KR100325833B1 - Controlling device for automobile sunroof - Google Patents

Abstract

The present invention relates to a sunroof control apparatus of a vehicle, and to the microcomputer (2) by detecting whether the sunroof (S) and the overall control of the sunroof (S) and the sunroof (S) is completely closed. Hall sensor for inputting sunroof closing detection hall 4 and hall sensor for inputting to the microcomputer 2 by reading the current fluctuation of the motor M which changes when a human body or an object gets caught in the operating sunroof ( 10), a variable resistor (VR) for manually setting the human body protective function reference voltage (B) value input to the microcomputer (2), and a current sensing load for detecting a current change (change) of the motor (M). A / D converter 12 for converting the current change signal sensed by the resistor R, the current sensing load resistor R into a digital signal, and the rotational speed of the motor M are sensed and input to the microcomputer 2. It consists of a switch 6 consisting of a Hall sensor 10, an opening button 16, a closing button 18, an exhaust button 20, and an automatic closing button 22, Using this high hall sensor and permanent magnet, one pulse is input to the microcomputer every time the commutator of the motor rotates, so accurate position control is achieved and the sunroof is operated. When you are doing it, you can control the whole position by the position control method that you can always know your position. When the sunroof is operating in the direction of closing, when the part of the human body or the object gets stuck, the sunroof is automatically opened by the overload blocking function. Objects and sunroofs can be protected, and motor overload can be prevented by monitoring the current change of the motor and controlling it properly by MICOM.

In addition, malfunctions are prevented due to the aging of parts and the effects of deformation due to the deformation of the sunroof. The reference value set in the microcomputer can be set appropriately from the outside through a reference value control means such as a variable resistor. By doing so, it is possible to solve the problem of malfunction caused by the completion of the sunroof after installation or the increase of the current value due to the deformation of the product according to the condition of the vehicle.

In addition, collect and average the operating current values for all the sections of the car where the sunroof operates by product of each vehicle type, and classify them by the location of each section (to obtain the upper and lower average of the operating current) to determine the current value error between products. It is operated by inputting and setting up to microcomputer, and can actively respond to general condition change.

In addition, since the current value set in the microcomputer can be artificially set externally through a reference value control means such as a variable resistor, a malfunction problem after the completion of the installation of the sunroof or the increase of the current value due to the deformation of the product according to the condition of the vehicle. There is an effect that can solve.

Description

Control device for automobile sunroof

The present invention relates to a sun roof control apparatus of a motor vehicle.

In general, when an automobile company sells a sun roof installed, it is developed according to the conditions of the car, so there are no difficult parts except for adding special functions for control or special requirements. When the sunroof is installed from the outside after installation, there are many problems in controlling the sunroof because the sunroof is fixed and there are many types of vehicles, especially since the specifications and the degree of curvature of the roof parts are very different from each other. In order to do this, many companies are making a lot of research and efforts to manufacture sunroof for automobile.

Looking at the international trend of automotive sunroof control devices (modules), the trend is evolving into a one-touch method that emphasizes the convenience and safety of users. In line with this trend, sunroof manufacturers can compete in the global market. We are making diligent efforts to develop products.

In addition, in order to recognize the position of the sunroof itself, when the armature of the motor rotates once, the position is controlled by using eight pulse waveforms containing ripple. And the pulse waveform does not occur constantly according to the ripple contained in accordance with the efficiency, and thus there is a problem that accurate position control is difficult.

The sunroof can be controlled in various ways, but in the present invention, when the sunroof is operating, the human body protection function is activated when the sunroof is automatically operated by the position control method which always knows its position. To protect the human body.

It is also an object of the present invention to ascertain whether the operation of the motor has stopped after the sunroof is operated in the correct position.

It also aims to prevent overload of the motor by monitoring the current change of the motor and controlling it properly with MICOM.

In addition, an object of the present invention is to provide a function of preventing a malfunction due to an erroneous detection prevention function due to deterioration of a component and a deformation due to a sun roof mounting condition.

In addition, it collects and averages the operating current values for all the sections in which the sunroof operates, and then divides them by each section and location and embeds them in the microcomputer to obtain the upper and lower average values of the operating current for each product. It aims to be able to cope with general condition change.

