EP0905345B1 - Actuating device for a sliding door using an electromotor. - Google Patents

Description

The invention relates to an electromotive actuator according to the preamble of claim 1. In particular, it is intended to an electromotive actuation of motor vehicle sliding doors.

For this application, in addition to the manual operation, which requires a relatively inconvenient relatively high expenditure of force to open and close the door, electromotive actuators known to facilitate the opening and closing of the door at least considerably and by providing limit switches and a complete opening or closing the Ensure sliding door. However, the known solutions of this type have disadvantages. So requires the operation after the DE 196 39 974 A1 a manual "pushing" the sliding door, that is, this must be moved from their respective end position by hand a piece before an actuating circuit for the electric motor in the sense of a motor continuation of the thus initiated door movement is closed by means of a motion sensor for this manually performed door movement. As in the introduction to the description of this disclosure with reference to the working on the same principle after the solution U.S. Patent 5,434,487 executed, such motion sensors but relatively expensive; Their space requirements are difficult to fulfill, especially in vehicles. Accordingly, in the publication, another, more compact embodiment of the motion sensor is proposed; As before, however, such a direction-sensitive motion sensor remains complex and have the disadvantage that a manual pushing of the doors in the desired direction is required to initiate the electromotive door movement.

This uncomfortable pushing the door is unnecessary in the generic actuator after the EP 0 122 556 B1 , There, the actuating circuit for the electric motor by an additional handle, namely the insertion and rotation of a key in a rotary contact, closed. Even if but for the sake of relieving the movement of a key there provided rotary contact or rotary switch replaced by a simple pressure contact, there remains the need to provide on the vehicle body (in a motor vehicle sliding door) an additional contact and operate, to disarm the closed Sliding door also a door handle must be pressed.

US-A-5216838 disclosed to electrically actuate a sliding door of a motor vehicle. It is a power-cut off electric motor, which serves to drive the sliding door, connected by manually pressing a door handle again with a voltage source, so that the sliding door completely opens or opens by electric motor. After reaching the respective end position of the electric motor is then switched off again by the corresponding limit switch. The sliding door is fully electrically operated from the cockpit of a motor vehicle. For this purpose, a total of four electric motors are provided, which make the necessary Bewegungsabläüfe.

The invention has for its object to provide an electromotive actuator for a sliding door, in which the operating cost is reduced and a comfort improvement is given.

1. a) einen Türinnengriff und einen Türaußengriff zum Aufbringen von manuellen Türbeweguhgsbefehlen;
2. b) einen nur während Türbewegungen mit einer Spannungsquelle über einen Betätigungsstromkreis verbundenen, dem Türantrieb dienenden Elektromotor;
3. c) einen Türstellungssensor zur Unterbrechung des Betätigungsstromkreises des Elektromotors bei Erreichen vorgesehener Endlagenanschtäge:
4. d) Stellungsänderungen des Türinnengriffs und des Türaußengriffs erfassende Sensoren, wobei diese Sensoren die Richtung der Stellungsänderung erfassen, und
5. e) Mittel zur Überlagerung des den Betätigungsstromkreis unterbrechenden Signals des Türstellungssensors bei Vorliegen von Signalen der die Stellungsänderungen der Türgriffe erfassenden Sensoren zur elektromotorischen Betätigung der Schiebetür

umfasst, ist vorteilhaft möglich, dass eine Komfortverbesserung bei der Betätigung von elektromotorisch betätigten Schiebetüren eintritt.According to the invention this object is achieved by an electromotive actuator with the features mentioned in claim 1. In that the electromotive actuating device for a sliding door, in particular for a motor vehicle,

1. a) an inside door handle and an outside door handle for applying manual door movement commands;
2. b) an electric motor connected to door drive only during door movements with a voltage source via an actuating circuit;
3. c) a door position sensor for interrupting the actuating circuit of the electric motor upon reaching Endlagenanschtäge:
4. d) position changes of the inside door handle and the outside door handle sensors detecting, these sensors detect the direction of the change in position, and
5. e) means for superimposing the actuating circuit interrupting signal of the door position sensor in the presence of signals of the position changes of the door handles detecting sensors for electromotive actuation of the sliding door

includes, it is advantageously possible that a comfort improvement occurs in the operation of electric motor-operated sliding doors.

