EP0460985A1 - Einrichtung zur Überwachung des Verschlusses der TÀ¼ren eines Autos - Google Patents

Einrichtung zur Überwachung des Verschlusses der TÀ¼ren eines Autos Download PDF

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Publication number
EP0460985A1
EP0460985A1 EP91401287A EP91401287A EP0460985A1 EP 0460985 A1 EP0460985 A1 EP 0460985A1 EP 91401287 A EP91401287 A EP 91401287A EP 91401287 A EP91401287 A EP 91401287A EP 0460985 A1 EP0460985 A1 EP 0460985A1
Authority
EP
European Patent Office
Prior art keywords
opening
generator
central unit
circuit
conductors
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
EP91401287A
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English (en)
French (fr)
Other versions
EP0460985B1 (de
Inventor
Pierre Periou
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.)
Inteva Products France SAS
Original Assignee
Rockwell Automotive Body Systems France SA
Rockwell Body and Chassis Systems France
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 Rockwell Automotive Body Systems France SA, Rockwell Body and Chassis Systems France filed Critical Rockwell Automotive Body Systems France SA
Publication of EP0460985A1 publication Critical patent/EP0460985A1/de
Application granted granted Critical
Publication of EP0460985B1 publication Critical patent/EP0460985B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/46—Locking several wings simultaneously
    • E05B77/48—Locking several wings simultaneously by electrical means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5973—Remote control
    • Y10T70/5978—With switch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/60—Systems
    • Y10T70/625—Operation and control
    • Y10T70/65—Central control

