KR100320704B1 - Vehicle power windows controller - Google Patents

Abstract

The present invention provides a first lift and lower switch (SW1, SW2) for opening and closing the first window of the vehicle, a second lift and lower switch (SW3, SW4) for opening and closing the first window, and the first or second Signals input through the rising and falling switches are removed through circuits such as resistors R10 to R18 and condensers C7 to C9, and the first falling switch SW2 and the second rising switch in accordance with the window-opening mode. The output terminal of the switch SW3 is an input unit 20 connected by a jump line and a microcomputer 30 that receives a window opening / closing command through the input unit and analyzes the window driving control signal and outputs a window driving control signal in an auto or one-touch manner. And, in accordance with the output signal of the micom is operated by supplying power to the window motor through a relay to rotate forward, the drive unit 40 for raising the window in an automatic or one-touch manner, and the output signal of the micom It is operated according to the power supply to the window motor through the relay to rotate in reverse, the lower drive circuit unit 50 for lowering the window in an automatic or one-touch manner, and outputs through one end of the relay installed in the rising and falling drive circuit unit It is equipped with an overload detector to control the window according to whether or not the window is completely opened after detecting the over current by detecting power supply. Provides a switchgear of the automotive power window that can satisfy all.

Description

Switchgear of car power window {VEHICLE POWER WINDOWS CONTROLLER}

The present invention relates to an automobile power window, and more particularly, to an apparatus for opening and closing an automobile power window that can satisfy various operation modes and specifications of a power window in one circuit configuration.

As the industry develops and becomes more automated, people seek convenience, and the logic of opening and closing the window by driving the motor is different from the manual type of opening and closing the window manually by rotating the handle installed inside the door even in the window of the car door. There is a trend towards becoming a (logic) type.

Even in this logic type, the motor operates only while the switch is pressed, so that the window moves up or down.In the one-touch power window method, the power is raised to the upper end and locked or lowered to the lower end just by touching the switch. The trend is changing.

For convenience, in the present invention, all windows opened and closed by driving of a motor are collectively called a power window.

Conventionally, the technology related to the opening and closing device of the automotive power window has been developed, but the circuit is configured separately for each function has a problem that the circuit is complicated and the manufacturing cost is expensive.

That is, there are four types of switchgear specifications of the vehicle power window according to the configuration and operation method of the switch, which are different depending on the model of the vehicle and the country of application.

Accordingly, an object of the present invention is to provide an opening and closing device for a vehicle power window that can satisfy the different specifications of the vehicle power window by changing only the arrangement of the terminals of the input unit in one circuit, the circuit is simple and the manufacturing cost can be lowered. have.

1 is a circuit diagram showing a window opening and closing apparatus according to the present invention,

2 is a characteristic diagram illustrating window opening and closing operations for each specification according to the operation of the switch of FIG. 1.

* Explanation of symbols for main parts of the drawings

10: switch, 20: input part, 30: microcomputer, 40: rising driver, 50: falling driver, 60: overload detection part, 70: constant voltage circuit part, B +: power supply, IC1: constant voltage IC, IC2: comparative IC, J: Jump line, M: open / close motor, R0: overload detection resistor, SW1: first up switch, SW2: first down switch, SW3: second up switch, SW4: second down switch.

