JPH01152980A - Power window device - Google Patents

Abstract

PURPOSE:To reduce the number of lead wires, by outputting signals having such levels as correspond to respective operations of a switch for lifting/lowering operation of a door glass. CONSTITUTION:A level setting means 2 outputs a level being set corresponding to respective operations of a door glass lifting/lowering operation switch 1. A judging means 3 judges respective operations of the door glass lifting/lowering switch 1 based on the level and drives a door glass drive motor 6 correspondingly. Consequently, the number of lead wires connecting a lifting/lowering switch central operating section and respective door glass drive motors can be reduced.

Description

[Detailed description of the invention] [Purpose of the invention]

(Industrial Application Field) The present invention relates to a power window device that raises and lowers a door glass, which is movably provided on each door of a vehicle, by rotation of a door glass drive motor. (Prior Art) This type of power window device has conventionally had various configurations. A lift switch centralized operation unit is provided on the armrest of the driver's door, and includes a switch and a door glass lift/lower operation switch for the passenger door that raises and lowers the door glass for the door of the passenger seat (i.e., passenger seat and rear seat). Each door is provided with a door glass drive motor for raising and lowering the glass, and each door glass lift operation switch of the lift switch centralized operation unit is connected to each door glass drive motor by a dedicated lead wire. There was a power window device. In this case, each door glass lift operation switch and each door glass drive motor are connected with dedicated lead wires, so two lead wires are required for one door glass drive motor, and wiring is required. In addition, since the drive current of the door glass drive motor flows through each lead wire,
As the distance between each wire became longer, a voltage drop occurred at that point, making it necessary to make the wires thicker. Therefore, in some recent power window devices, the lifting and lowering operations of each lifting switch in the lifting switch centralized operation section are
A transmitting device C that digitizes address signals and data signals is provided in the lift switch central operation section, and receives the address signal and data signal of the transmitting IC, and converts analog drive signals to drive each door glass drive motor. A power window device has been developed in which a receiving IC for conversion is installed in each door, and the transmitting IC and receiving IC are connected by a communication lead wire (1982).
Service Bulletin No. 578 published by Nissan Motor Co., Ltd. on June 1, 2018
No. JD-page 32). In a power window device with such a configuration, the address communication lead wire that digitizes the address signal and sends it, and the data communication lead wire that digitizes the data signal and sends it, are used to control all the lifting operations of the lift switch centralized operation section. This has the advantage of reducing the number of lead wires for transmitting information. Also, since the current flowing through the 1 communication lead wire is weak,
Another advantage is that even if the wiring distance of each lead wire becomes long, a voltage drop does not occur at that portion. (Problem to be Solved by the Invention) However, in the power window device described above, the transmitting IC converts the lifting/lowering operation of each lifting operation switch into an address signal and a data signal as digital signals, and the receiving IC converts the lifting/lowering operation of each lifting operation switch into an address signal and a data signal as digital signals.
C converts the digital signal into a drive signal that drives each door glass drive motor as an analog signal,
The structure of the transmitting IC and the receiving IC becomes complicated, and the manufacturing cost becomes too high, increasing the cost of the power window device, and there is a problem that it is not suitable for widely used vehicle types. (Objective of the invention) Therefore, the present invention aims to
The purpose of this invention is to solve the problems that conventional power window devices have by reducing the number of lead wires connecting the lift switch 9 central operation unit and each door glass drive motor.

[Structure of the invention]

