JP2001260654A - Controller of power slide door for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the convenience and safety of a power slide door in a power slide door controller for a vehicle by restricting the opening and closing operation of a door by forbidding the operation of the slide door during traveling by obtaining the information on the vehicle such as traveling conditions even when an ignition.switch is off. SOLUTION: When it is judged that the opening and closing of the power slide door 14 is intended, vehicle traveling condition detecting means (a parkikng brake switch 42, an AT-parking switch 44, a foot brake 46, a speed sensor 48) are operated, then whether the detected vehicle traveling conditions are agreed with predetermined conditions or not is judged, and the power slide door is opened and closed when the presence of the predetermined conditions is judged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a power slide door for a vehicle, and more particularly, to an improvement in the safety of a device capable of opening and closing a slide door even when an ignition switch is not turned on. The present invention relates to a control device for a power slide door for a vehicle.

[0002]

2. Description of the Related Art Recently, a power slide door for a vehicle has been provided which is provided with a slide door which can be slid in the front-rear direction on a side surface of a vehicle, and which is connected to a motor or the like as a drive source so as to be automatically opened and closed. Is known. This device enables the operator (occupant) to activate a drive source by activating a power slide door main switch provided near the driver's seat or door handle, thereby enabling automatic opening and closing control of the slide door. It is.

As a control method of a motor for driving a slide door, a relay is used to open / close a slide door by switching the relay to rotate / reverse a motor as a drive source, or to supply a battery to the motor. For controlling the opening / closing speed of a sliding door by controlling a pulse signal for PWM (Pulse-Width Modulation).

Further, as disclosed in Japanese Patent Application Laid-Open No. H05-50852, an ignition switch is turned on when a slide door is opened and closed, and a predetermined condition is detected. There is a technology that allows the opening and closing of the sliding door.

[0005] This technique is specifically described in an ignition
The switch is turned on, and only when the vehicle is stopped when the main switch is turned on and the transmission lever is in the parking range, the opening operation of the door by the door drive unit is permitted. ing. In other words, power sliding door control is performed while ensuring safety.

However, in the technique described in Japanese Patent Application Laid-Open No. H05-50852, when the ignition switch is turned on, the system is started, and the state of the main switch and other sensor outputs are taken in to open and close the slide door. Had control. Therefore, if the ignition switch is not turned on, the slide door will not operate, so when the driver has baggage and wants to put it in the passenger compartment from the slide door side, put the baggage down once and go to the driver's seat. There is no alternative but to open and close the slide door after turning on the ignition switch, which is inconvenient.

Therefore, when the main switch of the sliding door is turned on and the output of the opening / closing switch or the encoder for detecting the displacement such as the opening / closing speed and the opening / closing direction of the door is generated, even if the ignition switch is turned off, A technique for automatically controlling opening and closing of a door is also known.

[0008] Specifically, this technique is applied to an ignition system.
Even if the switch is off, if the main switch is turned on and the output of the open / close switch or encoder is generated,
A voltage is supplied from the backup power supply to the CPU in response to the signal, the state is changed from the sleep mode to the wake-up state, and the slide door can be opened and closed by activating the CPU.

In this technique, in order to always save the power consumption of the battery, unless the ignition switch is turned on, a signal from another input state confirmation sensor is not input to the microcomputer. Had a configuration.

When the ignition switch is turned off, the microcomputer is always in a sleep mode to save power consumption of the battery. Therefore, the main switch of the slide door is turned on, wakes up and the backup is performed. A voltage is supplied from a power supply to the microcomputer. However, in this case, since the ignition switch is not turned on, the microcomputer itself erroneously recognizes that the vehicle is completely stopped, and starts opening / closing control of the sliding door.

[0011]

As described above, in the above-mentioned prior art, since the presence / absence of the running state of the vehicle is determined from the on / off state of the ignition switch, short-circuiting, disconnection, I / O If the ignition switch signal is lost due to an abnormality in the F circuit or the like, there is a risk that the slide door is opened even when the vehicle is running.

