JPH06546Y2 - Power window device for vehicle - Google Patents

Description

[Detailed description of the device] [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power window device for a vehicle equipped with a sashless door, which automatically lowers the window glass of the door to improve the occupant's entry / exitability when the door is opened.

[Prior art]

Conventionally, a power window device of this type is known, for example, as disclosed in JP-A-57-108381. In this power window device, a series circuit of a first switch (door switch) that operates a window regulator motor to lower the door glass when the door is opened and a timer circuit is connected in parallel to the lowering regulator switch, and the lowering switch is raised. The regulator switch is connected in parallel with a series circuit of a second switch that raises the door glass when the door is closed, and a danger prevention timer that shuts off the circuit for a predetermined time. It is intended to prevent the entrapment.

[Problems to be solved by the device]

By the way, in the conventional power window device configured as described above, the descending amount of the door glass for improving the entry / exiting property when the door is opened is determined by the timer time period set by the timer circuit. If voltage fluctuations or fluctuations in the friction between the curved door glass and the weather strip occur, the opening of the door glass becomes unstable, and in an extreme case, there is a problem that good entry / exitability cannot be obtained. . The present invention has been made to solve the above-mentioned problems, and a vehicle power window capable of stably performing the descending operation of the door glass for improving the entry / exiting property regardless of voltage fluctuations and the like. The purpose is to provide a device.

[Means for solving problems]

In order to achieve the above object, the present invention provides a vehicle power for automatically lowering a predetermined amount of door glass by an output signal of a door switch that detects the opening and closing of a sashless door to improve entry / exitability. In a window device, a pulse generator that generates a pulse signal in conjunction with a power window motor, window opening / closing amount detection means for counting the pulse signals to detect the opening / closing amount of the door glass, and the opening / closing position of the door glass Alternatively, a window opening adjustment switch that can arbitrarily set the up-and-down change amount, a switch operation amount means that detects the operation amount of the window opening adjustment switch, and the window opening and closing amount detection means according to the output signal of the door switch. It is characterized in that an operation mode determining means for lowering the door glass is provided until it coincides with the switch operation amount detecting means.

[Action]