In addition, in order to solve the problem of malfunction caused by the completion of the sunroof or the increase of the current value due to the deformation of the product according to the condition of the vehicle, the current value built into the microcomputer is externally controlled through a reference value control means such as a variable manipulator. It aims to be able to set artificially and appropriately.

In addition, by using a highly reliable hall sensor and a permanent magnet (magent), one pulse is generated every time the commutator of the motor rotates to achieve accurate position control. .

In order to achieve the above object, the current value is collected and averaged for all the sections in which the sunroof operates, and this is divided into positions for each section and embedded in the microcomputer.In this case, the upper and lower average values of the operating current for each product are obtained. By setting the current value error, you can cope with general condition change.

Also, in order to solve the problem of malfunction caused by the completion of the sunroof or the increase of the current value due to the deformation of the product according to the condition of the vehicle, the reference current value set in the microcomputer is externally controlled through the current control means such as a variable resistor. Allow artificial adjustments.

In addition, conventionally, the reliability of position control was very low by detecting the rotational speed of the motor by a pulse wave containing ripple, but in the present invention, a highly reliable hall sensor and a permanent magnet are used in the motor commutator. One pulse is generated every time the commutator rotates to achieve accurate position control.

1: An exploded reference perspective view of the sunroof of the present invention.

2 is a circuit block diagram of a sunroof control device of the present invention.

3 is a partial cross-sectional view of a hall sensor installed in the sunroof glass of the present invention.

4 is a partial cross-sectional view of the Hall sensor installed in the motor of the present invention.

5 is a front configuration diagram of the switch of the present invention.

6 is a side configuration diagram of the switch of the present invention.

7 is a graph showing the current change according to the motor overload of the present invention.

<Explanation of symbols for the main parts of the drawings>

(2)-Microcomputer (4)-Sunroof closed detection hall sensor

(6)-switch (8)-motor driver

(10)-Hall Sensor (12)-A / D Converter

(14)-Speed Detection (16)-Open Button

(18)-Close Button (20)-Exhaust Button

(22)-Auto close button (24)-Housing

(26)-Circular Ring (28) (34)-Permanent Magnet

(30)-Glass (32)-Guide Rail

(36)-Moving Means (38)-Cables

(40)-Space Division (42)-Lighting

(44)-Red Warning Light (46)-Elastic Press

(48)-Switch case (B)-Reference voltage

(VR)-Variable resistor (M)-Motor

(S)-Sun loop (R)-Current sense load resistance

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded reference perspective view of the sunroof S of the present invention, and FIG. 2 is a circuit block diagram of the present invention, in which the microcomputer 2 which oversees the control of the sunroof S and the sunroof S are completely closed. The sunroof closed detection hall sensor 4 which detects whether or not the sensor is input to the microcomputer 2 and the human body or the object are caught in the operating sunroof by reading the current variation value of the motor M and inputting it to the microcomputer 2. If the Hall sensor 10 and the human body protection function are set sensitively, the human body protection function may operate due to the increase in load due to the aging of the motor M and the inflow of dust or sand to the sunroof guide rail. Therefore, the variable resistor (VR) for manually setting the human body protective function reference voltage (B) value input to the microcomputer (2) and the current sensing load resistance for detecting the current change (variation) of the motor M ( R) and the current-commutation signal of the analog state sensed by the current sensing load resistance (R) are recognized by the microcomputer (2). A / D converter 12 for converting to digital signal, Hall sensor 10 for sensing rotation speed of motor M and inputting to microcomputer 2, Open button 16, Close button 18 ), An exhaust button 20, and a switch 6 arranged in an automatic closing button 22.

Hall sensor 10 for detecting the rotational speed of the motor (M) in the above is installed in the housing 24 of the motor (M) or a non-illustrated fixing member, as shown in Figure 3, the rotating shaft of the motor (M) 26 is fixed and one permanent magnet 28 is embedded in the circular ring 26. Therefore, since one pulse is input to the microcomputer 2 every time the commutator of the motor M rotates, the current position and the section of the sunroof S can be determined.