That is, in order to ensure safety, it is necessary to determine a running state by taking in a foot brake signal, a parking brake signal, a transmission neutral / parking signal, a speed signal, and the like. In this case, since the microcomputer is in the sleep mode when the ignition switch is turned off because the ignition switch is turned on / off in some cases, the running state cannot be determined in some cases.

Therefore, the present invention ensures safety even when the ignition switch is in the off state, thereby prohibiting the operation of the sliding door during traveling by enabling the information of the vehicle such as the traveling state to be captured. It is another object of the present invention to provide a control device for a power slide door for a vehicle with improved convenience.

[0014]

According to a first aspect of the present invention, there is provided a power sliding door control device for a vehicle, wherein the power sliding door detects whether opening and closing of the power sliding door is instructed. Door opening / closing instruction detecting means, vehicle running state detecting means for detecting a running state of the vehicle when the power sliding door opening / closing instruction detecting means detects opening / closing of the power sliding door, and It is configured to determine whether or not the running state of the vehicle is in a predetermined state, and when the vehicle is in the predetermined state, a power sliding door opening / closing means for opening and closing the power sliding door is provided.

As described above, when it is detected that the opening / closing of the power slide door is instructed, the vehicle running state detecting means for detecting the running state of the vehicle, and the detected running state of the vehicle is determined by a predetermined value. The power slide door is opened and closed when it is determined that the vehicle is in the predetermined state, so that even when the ignition switch is in the off state, information on the vehicle such as the running state can be captured. By prohibiting the operation of the slide door during traveling, it is possible to provide a control device for a vehicle power slide door with improved convenience while ensuring safety.

Here, the power sliding door opening / closing instruction detecting means specifically means the displacement of the sliding door when the power sliding door opening / closing switch is turned on by an occupant or an encoder or the like, that is, the opening / closing speed, opening / closing acceleration. This means that the sliding door is being opened and closed due to changes in position, opening and closing directions, and the like. Specifically, the predetermined state means that the vehicle speed is zero, the brakes (foot brake, parking brake, parking brake of AT, etc.) are turned on, and the electric power for driving the motor for opening and closing the power slide door is mounted on the vehicle. The condition of whether or not the battery remains is shown. In this application, in order to open and close the power slide door, it is a precondition that the main switch is turned on.

According to a second aspect of the present invention, the vehicle running state detecting means includes at least a vehicle speed detecting means for detecting a vehicle speed of the vehicle, and a brake detecting means for detecting whether or not a brake device of the vehicle is operating. The power sliding door opening / closing means is configured to open and close the power sliding door when the detected vehicle speed is equal to or lower than a predetermined value and when it is detected that the brake device is operating.

Thus, in addition to the above-described operation, the safety when opening and closing the power sliding door can be further enhanced.

In a preferred embodiment of the present invention, the vehicle further comprises an open / close switch provided at an appropriate position on the vehicle, and a displacement detecting means for detecting a displacement of the power sliding door. When at least one of the open / close switch and the displacement detection means generates an output, it is determined that the power slide door is intended to be opened / closed.

Thus, in addition to the above-described operation, the convenience of opening and closing the power slide door can be further enhanced.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a control apparatus for a power sliding door for a vehicle according to an embodiment of the present invention.

FIG. 1 is an overall configuration diagram showing a vehicle equipped with a vehicle power sliding door control device 1 according to one embodiment of the present invention. The control device for the vehicle power sliding door is an electronic control unit (hereinafter referred to as "ECU").
The ECU 10 includes a microcomputer (not shown), and is disposed at an appropriate position near a power slide door 14 in a vehicle 12 as shown in FIG. FIG. 2 is an explanatory diagram showing the configuration of the control device 1 of the power sliding door for a vehicle in detail mainly on the ECU 10.

The ECU 10 includes a power slide door motor (hereinafter, referred to as a "motor") 16 for opening and closing the power slide door 14, and an electric type for detecting a displacement such as a door opening / closing speed and an opening / closing direction. Encoder 18
(Power sliding door opening / closing instruction detecting means), a non-reversing switch 20 for detecting a reversing / non-reversing area, and a rotation of the motor 16 which are arranged at appropriate positions on a sliding portion (not shown) of the power sliding door 14. An electromagnetic clutch (FIG. 2) connecting between a motor 16 and a drive pulley (not shown) for reducing the number and increasing its output torque.
, Only a circuit for energizing the electromagnetic clutch is shown).

