 5 microseconds. Further, the time constant is preferably provided such that when a phase overcurrent fault occurs and thereafter an overvoltage fault occurs, for example, within the time interval associated with the phase overcurrent fault, then the time interval between detection of the overvoltage fault and shorting has a length corresponding to the overvoltage fault.
  • the electric machine is preferably connected via a power switching device to the power supply, which interrupts the current flow to the electric machine depending on freewheeling or short-circuit signals or short-circuits the current input of the electric machine, preferably to ground.
  • Parts of the power switching device can also be implemented in the power supply, for example, as an additional emergency stop input, the output stages of the power supply decoupled from the output or sets the output of the power amplifier to ground.
  • the power switching device can be linked to overload fuses that protect the electrical machine.
  • the time intervals depend not only on the types of errors but also on further operating parameters of the hybrid drive, for example the speed of the vehicle driven by the hybrid drive, the operating mode of an internal combustion engine provided in the hybrid drive or from other safety-relevant operating parameters such as the temperature of the components of the drive.
  • the time interval between fault detection and short-circuiting is extended until a current present at the terminals of the electrical machine is below a limit value.
  • FIG. 1 is a circuit diagram of an electric drive with the monitoring circuit according to the invention.
  • FIG. 2 shows an embodiment of the monitoring circuit according to the invention.
  • an electric drive is shown in the form of a circuit diagram, which implements the monitoring circuit according to the invention.
  • the illustrated electric drive is provided to implement the method according to the invention for error treatment.
  • the electric drive comprises a voltage source 10, which supplies a pulse inverter 12 with voltage. This generates from the input voltage a pulse width modulated output voltage, which supplies an electrical machine 30 via a network 20.
  • the pulse inverter is controlled by a drive controller (not shown), via which the operation of the electric machine 30 is controlled.
  • the network 20 includes a voltage sensor 40 which measures the output voltage of the pulse-controlled inverter.
  • the pulse-controlled inverter can output via a connection 42 an internal voltage or a corresponding voltage signal which represents an internal voltage which is linked to the output voltage or the output voltage itself.
  • the network 20 further includes a current sensor 50 which measures the phase current flowing to the electric machine 30 and outputs a corresponding current signal.
  • a monitoring circuit 60 for monitoring the operation of the electric machine 30, a monitoring circuit 60 according to the invention is provided which detects a voltage signal from the voltage sensor 40 and a current signal from the current sensor 50. To detect these signals, the monitoring circuit 60 has a voltage input 62 and a current input 64.
  • the network 20 further includes a controllable flywheel switch 70 and a controllable short-circuit switch 80.
  • the switches may be implemented as a relay, MOSFET, IGBT or equivalent power device.
  • the controllable freewheeling switch 70 is provided between the output of the pulse inverter and the electric machine 30 in order to interrupt the power supply to the electric machine 30 in the event of a fault.
  • FIG. 1 shows the controllable free-wheeling switch between the current sensor 50 and the pulse-controlled inverter 12. However, this can also be connected in series between the current sensor 50 and the be switched electrical machine 30. During normal operation, the controllable free-wheeling switch 70 is closed, so that current can flow from the pulse-controlled inverter 12 to the electric machine 30.
  • the controllable freewheeling switch 70 has a control input, with which the switching state of the controllable freewheeling switch 70 can be controlled, and which is connected to the monitoring circuit 60 via a freewheeling output 66. If the monitoring circuit detects a corresponding error, the monitoring circuit according to the method according to the invention can interrupt the current flow between the pulse-controlled inverter and the electrical machine 30 by activating the controllable freewheeling switch. Similarly, the controllable short-circuit switch 80 has an input which is connected to an output 68 of the monitoring circuit according to the invention. If the monitoring circuit detects an error, it can control the controllable short-circuit switch 80 via the short-circuit output 68 in order to short-circuit the input of the electrical machine 30.
  • the monitoring circuit 60 comprises a logic circuit which ensures that the short-circuiting switch 80 is short-circuited or driven only to short-circuit when the controllable freewheeling switch is open.
  • the controllable short-circuit switch 80 is connected directly in parallel to the electrical machine 30. Alternatively, however, this can also be connected to the electric machine via the current sensor 50. In a further embodiment, the short-circuiting switch is connected directly in parallel with the output terminals of the pulse-controlled inverter.
  • the electric machine 30 is preferably a synchronous machine, for example a synchronous machine with a permanent magnet as the exciter, wherein, alternatively, the electric machine 30 may also be a separately excited synchronous machine, a DC motor or an asynchronous motor.
  • the power supply 10 is preferably the clock battery of a hybrid drive and can be provided by means of high-capacity lead-acid batteries or by means of suitable equivalent electrical energy stores.
  • the circuit shown in Figure 1 may comprise overload fuses.
  • the voltage output 42 of the pulse-controlled inverter can output an internal current signal or further operating parameters in combination or alternatively to the internal voltage signal.
  • the signals output by voltage sensor 40 and current sensor 50 may be analog voltage signals, analog current signals, or digital equivalents thereof.
  • the current sensor 40 and / or the voltage sensor 50 can additionally comprise a comparator circuit, which compares the detected voltage or the detected current with a manipulated value and therefore outputs a signal which corresponds to the exceeding of the respective manipulated value.
  • the inventive concept may be provided by the monitoring circuit 60, but also by a monitoring circuit comprising a voltage sensor and / or a Current sensor comprises, wherein such a reaction may further include the controllable free-wheeling switch and / or the controllable short-circuit switch, or not.
  • the monitoring circuit according to the invention may also comprise the controllable pulse inverter 12 or the voltage and current sensors provided therein.
