JP3881669B2 - Control system for vehicle opening / closing body - Google Patents

Description

  The present invention relates to a control system for a vehicle opening / closing body, and more particularly, to a control system for a vehicle opening / closing body that performs stop control of a motor in accordance with an output of a counting means with reference to a position where the opening / closing body is locked.

  2. Description of the Related Art Conventionally, some passenger cars are provided with a slide roof in order to adjust the temperature in the passenger compartment or feel open during driving. The slide roof is driven by a motor, and slides between a fully open position and a fully closed position of a roof opening formed in the fixed roof, and further raises the rear end side of the slide roof from the fully closed position. Tilt operation is performed.

In such a slide roof control, a method of controlling the opening and closing of the slide roof on the basis of the position where the slide roof comes into contact with the roof opening at the slide roof fully open position and the tilt fully open position and is locked is proposed (for example, , See Patent Document 1).
JP 2001-180283 (paragraphs “0023” to “0026”, FIG. 1)

  In the method disclosed in Patent Document 1, since the reference position for counting pulse information is located at a position where the slide roof is in contact with the roof opening and locked, the slide roof is stopped at the fully open position or the fully open tilt position. Occasionally, unpleasant sounds such as collision sounds and drive motor beeps were generated. Such an unpleasant noise can be avoided by using a control method that stops the slide roof just before it makes contact with the roof opening in the fully open position of the slide roof or the fully open position of the tilt.

However, the actual position of the slide roof may deviate from the position on the control system based on the pulse information. If such a misalignment is left unattended, for example, a gap may be generated between the slide roof and the roof opening, resulting in a rain leak.
Therefore, even if the slide roof is stopped just before it contacts the roof opening at the fully open position of the slide roof or the fully open position of the tilt, the slide roof must be misaligned in order to properly control the slide roof. Must be detected.
In particular, there is a need for a slide roof control system that can discriminate between when a foreign object is caught between the slide roof and the roof opening and the slide roof stops and when the slide roof is stopped due to the displacement of the slide roof.

  The present invention has been made in order to solve the above-described problems. The foreign matter is caught between the slide roof and the roof opening, and the slide roof stops due to an external factor, and the slide roof is displaced. It is an object of the present invention to provide a control system for an opening / closing body for a vehicle that can discriminate a stop due to the above and can reliably detect a displacement of a slide roof.

According to the first aspect of the present invention, which solves the above problem, a motor for driving the opening / closing body, a pulse generating means for generating a pulse based on the rotation of the motor, and the opening / closing body are mechanically locked. Counting means for counting up or down the pulses with reference to the lock position, and a control unit for controlling the motor in accordance with an output signal from the counting means, wherein the opening / closing body is either in an auto mode or a manual mode. A control system for a vehicle opening / closing body that opens and closes in one mode, wherein an operating range of the opening / closing body is set as a distance between one lock position and the other lock position. When stopping due to overload detection, the opening / closing mode of the opening / closing body is automatically switched to manual mode, and the opening / closing body is in the normal stop position at the next opening / closing. If stopped, characterized in that it automatically returns to the automatic mode at both ends of the operating range of the movable member. Here, the normal stop position refers to a position set before one lock position and a position set before the other lock position.

  According to the first aspect of the present invention, when the overload detection is stopped only once, the open / close mode of the open / close body (hereinafter also referred to as a slide roof) is automatically switched to the manual mode, and is opened and closed at the next open / close. When the body stops at the normal stop position, it automatically returns to auto mode. As a result, it is possible to distinguish between a stop due to an external factor such as a foreign object getting caught between the slide roof and the roof opening, and a stop due to the slide roof position deviation, and to detect the slide roof position deviation reliably. can do.

The invention according to claim 2 is the control system for a vehicle opening / closing body according to claim 1 , wherein the overload is detected at the same position and stopped a plurality of times, and the pulse count value is within the set range. If they are the same, the pulse information at the lock position is reset and the mode is automatically switched to the manual mode .

  According to the invention described in claim 2, when the opening / closing body is detected to be overloaded at the same position and stopped a plurality of times, and the pulse count value at this time is the same within the set range, the opening / closing mode of the opening / closing body is set. Switch to manual mode automatically and reset pulse information at lock position. Thereby, the position shift of an opening-closing body can be detected reliably.

  According to the present invention, it is determined whether there is a stop due to an external factor such as a foreign object being caught between the slide roof and the roof opening and the slide roof stops, and a stop due to a slide roof position shift. It can be detected reliably.

