EP1335086A1 - Kraftfahrzeugschloss - Google Patents

Kraftfahrzeugschloss Download PDF

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Publication number
EP1335086A1
EP1335086A1 EP20030290299 EP03290299A EP1335086A1 EP 1335086 A1 EP1335086 A1 EP 1335086A1 EP 20030290299 EP20030290299 EP 20030290299 EP 03290299 A EP03290299 A EP 03290299A EP 1335086 A1 EP1335086 A1 EP 1335086A1
Authority
EP
European Patent Office
Prior art keywords
lock
opening
mechanical
lever
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20030290299
Other languages
English (en)
French (fr)
Inventor
Jean-Marc Belmond
Frédéric Burkat
Sylvain Chonavel
Hwa Chu Yi
Pascal De Vries
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
ArvinMeritor Light Vehicle Systems France SA
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 ArvinMeritor Light Vehicle Systems France SA filed Critical ArvinMeritor Light Vehicle Systems France SA
Publication of EP1335086A1 publication Critical patent/EP1335086A1/de
Withdrawn legal-status Critical Current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
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/12—Automatic locking or unlocking at the moment of collision
    • 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
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/30—Functions related to actuation of locks from the passenger compartment of the vehicle allowing opening by means of an inner door handle, even if the door is locked
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/80—Electrical circuits characterised by the power supply; Emergency power operation
    • E05B81/82—Electrical circuits characterised by the power supply; Emergency power operation using batteries other than the vehicle main battery
    • 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
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/26—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety
    • 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
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/28—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/80—Electrical circuits characterised by the power supply; Emergency power operation
    • E05B81/86—Electrical circuits characterised by the power supply; Emergency power operation using capacitors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/01—Mechanical arrangements specially adapted for hands-free locking or unlocking
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1048—Lever
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor

Definitions

  • the invention relates to the field of motor vehicle locks.
  • Such locks allow the opening position to be closed for motor vehicle ; it also makes it possible to unhook the opening by action on a interior or exterior opening control connected to the lock and actuable by an user.
  • a lock is typically mounted on the opening of the vehicle. It has a bolt whose function is to fix a finger with respect to the lock mounted on the vehicle, or on the contrary to release the finger.
  • opening of the lock the action of releasing the finger, which allows the opening of the opening;
  • closing the lock is called closing the lock. lock, which prevents the opening of the door.
  • the bolt is pressed towards its finger closed position when closing the sash, a pawl prohibiting the return of the bolt to its open position and the maintenance of the lock in the closed position when there is no external stress on the lock.
  • the lock is called "super-condemnation” does so, in a lock condemned, to prohibit the opening of the lock by action on the control interior opening.
  • the super-conviction notably prevents the breakage of a vehicle door window allow the vehicle door to be opened from the interior opening control.
  • “De-super-condemnation” is the operation reverse, which restores the opening of the lock when the control is operated interior opening.
  • these operations are conventionally provided using a specific electromechanical actuator.
  • vehicles sold by Ford under the reference 406 year model 2000, or by Audi under the reference A4, model year 2000 use locks of this type.
  • Child safety the function which inhibits the opening of the lock from the interior opening control, whether the lock is locked or no ; this function prevents accidental opening of a door from the inside, especially by children. It is often available for the rear doors of motor vehicles. For a rear door of a motor vehicle, these operations are conventionally carried out using a command button or a electromechanical actuator. Vehicles sold by VW under the Golf reference, model year 2000, or by Renault under the reference Turtle II, model year 2000 offer such a solution.
  • override from the English verb override the function allowing to open the lock by unlocking it at the same time or, in the presence of a security child, unlock the lock by pressing the interior opening control.
  • This function allows in the event of an accident to the rear passenger of a vehicle fitted with a child safety activated to unlock the lock and allow the opening of the door from the outside.
  • EP-A-0 694 644 proposes a lock with an electric vehicle opening automobile.
  • the opening of the lock is ensured electrically by the operation an actuator powered by the vehicle battery.
  • An energy source is planned backup consisting of a backup battery installed in the door to which the lock is associated. In the event of a malfunction of the supplied power supply by the vehicle battery, the lock can be opened thanks to the power supply from the backup battery.
  • This solution first poses a problem with the dimensioning of the motor. opening the lock; indeed the engine must allow not only the opening of the lock under normal conditions of use, but also opening the lock in degraded conditions, for example after an impact. It is estimated that the ratio of force required under degraded conditions to force required under normal conditions is of the order of 3, the force varying typically from 300 N to some 1000 N.