Definitions

  • the present invention relates to a device for monitoring the closing of the doors of a motor vehicle. It is intended to monitor the closing state of door locks, the trunk and other protected access devices such as the fuel filler flap, the glove compartment, etc.
  • a closing contact is associated with each of the opening elements to be monitored and, when this opening element is open or not properly closed, this closing contact is actuated and sends a signal to a central unit which is arranged on the dashboard and which comprises visual alarm devices each associated with an opening so that the driver, when the ignition is on, is warned that a door, for example, is not closed properly.
  • This monitoring device requires one line per monitored window to send the aforementioned signal to the central unit; it follows that the latter receives a line for each opening monitored; this line can be two-wire or have only one wire, if the return is by mass. In any case, monitoring the opening state of the doors requires wiring a line between each of the accesses and the central unit which can therefore receive, for example, five or six conductors each corresponding to an opening.
  • the invention therefore aims to create a device for monitoring the closing of the doors of a motor vehicle which makes it possible to significantly reduce the number of conductors necessary for the connection between the doors and the central monitoring unit and also to reduce the length. total of the conductors used.
  • the subject of the invention is a device for monitoring the closing of the doors of a motor vehicle, in which each opening is provided with a closing contact which is connected to a central unit, characterized in that the central unit is connected to all the openings by a single line common to two conductors, in that the central unit comprises at least one periodic signal generator connected to said two conductors, in that each opening comprises a passive receiver circuit tuned to the frequency of the periodic signal supplied by said generator of the central unit, said passive circuit being connected in series with the closing contact of said opening and in that said device further comprises means for signaling a closing fault sensitive to variations in the signal created by the generator when the corresponding closing contact is actuated.
  • the central unit comprises a single generator and the passive circuit consists of a vibrator; this vibrator can be timed and, in this case, the central unit includes a visual alarm device.
  • each opening comprises a series resonant circuit connected between said conductors, the resonant frequency of said resonant circuit being specific for each opening, in that the central unit comprises plug circuits connected to a of said conductors, each plug circuit being associated with an opening and being tuned to the resonance frequency of the resonant circuit of said opening, and in that the central unit comprises a generator supplying signals at the different resonance frequencies of the resonant circuit-circuit pairs aforementioned plug.
  • the two front doors 2 are equipped with a key lock 7 which is equipped with electrical contacts supplying electrical signals to the central control unit 1 with a view to "unlocking", “locking” or “locking” "openings.
  • Figure 2 is the electrical diagram of the circuit contained in an opening such as a front door.
  • This circuit essentially comprises three conductors 11, 12, 13 each connected to one of the conductors of line 8 (control by the key can take place between 11 and 12 for example).
  • Each opening comprises an electric actuator with triple effect, for example two DC motors M1 and M2; the motor M1 controls the “locking” or the “unlocking” of the opening and the motor M2 controls the “super locking” or the “unlocking” of the lock.
  • the door In the "deadlocking" position, the door cannot be opened using the mechanical control elements of the door, lever or pushbutton, but only by an electric control provided by the introduction of a coded key in the lock 7 or by a remote command received by the detector 6.
  • the motors M1 and M2 are permanently connected between the three conductors 11, 12 and 13.
  • the motor M1 is connected between the conductor 13 and the conductor 12.
  • the second motor M2 is also connected between the conductors 13 and 12.
  • a diode D1 separates the terminals arriving from the motors M1 and M2, the cathode of D1 is connected to M2.
  • the terminal of M2 which is connected to the conductor 12 is extended on the conductor 11 by a diode D2, the cathode of which is connected to this conductor 11.
  • the control is carried out between the conductors 11 and 12. From the conductor 11 a set of three electronic components has been connected, Zener diodes 14 connected in series in the example shown. From of the anodes of these Zener, three terminals are defined for a switch.
  • the other conductor 12 is connected to the common terminal of a three-position switch 15 by means of a diode 16, the cathode of which is connected to the conductor 12.
  • the role of the diode 16 is to avoid the passage of 'a power current through the Zener diodes if a key request occurs during a power transfer for a "deadlock".
  • This three-position switch is in fact constituted by the coded key introduced into the latch 7; the three possible positions of the lock key 15 correspond to the aforementioned three states, "unlocking", “locking” and “deadlocking". This switch closes a circuit through one or more Zener diodes as required.
  • a resonant circuit consisting of a coil 17 and a capacitor 18 is connected between the two conductors 11 and 12 with the interposition of a contact 19 corresponding to the open door contactor CPO and which is closed when the door is open or poorly closed.
  • the electrical circuit integrated in the other openings such as the rear doors or the tailgate does not include the elements 14 to 16 corresponding to the key lock 7.
