DE102006049223A1 - Window lift-motor controlling method involves, identifying actual vehicle condition and possible opening of vehicle door and movement tolerance of mechanical transmission system is compensated in opening direction - Google Patents

Abstract

The method involves identifying actual vehicle condition and possible opening of the vehicle door. The motor drive (4) of the mechanical transmission system (6) propels against or in same direction of the preceding movement of the windowpane (2) in dependence of the determined vehicle condition. The movement tolerance of the mechanical transmission system is compensated in opening direction. An independent claim is also included for a control system of window lift-motor.

Description

The The invention relates to a method for controlling the movement of a Window pane and a control system for a powered window lift with a short-stroke function for a windowpane.

Out DE 196 32 139 C1 is a method for controlling the movement of a window of a motor vehicle door, in particular a Kurzhubabsenkung the upper edge of a free-standing frameless window glass from a body-side interlocking Dichtungsumgriff in a Kurzhubposition known. After lowering the window in Kurzhubposition the motor drive is moved as far in the closing direction of the window until the system lot is compensated. A disadvantage of this method is that when opening the door and approaching the Kurzhubposition only the system lot must be overcome. As a result, the short-stroke position can not be achieved quickly enough by lowering the window pane in order to avoid damaging the seal.

Out DE 10 2004 021 021 A1 is a method and a device for controlling the movement of a window in a motor vehicle door by means of a power-operated adjusting drive between an opening end position in which the window is completely lowered into a door shaft of the motor vehicle door, and a closing end position in which the disc top in a Seal gripping is raised, known. In the DE 10 2004 021 021 A1 vary predefined lowered positions described so that each different parts or sections of the adjustment are in engagement with each other. This method has the disadvantage that the short-stroke position of the window is only reached when the vehicle door is already open. This could damage the seal.

Out DE 103 38 767 A1 a door glass control system is known, consisting of a motor-raised and lowered window, at least one proximity sensor, an actuator with a touch-sensitive sensor and a door control device which moves the window by means of the power window in a short-stroke position upon contact of the actuating element. Sensors on the actuators of the door are used to output a short-stroke request signal. Other proximity sensors output the short-stroke request signal as the operator approaches the vehicle. Thus, a time advantage of reaching the short-stroke position when opening the vehicle door should be achieved. This control has the disadvantage that a plurality of proximity sensors are used. Another disadvantage is that the Kurzhubanforderungssignal is also issued when a person approaches the vehicle door when the vehicle is not locked.

Of the Invention is based on the object, an improved method for controlling a powered window regulator and a Indicate control system.

The Task is according to the invention with a Process having the features specified in claim 1 and with a control system, which specified in claim 12 Has features solved.

advantageous Further developments of the invention are the subject of the dependent claims.

At the inventive method a current vehicle state is identified, wherein the motor Drive the window regulator the mechanical transmission system depending from the determined vehicle condition and a possible opening of the vehicle door as long in the opposite direction or in the same direction as the previous one Movement of the window pane drives up to at least one movement tolerance of the mechanical transmission system in the opening direction is compensated. In this case, in particular, the transmission system is driven as long until the movement tolerance (also called game or system lots) of the mechanical transmission system is compensated and the window pane is not yet moving. The Compensation of the movement tolerance is especially in those vehicle conditions carried out, in which the door open could be. Leading to a shortening the reaction time of the window lifter, as when opening the door and the start of the window in their Kurzhubposition the movement tolerance of the transmission system no longer overcome must become.

The Control function is different in given vehicle states educated. The starting point of the explanations is a vehicle with closed door.

If, when closing the door, the vehicle state is "door closed" and "opening the door possible", with the vehicle standing, not driving and not locked, identi fied, then the window regulator closes the window pane in a first method step from the short-stroke position. and positive fit. In a further method step, the movement tolerance of the mechanical transmission system in the opening direction of the window pane is compensated. In other words, in this vehicle state, after each closing of the window pane, the game or system always becomes loose compensated by the transmission system by the transmission system against the previous closing movement in the opening direction is actuated until no movement of the window is yet. As a result, a rapid achievement of the short-stroke position of the window when opening the vehicle door is made possible, for example, by moving the door handle without play compensation, the window pane is moved directly into the short-stroke position.

In a further identified vehicle state "vehicle locked" is the window pane power and form-fitting closed. The next time you open the Window pane, the movement tolerance and thus the game must first be overcome before the windowpane moves.

In a further embodiment can before the actual opening the vehicle door in the identified vehicle state "unlock the vehicle" the movement tolerance of the mechanical transmission system in the opening direction compensated for the window or at already balanced movement tolerance the window pane can be moved directly into the short-stroke position.