  • the motor and its gearbox are therefore designed to allow opening in degraded conditions, which leads to electrical and mechanical oversizing compared to the need in conditions normal.
  • the dimensioning of the motor also poses a problem for emergency power; this must indeed be capable of supplying the engine the energy required to open under heavy load.
  • the lock installed by Renault on the vehicle sold under the brand didactic 2 presents a bolt activated by an assembly formed by a ratchet and a ratchet named hereafter ratchet assembly.
  • the lock has a lever interior opening lever and exterior opening lever, separate from the lever interior opening.
  • a wedge or movable finger comes between a range of the external opening lever and a range of the pawl assembly.
  • the rotation of the external opening lever causes the ratchet to rotate and opening the lock; conversely, when the wedge does not come between the worn, the rotation of the external opening lever does not cause the rotation of the ratchet and the lock is locked.
  • a second block or movable finger comes come between a range of the interior opening lever and a second lever taken with the ratchet assembly; the second wedge works similarly to the first, its withdrawal ensuring super-conviction or activation of security child and his interposition the super-conviction or the deactivation of security child; the override is ensured when the lock is in the de-super-locked state by a cam controlled by the interior opening lever and whose movement causes the first wedge to be interposed between the surfaces of the opening lever outside and ratchet.
  • a first motor ensures the movement of the first wedge to lock or unlock the lock.
  • the displacement of the first wedge is also mechanically controlled by a lock, the motor does not with no backup power.
  • An emergency button on the edge of the door allows, in the event of a power failure or empty battery, to lock the lock, then close the door to abandon the locked door vehicle.
  • a second motor moves the second wedge to allow the deadlocking / deadlocking or security activation / deactivation child.
  • EP-A-0 589 158 proposes in FIG. 2 a lock, with an actuator electric opening, which acts on the pawl.
  • the actuator is triggered by contacts provided in the exterior and interior opening commands.
  • a lever rotary has a rest position and an active position; the opening actuator electric switch the rotary lever from the rest position to the position active.
  • the rotary lever is mechanically connected by cables to the controls exterior and interior opening. In the rest position, the rotary lever does not act not on the ratchet. In the active position, the rotary lever is adapted to stress the ratchet when mechanically driven from the opening controls indoor and outdoor.
  • An emergency power supply ensures the supply of the actuator in the event of a vehicle battery failure.
  • the lock is a electric opening lock when the electric opening actuator does not act on the ratchet; the mechanical opening through the rotary lever is then disengaged.
  • the opening actuator electric lever the rotary lever to move it into its active position and the lock is open mechanically.
  • this same document proposes that the body of the actuator electric opening is mobile and biased by a spring.
  • Cable system allows, from the external opening command and the opening command interior of axially moving the body of the electric opening actuator to solicit the ratchet.
  • the cable system is only operated when the travel path of the exterior opening control or interior opening control is greater than the stroke necessary to trigger the sensors controlling the opening electric.
  • the lock is an opening lock electrical and mechanical; neither the electric nor the mechanical opening are detachable.
  • EP-A-0 828 049 proposes a lock with a driven coupling element mechanically by cables connected to the interior opening controls and exterior.
  • the coupling element is rotatably mounted on the same axis as the pawl.
  • a coupling slide is movable in translation between a position of coupling and a withdrawal position. In the coupling position, the slide coupling transmits the rotation of the coupling element towards the ratchet. In the withdrawal position, rotation of the coupling element has no effect on the pawl; this ensures the conviction, the child safety and the super-conviction.
  • a auxiliary electric drive drives the coupling element or the pawl; the electric drive is ordered at the start of the control stroke opening.
  • WO-A-01 66889 describes a lock having an electric motor, which is likely to cause an eccentric stopper to rotate through a coupling.
  • a coupling lever makes it possible to engage the coupling, so that the motor drives the eccentric stop; in the declutching position, the motor does not drive the stop eccentrically.
  • the eccentric stop acts on a position lever, which acts on the pawl.
  • the coupling lever is driven by an internal actuation lever and by a lever external actuation, which are respectively driven by the control opening and by the external opening control. Operating normal the lock opens electrically, when the coupling is engaged by action on one of the opening controls, on the corresponding actuation lever and on the coupling lever.
  • An emergency opening function not described in detail, allows direct action of the internal or external actuation lever on the ratchet, in overtravel of the opening controls.
  • the invention therefore provides, in one embodiment, an opening lock electrical and mechanical opening, in which the mechanical opening and the electric openings are each and independently of the other interchangeable and mechanically disengageable.
  • the mechanical opening is disengaged in the unlocked state of the lock under normal conditions of use.
  • action on the mechanical opening controls of the lock is suitable for causing the electric opening of the lock.