Technical means of the present invention for achieving the above object, the first rise and fall switch (SW1, SW2) for opening and closing the first power window of the vehicle; Second rising and falling switches SW3 and SW4 for opening and closing the first power window; The signal input through the first or second rising and falling switches is removed through circuits such as the resistors R10 to R18 and the capacitors C7 to C9, and the first falling switch SW2 is set according to the window opening and closing mode. ) And an input unit 20 connecting the output terminal of the second rising switch SW3 with a jump line; A microcomputer 30 for receiving a window opening / closing command through the input unit and analyzing the window opening / closing command and outputting a window driving control signal in an auto or one-touch manner in a preset mode; A rising drive circuit unit 40 which is operated according to the output signal of the microcomputer to supply power to the window motor through a relay and rotate forward, and raise the power window in an auto or one-touch manner; A falling driving circuit unit 50 which is operated according to the output signal of the microcomputer and supplies power to the window motor through a relay to reverse rotation, and lowers the power window in an automatic or one-touch manner; And an overload detecting unit 60 for receiving an electric power output through one end of a relay installed in the rising and falling driving circuit unit and detecting an overcurrent and outputting it to a microcomputer to control the power window according to whether the power window is completely opened or closed. Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a circuit diagram of a switchgear according to the present invention, and FIG. First, referring to the basic configuration of the present invention, the signal of the switch unit 10 composed of a plurality of sets of the up and down switches SW1 and SW2 (SW3 and SW4) is a resistor (R10 to R18) and a capacitor ( The inputs 20 of C7 to C9 are connected to the inputs of the microcomputers 30, respectively, and the outputs of the microcomputers 30 are emitter grounded transistors Q1 and Q2 of the rising and falling driving units 40 and 50, respectively. Connected to the base of each) The circle B + is connected to the collectors of the transistors Q1 and Q2 through the relays RY1 and RY2, and the motor M is rotated forward / reversely according to the relays RY1 and RY2 to open and close the power window. do.

In addition, it is necessary to control the motor by detecting it when the power window is completely closed or opened. In this case, an overcurrent is applied through the relays RY1 and RY2 and the overload detection resistor R0, and the overload detection unit 60 ) Detects the overcurrent through the comparison IC (IC2) and outputs the corresponding signal to the microcomputer 30.

In addition, a jump line J is preferably added to the input unit 6 in order to control the first up / down switches SW1 and SW2 and the second up and down switches SW3 and SW4 having the two stages for each mode.

Reference numeral 70 denotes a constant voltage circuit unit, which is composed of a diode D1, a resistor R1, a constant voltage IC IC1, and capacitors C1 and C4, and the power sourced through the constant voltage IC IC1 is a microcomputer 30. It is used as a power supply for the comparison IC (IC2).

That is, when the power source B + is applied, the power source is connected to the constant voltage circuit unit 70 so that the voltage of 5V is applied to the pin 1 of the microcomputer 30. Then, in order to determine the specifications, the microcomputer 30 reads the states of the 4th, 5th, and 6th pins of the microcomputer, and predetermined programs are set in the internal memory to determine the power window operation specification. Looking at the criteria for the evaluation is shown in Table 1 below. That is, the connection state of pins 5 and 6 of the microcomputer 30 is determined according to the wired or wireless wire of the jump line J, and the state of pin 4 of the microcomputer is determined by the overload detection unit 60. Since the input for sensing is connected to the inverting terminal (-) of IC2, this input is OV in the operation stop state, and the non-inverting terminal (+) of IC2 is applied a constant voltage, so the output of IC2 is 'high'. On the contrary, in the case of the non-inverting circuit, since the current sensing input is connected to the non-inverting terminal (+) of IC2, this input is OV in the operation stop state, and a constant voltage is applied to the inverting terminal (-) of IC2. The output goes 'low'. The state of pin 4 is determined based on the above principle. The specification is determined according to the conditions described above. When one of the four modes is selected, the microcomputer 30 selects the power window from the four specifications of FIG. In order to examine the operation of the circuit configured as described above, it is necessary to know the configuration and operation method of the switch unit 10, and the specification I indicates that the first up switch SW1 and the first down switch SW2 Consisting of one set, the power window on the first lower switch SW2 automatically descends to the lower end, and the power window on the first rising switch SW1 automatically rises to the upper end. That is, when pins 5 and 6 of the microcomputer 30 detect a connection and a 'high' signal is detected through pin 4, the microcomputer 30 detects the specification I as the specification I and operates the program according to the specification I. It is built-in and is automatically set to operate with the function of 1) of FIG. 2. When the specification is set to I, SW1 becomes an automatic rising switch, and SW2 becomes an automatic falling switch. The operation condition is set to operate in response to the pressed switch in the operation stop state, and the operation is stopped when either of them is operation increase. The overload detection unit 60 is an inversion circuit, and the current sensing input is connected to the inversion terminal (-) of the IC2. Since it is connected, this input is OV and the non-inverting terminal (+) of IC2 has a certain voltage, so the output of IC2 becomes 'high (5V)' signal. When the motor is constrained, the voltage at the inverting terminal (-) of IC2 increases, and if the voltage is higher than the voltage of the non-inverting terminal (+) of IC2, the output is inverted and becomes a 'OV' signal. Detects this and turns off the output.