A control system for a vehicle opening / closing body according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a roof opening provided with a vehicle opening / closing body according to an embodiment of the present invention.
As shown in FIG. 1, a roof opening 2 is provided in a fixed roof 1 of a vehicle, and an opening / closing body 3 (hereinafter referred to as a slide roof) is movably provided in the roof opening 2. Such a slide roof 3 is provided with a slide fully open position and a tilt fully open position for ventilation in the passenger compartment. The slide roof 3 is slid between a slide fully open position and a slide fully closed position when a push-pull cable (not shown) is driven by a motor 4 (see FIG. 3) and the push-pull cable (not shown) moves. Further, a tilting operation for raising the rear end side of the slide roof 3 from the fully closed position is performed.
In addition, the vehicle front and the vehicle rear are shown by the arrows in the figure.

2A and 2B are explanatory views showing the operating position of the slide roof (opening / closing body) 3. FIG. 2A is a tilt fully open position indicating tilt up stop, and FIG. 2B is a slide fully closed stop (tilt down stop). 2 (c) shows the position during the slide operation, and FIG. 2 (d) shows the slide fully open position indicating the slide fully open stop.
As shown in FIG. 2D, when the motor 4 (see FIG. 3) is rotated in one direction from the fully open position of the roof opening 2, the slide roof 3 is rotated as shown in FIG. The roof opening 2 is moved in the closing direction. Then, as shown in FIG. 2B, after the roof opening 2 is in the fully closed position, the slide roof 3 enters the tilt-up mode, and the rear end side of the slide roof 3 is tilted and raised. As shown in FIG. 2 (a), the operation is stopped at the most elevated position (tilt fully open position) at the set pulse count value just before the lock stop (hereinafter, this operating direction of the slide roof 3 is referred to as “tilt up direction”). On the other hand, when the motor is rotated in the reverse direction from the tilt fully opened position, the rear end of the slide roof 3 is tilted and lowered, and the slide roof 3 is in the slide fully closed position as shown in FIG. . When the motor 4 (see FIG. 3) is further rotated in the same direction, the slide roof 3 slides along the guide rail 10 as shown in FIG. 2 (c), as shown in FIG. 2 (d). Furthermore, the slide roof 3 is stopped at the set pulse count value just before the lock stop at the fully open position (hereinafter, this operating direction of the slide roof 3 is referred to as “slide open direction”).

  FIG. 3 is a block diagram showing the configuration of the control system for the slide roof (opening / closing body). As shown in FIG. 3, the control system for the slide roof 3 (see FIG. 2) includes a motor 4 that drives the slide roof 3, pulse generation means 5 that generates pulse information based on the rotation of the motor 4, and the motor 4. The motor drive circuit 8 to be controlled, the counting means 6 for counting up or down the pulses with reference to the lock position where the slide roof 3 is mechanically locked, and the control of the motor 4 according to the output signal from the counting means 6 And a power supply unit 9 that supplies a voltage to the control unit 7 and the counting means 6 and opens and closes the slide roof 3 in either the auto mode or the manual mode.

  The pulse generation means 5 includes a sensor A and a sensor B, and generates pulse information and detects the rotation direction (forward rotation, reverse rotation) of the motor 4 based on the pulse information. That is, on the vertical plane of the rotating shaft (not shown) of the motor 4, two sensors A and B made up of Hall ICs are arranged around the rotor 12 at positions 90 ° apart from each other when viewed from the center of the shaft. Yes. The rotor 12 is connected to the motor 4 coaxially. These sensors A and B each output pulse information synchronized with the rotation of the motor 4, and each output pulse is output with a phase difference of 90 °.

Next, the operation of the control system for the slide roof (opening / closing body) will be described.
FIG. 4 is an explanatory diagram showing the position of the slide roof 3 in the pulse count value obtained by counting the pulse information.
FIG. 4A shows the pulse count value and the position of the slide roof 3. FIG. 4B shows the sensors A and B (Hall IC) and the rotor (a magnet having N and S poles arranged on the surface). 4), and FIG. 4C shows the pulse information generated by the sensors A and B (Hall IC).
Further, in the control system for the slide roof 3 for a vehicle, the forward rotation or the reverse rotation of the motor 4 driven to operate the slide roof 3 is detected by the sensors A and B, and the pulses output by the sensors A and B are detected. The moving means and position of the slide roof 3 are determined by the counting means 6 that counts information.