  • the electric opening can be engaged by acting on the opening controls mechanical lock.
  • the lock advantageously has an actuator whose actuation ensures the electric opening of the lock, like a powerful electric motor less than 100 W or even less than 80 W.
  • the clutch mechanism includes a emergency actuator, the actuation of which moves the mechanism from the position disengage to clutch position.
  • This emergency actuator is for example a electric motor with an electric power less than or equal to 10 W.
  • a switch can be provided whose state is representative of the actuation lever; triggered by the hold.
  • the invention also provides a vehicle having an opening provided with such a lock or such module.
  • the lock can then have an actuator whose actuation ensures the electrical opening of the lock; the actuator presents a power adapted to the reaction of seals of the sash to be overcome in conditions normal.
  • the invention proposes to provide, in a lock, an electric opening, as well than a mechanical clutch opening.
  • the lock behaves like a purely electric lock ; it therefore has the advantages of such a purely electric lock, in particular in terms of simplifying the management of the various authorization functions and the opening ban mentioned above.
  • the lock is provided with a mechanical opening which can be engaged. used in degraded conditions. Therefore, it is not necessary that the motor electric opening of the lock is dimensioned to allow opening in degraded conditions: it is sufficient that the engine is sized to allow opening under normal conditions; the invention therefore makes it possible to use a motor less powerful than in purely electric solutions of the state of the technical.
  • Figure 1 is a schematic view of a lock according to an embodiment of the invention, in a closed and locked position.
  • the figure shows the bolt 2, which is rotatably mounted about an axis 4.
  • the bolt is biased by a spring in the direction of clockwise, towards its open position.
  • Figure 1 also shows a ratchet 6, as well as a ratchet 8.
  • the ratchet and the ratchet are movable in rotation about an axis 10.
  • the ratchet and the counter-pawl appear more clearly in Figures 3 and 4. They are integral one on the other: the use of two parts is advantageous for constraints of mounting.
  • the rotation of the ratchet 6 and the ratchet 8 around the axis 10, in the counterclockwise, has the effect of allowing rotation in the anticlockwise of bolt 2, and therefore the opening of the lock.
  • the ratchet 6 has a shape substantially circular; it has a first bearing 12 and a second bearing 14. A support on one or the other of these spans makes it possible to rotate the pawl in the direction counterclockwise.
  • the pawl 8 is integral with the pawl 6 of so as to be rotated by the counter-pawl when it rotates in the counterclockwise. It has a finger 16, which comes into contact of the bolt to prevent its movement when the lock is closed and locked, in the position shown in Figure 1. The movement of the finger 16 releases in rotation of the bolt, as shown in figures 4 or 6.
  • the ratchet and the ratchet are biased by a spring, not shown, towards the closed position and conviction shown in Figure 1.
  • FIG. 1 also shows a lever 18 for manual or mechanical opening of the door.
  • the lever 18 is mounted in rotation about the axis 10 of the pawl; he is connected by an external opening cable or rod 20 to an opening control exterior not shown. It is connected by a cable or opening rod 22 inside an interior opening control, not shown. actuation of the exterior (respectively interior) opening control causes, by through the cable 20 (respectively 22) a rotation of the lever 18 around the second axis 10, counterclockwise.
  • Leverage 18 also has a range 24 for driving the ratchet 6 when the mechanical opening of the lock is engaged, as explained below in reference to FIGS. 5 and 6.
  • the lever 18 also has a slot 26, the function will appear in the following description.
  • a spring not shown, recalls the lever 18 towards its closed position shown in Figure 1, in the direction of Clockwise
  • Figure 1 shows under reference 28 an electric opening motor of the lock.
  • the motor 28 drives in translation along the vertical axis of Figure 1 a drive arm 30.
  • the motor is electrically powered by the circuit main vehicle electrical; it is sized to allow the opening of the lock and door under normal operating conditions.
  • a DC power motor typical 40 Watts electric (for a joint reaction under normal conditions) and no-load speed of the order of 12,500 rpm.
  • the lock has a wedge 32 for opening authorization.
  • This wedge 32 is mounted at the end of an arm 34.
  • the arm has a tenon 36, which engages in the light 26 of the lever.
  • a spring 38 biases the arm 34 towards the left in Figure 1.
  • the pin 36 is pressed against the left end of the light 26, under the effect of the bias of the spring 38; the arm 34 and wedge 32 are then brought to the right by the lever and separated from the first bearing 12 of the pawl and of the drive arm 30.
  • the lever 18 rotates around axis 10 anti-clockwise, as shown in Figure 3.