  • Figure 3 shows in a simplified way the circuit of the central control unit.
  • Line 8 is connected to three inputs 21, 22 and 23 which correspond respectively to conductors 11, 12 and 13 of each of the openings. Each of these inputs is connected to the contact of a control relay respectively B1, B2 and B3 which are shown in the idle state.
  • the coils of relays B1, B2 and B3 are controlled by a microprocessor 20 as will be described in detail below.
  • the terminal 23 which corresponds to the conductor 33 of the line 8 and the terminal 22 which corresponds to the conductor 32 of the line 8 are connected to the negative terminal 24 of the vehicle supply battery.
  • the relays B2 and B3 are activated, in the working position, the terminals 22 and 23 are connected to the positive terminal 25 of the vehicle battery.
  • the terminal 21 which corresponds to the conductor 31 of the line 8 is connected to the negative terminal 24 of the battery. In the rest position, the terminal 21 is connected to a measurement detector 26 which supplies information to the microprocessor 20. This terminal 21 is biased at the positive voltage by a resistor 10 which is connected to the conductor 21 via the rest contact 27 of relay B1 and the working contact of a switch 30 ′ controlled by actuation of the ignition key.
  • the rest contact 27 of the relay B1 can also be connected to an alternating current generator 28 either by means of plug cicuits connected in series or by of a resistance in which case the string of plug circuits can be placed in parallel between 12 and 13, or eliminated.
  • Each of these plug circuits is tuned to the resonant frequency of the resonant circuit 17, 18 of one of the openings.
  • An alarm device, such as an indicator light 29, is connected in parallel to each of the resonant circuits. This indicator can for example be constituted by a light-emitting diode.
  • the activation of the generator 28 is controlled by a signal from the closing of a contact 30 which is closed by the vehicle ignition key and which corresponds to the circuit 5 of FIG. 1.
  • the microprocessor 20 also receives information from the contact 30 on the insertion of the vehicle ignition key. It also receives information via an anti-aggression contact 34 which can be closed by the user when the latter is in the vehicle. Finally, the microprocessor 20 receives an order of "condemnation", “super-lock” or “unlocking” supplied by means of a contact 35 associated with the remote control detector 6.
  • FIG. 4 is a detailed diagram representing the detector circuit 26.
  • the signal from the measurement conductor 31 is sent to three operational amplifiers 41, 42 and 43 which, on the other hand, each receive a reference value adapted to the voltages of the Zener diodes. 14.
  • these reference signals are respectively equal to 2, 4 and 6 Volts.
  • the signal supplied by the first operational amplifier 41 is sent to an AND gate 44 with three inputs, the other two inputs of which receive a positive voltage corresponding to logic state 1.
  • the output of the AND logic gate 44 is sent to a monostable flip-flop 45 whose output provides a first command signal.
  • the output of the second operational amplifier is sent on an AND logic circuit 46 with three inputs; the second input of this circuit receives the output signal from the operational amplifier 43 and the third input of this circuit receives the inverted output signal from the comparator 41, the inversion being produced by an inverting gate 47.
  • the output of this circuit AND logic 46 controls a second monostable flip-flop 48 whose output also provides an order signal.
  • the output of the operational amplifier 43 is sent on an AND logic circuit 49 with three inputs, the other two inputs of which receive respectively the inverted output signal from the operational amplifier 41 and the inverted output signal from the operational amplifier 42 by through an inverting gate 51.
  • the output of the AND logic circuit 49 controls a third monostable flip-flop 52, the output of which also provides an order signal.
  • FIG. 5 is a diagram showing the detail of the generator 28. It essentially consists of four flip-flops 61, 62, 63 and 64 which are connected in series so as to constitute a ring counter;
  • FIG. 6 is a timing diagram representing respectively the clock signal sent on each of the flip-flops and their output Q.
  • the output signal Q of each of the flip-flops controls a transistor 65 which constitutes a switch arranged between the DC voltage source and the supply wire of each periodic signal generator 71, 72, 73 and 74.
  • the output of each of these generators is sent to the conductor 36 of Figure 3 upstream of the plug circuits.
  • the frequencies of the signals supplied by the generators 71 to 74 correspond respectively to the resonance frequencies of each of the resonant circuit assemblies 17, 18 of the door circuit and of the corresponding plug circuit of the central control unit.
  • the voltage read by the detector 26 is the voltage of the battery which is sent from the terminal 25 through the resistor 10.
  • the door key is actuated to obtain the "locking", it is the position corresponding to two diodes 14 in series which is obtained and the two comparators 42 and 43 pass to the logic state "1"; the inverter 51 blocks the AND gate 49 and only the gate 46 passes to the logic state "1", which activates the flip-flop 48 which controls the supply of the coil of the relay B3. It follows that the motor M1 is supplied in the opposite direction to that of the "unlocking". The motor M2 is not activated taking into account the fact that its two terminals are connected to the same positive potential of the power supply and that D1 opposes the passage of current, towards 32.
  • the diodes D1 and D2 make it possible to isolate or select M2 according to the polarities applied to the three conductors, this authorizing it to be put to rest during a simple "condemnation" request where M1 alone is activated.
