CN102985272A

CN102985272A - Method for operating a closing device, and a closing device

Info

Publication number: CN102985272A
Application number: CN2011800251536A
Authority: CN
Inventors: M·克尔维尔; H·普吕泽尔; D·劳克
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2010-05-20
Filing date: 2011-05-03
Publication date: 2013-03-20
Anticipated expiration: 2031-05-03
Also published as: DE102010029163A1; CN102985272B; EP2571704A1; WO2011144437A1

Abstract

The invention relates to a method for operating a closing device, wherein a closing element (2) can be moved in a first direction with the aid of a drive motor (4), wherein a coupling device (11) is provided for coupling the drive motor (4) mechanically to the closing element (2), wherein the coupling device (11) has a wrap spring unit, in order to bring about a self-locking action if no moment acts on the drive side on the coupling device (11) in an opening direction which is opposite to the closing direction, wherein the mechanical coupling between the drive motor (4) and the closing element (2) has a play; having the following steps: operation of the drive motor (4) to move the closing element (2) in the first direction; and if the movement of the closing element (2) in the first direction is to be stopped, operation of the drive motor (4) in order to move the closing element (2) in a second direction which is opposite to the first direction.

Description

The method and the hull closures that are used for the operation hull closures

Technical field

The present invention relates to latching, for example automatic glass regulator in the automobile and roof hull closures, they are equipped with the clamping defencive function, and wherein control can be adopted sleep mode.

Background technology

Latching has a closing element (glass for vehicle window, slide roof) usually, and it passes through direct motor drive with electric means.Electrical motor is driven by control unit, and the latter and executive component coupling are in order to depend on the drive control motor and the direction of predesignating it of executive component.

For the hull closures in the automobile, for example electrodynamic type glass regulator and electrodynamic type slide roof, must guarantee not exist in the closing process that the direction of stop edge (window frame of automobile, roof recess) is moved at closing element the part of any object or health, it may damaged or damage.For avoiding this situation, in control unit, realize a kind of algorithm, the jam of its identification closing element during closing process.If recognize jam, then impeding shutdown process is perhaps carried out counter-rotating, and wherein closing element is carried out at least in short-term and opened motion.

Be generally and reduce the quiescent current in the control unit and realize a kind of so-called sleep mode, wherein, as long as electrical motor is cut off, control unit does not act on basically, and on-off element does not move on direction or the closing direction and executive component is not carried out the driving of continuation opening.This is used for reducing as far as possible quiescent current draws, until control unit enters normal operating mode by wake-up signal.

Usually provide sealing to closing element to the stop edge that it travels, in order to improve the opposing when closing element will arrive stop edge in closing process.Therefore providing a kind of function in the glass regulator automatically especially, with this function in the time will realizing closing fully-this moment closing element sail in the sealing at stop edge place-releasing clamping defencive function.Clamp as far as possible narrow that zone that defencive function is disengaged will select in it, so that there is not the danger of the reality that object or body part enter.Clamp defencive function by in this zone, removing, avoid when closing element sails in the sealing, detecting mistakenly jam, that is to say counter-rotating thereby the corresponding reaction of conduct for example triggers the sense of motion commutation of closing element.

Need to know the position of closing element for this function.The position of closing element generally can be according to the location positioning of the electrical motor that drives closing element.

The power that may occur is in the situation of closing element effect, and this causes the passive motion of electrical motor.When control unit is in sleep pattern in the situation that the closing element in this external trigger moves, so that be in inactive state for the location recognition of closing element, then therefore may cause in control unit, store corresponding to the judgement that makes a mistake between the current actual position of the position data of the position of the closing element that detects at last and closing element.Especially carry out removing prematurely before it will cause arriving stop edge in the situation of closing movement clamping defencive function at closing element after the false judgment that is caused by the outside, thereby do not exist in the field any actv. to clamp protection.In other words, clamp in this case defencive function and be disengaged, although shutdown system has a space between closing element and stop edge, it is enough wide, so that the part of object or health can be involved in and they are damaged or damage.

In system early, by using automatic step-by-step, the worm gearing that for example has respective design drives closing element and avoids it.Can avoid thus power effect on closing element to cause the passive motion of electrical motor.

Yet automatic step-by-step has inefficient shortcoming, and apparent for the mechanical couplings between electrical motor and the closing element provides other measure, adjusts electrical motor to avoid doing the time spent at closing element.