  • the spring 38 biases the arm 34 to the left, and the wedge 32 is positioned between the first span 12 of the locking pawl and drive arm 30.
  • the wedge authorizes the triggering of the excitation of the motor 28 by coming to close a contact ; its position between the arm 30 and the first bearing 12 of the pawl allows the opening of the door by excitation of the motor 28.
  • the cylindrical or rounded shape of the wedge 32 facilitates the release of the wedge under the effect of the lever return spring 18, in the case where the arm 30 would be locked in the position shown in Figure 3 or 4.
  • the release of the wedge prevents in this case the lock from being locked in a position opened.
  • FIG. 1 finally shows the elements of the clutch mechanism of mechanical opening of the lock.
  • This mechanism includes an arm 40, which is rotatably mounted around a third axis 42.
  • the movement of the arm 40 around axis 42 is controlled by an emergency motor 44 operating under very low charge.
  • the motor makes it possible to rotate the arm 40 in one direction or the other, for the reasons explained below.
  • On the arm 40 is mounted a clutch finger mechanical 46.
  • the emergency motor 44 causes the arm 40 to rotate in counterclockwise, the end 48 of finger 46 comes interpose between the bearing surface 24 of the lever 18 and the second bearing surface 14 of the pawl.
  • the reference 50 designates a member for guiding the end 48 of the finger 46.
  • the finger 46 is rotatably mounted on the arm 40, so as to allow its end 48 to turn around the second axis 10 at the same time as the lever and the ratchet.
  • a first contact is provided on the exterior opening control and is activated when the user manipulates this command.
  • a second contact is actuated by the opening authorization wedge 32, when it is interposed between the arm 30 and the first bearing 12 of the pawl.
  • Door contact open presents two states representative of the open or closed state of the door.
  • FIG. 2 shows the movement of the lever, in the event of action on the exterior opening control (respectively interior).
  • Cable or rod 20 (respectively 22) transmits the movement of the opening command to the lever, which rotates around the second axis 10, as represented by the arrow 60 (respectively 62).
  • the authorization block opening 32 is driven to the left of Figure 2, as shown by the arrow 64; it comes between the arm 30 and the first bearing 12 of the pawl. At the end of its travel, it actuates the second contact.
  • FIG. 3 shows the movement of the arm 30 under the action of the motor 28.
  • the lever 18 is shown behind the pawl and the counter pawl.
  • Activation of the second contact by the wedge 32 causes the excitation of the motor 28, which drives the arm 30 towards the wedge 32 and the first bearing of the ratchet, as represented by the arrow 66.
  • the pawl and the pawl are rotated around the second shaft 10, counterclockwise; this rotational movement is shown in Figure 3 by arrow 68.
  • Figure 4 shows the end of the opening movement of the lock; the ratchet and the ratchet rotate as symbolized by the arrow 68, and release in rotation the bolt 2. Under the action of the joint reaction force to which the door is subjected, it turns counterclockwise, as symbolized by arrow 70 and releases the closing finger mounted on the vehicle. The door opens.
  • the contact placed in the exterior opening control allows trigger user identification, for a contactless lock.
  • the position of this contact in the external opening control also makes it possible to trigger this identification as soon as the command is activated. Compared to a solution in which user identification would be triggered by the second contact, we saves mechanical identification time for movement from the external control to the shim 32.
  • the contact actuated by the shim 32 is enough to control the motor 28.
  • the contact actuated by the shim 32 is enough to control the motor 28.
  • the motor 28 for electrically opening the lock is simply sized to allow opening of the lock within normal operating conditions.
  • the motor has an electrical power of the order of 40 watts electric for a reaction of 300N seals in normal use, or more generally, a electrical power less than 80 or even 100 W for a joint reaction superior in normal use.
  • the motor of a lock purely electrical of the kind described in EP-A-0 694 664 must have an electrical power of about 170 watts to ensure the opening of the lock, even in degraded conditions.
  • the joint reaction mentioned here is the force exerted by the joints on the opening, which opposes the closing of the opening. It is measured at the level of finger mounted on the vehicle, and corresponds to the force exerted by the lock on this finger to keep the door in the closed position.
  • This joint reaction is typically from 300 to 700 N depending on the vehicle, under normal conditions of use.
  • normal conditions of use a state of the vehicle (or more precisely of the opening and its entourage) in the absence of any degradation and corresponding to the nominal conditions.
  • the degradations compared to these normal conditions of use result from deformations of the opening or vehicle, for example following impacts.
  • the joint reaction force is typically three times the nominal value, and takes values of 1,000 to 2,100 N.
