EP3646364A1 - Elektrisches system zur steuerung eines funktionselements und system zum antrieb der räder eines kraftfahrzeugs - Google Patents

Elektrisches system zur steuerung eines funktionselements und system zum antrieb der räder eines kraftfahrzeugs

Info

Publication number
EP3646364A1
EP3646364A1 EP18737665.2A EP18737665A EP3646364A1 EP 3646364 A1 EP3646364 A1 EP 3646364A1 EP 18737665 A EP18737665 A EP 18737665A EP 3646364 A1 EP3646364 A1 EP 3646364A1
Authority
EP
European Patent Office
Prior art keywords
controllable switch
electrical
electrical system
integrated circuit
wheels
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.)
Granted
Application number
EP18737665.2A
Other languages
English (en)
French (fr)
Other versions
EP3646364B1 (de
Inventor
Amélie THIONVILLE
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.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur SAS
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 Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP3646364A1 publication Critical patent/EP3646364A1/de
Application granted granted Critical
Publication of EP3646364B1 publication Critical patent/EP3646364B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current

Definitions

  • the present invention relates to the field of controlling a functional member in a secure manner.
  • an electrical device comprising:
  • control device designed to control the first controllable switch in order to control the functional element.
  • control device is furthermore designed to detect a failure of the electrical device and, in case of detection of a failure, to control the first switch at the opening with the effect of disconnecting the functional member from the electrical source. .
  • the object of the invention is to propose an electrical system for controlling a more secure functional element than the one presented above.
  • an electrical system for controlling a functional organ comprising:
  • an electrical device comprising:
  • control device designed to control the first controllable switch in order to control the functional element
  • the electrical system being characterized in that it further comprises:
  • control device placed between the functional unit and one of the power supply terminals, and in that the control device is furthermore designed to detect a failure of the electrical device and, in case of detection of a failure, open the second controllable switch to disable the functional organ.
  • the functional unit can be disconnected from the electrical source even in the event of failure of the first controllable switch.
  • the functional member is placed between the first controllable switch and the second controllable switch.
  • the first controllable switch is placed between the functional member and the power supply terminal intended to be connected to the negative terminal of the electrical source.
  • the second controllable switch is placed between the functional unit and the power supply terminal intended to be connected to the positive terminal of the electrical source.
  • the first controllable switch is a normally closed switch.
  • the second controllable switch is a normally open switch.
  • the functional member is adapted to be alternately connected and disconnected from the electrical source in a certain duty cycle, equal to the time of disconnection with respect to the time of a period, and the functional member is selectively designed take a first state when the duty cycle is below a predefined threshold and a second state when the duty cycle is greater than the predefined threshold.
  • the electrical device further comprises a resistor placed between the first controllable switch and one of the power supply terminals, and the control device is adapted to detect a failure of the electrical device from a current flowing through the resistance and / or voltage across the resistor.
  • the controller includes a first integrated circuit configured to control the first controllable switch and a second integrated circuit configured to control the second controllable switch.
  • the first integrated circuit is configured to monitor the second integrated circuit to detect a failure of the second integrated circuit
  • the second integrated circuit is configured to monitor the first integrated circuit to detect a failure of the first integrated circuit
  • the functional member is an electromechanical actuator designed to control a clutch.
  • a wheel drive system of a motor vehicle comprising: - an electric motor designed to drive the wheels,
  • the single figure schematically shows a rear wheel drive system of a motor vehicle embodying the invention.
  • the drive system 100 firstly comprises the rear wheels 102 of the motor vehicle.