Therefore task of the present invention is, provide a kind of method for the operation hull closures and a kind of hull closures for, use them to reduce the clamped danger of part of object or health.

Summary of the invention

The hull closures and the shutdown system that are used for driving the method for shutdown system and passing through basis claim arranged side by side that this task is passed through according to claim 1 solve.

Favourable structure illustrates in the dependent claims in addition.

According to first aspect, provide a kind of method for the operation hull closures.Hull closures comprises a closing element, and it can move at closing direction on first direction in face of a stop edge especially by a driving motor by control unit control.Control unit can place normal operating mode, and wherein position data is as the current station acquisition of closing element; With can place sleep mode, executing location data acquisition not wherein.A coupling device is provided in addition, be used for mechanical couplings driving motor and closing element, wherein coupling device has one around spring unit, be used for when not having moment to cause self-locking at closing direction as the time spent on coupling device at drive side, wherein being coupling between driving motor and the closing element of machinery around spring unit has the gap.The method comprises the following steps:

-operation driving motor is used for making the closing element motion at closing direction; With

-when the motion of closing element on closing direction will stop, the operation driving motor moved closing element on against the second direction of first direction especially opening direction.

A kind of conception of said method is, for driver element by in the hull closures that is coupled around spring unit and closing element, finish rear drive unit in short-term or be the adjustment travel counter-rotating of a weak point in the motion of closing element, in order to insert a kind of state around spring unit, be disengaged in second direction for outgoing side moment at the direct-coupling between driver element and the closing element under this state.Because what be used for providing braking or locking action needs little adjusting around spring unit, therefore can guarantee that the power effect on closing element can not cause driving driving motor immediately.Can reduce to minimum to following risk thus: i.e. effect by the outside makes the driving motor motion, and can produce actual position thus and the position data that in control convenience, provides between the mistake adjustment.

The motion of driving motor on second direction carried out with a kind of like this degree in addition, and it is less than or equal to the gap around spring unit.In other words, because have the gap around spring unit, so select so counter-rotating is preferred, so that output shaft is positioned at a position around the inside, gap of spring unit, it is located substantially on the centre of the moving region that occupies by the actuator around spring unit.

The motion of driving motor on second direction can be carried out with a kind of like this degree especially at least, so that the motion of the actuator of the outgoing side that moment by the outgoing side effect triggers is carried out in the zone around the gap of spring unit, this is enough to cause self-locking, so that the obstructed side driver of overdriving of driving motor is by the outgoing side driver drives.

The motion of driving motor on second direction can be carried out with a kind of like this degree at least in addition, namely from first angle and second angle and produce, wherein the first angle is corresponding to such angle, it is the angle that the drive side actuator must pass through when released around spring under applying the situation of drive torque, wherein the second angle is corresponding to such angle, the angle of namely moving in the situation by the moment of external action of the power of a maximum or a maximum around spring.

Can stipulate according to another kind of embodiment, when the manipulation operations element finishes, should the phase down element in the motion of closing direction.

In addition can, during less than the interval predesignated, remove clamping defencive function facing to the edge of stop edge and the interval between the stop edge when one of position data explanation closing element, this function automatically shuts down driving motor when detecting jam.

According to another aspect, provide a kind of hull closures, particularly automatic glass regulator system.This hull closures comprises:

-closing element, it can travel at closing direction on first direction in face of stop edge especially by driving motor,

-control unit is used for the operation driving motor; Wherein control unit can place normal operating mode, and wherein position data is as the current station acquisition of closing element; With can place sleep mode, executing location data acquisition not wherein,

-coupling device, be used for mechanical couplings driving motor and closing element, wherein coupling device has one around spring unit, be used for when not having moment to cause self-locking at closing direction as the time spent on coupling device at drive side, wherein being coupling between driving motor and the closing element of machinery around spring unit has the gap.

In addition, control unit is configured to:

-operation driving motor is used for making the closing element motion at first direction; With

-when the motion of closing element on closing direction will stop, making the driving motor motion in the second direction against first direction.

According to another aspect, a kind of computer program that comprises program code is provided, when when data processing equipment is carried out this program code, this equipment is carried out said method.

Description of drawings

The below explains preferred embodiment of the present invention with reference to the accompanying drawings in detail.In the accompanying drawing:

Fig. 1 represents the scheme drawing of the automatic glass regulator in the automobile; With

Fig. 2 a represents the scheme drawing around the cross-sectional plane of spring under the different conditions to 2c.

