JP3340650B2 - Sunroof control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sunroof control device for controlling the opening and closing of a sunroof provided in a vehicle.

[0002]

2. Description of the Related Art In recent years, vehicles are equipped with an electric sunroof device.

The sunroof device is provided with a position signal output circuit for turning off a position signal when an intermediate position of the sunroof is detected. When the sunroof is fully opened, an automatic closing switch provided on an operation panel is operated. In this case, as shown in the timing chart of FIG.
F is detected, the movement of the sunroof is temporarily stopped, and an intermediate stop buzzer for notifying that the sunroof has reached the intermediate position is sounded.

[0004]

However, in the sunroof device, a sunroof driving block provided with a position signal output circuit for outputting the position signal is provided.
The control block that controls the sunroof while detecting the position signal is separately unitized, and when the ignition switch is turned off, the power supply to the sunroof drive block is cut off. It is configured. For this reason, when the auto-close switch is operated, and while the sunroof is being moved to the intermediate position, the ignition switch is operated to be turned off and power to the sunroof drive block that outputs the position signal is shut off. , The position signal is turned off. Then, there is a problem that the intermediate stop buzzer sounds even though the sunroof has not reached the intermediate position.

[0005] The present invention has been made in view of such conventional problems, and has as its object to provide a sunroof control device capable of preventing false notification.

[0006]

In order to solve the above-mentioned problems, a sunroof control device according to the present invention, when detecting an intermediate position set between a fully open position and a fully closed position of a sunroof, detects the position. A sunroof drive block provided with a position signal output circuit for turning off a signal, and an OF of the position signal when the sunroof is moved to the fully closed position.
With the F detection, the sunroof is stopped and a control block provided with control means for generating an intermediate stop sound is separately unitized. On the other hand, when the ignition switch is turned OFF, the sunroof drive block In a sunroof control device in which power supply is shut off, monitoring means for monitoring a power supply state to the sunroof drive block, and when issuing the intermediate stop sound,
Determining means for determining whether to emit the intermediate stop sound based on the monitoring result of the monitoring means.

That is, when the sunroof control device emits the intermediate stop sound in response to the detection of the OFF of the position signal, the sunroof control device determines whether or not to emit the intermediate stop sound to the sunroof drive block provided with the position signal output circuit. Since the determination is made based on the monitoring result of the monitoring means for monitoring the power supply state, the supply of power to the sunroof drive block is cut off, and the power to the position signal output circuit is cut off. In a state where the signal may be OFF, the generation of the intermediate stop sound can be prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a control system for electrical components in a one-box vehicle provided with a sunroof control device according to the present invention, wherein a front air conditioner amplifier 1 stored inside an instrument and an upper part of a front seat are shown. And a multi-remote remote control amplifier 2 connected to the front air conditioner amplifier 1 via the first communication line L1 and the second communication line L2.
It is composed mainly of.

The front seat air-conditioning amplifier 1 includes an audio 3,
The front air conditioner amplifier 1 controls the front air conditioner 4 and the rear air conditioner 5, and the front air conditioner amplifier 1 includes a room temperature sensor and an outside air temperature sensor for obtaining information necessary for controlling the front and rear air conditioners 4 and 5. Various sensors 6 for controlling the air conditioner are connected. Further, the rear-seat multi-remote control amplifier 2 includes an infrared remote control receiving unit 7 connected to the front seat air-conditioning amplifier 1 via a first communication line L1, and a control unit connected via a second communication line L2. 8, a serial / parallel conversion driver 9 and a tube light display unit 10 connected to both the control unit 8 and the serial / parallel conversion driver 9.

[0010] The infrared remote control receiving section 7 receives serial communication data transmitted from the infrared remote control unit 11;
That is, it has a function of receiving operation signals of the air conditioner, sunroof, audio, and room lamp, and transmitting the received data to the front seat air conditioner amplifier 1 via the first communication line L1. The tube light display unit 10 has a sunroof / lock indicator unit 10a and an air conditioner display unit 10b that are exposed in the vehicle interior. The sunroof lock indicator section 10a is a section for displaying the lock state of the sunroof based on the display signal sent from the control section 8, and includes an error display section 10c for blinking an error display during a sunroof failure inspection, a buzzer 10d, Is attached. In addition, the air conditioner display unit 10b
This is a section for displaying the setting contents of the rear air conditioner 5 based on a display signal sent from the front seat air conditioner amplifier 1 via the communication line L2.