  • the lowest Zener voltage has priority, which determines a priority in the case of two different simultaneous key requests.
  • it is the request for "deadlock” corresponding to the lowest Zener voltage which has priority over 'the other orders. It is the same for the command of "condemnation” which has priority before a command of "unlocking". This is a choice that can be changed at will. One frees oneself in this way, as well as by protections on the monostable rockers of the emission of two different simultaneous orders.
  • the Zener diodes 14 can be replaced by other electronic components dividing a voltage applied across the two conductors.
  • the microprocessor 20 can also be controlled by the remote control shown diagrammatically by the contact 35 which provides "unlocking” or "condemnation” information to the microprocessor 20.
  • the device according to the invention also comprises an anti-aggression device shown diagrammatically by the contact 34 which is actuated by the occupant of the vehicle when he is inside it and which also transmits order information. "condemnation" to the microprocessor 20.
  • the microprocessor 20 also receives information relating to the vehicle ignition key (contact 30).
  • the information provided by actuation of the vehicle ignition key authorizes actuation of the anti-aggression device and inhibits the remote control.
  • actuation of the vehicle ignition key controls the procedure for monitoring the door contacts by activating the generator 28 quine therefore only works when the ignition key is in the active position. In this position, the positive DC voltage applied to the control conductor 21 which is then subjected to the periodic signals supplied by the generator 28 is eliminated.
  • monitoring is interrupted for a short time by the microprocessor 20 so as to honor the order.
  • the door closing status is monitored using only two conductors, namely conductors 31-32.
  • the generator supplies a series of pulses of different frequencies which correspond respectively to the resonant frequencies of the pairs of resonant circuit-plug circuit of the central control unit and of each door.
  • the current flows through the two conductors 11 and 12, there is a drop in impedance of the resonant circuit at the resonance frequency of the door considered, and it follows that the voltage across the corresponding plug circuit of the central control unit takes a high value, which activates the alarm constituted for example by the light 29 which flashes according to the cyclic frequency of the generator 28.
  • the generator 28 supplies a complex voltage of several equal voltages whose frequencies correspond to the frequencies of the resonant circuits.
  • a summing circuit to send the set of frequencies to the conductor 11.
  • the four signal generators are continuously supplied, the ring counter is no longer used.
  • only a generator with a single frequency is provided in the central control unit and, in each door, the series resonant circuit is replaced by a vibrator operating at the frequency supplied by the generator, the central control unit.
  • This variant makes it possible to limit the size of the dashboard by numerous indicators. It is however possible to provide a single indicator constituting a permanent alarm while the operation of the buzzer is delayed and the audible signal stops after a certain time.
  • a capacitor can be arranged in series with each of the vibrators. With the door closed improperly in the door itself, the attention of the occupants is attracted much faster especially when it comes to rear doors.
  • the plug circuits are eliminated, and the generator 28 permanently sends cyclic trains of periodic waves of different frequencies.
  • These signals pass through a resistor located in series with the generator 28 in the central unit. With the impedance presented by the resonant circuits, this resistor acts as a voltage divider bridge: at its terminal adjoining the conductor 21, the amplitude of each of the signals passing through it is looked at. In the absence of a door that is not closed properly, the amplitude of the signal at the cited terminal is that of the signal emitted by the generator 28. As soon as a door contact 19 closes, this amplitude falls like a voltage divider bridge for the signal at the resonant frequency of the door not closed properly.
  • the series of plug circuits in parallel between the two conductors 21 and 22 in the central unit, that is to say between the output 36 of the generator connected to the conductor 21, and the minus polarity of the battery connected to conductor 22.
  • the generator 28 continuously sends cyclically the periodic wave trains at different frequencies, across a resistor.
  • each plug circuit On reception of its own frequency each plug circuit has a high impedance.
  • the impedance across the terminals of said plug circuit drops, the same goes for the voltage across its terminals. An alarm is triggered as soon as this voltage drop is detected.
  • the invention makes it possible, by using only three connecting conductors forming a bus between the central control unit and each of the opening elements, to centrally control the opening, "locking" and even a “deadlocking" of the doors. and send from each of the doors, the necessary orders supplied by the door key.
  • Another advantage of the invention lies in the fact that only passive elements are housed in the doors, which is important from the point of view of cost and reliability.
  • two of these conductors are sufficient to carry out monitoring of the closing state of all the doors, each time indicating that the door is not closed properly.
  • the invention also applies to openings comprising a double-acting actuator such as openings' without “deadlocking” (luggage compartment, petrol door, etc.).
  • a double-acting actuator such as openings' without “deadlocking” (luggage compartment, petrol door, etc.).
  • the actuator is a reversible motor, it will be permanently connected between two conductors.