The specific embodiment

Fig. 1 represents the automatic glass regulator system 1 of the side window of automobile, and wherein wind glass 2 can travel in window frame 5 by closing organ 3 movingly as closing element.Wind glass 2 is driven by electrical motor 4 by closing organ 3, closing organ 3 comprise a suitable driving device 12 and one as coupling device 11 around spring unit.In the present embodiment wind glass 2 upwards (on the direction of arrow) travel, in order to close vehicle window, wherein wind glass 2 arrives off position at stop edge 6 places of window frame 5.

Electrical motor 4 depends on that by control unit 7 manipulation of executive component 8 is triggered, and wind glass 2 is moved in the direction of predesignating.For example wind glass 2 can be in the situation of manipulation operations element 8 make progress-that is to say on closing direction-moves, so that wind glass 2 execution closing movements for cutting out the rotation of vehicle window by electrical motor 4.Similarly wind glass 2 can be in the situation of manipulation operations element 8 for open the backward rotation of vehicle window by electrical motor 4 downwards-that is to say opening on the direction-motion, so that motion is opened in wind glass 2 execution.

Can for example activate automatic operation scheme by the manipulation of time length of regulation in the mode of regulation by manipulation operations element 8 in addition, under this mode, remove (end) rear motion that continues the wind glass 2 of prior regulation at manipulation operations element 8, until executive component 8 is handled again or until wind glass 2 arrives a stop dog position in fully open position or complete off position.Self-evident, replace the manipulation operations element 8 also can for example CAM, LIN carry out the triggering of hull closures by data bus.

A position transduser 9 is provided in addition electrical motor 4 or closing organ 3, the relative change in location of the motion that it can detection window glass 2.Particularly position transduser 9 can be exported pulse corresponding to rotational motion when electrical motor 4 rotates, and this pulse is increment or decrement accumulative total at the location counter of control unit 7 interior realizations.This pulse for example can be provided by Hall element, GMR sensor or similar sensor, perhaps also can derive from the surge of current of current of comuntation.Each count value of location counter represents the position data of the position of wind glass 2 so.

Optional scheme is in addition, replace position transduser 9 at electrical motor 4 or go back the current curve of the motor current of split-phase motor 4 at closing organ 3, thereby in order to detect the relative change in location that the relative position of electrical motor 4 changes the position of detection window glass 2, and provide position data by the accumulative total change in location.

At a kind of clamping defencive function of control unit 7 interior realizations, it detects jam according to the electrical motor characteristic quantity.When object or body part wind glass 2 facing to the window edge of stop edge and window frame 5 between and closing movement by wind glass 2 on object or body part, have jam during the application of force.Can one or more sensor 10 be set at electrical motor 4 for this reason, make it possible to detect the variation of motor current or the variation of motor speed.Can be defined as driving the rising of wind glass 2 needed drive torques according to the variation of motor current or motor speed, this can be used as jam and explains.

In addition for reducing quiescent current consumption, can place a kind of so-called sleep mode to control unit 7, when wind glass 2 not driven (that is to say that electrical motor 4 needn't trigger by control unit 7) and executive component 8 are not handled, always can take this sleep mode.Control unit 7 acts on and all main functions all are disengaged hardly under sleep mode, so that do not carry out especially the renewal of location counter.Therefore do not exist the current position data of the position of wind glass 2 to use.Manipulation operations element 8 and/or exist other wake-up condition such as situation about connecting in igniting etc. under control unit 7 be triggered, make it leave sleep mode and change and corresponding triggering electrical motor 4 makes vehicle window close or open to normal operating mode.

Closing organ 3 passes through around spring unit 11 coupling window glass 2 and electrical motors 4.Around spring unit 11 comprise one spiral around spring, can realize a kind of self-retention with it.In addition one coupled to each other by the output shaft of driving device and closing element coupling by electric motor driven axle drive shaft and one, make output shaft by axle drive shaft by driver drives.The gap is provided here, and this gap at first must be passed through before axle drive shaft drives output shaft in the opposite direction when sense of motion overturns.

Under static state still do not loaded by moment at drive side at outgoing side around spring unit.There is not in this case moment around the spring unit effect.Then lean against one around spring and outside around spring or on the brake cylinder of interior setting and by friction, cause self-retention.This self-retention locking output shaft.If driving motor is triggered, then by drive side to around the spring transmission torque.The power of regulation for example in the situation of the power of 0.5Nm around spring with to a certain degree compressed so that it does not rely on brake cylinder, thereby removes the locking of output shaft.Now can be by drive side to the outgoing side transmission torque.If motor drive is stopped, the load that then can not rely on outgoing side around spring unclamps and again leans against on the brake cylinder.