In the interior of the vehicle, a main switch 24 for permitting opening and closing of the power slide door 14, that is, enabling the driving of the door, and the power slide door 14 are provided at appropriate positions around the driver's seat (not shown). An open / close switch 26 (power sliding door opening / closing instruction detecting means) for inputting the opening / closing of the door is provided. A power slide door 14 is provided at an appropriate position on a meter panel (not shown).
Is provided with a warning lamp 28 for notifying the driver of an abnormality. Further, a buzzer 30 is provided at an appropriate position in the vehicle cabin so that a passenger or the like can be alerted when opening and closing the power slide door 14.

On the vehicle body side around the power slide door 14, a closure unit 32 for detecting a half door or the like and instructing retraction is provided. When the door is retracted at an appropriate position on the side of the power slide door 14 according to a retract instruction from the closure unit 32, or when the power slide door locked at the fully closed position is opened, the junction (not shown) is opened. A release motor 34 for releasing is provided.

At the front end of the power slide door 14 in the traveling direction of the vehicle, the courtesy switch 36 indicating that the power slide door 14 is not in the fully closed state, that is, in the open state, and the power slide door moves in the closing direction. A touch switch 38 is provided for detecting the pinching of an object or a human body during the operation.

At an appropriate position in the ECU 10, an inclination sensor 4 for detecting an inclination state of the vehicle 12 with respect to the gravitational axis is provided.
0 is provided. Further, a parking brake switch (brake detecting means) 42 for detecting whether or not the vehicle is in a parking brake state is provided near a side brake (not shown) provided at an appropriate position near the driver's seat of the vehicle 12.

At an appropriate position near a shift lever (not shown), an AT-parking switch (brake detecting means) 44 for detecting whether or not the shift is in a parking state is provided. Further, a foot brake switch (brake detecting means) 46 for detecting whether or not the foot brake is operated is provided near a foot brake (not shown) provided at an appropriate position near the driver's seat. Further, a vehicle speed sensor (vehicle speed detecting means) 48 for detecting a vehicle speed is provided at an appropriate position of a drive system (not shown) of the vehicle.

The detection values of the sensors and the switches described above are subjected to appropriate signal processing directly or via an interface described later, and thereafter, the ECU 1
The data is input to the CPU 10a provided in the memory 0 and is stored in the memory 10b. In FIG. 1, only a part of the display of the sensors and the like is shown for simplification.

As shown in FIG. 2, the ECU 10 is supplied with a voltage from a power supply (vehicle battery, for example, about 12 V) 50, and is provided with a ground 52 to ground each circuit in the control device. The ECU 10 is connected to an ignition switch 54 for starting an internal combustion engine 53 mounted at an appropriate position of the vehicle 12 and when the ignition switch 54 is turned on, the CPU 10a is woken up from the sleep mode state and the sensor 10 Read the output of switches and so on.

FIG. 3 is an explanatory diagram in which components of the ECU 10 that well show the features of the present invention are extracted and shown.

In the ECU 10, the encoder 18 is connected to a port a of the CPU 10a via a first interface (shown as "I / F") 62, and the open / close switch 26 is connected to the second interface 64. Connected to the port b of the CPU 10a. The outputs of the encoder 18 and the open / close switch 26 are output from the CPU 10a.
The signal is internally processed as an interrupt signal and output from a port (i) described later.

The main switch 24 is connected to the port c of the CPU 10a via the third interface 66. In the power sliding door control device 1 according to the present invention, the main switch 24 is turned on to start the operation.

The parking brake switch 42,
AT-parking switch, foot brake switch 4
The sixth and vehicle speed sensors 48 are connected to ports d, e, f, and g of the CPU 10a via fourth, fifth, sixth, and seventh interfaces 68, 70, 72, and 74, respectively.