In a further identified vehicle state "unlocked vehicle and / or opening the door" moves the Windows lift the window immediately into the short-stroke position. There the Be movement tolerance already in the vehicle state "unlocking the vehicle" in the opening direction has been compensated, in the vehicle state "unlocked vehicle" and "opening the door" the short-stroke position without time delay is approached. The short-stroke position is reached when the upper edge of the disc Window pane outside a Dichtungsumgriffs is positioned.

Does that drive Vehicle at a given speed or faster, then one becomes associated Identified vehicle condition in which the window pane and positive fit closed when the window is not previously by the user open has been. There is no compensation for the movement tolerance in the opening direction. When reaching high speeds, the movement tolerance becomes preferably in the closing direction the window is compensated. As a result, wind noise or Fluttering of the window pane is avoided.

is closed the window pane before stopping the vehicle frictionally and positively, then when the stop of the vehicle is identified, the movement tolerance becomes of the mechanical transmission system in the opening direction the window pane compensates as it is in this vehicle condition possible is that the door open could be. Thus, the window is placed in a position before opening the door, in which the window pane at the next control of the window regulator without delay can be lowered, in particular moved to the short-stroke position can.

Becomes a wide open and outside the short-stroke position positioned window in a standing Vehicle is identified and a window closure is identified, Thus, in a first process step, the window pane is subjected to force and positive fit closed and in a further process step, the movement tolerance of the mechanical transmission system in the opening direction the window is compensated. This allows for the next activation the window regulator lowering the window without delay, so this when opening the door can be moved directly into the short-stroke position.

Becomes as another vehicle state that identifies the vehicle with a given speed or faster driving and the window open wide and outside the short-stroke position is arranged, so if the desire the Close the windowpane is present, this positive and positive closed and the movement tolerance in the closing direction the window is compensated. As a result, wind noise during the Drive avoided.

Conveniently, is the movement tolerance or the systemless of the transmission system based the torque of the motor drive determined. As the motor Drive during the movement tolerance only the mechanical resistance of the transmission system to overcome has less torque than moving the windowpane. As the current consumption of a motor drive is directly proportional is the torque, is also the current consumption of the motor drive usable for determining the movement tolerance of the transmission system. Alternatively or in addition can the movement tolerance by counting pulses of a Hall sender be determined, which on the drive shaft of the motor drive attached.

In addition, the closing or open-end position of the window pane can additionally be detected by a time signal if there are no rotation signals. In this case, in the absence of rotation signals, the time signal on exceeding a predetermined value, for. B. 250 ms, wherein the time signal is activated simultaneously with a request signal for the window in the up or to direction. If the time signal exceeds the predetermined value, then the associated position, in particular reached one of the final positions.

By the compensation of the movement tolerance of the transmission system in vehicle conditions, in which the door open could become a shortening the reaction time of the window lifter when approaching the short-stroke position reached. In the vehicle conditions where the vehicle is traveling faster than a predetermined speed is the window closed frictionally and positively and disturbing wind noise avoided.

One embodiment The invention will be explained in more detail with reference to a drawing. It shows:

1 a block diagram of a motor-driven window regulator with a control system for driving.

1 shows a block diagram of a power window lifter 1 for controlling the movement of a window pane 2 , The window regulator 1 is in a vehicle door 3 integrated. The window regulator 1 includes a motor drive 4 with a drive shaft 5 , a mechanical transmission system 6 and a controller 7 ,

The control 7 processes various input variables from sensors S1 to Sn or data D of other control devices for controlling the motor drive 4 ,

For determining the movement tolerance of the mechanical transmission system 6 become a torque signal M of a torque sensor S1 of the motor drive 4 and counts Z of a Hall sensor S2, which is connected to the drive shaft 5 of the motor drive 4 is positioned, evaluated. The movement tolerance is then balanced when the torque signal D of the motor drive 4 after a start increase and the drop to a certain value exceeds a predetermined value. At this point, the movement tolerance is balanced. The control 7 stops the motor drive 4 , The number of counting pulses Z of the Hall sensor when compensating for the movement tolerance is a measured value of the movement tolerance.

From the controller 7 are also evaluated as data D vehicle status signals that are transmitted, for example via an in-vehicle bus system.

• – Absperren des Fahrzeuges,
• – Entriegeln des Fahrzeuges,
• – entriegeltes Fahrzeug,
• – Öffnen der Tür,
• – Schließen der Tür,
• – Fahren des Fahrzeuges ab einer vorgegebenen Geschwindigkeit,
• – Anhalten des Fahrzeugs,
• – Schließen der geöffneten und außerhalb der Kurzhubposition P2 positionierten Fensterscheibe 2 bei stehendem Fahrzeug und/oder
• – Schließen der geöffneten und außerhalb der Kurzhubposition P2 positionierten Fensterscheibe 2 bei fahrendem Fahrzeug ab einer vorgegebenen Geschwindigkeit.