In the specification II, the first rising switch SW1 and the first falling switch SW2 are composed of one set so that when the first lowering switch SW2 is turned on, the power window automatically lowers to the lower end, and the first rising switch SW1 The ON window senses the time pressed and the power window rises only during the time when the first rising switch SW1 is pressed.

Specification III consists of two sets of upswitches SW1 and SW3 and downswitches SW2 and SW4 so that when the first downswitch SW2 is turned on, the first down switch SW2 is sensed by pressing the first downswitch SW2. Only when the power window is lowered and the second lower switch SW4 is turned on while the first lower switch SW2 is turned on, the power window automatically lowers to the lower end.

On the contrary, when the first rising switch SW1 is turned on, the power window rises only during the time when the first rising switch SW1 is pressed, and the second rising switch SW3 is turned on when the first rising switch SW1 is turned on. Power on, the power window is automatically raised to the upper end. That is, the microcomputer 30 detects the opening through pins 5 and 6, and when the high signal is detected through pin 4, the microcomputer 30 is specified in specification Ⅲ. In accordance with the program (software) pre-stored in the microcomputer is recognized as the function of 3) of Figure 2 is automatically set to operate the window.

Specification IV consists of two lower switches (SW2 and SW4) and one upward switch (SW1) .Only when the first lower switch (SW2) is pressed, only the time for pressing the first lower switch (SW2) is detected. Is lowered and when the second lower switch SW4 is turned on while the first lower switch SW2 is turned on, the power window automatically lowers to the lower end.

The ON window of the first rising switch SW1 senses a pressing time and the power window only rises when the first rising switch SW1 is pressed. That is, the microcomputer 30 detects an opening through pins 5 and 6, When the 'low' signal is detected through pin 4, the microcomputer 30 recognizes the specification IV and automatically sets the window to operate as a function of 4) of FIG. 2 according to a program (software) previously stored in the microcomputer.

Hereinafter, looking at each component of the circuit according to the present invention in more detail, the reference numeral 70 denotes the constant voltage IC (IC1) through the diode (D1) and the resistor (R1) when the power supply (B +) is applied to the constant voltage circuit unit and the constant voltage IC ( The voltage in the circuit is always kept constant even when the external voltage changes due to the constant voltage by the IC1) and the capacitors C1 and C4, and the malfunction of the circuit is prevented.

The constant voltage power source is connected to pin 1 of the microcomputer 30 and the comparison IC (IC2) of the overload detection unit 60 and used as a power source.

Next reference numeral 20 denotes an input part, when the first rising switch SW1 is turned on, the rising control signal is input to the microcomputer 30 through the resistors R12 and R10 to the seventh pin of the microcomputer 30, and the first falling switch. When SW2 is turned on, the falling control signal is input to the microcomputer 30 through pins 6 of the microcomputer 30 through the resistors R15 and R13.

The second rising switch SW3 and the second falling switch SW4 are connected in parallel to sense the rising signal and the falling signal according to the conditions of the first switches SW1 and SW2.

That is, when the second rising switch SW3 is turned on while the first rising switch SW1 is turned on, the second rising switch SW4 is detected as a second rising signal, and the second falling switch SW4 is turned on when the first falling switch SW2 is turned on. If it is turned on, the second falling signal is detected.

Reference numeral 10 denotes a switch unit. The first rising switch SW1 and the first falling switch SW2 are a seesaw type and cannot be operated simultaneously. The second switches SW3 and SW4 have the first switches SW1 and SW2 on. Only when the operation is configured.

When the second switches SW3 and SW4 are turned on, the second control signals are input to the microcomputer 30 through pins 5 of the microcomputer 30 through the resistors R18 and R16.

At this time, the resistors R11, R14, and R17 maintain the input of the microcomputer 30 in a low state when there is no operation of the switch unit 10, and the capacitors C7, C8, and C9 remove noise. It plays a role.

Reference numeral 40 is a rising driver. When a signal output from pin 2 of the microcomputer 30 is input to the base of the transistor Q1 to drive the transistor Q1, the relay RY1 is operated.