Principle around spring unit 11 is, the locking to the motion of output shaft is provided, and the moment that drive side is only worked as in this locking just is disengaged to do the time spent around spring unit 11.The moment of drive side causes the Geometrical change around spring, so that unlock.This locking action does not pass through only to remove from the moment of outgoing side effect.

Fig. 2 a schematically illustrates by the viewgraph of cross-section around spring unit to 2c, they according to actuator by the axle drive shaft, by output shaft with around the other different state of positional representation of spring.

A kind of state of expression among Fig. 2 a, its representative ring is positioned at arbitrarily static position around spring unit 11.See the actuator 21 of a drive side, it is connected with axle drive shaft or its part; Also see the actuator 22 of an outgoing side, it is connected with output shaft or its

part.Actuator

21,22 represents respectively that in the embodiment shown the part of a circular segment of axle drive shaft or output shaft prolongs.In the different end around spring 23 driver element 24 is set between the backstop side of the actuator 21 of drive side, it can be driven by the actuator 21 of drive side.Around the following realization of the effect of spring unit 11, (independent of direction ground) carries out the tensioning around spring by drive shaft the time, for example around the constriction of spring, so that be disengaged by the locking that leans against on the brake cylinder around the previous effect of spring.The locking that moves through of output shaft is prevented from so that only in the situation of the moment by the axle drive shaft effect tensioning around spring cause Geometrical change, it self is unclamped from brake cylinder.

Actuator

21,22 can contact in the situation of correspondingly rotating each other at axle, so that the torque that provides at axle drive shaft can be transferred on the

output shaft.Actuator

21,22 is so constructed, so that they provide a gap, that is to say angle that the part of the circular segment of axle drive shaft and output shaft prolongs and less than 360 °, preferably less than 270 °.This gap is corresponding to 90 ° angular range in the embodiment shown.When rotation direction is overturn, can before opposite direction transmission, at first must pass through this gap between the

actuator

21,22 in corresponding torque.This gap between the

actuator

21,22 is used for, and makes around spring 23 to unlock before output shaft is applied to axle drive shaft in moment when the drive shaft turns.

Fig. 2 b represents the situation that electrical motor 4 provides drive torque that actuator 21 inhours are rotated.Drive side actuator 21 at first drives around the driver element 24 of spring and unlocks thus in the situation of the regional A by the gap.Then drive side actuator 21 drive outgoing side actuators 22 and driver output axle and with the wind glass 2 of its coupling.

In the embodiment shown, axle drive shaft causes closing of wind glass 2 in anti-clockwise rotation.If the position that from Fig. 2 b, represents-lean against on the outgoing side actuator 22 in this position side driver 21-rotation direction of upset axle drive shaft, then must at first overcome the regional B in gap, thereafter drive side actuator 21 leans against on the corresponding opposite side of outgoing side actuator 22, in order to transmit in the clockwise direction corresponding torque.

If driving motor 4 that is to say at anti-clockwise movement at closing direction, then stop rear drive side driver 21 at electrical motor 4 and keep contacting with outgoing side actuator 22.If at wind glass 2 an external force effect is arranged under this state, then the axle drive shaft counter-rotating of electrical motor 4 can be directly transmitted and be caused in this pulse when the lifting glass for vehicle window system is in sleep mode to axle drive shaft.This counter-rotating of axle drive shaft can be corresponding to several millimeters glass stroke of wind glass 2.When control unit 7 was in the sleep mode, the current position of there wind glass 2 did not change.After reawaking control unit 7 from sleep mode, control unit 7 is thought glass position corresponding to the position of last measurement, and therefore makes wind glass take the position higher than the position at its actual place.

Especially in the situation that continues closing window glass 2, for sailing the zone that the clamping protection in the sealing arrangement is disengaged into, wind glass 2 is exaggerated an adjustment travel, and this adjustment travel causes by applying manual power at wind glass 2.Can clamp prematurely thus the releasing of defencive function, this can't help movable clamping defencive function and stops and damage or damage so that the part of object or health can arrive between wind glass 2 and the window frame 5.