  As shown in FIG. 4 (a), the control system of the slide roof (opening / closing body) 3 includes a pulse count value (b) when the tilt-up mechanism is locked, a pulse count value (b) when the tilt-up is stopped, and a tilt-down stop. The pulse count value at the time (c), the pulse count value at the time of fully closed stop (d), the pulse count value at the time of fully open stop (e), and the pulse count value (f) at the time of fully open mechanical lock are previously learned in position. . Note that the pulse count value (e) when the fully opened stop is changed from the pulse count value (b) when the tilt up is stopped to the pulse count value in the normal operating range of the slide roof.

As shown in FIG. 4B, the direction in which the rotor 12 rotates normally indicates the slide open direction of the slide roof 3. The direction in which the rotor 12 is reversed indicates the tilt up direction of the slide roof 3.
As shown in FIG. 4 (c), pulse information generated by the sensor A (Hall IC-A) and the sensor B (Hall IC-B) during forward rotation indicates that the sensor B is at L level when the sensor A rises. Alternatively, if the sensor A is at the H level when the sensor A is at the falling edge, it is determined as normal rotation. In addition, the pulse information generated by sensor A and sensor B during reverse rotation is determined to be reverse if sensor B is at H level when sensor A is at the rising edge, or sensor B is at L level when sensor A is at the falling edge. The moving direction of the slide roof 3 is determined.

  In this way, when the operating range of the slide roof 3 is set as a distance between the front of one lock position and the front of the other lock position, and the slide roof 3 stops due to overload detection, the slide roof 3 is opened and closed. The mode is automatically switched to the manual mode, and when it stops at the normal stop position at the next opening and closing, it automatically returns to the auto mode. As a result, it is discriminated whether the slide roof 3 is stopped due to an external factor that causes foreign matter to be caught between the slide roof 3 and the roof opening 2 and the slide roof 3 stops. The positional deviation of the body) can be reliably detected.

When the slide roof 3 is stopped due to overload detection, the open / close mode of the slide roof 3 is automatically switched to the manual mode, and at the next opening / closing, the slide roof 3 is detected and overloaded at the same position and stopped. If the pulse count value is the same within the set range, the pulse information at the lock position is reset. That is, when the slide roof 3 is overloaded at the same position and stopped a plurality of times, and the pulse count value at this time is the same within the set range, the open / close mode of the slide roof 3 is automatically switched to the manual mode. At the same time, the pulse information at the lock position is reset. Thereby, the position shift of a slide roof (opening-closing body) can be detected reliably.
Note that “identical within the set range” means that, for example, the pulse count value is regarded as the same when it is within ± 10 counts.

  The preferred embodiments have been described above. However, the present invention is not limited to the above-described embodiments, and appropriate modifications can be made without departing from the scope of the present invention. For example, although the present embodiment has been described as applied to the control of a slide roof of a vehicle, the present invention is not limited to this, and it goes without saying that the present invention is applied to an opening / closing body that performs an opening / closing operation having a similar function.

It is a perspective view of the roof opening part provided with the slide roof for vehicles concerning one embodiment of the present invention. It is explanatory drawing which shows the operation position of the slide roof for vehicles which concerns on one embodiment of this invention, (a) is a tilt full open position, (b) is a slide fully closed position, (c) is a position in slide operation, (D) has shown the slide fully open position. It is a block diagram which shows the structure of the control system of a slide roof. It is explanatory drawing which shows the position of the slide roof in the pulse count value obtained by counting pulse information, (a) shows the position of the slide roof in a pulse count value, (b) is a sensor (Hall IC) and a rotor. (C) shows pulse information generated by the sensor (Hall IC).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed roof 2 Roof opening part 3 Opening-closing body (slide roof)
4 Motor 5 Pulse generation means 6 Counting means 7 Control section 8 Motor drive circuit 9 Power supply section 12 Rotor (magnet)

Claims (2)

A motor for driving the opening and closing body;
Pulse generating means for generating a pulse based on rotation of the motor;
Counting means for counting up or down the pulse on the basis of a lock position where the opening and closing body is mechanically locked;
A control unit for controlling the motor according to an output signal from the counting means, and a control system for a vehicle opening / closing body that opens and closes the opening / closing body in either an auto mode or a manual mode,
When the operating range of the opening / closing body is set as a distance between the front of one lock position and the front of the other locking position, the opening / closing mode of the opening / closing body is automatically set when the opening / closing body stops due to overload detection. When the opening / closing body is switched to the manual mode and the opening / closing body stops at a normal stop position at the next opening / closing, the vehicle opening / closing body automatically returns to the automatic mode at both ends of the operating range of the opening / closing body. Control system. When overload is detected at the same position and stopped a plurality of times, and the pulse count value is the same within the setting range, the pulse information at the lock position is reset and automatically switched to the manual mode . The vehicle opening / closing body control system according to claim 1.

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