JP2594883B2 - Power supply method of automatic closing mechanism 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 method for an automatic closing mechanism for a sliding door.

[0002]

2. Description of the Related Art Conventionally, when a vehicle door is closed to a half-latch state by manual operation, an automatic door closing mechanism for fully closing the door to a full latch by the power of a motor is described in many publications and is well known. It is. When the well-known automatic closing mechanism is installed in the door, a special measure is required for the power supply mechanism depending on the type of the door. In other words, the swing open / close door hinged to the vehicle body can directly connect the battery with the automatic closing mechanism in the door and the battery, but slides forward and backward with respect to the vehicle body. In the case of a sliding door that opens and closes, it is not possible to directly connect the automatic closing mechanism in the door and the battery with an electric cable. The power receiving connectors connected to the automatic door closing mechanism are attached to the sides, respectively.
When the door is closed to the half-latch position, both connectors are connected to energize the automatic door closing mechanism. Since the terminals of the connector are normally provided in an exposed state, a short-circuit may occur when a tool or the like touches the terminal. Therefore, conventionally, a relay contact is provided between the plus terminal on the power supply side and the battery, and the relay contact is configured to be closed when a micro switch provided on the vehicle body is pressed by a door closing door and turned on. Power is supplied to the power receiving side connector only when necessary (Japanese Unexamined Patent Publication No.
No. 115676). The prior application (filed on March 8, 1994) according to the present applicant's application includes a connector in which when a power-supply-side connector and a power-receiving-side connector actually come into contact, a current flows between the two connectors. A device that can detect contact between the devices is described.

[0003]

The above-mentioned structure having a structure in which a switch provided on a vehicle body is turned on by closing a door to close a relay contact, the timing at which the switch is turned on and the timing at which both connectors are actually in contact with each other are described. Since it is extremely difficult to exactly match the above, it is necessary to energize the watch at a suitable time. Further, the movable contact is provided in an exposed state, such as the switch,
It is low in reliability and may cause malfunction. Therefore, the present application
A contact detection voltage is applied to the power supply side connector, and the contact detection voltage is caused to drop when the power supply side connector and the power reception side connector come into contact with each other to form a loop, and the voltage drop closes the relay contact. The full-latch motor is energized, and when the full-latch is reached, the contact detection circuit is switched to open the relay contact and stop the motor, so that the switch is not used and the contact between both connectors is detected. This solves the problem of timing when a switch is used. In the prior application of the present applicant, an apparatus is described in which when a power supply side connector and a power reception side connector actually come into contact with each other, a current flows between the two connectors so that contact between the connectors can be detected. However, the prior application has not solved the technical part of the automatic reduction of the current for contact detection after full latch,
The problem of battery drain remained. This application automatically lowers the contact detection current after full latch to prevent battery consumption beforehand, and makes the current after full latch weak to enable detection when the door is opened. is there. This application aims to accurately detect the contact between the vehicle-side connector and the door-side connector, thereby avoiding the use of a microswitch, preventing battery consumption, and detecting the opening of the door. Both the implementation and the implementation by changing the current are conceivable.

[0004]