Further, the ignition switch 54 receives the supply of voltage from the power supply 50 and is connected to the port h of the CPU 10a through the eighth interface 76. When the ignition switch is turned on, C
Start the PU. A power supply line branches from between the power supply 50 and the ignition switch 54. The branch is connected to a relay 80 via a power supply IC 78 which is a circuit for lowering the voltage of 12V to 5V.

The relay 80 is connected to the port i of the CPU 10a. When a low-level signal is output from the port i and a low-level signal is input to the relay 80, the relay 80 is kept off. The relay 80 is a CP
The high-level signal output from the port i of U10a is input and turned on.

With the above configuration, when an interrupt signal is input, the relay 80 is turned on.

Next, the supply voltage system in FIG. 3 will be described. The power sources A to D shown in FIG. 3 indicate the potential of the illustrated portion or the potential applied thereto, and are the portions to which the internal power source is actually connected.

The power source A supplied to the first, second, and third interfaces 62, 64, 66 and the substation circuit 78 is a constant power source of about 5 V that is constantly supplied to the ECU 10. The CPU 10a is also operated by the power supply A.

A power source B energized to the illustrated portion
Is a main power supply (about 5 V) in the ECU 10 that is energized when either the ignition ON signal or the interrupt signal is input to the CPU 10a.

The power source C is supplied to a cell motor (not shown) provided in the vicinity of the internal combustion engine 53 of the vehicle 12 and the like.
Is a 12V power supply on the vehicle side, which is energized to drive the starter motor when is turned on.

The power supply D shown in the position as shown in FIG.
A load driving 12V power supply that is energized when one of the ignition ON signal and the interrupt signal is input to the CPU 10a, and is energized to drive a load such as the motor 16 and the release motor 34. It is.

Next, the operation of the above-described vehicle power sliding door control device 1 will be described.

FIG. 4 is a flowchart showing the operation of the power sliding door control device 1 for a vehicle according to the present embodiment. The flow chart shown in FIG.
When 0a is in a sleep mode state (described later), it is activated every time the above-described interrupt signal is input.

Before starting the description of the flow chart of FIG. 4, conditions for shifting the CPU 10a to the sleep mode will be described.

As described above, in order to save the power consumption of the CPU 10a, when a specific condition is satisfied,
It is configured to shift to a state where the input system is limited, that is, a sleep mode state. Specifically, in the CPU 10a according to the present embodiment, the only signals that can be input in the sleep mode state are the interrupt signal and the main switch on / off signal in FIG.

The conditions under which the CPU 10a shifts from the normal start-up (wake-up state) to the sleep mode state are as follows. Condition (1) Ignition switch 54 is off Condition (2) Clutch (not shown) is off When all of the above conditions (1) and (2) are satisfied, Condition (a) Main switch 24 is off Condition (b) 1 after the main switch 24 is turned on
After 0 sec Condition (c) 10 sec after the door open / close switch 26 is turned on when the main switch 24 is off Condition (d) Open / close by the encoder 18 when the main switch 24 is off 10 seconds after the detection of the direction pulse When any one of the above (a), (b), (c), and (d) is satisfied, the state shifts from the wake-up state to the sleep mode state.

The conditions for shifting from the sleep mode state to the wake-up state are as follows. Condition (1) Ignition switch 54 is on Condition (2) Main switch 24 is on Condition (3) Open / close switch 26 is on Condition (4) Open / close direction pulse detected by encoder 18 Above (1), ( When any one of 2), (3), and (4) is satisfied, the state shifts from the sleep mode state to the wake-up state.

Referring to the flow chart of FIG. 4, first, in S10, it is determined whether or not the output of the open / close switch 26 or the pulse width output of the encoder 18 has been input.
That is, it is detected whether or not an interrupt signal has occurred.

Next, proceeding to S12, when the above-mentioned interrupt signal is output in S10, the CPU is shifted from the sleep mode state to the wake-up state, and the outputs of all the sensors and switches are made ready for input.