(Means for Solving the Problems) The power window device according to the present invention includes a door glass lift operation switch 1, as shown in the functional block diagram of FIG.
level value setting means 2 for setting and outputting a level value corresponding to each operation in response to each operation; Discrimination means 3 for discriminating each operation
a control means 5 for controlling the raising and lowering of the door glass 4 in response to a discrimination signal from the discrimination means 3; and a control means 5 for driving the door glass in response to a door glass raising drive signal or a door glass lowering drive signal from the control means 5. The present invention is characterized in that the above-mentioned problems of the conventional power window device are solved by having a configuration including a driving means 7 for driving a motor. (Function) In the power window device according to the present invention, as shown in FIG. It becomes possible to convert each operation of the door glass raising/lowering operation switch 1 into a respective level value and send it to at least one lead wire. Then, determination means 3
Since each operation of the door glass raising/lowering operation switch 1 is determined based on the level value, the door glass driving motor 6 is driven in accordance with each operation of the door glass raising/lowering operation switch 1. Therefore, by providing the level value setting means 2 on the side of the door glass raising/lowering operation switch 1 and the discriminating means 3 on the side of the door glass drive motor 6, the door glass can be adjusted by simply connecting them with at least one lead wire. The door glass 4 can be raised and lowered in accordance with the raising and lowering operation of the raising and lowering operation switch 1. Note that even when a plurality of door glasses 4 are raised and lowered, it is possible to send a level value corresponding to each operation of each door glass raising/lowering operation switch 1 to at least one lead wire. (Example) Hereinafter, the present invention will be explained based on the drawings. <Embodiment 1> FIG. 2 is a diagram showing an embodiment of a power window device according to the present invention. FIG. 2 is an explanatory diagram showing the circuit configuration of the power window device. In FIG. 2, reference numeral 10 denotes an elevator switch centralized operation unit provided on the armrest of the driver's door (not shown). This elevator switch centralized operation unit 10 includes an operation panel 11 for raising and lowering a door glass (corresponding to the door glass 4 shown in FIG. 1) provided on each door so that it can be raised and lowered; It is provided with a level value setting circuit 12 (corresponding to the level value setting means 2 shown in FIG. 1) which outputs a level value set in response to an operation. The operation panel 11 includes a driver's side door glass up/down operation switch 15 (corresponding to the door glass up/down operation switch 1 shown in FIG. 1) that raises and lowers the driver's side door glass, and an assistant that raises and lowers the passenger side door glass. A seat-side door glass lift operation switch 16 (corresponding to the door glass lift operation switch 1 shown in FIG. 1), and a right rear seat side door glass lift operation switch 17 (corresponding to the door glass lift operation switch 1 shown in FIG. 1) that raises and lowers the right rear seat door glass. A left rear seat side door glass lift operation switch 18 (corresponding to the door glass lift operation switch 1 shown in FIG. 1) is provided for raising and lowering the left rear seat side door glass (corresponding to the lift operation switch 1). Each of the door glass lift operation switches 15 to 18 has a rising side contact 15a to 18a, a falling side contact 15b to 18b, and both contacts 15 in conjunction with the operation of a switch knob (not shown).
Movable contacts 15c to 18c selectively abut on a to 18a and 15b to 18b. The level value setting circuit 12 sets the level value of the output voltage corresponding to each operation of the door glass raising/lowering operation switches 15 to 18, for example, in IV increments. This level setting circuit 12 includes each contact 15JL.
~18a, 15b ~Resistors R1~R8 connected to ~18b
and a constant voltage circuit 2 that adjusts the voltage of the power supply 19 to a predetermined voltage.
0, and a resistor RIO connected to the constant voltage circuit 20. The resistors R1 to R8 are the resistors RI
A constant voltage circuit 20 is formed by the resistor RIG and the resistor RIG, which are each connected in series with O and correspond to the operation of any one of the door glass lift operation switches 15 to 18.
The predetermined voltage of is adjusted to the set level value. The output voltage at this time is generated at the connection point a as a level value in lv increments, for example, for each operation. 30 is a controller that raises and lowers each door glass (not shown) according to each level value inputted from the level setting circuit 12. This controller 30 includes a discrimination circuit 31 (
(corresponding to the discriminating means 3 shown in FIG. 1), and a motor 32 for driving the driver's side door glass provided in each door. Passenger side door glass drive motor 33. A drive circuit 36 (driving means shown in FIG. 1) that drives the right rear seat side door glass drive motor 34 and the left rear seat door glass drive motor 35 (corresponding to the door glass drive motor 6 shown in FIG. 1), respectively. 7), and a control circuit 37 (corresponding to control circuit 5 shown in FIG. ), and a constant voltage circuit 38 that adjusts the voltage of the power supply 19 to a predetermined voltage and supplies it to each circuit 31, 36, 37. The control circuit 37 uses a logic circuit configured by combining an AND circuit, an OR circuit, a NAND circuit, a NOR circuit, etc., or a microcomputer with a built-in control program number. The discrimination circuit 31 includes an O which discriminates the level value corresponding to each operation of the door glass raising/lowering operation switches 15 to 18 and outputs a discrimination signal of "1'" or "0P".
