KR100371731B1 - Anti-pinch sunroof system - Google Patents

Abstract

The present invention determines whether the object is pinched in the process of the sunpoof tilting down or closed, and if the object is pinched anti-pinch line that can prevent the safety accident by opening the sunroof by inverting the rotation direction of the sunroof motor The sunroof system, which is a sunroof motor that opens and closes the sunroof by the current supplied from the battery according to the operation of the overhead console switch, is mounted on the armature shaft of the sunroof motor and generates an encoder signal. It checks the period change of the encoder signal transmitted to the Hall sensor based on the Hall sensor and the voltage supplied from the battery to determine whether the object is detected when the sunroof is closed or tilted down. It consists of a controller that controls the sunroof to open or tilt up by reversing the rotational direction of the loop motor. There is off.

Description

Anti-pinch sunroof system {ANTI-PINCH SUNROOF SYSTEM}

The present invention relates to an anti-pinch sunroof system, and more particularly, to determine whether an object is jammed in the process of tilting down or closing the sunpoof, and inverting the rotation direction of the sunroof motor when the object is stuck. An anti-pinch sunroof system for allowing the sunroof to open automatically.

Generally, various convenience devices for the driver and the passenger are provided in the interior of a vehicle. Convenience devices include ash trays and cup holders for placing cups or beverage cans.

In addition, the roof of the vehicle is equipped with a sunroof that can be opened and closed when necessary in order to introduce external natural light into the interior of the vehicle and to discharge air from the interior of the vehicle to the outside. The sunroof is configured to be opened and closed while sliding along a guide rail installed in the roof panel of the vehicle, and this opening and closing operation is performed by the sunroof motor. The sunroof motor is operated by the current supplied from the battery in response to the operation of the overhead console switch installed in the roof of the vehicle, thereby opening and closing the sunroof, tilting up and tilting down. The action is performed. In addition, the opening and closing operation of the sunroof is operated while the console switch is being pushed or when the console switch is pressed only once, it is automatically opened or tilted up.

In the conventional sunroof system having such a configuration, the view of the sunroof must be shifted to close the sunroof, which is quite inconvenient and high accident risk. In addition, even if the automatic operation function is provided, only the operation that is opened under the relevant law is automatically executed, so there is a problem that the closing operation mainly performed at high speed driving still has to be operated manually. On the other hand, in order to configure the sunroof to close automatically, a safety device for automatically reversing the closing action to the open action when an object is caught during the sunroof closing or tilting down should be provided. The object jamming structure employed in the power window of the power supply measures only the change of time due to the operating speed of the motor, and does not break down the operating conditions such as the voltage at the time of operation. There is a feeling.

The present invention for solving this problem is to determine whether the object is jammed in the process of the sunpoof tilting down or closed, and if the object is stuck to prevent the safety accident by opening the sunroof by changing the rotation direction of the sunroof motor An object of the present invention is to provide an anti-pinch sunroof system.

1 is a block diagram showing the configuration of an anti-pinch sunroof system according to the present invention,

Figure 2 is a circuit diagram showing the configuration of the anti-pinch sunroof system according to the present invention,

3A and 3B are a cross sectional view and a longitudinal sectional view showing the structure of a hall sensor mounted on an armature shaft, respectively;

4 is a waveform diagram of an encoder signal generated from a hall sensor;

Figure 5 is a schematic cross-sectional view showing the operation of the anti-pinch sunroof system according to the present invention,

6A and 6B are waveform diagrams showing examples of stored encoded signals and current encoded signals;

7 is a flowchart showing the operating principle of the anti-pinch sunroof system according to the present invention.

[Explanation of symbols on the main parts of the drawings]

2: encoder signal 4: battery voltage

6: Safety control controller 20: sunroof motor

24: Amateur 26: Amateur shaft

28: Hall sensor 30: Overhead console switch

32: Sunroof

The anti-pinch sunroof system of the present invention for achieving the above object is a sunroof system of a vehicle mounted in a roof for the introduction of sunlight or outside air and the discharge of indoor air, according to the operation of the overhead console switch. A sunroof motor that opens and closes the sunroof by a current supplied from a battery, a hall sensor mounted on the armature shaft of the sunroof motor to generate an encoder signal, and transmitted to the hall sensor based on a voltage supplied from the battery A controller that checks the cycle change of the encoder signal to determine whether the object is detected when the sunroof is closed or tilts down, and controls the sunroof to open or tilt up by reversing the rotation direction of the sunroof motor when the object is caught. Characterized in that it comprises a.

Hereinafter, an anti-pinch sunroof system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a configuration of an anti-pinch sunroof system according to the present invention, Figure 2 is a circuit diagram showing a configuration of an anti-pinch sunroof system according to the present invention.

As shown in these figures, a preferred embodiment of the present invention is to detect the jamming of objects that may occur in the automatic closing process of the sunroof, and to reverse the closing operation of the sunroof when the object is caught. In the example, the hall sensor 28 is mounted on the sunroof motor 20, and then the object is caught by the sunroof safety controller 6 (hereinafter referred to as a controller) based on the encoder signal generated by the hall sensor 28. The method of controlling the output of the sunroof motor by determining whether or not is illustrated.

That is, the controller 6 checks the period change of the encoder signal generated by the hall sensor 28 mounted on the sunroof motor 20 based on the battery voltage 4 supplied from the battery, and then closes the sunroof. Alternatively, when the object is caught by the tilt down, the motor output control 8 signal is transmitted to the sunroof motor 20 to reverse the direction of rotation of the sunroof motor 20. It is configured to be tilted up.

The register sensor embedded in the controller 6 modulates a rectangular pulse according to a signal period generated from the hall sensor 28 based on the battery voltage 4, and determines whether the object is jammed.