  • the power value of the motor is chosen according to the reaction force of the seals. As stated more high, electrical power can vary in the range of 40 to 80 or 100 watts electric when the joint reaction force varies within a range of 300 to 700 N.
  • the power is adapted to the nominal joint reaction force and is preferably calculated for a joint reaction force slightly greater than the force nominal, for example 10 to 20% above the nominal force. So it is not necessary to use a motor with a power of 100 watts for a force of reaction of 300 N joints.
  • Figures 5 and 6 show views of the lock of Figure 1, showing the movement of the different parts of the lock during the mechanical opening of the lock.
  • This mechanical opening is typically used in operation degraded, in the event of failure of one of the elements ensuring electrical opening, in the event of the vehicle's electrical supply, or in the event of an impact increasing the force required to open beyond the force that the motor can exert 28.
  • Figure 5 shows a view of the lock after powering the motor emergency 44 to engage the mechanical opening of the lock; as the figure, the triggering of the emergency motor 44 causes the rotation of the arm 40 around axis 42, counterclockwise as symbolized in Figure 5 by arrow 72. Due to this rotation, the clutch finger mechanical moves towards the lever 18 and the counter-pawl 6. The presence of the member guide 50 helps the end 48 of the finger to come between the range 24 of the lever 18 and the second bearing 14 of the pawl. In the position of the Figure 5, the mechanical opening of the lock is engaged, insofar as actuation of the exterior or interior opening control causes the opening of the lock, independently of the motor 28, as explained in reference to figure 6.
  • the motor 44 is simply dimensioned to allow the rotation of the arm 40 and movement of the finger 46; therefore, this engine can be sized for low load; we can typically use for motor 44 a DC motor of typical power 10 Watts electric and speed at vacuum of the order of 4000 to 6000 rpm.
  • Power here means the simple product the setpoint voltage by the intensity of the motor at start-up; this value is not not representative of the average power consumed by the engine (the ratio between the energy consumed by the motor during the rotation of the arm 40 and the duration of this rotation). In practice, the average power consumed by the motor is of the order of 1 W.
  • the motor has low power and is not subject that at low load it is possible to provide backup power compact and inexpensive; you can use a simple battery, a battery, a supercapacitor, or other, providing a voltage of the order of 0 to 6 V.
  • a simple battery, a battery, a supercapacitor, or other providing a voltage of the order of 0 to 6 V.
  • Such a emergency power can be accommodated in the vehicle door.
  • the mechanical opening clutch simply requires that the emergency motor 44 drives the arm 40 in rotation in the direction of arrow 72. A one-way motor would therefore suffice to engage the mechanical opening, the arm 40 can then be returned by a spring to the declutching position of the opening mechanical. It is however advantageous to provide a double backup motor 44 sense, without the arm 40 being biased by a return spring.
  • Figure 6 shows a view of the lock during a mechanical opening.
  • a action on the interior opening control or on the opening control outside causes the lever 18 to rotate. Due to the presence of the end 48 of the finger between the bearing surface 24 of the lever 18 and the second bearing surface 14 of the counter-pawl, the rotation of the lever 18 causes the rotation of the counter-pawl 6 and the opening of the bolt; the movement of the pawl assembly and the bolt is similar to that described above and is not detailed again.
  • Arrows 74 and 76 are shown in Figure 6 representative of the rotational movement of the pawl assembly 6-8 and the bolt 2.
  • the arrows 78 and 80 representative of the rotation of the lever 18 under the action of the exterior or interior opening control, which causes the rotation of the ratchet assembly.
  • Mechanical opening involves transmitting from the order opening towards the lever the force necessary for the rotation of the pawl assembly. This force is greater than that transmitted by the control to the lever in a normal operation illustrated in Figure 2. This does not preclude the use for links between the controls and the lever of low efficiency systems: mechanical opening is only used in degraded mode. It is then acceptable more force is required to open the door.
  • the locking or unlocking of the lock can be assured of purely software. It is enough to condemn the lock not to release the motor 28, even when the contact of the shim 32 is switched. Unlocking of the lock is carried out by authorizing the triggering of the motor by the contact of the down.
  • a lock is provided, on a front door for example, it is not the lock must be mechanically linked to the lock: you can simply provide that the lock actuates a switch, the change of state of which is used to initiate conviction or unlocking.
  • actuation of the opening control interior and exterior opening control provides security child and a software override.
  • Child safety consists of inhibiting triggering of the motor 28 when only the interior opening control is actuated.
  • the override can also be provided by software.
  • the lock of Figure 1 therefore provides the various functions of authorization and prohibition of opening mentioned above.