An object of the present invention is to accurately detect contact between a vehicle-side connector and a door-side connector, to prevent the use of a micro switch, to prevent battery consumption, and to detect the opening of a door.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a power supply connector having a power supply plus terminal, a power supply ground terminal, and a power supply signal terminal on the vehicle body, and a power reception plus terminal on the sliding door. And a power receiving side connector having a power receiving side ground terminal and a power receiving side signal terminal.The power feeding side signal terminal before the door is closed is supplied with a detection voltage from a battery via a power feeding side control circuit, and the door is closed. When the power supply side connector is closed and the power supply side connector is brought into contact with the power reception side connector, an electric loop passing through the power supply side control circuit and the contact detection resistor is formed, and the detection voltage applied to the power supply side signal terminal is a voltage by the contact detection resistance. The power supply side control circuit detects the voltage drop and turns on a relay contact to turn the power supply side control circuit from the power supply side plus terminal via the power reception side plus terminal. When the motor is turned on, the latch in the half-latched state is rotated to the full-latched state by the motor, and when the door is closed in the full-latched state, the termination transistor is turned on by the power-receiving-side control circuit to short-circuit the electric loop and the power-supply-side control circuit The detection voltage applied to the power-receiving-side control circuit is reduced by switching the electric loop circuit in the power-supply-side control circuit to reduce the electric-loop current and turning off the relay contact. This is a power supply method of an automatic door closing mechanism for a sliding door that shuts off a power supply and stops a motor. Further, the present invention provides the power supply method, wherein when the door is reopened, the electric loop is opened, and the voltage of the vehicle battery is again supplied to the power supply side signal terminal of the slide door. Things. The present invention also provides a power supply connector having a power supply side positive terminal, a power supply side ground terminal, and a power supply side signal terminal on the vehicle body side, and a power reception side plus terminal, a power reception side ground terminal, and a power reception side signal on the sliding door side. And a power-receiving-side connector having a terminal, a detection voltage from a battery is supplied to the power-supply-side signal terminal before the door is closed through a power-supply-side control circuit, the door is closed, and the power-supply-side connector and the power-supply-side connector are closed. When the power receiving side connector is brought into contact with the power receiving side connector, an electric loop passing through the power supply side control circuit and the contact detection resistor is formed so that the detection current flows through the electric loop,
The power-supply-side control circuit detects the detection current, turns on a relay contact, supplies power to the power-reception-side control circuit from the power-supply-side positive terminal via the power-reception-side positive terminal, and releases a latch in a half-latched state by a motor. When the door is turned to the full latch state and the door is closed to the full latch state, the termination transistor is turned on by the power receiving side control circuit, the electric loop is switched to reduce the electric loop current, and the relay contact is turned off by the power supply side control circuit. When the power of the control circuit on the power receiving side is turned off and the motor is stopped, and the door is opened, the electric loop current is reduced to zero and the automatic door closing mechanism for the sliding door that knows the open state is used as a power supply method. In the present invention, the power supply side plus terminal 31, the power supply side ground terminal 32, and the power supply side signal terminal 33 of the power supply unit 7 of the vehicle body 1 are connected to the power reception side plus terminal 36 of the power reception unit 9 of the sliding door 3 when the door is open. When the power supply unit 7 is separated from the power receiving side ground terminal 37 and the power receiving side signal terminal 38, the power supply unit 7 applies a voltage for contact detection to the power supply side signal terminal 33, and moves the door 3 in the door closing direction. When the terminals 36 to 38 on the power receiving side are respectively brought into contact with the terminals 31 to 33 on the power feeding side by sliding to the position, the power receiving side signal terminal 33 and the power receiving side signal terminal 38 and the power receiving side ground terminal 37 are connected. An electric loop in which a current of the level IH which reaches the power supply side ground terminal 32 through the power supply side terminal is completed, whereby the power supply section 7 is connected to the power supply side positive terminal 31 through the power reception side plug. Provides power for automatic closing to the scan terminals 36, the level of the power supply unit 7 and the door 3 is completely closing the current flowing in the electrical loop from the level the IH IL
When the power supply for automatic closing to the power supply side plus terminal 31 is stopped and the electric loop is cut off by opening the door 3, the power supply section 7 is connected to the power supply side signal terminal 33. This is a power supply method for an automatic closing mechanism for a sliding door that outputs the contact detection voltage again.
Further, in the method, the power supply unit 7 may be configured to stop the power supply when the voltage applied to the power supply side signal terminal 33 changes during the automatic door power supply. This is the power supply method.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
1 is a vehicle body, 2 is a door attached to the vehicle body 1 so as to open and close by swinging about a hinge, and 3 slides in the front and rear direction along a front and rear direction guide rail 4 provided on a side surface of the vehicle body 1. It is a sliding door that opens and closes. Reference numeral 5 denotes a lock body attached to the sliding door 3 side, which engages with and disengages from the striker 6 fixed to the vehicle body 1 side. Reference numeral 7 denotes a power supply unit provided on the vehicle body 1 side.
Is connected to a battery 8 mounted on the vehicle body 1.

Reference numeral 9 denotes a power receiving portion provided at a position corresponding to the power feeding portion 7 at the end of the sliding door 3, and the power receiving portion 9 and the lock body 5 are electrically connected. When the sliding door 3 is slid in the closing direction, the power supply unit 7 and the power receiving unit 9 come into contact with each other before the door is completely closed, and the contact causes the power supply unit 7 to pass through the power receiving unit 9 via the power receiving unit 9. Thus, the power of the battery 8 is supplied to the lock body 5. The specific method and timing of this supply will be described later. Reference numeral 10 denotes an opening handle of the sliding door 3.

The structure of the lock body 5 will be described with reference to FIG. Reference numeral 11 denotes a synthetic resin body of the lock body 5,
When the door is closed, a latch 12 that rotates by engaging with the striker 6 is rotated by a shaft 13.
The ratchets 14 which engage with the steps on the outer periphery of 2 to prevent the latch 12 from rotating in the reverse direction are respectively fixed by the shafts 15. The latch 12 is urged in the counterclockwise rotation direction in FIG. 2 by the elastic force of the return spring 16. When the latch 12 is disengaged from the striker 6 (door open state), as shown in FIG.
Is stopped by the elasticity of the return spring 16 until it comes into contact with the rubber stopper 17. Although not shown, the ratchet 14 is urged by a spring in the direction of arrow a.
Is in contact with the outer periphery of

When the latch 12 engages with the striker 6, it rotates clockwise against the elasticity of the return spring 16, and when it rotates to the half-latch position A shown by a dashed line, the claw portion 18 of the ratchet 14 When engaging with the half-engaging step 19 formed on the outer peripheral portion of the latch 12 and rotating to the full-latch position B indicated by the dashed line, the claw 18 engages with the full-engaging step 20 of the latch 12. And the door is closed.