Then, the program proceeds to S14, in which the above-mentioned interrupt signal is output. Referring to FIG. 3, first, C
A high level signal is output 4 from the port i of the PU 10a to the relay 80 and turned on. This activates the fourth to seventh interfaces 68, 70, 72, 74,
That is, the detection values of the parking brake switch 42, the AT-parking switch, the foot brake switch 46, and the vehicle speed sensor 48 are input.

Then, the program proceeds to S16 in which the parking brake switch 42, AT-
The outputs of the parking switch, the foot brake switch 46, and the vehicle speed sensor 48 are read, and the process proceeds to S18, where
It is determined whether the opening / closing operation of the power slide door 14 should be permitted or prohibited based on the signal read in step 16 and the voltage value of the supply voltage 50.

The conditions for permitting the execution of the opening / closing operation of the power slide door 14 are as follows. Condition (1) The main switch is on. Condition (2) The parking brake switch 42 is on, the AT-parking switch 44 is on, or the foot brake switch 46 is on. Condition (3) The vehicle speed detected by the vehicle speed sensor 40 is Zero km /
h Condition (4) The voltage of the power supply 50 is 9 V or more When all of the above conditions (1) to (4) are satisfied, regardless of whether the ignition switch 54 is on or off, a pulse output from the encoder 18 or open / close is performed. Switch 2
The opening / closing operation of the power slide door 14 is started by detecting the opening / closing command output from 6.

Returning to the description of the flow chart of FIG.
At 18, predetermined conditions, especially the power sliding door 14
If all of the opening operation execution conditions (1) to (4) are satisfied, the process proceeds to S20, and a permission command for opening and closing the power slide door 14 is issued. If at least one of the conditions (1) to (4) for performing the opening operation of the power slide door 14 is not satisfied, the process proceeds to S22, and a prohibition command for opening and closing the power slide door 14 is issued.

In the first embodiment, since the configuration is as described above, even if the ignition switch is in the off state, the operation of the sliding door during traveling is performed by taking in information of the vehicle such as the traveling state. By prohibiting, it is possible to improve convenience while ensuring safety.

FIG. 5 is a block diagram of a control unit 2 for a power sliding door for a vehicle according to a second embodiment of the present invention, which illustrates the features of the present invention, mainly focusing on the CPU 10a. It is explanatory drawing similar to. The difference from the configuration according to the first embodiment is that a transistor 80T is used instead of the relay 80. The remaining configuration is the same as in the first embodiment, and will be described using the same reference numerals.

In the second embodiment, the ECU 10
Within 0, the port i of the CPU 10a is connected to the base terminal of the transistor 80T. Here, when a low level signal is output from the port i, the transistor 8
0T is not energized. When a high-level signal is output from port i, transistor 80T is energized, and power supplies B, C, and D are energized.

In the second embodiment, the configuration is as described above, so that the same effect as the control device for the power sliding door for a vehicle according to the first embodiment can be obtained.

As described above, in the embodiment of the present invention, the control devices 1 and 2 for the power sliding door 14 of the vehicle are used.
, Power slide door open / close instruction detecting means (main switch 24, encoder 18, open / close switch 26, CPU 10a, S10) for detecting whether or not the power slide door is opened / closed; Means that the opening / closing of the power slide door is instructed by means (CPU 10a, S1
2 to S14), vehicle running state detecting means (parking brake switch 42, AT-parking switch 44, foot brake 46, vehicle speed sensor 48, CPU 10a) for detecting the running state of the vehicle, and the detected vehicle It is determined whether or not the traveling state of the vehicle is in a predetermined state. More specifically, it is determined whether or not the vehicle is in a stopped state. When the vehicle is in the predetermined state, the power for opening and closing the power slide door is determined. The slide door opening / closing means is provided.

The vehicle running state detecting means includes at least a vehicle speed detecting means (vehicle speed sensor 48) for detecting a vehicle speed of the vehicle, and a brake detecting means (for detecting whether or not a brake device of the vehicle is operating). Parking brake switch 42, AT-parking switch 44,
The power sliding door opening / closing means includes a foot brake 46 and a CPU 10a), and the power sliding door opening / closing means detects that the detected vehicle speed is equal to or less than a predetermined value, more specifically, zero or a value close to zero, and that the brake device is operating. Then, the power slide door is opened and closed.