  • the drive system 100 further includes an electric motor 104 adapted to drive the rear wheels 102.
  • the drive system 100 further includes a clutch 106 adapted to be activated to connect the electric motor 104 to the rear wheels 102 and to be disabled to disconnect the electric motor 104 from the rear wheels 102.
  • the drive system 100 further comprises an electrical source 108.
  • the electrical source 108 is a DC voltage source comprising for example a battery.
  • the drive system 100 further comprises an inverter 110 designed to provide AC voltages 104 to the electric motor from the electrical source 108.
  • the drive system 100 further comprises a control device 112 of the clutch 106.
  • the control device 112 firstly comprises a first power supply terminal 114 connected to a negative terminal of the electrical source 108 (this negative terminal forming an electrical ground) and a second power supply terminal 116 connected to a terminal positive of the electrical source 108.
  • the control device 112 further comprises a functional member 118 intended to be powered by the electrical source 108.
  • the functional member is an electromechanical actuator 118 designed to selectively assume a state of activation of the clutch. 106 and a state of deactivation of the clutch 106.
  • the electromechanical actuator 118 comprises a solenoid and a movable rod extending into the solenoid. The solenoid is adapted to selectively move the shaft between an engagement position of the clutch 106 (corresponding to the activation state of the electromagnetic actuator 118) and a disabling position of the clutch 106 (corresponding to the state of deactivation of the electromagnetic actuator 118).
  • the electromechanical actuator 118 is designed to be alternately connected and disconnected from the electrical source 108 in a certain duty cycle, equal to the time when it is disconnected with respect to the time of a period.
  • the duty cycle is below a threshold SRC
  • the electromechanical actuator 118 is in the state of deactivation of the clutch 106.
  • the duty cycle is greater than the threshold SRC, the electromechanical actuator 118 is in the state d activation and thus activates the clutch 106.
  • the control device 112 further comprises a first controllable switch 120 placed between the electromechanical actuator 118 and one of the power supply terminals, in the example described first. power supply terminal 114.
  • the first controllable switch 120 is a normally closed controllable switch, that is to say that in the absence of control it behaves as a closed switch. It comprises for example an N channel MOSFET.
  • the control device 112 further comprises a second controllable switch 122 placed between the electromechanical actuator 118 and one of the power supply terminals, in the example described the second power supply terminal 116.
  • the second controllable switch 122 is a normally open controllable switch, that is to say that in the absence of control it behaves as an open switch. It comprises for example a P-channel MOSFET.
  • the control device 112 further comprises a resistor 124 placed between the first controllable switch 120 and the first power supply terminal 114.
  • the control device 112 further comprises a measuring device 126 designed to measure a current I flowing through the resistor 124 and a voltage U across the resistor 124.
  • the drive system 100 further includes a controller 128 of the controllable switches 120, 122 and the inverter 110.
  • the controller 128 includes a first integrated circuit 130 and a second integrated circuit 132.
  • the first integrated circuit 130 is a microcontroller and the second integrated circuit 132 is an FPGA.
  • the microcontroller 130 is designed to control the first controllable switch 120 according to a desired duty cycle in order to drive the electromechanical actuator 118.
  • the microcontroller controls the first controllable switch 120 by supplying it with a zero gate-source voltage for open the first controllable switch 120 and non-zero to close it.
  • the microcontroller 130 is furthermore designed to control the inverter 110.
  • the microcontroller is designed to shift the duty cycle from 0 to 1, or vice versa, in a switching time of, for example, 1 to 3 seconds, preferably 2 seconds.
  • the microcontroller 130 is first designed to be in an operational state.
  • the microcontroller 130 In this operational state, when it receives an activation command C of the clutch 106, the microcontroller 130 is designed to control the first switch 120 so as to shift the duty cycle above the threshold SRC (at 1 in the example described) to switch the electromechanical actuator 118 to the activation state of the clutch 106. In addition, the microcontroller 130 controls the inverter 110 so that the electric motor 104 provides a non-zero torque.