The control unit 8 includes a CPU (not shown), a ROM in which a control program of the CPU and various parameters are stored, and an R which stores various data in accordance with the operation of the CPU.
An input / output device including an AM, a timer, an A / D converter, a D / A converter, and the like is provided, and functions as a sunroof control device of the present invention by operating based on the control program. The control unit 8 includes a front sunroof switch 12, a rear lamp main switch 13, an all-door switch 14, a room lamp switch 15, a sunroof drive block 16, a sunroof lock switch 17, and a room lamp 18 provided in the vehicle interior. Each is connected. The room lamp switch 15 is specifically an on / off switch, a door switch provided on each door, and a light / dark switch. The control unit 8 includes a control block 2 for controlling the sunroof.
The sunroof drive block 16 is connected to the control block 21 via a harness 22.

FIG. 2 is a circuit diagram showing the sunroof drive block 21 and the sunroof drive block 16 provided in the control section 8.
Are individually unitized, and the sunroof drive block 21 is provided on a printed circuit board of a drive motor 23 that drives the sunroof.

That is, the sunroof drive block 16
Is connected to the battery via a power connector 111, a circuit breaker 112, and an ignition switch, which are detachably connected. A power line 113 connected to the positive electrode of the battery includes an open relay 114 and a closed relay 115. Normally-off terminals 116 and 117
Is connected. The negative electrode of the battery includes:
A ground line 118 is connected, and the normally-on terminals 119 and 120 of the open and close relays 114 and 115 are connected to the ground line 118.
Switching terminals 121 and 122 of the open and close relays 114 and 115 selectively connected to the normally-on terminals 119 and 120 and the normally-off terminals 116 and 117.
Is connected to the drive motor 23 that drives the sunroof, the open relay 114 is operated, and the switching terminal 121 of the open relay 114 is switched to the normally-off terminal 116 connected to the power supply line 113. In this case, the sunroof is configured to be opened by the drive motor 23. Further, when the closing relay 115 is operated and the switching terminal 122 of the closing relay 115 is switched to the normally-off terminal 117 connected to the power supply line 113, the sunroof is closed by the driving motor 23. It is configured to: One terminal 125, one of the coils of the relays 114 and 115,
126 is the power supply line 1 via a diode 127
13 and the other terminals 128 and 129
The first and second harness connection terminals 130 and 131 are connected.

The diode 127 connected to the power supply line 113 is provided with a position signal output circuit 135 for detecting the position of the sunroof and outputting the detection results as first to third position signals. The position signal output circuit 135 includes first to third position detection switches 141 to 143 formed by a carbon print pattern provided on the drive motor 23, and each of the position detection switches 141 to 143 has one side. Is connected to the power supply line 113 via pull-up resistors 144-146.
While the other terminal is grounded to the ground line 118. Each detection switch 141 to 14
3 has a Zener diode 147
149 are connected to the bases of the transistors 150 to 152, and the emitters of the transistors 150 to 152 are connected to the ground line 118.
The collectors of the transistors 150 to 152 are connected to the power supply line 11 via pull-up resistors 153 to 155.
3 and the current control resistors 156 to 158
Through the third to fifth harness connection terminals 159 to 161
And the first to third harness terminals 1
59 to 161 are the harnesses 2 which are detachably connected.
2, and is configured to output first to third position signals to the control block 21.

On the other hand, the first to third position detection switches 141 to 143 are configured so that the operation state changes with the rotation of the drive motor 23, and are output from the position signal output circuit 135. As shown in FIG. 3, each of the first to third position signals is ON / OFF / ON when the sunroof is at the fully open position, and ON / OFF / OFF when the sunroof is between the fully open position and the intermediate position.
OFF ・ OFF ・ O
It is configured to be FF. And when it is between the intermediate position and the fully closed position, it is OFF / ON / OFF.
In addition, it is configured to be OFF / ON / ON when in the fully closed position. Therefore, when the sunroof is at the intermediate position, the position signal output circuit 1
Each position signal output from 35 is configured to be all OFF.

As shown in FIG. 2, the control block 21 includes a control circuit 171 mainly composed of a CPU in the control section 8, and a first circuit of the control circuit 171.
To the third input ports 172 to 174, the position detection switches 1 provided on the sunroof drive block 16 are provided.
The first to third detection circuits 175-1 to which the signals from 41 to 143 are input and output to the control circuit 171.
77 are provided.

Sixth to eighth harness connection terminals 181 to 183 to which the harness 22 is connected are connected to inputs of the detection circuits 175 to 177, and pull-down resistors 184 to 186 are connected to each input. Via control block 2
1 is connected to the ground. Also, the transistors 1 are connected to the respective inputs via limiting resistors 191 to 193.
The transistors 94 to 196 are connected to the base, and the emitters of the transistors 194 to 196 are connected to the ground. The collectors of the transistors 194 to 196 are connected to power supply lines in the control block 21 via pull-up resistors 197 to 199, and are connected to the control circuit 171 via Schmitt triggers 201 to 203. First to third input ports 172-1
74.