3A and 3B are cross-sectional and longitudinal cross-sectional views showing the structure of the Hall sensor mounted on the armature shaft, respectively, and FIG. 4 is a waveform diagram of the encoder signal generated by the Hall sensor. An armature shaft 26 is built into the housing 22 of the sunroof motor 20 that opens and closes the sunroof by the current supplied from the battery according to the operation of the overhead console switch. The amateur 24 is wound up. In addition, the armature shaft 26 is equipped with a hall sensor 28 for generating a pulse signal. As shown in FIG. 3B, the Hall sensor 28 is alternately arranged with the north pole and the south pole, so that the north pole and the south pole alternate with the rotation of the armature shaft 26, as shown in FIG. A signal waveform as shown in the figure is generated.

Referring to FIG. 4, positive pulse waves having an amplitude between the high voltage 5V and the low voltage OV are generated periodically and repeatedly according to the moving distance that changes with the rotation of the armature shaft 26. The pulse wave is transmitted to the controller 6.

5 is a cross-sectional view schematically showing the operation of the anti-pinch sunroof system according to the present invention.

As shown, an overhead console switch 30 is mounted on the roof panel, and when the overhead console switch 30 is operated, current of the battery is supplied to the sunroof motor 20. By the operation of the sunroof motor 20, the sunroof 32 is opened along the guide rail installed in the loop along the arrow direction P1 and tilted upward along the arrow direction P2, thereby inclining the roof. It is arranged to ventilate the indoor air. On the other hand, when the console switch 30 is operated again to close the sunroof 32, the sunroof 32 moves forward along the arrow direction P3 and the arrow direction is closed at the same time as the sunroof motor 20 operates. Tilt down along P4 to descend. In this process, if an object is caught between the sunroof and the guide rail, the inverted control signal is applied to the motor as shown in FIGS. 6 and 7 by a controller (not shown) disposed adjacent to the sunroof motor 20. The output switches to the autoreverse function.

FIG. 6A shows the encoded signal waveform stored in the controller 6, and FIG. 6B shows the waveform of the current encoded signal. 7 is a flowchart showing the operation of the anti-pinch sunroof system according to the present invention.

The controller 6 stores an initial value corresponding to one round trip value (for example, E3 in FIG. 6A corresponding to the current voltage E3 'in FIG. 6B) (step S1). In this state, the operation of the sunroof 32 starts (step S2), and it is determined whether the current voltage E3 'obtained from the encoder signal is equal to or greater than the reference value (e.g., 13V) (step S3). If the current voltage E3 'is equal to or greater than 13 V (YES in step S3; hereinafter, denoted by Y), it is determined whether the voltage E3' is equal to or greater than the correction value (current voltage E3 + 0.3 kV). (Step S4).

Next, when the voltage E3 'is equal to or greater than E3 + 0.3 (kV) (Y in step S4), the voltage E3' is the full value of the new correction value E '(i.e., E2') + 0.3 ( I)) it is determined to be abnormal (step S5). At this time, when E3 'is equal to or larger than the correction value E2' + 0.3 (㎳) (Y in step S5), the voltage E3 'is equal to the previous value of the new correction value E' (i.e., E1 ') +0.2 ( I)) or not (step S6), and when E3 'is equal to or greater than the correction value (E1' + 0.2 (㎳)) (Y in step S6), an inverted signal is sent to the sunroof motor 20 to autoreverse. The function is performed (step S7).

On the other hand, if the current voltage E3 'is smaller than the reference value 13V (NO in step S3; denoted as N below), then in the next step S8, the same comparison process as in step S4 described above is performed horizontally. That is, in step S8, it is determined whether or not the present voltage E3 'is equal to or greater than the correction value (current voltage E3 + 0.3 (m)), and then if the voltage E3' is equal to or greater than E3 + 0.3 (m) ( In step S8, it is determined whether or not this voltage E3 'is equal to or greater than the new correction value E (the stored value of E (that is, E3) + 0.2 (kPa)) (step S9). At this time, when E3 'is equal to or larger than the correction value E3 + 0.2 (mW) (Y in step S9), the voltage E3' is equal to the previous value of the new correction value E '(i.e., E1') + 0.2 (mW). (Step S10), if E3 'is equal to or greater than the correction value (E1' + 0.2 (보내)), an inverted signal is sent to the sunroof motor 20 to perform the autoreverse function (step S10). S12).

As described above, in the control logic of the present invention, after obtaining the data correction value according to the voltage, the safety of the system is minimized by minimizing the reversal force by performing a horizontal comparison in the current progress data and a vertical comparison with the preceding data. This was to be improved.

According to the present invention described above, it is possible to prevent the safety accident by determining whether the object is jammed in the process of the sunpoof tilting down or closing, and opening the sunroof by changing the rotation direction of the sunroof motor when the object is stuck There is an advantage.

Claims (2)

In a sunroof system of a vehicle mounted in a roof for introducing sunlight or outdoor air and for exhausting indoor air, A sunroof motor that opens and closes the sunroof by current supplied from the battery according to the operation of the overhead console switch; A hall sensor mounted on the armature shaft of the sunroof motor to generate an encoder signal; Based on the voltage supplied from the battery, the cycle change of the encoder signal transmitted to the hall sensor is checked to determine whether the object is detected when the sunroof is closed or tilted down, and when the object is caught, the rotation direction of the sunroof motor An anti-pinch sunroof system, characterized in that it comprises a controller for inverting the sunroof to open or tilt up. The method of claim 1, The controller implements a data correction value according to the voltage, and based on the correction value, the controller controls the reversal force to be minimized by performing a horizontal comparison of the current progress data and a vertical comparison of the preceding data. Anti-pinch sunroof system.