  • the electric machine may also be polyphase, wherein preferably each phase has a corresponding controllable free-wheeling switch and corresponding controllable shorting switch, which are connected to one or more monitoring circuits according to the invention.
  • these are preferably connected together to transmit error signals, such as phase overcurrent signals and / or overvoltage signals associated with one or more phases.
  • FIG. 2 shows a preferred embodiment of the monitoring circuit according to the invention.
  • the monitoring circuit shown in FIG. 2 comprises an overvoltage input 110, which detects a digital level change when the voltage of the pulse-controlled inverter exceeds a threshold value.
  • a comparator may be used which compares an analog voltage signal with a threshold, or the voltage signal may be applied directly to the input of a digital logic element due to its digital nature also has a switching threshold.
  • the monitoring circuit shown in FIG. 2 comprises a phase overcurrent input 120, which also preferably receives digital signals whose levels represent a phase overcurrent error.
  • the overvoltage input 110 is connected, via NAND logic gates, to a first comparator 130 and a first RC network 140, which together define a time constant.
  • the overvoltage input 110 is connected to the first RC network 140 via NAND logic gates, with the NAND gates 150 providing a reset input 155 which permits the reset of the overvoltage input 110 and the comparator 130, including the first RC network 140.
  • the phase overcurrent 130 is connected to a second comparator 170 via a second RC network 160.
  • Both the first comparator 130 (OPEN COLLECTOR) and also the second comparator 170 (OPEN CORRECTOR) each have at least one pull-up resistor at their outputs.
  • the first RC network thus includes a first resistor 142 and a first capacitor 144
  • the second RC network comprises a second resistor 162 and a second capacitor 164.
  • the rate of change in level change of the respective first and second RC network is thus determined by the resistance of the respective first and second resistors 142 and 162 and the first and second capacitances 144, 146 charged by the same.
  • the first and the second, respectively RC network is further connected to the positive input of the first and second comparators 130, 170, respectively.
  • the first comparator 130 and the second comparator 170 are each provided with at least one pull-up resistor on the output side.
  • the outputs of the first and second comparators 130, 170 are combined via summing NAND gates 180.
  • the output of the summing NAND gate is provided via a NAND gate stage to a total summing NAND gate 190, which further receives a signal from a reset conditioning gate 200.
  • the reset conditioning gate 200 is also a NAND gate that combines the phase overcurrent signal with the input signal of the first RC network 140.
  • the total summing NAND gate 190 outputs a signal to drive the controllable flywheel switch.
  • the execution of the total summation NAND gate thus corresponds to the freewheel output 66 of FIG. 1.
  • the freewheel signal 110 corresponds to the output of the total summation NAND gate 190 and, in the embodiment shown in FIG. 1, forms the drive signal of the controllable freewheeling switch 70, which is controlled by the output 66 of the circuit 60.
  • the monitoring circuit of Figure 2 further comprises a control circuit for the controllable short-circuit switch which detects the occurrence of an overvoltage fault or a phase overcurrent error and closes the controllable short-circuit switch 80 via a control signal when at least one of these faults occurs, when the freewheel signal returns to the inactive state.
  • the freewheel signal returns to the inactive state, if it was previously triggered by the occurrence of one of the errors and the time interval provided by the monitoring circuit, which is provided by the monitoring circuit and is triggered by the occurrence of a phase overcurrent error or an override error, expires or has expired.
  • the monitoring circuit of FIG. 2 preferably also comprises a separate voltage supply circuit for the NAND gates used and the first and second comparators 130, 170, which smoothes a voltage originating from a vehicle electrical system by means of smoothing devices and / or regulating devices and frees them from voltage peaks by means of filtering.
  • the signal output of the NAND gate 190 is connected to a power amplifier and / or a level converter to directly control the controllable free-wheeling switch and / or the controllable shorting switch.
  • the reset input 155 may not be directly connected to a reset signal, but via another RC network, preferably with corresponding comparator or NAND gate circuitry, for applying a predetermined delay to a reset signal delivered to the monitoring circuit.
  • the monitoring circuit of FIG. 2 may be provided with an enable signal input which resets the entire circuit to a state which prevails during normal operation.
  • the circuit shown in Figure 2 can be implemented by means of discrete components or integrated circuits.
  • a programmable component for example an ASIC, an FPGA or a microcontroller, can implement the method according to the invention or the monitoring circuit according to the invention.
  • the monitoring circuit according to the invention preferably comprises a non-volatile memory in which software modules are provided which implement at least part of the monitoring circuit.
  • a digital conversion instead of an RC element, a digital equivalent in the form of a counter and a clock generator can be used with which time intervals can be determined.
  • the time intervals can be determined by counting discrete events, energy transfer events, such as occur in charging capacitances or generating a magnetic field in a coil, and by passing digital (or analog) signals through discrete elements, such as logic gates, with their Total Chain Delay determines the time interval.
  • the current or voltage sensors used can also comprise analog-to-digital converters for interference-free transmission, which transmit the detected current or voltage signal in to convert a digital value.
  • the Stromg. Voltage sensors also include active amplifiers that amplify the detected signal and thus change transmission interference.
  • the output signals of the current or voltage sensors can be analog and at least partially linear, digital in the form of binary values or in the form of pulse widths or frequency-modulated signals.
  • the current or voltage sensors may also be identical to the current or voltage sensors of the electric machine, which are used for the exact control of the machine during normal operation. Furthermore, instead of the sensors, the current or voltage signals can also originate from the output stage, which drive the electric motor.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

