JPH0750265Y2 - Open / close control device for sunroof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an opening / closing control device for a sunroof in a vehicle such as an automobile.

[Conventional technology]

An openable and closable sunroof may be attached to the roof of a vehicle such as an automobile. As shown in FIGS. 8 (a) and 8 (b), such a sunroof is put into the auto mode immediately or after a predetermined chattering absorption time has elapsed, and the sunroof motor continues to operate even after the switch is turned off. Then open or close the sunroof. The motor is stopped when the position switch completely closes the sunroof or when an overload of the motor is detected.

[Problems to be solved by the device]

According to such a conventional sunroof opening / closing control device,
If a foreign object is caught before the switch is operated, there is a delay until the mask period for overload detection or the detection of an overload state of the motor even if the sunroof motor starts operating. Therefore, as shown in FIG. 8C, there is a drawback that the motor does not stop immediately because of the time lag Td even if the operation switch is turned off. Therefore, there is a drawback that there is a problem in safety when a person's hand or neck is caught.

The present invention has been made in view of the above-mentioned problems of the conventional sunroof opening / closing control device, and has a technical problem to be able to shift to the automatic mode after the sunroof starts opening or closing. .

[Means for Solving the Problems]

As shown in FIG. 1, the present invention applies a rotational force of an electric motor 1 to an opening / closing drive shaft connected to a sunroof opening / closing mechanism 2 and opens / closes the sunroof by rotating the drive shaft. And pulse generating means 3 for generating a pulse synchronized with the rotation speed of the opening / closing drive shaft.
And an operation switch 4 for giving a command to open or close the sunroof, and a transition to the automatic mode when a pulse signal is obtained from the pulse generating means at the start of opening and closing the sunroof by pressing the operation switch, and continues even when the operation switch is stopped. And a control means 5 for opening or closing the sunroof.

[Action]

According to the present invention having such characteristics, the sunroof motor is driven in the predetermined direction immediately after the operation switch for opening or closing the sunroof is turned on. In this state, when the operation switch is turned off, the sunroof motor is immediately stopped. Then, when a pulse signal is obtained from the pulse generating means by the rotation of the sunroof motor, the mode is switched to the auto mode, and thereafter, even if the operation switch is turned off, the operation is continued and the sunroof is completely opened or closed, or the motor is overheated. Continue to rotate until the load is detected.

〔Example〕

FIG. 2 is a schematic view showing the roof of a vehicle provided with the sunroof of the present invention. In this figure, there is an opening on the roof 11 of the vehicle.
12 is formed, and the opening 12 is opened and closed by the sunroof 13. Guide rails (not shown) are provided on both sides of the opening 12, and the sunroof 13 is opened and closed in the front-rear direction via a pair of left and right drive cables 14. An electric motor 1, that is, a sunroof motor 15 is mounted in front of the opening 12 in the roof 11. FIG. 3 is a schematic view showing an example of the sunroof opening / closing mechanism 2 including a slip clutch, which is a sunroof motor 15
The output shaft 16 of the drive shaft 23 is for opening and closing through a worm 17, a worm gear 18, a slip clutch 19, an intermediate shaft 20, and gears 21 and 22.
Are linked to. The drive shaft 23 is provided with a gear 24 that meshes with the drive cable 14, and each of these gears is a housing 25.
It is stored inside. One end of the drive shaft 23 projects outward from the housing 25 and is connected to the pulse generating means 3. FIG. 4 is a perspective view showing an example of the pulse generating means 3. In the figure, an iron rotary plate 27 having a uniform U-shaped notch on the circumference is attached to the protruding portion of the drive shaft 23. As shown in FIG. 4, a permanent magnet 28 and a reed switch 29 are arranged to face each other on the circumference of the rotary plate 27, and the output of the reed switch 29 as the rotary plate 27 rotates will be described later. Given to the sunroof controller.