  • the lock In degraded mode, the lock operates as shown in Figure 6, after clutch of the emergency mechanical opening as shown in Figure 5. We may enter degraded mode, for example for the following reasons.
  • transition to degraded mode can simply result from the observation that actuation of the interior or exterior opening control does not cause opening the lock and unhooking the door on which the lock is mounted. For a door, this absence of stalling of the opening is detectable therefore what is an open door contact expected: switching of the shim contact 32 without subsequent switching of the open door contact means that the lever 18 has been rotated by the interior or exterior opening control, without the door does not open. We can then engage the mechanical emergency opening, so that on the next attempt, the door opens mechanically.
  • This passage in degraded mode can be caused by a power failure of the motor 28, an opening force of the lock greater than that which the motor can provide 28 or a failure of the engine 28 itself.
  • switching can be used of the shim contact 32 to obtain the mechanical emergency re-engagement in the event of electrical failure, following a locking command triggered since the interior by means known per se (interior button for example).
  • vehicle safety equipment such as a airbag (air bag) or an anti-lock system (ABS).
  • the transition to degraded mode can also result from monitoring of emergency power, as explained above. This avoids that a locking the lock prohibited from opening the door in the event of an impact or breakdown main vehicle power.
  • the lock described in the figures uses a single clutch to the mechanical opening, which acts both on the interior opening control and on the external opening control. This is based on the observation that in mode degraded - in an emergency situation - it is not a problem to allow opening from exterior and interior opening controls. This finding allows simplify the means used for the mechanical clutch of the lock.
  • the reaction of the opening command in normal mode, is insensitive to the reaction of the seals of the opening; the force that the user exerts on the command is the sum of the force required to move the command to against the stress of its spring and the force necessary for the rotation of the lever 18. This sum of forces is independent of the force necessary to make turn the pawl assembly 6-8 and open the lock.
  • the force exerted by the user on the interior or exterior opening command can be of the order of 10 N. degraded mode, strength is more important - which is not critical. Strength in this case can be of the order of 80 N.
  • the electric opening of the lock may be engaged or disengaged, mechanically.
  • the electric opening - the triggering of the electric motor 28 - has the effect of opening the lock; in the disengaged state, the triggering of the motor has no effect on the opening of the lock.
  • the opening authorization block ensures the clutch or the disengagement of the electric opening actuator 28. This is shown in the figure by the switch 53 between the electric opening actuator 28 and the mechanical base of the lock. The figure shows in thin lines that the action on the opening command inside or outside has the effect of engaging the electric opening of the lock; at the idle state, the electric opening is always disengaged.
  • the springs symbolically represented in the figure indicate elastic safety in the event of motor lock 28: mechanical opening remains possible even if the motor is blocked.
  • the figure shows in broken lines the software commands.
  • the opening of the lock from the outside is software controlled when the command external opening is actuated - which has the effect of moving the wedge opening authorization to engage the electric opening of the lock - and that the sensors detect an opening request.
  • This opening request can result from the action on the exterior opening control, as explained more high; it is also possible, as shown in the figure, to provide redundancy with the sensor 52.
  • the locking of the lock from the outside can be controlled from detector 52.
  • the opening of the lock from the interior opening control is also software controlled, when the interior opening control is activated - which has the effect of moving the opening authorization block to engage the the electric opening of the lock - and that the sensor (s) detect a request opening by actuation of the interior opening control.
  • the child safety function is implemented so software, preventing opening despite the activation of child safety.
  • the override function is also a software function.
  • the opening authorization block is not essential. As explained above, it provides protection against accidental opening in case of self-priming of the engine and allows to continue use the mechanical controls of the lock when the engine is blocked in the open position. However, we could do without these functions and do not provide an opening authorization block.
  • the clutch mechanical lock In the closed position of the lock and in the unlocked state, the clutch mechanical lock is disengaged.
  • the mechanical links between the interior opening control and pawl 8 as well as the mechanical links between the external opening command and the pawl are interrupted. These links mechanical participate in the condemnation, insofar as their declutching or removal is necessary to lock the mechanical opening of the lock.
  • the lock is a purely lock electric and not an electrically assisted opening lock; so we avoid that the stroke of the controls triggers the electric opening then causes mechanical opening at the end of the stroke. Even if the user abruptly activates the interior opening command or the exterior opening command, the end of the stroke cannot interfere with engine operation.
  • the lock described with reference to the figures provides a solution to this problem. of diversity.
  • the lock allows to use for connections with the exterior and interior opening controls of the systems low yield, longer than the shortest distance between the lock and control.