Reference numeral 21 denotes a power transmission mechanism having a safety mechanism, 2
2 is a motor for automatic door closing, 23 is a rotating shaft,
3 is connected to a motor 22 via a power transmission mechanism 21. The safety mechanism provided in the power transmission mechanism 21 is a kind of clutch, which is always “on”, and
Is transmitted to the rotating shaft 23 as it is. When the door opening handle 10 is operated to open the door, the door is turned off in conjunction with the opening operation, whereby the motor 22 and the rotating shaft 23 The turning mechanism 23 is made free by cutting off the transmission mechanism between the two. A base of a rotation arm 24 is fixed to the rotation shaft 23, and a base of a link 25 is rotatably fixed to a tip of the rotation arm 24 by a shaft 26. 2
Reference numeral 7 denotes a roller fixed to the end of the link 25 by a guide pin 28. The end of the guide pin 28 on the body 11 side is slidably engaged with a guide groove 29 formed in the body 11, and when the motor 22 rotates, the rotation arm via the power transmission mechanism 21. When the roller 24 rotates left, the roller 27 moves from the left side to the right side of the body 11 along the guide groove 29.

Reference numeral 30 denotes an engaging leg formed so as to protrude in a radial direction from an outer peripheral edge of the latch 12. When the door is opened, the engaging leg 30 is located at a position away from the guide groove 29. Is rotated to the half latch position A, the engaging leg 30 overlaps with the guide groove 29.
When the latch 12 is in the half-latch position A, the motor 22
When the rotating arm 24 is rotated by supplying power to the
Numeral 7 moves along the guide groove 29 and abuts on the engaging leg 30, whereby the latch 12 is rotated clockwise to forcibly rotate the latch 12 to the full latch position B.

As shown in FIG. 3, the power supply section 7 has a power supply connector 34 and a power supply controller 35 provided with a power supply plus terminal 31, a power supply ground terminal 32, and a power supply signal terminal 33. And the power receiving unit 9
A power receiving side connector 39 provided with a power receiving side plus terminal 36, a power receiving side ground terminal 37, and a power receiving side signal terminal 38, and a power receiving side controller 40 are provided. The power supply side connector 34 and the power reception side connector 39 are respectively mounted so as to be exposed to the outside. When the sliding door 3 is slid in the closing direction, the terminal groups 31 to 33 and the terminal groups 36 to 38 contact each other. The timing of contact between the terminals is set such that the door 3 is slid in the closing direction and the latch 12 of the lock body 5 barely starts engaging with the striker 6 of the vehicle body 1. That is, latch 1
When 2 rotates to the half latch position A, the terminals are surely brought into contact with each other. The latch 12
A state detection sensor 41 (FIG. 3) for detecting the rotational position of the latch 12 is mounted in the vicinity of. The configuration of the state detection sensor 41 is not particularly limited.
, When the latch 12 is between the door-opening position and the half-latch position A, the switch is off when the latch 12 is between the half-latch position A and the full-latch position B, and from the full-latch position B to the surplus rotation end position. Use a microswitch that is turned off when it is in between.

In FIG. 3, reference numeral 42 denotes the power supply side controller 35.
The power supply side control circuit is connected to the battery 8 and is always supplied with power. Power supply side control circuit 4
Numeral 2 applies a positive voltage for contact detection to the signal terminal 33. The detection voltage applied to the signal terminal 33 becomes a level VH (about 12 volts, which is equal to the voltage of the battery 8) when the power supply side connector 34 and the power reception side connector 39 are not in contact with each other (see FIG. 6). When the side connector 34 and the power receiving side connector 39 are in contact with each other, the voltage drops to a level VM (about 6 volts) due to the influence of a detection resistor 46 described later. Reference numeral 43 denotes a power supply transistor connected to the control circuit 42, which is turned off by the control circuit 42 when the power supply side connector 34 and the power reception side connector 39 are not in contact with each other. A relay 44 is energized when the power supply transistor 43 is turned on.
5 is provided between the power supply side plus terminal 31 and the battery 8. When the power supply transistor 43 is turned on, the relay contact 45 is closed, and the plus terminal 31 is connected to the battery 8.