The dependent claims describe particularly advantageous embodiments of the invention, because a sliding door is usually associated with limit stops, which are used here to form at least one door position sensor. On the one hand, this ensures the de-energized state of the electric motor when the sliding door is in an end position, but it is dubbed by the signals of the first-mentioned sensor reproducing a door movement command.

An embodiment of the invention for the case of a motor vehicle sliding door schematically shows the figure.

The sliding door 1 is marked in its opened state; it is assigned in the vehicle body 2 of the sliding door opening 3, from which it is first lifted in its opening movement by a movement taking place substantially perpendicular to the plane of the body 2 and then moved in the illustration of the figure to the left. This sliding movement takes place by means of the electric motor 4 known and therefore not to be described type, which is arranged body-fixed and is associated with the indicated at 5 electrical actuating circuit with the control electronics 6 and a not shown on-board battery.

In the figure based on the open end position of the sliding door 1, the end stop 7 provided on it has become effective by approaching or striking the body-side counter-stop 8. The end position stop 7 has, together with the sensor 9, the task of interrupting the actuating circuit 5 at the completion of the opening movement of the sliding door 1 and accordingly to make the motor 4 de-energized. This can be done by mechanical actuation of a contact in the device 9 through the limit stop 7; However, the interruption of the actuating circuit 5 can also be done at this point on capacitive or inductive ways.

This effect of the door position sensor 9 is as it were dubbed by sensors 10 and 11, which are not shown, as known in large numbers door handles and outside door handles are assigned, which in turn change their position when manually initiating an operation command for a door movement. This position change is usually in sliding doors in a limited pivotal movement in the door plane in the direction of the respective desired door movement. This change in position of the door handles in a door movement command, which may be given from inside or outside, is detected by means of the sensors 10 and 11, wherein, as indicated by the line 12, the signal transmission can in turn be made via the end position stop 7. The signals of Sensors 10 and 11 dub the signals of the door position sensor 9, so that with the sliding door 1 open (that is, the door position sensor 9 interrupts the actuating circuit 5 of the motor 4) in the presence of a door movement command (one of the door handles has changed its position) by the corresponding signal one of Sensors 10 and 11 of the actuating circuit 5 is closed and the electric motor 4 operates.

With the invention of a generic electromotive actuator for a sliding door is thus created, which significantly increases the ease of use while preserving the favorable properties of known generic actuators.

Claims (3)

1. Electromotive actuating device for a sliding door, in particular for a motor vehicle, having

   a) an inside door handle and an outside door handle for giving manual door-movement commands,

   b) an electric motor (4) which serves for door-driving purposes and is connected to a voltage source, via a closed actuating circuit, only during door movement,

   c) a door-position sensor (9) for breaking the actuating circuit (5) of the electric motor (4) when provided end-position stops (7) are reached,
   characterized in that

   d) sensors (10, 11) which sense changes in position of the inside door handle and of the outside door handle, wherein these sensors sense the direction of the change in position, and

   e) means for overriding the signal from the door-position sensor (7), this signal breaking the actuating circuit (5), in the presence of signals from the sensors (10, 11), which sense the changes in position of the door handles, for electromotive actuation of the sliding door (1).
2. Electromotive actuating device according to Claim 1, characterized in that the electric motor (4) is arranged in a stationary manner outside the sliding door (1).
3. Electromotive actuating device according to one of the preceding claims, characterized in that the door-end position stop (7) serves for transmitting signals from the sensor (10, 11) into the actuating circuit (5).

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