At this time, when the relay RY1 contact is operated to the rising side, the power source B + is supplied to the motor M through the relay RY1 contact, and the motor M rotates in the upward direction, thereby increasing the power window.

When the power window rises and is completely closed, the current flowing in the motor M is rapidly increased.

At this time, a voltage is increased to the overload detection resistor R0 connected between the motor M and the ground, and the voltage is applied to the comparison terminal of the comparison IC IC2 through the resistor R9, and the reference of the comparison IC IC2 is applied. The voltage becomes the divided voltage of the resistors R7 and R8. When the voltage applied to the comparison terminal of the comparison IC (IC2) becomes higher than this reference voltage, the output of the comparison IC (IC2) is inverted and 4 of the microcomputer 30 is inverted. A low signal is output to the burn pin, and the microcomputer 30 outputs a low signal through the second pin to turn off the transistor Q1 and stop the rotation of the motor M.

Reference numeral 50 denotes a falling driver, and when the signal output from pin 3 of the microcomputer 30 is input to the base of the transistor Q1 to drive the transistor Q2, the relay RY2 is operated.

At this time, when the relay (RY2) contact is operated to the lower side, the power supply B + is supplied to the motor (M) through the relay (RY2) contact so that the motor (M) rotates in the downward direction and the power window is lowered.

When the power window is lowered and fully opened, the current flowing in the motor M increases rapidly as in the case of rising.

At this time, a voltage is increased to the overload detection resistor R0 connected between the motor M and the ground, and this voltage is applied to the comparison terminal of the comparison IC IC2 through the resistor R9, and the reference of the comparison IC IC2 is applied. The voltage becomes the divided voltage of the resistors R7 and R8. When the voltage applied to the comparison terminal of the comparison IC (IC2) becomes higher than this reference voltage, the output of the comparison IC (IC2) is inverted to show four of the microcomputer 30. A low signal is output to the burn pin, and the microcomputer 30 outputs a low signal through the pin 3 to turn off the transistor Q2 and stop the rotation of the motor M.

When the configuration of the first switch (SW1, SW2) and the configuration of the first and second switches (SW1, SW2, SW3, SW4) is different, the jump line (J) is provided with a jump line (J) to distinguish it. When pins 5 and 6 of the microcomputer 30 are connected to each other, the first switches SW1 and SW2 are automatically set in the program stored in the microcomputer 30 so as to control the automatic rising or falling.

At this time, the second switches SW3 and SW4 need not be used.

Automatically set by the program stored in the microcomputer 2 such that only the pressing time is operated by the first switch SW1 and SW2 and the second switch SW3 and SW4 are controlled by the rising and falling automatically when the jump line J is not connected. do.

When the above-described components are described in accordance with the above-described specifications I, II, III, and IV, the specification I includes a set of a first rising switch SW1 and a first lowering switch SW2, and a first lowering switch SW2. ) Automatically descends to the end of the on time and automatically rises to the end of the first up switch SW1. The first lower switch SW2 connects pins 6 and 5 of the microcomputer 30 through a jump line J. The first switches SW1 and SW2 are set in a program stored in the microcomputer 30 so that the first switches SW1 and SW2 may automatically raise or lower.

In addition, by using the overload detection unit 5 as an inverting circuit, the output of the comparator IC (IC2) is maintained in a 'high' state during the operation stop state, and the pin 4 of the microcomputer 30 senses this to raise and lower the operation. It is adjusted to be automatic controlled.

In order to stop during the automatic raising operation and the automatic lowering operation, it is stopped even if any of the first rising switch SW1 or the first falling switch SW2 is operated.

The specification II is composed of one set of the first up switch SW1 and the first down switch SW2, and automatically descends to the end of the on time of the first down switch SW2, and only when the first up switch SW1 is on is pressed. As a rising function, the first falling switch SW2 connects pins 6 and 5 of the microcomputer 2 through a jump line J.

Using the overload detection unit 5 as a non-inverting circuit, the output of the comparison IC (IC2) is kept 'low' when the operation is stopped and the pin 4 of the microcomputer 30 detects this and automatically descends during the falling operation. In operation and during the rising operation, only the time for pressing the first rising switch SW1 is adjusted.