  • the functions of authorization and prohibition of opening can be software, without it being it is necessary that the lock has special mechanical elements, in particular for child safety or override; similarly, the presence of a lock on a door does not require any special mechanical part on the lock. It is so the same lock can be used for the front and rear doors.
  • the lock provides a usable module for the doors front and rear, on different vehicles. If we converse symmetrical locks for left and right doors, just provide two modules to equip all vehicles in a range. The lock is therefore an answer to the problem of diversity.
  • FIGS. 8 to 11 show an example of another lock.
  • This lock is similar to that of FIGS. 1 to 6; however, instead of only providing a clutch unique for exterior and interior opening commands, a link is used mechanical for the interior opening control and an electrical connection for the external opening control.
  • Figure 8 shows a schematic view of the lock in a closed and super-locked position.
  • the elements of the lock which are similar to those in Figure 1 have the same references and are not described again. We therefore recognize the bolt 2, the lever 18, the cable or rod opening 22, the counter-pawl 6, the pawl 8, the opening motor electric with its drive arm 82, the arm 40, the motor 44, the finger clutch 46 and the guide member 50.
  • the lock of Figure 8 does not have opening authorization block with arm and tenon. So the arm 82 of the motor 28 relates directly to the first bearing 12 of the counter-pawl 6 when the motor 28 is actuated.
  • the shape of the drive arm 82 of motor 28 is slightly different in FIG. 8, compared with FIG. 1, of the absence of the opening authorization hold; more precisely, the arm 82 has a dimension, along its direction of movement, substantially equal to the sum of the dimensions of the arm 30 and the shim 32; this makes it possible not to modify the stroke of motor 28 to ensure opening.
  • the lock has no cable or external opening rod 20.
  • the lever 18 is identical to that of FIGS. 1 to 6, but we understands that we could do without the light and the part used to receive the external opening cable.
  • FIG. 9 shows, for this state of the lock, the movement of the parts of the lock when trying to open from the interior opening control; the lever 18 is rotated about the axis 10 by pulling the cable 22, as shown in the figure by arrow 84.
  • the range 24 of the lever approaches the second bearing of the ratchet 6. Due to the position of the clutch finger 46, the rotation of the lever 18 is not transmitted to the ratchet. Action on the interior opening control does not therefore cause the mechanical opening of the lock, which is disengaged. In a super-convicted state or with child safety, the electric opening of the lock is also not triggered, so that the attempt to open from the interior opening command has no effect on opening the lock.
  • Figure 10 shows a view of the lock of Figure 8 in a position closed de-super-condemned; the bolt 2 is in the same position as in FIG. 8.
  • the clutch finger 46 is in the low position, so that its end 48 is between the spans 14 and 24.
  • Figure 11 is a view of the lock, showing the movement of the different parts during mechanical opening from the interior opening control, from the state shown in Figure 10. The outline of all of the the pieces, for clarity.
  • Action on the interior opening control causes the lever 18 to rotate anti-clockwise, as symbolized by the arrow 84.
  • the bearing 24 of the lever 18 pushes the end 48 of the clutch finger 46, which urges the second bearing of the ratchet 6.
  • the counter-pawl 6 and the pawl 8 rotate counter-clockwise a watch, around axis 10; this rotation is symbolized in the figure by the arrow 88.
  • the rotation of the pawl and the counter-pawl causes, as explained in reference to figures 4 or 5, the rotation of the bolt 2 around the axis 4, symbolized on the is shown by arrow 90.
  • the opening is a purely mechanical opening, without the motor 28 is not triggered.
  • Figure 12 is a diagram of the operation of the lock of Figures 8 to 11, in the example where the actuation of the interior opening control causes an electric opening.
  • the actuator is shown in the figure electric opening 100 - the motor 28 and its arm 82 in the example - as well as the mechanical base 102 of the lock - the pawl 8 associated with the pawl 6 in The example.
  • the figure again shows the detector 52, the opening command 54, the interior opening control 56, the override control 58 and the actuator 59 for disengaging the mechanical links.
  • the opening of the lock from the exterior opening control 54 is electric and is triggered by the motor 28, so that the arm drive 82 causes the ratchet 6 to rotate. There is no provision for cable or rod to the lever. In this way, it is not necessary to provide on the vehicle door an exterior opening control or a lock. We can if necessary provide redundancy of power supply, sensor or software for secure the opening of the lock with an external remote control.
  • the locking and unlocking the lock are purely operations software, which does not involve any mechanical element. The risk of self-opening is not managed as in the example of figures 1 to 6 by an electric opening clutch and disengageable.
  • a sensor can be provided in the opening command external, so as to detect the actuation of the external opening control (if it exists).
