JP2950159B2 - Power supply system for sliding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply system for a sliding door.

[0002]

2. Description of the Related Art A power supply system for a sliding door includes a power supply control unit having a power supply control circuit and a power supply relay, and a power supply terminal on the body side and a power supply terminal on the slide door side for supplying power from the body side. It is composed of a junction switch to be brought into contact, a switch for detecting sliding door closing, and the like. The power is supplied only when the slide door is closed based on the operation of the slide door close detection switch. Generally, the junction switch is disposed in a body opening that is opened and closed by a slide door. In addition, the switch for detecting the closing of the sliding door can detect the position of the upper roller or lower roller bracket of the sliding door,
It is arranged on a rail section for guiding each roller.

[0003]

As described above, the switch for detecting the closing of the sliding door cannot be installed due to the structure of the body, or the sliding door cannot be installed due to variations in the accuracy of parts, mounting errors, and mounting of the body. When the closing detection position is shifted, even when the sliding door is closed, the power is not supplied to the electric mechanism provided in the sliding door, and the sliding door may not operate. In addition, the mounting position and space of the switch for detecting the closing of the sliding door are limited, so that the structure and mechanism of the switch are complicated, and a separate switch for detecting the closing of the sliding door is required, thereby increasing the cost. There was a point. SUMMARY OF THE INVENTION It is an object of the present invention to provide a power supply system in which a switch for detecting the closing of a slide door is eliminated in order to solve the above problems.

[0004]

A power supply system for a slide door according to the present invention for achieving the above object supplies power to the electric lock mechanism disposed on the slide door from the body side. In a power supply system for a sliding door provided with a junction switch connected when is closed, the on timing is delayed from the on timing of the junction switch, and the off timing is earlier than the off timing of the junction switch. Is provided on the electric lock mechanism, and an ON signal of the half latch switch turns on a power supply relay provided on the body side to supply power to the junction switch;
A power supply relay provided on the body side is turned off in response to an off signal of the half latch switch, and power supply to the junction switch is stopped.

[0005]

In the power supply system for a slide door having the above-mentioned structure, when the slide door is closed, the junction switch is turned on after the half-latch switch provided in the electric lock mechanism is turned on and the power supply relay is turned on. Then, power supply to the electric lock mechanism in the slide door is started. When the sliding door is opened, the half-latch switch is turned off, the power supply relay is turned off, the power supply is stopped, and then the junction switch is turned off. Therefore, since the closing of the slide door is confirmed by the half-latch switch, there is no need to provide a switch for detecting the slide door closure, which is unstable depending on the mounting position, so that the mechanical configuration is simplified and the low Can be realized at cost. In addition, when the junction switch is turned on and off, the junction switch is not in the power supply state in which the battery voltage is applied. Therefore, it is possible to prevent the occurrence of a spark and to make the slide switch open to expose the junction switch. There is an effect that a short circuit can be prevented even when an operation is performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic block diagram of a power supply system for a sliding door according to a first embodiment. A power supply control unit (hereinafter referred to as power supply ECU) 1, a power supply circuit 10, and a door lock control unit 22 (hereinafter referred to as door lock ECU) are provided on the body side. A slide door easy closer control unit (hereinafter referred to as an easy closer ECU) 11 is provided inside the slide door. The power supply ECU 1 and the easy closer ECU 11 are electrically connected via a first junction switch 31 connected by closing the slide door. The first junction switch 31
Are the power supply terminals 32 on the body side and the slide door side, respectively.
a, 32b and ground terminals 33a, 33b. The circuit closed by the power supply terminals 32a and 32b is used as a power supply line, and is body-grounded by the ground terminal 33a.

The power supply ECU 1 comprises a power supply relay 2 and a logic circuit 3. The power supply relay 2 includes fixed relay contacts 2a and 2b and a switching relay contact 2c. The fixed relay contact 2a is connected to a (+ B) terminal, and the switching relay contact 2c is connected to a (+ BOUT) terminal. An on / off signal of a half latch switch 20 described later is input to the logic circuit 3 via the signal input terminal 4, and the operation of the power supply relay 2 is controlled based on this signal. Power supply relay 2
Is activated by a control signal from the logic circuit 3, and switches the switching relay contact 2c to the fixed relay contact 2a and the fixed relay contact 2b.
Switch between.

The easy closer ECU 11 includes a logic circuit 1
2, a forward rotation relay 13, a reverse rotation relay 14, a full lock cam position switch input circuit 15, a half latch switch input circuit 16, and a remote control switch input circuit 17; The (+ B) terminal of the easy closer ECU 11 and the (G
The ND) terminal is connected to the power supply terminal 32b and the ground terminal 33b on the slide door side of the first junction switch 31, respectively. A sliding door full lock motor 18 is connected between the forward rotation relay 13 and the reverse rotation relay 14. The full lock cam position switch 19, the half latch switch 20, and the remote control switch 21 are connected to the ground terminal 3 of the first junction switch 31, respectively.
3b.

The door lock ECU 22 switches the two relays 23 and 24 to switch the door lock motor 25 on the body side.
Further, a door lock motor drive circuit 27 for rotating the slide door lock motor 26 in the forward and reverse directions is connected through a second junction switch 34 connected by closing the slide door. The second junction switch 34 has central terminals 35a, 35a on the body side and the slide door side, respectively.
5b, door lock motor drive terminals 36a, 36b and 3
7a and 37b. The central terminal 35a is connected to the signal input terminal 4 of the power supply ECU 1 and is connected to the central terminal 35a.
b is connected between the half latch switch 20 and the half latch switch input circuit 16.