On the basis of the supplied data D, the calculated counting pulses Z and / or the torque signals M are by means of the controller 7 determined and identified at least the following vehicle states:

• - shut off the vehicle,
• - unlocking the vehicle,
• - unlocked vehicle,
• - opening the door,
• - closing the door,
• Driving the vehicle from a predetermined speed,
• - stopping the vehicle,
• - Close the window that is open and positioned outside the short-stroke position P2 2 when the vehicle is stationary and / or
• - Close the window that is open and positioned outside the short-stroke position P2 2 when the vehicle is moving from a predetermined speed.

In addition, further vehicle conditions can be identified and in the control of the window regulator 1 be taken into account.

If one of the aforementioned vehicle states is identified, then by means of the controller 7 the motor drive 4 as a function of the determined vehicle condition as long as in the opposite direction or in the same direction of the previous movement of the window pane 2 driven until at least the movement tolerance of the mechanical transmission system 6 is compensated.

The following describes the control for different vehicle states:
If, for example, based on a vehicle condition signal, a state is identified in which the vehicle is locked, so gives the control 7 a motor control signal MS to the motor drive 4 out, which is the windowpane 2 closes frictionally and positively until a closing end position E1. The closing end position P1 is reached when the torque signal Z exceeds a predetermined value. The motor drive 4 is from the controller 7 switched off.

Detects the controller 7 a vehicle state in which the vehicle is unlocked, then controls the controller 7 the motor drive 4 by means of the motor control signal MS such that, taking into account the torque signal M and the Hall sensor S2 to the drive shaft 5 generated count Z, the movement tolerance of the mechanical transmission system 6 in the opening direction of the window pane 2 is compensated. The window glass 2 does not move during this process.

Occurs when a vehicle state in which the unlocked vehicle, the door is opened, z. B. by pressing the door handle, so this is from the controller 7 recognized. From the controller 7 The motor control signal MS is used to open the windowpane 2 to the motor drive 4 given. The window glass 2 is due to the motion compensated in the previous vehicle state tolerance of the mechanical transmission system 6 drove without delay to the short-stroke position P2. The short-stroke position P2 is reached when a corresponding number of counts Z from the Hall encoder S2 to the drive shaft 5 of the motor drive 4 generated and from the controller 7 were detected.

Detects the controller 7 a vehicle state in which the door has been closed, then controls the controller 7 the motor control signal MS so that the window 2 closed positive and positive. The closing end position P1 is reached when the torque signal M or a time signal t exceeds a predetermined value. In the absence of counting pulses Z, the pending motor control signal MS is monitored in the direction "closed" or "closed" on the basis of the time signal t. If, for example, the motor drive signal MS is in the "closing" direction for at least 250 ms (t> 250 ms) with simultaneous missing counting pulses Z, the achievement of the closing end position P1 is identified. The motor drive 4 is from the controller 7 switched off. The window glass 2 is now closed positively and positively. Because the vehicle door 3 can be reopened in this vehicle state, the controller performs 7 a compensation of the movement tolerance of the mechanical transmission system 6 in the opening direction. Here is the motor drive 4 controlled by the motor control signal MS such that the movement tolerance of the mechanical transmission system 6 in the opening direction of the window pane 2 is compensated. The window glass 2 does not move during this process.

In another identifiable vehicle state in which the vehicle is traveling at a predetermined speed or faster, the controller gives 7 a motor control signal MS to the motor drive 4 out, which is the windowpane 2 closes positively and positively until a closing end position P1. The motor drive 4 is from the controller 7 switched off when reaching the closing end position P1.

If the vehicle stops, this will be done by the controller 7 identified. The control 7 controls the motor drive 4 by means of the motor control signal MS such that the movement tolerance of the mechanical transmission system 6 in the opening direction of the window pane 2 is compensated. The window glass 2 does not move during this process.

Detects the controller 7 a vehicle state in which a wide-open and positioned outside the short-stroke position P2 window 2 is closed when the vehicle is stationary, then controls the controller 7 the motor control signal MS so that the window 2 closed positive and positive. The closing end position P1 is reached when the torque signal M or the time signal t exceeds a predetermined value. The motor drive 4 is from the controller 7 switched off. The window glass 2 is now closed positively and positively. Since the door can be reopened in this vehicle state, the controller performs 7 a compensation of the movement tolerance of the mechanical transmission system 6 in the opening direction of the window. The window glass 2 does not move during this process.

In another alternative vehicle state, it is identified that the vehicle is traveling at a predetermined speed or faster and the windowpane 2 is wide open and positioned outside the short stroke position P2 and the windowpane 2 to be closed. In this vehicle state, the controller gives 7 when closing the window 2 a motor control signal MS to the motor drive 4 out, which is the windowpane 2 closes positively and positively until the closing end position P1. The closing end position P1 is reached when the torque signal M or the time signal t exceeds a predetermined value. The motor drive 4 is from the controller 7 switched off.

