Switching device for actuators in motor vehicles

Abstract

1,089,026. Arrangement of switches. DAIMLER-BENZ A.G. Oct. 12, 1965 [Oct. 27, 1964], No. 43218 / 65. Heading B7H. [Also in Division E2] In motor vehicles having windows, seats, sliding roofs, and ventilating flaps adjustable by servomotors powered by the vehicle battery provision is made to enable the servomotors to operate when the ignition circuit has been switched off. The servomotors may be electric and act directly on the windows &c. or may drive a pump so that the windows &c. are operated hydraulically. In one form a thermoswitch is provided in parallel with the ignition switch enabling the servomotor to be operated for some time after switching off the ignition and until the engine temperature drops to a predetermined value. In another form, one of the door locks is wired into the circuit of a relay controlling the servomotor so that the servomotor can be operated after switching off the ignition until the door is finally locked. In other forms holding contacts are provided and separate coils may be provided to effect opening and closing, the switches can be associated with two of the door locks. These safeguards prevent the supply of current to the servomotor over long periods when the car is parked.

Description

[0001] Switching device for actuators in motor vehicles The invention relates to a switching device for actuators for actuating Adjustable components in motor vehicles, such as flaps, windows, seats, sunroofs, etc.

[0002] Automatic switching devices for switching off the vehicle lighting when the vehicle is parked are already available. known, whereby, in addition to the lighting, other electrical consumers may be connected, but these are not under the influence of the automatic The electrical circuit is switched off when the vehicle is parked. When the vehicle is started, the driver switches off the electrical consumers. by closing a switch equipped with an indicator light, it is energized so that the various devices of the The vehicle's lights can be operated. After closing another switch, the vehicle's lights are also switched on and remain on. Effective until one or more switches are opened. This can be achieved through a switching device, e.g., one acting under the influence of a heating coil. With the bimetallic switch in the "on" position, the vehicle lighting remains switched on until the temperature drops low enough for the bimetallic switch to open and which causes the lamps to go out. However, with this known switching device, the automatic shutdown of the vehicle's lighting is possible. can be overridden by an arbitrarily activated switch. The vehicle's other electrical consumers are not connected to it at all. Automatic shutdown device connected (US patent 2,806,980).

[0003] However, built-in components such as flaps, seats, sunroofs or the like should not only be adjustable while driving or when the ignition is switched on. This can happen not only after the engine is switched off, but also after the vehicle is stationary. On the other hand, this must be guaranteed. It must be ensured that the actuators connected to the battery are not constantly powered when the vehicle is switched off, as otherwise there is a risk of damage. This could result in impermissible battery discharge and even a fire.

[0004] The invention is based on the objective of providing a servo motor for actuating the adjustable components of motor vehicles. To create a switching device whose power supply depends on vehicle equipment that is activated when the vehicle is switched off and exited. The change will take effect and cannot be overridden by an additional switch.

[0005] To solve this problem, the invention for a switching device of the type mentioned above consists in the fact that the power supply to the actuators for the adjustable components, even with the ignition switched off, until a signal from the Drive motor heat-affected, known for switching off the lighting, opens the locking devices for the Vehicle doors are brought into the closed position.

[0006] In an embodiment of the invention, the thermal switches or the locking devices act via further switches on various Relays that open or close the circuit to the actuators. The switches associated with the locking devices are called Pulse switches are designed and energize the relay coils when the locking devices are opened and closed, so that so that the power supply to the actuators is closed or interrupted. The relays affected by the locking devices are equipped with switching contacts and holding contacts. Furthermore, the thermal switch is arranged in parallel to the ignition switch and the ignition and Thermal switches are connected upstream of the switch for the actuators. Finally, the locking devices influence the control lines to... The relays are controlled via various switches, while one switch is located in the main circuit of the actuator or the actuators. - The influence of Switches connected to the door locks can be designed so that they can only be operated via a door handle or the switch assigned to it. Locking device or via the locking devices of the right and left vehicle doors. The drawings show various embodiments of the switching device according to the following description, which are explained in more detail below. The invention is shown schematically. Figure 1 shows a switching device with a thermal switch arranged in parallel to the ignition switch. Figure 2 shows a switching device with a thermal switch arranged in parallel to the ignition switch. a switch cooperating with the locking device of a door and Fig. 3 to 5 different embodiments of with the Locking devices of both doors connected to switches.