  • the electric opening is then software controlled when the sensor 52 and the sensor of the exterior opening control indicate both a request to open the lock.
  • the figure therefore shows a broken line between on the one hand the sensor 52 and the actuator 100 and on the other hand between the control opening 54 and the actuator 100.
  • the position of the finger 46 is also irrelevant.
  • the opening of the lock from the inside is a mechanical opening.
  • finger 46 In the condemned, super-condemned or child safety state, finger 46 is in the position ascent of FIG. 8; an action on the interior opening control moves the lever 18, but has no effect on the pawl and the counter-pawl.
  • these states correspond to an opening of the switch 104 by the declutching actuator 59, so that the mechanical opening from the interior opening control is disengaged.
  • the finger 46 is in the low position of Figure 10; in the diagram in FIG. 12, this corresponds to closing the switch 104, so that engage the mechanical opening of the lock.
  • the actuation of the command opening 56 acts on the mechanical base 102 to cause opening of the lock.
  • the lock is therefore a lock with purely electric external opening, purely internal opening mechanical, with disengageable mechanical links for super-condemnation or for child safety.
  • Locking the lock is a software operation, just like unlocking.
  • the super-locking of the lock is obtained by mounting the finger 46, just like child safety. These functions are therefore ensured by the declutching of the interior mechanical opening.
  • the override is a software operation, which does not involve movement of the finger 46.
  • the lock of Figures 8 to 11 allows reduce the diversity problem and limit the need for help in the door.
  • the lock of Figures 8 to 11 also simplifies the door structure, insofar as it does not involve mechanical links between the exterior opening control and the lock. We could also using other sensors than the sensor of the exterior opening control described in For example, do without the exterior opening command completely.
  • the finger 46 is located between the ranges 14 and 24 in the rest position. This avoids having to plan in the door an emergency power supply for the motor 44. In fact, if the finger 46 in the position rest is in the high position, it is preferable to have in the vehicle door a emergency power supply - battery, capacity or other - likely to allow, in in the event of an accident, a clutch of mechanical links. Conversely, if finger 46 is is at rest in the low position, it is possible to super-lock the lock or provide child safety when the vehicle is started, without planning emergency power; to do this, using the vehicle battery, reassemble finger 46. If finger 46 is always left in the low position on the door driver - in other words if the door is not locked driver - there is always a door that can be opened from the interior opening control, even in the event of an accident.
  • Another alternative is to provide an electrically assisted opening from the interior opening control.
  • finger 46 when the lock is unlocked, in the absence of a super-conviction or child safety, finger 46 is in the low position as shown in figure 10.
  • An action on the control of internal opening causes the lever to move and triggers opening by engine.
  • This solution has the disadvantages of a mechanical opening assisted, in particular the risks during a sudden actuation of the command interior opening. It also avoids having to provide backup power in the door and allows you to use only a 44 engine of very low power to operate finger 46.
  • the invention is not limited to the embodiments described in as an example.
  • the shapes of the different parts ensuring the opening electric or mechanical lock - ratchet, lever, etc. - may vary ; the lever 18 could thus be a part mounted in translation, although such a part climb to translation is not covered by a strict definition of the word "lever".
  • the emergency circuit, controlling the activation of the emergency motor 44 be connected not only to the emergency power supply, the emergency motor and the main circuit of the vehicle, but also to these three switches. So the opening mechanical can be engaged on detection of a situation degraded by the circuit main vehicle, an order being transmitted to the circuit controlling the engine of help.
  • the mechanical opening can also be engaged on autonomous detection of the backup circuit, from the three switches: for example, in the event of a engine 28, the emergency circuit can trigger the clutch to open mechanical of the lock, even if the main supply of the vehicle is ensured.

Landscapes

  • Lock And Its Accessories (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
EP20030290299 2002-02-12 2003-02-06 Kraftfahrzeugschloss Withdrawn EP1335086A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0201699A FR2835867B1 (fr) 2002-02-12 2002-02-12 Serrure de vehicule automobile
FR0201699 2002-02-12

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EP1335086A1 true EP1335086A1 (de) 2003-08-13

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EP (2) EP1335086A1 (de)
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CN106996228A (zh) * 2015-10-16 2017-08-01 麦格纳覆盖件有限公司 电门闩锁

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FR2835867A1 (fr) 2003-08-15
FR2835867B1 (fr) 2004-08-20
US20030178859A1 (en) 2003-09-25
JP2003269029A (ja) 2003-09-25
EP1335087A1 (de) 2003-08-13
US20030164616A1 (en) 2003-09-04
JP2003262064A (ja) 2003-09-19
US6883839B2 (en) 2005-04-26

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