The power receiving signal terminal 38 and the power receiving ground terminal 37 are connected via a contact detecting resistor 46. When the power supply side connector 34 and the power reception side connector 39 come into contact with each other by closing the door 3, the power supply side signal terminal 33 and the power supply side ground terminal 32
An electric loop b connected through the contact detection resistor 46
Is completed, and a current for contact detection of level IH (about 6 mA) flows here. The voltage applied to the power supply side signal terminal 33 drops from the level VH to the level VM (approximately 6 volts) due to the completion of the electric loop b (see FIG. 6).
When the power supply side control circuit 42 detects this voltage change,
The control circuit 42 regards the contact between the connectors, turns on the power supply transistor 43, activates the relay 44, closes the relay contact 45, and connects the power supply side positive terminal 31 to the battery 8. Then, power supply to the power receiving side controller 40 is started. As described above, in the present application, the contact between the two connectors is performed by detecting the electric loop b that is completed when the two connectors actually make contact with each other, so that accurate and reliable detection can be performed, and a switch or the like is not required.

Reference numeral 47 denotes a control circuit of the power receiving side controller 40, which supplies electric power to the motor 22 based on a signal from the state detecting sensor 41 when power is supplied through the power supply side controller 35. By doing
The sliding door 3 is automatically closed by the motor 22. The power receiving side control circuit 47 includes a built-in timer T1, a built-in timer T2, and a built-in timer T3. The built-in timer T1 is activated when the power receiving control circuit 47 is supplied with power. The built-in timer T2 starts when the state detection sensor 41 detects the half-latch state of the latch 12.
The built-in timer T3 starts when the power transmission mechanism 21, the roller 27, and the like return to the initial positions by the reverse rotation operation of the motor 22.

An end transistor 48 connected in parallel with the contact detection resistor 46 is connected to the power receiving side control circuit 47.
When the automatic closing by the motor 22 is completed, the power receiving side control circuit 47 turns on the end transistor 48 for a predetermined time, and after a predetermined time, the operation of the power receiving side control circuit 47 ends. When the end transistor 48 is turned on, a short circuit occurs, and the voltage level of the power supply side signal terminal 33 becomes
It falls sharply to level VL (substantially zero volts) (see FIG. 6). When this voltage fluctuation is detected by the power supply side control circuit 42, the power supply side control circuit 42 regards the completion of the automatic closing by the motor 22, turns off the power supply transistor 43, and stops the power supply to the relay 44. The relay contact 45 is released, whereby the power supply to the power supply side plus terminal 31 is completely shut off. When the power supply side control circuit 42 detects the voltage fluctuation of substantially zero V, the power supply side control circuit 42 switches the circuit of the electric loop b passing through the inside of the power supply side control circuit 42 to reduce the current value flowing through the power supply side signal terminal 33 to about 0.6 mA. The level is reduced to the level IL, and the consumption of the battery 8 is suppressed.

FIG. 4 is a circuit diagram for detecting the rotation state of the motor 22, wherein 49 is a forward contact of the motor 22 and 50 is a reverse contact thereof. These are switched by the power receiving side control circuit 47. When the forward relay contact 49 or the reverse relay contact 50 is turned on, a predetermined current flows through the motor 22 through a loop formed through the pulsating current detection resistor 51, and the motor 22 rotates forward or reverse. I do. At this time, a pulsating current generated due to the rotation of the motor 22 flows through the loop, and the pulsating current passes through the pulsating current detecting resistor 51, so that the pulsating current detecting resistor 51 and the motor 22 It is output as a pulsating voltage to an amplifier circuit 52 connected therebetween, amplified, and sent to a pulsation determining circuit 53. The pulsation determination circuit 53 determines whether the motor 22 is rotating or stopped based on the waveform of the pulsation voltage amplified by the amplification circuit 52, and sends it to the control circuit 47.

[0018]

The present invention is constructed as described above. When the sliding door 3 is in the open state, the latch 12 is stopped by the spring 16 at the open position as shown in FIG. Is off. In the open state, the power supply side connector 3 of the power supply unit 7 in FIG.
4 and the power receiving side connector 39 of the power receiving unit 9 are not in contact with each other, so that the voltage of the power feeding side signal terminal 33 is at the level VH (about 12 volts) as shown in FIG. Is determined to be in the open state, and the power supply transistor 43
Is turned off, the power to the relay 44 is cut off, and the relay contact 4
5 is released to cut off the power supply to the power supply side plus terminal 31. In this state, all the terminals 31 on the power supply side
Since 33 is an open end, the current consumption becomes substantially zero.