Further, an open / close switch (open / close switch 26, CPU 10
a) and displacement detecting means (encoder 18, CPU 10a) for detecting displacement of the power sliding door,
The power sliding door opening / closing instruction detecting means is configured to determine that the power sliding door is intended to be opened or closed when at least one of the open / close switch and the displacement detecting means generates an output (CPU 10a, S14, S16). .

[0062]

According to the first aspect of the present invention, even when the ignition switch is in the off state, the operation of the sliding door during traveling is prohibited by allowing information of the vehicle such as the traveling state to be taken in. Further, it is possible to provide a control device for a power slide door for a vehicle, which is improved in convenience while ensuring safety.

According to the second aspect of the invention, in addition to the effect of the first aspect, the safety when opening and closing the power slide door can be further enhanced.

According to the third aspect of the invention, in addition to the effect of the first aspect of the invention, the convenience of opening and closing the power slide door for the vehicle can be further enhanced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a vehicle equipped with a power sliding door control device according to one embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a relationship between input and output of signals in an ECU constituting the control device for the power sliding door for a vehicle.

FIG. 3 is an explanatory diagram in which components in the apparatus of FIG. 2 that well show the features of the present invention are extracted and illustrated.

FIG. 4 is a flowchart showing the operation of the control device for the power sliding door for a vehicle according to one embodiment of the present invention.

FIG. 5 is a block diagram of a control device for a power sliding door for a vehicle according to a second embodiment of the present invention, which mainly illustrates a CPU by extracting components that well show features of the present invention.
It is explanatory drawing similar to.

[Explanation of symbols]

 1, control device for power slide door for vehicle 10, 100 electronic control unit (ECU) 10a CPU 10b memory 12 vehicle 14 power slide door 16 (power slide door) motor 18 encoder (displacement detection means) 24 main switch 26 open / Closing switch (open / close switch) 42 parking brake switch 44 AT-parking switch 46 foot brake switch 48 vehicle speed sensor (vehicle speed detecting means) 50 power supply 53 internal combustion engine 54 ignition switch 80 relay 80T transistor

Continued on the front page (72) Inventor Kenji Kamada 2021-8 Saginoya East, Hozakuji Temple, Takanezawa-cho, Shioya-gun, Tochigi Prefecture F-term in Keihin Tochigi Development Center (reference) 2E052 AA09 BA01 CA06 DA02 DB02 EA15 EB01 GA02 GA08 GA10 GB06 GB12 GB15 GC01 GC02 GC03 GC05 GC06 GC07 HA05 KA27 LA01

Claims (3)

[Claims] 1. A control system for a power sliding door of a vehicle, comprising: a. Power sliding door opening / closing instruction detecting means for detecting whether opening / closing of the power sliding door is instructed, b. Vehicle running state detecting means for detecting a running state of the vehicle when it is detected by the power sliding door opening / closing instruction detecting means that opening / closing of the power sliding door is instructed; and c. A power sliding door opening / closing means for determining whether the detected traveling state of the vehicle is in a predetermined state, and opening and closing the power sliding door when in the predetermined state. Control device for sliding door. 2. The vehicle driving state detecting means includes: at least d. Vehicle speed detecting means for detecting a vehicle speed of the vehicle; and e. Brake detecting means for detecting whether or not the brake device of the vehicle is operating, wherein the power sliding door opening / closing means is configured such that the detected vehicle speed is equal to or lower than a predetermined value and the brake device is operating. 2. The control device for a power slide door for a vehicle according to claim 1, wherein the power slide door is opened and closed when the power slide door is detected. 3. The method of claim 2, further comprising: f. An open / close switch installed at an appropriate position on the vehicle; and g. Displacement detecting means for detecting displacement of the power sliding door, wherein the power sliding door opening / closing instruction detecting means intends to open / close the power sliding door when at least one of the open / close switch and the displacement detecting means generates an output. 3. The control device for a power slide door for a vehicle according to claim 1, wherein it is determined that the power slide door is closed.