It includes P amplifiers OFI to OP8, and resistors R20 to R35 that divide and adjust the predetermined voltage of the constant voltage circuit 38 and supply respective reference voltages to the OF amplifiers OFI to OP8. Note that the op amplifiers OFI to OP8 have level value input terminals connected in parallel, and level values are applied to the op amplifiers OFI to OP8 with the connection point S as the center. The drive circuit 36 includes a driver's side door glass driving circuit 40 that drives the driver's side door glass driving motor 32 in the upward and downward directions, and a driver's side door glass driving circuit 40 that drives the passenger side door glass driving motor 33 in the upward and downward directions. a circuit 41 for driving the door glass on the passenger seat side that drives the door glass in the direction of the passenger seat; a circuit 42 for driving the door glass on the right rear seat side that drives the right rear seat door glass drive motor 34 in the upward and downward directions; It includes a left rear seat side door glass drive circuit 43 that drives the side door glass drive motor 35 in the upward and downward directions. The driver's side door glass driving circuit 40 includes a driver's door glass raising switching section 40a that operates in response to a driver's side door glass raising signal from the control circuit 37, and a driver's side door glass lifting driving circuit 40a. The relay coil RLla of the rising relay RLI is energized in accordance with the operation of the switching unit 40a, and the energization of this relay coil RL1a causes the power supply side contact RL to be connected from the ground side contact RLI b to the power supply side contact RL.
a movable contact piece RLI d that is attracted to the driver's seat Ic; The relay coil RL2a of the lowering relay RL2 is energized according to the operation of the side door glass lowering drive switching unit 40b, and the movable coil is attracted from the ground side contact RL2b to the power supply side contact RL2c by the excitation of this relay coil RL2a. A contact piece RL2d is provided. The passenger side door glass driving circuit 41 includes a passenger side door glass raising driving switching section 41a that operates in response to a passenger side door glass raising signal from the control circuit 37.
The relay coil RL3a of the lift relay RL3 is energized in response to the operation of the passenger door glass lift driving switching unit 4ia, and the relay coil RL3a is energized to cause the ground side contact RL3b to be moved from the power source side contact RL3.
and a movable contact RL3d that is attracted to c.
A switching section 41b for driving passenger door glass lowering operates in response to the passenger door glass lowering signal of the control circuit 37, and is excited in response to the operation of this switching section 41b for lowering driving passenger door glass. Relay coil RL4a of descending relay RL4 and this relay coil R
a movable contact piece RL4d that is attracted from the ground side contact RL4b to the power supply contact RL4c by the excitation of L4a, the relay coil RL3a and the relay coil RL4a are manually excited, and the passenger seat is provided on the indoor side of the passenger door. A manual lift operation switch 41c is provided. The right rear seat side door glass driving circuit 42 includes a right rear seat side door glass raising driving switching section 42a that operates in response to a right rear seat side door glass raising signal from the control circuit 37, and a right rear seat side door glass raising driving switching section 42a. The relay coil RL5a of the lift relay RL5 is energized in response to the operation of the side door glass lift drive switching unit 42a, and the energization of this relay coil RL5a attracts air from the ground side contact RL5b to the power supply side contact RL5c. a movable contact piece RL5d,
and a right rear seat side door glass lowering drive switching section 42b that operates in response to the right rear seat door glass lowering signal of the control circuit 37, and an operation of this right rear seat side door glass lowering driving switching section 42b. The relay coil RL6a of the descending relay RL6 is energized according to the relay coil RL6a, and the movable contact piece RL6d is attracted from the ground side contact RL6b to the power side contact RL6c by the excitation of the relay coil RL6a. A right rear seat manual lift operation switch 42c is provided for manually exciting the relay coil RL6a and provided on the indoor side of the right rear seat door. The left rear seat side door glass driving circuit 43 includes a left rear seat side door glass raising driving switching section 43a that operates in response to a left rear seat side door glass raising signal from the control circuit 37, and a left rear seat side door glass raising driving switching section 43a. The relay coil RL7a of the lifting relay RL7, which is excited in accordance with the operation of the side door glass lifting driving switching unit 43a, and this relay coil R
A movable contact piece RL7d that is attracted from the ground side contact RL7b to the power side contact RL7c by the excitation of Lza, and is operated in response to the left rear seat door glass lowering signal of the control circuit 37. The door glass lowering drive switching unit 43b, the relay coil RL8a of the lowering relay RL8 which is energized in accordance with the operation of the door glass lowering drive switching unit 43b on the left rear seat side, and the earth side due to the excitation of this relay coil RL8a. Contact RL