In this state, when the sliding door 3 is manually (slightly) slid in the closing direction, the latch 1
Before the terminal 2 rotates to the half-latch position A due to the engagement with the striker 6, the terminal group 31
33 and the terminal groups 36 to 38 of the power receiving side connector 39 are in contact with each other, and an electric loop b is formed to return from the power supply side signal terminal 33 to the power supply side ground terminal 32 via the contact detection resistor 46. A contact detection current of level IH (about 6 mA) flows. At this time, the voltage applied to the power supply side signal terminal 33 drops from the level VH to the level VM (about 6 volts) by the contact detection resistor 46. When the voltage of the power supply side signal terminal 33 drops to the level VM in this manner, the power supply side control circuit 42 detects this voltage drop and regards it as contact between the connectors (step 2 in FIG. 7). Turn on to energize the relay 44, and set the relay contact 4
5 is closed, and the power supply side positive terminal 31 is connected to the battery 8.
To supply necessary power to the control circuit 47 of the power receiving side controller 40 (step 3 in FIG. 7).

When power is supplied, the power receiving side control circuit 47 starts the built-in timer T1 (step 4 in FIG. 7) and checks the position of the latch 12 by the state detection sensor 41 (step 5 in FIG. 7). At this time, the latch 12 has not rotated to the half-latch position A, and the state detection sensor 41 is off. However, since the sliding door 3 slides in the closing direction by inertia, the latch 12 When engaged and rotated, the half latch position A is completed. When the full half latch position A is reached, the state detection sensor 41
Is turned on to start another built-in timer T2 of the control circuit 47 (step 6 in FIG. 7), and the reverse contact 5
0 is turned on to rotate the motor 22 in the reverse direction (Step 7 in FIG. 7).

By the reverse rotation of the motor 22, the power transmission mechanism 21, the rollers 27, etc. are once returned to the initial positions. When each part returns to the initial position, the motor 22 enters the mechanical lock state and stops rotating. The stop of the motor 22 is detected by the pulsation determination circuit 53 (step 8 in FIG. 7), whereby the control circuit 47 activates another built-in timer T3 (step 9 in FIG. 7), and sets the reverse contact 50 for reverse rotation. The motor 22 is rotated normally by turning off the relay contact 49 for normal rotation and turning on the relay 22 (step 10 in FIG. 7).

When the motor 22 rotates forward, the rotating shaft 23
Turning to the left in FIG.
9 while moving to the right from the left position, abuts the engagement leg 30 of the latch 12 located at the half-latch position A, and causes the latch 12 to slightly surpass the full-latch position B by the power of the motor 22. Turn right until it turns. When the latch 12 rotates excessively, the state detection sensor 41 is turned off (step 11 in FIG. 7).
7 restarts the timer T2 (step 12 in FIG. 8),
The motor 22 is reversed (step 13 in FIG. 8). When the roller 27 is separated from the engagement leg 30 of the latch 12 by this reverse rotation, the latch 12 is returned from the excessive rotation position to the full latch position B by the elastic force of the return spring 16, and the ratchet 14 is moved.
Engages with the full engagement step portion 20 to complete the full latch state. In this way, the automatic closing by the motor 22 is performed.

When the reversed motor 22 returns to the initial position and enters the mechanical lock state, the pulsation determination circuit 53 detects this (step 14 in FIG. 8).
Stops the reverse rotation energization of the motor 22, and turns on the end transistor 48 as an operation end signal (step 15 in FIG. 8). When the end transistor 48 is turned on, a short circuit occurs, so that the voltage applied to the electric loop b between the power supply side signal terminal 33 and the power supply side ground terminal 32 changes from the level VM (about 6 volts) to the level VL ( When the power supply side control circuit 42 detects this, the control circuit 42 turns off the power supply transistor 43, stops energization of the relay 44, releases the relay contact 45, and sets the power supply side positive terminal. The power supply to the power receiving side controller 40 via the power supply 31 is cut off. Therefore, in the closed state, the current consumption via the power supply side plus terminal 31 becomes zero. Further, the electric loop b passing through the control circuit 42 is automatically switched to reduce the current flowing to the power supply side signal terminal 33 from the level IH to the level IL (about 0.6 mA), thereby reducing the consumption of the battery 8 in the closed state. To prevent. Note that the voltage of the power supply side signal terminal 33 returns to the level VM when the end transistor 48 is turned off.

When the closed door 3 is opened by the opening handle 10, both connectors are separated from each other and the power supply side signal terminal 33 becomes an open end, and the electric loop b is cut off. The voltage at the terminal 33 rises from the level VM to the level VH, whereby the power supply side control circuit 42
Is regarded as being in an open state, and is in a state of waiting for detection of the electric loop b.

In the above, the pulsating current generated with the rotation of the motor 22 is output by the resistor 51 as a pulsating voltage to the amplifier circuit 52 and amplified. In the present application, since the waveform of the amplified pulsation voltage is monitored by the pulsation determination circuit 53, the waveform during rotation of the motor 22 and the waveform during stoppage of the motor 22 can be easily and accurately distinguished.