In order to stop during the automatic lowering operation, it is stopped even if any of the first rising switch SW1 or the first lowering switch SW2 is operated.

Specification III consists of two sets of upswitches SW1 and SW3 and downswitches SW2 and SW4. The on / off of the first downswitch SW2 detects the pressing time and presses the first downswitch SW2. Only the time when the power window is lowered, the on time of the first rising switch (SW1) senses the time to press the power window rises only the time to press the first rising switch (SW1), the first switch (SW1, SW2) is turned on When the second switch (SW3, SW4) is turned on in the state is a specification that automatically rises or falls automatically, the input of the first rise switch (SW1) is connected to pin 7 of the microcomputer 30 and the first down switch (SW2) It is connected to pin 6 of the microcomputer (2).

The second switches SW3 and SW4 are connected to each other in parallel and are connected to the fifth pin of the microcomputer 30.

As described above, when the first switch SW1 or SW2 is pressed and the first switch SW1 or SW2 is pressed, the power window is automatically raised when the second switch SW3 or SW4 is pressed while the first switch SW1 or SW2 is pressed. Automatically set by the program of the microcomputer 30 to descend.

In order to stop the operation during the automatic rising or falling, the microcomputer 30 moves to the transistors Q1 and Q2 of the rising / falling driving circuit units 40 and 50 regardless of which of the first switches SW1 and SW2 is operated. It is programmed to stop the motor M by outputting a low 'signal.

The specification IV consists of the first rising switch SW1 and the first and second falling switches SW2 and SW4. The configuration and operation method of the input unit 6 are the same as the specification III, and the second rising switch SW3. It is different from specification III that there is no automatic control function when power window is raised.

In order to stop during the automatic lowering operation, any one of the first switches SW1 and SW2 is operated to stop.

As mentioned above, although there are four types of switchgear specifications of the vehicle power window according to the configuration and operation method of the switch unit SW, the jump line J is applied in one circuit even though the specifications are different according to the vehicle model and the application country. By only changing the terminal arrangement of the input section 6, four different specifications can be satisfied, which simplifies the circuit and lowers the cost.

Therefore, the present invention can satisfy all of the operating specifications of various power windows by only changing the terminal arrangement of the input unit by using only one circuit configuration and a jump line of the automotive power window, so that the manufacturing line according to various specifications can be shortened. The simple circuit improves productivity and lowers production costs.

Claims (3)

First rising and lowering switches SW1 and SW2 for opening and closing the first power window of the vehicle; Second rising and falling switches SW3 and SW4 for opening and closing the first power window; The signal input through the first or second rising and falling switches is removed through circuits such as the resistors R10 to R18 and the capacitors C7 to C9, and the first falling switch SW2 is set according to the window opening and closing mode. ) And an input unit 20 connecting the output terminal of the second rising switch SW3 with a jump line; A microcomputer 30 for receiving a window opening / closing command through the input unit and analyzing the window opening / closing command and outputting a window driving control signal in an auto or one-touch manner in a preset mode; A rising drive circuit unit 40 which is operated according to the output signal of the microcomputer to supply power to the window motor through a relay and rotate forward, and raise the power window in an auto or one-touch manner; A falling driving circuit unit 50 which is operated according to the output signal of the microcomputer and supplies power to the window motor through a relay to reverse rotation, and lowers the power window in an automatic or one-touch manner; And An overload detection unit 60 for receiving an electric power output through one end of a relay installed in the rising and falling driving circuit unit, detecting an overcurrent, and outputting it to a microcomputer to control the power window according to whether the power window is completely opened or closed; Opening and closing device of the vehicle power window, characterized in that provided with. The method of claim 1, The overload detection unit 60 has one side contact of the relay switches RY1 and RY2 of the rising and falling driving circuits connected to the input terminal of the comparison IC IC2 through the overload detection resistor R0. Switching device of the vehicle power window, characterized in that the output terminal is connected to the microcomputer (30). The method of claim 1, Switching device for a vehicle power window, characterized in that the microcomputer 30 is further connected to a constant voltage circuit consisting of a constant voltage IC and a filter consisting of a diode (D1), a resistor (R1), capacitors (C1, C4).