Movable contact piece RL drawn from 8b to power supply side contact RL8c
8d, and manually excites the relay coil RLZa and the relay coil RL8a, and is provided on the indoor side of the left rear seat door.
It is equipped with 3c. Note that 45 is an ignition switch. Next, the operation of the power window device configured as described above will be explained. First, when any one of the door glass lifting operation switches 15 to 18 of the elevator switch centralized operation unit 10 is operated, one of the resistors R1 to R8 corresponding to the operation becomes conductive, and the connection point a is connected to the resistor corresponding to the operation. A level value is generated. To explain this state using, for example, the case where the driver's side door glass elevating operation switch 15 is operated to the upward side, the power supply 19 → ignition switch 45 (ON state) → the level at the elevating switch centralized operation section 10 Constant voltage circuit 20 of setting circuit 12 → resistor RIO → connection point a → resistor R1 → rising side contact 15a of driver's side door glass lift operation switch 15 on operation panel 11 → movable contact 15c
→A ground circuit is established, and a level value adjusted by voltage division by resistors RIG and R1 is generated at connection point a. The level value is then input to the discrimination circuit 31 of the controller 30 via the lead wire A. That is, when the level value when the driver's side door glass elevating operation switch 15 is operated to the upward side occurs at the connection point of the discrimination circuit 31, that level value is applied to each OP amplifier O.
The OF amplifier OPI, which is input to each of FI to OP8 and which determines the raising operation of the driver's side door glass raising/lowering operation switch 15, outputs a determination signal from 0'' to 0° according to its level value.
Change it to l゛′. At this time, other OF amplifiers OF2~O
In order to maintain the discrimination signal of "θ", P8 is connected to the discrimination circuit 31.
determines whether the driver's side door glass raising/lowering operation switch 15 has been raised. Then, the control circuit 37 operates the driver's side door glass lifting switching section 40a of the driver's side door glass driving circuit 40 in the drive circuit 36 based on the determination result of the determining circuit 31. That is, the power supply 19 → the power switch 45 (
ON state] → Relay coil RL1a of the lifting relay RLI in the driver's side door glass lifting drive circuit 40 → Driver's side door glass lifting driving switching unit 40a (O
N state)→A ground circuit is established and the relay coil RLI
Excite a. Then, by excitation of the relay coil RL1a, the movable contact piece RL1d is attracted and switched from the ground side contact RLIb to the power source side contact RL1c. Therefore, power supply 19 → ignition switch 45 (ON state) → power supply side contact RLI c of lifting relay RLI in driver's side door glass drive circuit 40 → movable contact RL1
d → driver's side door glass drive motor 32 → movable contact piece RL2b of lowering relay RL2 in driver's side door glass drive circuit 40 → ground circuit is established, and driver's side door glass drive motor 32 rises. direction, and the door glass is raised via a window regulator (not shown). Here, only the raising operation of the driver's side door glass raising/lowering operation switch 15 has been explained as an example, but the level values corresponding to the raising and lowering operations of each of the door glass raising/lowering operation switches 15 to 18 are explained according to each operation. The electric currents can be passed through the lead wires A, respectively, and the motors 32, 33, 34, and 35 can be driven respectively. Therefore, each door glass lift operation switch 15 to 18
The corresponding level value can be sent to the controller 30 via the single lead wire A according to each operation.
It is possible to reduce the number of lead wires compared to the conventional method. Further, in the internal structure of the level value setting circuit 12 for transmission and the discrimination circuit 31 for reception, resistors R1 to R8, RIO and OP amplifiers OFI to OP8. Since the resistors R20 to R35 are used, the structure can be simplified compared to those using conventional communication ICs, and manufacturing costs can be reduced. <Embodiment 2> FIG. 3 is a diagram showing another embodiment of the power window device according to the present invention, in which the same functional parts as the power window device of FIG. 2 are given the same reference numerals. In this second embodiment, a movable contact piece 15 is attached to each door glass elevating operation switch 15 to 18 of the elevating switch centralized operation unit 10.
The level value setting circuit 1 includes neutral contacts 15d to 18d for detecting the neutral (motor stop) positions of c to 18c, respectively.
2 is provided with a selection circuit 50 that selects resistors R50 to R61 that detect each position and output a level value set corresponding to each position, and outputs from the level value setting circuit 12 to the discrimination circuit 31. Determine the level value. p amplifiers 0P10 to 0P21 and the OP amplifiers 0P10 to 0P
21 are provided with resistors R70 to R3 for supplying a reference voltage. Note that the selection circuit 50 includes an AND circuit and an OR circuit.
A logic circuit that combines circuits, NAND circuits, NOR circuits, etc., and a microcomputer with a built-in control program are used. In this second embodiment, when a plurality of door glass raising/lowering operation switches 15 to 18 are operated, the selection circuit 50 selects one of the resistors R50 to R61 according to the operation, and reads a plurality of level values. It becomes possible to flow simultaneously through line A.