If the power supply side positive terminal 31 and the power supply side signal terminal 33 are short-circuited due to some trouble while the power supply side controller 35 is being supplied with power via the power supply side plus terminal 31, The voltage applied to the signal terminal 33 rises from the level VM to the level VH. Since this voltage level VH is the same as the voltage level in the open state,
Accordingly, the control circuit 42 turns off the power supply transistor 43, stops the relay 44, and releases the relay contact 45, thereby completely stopping power supply to the power supply side plus terminal 31. Also, during power feeding, the power supply side plus terminal 3
1 and the power-supply-side ground terminal 32 are short-circuited for some reason, and when all three terminals are short-circuited, the voltage applied to the power-supply-side signal terminal 33 becomes the level VM.
To the level VL. Since this voltage level VL is the same as the voltage level when the end transistor 48 is turned on, the control circuit 42 turns off the power supply transistor 43, stops the relay 44, and releases the relay contact 45. Thereby, the power supply to the power supply side plus terminal 31 is completely stopped.

When the power supply side signal terminal 33 and the power supply side ground terminal 32 are short-circuited due to some trouble while the connectors are separated from each other in the open state, the power supply side signal terminal 33 is hooked. The voltage is changed from level VH to level V
L. However, since the voltage of this level VL is the same as the voltage level at the time when the end transistor 48 is turned on, the control circuit 42 keeps the same state, and then operates without any influence if the short-circuit state is restored. Can be continued.

[0028]

As described above, according to the present invention, the power supply side connector 34 having the power supply side positive terminal 31, the power supply side ground terminal 32 and the power supply side signal terminal 33 on the vehicle body side, and the power receiving side connector on the sliding door side are provided. A power receiving side connector 39 having a power receiving side ground terminal 37, a power receiving side ground terminal 37, and a power receiving side signal terminal 38, and a power supply side control circuit 42 which supplies a detection voltage from the battery 8 to the power supply side signal terminal 33 before the door is closed. When the door is closed and the power supply side connector 34 and the power reception side connector 39 are brought into contact with each other, an electric loop b passing through the power supply side control circuit 42 and the contact detection resistor 46 is provided.
Is formed, and the detection voltage given to the power supply side signal terminal 33 is caused to drop by the contact detection resistor 46,
The power-supply-side control circuit 42 detects the voltage drop and turns on the relay contact 45 to supply power to the power-supply-side control circuit 47 from the power-supply-side positive terminal 31 via the power-receiving-side plus terminal 36, and the motor 22 causes a The latch 12 in the latch state A is rotated to the full latch state B, and when the door is closed in the full latch state B, the termination transistor 48 is turned on by the power receiving side control circuit 47 to short-circuit the electric loop b, thereby setting the electric power supply side control circuit. The detection voltage applied to the power supply-side control circuit 42 is reduced by switching the electric loop b circuit in the power supply side control circuit 42 to reduce the electric loop current, and the relay contact 45 is turned off. The power of the side control circuit 47 is turned off and the motor 22 is turned off.
The power supply method of the automatic door closing mechanism for the sliding door for stopping the power supply is used, so that the contact between the power receiving side connector 39 and the vehicle body side power feeding side connector 34 can be detected without using a switch such as a micro switch. Since the contact between the connectors 39 and 34 can be accurately detected, and the electric loop b is switched to a loop in which only a small current flows after full latching, only a very small current flows when the door is closed. Play. Also, turning on the end transistor 48 to be in a short-circuited state is the same as short-circuiting the power supply-side ground terminal 32 and the power supply-side signal terminal 33 with a tool.
In this application, the power supply side ground terminal 32 and the power supply side signal terminal 33 are used.
Also, there is an effect that it is not necessary to short-circuit. Further, in the power supply method, the electric loop is opened when the door is opened again, and the voltage of the vehicle battery 8 is again supplied to the power supply side signal terminal 33. Because it was
In the opened state, the door returns to its original state, so that there is an effect that the next closing can be continued. The present invention also provides a power supply side plus terminal 31, a power supply side ground terminal 32, and a power supply side signal terminal 3 on the vehicle body side.
And a power-receiving connector 39 having a power-receiving plus terminal 36, a power-receiving-side ground terminal 37, and a power-receiving-side signal terminal 38 on the sliding door side. The detection voltage from the battery 8 is applied to the signal terminal 33 via the power supply side control circuit 42, and when the door is closed and the power supply side connector 34 and the power reception side connector 39 are brought into contact with each other, the power supply side control circuit An electric loop b passing through the contact loop 42 and the contact detection resistor 46 is formed so that a detection current (for example, 6 mA) flows through the electric loop b. The detection current is detected by the power supply side control circuit 42 and the relay contact 45 is turned on. The power supply side plus terminal 31 is supplied with power to the power reception side control circuit 47 via the power reception side plus terminal 36, and the latch 12 in the half latch A state by the motor 22 Is turned to the full latch B state, and when the door is closed to the full latch B state, the termination transistor 48 is turned on by the power receiving side control circuit 47 to switch the electric loop b to reduce the electric loop current, and the power supply side control circuit 42 When the relay contact 45 is turned off, the power supply of the power receiving side control circuit 47 is turned off, the motor 22 is stopped, and when the door is opened, the electric loop current is reduced to zero to know the open state. Since it is a method, it can be controlled by the detection current instead of the detection voltage. Further, the door is closed and the power supply side connector 3 is closed.
4 and the power receiving side connector 39 are brought into contact with each other, the detected current of the electric loop b flowing through the power supply side
As high as 6 mA, the reliability of contact detection is high. When the door is closed, the current is weak (for example, 0.6 mA). When the door is opened, the voltage becomes zero. Therefore, the door can be detected by the current. In the present invention, the power supply side plus terminal 31, the power supply side ground terminal 32, and the power supply side signal terminal 33 of the power supply unit 7 of the vehicle body 1 are connected to the power reception side plus terminal 36 of the power reception unit 9 of the sliding door 3 when the door is open. When there is no contact with the power receiving side ground terminal 37 and the power receiving side signal terminal 38, the power supply unit 7 applies a voltage for contact detection to the power supply side signal terminal 33, and moves the door 3 to a predetermined position in the door closing direction. And the terminals 36 to 38 on the power receiving side become the terminals 31 to 3 on the power feeding side.
3, an electric loop in which a current of level IH flows from the power supply signal terminal 33 to the power supply ground terminal 32 via the power reception signal terminal 38 and the power reception ground terminal 37 is completed, Thereby, the power supply unit 7 supplies power for automatic closing to the power receiving side plus terminal 36 via the power supply side plus terminal 31. When the door 3 is completely closed, the power supply unit 7 flows through the electric loop. When the current is reduced to the level IL and the power supply for automatic closing to the power supply side plus terminal 31 is stopped, and the electric loop is cut off by the opening of the door 3, the power supply unit 7 is switched to the power supply side. The power supply method of the automatic door closing mechanism for the sliding door, which outputs the contact detection voltage to the signal terminal 33 again, particularly, when the electric loop is completed, the power supply unit 7 supplies the power to the power supply unit 7. Since power for automatic closing is supplied to the power receiving side plus terminal 36 via the plus terminal 31, the actual connection between the power supply unit 7 and the power receiving unit 9 can be accurately detected without using a switch or the like. When the door 3 is completely closed, the power supply unit 7 reduces the current flowing through the electric loop to the level IL, so that the current consumption in the closed state can be suppressed low. Therefore, it is possible to accurately determine the door opening state. Further, in the method, the power supply unit 7 may stop the power supply when the voltage applied to the power supply side signal terminal 33 changes during the automatic door power supply. Since the power supply method is used, the power supply is immediately stopped even when any of the terminals is short-circuited during the power supply, so that a special short detection mechanism is not required.