Procédé de traitement de panne sur le moteur électrique d'un entraînement hybride consistant à détecter si au moins un paramètre de fonctionnement du moteur électrique est supérieur à un seuil de paramètre de fonctionnement correspondant; à libérer une borne d'alimentation du moteur électrique sur un intervalle de temps affecté au paramètre de fonctionnement, après lequel on détecte si le ou les paramètres de fonctionnement du moteur électrique sont supérieurs au seuil de paramètre de fonctionnement correspondant; et à court-circuiter la borne d'alimentation à la masse à la fin de l'intervalle de temps. L'invention concerne également un circuit de contrôle destiné à la mise en oeuvre du procédé, prévu pour un moteur électrique d'un entraînement électrique et comportant une sortie de marche à vide, une sortie de court-circuit, un circuit de temporisateur et au moins une entrée de détection pour au moins un paramètre de fonctionnement. Le circuit de contrôle est conçu pour émettre un signal de marche à vide au moyen de la sortie de marche à vide en cas de dépassement d'un seuil affecté au ou aux paramètres de fonctionnement, et le circuit de temporisateur prévoit un intervalle de temps pour chaque paramètre de fonctionnement, commençant avec le dépassement du seuil, la sortie de court-circuit émettant un signal de court-circuit à la fin de cet intervalle de temps.
PCT/EP2008/053982 2007-05-02 2008-04-03 Traitement de panne sur le moteur électrique d'un entraînement hybride Ceased WO2008135327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710020509 DE102007020509A1 (de) 2007-05-02 2007-05-02 Fehlerbehandlung bei einer elektrischen Maschine eines Hybridantriebes
DE102007020509.2 2007-05-02