In addition, the sunroof closing detection hall sensor 4 is installed at one end of the guide rail 32 for guiding the glass 30 of the sunroof when the sunroof S is opened or closed, as shown in FIG. Permanent magnet 34 forming a pair with the detection hall sensor 4 is embedded in the moving means 36 for moving the glass 30 can detect the closed state of the sunroof (S), the movement The means 36 are powered by a cable 38 which is connected to the motor M.

In the above, when the moving means 36 is located on the left side of the hall sensor 4, the rear end of the glass 30 is lifted up to the exhaust state. On the contrary, when the hall sensor 4 is located on the right side of the moving means 36. When the glass 30 is completely lifted open and the glass 30 is completely closed by the switch 6 operation, the permanent magnet 34 is located at the upper part of the hall sensor 4, so the microcomputer 2 is a sunroof. It is determined that S and the glass 30 are completely closed.

In addition, in the present invention, when the human body protection function is set sensitively, even if the load (負荷) rises slightly due to the inflow of dust or sand to the aging of the motor (M) and the sunroof guide rail, the human body or the object is caught between the sunroof. Since the microcomputer 2 may misjudge, the driver may reset the appropriate human body protection reference value to the variable resistor VR in order to cope with such a change. The variable resistor VR is connected in series with a power source B, which is a reference voltage of a human body protection function.

In the present invention, the switch 6 composed of the open button 16, the close button 18, the exhaust button 20, and the automatic close button 22 is located in the interior of the vehicle near the front board of the driver's seat or near the sunroof S. It is preferable to install the ceiling, and the buttons 16, 18, 20, and 22 are formed of a translucent material, and a space 40 is formed inside the switch 6, as shown in FIG. Install the lamp 42 and the red warning lamp 44 in the unit 40, but the lamp 42 is turned on / off (ON / OFF) by interlocking with the taillight of the car, the lamp 42 is also turned on The buttons 16, 18, 20, and 22 are illuminated while being turned on and off, so the buttons 16, 18, 20 and 22 of the switch 6, even at night or in dark surroundings. Make it easy to identify and manipulate.

In the above, the lamp 42 and the red warning lamp 44 have a beautiful appearance and use a light emitting device having excellent lighting effect, and the elastic pressing unit 46 is formed on both outer portions of the switch 6 so that the switch 6 can be used. The key pad type buttons 16, 18, 20, and 22 are each formed of an opaque material, and the buttons 16 and 18 are easily inserted into the through holes formed at the positions to install the buttons. It may be configured to be partially illuminated by forming a semi-transparent portion between the (20) 22 and the case 48 of the switch (6).

In the above, the microcomputer 2 calculates the period in which the driver or the user presses the buttons 16, 18, and 20 of the switch 4 to operate in one touch or only during the pressed period.

That is, if the time for continuously pressing the buttons 16, 18, 20 of the switch 4 is 0.5 seconds to 1 second or more, the motor M rotates during the pressing period, thereby opening and closing the sunroof S. When the button 16, 18, 20 of the switch 4 held down is released, the motor M stops and the movement of the glass 30 stops. In addition, when the buttons 16, 18 and 20 of the switch 4 are momentarily pressed once, it is preferable that the opening or closing is made to the end by the one-touch function.

At this time, the rotational speed detection signal of the motor M is transferred to the microcomputer by the permanent magnet 28 installed on the rotation shaft Ma of the motor M and the hall sensor 10 installed on the motor M housing 24. The microcomputer 2 determines the open position and the section of the sunroof glass 30 by comparing the input rotation speed detection signal with the entire stroke input in advance, and starts the driver without closing the sunroof S. When turning off, the start-off signal is input to the microcomputer 2, the microcomputer 2 outputs a closing signal, and the motor M rotates. When the glass 30 is moved to the closed position and completely closed, the line as shown in FIG. The sunroof (S) closing signal is input to the microcomputer (2) by the interaction between the loop closing detecting hole sensor (4) and the permanent magnet (34), and the microcomputer (2) determines that the sunroof (S) is completely closed. The motor M stop signal is output, and thus the motor M and the sunroof S are stopped.