Opening on the wind glass in the situation of the application of force on the direction (for example clashing at wind glass), when outgoing side actuator 22 leaned on mutually with the drive side actuator, the power pulse can be transmitted to the latter by the former.This can cause the axle drive shaft counter-rotating.For avoiding this effect, now suggestion, as at Fig. 2 a to shown in the 2c, behind the closing movement of wind glass 2, carry out a counter-rotating in short-term of electrical motor 4, by this counter-rotating drive side actuator 21 is turned back in the gap that provides between

actuator

21 and 22.

Return motion is carried out with such degree, its from the first angle and the second angle and produce.The first angle is corresponding to such angle, i.e. the angle that must pass through under applying the situation of drive torque until when released around spring of drive side actuator 21.When stopping at every turn, driving motor also again goes back to about the first angle around spring, so that the locking output shaft.The second angle is corresponding to such angle, namely around the angle of from the situation of the moment of external action in moving of spring in the power of a maximum or a maximum.Although yet this distortion only is of short duration can being enough to the pulse of axle drive shaft transmit force.

Be illustrated in to demonstration a kind of state that may exist after the end return motion among Fig. 2 c.The there axle drive shaft by to the motion of the weak point of opening direction from moving with direct contact of drive side follower 22 with leaving.

Can guarantee with this method in a word, open direction and can not or only can cause in the external force of closing element effect with being reduced the motion of burst transmissions or drive side.Displace direct-coupled gap between side and the drive side actuator by after finishing the motion of drive side actuator at closing direction, again set up a releasing by return motion, can realize this point.

Claims

1. the method that is used for the operation hull closures,

Wherein closing element (2) can move at closing direction on first direction in face of stop edge especially by the driving motor (4) by control unit (7) control, wherein control unit (7) can place normal operating mode and sleep mode, in the current station acquisition of normal operating mode upper/lower positions data as closing element (2), executing location data acquisition not under sleep mode

Coupling device (11) wherein is provided, be used for driving motor (4) and closing element (2) mechanical couplings, wherein coupling device (11) has around spring unit, be used for when there is not moment upward to cause self-locking in the direction of opening against closing direction as the time spent at coupling device (11) at drive side, wherein being coupling between driving motor (4) and the closing element (2) of machinery around spring unit has the gap

Have the following step:

-operation driving motor (4) is used for making closing element (2) motion at first direction; And

-when the motion of closing element (2) on first direction should stop, operation driving motor (4) moved closing element (2) on against the second direction of first direction especially opening direction.

2. method according to claim 1, wherein, the motion of driving motor (4) on second direction carried out with following degree, and it is less than or equal to the gap around spring unit.

3. method according to claim 2, wherein, the motion of driving motor (4) on second direction carried out with a kind of degree at least, thereby from the first angle and the second angle and produce, wherein the first angle is corresponding to following angle, it is the angle that drive side actuator (21) must pass through under applying the situation of drive torque until when released around spring, wherein the second angle is corresponding to such as lower angle, the angle of namely moving in the situation of the power of maximum or maximum moment from external action around spring.

4. according to claim 1 to one of 3 described methods, regulation wherein, when the manipulation of executive component (8) finishes, should phase down element (2) in the motion of first direction.

5. according to claim 1 to one of 4 described methods; wherein; when position data explanation closing element (2) facing to the edge of stop edge and the interval between the stop edge during less than the interval predesignated; remove clamping defencive function, this function causes automatically shutting down of driving motor (4) when detecting jam.

6. hull closures, particularly automatic glass regulator system comprise:

-closing element (2), it can move at closing direction on first direction in face of stop edge especially by driving motor (4),

-control unit (7) is used for operation driving motor (4); Wherein control unit (7) can place normal operating mode and can place sleep mode, and position data is as the current station acquisition of closing element (2) in the normal operating mode; Executing location data acquisition not in the sleep mode,

-coupling device (11), be used for driving motor (4) and closing element (2) mechanical couplings, wherein coupling device (11) has around spring unit, be used for when there is not moment upward to cause self-locking at first direction as the time spent at coupling device (11) at drive side, wherein being coupling between driving motor (4) and the closing element (2) of machinery around spring unit has the gap;

Wherein, control unit (7) also is configured to:

-when the motion of closing element (2) on first direction should stop, making driving motor (4) motion in the second direction against first direction.

7. the computer program that comprises program code, when this program code when data processing equipment is performed, the described method of one of executive basis claim 1 to 5.