The control circuit 171 has a first output port 211 for outputting an open control signal when the sunroof is opened, and a second output port 211 for outputting a closed control signal when the sunroof is closed. And the output ports 212 and 212 are connected to the bases of the output transistors 213 and 214, respectively.
The emitters of the output transistors 213 and 214 are connected to the ground in the control block 21, and the collectors are connected to ninth and tenth harness connection terminals 215 and 216 to which the harness 22 is connected. , And the anodes of the first and second detection diodes 217 and 218. Both diodes 217, 218
Are connected to each other, and are connected to an input of a power supply monitoring circuit 219 for determining whether or not power is supplied to the sunroof drive block 16.

The input of the power supply monitoring circuit 219 is connected to the ground in the control block 21 through a pull-down resistor 221 and is connected to a ground through a limiting resistor 222.
It is connected to the base of the monitoring transistor 223.
The emitter of the monitoring transistor 223 is connected to the ground, and the collector is connected to a power supply line in the control block 21 via a pull-up resistor 224 and a fourth terminal provided in the control circuit 171. Is connected to the input port 225.

As a result, an ignition switch for turning on / off the power supply to the sunroof drive block 16 is turned off or the circuit breaker 11 is turned off.
2 is turned off, the power connector 111 for supplying power to the sunroof drive block 16 is disconnected, and the power connector 111 connected to the sunroof drive block 16 is short-circuited to a vehicle body grounded to ground, When the supply of power to the drive motor 23 for driving the sunroof and the supply of power to the open and close relays 114 and 115 for opening and closing the sunroof are interrupted, the application of voltage to the coils of both relays 114 and 115 When the state becomes L level, the power supply monitoring circuit 21
The power supply monitoring signal No. 9 is configured to be at an H level indicating a power supply abnormality.

The operation of the sunroof control device according to the present embodiment having the above configuration will be described with reference to the flowchart shown in FIG. FIG. 4 is a flowchart showing a processing procedure of the CPU provided in the control unit 8, and shows a sunroof process called from a main routine every predetermined time. The sunroof processing will be described with reference to an example in which an automatic close switch provided on an operation panel is operated when the sunroof is fully opened.

That is, when the automatic closing switch is operated to move the sunroof at the fully open position to the fully closed position, first, the first to third position signals output from the position signal output circuit 135 are output. Are OFF, and it is determined whether or not the sunroof is at the intermediate position (S1). If the sunroof is not at the intermediate position, the process returns to the main routine. If the sunroof is at the intermediate position, a change in each of the position signals is observed to determine whether or not the sunroof has reached the intermediate position ( S2).

At this time, if the sunroof has reached the intermediate position, a closing control signal is detected to determine whether or not the sunroof is in the closing operation (S3). On the other hand, when the closing operation is being performed, the control signal is output to OFF to stop the sunroof (S5), and it is determined whether or not the stop time exceeds 100 ms (S6). Is determined to be at the H level (S7), and the step S5 is repeated. At this time, as shown in FIG. 5, when the monitoring signal is at the H level, that is, when the supply of power to the sunroof drive block 16 has been interrupted, the process proceeds to the main routine without waiting for an elapsed time of 100 mS. On the other hand, when the stop time reaches 100 mS without the monitoring signal becoming H level, as shown by a broken line in FIG. 5, an intermediate signal for notifying that the sunroof has reached the intermediate position. A stop sound is sounded by the buzzer 10d (S8), and the process returns to the main routine.

As described above, in the sunroof control device according to the present embodiment, all of the position signals are OFF.
When the intermediate stop sound is issued based on the detection, whether or not the intermediate stop sound is to be emitted is determined by a power supply monitoring circuit that monitors a power supply state to the sunroof drive block 16 provided with the position signal output circuit 135. Since the judgment is made based on the monitoring result of step 219, the ignition switch is turned off during the automatic closing operation of the sunroof, the power supply to the sunroof drive block 16 is cut off, and the power to the position signal output circuit 135 is turned off. This makes it possible to prevent the generation of the intermediate stop sound in a state where all of the position signals may be OFF. Accordingly, the sunroof has reached the intermediate position, as in the prior art, in which an intermediate stop sound is generated when all of the position signals are turned off, regardless of the state of power supply to the sunroof drive block 16. In spite of the absence, it is possible to prevent erroneous notification that an intermediate stop sound is emitted.

In step S4, which is the branch destination when it is determined in step S2 that the sunroof has already reached the intermediate position, or when it is determined in step S3 that the sunroof is not in the closing operation, Determines whether the monitoring signal is at the H level, that is, whether the supply of power to the sunroof drive block 16 is interrupted. At this time, if the supply of power to the sunroof drive block 16 is interrupted, after turning off each control signal for driving and controlling the sunroof (S9), it is determined whether or not the automatic operation is being performed (S10). If the automatic operation is not being performed, the process proceeds to step S12. If the automatic operation is being performed, the automatic flag indicating that the automatic operation is being performed is reset (S11), and step S1 is performed.
Move to 2.