On the other hand, when the automatic closing button 22 is turned on (ON), the sunroof (S) by the position recognition function and the automatic closing function of the microcomputer (2) of the vehicle in the open state or the state that is not completely closed When the ignition is turned off, the sunroof (S) is completely closed by operating the auto-closing function. The sunroof (S) is closed even if the driver turns off the ignition and leaves the car. You can do it.

In addition, when it is hot, such as summer, or when the room needs ventilation or exhaust, the sunroof (S) can be opened even when the engine is turned off by turning off the automatic closing function. In this case, the automatic closing button 22 is turned off ( OFF), the red warning light 46 is turned on and the sunroof S is opened.

FIG. 7 is a graph showing an abnormal current in the present invention. The reference value set in the microcomputer 2 is set to an intermediate value between the average current upper limit and the average current lower limit, when the sunroof S operates. If the input current input from the motor driver 8 is compared with the reference current, and the upper and lower limits of the average current are within the range, the microcomputer 2 determines that there is no abnormality and maintains the operation state of the sunroof S. As shown in FIG. 7, when an abnormal current exceeding the upper limit of the average current is input, the microcomputer 2 determines that the human body or an object is caught in the sunroof and outputs the motor M reverse rotation control signal to open the sunroof S. Open the exhaust state to prevent accidents between the human body or the object between the sunroof (S).

In addition, when the human body protection function is set sensitively, dust or sand flows to the aging of the motor (M) and the sunroof guide rail, and the load (가) rises slightly, or the change of the model or the roof curvature radius of the car installed In case of change, as shown in FIG. 7, the abnormal current may appear in a specific section, so the microcomputer 2 memorizes the abnormal current generating section and the position, and ignores the abnormal current when the abnormal current is input in the corresponding position and section. .

In addition, even if the installation condition of the sunroof (S) is normal, if an abnormal current occurs and is input as described above, malfunction may occur. Therefore, the human body reference value is set upward with a variable resistor (VR) to reduce the difference with the actual input value to prevent malfunction. Done.

Looking at the position recognition process of the microcomputer (2) sunroof (S) in the present invention as follows.

When the permanent magnet 34 moving together with the sunroof glass 30 moves to the closed position, the hall sensor 4 located here detects this and the microcomputer 2 receives this signal to recognize the absolute value as the closed position. When the motor M moves in the exhaust or opening direction, the microcomputer 2 counters the direction and the pulse output from the Hall sensor 10 mounted on the motor M so that the closed position of the sunroof glass 30 The relative position will be recognized.

In addition, when the driver (user) presses the buttons 16, 18 and 20 of the switch 6, the microcomputer 2 determines whether the driver or the user determines the end point and the current position of the sunroof (S) and the motor (M). To control forward or reverse rotation.

At this time, the microcomputer 2 calculates the time when the driver presses the buttons 16, 18, and 20 of the switch 6 to perform one-touch operation, or to operate only as long as it is pressed (0.5 seconds to 1 second or more). Will be determined.

If the driver turns off the vehicle or leaves the vehicle without closing the sunroof, the motor (M) is operated to move the sunroof (S) to the left if the current position is on the right side (open). If it is on, it will move to the right.

In this process, when the human body is caught between the glass 30 of the sunroof and the frame or the guide rail 32, there is a risk of injury, and when the object is caught, the object or the sunroof may be damaged.

Therefore, when a human body or an object gets caught in the sunroof in operation, the current value of the motor M rises higher than the average current value (reference current value) set in the microcomputer 2, and the microcomputer 2 in the sunroof It is judged to be sandwiched between the output of the motor (M) reverse rotation control signal to open the sunroof or open the exhaust state to prevent accidents that humans or objects are caught between the sunroof.

On the other hand, when the human body protection function is set sensitively, even if the load (負荷) rises slightly due to dust or sand flowing into the aging of the motor (M) and the sunroof guide rail, the human body or the object is caught between the sunroof ( 2) may be misleading, in order to cope with such a change, the driver sets the appropriate human body protection reference value with the variable resistor (VR) to the variable resistor (VR).

Therefore, it is possible to prevent malfunctions from the expansion and contraction of the sunroof and its apparatus according to the season, environmental change, aging, pollution, inflow of foreign matters, and the like.