[0007] An actuator 1 is connected to the circuit of the battery 2, wherein the actuator 1 is switched on by a switch 3 via a relay 6. and is switched off. In the control circuit of relay 6, ignition switch 4 and a thermal switch are connected in parallel to switch 3 and ignition switch 4. 5 is connected upstream. When the internal combustion engine is cold, relay 6 can only be closed and thus the actuator JL can only be put into operation if The ignition switch 4 is switched on. After the combustion engine has heated up, the thermal switch 5 will also close and the Current flow to relay 6 is maintained with ignition switch 4 off until the internal combustion engine has cooled down. Therefore, it is possible that... After driving, with the ignition switch off, the various devices can still be moved for a while via the actuator 1.

[0008] According to Fig. 2, a switch 11 is connected to the locking device 9a of a door handle 9, which, when the door is opened, The interlocking device allows current to flow to relay 6 when switch 3 is closed. If the interlocking device 9 a in the sense of closing@, then the switch 11 opens and the current flow to relay 6 and thus also to actuator 1 is opened. interrupted. - According to Fig. 3, the locking devices 9a and 10a of the door handles 9 and 10 are assigned switches 12, the coils 7a, 7b influencing a relay 7. When the locking devices 9a and 10a are opened, the coil 7a is energized and the relay 7 closes. the circuit to actuator 1. Relay 7 remains closed until the locking devices 9a and 10a are in the closing direction. are moved, which energizes coil 7b and thus opens relay 7.

[0009] In the embodiment shown in Fig. 4, switches 13 are assigned to the locking devices 9a and 10a. These influence A relay 8 with a holding contact 8a and a switching contact 8b. In this case, the ignition switch 4 is also installed in the circuit. If the ignition switch 4 is open, the coil of the z# remains closed before the locking devices 9 or 10 are actuated in the direction of closing. Relay 8 is energized via the holding contact 8a. A modification of the switching device according to Fig. 4 shows the arrangement according to Fig. 5. Locking devices 9a and 10a are assigned to switches 14 and 15, in whose center position relay 8 remains closed. When the locking devices 9a or 10a are moved in the closing direction, the circuit to relay 8 is interrupted and this opens.

[0010] Within the scope of the invention, the relays associated with the actuator 1 can also be other relays, with the stopping and switching off of the Vehicles and related facilities are affected. It only needs to be ensured that during extended parking and in general... During longer breaks in driving, the power supply from the battery to the actuator is interrupted.

Claims

[0011] Claims:

1. Switching device for actuators for actuating adjustable components in motor vehicles, such as flaps, Windows, seats, sunroofs or the like, characterized by the fact that the power supply to the actuators for the adjustable components is also maintained when with the ignition switched off, the lighting remains switched off until a signal influenced by the heat of the drive motor is received. The known thermal switch (5) opens or the locking devices (9 a and 10 a) for the vehicle doors are brought into the closed position.

2. Switching device according to claim 1, characterized in that the thermal switch (5) or the locking devices (9a and 10a) are connected via Switches (12, 13, 14 and 15) act on relays (6, 7 and 8), which open or close the circuit to the actuators (1).

3. Switching device according to claims 1 and 2, characterized in that the switches (12) associated with the locking devices (9 a and 10 a) are configured as pulse switches are designed and, when the locking devices are opened and closed, the coils (7a or 7b) of the relay (7) are energized.

4. Switching device according to claims 1 and 2, wherein characterized in that the locking devices (9a and 10a) act on relays (8) which are equipped with switching contacts (8b) and holding contacts (8a) are equipped.

5. Switching device according to claims 1 and 2, characterized in that the thermal switch (5) is connected in parallel to the ignition switch. (4) is arranged and the ignition and thermal switches (4 and 5) are connected upstream of the switch (3) for the actuator (1).

6. Switching device according to the Claims 1 and 2, characterized in that the locking devices (9 a and 10 a) control the control lines via switches (12, 13, 14 and 15). The relays (7 and 8) are affected while the switch (3) is in the main circuit of the actuator (1). References: U.S. Patent No. 2,806,980.