[Brief description of the drawings]

FIG. 1 is an overall conceptual diagram.

FIG. 2 is a longitudinal sectional side view of a lock body.

FIG. 3 is a circuit diagram of a power supply unit and a power reception unit.

FIG. 4 is a circuit diagram for detecting a pulsation waveform.

FIG. 5 is a table showing ON / OFF of a state detection sensor.

FIG. 6 is an operation time chart.

FIG. 7 is a flowchart.

FIG. 8 is a flowchart.

[Explanation of symbols]

1 ... body, 2 ... swing type door, 3 ... slide type door,
4 Guide rail, 5 Lock body, 6 Striker,
7: power supply unit, 8: battery, 9: power receiving unit, 10: door handle, 11: body, 12: latch, 13: axis, 1
4. Ratchet, 15 ... Shaft, 16 ... Return spring, 17 ... Rubber stopper, 18 ... Claw, 19 ... Half engagement step, 2
0: full engagement step, 21: power transmission mechanism, 22: motor, 23: rotating shaft, 24: rotating arm, 25: link,
26 ... shaft, 27 ... roller, 28 ... guide pin, 29 ... guide groove, 30 ... engaging leg, 31 ... power supply side plus terminal, 32
... power supply side ground terminal, 33 ... power supply side signal terminal, 34 ...
Power supply side connector, 35 ... Power supply side controller, 36 ... Power reception side plus terminal, 37 ... Power reception side ground terminal, 38 ... Power reception side signal terminal, 39 ... Power reception side connector, 40 ... Power reception side controller, 41 ... State detection sensor, 42 ... power supply side control circuit, 43 ... power supply transistor, 44 ... relay, 45
... Relay terminal, 46 ... Contact detection resistor, 47 ... Power receiving side control circuit, 48 ... End transistor, 49 ... Forward relay contact, 50 ... Reverse relay contact, 51 ... Pulsating current detection resistor, 52 ... Amplifier circuit, 53 ... Pulsation determination circuit, b: electric loop, A: half latch, B: full latch.