As described above, the present invention can operate the sunroof with a one-touch operation function for the whole section by using a switch, and has an effect of opening only as needed when opening the sunroof (glass) by the position memory effect by the microcomputer.

In addition, when the driver forgets and turns off the engine without closing the sunroof (glass), the sunroof is automatically closed by the control of the microcomputer, thereby protecting the vehicle from rain and foreign matter inflow and theft.

In addition, when the sunroof is operating in the direction of closing, if a part of the human body or object is caught, the sunroof is automatically opened by the overload cut-off function to protect the human body, the object and the sunroof. By controlling it properly with MICOM, there is an effect to prevent the overload of the motor.

In addition, the present invention, when the sunroof is in operation is always controlled by the position control method that can always know their position when the sunroof is automatically operated when the human body protection function to protect the human body, the sunroof It is effective to check whether the motor stops after the exact position operation.

In addition, malfunctions are prevented due to the aging of parts and the effects of deformation due to the sunroof installation conditions, and the reference value set in the microcomputer can be set appropriately from the outside through a reference value control means such as a variable manipulator. By doing so, it is possible to solve the problem of malfunction caused by the completion of the sunroof after the installation or the increase of the current value due to the deformation of the product according to the condition of the vehicle.

In addition, collect and average the operating current values for all the sections of the car where the sunroof operates by product of each vehicle type, and classify them by the location of each section (to obtain the upper and lower average of the operating current) to determine the current value error between products. As it is input and set up in the microcomputer, it can effectively respond to general condition changes.

In addition, since the current value set in the microcomputer can be artificially set from the outside through a reference value control means such as a variable manipulator, a malfunction problem after the completion of the installation of the sunroof or the increase of the current value due to the deformation of the product according to the condition of the vehicle. Has the effect to be solved.

In addition, although the reliability of position control was very low by detecting the rotational speed of the motor by a pulse wave containing ripple, in the present invention, the commutator of the motor using a highly reliable hallsensor and permanent magnet (magent) ( Since one pulse is input to the microcomputer every time the commutator is rotated, it is a very useful invention having the effect of achieving accurate position control.

Claims (5)

In the sunroof control apparatus of an automobile, the microcomputer 2 which oversees the control of the sunroof S and the sunroof closed detection hall sensor which detects whether the sunroof S is completely closed and inputs it to the microcom 2 (4) and a hall sensor 10 for reading the current fluctuation value of the motor M which changes when a human body or an object is caught in the sunroof in operation, and inputting it to the microcomputer 2, and the microcomputer 2; Variable resistor (VR) that can manually set the human body protection function reference voltage (B) value, the current sensing load resistance (R) for detecting the current change (variation) of the motor (M), and the current sensing The A / D converter 12 converts the current change signal sensed by the load resistor R into a digital signal and inputs it to the microcomputer 2, and detects the rotational speed of the motor M and inputs it to the microcomputer 2. A sunroof control device for an automobile, which is composed of a hall sensor (10) and a switch (6). According to claim 1, Hall sensor 10 for detecting the rotational speed of the motor (M) is installed in the housing 24 or the fixing member of the motor (M), the circular ring 26 of the rotating shaft of the motor (M) Permanent magnets 28 are installed in the car, characterized in that the pulse is input to the microcomputer (2) every time the motor (M) rotates to determine the current position of the sunroof (S) glass (30) Sunroof control. The sunroof closing detection hall sensor 4 is installed at one end of the guide rail 32 for guiding the glass 30 of the sunroof when the sunroof S is opened or closed. The sunroof closing detection hall sensor (4) and a pair of permanent magnets 34 is a sunroof control device of the vehicle, characterized in that the buried in the moving means 36 for moving the glass (30). The automatic closing function according to claim 1 or 2, wherein when the auto closing button 22 is turned on, the auto closing function is activated even when the vehicle is turned off by the position recognition function and the automatic closing function of the microcomputer 2, Sunroof control apparatus for a vehicle, characterized in that the sunroof (S) is completely closed. The method according to claim 1 or 2, wherein the sunroof (S) is not closed even when the vehicle is turned off when the auto closing function is released by turning off the auto closing button (22). Sunroof Control.