The ON timing of the half-latch switch 20 when the sliding door is closed depends on the connection timing of the power supply terminals 32a and 32b and the ground terminals 33a and 33b of the first junction switch 31, and the second junction switch. 34 center terminals 35a, 3
It is set to be later than the connection timing of 5b. When the sliding door is opened, the timing at which the half latch switch 20 is turned off is determined by the timing at which the power supply terminals 32a, 32b and the ground terminals 33a, 33b of the first junction switch 31 are separated, and the timing at which the second latch switch 20 is separated.
Central terminals 35a and 35b of the junction switch 34
Are set so as to be faster than the timing of separation. Specifically, this is achieved by increasing the stroke of each terminal on the movable side of the first junction switch 31 and the second junction switch 34.

The operation of the power supply system for a sliding door having the above configuration will be described with reference to the timing chart of FIG.
The slide door is closed, and the terminals of the first junction switch 31 and the second junction switch 34 are turned on. Subsequently, when the slide door is in the half-door state and the half-latch switch 20 is turned on, the ON signal is sent to the center terminal 35b → 35a of the second junction switch.
→ The signal input terminal 4 of the power supply ECU 1 is fed back to the logic circuit 3, and the power supply relay 2 is operated by the control signal output from the logic circuit 3, and the switching relay contact 2c is switched from the fixed relay contact 2b to the fixed relay contact 2a. Can be

As a result, the battery voltage is applied to the easy closer ECU 11 via the first junction switch 31 for 30 seconds to be in a power supply state. 0.5 seconds after the start of the power supply, the slide door full lock motor 26
Is driven forward for about 5 seconds, then temporarily stopped and then reversely stopped to be fully locked. During this time, the full lock cam position switch 19 is turned on / off. After 30 seconds, feed relay 2
Is switched to the fixed relay contact 2b, and the power supply ends. When the slide door is opened after full lock or while the power supply relay 2 is operating, the terminals of the first and second junction switches 31 and 34 are turned off after the half latch switch 20 is turned off. Therefore,
The control signal from the logic circuit 3 of the power supply ECU 1 is cut off, and the switching relay contact 2c of the power supply relay 2 is changed to the fixed relay contact 2b.
Then, the power supply is stopped, and the power supply terminals 32a, 32b of the first junction switch 31 and the ground terminals 33a, 33b are separated from each other.

Second Embodiment FIG. 3 is a schematic block diagram of a power supply system for a sliding door according to a second embodiment. The power supply system for a sliding door according to the present embodiment includes the power supply ECU 1, the power supply circuit 10, the easy closer ECU 11, the first junction switch 31, the door lock assembly 41, and the door lock striker 42 of the first embodiment. It is. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals, and the detailed description is omitted. The terminal 33c on the body side of the first junction switch 31 and the signal input terminal 4 of the power supply ECU 1
Are connected, and the terminal 33d on the slide door side is connected to the half latch switch 20 and the half latch switch input circuit 16.
It is connected between. The ground side of the full lock cam position switch 19, the half latch switch 20, and the remote control switch 21 and the (GND) terminal of the easy closer ECU 11 are connected to the door lock assembly 41. The door lock striker 42 is body-grounded.

In the power supply system for the sliding door, when the sliding door is closed, the first junction switch 31 is connected, and the door lock assembly 41 and the door lock striker 42 are engaged, the full lock cam position on the sliding door side is set. Switch 19, half latch switch 20
The earth side of the remote control switch 21 and the (GND) terminal of the easy closer ECU 11 are body grounded. Therefore, even if the half-latch switch 20 is in the ON state in the half-door state, the ON signal is not input to the signal input terminal 4 of the power supply ECU 1. In the second embodiment,
The power supply system is configured with only two terminals of the first junction switch 31 that connects the body side and the slide door side.

In each of the above-described embodiments, the closing of the slide door 1 is confirmed by the half-latch switch 20, so that there is no need to provide a switch for detecting the slide door closing which is unstable depending on the mounting position. In addition, the mechanical configuration can be simplified and realized at low cost. Further, when the junction switch is turned on / off, the power is not supplied with the battery voltage applied to the junction switch.
Even when the slide door 1 is opened and the terminals of the junction switch are exposed, there is no short circuit between the terminals due to tampering.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a power supply system for a sliding door according to a first embodiment.

FIG. 2 is a timing chart showing the operation of the first embodiment.

FIG. 3 is a schematic block diagram of a power supply system for a sliding door according to a second embodiment.

[Explanation of symbols]

 Reference Signs List 1 power supply ECU 2 power supply relay 4 signal input terminal 11 easy closer ECU 16 half latch switch input circuit 18 slide door full lock motor 20 half latch switch 31 first junction switch 32a, 32b power supply terminal 33a, 33b ground terminal 34 second junction switch 35a, 35b Central terminal 41 Door lock assembly 42 Door lock striker

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP2-30747 (JP, U) JP3-1223749 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) B60R 16/02 645 B60J 5/06

Claims (1)

(57) [Claims] A power supply system for a sliding door, comprising: a junction switch connected when the sliding door is closed to supply power from a body side to an electric lock mechanism disposed on the sliding door. The electric latch mechanism is provided with a half-latch switch in which the timing is delayed from the on-timing of the junction switch and the off-timing is set earlier than the off-timing of the junction switch. The power supply relay provided on the body side is turned on to supply power to the junction switch, and the power supply relay provided on the body side is turned off by the off signal of the half-latch switch to supply power to the junction switch. Characterized by stopping Power supply system for a sliding door.