As a result, while the sunroof is being automatically closed, the circuit breaker 112 operates to cut off the supply of power to the sunroof drive block 16 and the power supply to the drive motor 23 for driving the sunroof. After the sunroof has stopped, it is possible to prevent the sunroof from closing again when the circuit breaker 112 returns to the energized state.

Step S12 is a process for determining whether or not transmission data for operating the sunroof has been sent from the infrared remote control unit 11, and each switch provided in the infrared remote control unit 11 is turned on.
When the operation is performed and the transmission data is transmitted, a response sound corresponding to the transmission data is sounded by the buzzer 10d (S13), and the process returns to the main routine. Therefore, as shown in FIG. 6, when the circuit breaker 112 operates, the supply of power to the drive motor 23 is interrupted, and even when the sunroof cannot be driven, the response sound to the operation of the infrared remote control unit 11 can be obtained. Can be issued. Therefore, the circuit breaker 11
In the state where the sunroof cannot be driven due to the operation of the remote control unit 2, the response sound is generated despite the transmission data being transmitted from the infrared remote control unit 11, as in the conventional case where the generation of the response sound is stopped. The inconvenience of being unable to do so can be resolved.

On the other hand, in step S4, when the monitor signal is at the L level, that is, when it is determined that power is being supplied to the sunroof drive block 16, it is determined whether the sunroof is operating. When it is determined (S14) that the sunroof is not in operation, the process returns to the main routine, while when the sunroof is in operation, it is erroneously determined that the sunroof is moving from the intermediate position to the fully closed position. Since there is a fear, it is determined whether or not the operation time exceeds 2 seconds (S15). At this time, if the operation time has not elapsed 2 seconds, the steps S14 and S15 are repeated. On the other hand, if the operation time has elapsed 2 seconds, the control signal for driving and controlling the sunroof is turned off (S16). ), Set a switch failure flag (S17), and return to the main routine.

That is, as shown in FIG. 7, although each of the position detection switches 141 to 143 has failed and the sunroof is not at the intermediate position, each position signal indicates the intermediate position.
Even if FF / OFF / OFF is output and the sunroof is erroneously determined to be moving from the intermediate position toward the fully closed position, each of the position signals indicates a signal indicating the intermediate position. Based on the output for two seconds or more, it can be determined that the position detection switches 141 to 143 have failed. Thus, the sunroof can be reliably stopped.

[0030]

As described above, in the sunroof control device according to the present invention, when the intermediate stop sound is emitted in response to the detection of the OFF of the position signal, whether or not the intermediate stop sound is emitted is determined by the position signal. Since the selection can be made in accordance with the state of power supply to the sunroof drive block provided with the output circuit, for example, while the sunroof is automatically closed, the ignition switch is turned OFF, and the power to the sunroof drive block is turned off. While being shut off, the power of the position signal output circuit is cut off, whereby the intermediate stop sound can be prevented from being generated in a state where the position signal may be turned off. Therefore, regardless of the state of power supply to the sunroof drive block, the intermediate stop sound is generated in response to the detection of the OFF of the position signal, as in the related art in which the sunroof does not reach the intermediate position. It is possible to prevent erroneous notification such as generating a stop sound.

[0031]

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a main part of the embodiment.

FIG. 3 is a diagram showing a relationship between each position signal and a position of a sunroof according to the embodiment.

FIG. 4 is a flowchart showing an operation of the embodiment.

FIG. 5 is a first timing chart for explaining the operation of the embodiment.

FIG. 6 is a second timing chart illustrating the operation of the embodiment.

FIG. 7 is a third timing chart illustrating the operation of the embodiment.

FIG. 8 is a timing chart showing the operation of the conventional sunroof device.

[Explanation of symbols]

 8 control section 16 sunroof drive block 21 control block 10d buzzer 135 position signal output circuit 219 power supply monitoring circuit

Claims (1)

(57) [Claims] When an intermediate position set between a fully open position and a fully closed position of a sunroof is detected, a position signal is output to an OF signal.
A sunroof drive block provided with a position signal output circuit for setting to F, and a control for stopping the sunroof and emitting an intermediate stop sound upon detecting the OFF of the position signal when the sunroof is moved to the fully closed position. A sunroof control device in which the supply of power to the sunroof drive block is cut off when an ignition switch is turned off while the control block provided with the means is individually unitized; Monitoring means for monitoring the power supply state of the power supply, and determining means for determining whether or not to emit the intermediate stop sound based on the monitoring result of the monitoring means when emitting the intermediate stop sound. A sunroof control device characterized by the following.