【Effect of the invention】

As described above, the power window device according to the present invention includes a level value setting means for setting and outputting a level value corresponding to each operation in response to each operation of the door glass raising/lowering operation switch; a discriminating means for discriminating each operation of the door glass raising/lowering operation switch based on each level value output from the level value setting means; a control means for controlling the raising and lowering of the door glass in accordance with a discrimination signal from the discriminating means; and a drive means for driving a door glass drive motor in response to a door glass raising drive signal or a door glass lowering drive signal from the control means. The door glass can be raised and lowered in response to the raising and lowering operations of the door glass raising and lowering operation switch by simply providing the determination means on the operation switch side and the door glass drive motor side, and connecting them with at least one wooden lead wire. Therefore, the number of lead wires used can be reduced compared to the conventional method. Further, the door glass can be raised or lowered by transmitting and receiving a level value between the level value setting means and the determining means in accordance with the raising and lowering operation of the door glass raising/lowering operation switch between the level value setting means and the determining means. Transmission and reception are possible even with the use of level value setting means and discrimination means with a simple structure, and this is an advantage in that it is possible to provide a power window device at a lower cost than that using a conventional communication IC. You can get the same effect.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram showing the configuration of an embodiment of a power window device according to the present invention, FIG. 2 is an explanatory diagram showing a circuit configuration of an embodiment of the power window device according to the invention, and FIG. FIG. 3 is an explanatory diagram showing a circuit configuration according to another embodiment of the power window device according to the present invention. DESCRIPTION OF SYMBOLS 1...Door glass raising/lowering operation switch, 2...Level value setting means, 3...1 separate means, 4...Door glass, 5...Control means, 6...Door glass drive motor , -ta, 7... Driving means.

Claims (5)

[Claims] (1) A level value setting means for setting and outputting a level value corresponding to each operation in response to each operation of a door glass raising/lowering operation switch, and a level value setting means for setting and outputting a level value corresponding to each operation, and a door a discriminating means for discriminating each operation of the glass elevating operation switch; a control means for controlling the elevating and lowering of the door glass in accordance with a discriminating signal from the discriminating means;
A power window device comprising: drive means for driving a door glass drive motor in response to a door glass raising drive signal or a door glass lowering drive signal from the control means. (2) The level value setting means sets and outputs a level value corresponding to each operation of a plurality of door glass raising/lowering operation switches in response to each operation. The power window device described in (1). (3) The level value setting means sets and outputs a level value corresponding to each operation of raising/lowering or raising/lowering/stopping the door glass raising/lowering operation switch. The power window device according to item (1) or item (2). (4) The discriminating means discriminates each operation of the plurality of door glass elevating operation switches based on a level value set corresponding to each operation of the plurality of door glass elevating operation switches. A power window device according to claim (2). (5) The power window device according to claim (2), wherein the control means controls the raising and lowering of a plurality of door glasses.