Publications (1)

Publication Number Publication Date
WO2008135327A1 true WO2008135327A1 (fr) 2008-11-13

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WO (1) WO2008135327A1 (fr)

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EP2418115A2 (fr) 2010-08-11 2012-02-15 Robert Bosch GmbH Procédé et système de fonctionnement d'une machine électrique commandée par un onduleur dans un véhicule automobile en cas d'erreur
CN102612446A (zh) * 2009-09-24 2012-07-25 罗伯特·博世有限公司 用于电机的逆变器和用于运行电机用的逆变器的方法

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DE102010003595A1 (de) 2010-04-01 2011-10-06 Robert Bosch Gmbh Wechselrichter für eine elektrische Maschine und Verfahren zum Betreiben eines Wechselrichters für eine elektrische Maschine
DE102010031583A1 (de) * 2010-07-20 2012-01-26 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Betrieb einer elektrischen Antriebseinrichtung
US8878542B2 (en) 2011-04-01 2014-11-04 Robert Bosch Gmbh Method and apparatus for dealing with faults in an electrical drive system
DE102011081173A1 (de) * 2011-08-18 2013-02-21 Robert Bosch Gmbh Betriebszustandsschaltung für Wechselrichter und Verfahren zum Einstellen von Betriebszuständen eines Wechselrichters
DE102013213044A1 (de) * 2013-07-04 2015-01-08 Voith Patent Gmbh Permanentmagneterregte Elektromaschine
DE102013020305A1 (de) 2013-12-04 2015-06-11 Daimler Ag Sicherungsvorrichtung für einen Permanentmagnetmotor eines Kraftwagens
DE102013021256A1 (de) 2013-12-14 2015-06-18 Daimler Ag Hochvoltnetz für ein Kraftfahrzeug
DE102013226560A1 (de) * 2013-12-19 2015-06-25 Robert Bosch Gmbh Vorrichtung und Verfahren zum Betreiben einer elektrischen Maschine
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DE102013226577A1 (de) * 2013-12-19 2015-06-25 Robert Bosch Gmbh Vorrichtung und Verfahren zum Betreiben einer elektrischen Maschine
GB2552663B (en) * 2016-08-01 2019-07-24 Protean Electric Ltd A method and controller for controlling an electric motor
DE102016223061A1 (de) * 2016-11-22 2018-05-24 Bayerische Motoren Werke Aktiengesellschaft Antriebseinrichtung für ein Kraftfahrzeug, Verfahren zum Betreiben einer Antriebseinrichtung, sowie Kraftfahrzeug
DE102020215777A1 (de) 2020-12-14 2022-06-15 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Anschlussvorrichtung für ein elektrisches Antriebssystem, elektrisches Antriebssystem und Verfahren zum Betreiben eines elektrischen Antriebssystems
DE102021209683A1 (de) * 2021-09-03 2023-03-09 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben eines elektrischen Antriebssystems, Computerprogrammprodukt, Datenträger und elektrisches Antriebssystem
DE102021129144B4 (de) * 2021-11-09 2025-01-16 Audi Aktiengesellschaft Verfahren zum Betreiben einer elektrischen Schaltungsanordnung, elektrische Schaltung und Kraftfahrzeug
DE102023108038A1 (de) * 2023-03-29 2024-10-02 Bayerische Motoren Werke Aktiengesellschaft Steuereinheit und Verfahren zur Sicherung eines Antriebssystems mit einer elektrischen Maschine

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CN102612446A (zh) * 2009-09-24 2012-07-25 罗伯特·博世有限公司 用于电机的逆变器和用于运行电机用的逆变器的方法
US9676277B2 (en) 2009-09-24 2017-06-13 Robert Bosch Gmbh Inverter for an electric machine and method for operating an inverter for an electric machine
EP2418115A2 (fr) 2010-08-11 2012-02-15 Robert Bosch GmbH Procédé et système de fonctionnement d'une machine électrique commandée par un onduleur dans un véhicule automobile en cas d'erreur
DE102010039190A1 (de) 2010-08-11 2012-02-16 Robert Bosch Gmbh Verfahren und System zum Betreiben einer durch einen Wechselrichter angesteuerten elektrischen Maschine in einem Kraftfahrzeug im Fehlerfall

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