1

power windows

2

windowpane

3

vehicle door

4

motorized drive

5

drive shaft

6

mechanical transmission system

7

control

D

Vehicle condition signal

M

torque signal

MS

Motor control signal

Z

counts

P1

Closing end position

22

Kurzhubposition

S1 to Sn

sensors

Claims (14)

Method for controlling a motor-operated window lifter ( 1 ) with a short-stroke function for a window pane ( 2 ), whereby the window regulator ( 1 ) a motor drive ( 4 ) and one between window pane ( 2 ) and motor drive ( 4 ) arranged mechanical transmission system ( 6 ), characterized in that a current vehicle state and a possible opening of the vehicle door is identified and the motor drive ( 4 ) the mechanical transmission system ( 6 ) as a function of the determined vehicle condition as long as in opposite or in the same direction tion of the previous movement of the window pane ( 2 ) drives up to at least one movement tolerance of the mechanical transmission system ( 6 ) is compensated in the opening direction. A method according to claim 1, characterized in that as a vehicle condition closing the vehicle door ( 3 ), in which, in a first step, the window pane ( 2 ) is positively and positively closed and in a further step, the movement tolerance of the mechanical transmission system ( 6 ) in the opening direction of the window pane ( 2 ) is compensated. A method according to claim 1 or 2, characterized in that as a vehicle state, an unlocked vehicle and / or an opening of the vehicle door ( 3 ) is identified, in which the window pane ( 2 ) is moved into a short-stroke position (P2), in which the upper edge of the window pane ( 2 ) is disposed outside of a Dichtungsumgriffs. Method according to one of the preceding claims 1 to 3, characterized in that as a vehicle state driving of the vehicle is identified from a predetermined speed, wherein the window pane ( 2 ) is positively and positively closed and the movement tolerance of the mechanical transmission system ( 6 ) is compensated in the closing direction. Method according to one of the preceding claims 1 to 4, characterized in that as a vehicle state a stopping of the vehicle is identified, in which the movement tolerance of the mechanical transmission system ( 6 ) in the opening direction of the window pane ( 2 ) is compensated. Method according to one of the preceding Claims 1 to 5, characterized in that, as a vehicle state, a closing of the window pane which is open and positioned outside the short-stroke position (P2) ( 2 ) is identified when the vehicle is stationary, wherein in a first step, the window pane ( 2 ) is positively and positively closed and in a further step, the movement tolerance of the mechanical transmission system ( 6 ) in the opening direction of the window pane ( 2 ) is compensated. Method according to one of the preceding Claims 1 to 6, characterized in that, as a vehicle state, closing of the window pane which is open and positioned outside the short-stroke position (P2) ( 2 ) is identified when driving the vehicle from a predetermined speed at which the window pane ( 2 ) is positively and positively closed and the movement tolerance of the mechanical transmission system ( 6 ) is compensated in the closing direction. Method according to one of the preceding claims 1 to 7, characterized in that the movement tolerance of the transmission system ( 6 ) based on the torque of the motor drive ( 4 ) is determined. Method according to one of the preceding claims 1 to 8, characterized in that the movement tolerance of the transmission system ( 6 ) based on the current consumption of the motor drive ( 4 ) is determined. Method according to one of the preceding claims 1 to 9, characterized in that a current window pane position based on counting pulses (Z) of a Hall sensor for the drive shaft ( 5 ) of the motor drive ( 4 ) is determined. Method according to one of the preceding claims 1 to 10, characterized in that the movement tolerance of the transmission system ( 6 ) is determined with each movement of the window regulator. Control system ( 7 ) for a powered window lift with a short-stroke function, wherein the window regulator a window pane ( 2 ), a motor drive ( 4 ) and between window pane ( 2 ) and motor drive ( 4 ) arranged mechanical transmission system ( 6 ), characterized in that the motor drive ( 4 ) based on a currently determined vehicle condition and a possible opening of the vehicle door, the mechanical transmission system ( 6 ) as a function of the determined vehicle condition as long as in the opposite or in the same direction of the previous movement of the window pane ( 2 ) drives up to at least one movement tolerance of the mechanical transmission system ( 6 ) is compensated in the opening direction. Control system ( 7 ) according to claim 12, characterized in that for determining the current vehicle condition and / or the position of the window lifter, in particular the window pane ( 2 ) and the motor drive ( 4 ) at least one sensor (S1 to Sn) is provided. Control system ( 7 ) according to claim 13, characterized in that the sensor (S1 to Sn) is a Hall sensor, a current sensor and / or a torque sensor.