Landscapes

  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP91401287A 1990-06-05 1991-05-17 Einrichtung zur Überwachung des Verschlusses der Türen eines Autos Expired - Lifetime EP0460985B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9006936A FR2662733B1 (fr) 1990-06-05 1990-06-05 Dispositif de surveillance de la fermeture des ouvrants d'un vehicule automobile.
FR9006936 1990-06-05

Publications (2)

Publication Number Publication Date
EP0460985A1 true EP0460985A1 (de) 1991-12-11
EP0460985B1 EP0460985B1 (de) 1994-02-16

Family

ID=9397259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401287A Expired - Lifetime EP0460985B1 (de) 1990-06-05 1991-05-17 Einrichtung zur Überwachung des Verschlusses der Türen eines Autos

Country Status (8)

Country Link
US (1) US5250849A (de)
EP (1) EP0460985B1 (de)
JP (1) JPH06317054A (de)
BR (1) BR9102298A (de)
CA (1) CA2043431C (de)
DE (1) DE69101178T2 (de)
ES (1) ES2049533T3 (de)
FR (1) FR2662733B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708027A1 (fr) * 1993-07-20 1995-01-27 Peugeot Système centralisé de verrouillage et de déverrouillage des ouvrants d'un véhicule automobile.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572098A (en) * 1994-07-01 1996-11-05 General Motors Corporation Motor vehicle accessory control with control module having single power terminal
JP2975536B2 (ja) * 1994-08-01 1999-11-10 三井金属鉱業株式会社 車両ドアロック装置の制御方法
USRE38400E1 (en) * 1995-02-06 2004-01-27 Daimlerchrysler Corporation Control function-power operated lift gate
DE19530719A1 (de) * 1995-08-18 1997-02-20 Kiekert Ag Verfahren zum Betrieb einer elektrischen Steuerungsanlage für ein Kraftfahrzeug mit einer Werkstattbetriebsweise
US5755126A (en) * 1995-09-22 1998-05-26 Lanigan; William P. Security system for cargo loading doors
GB2309481A (en) * 1996-01-29 1997-07-30 John Phillip Chevalier Central locking system with electronic control circuitry
FR2778980B1 (fr) * 1998-05-22 2001-04-20 Valeo Securite Habitacle Dispositif electromecanique a detecteurs de position, en particulier pour commande de serrure electrique de vehicule automobile
US6329726B1 (en) 2000-03-03 2001-12-11 Broadband Telcom Power, Inc. Proportional distribution of power from a plurality of power sources
JP3865192B2 (ja) * 2000-03-31 2007-01-10 本田技研工業株式会社 車両用表示装置
US20030052365A1 (en) 2001-09-18 2003-03-20 Samir Chaudhry Structure and fabrication method for capacitors integratible with vertical replacement gate transistors
EP2347932B1 (de) * 2010-01-14 2012-05-09 SMR Patents S.à.r.l. Ausfallerkennung elektrischer Verbraucher in Kraftfahrzeugen
KR101164350B1 (ko) * 2010-08-02 2012-07-10 엘에스산전 주식회사 전기자동차용 충전 스탠드

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923505A1 (de) * 1979-06-09 1980-12-11 Fichtel & Sachs Ag Schliess- und/oder verriegelungseinrichtung fuer fahrzeugtueren

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
US3975708A (en) * 1974-02-27 1976-08-17 T.S.W.S., Inc. Vehicle condition monitoring system
JPS60246966A (ja) * 1984-05-22 1985-12-06 トヨタ自動車株式会社 自動車の盗難検知装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2923505A1 (de) * 1979-06-09 1980-12-11 Fichtel & Sachs Ag Schliess- und/oder verriegelungseinrichtung fuer fahrzeugtueren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708027A1 (fr) * 1993-07-20 1995-01-27 Peugeot Système centralisé de verrouillage et de déverrouillage des ouvrants d'un véhicule automobile.

Also Published As

Publication number Publication date
DE69101178T2 (de) 1994-06-01
FR2662733B1 (fr) 1992-09-11
ES2049533T3 (es) 1994-04-16
JPH06317054A (ja) 1994-11-15
US5250849A (en) 1993-10-05
DE69101178D1 (de) 1994-03-24
BR9102298A (pt) 1992-01-14
EP0460985B1 (de) 1994-02-16
FR2662733A1 (fr) 1991-12-06
CA2043431C (en) 1994-11-08
CA2043431A1 (en) 1991-12-06

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