  • the microcontroller 130 when it receives a clutch deactivation command C 106, the microcontroller 130 is designed to control the first switch 120 so as to shift the lower duty cycle below the SRC threshold (at 0 in the example described) to switch the electromechanical actuator 118 to the deactivated state of the clutch 106.
  • the microcontroller 130 controls the inverter 110 so that the electric motor 104 provides a zero torque.
  • the microcontroller 130 is designed to receive a speed V of the vehicle and to compare it to a predefined threshold, for example 130 km / h.
  • the microcontroller 130 is designed to control the first switch 120 so as to shift the duty cycle below the threshold SRC (at 0 in the example described) to pass the In addition, the microcontroller 130 is designed to control the inverter 110 so that the electric motor 104 provides a zero torque. In addition, the microcontroller 130 is designed to ignore the activation commands C of the clutch 106. Indeed, the drive of the rear wheels 102 is dangerous at high speed. If the speed V of the vehicle is below the predefined threshold, the microcontroller 130 is designed to enter the operational state.
  • the microcontroller 130 is further designed to receive the voltage U and the current I while the first controllable switch 120 is closed and to compare them respectively to a threshold Su and a threshold Si.
  • the microcontroller 130 is designed to detect a failure of the control device 112 and to control the first switch 120 so as to change the duty cycle below the threshold SRC (at 0 in the example described) to switch the electromechanical actuator 118 to the deactivated state of the clutch 106.
  • the microcontroller 130 is designed to send the FPGA 132 a request for opening the second controllable switch 122 and controlling the inverter 110 so that the electric machine 106 provides a zero torque.
  • the microcontroller 130 is designed to ignore the clutch activation commands C 106, as well as the speed V of the vehicle. Thus, the clutch 106 can not be reactivated.
  • the microcontroller 130 is further designed to monitor the FPGA 132 to detect a failure thereof. For example, the microcontroller 130 sends requests to the FPGA 132 at different times in order to obtain a response. In the absence of response or if the response is not compliant, the microcontroller 130 deduces a failure of the FPGA 132.
  • the microcontroller 130 detects a failure of the FPGA 132, the microcontroller 130 is designed to control the first controllable switch 120 so as to shift the duty cycle below the threshold SRC (at 0 in the example described) to pass the In addition, the microcontroller 130 controls the inverter 110 so that the electric machine 104 provides a zero torque. In addition, the microcontroller 130 ignores the activation commands of the clutch 106 and the speed V of the vehicle. Thus, the clutch 106 can not be reactivated.
  • the FPGA 132 is designed to control the second controllable switch 122 by providing, in the example described, a gate-source voltage, zero to open the second controllable switch 122 and non-zero to close it.
  • the FPGA 132 is further adapted to receive the current I and the voltage U while the first controllable switch 120 is closed and to compare them respectively to the threshold Su and the threshold Si.
  • the FPGA 132 is designed to detect a failure of the control device 112 and to control the second controllable switch 122 at the opening to pass the electromechanical actuator 118 in the deactivated state of the clutch 106.
  • the FPGA 132 is further designed to monitor the microcontroller 130 to detect a failure thereof. For example, the FPGA 132 sends at various times requests to the microcontroller 130 to obtain a response. In the absence of a response or if the response is not compliant, the FPGA 132 deduces a failure of the microcontroller 130.
  • the FPGA 132 If the FPGA 132 detects a failure of the microcontroller 130, the FPGA 132 controls the second switch 122 at the opening to switch the actuator 118 to the disabling state of the clutch 106. In addition, the FPGA 132 controls the inverter 110 so that the electric machine 104 provides a zero torque.
  • the FPGA 132 receives a request to open the second controllable switch 122 from the microcontroller 130, the FPGA 132 is adapted to control the second switch 122 at the opening to switch the actuator 118 to the deactivation state of the clutch 106.
  • the wheels could be front wheels of the motor vehicle.
  • the functional member 118 could be another functional member that an electromechanical actuator designed to control a clutch.