By adopting the above means, the operation mode determination means composed of the microcomputer in response to the ON signal of the door switch when the door is opened outputs the down signal of the door glass to rotationally drive the power window motor in the down direction to generate the pulse. When the opening / closing amount of the door glass obtained by counting the pulse signals fed back from the container reaches the opening / closing amount set by the window opening adjustment switch, the rotation driving of the power window motor is stopped.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a vehicle power window device, and FIG. 2 is a flow chart diagram showing its operation. In FIG. 1, reference numeral 1 is a door glass made of curved glass provided on a sashless door, reference numeral 2 is an elevating mechanism for moving the door glass 1 up and down, and reference numeral 3 is a motor for a power window. Raise and lower the glass 1. Reference numeral 4 is a pulse generator that works in conjunction with the power window motor 3, and generates a pulse signal in response to the up and down movement of the door glass 1. Reference numeral 5 denotes a forward / reverse rotation unit formed of a relay circuit, which supplies a forward / reverse rotation power supply to the power window motor 3 in response to an up / down instruction. Reference numeral 6 is a door switch, which is off when the door is closed and on when the door is open. Reference numeral 7 is a binary switch or a window opening adjustment switch composed of a variable resistor or the like, which sets the descending amount or the descending position (window opening) of the door glass 1 when the door is opened in order to improve the entry / exitability. Reference numeral 10 is a power window control circuit composed of a microcomputer, which is equipped with a normal power window mechanism as well as a boarding / alighting improvement system of the present invention. Sign
Reference numeral 11 denotes a switch operation detecting means, which determines the raising / lowering operation of the door glass 1 based on the output level of the door switch 6. Code 12
Is a switch operation amount detecting means for obtaining and outputting the operation amount of the window opening adjustment switch 7, that is, the set value of the lowered position (opening) of the door glass 1. Reference numeral 13 is a window opening / closing amount detecting means, and a pulse signal generated from the pulse generator 4 according to the rotation of the motor 3 for the power window, that is, the ascending / descending amount of the door glass 1, is set to zero when fully closed, and is counted up when descending. When rising, it counts down and detects the opening / closing amount of the door glass (window opening). Reference numeral 14 is an operation mode determination means, which determines the operation mode by each signal, and depending on the determination result, the rising mode unit 15 or the stop mode unit 16, the falling mode unit 17, and the output mode unit 18 for each mode. A signal is applied to the forward / reverse rotation section 5 to control the forward / reverse rotation driving operation of the power window motor 3 to raise / lower the door glass 1. Next, the operation of one embodiment configured as described above
This will be described with reference to the flowchart in the figure. First, the amount by which the door glass 1 is automatically lowered when the door is opened, that is, the window opening degree, is set in advance by the window opening adjustment switch 7 in order to improve the entry / exitability (step S101), and the operation amount (window opening degree) is set. It is input to the operation mode determination means 14. And when the vehicle stops and the passenger opens the door to get off,
The door switch 6 is turned on (step S102), and the switch operation detecting means 11 outputs a door glass descending signal for improving entry / exit. At this time, when the door glass 1 is in the closed position, the operation mode determination means 14 determines that the door glass descending mode is selected (step S103), and the descending command is sent to the forward / reverse rotation unit 5 via the descending mode unit 17 and the output unit 18. Then, the normal rotation power is supplied to the power window motor 3 to rotate and drive it in the descending direction, and the elevating mechanism 2 descends the door glass 1. A pulse signal is generated from the pulse generator 4 in response to the lowering of the door glass 1, and the window opening / closing amount detecting means 13 counts up to detect the window opening / closing amount, that is, the window opening (step
S104), and feeds it back to the operation mode determination means 14.
When the fed back window opening reaches the window opening preset by the window opening adjustment switch 7 (step S105), the operation mode determination means 14 determines the stop mode (step S106), and the stop mode is set. Section 16, output section 18
The rotation drive of the motor 3 for the power window is stopped via the, and the door glass 1 is surely lowered to the set opening degree,
Improve boarding and alighting properties. After that, when the passenger gets off the vehicle and closes the door, the door switch 6 is turned off (step S102), and in the case of NO, the switch operation detection means 11 outputs a door glass rising command, so the operation mode determination means 14 causes the door glass to operate. The rising mode is determined (step S107), the rising mode unit 15, the output unit 18,
The power window motor 3 is rotated in the reverse direction, that is, in the ascending direction via the forward / reverse rotation unit 5. As a result, the door glass 1 rises, the pulse signal from the pulse generator 4 is counted down by the window opening / closing amount detection means 13, and when the value becomes zero, the operation mode determination means 14 determines that it is fully closed (step S108). The rotation driving of the power window motor 3 is stopped via the stop mode unit 16 and the output unit 18. In this way, since the actual amount of opening and closing of the window is fed back and the descending amount of the door glass 1 for improving the entry / exiting property is controlled so as to be the set opening degree, the voltage fluctuation of the vehicle-mounted power supply and the curved glass can be controlled as in the conventional case. The door glass 1 is securely moved up to a preset window opening by the window opening adjustment switch 7 to improve the door opening / closing property without being affected by the frictional resistance between the door glass 1 and the weather strip. And it can be lowered with a stable operation. Although the door switch 6 is used to determine when the vehicle is getting off in the above embodiment, it may be determined using a passive belt switch or the like.

[Effect of device]

As described above, according to the present invention, the actual window opening is detected and fed back, and based on this, the door glass is lowered to the preset window opening. It is possible to reliably and stably lower the door glass for the purpose of being free from the influence of voltage fluctuation and frictional variation as in the conventional case.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention,
FIG. 1 is a block diagram showing the overall configuration of a vehicle power window device, and FIG. 2 is a flow chart diagram showing its operation. 1 ... Door glass, 3 ... Power window motor, 4
... pulse generator, 6 ... door switch, 7 ... window opening adjustment switch, 10 ... power window control circuit, 11 ... switch operation detecting means, 13 ... window opening / closing amount detecting means, 14 ... operation mode determining means.

Claims (1)

[Scope of utility model registration request] 1. A power window device for a vehicle, wherein when a sashless door is opened, an output signal of a door switch that detects the opening and closing of the door automatically lowers a door glass by a predetermined amount to improve entry / exitability. Generator that generates a pulse signal in conjunction with a motor for driving, a window opening / closing amount detection means that counts the pulse signal to detect the opening / closing amount of the door glass, and the opening / closing position of the door glass or the amount of vertical change A window opening adjusting switch that can be set to a switch opening, a switch operation amount detecting means for detecting an operation amount of the window opening adjusting switch, the window opening / closing amount detecting means and the switch operation amount detecting means according to an output signal of the door switch. A power window device for a vehicle, comprising: an operation mode determination means for lowering the door glass until the two coincide with.