Claims (5)

(57) [Claims] 1. A power supply side connector having a power supply side positive terminal, a power supply side ground terminal, and a power supply side signal terminal on a vehicle body side, and a power reception side plus terminal, a power reception side ground terminal, and a power reception side signal terminal on a sliding door side. A power-receiving-side connector having a power-supply-side connector, and a power-supply-side signal terminal before the door is closed is supplied with a detection voltage from a battery via a power-supply-side control circuit,
When the door is closed and the power supply side connector and the power reception side connector are brought into contact with each other, an electric loop passing through the power supply side control circuit and the contact detection resistor is formed, and the detection voltage given to the power supply side signal terminal is the contact detection. A voltage drop is caused by a resistance, the power supply side control circuit detects the voltage drop, turns on a relay contact, and energizes the power reception side control circuit from the power supply side positive terminal via the power reception side plus terminal to thereby supply a motor. When the latch in the half latch state is rotated to the full latch state, and the door is closed in the full latch state, the termination transistor is turned on by the power receiving side control circuit to short-circuit the electric loop, and the detection voltage applied to the power supply side control circuit is changed. The electric loop circuit in the power supply side control circuit is switched by the drop of the detection voltage to reduce the electric loop current. Power supply method of the sliding door automatic closing mechanism for stopping the motor by a relay contact in the off turned down the power of the power-receiving-side control circuit with eggplant. 2. The power supply method according to claim 1, wherein when the door is opened again, the electric loop is opened, and the voltage of the vehicle battery is applied again to the power supply side signal terminal. 3. A power supply side connector having a power supply side positive terminal, a power supply side ground terminal, and a power supply side signal terminal on a vehicle body side, and a power reception side plus terminal, a power reception side ground terminal, and a power reception side signal terminal on a sliding door side. A power-receiving-side connector having a power-supply-side connector, and a power-supply-side signal terminal before the door is closed is supplied with a detection voltage from a battery via a power-supply-side control circuit,
When the door is closed and the power supply side connector and the power reception side connector are brought into contact with each other, an electric loop passing through the power supply side control circuit and the contact detection resistor is formed so that a detection current flows through the electric loop, The power supply side control circuit detects and turns on a relay contact to energize the power supply side control circuit from the power supply side plus terminal via the power reception side plus terminal to bring the latch in the half latch state by the motor into the full latch state. When the door is rotated and closed in the full latch state, the termination transistor is turned on by the power receiving side control circuit to switch the electric loop to reduce the electric loop current, and the power supply side control circuit turns off the relay contact to control the power receiving side. When the circuit is turned off and the motor is stopped, and the door is opened, the electric loop current is reduced to zero to determine the open state. Power supply method of Ido door for automatic door closing mechanism. When the door is open, the power supply side plus terminal 31, the power supply side ground terminal 32, and the power supply side signal terminal 33 of the power supply unit 7 of the vehicle body 1 are connected to the power reception side plus terminal 36 of the power reception unit 9 of the sliding door 3. When the power supply unit 7 is separated from the power receiving side ground terminal 37 and the power receiving side signal terminal 38, the power supply unit 7 applies a voltage for contact detection to the power supply side signal terminal 33, and moves the door 3 to a predetermined position in the door closing direction. And the terminals 36 to 38 on the power receiving side become the terminals 31 on the power feeding side.
33, the power supply side signal terminals 33
An electric loop in which a current of level IH flows from the power supply-side signal terminal 38 and the power-supply-side ground terminal 37 to the power-supply-side ground terminal 32 through the power-supply-side signal terminal 38 and the power-supply-side ground terminal 32 is completed. A power supply for automatic closing is supplied to the power receiving side plus terminal 36 via 31. When the door 3 is completely closed, the power supply unit 7 reduces the current flowing through the electric loop from a level IH to a level IL, and When the power supply for automatic closing to the power supply side plus terminal 31 is stopped, and the electric loop is cut by opening the door 3,
A power supply method for an automatic door closing mechanism for a sliding door, wherein the power supply unit 7 outputs the contact detection voltage to the power supply side signal terminal 33 again. 5. The automatic door closing mechanism for a sliding door according to claim 4, wherein when the voltage applied to the power supply side signal terminal 33 changes during the power supply for the automatic door closing, the power supply unit 7 stops the power supply. Power supply method.