FIG. 5 is a block diagram showing the configuration of the sunroof controller. In this figure, the sunroof operation switch,
That is, the switches SW1 and SW2 that form the operation switch for opening and closing the sunroof, the switches SW3 and SW4 that input tilt up and tilt down, and the position switch SW5 that closes the contacts when the sunroof is completely closed and the lead described above. The output of the switch 29 is given to the microcomputer 32 via the input circuit 31. The microcomputer 32 is supplied with a stabilized constant voltage power source from a battery 33 via a power source circuit 34, and an oscillation output is given from an oscillation circuit 35. As will be described later, the microcomputer 32 drives the sunroof motor 15 in a predetermined direction based on a signal from the operation switch at the time of starting the operation, and the pulse generating means 3
If more pulses are obtained, it is the control means 5 that shifts to the auto mode and drives the sunroof motor 15. An output circuit 36 for driving the sunroof motor 15 is connected to the microcomputer 32.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. 6 and the time chart of FIG. When you start the operation, first perform the initial processing in step 41,
At step 42, it is checked whether any of the operation switches SW1 to SW4 is turned on. If the operation switch has not been turned on, the routine proceeds to step 43, where it is checked whether or not the auto flag is in the reset state. If this flag is not set, the routine proceeds to step 44 to stop the sunroof motor 15 and returns to step 42. Now, when the operation switch is turned on, the routine proceeds from step 42 to step 45, and it is checked whether or not the rotation pulse is obtained from the reed switch 29 of the pulse generating means 3. If this pulse is not obtained, the routine proceeds to step 46, where the sunroof motor 15 is driven in the opening or closing direction corresponding to the operation of the operation switch. Then, returning to step 42, the same processing is repeated.
In this state, the sunroof motor 15 is immediately stopped by turning off the operation switch as shown in FIGS. Therefore, when a luggage or a part of a human body is sandwiched from the beginning, the driving can be stopped by immediately turning off the operation switch in a state where the sunroof 13 does not move even if the sunroof motor 15 rotates.

Now, when the operation switch is turned on in a state where such foreign matter is not caught, the drive shaft 23 rotates after a certain time as shown in FIG. 7 (c), and the reed switch 29 of the pulse generating means 4 causes the rotation pulse signal. Is obtained. When this signal is obtained, the routine proceeds from step 45 to step 47, and the auto flag is set. After that, the routine proceeds from step 42, 43 to step 48, and it is checked whether the pre-closed state or the motor is overloaded. If this is not the case, the motor is driven as it is in step 46,
The motor continues to rotate as shown in FIG. 7 (c).
Therefore, the sunroof can be opened or closed even when the operation switch is released. When the sunroof is completely closed, the routine proceeds from step 48 to step 44, and the sunroof motor 15 is stopped. Further, if an overload condition occurs on the way, the process returns from step 49 to step 44 and the sunroof motor 15 is stopped.

[Effect of device]

As described in detail above, according to the present invention, when the sunroof motor is opened or closed, foreign matter is trapped and the sunroof does not move and no rotation pulse is generated. Is stopped. Further, when the sunroof starts to move and the rotation pulse is obtained from the pulse generating means, the sunroof can be continuously opened or closed as it is even if the operation mode is switched to the automatic mode and the operation switch is turned off. Therefore, the operability and safety of the sunroof can be greatly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional structure of the present invention, FIG. 2 is a plan view of a sunroof portion, FIG. 3 is a schematic view showing a structure of a sunroof opening / closing mechanism, and FIG. 4 shows an example of pulse generating means. FIG. 5 is a perspective view, FIG. 5 is a block diagram showing the electrical configuration of the controller, and FIG. 6 is a flow chart showing its operation.
FIG. 7 is a time chart showing the operation, and FIG. 8 is a time chart showing the operation of the conventional sunroof controller. 1 ... Electric motor, 2 ... Sunroof opening / closing mechanism, 3 ... Pulse generating means, 4 ... Operation switch, 5 ... Connecting means, 13
...... Sunroof, 15 …… Sunroof motor, 19 …… Slip clutch, 23 …… Opening / closing drive shaft, 27 …… Rotating plate, 29…
… Reed switch, 32… Microcomputer, 33…
…battery

Claims (1)

[Scope of utility model registration request] 1. An opening / closing control device for a sunroof, wherein a rotating force of an electric motor is applied to an opening / closing drive shaft connected to a sunroof opening / closing mechanism, and the sunroof is opened / closed by rotation of the drive shaft. A pulse generating means for generating a pulse synchronized with the rotation speed, an operation switch for giving a command for opening or closing the sunroof, and a pulse signal obtained from the pulse generating means at the start of opening / closing of the sunroof by pressing the operation switch An opening / closing control device for a sunroof, comprising: a control means for opening or closing the sunroof continuously when the operation switch is stopped and the operation switch is stopped.