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
EP18737665.2A 2017-06-27 2018-06-06 Elektrisches system zur steuerung eines funktionselements und system zum antrieb der räder eines kraftfahrzeugs Active EP3646364B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1755858A FR3068181B1 (fr) 2017-06-27 2017-06-27 Systeme electrique de pilotage d'un organe fonctionnel et systeme d'entrainement de roues d'un vehicule automobile
PCT/FR2018/051308 WO2019002711A1 (fr) 2017-06-27 2018-06-06 Système électrique de pilotage d'un organe fonctionnel et système d'entrainement de roues d'un véhicule automobile

Publications (2)

Publication Number Publication Date
EP3646364A1 true EP3646364A1 (de) 2020-05-06
EP3646364B1 EP3646364B1 (de) 2024-05-01

Family

ID=59811554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18737665.2A Active EP3646364B1 (de) 2017-06-27 2018-06-06 Elektrisches system zur steuerung eines funktionselements und system zum antrieb der räder eines kraftfahrzeugs

Country Status (4)

Country Link
EP (1) EP3646364B1 (de)
CN (1) CN110870034B (de)
FR (1) FR3068181B1 (de)
WO (1) WO2019002711A1 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5481023B2 (ja) * 2007-10-25 2014-04-23 株式会社小松製作所 作業車両および作業車両の制御方法
DE102008061564A1 (de) * 2008-01-02 2009-07-09 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungsaktor und Verfahren zu dessen Steuerung
US8148848B2 (en) * 2008-01-24 2012-04-03 Honeywell International, Inc. Solid state power controller (SSPC) used as bus tie breaker in electrical power distribution systems
US8861162B2 (en) * 2010-03-09 2014-10-14 Honeywell International Inc. High power solid state power controller (SSPC) solution for primary power distribution applications
US8344544B2 (en) * 2010-05-19 2013-01-01 Hamilton Sundstrand Corporation Bus-tie SSPCS for DC power distribution system
JP5724928B2 (ja) * 2012-03-29 2015-05-27 アイシン・エィ・ダブリュ株式会社 電磁弁駆動回路の制御装置および異常診断方法
US9197056B2 (en) * 2012-06-11 2015-11-24 Honeywell International Inc. Solid state power control system for aircraft high voltage DC power distribution
US9660446B2 (en) * 2013-10-04 2017-05-23 Ge Aviation Systems Llc Power distribution system for an aircraft
CN103522995B (zh) * 2013-10-30 2015-11-18 江苏理工学院 车顶转向随动式空气阻力缓速装置
US9929685B2 (en) * 2015-06-10 2018-03-27 Infineon Technologies Ag Safety circuit and brush holder for preventing fault conditions in an alternator

Also Published As

Publication number Publication date
CN110870034A (zh) 2020-03-06
FR3068181B1 (fr) 2019-11-29
FR3068181A1 (fr) 2018-12-28
EP3646364B1 (de) 2024-05-01
WO2019002711A1 (fr) 2019-01-03
CN110870034B (zh) 2022-11-01

Similar Documents

Publication Publication Date Title
EP2794340B1 (de) Vorrichtung zum verbinden/lösen einer ladung für eine energiespeichereinheit in einem kraftfahrzeug
EP2890990A1 (de) Vorrichtung zum nachweis und zur messung eines isolationsfehlers
FR2900517A1 (fr) Appareil de commande de moteur
FR2711601A1 (fr) Dispositif de commande pour le système de direction assistée commandé par moteur d'un véhicule à moteur.
EP2861450B1 (de) Verfahren und system zur desaktivierung und aktivierung eines steuermoduls eines elektrischen fahrzeuges
JP5059907B2 (ja) エンジン始動装置
WO2014050060A1 (ja) リレー駆動装置
JPH09501817A (ja) 車両駆動ユニット出力設定要素の操作装置
FR3068181B1 (fr) Systeme electrique de pilotage d'un organe fonctionnel et systeme d'entrainement de roues d'un vehicule automobile
FR2908247A1 (fr) Dispositif de commande d'alternateur pour vehicule
FR2870986A1 (fr) Dispositif de commande de relais pour appareil electrique en courant continu
EP0982825B1 (de) Drehzahlregelvorrichtung für einen elektrischen Motor und Vorrichtung zum Schleudern mit einer solchen Vorrichtung
FR3026574A1 (fr) Dispositif de commande d'un regulateur d'un alternateur d'un vehicule automobile et alternateur comprenant le regulateur correspondant
FR2802492A1 (fr) Systeme de direction a assistance electrique
FR2904469A1 (fr) Dispositif de commande electronique d'un sectionneur
US8072729B1 (en) Battery-spark and reverse polarity protection method and circuit for safely connecting a trolling motor to a power source
EP3195474B1 (de) Elektrische schaltung zur steuerung einer elektrischen vorrichtung mit hoher integrität
FR3004030A1 (fr) Dispositif de commande de moteur et appareil de direction assistee electrique comprenant le dispositif de commande de moteur
WO2016037685A1 (fr) Procédé d'aide au démarrage d'un moteur thermique d'un véhicule automobile
FR3047853B1 (fr) Systeme de commande d'un onduleur d'un moteur electrique, systeme de moteur comportant un tel systeme de commande
FR2976026A1 (fr) Demarreur de vehicule automobile
EP1964142B1 (de) Vorrichtung zur lieferung von elektrischer energie an ein elektrisches elmenet mithilfe eines elektromagnetischen relais
FR3000625A1 (fr) Dispositif d'alimentation electrique d'un moteur electrique d'entrainement d'un element mobile de portail et procede de fonctionnement d'un tel dispositif
EP2771970B1 (de) Schnell trennbare steuerung
EP0723327B1 (de) Gesicherte Stromversorgungsvorrichtung für die Nebenschaltungen eines Fahrzeuges insbesondere für beheizbare Windschutzscheibe unter zeitweiligem Überspannungszustand

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191218

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20211007

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231123

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018068893

Country of ref document: DE