JP2021063431A - Door opening and closing device for vehicle - Google Patents

Abstract

To provide a door opening and closing device for a vehicle capable of carrying out work without trouble while a rear seat door is open.SOLUTION: A detection unit 50 comprises: an ultrasonic sensor 76 for detecting a left foot F of a user M; and a control part (detection ECU 70) for determining an open/closed state of a rear slide door 20 that is triggered when the ultrasonic sensor 76 detects the left foot F. The control part holds the rear slide door 20 in an open state instead of driving the rear slide door 20 to a closed state, when a front door 16 is in the open state when the open/closed state of the rear slide door 20 is determined to be in the open state.SELECTED DRAWING: Figure 5

Description

According to the present invention, the presence of a user located near the door of the vehicle is detected without the user using a hand, and the door of the vehicle is changed from the locked state to the unlocked state and then opened. The present invention relates to a vehicle door opening / closing device including a non-contact detection unit for the purpose.

As a detection unit that detects the presence of a user standing near the door of a vehicle, for example, in Patent Document 1, a laser beam is emitted from a laser beam transmitter / receiver mounted directly under the rear door of the vehicle toward the ground. Irradiation has been proposed (Patent Document 1 [0025]).

In Patent Document 1, the laser beam radiated toward the ground is locked and closed under authentication with an electronic key, triggered by the user moving the foot so as to block the laser beam with the foot. A hands-free door opening device that opens a rear seat door by a short distance (referred to as partially open) after changing the rear seat door from a locked state to an unlocked state is disclosed (Patent Document 1). [0025], [0055], FIG. 9).

JP-A-2007-162459

By the way, in the above-mentioned Patent Document 1, for example, when the rear seat door is in the open state, the user gets into the front seat in the car with the front door open, or loads the luggage in the front seat in the car or the like. That is, when the rear seat door is open and the front seat door is open, the user does not have the intention to close the rear seat door. Instead, when the laser beam is moved so as to block it with the foot, there is a risk that the rear seat door will be closed (accidentally).

In this way, even though there is no intention to close it, in other words, it is uncomfortable for the rear door to change from the open state to the closed state even though the rear door is being kept open, which is an improvement. There is room.

The present invention has been made in consideration of such a problem, and when a person or the like who gets into the front seat is detected, it is possible to perform the work or the like with the rear seat door open without any trouble. It is an object of the present invention to provide a door opening / closing device for a vehicle.

The vehicle door opening / closing device according to the present invention includes a front opening and a rear opening formed on a side portion of a vehicle body, a front door that opens and closes the front opening, and a rear slide door that opens and closes the rear opening. A door drive mechanism that automatically opens and closes the rear slide door, and a detection unit that is provided at a lower position on the side of the vehicle body to open and close the rear slide door via the door drive mechanism. It has a sensor that detects the foot of the door and a control unit that determines the open / closed state of the rear slide door by using the detection of the foot as a trigger, and the control unit sets the open / closed state of the rear slide door to the open state. If the front door is in the open state at the time of determination, the rear slide door is not driven toward the closed state and the rear slide door is kept in the open state, and the open / closed state of the rear slide door is determined to be in the open state. When the front door is closed, the rear slide door is driven toward the closed state, and when the open / closed state of the rear slide door is determined to be closed, the rear slide door is locked. If the rear slide door is unlocked and driven toward the open state, and the rear slide door is unlocked when the open / closed state of the rear slide door is determined to be closed, the rear slide door should be locked. It is characterized by.

According to the present invention, when the rear seat door is open and the front door is open, the rear door is closed when the detection unit detects the presence of a person's (user, etc.) foot. Since it is kept open without being driven toward, it is possible to prevent the rear door from being driven toward the closed state even though there is no intention to close the rear door. It is possible to perform work with the rear door open without any trouble, and it is possible to prevent people (users, etc.) from feeling uncomfortable.

It is a schematic block diagram of the door opening and closing device for a vehicle which concerns on this embodiment. FIG. 2A is a schematic side view showing a state in which the sliding door is closed, and FIG. 2B is a schematic side view showing a state in which the sliding door is open. It is explanatory drawing of the usage scene assumed by the detection unit. It is explanatory drawing of the circuit structure of the power mode changeover switch. It is a flowchart provided for the detailed operation explanation of the door opening / closing device for a vehicle. It is operation explanatory drawing from the time of locking of a sliding door to the time of opening of an unlocking door. It is operation explanatory drawing from the door opening time to the door closing time, and from the door opening time to the door closing lock time of the sliding door. It is a flowchart provided for the operation explanation of the detection unit.

Hereinafter, a vehicle door opening / closing device according to the present invention will be described in detail with reference to the accompanying drawings with reference to suitable embodiments.

[Constitution]
FIG. 1 is a schematic block diagram of a vehicle door opening / closing device 10 according to this embodiment.

2A is a schematic side view showing, for example, a state in which the slide door (rear slide door) 20 on the passenger seat rear side of the vehicle 12 having a right-hand drive is closed, and FIG. 2B is the slide of the vehicle 12. It is a schematic side view which shows the state which the door 20 is open.

In addition, for the sake of avoidance of complexity and convenience of understanding, in this embodiment, the configuration and operation of the vehicle door opening / closing device 10 will be described by taking the front door 16 and the sliding door 20 on the passenger seat side of the vehicle 12 as an example. The configuration and operation of the front door and the sliding door on the driver's side are the same as those on the passenger's side, and thus are included in the present invention.

As shown in FIG. 1, the vehicle door opening / closing device 10 can basically detect the vehicle door opening / closing device main body (door drive mechanism) 302 in the vehicle 12 and the user (person) in a non-contact manner. It is composed of a detection unit 50 and a portable device 200 that can be carried by a user.

As shown in FIGS. 2A and 2B, the front door 16 of the vehicle 12 has a front left opening (front opening) 102 of the vehicle body 100, and the user uses the door handle 124 of the front door 16 (outer door of the front door 16). It is a hinged door that opens and closes manually by grasping the handle).

On the other hand, the sliding door 20 of the vehicle 12 has a rear left opening (rear opening) of the vehicle body 100 when the user pulls the outer door handle (hereinafter, may be abbreviated as ODH) 154 of the sliding door 20. It is a sliding door that opens 104.

In practice, the sliding door 20 is so-called electrically driven and automatically when the user pulls the outer door handle 154 of the sliding door 20 on condition that the sliding door 20 is in the closed and unlocked state. Alternatively, it is a so-called power slide door that automatically opens when the open / close button (APS) 208 of the portable device 200 constituting the smart key type entry system is pressed.

As will be described in detail later, in the slide door 20 according to this embodiment, when the slide door 20 is in the closed state and the unlocked state, the detection unit 50 detects the insertion / removal of the user's foot. Is also controlled so that it does not open.

As shown in FIG. 1, the smart key type entry system includes an authentication ECU (Electronic Control Unit) 24, which is an in-vehicle device, and a portable device 200 carried by a user.

The authentication ECU 24 is a computer including a microcomputer, and has a CPU (central processing unit), a storage device (storage unit) 25 such as a memory ROM (including EEPROM) and a RAM (random access memory), and a time measuring device (time counting). It has a timer as a part) and other input / output devices such as an A / D converter and a D / A converter as needed, and the CPU reads and executes the program recorded in the ROM. It functions as various function realizers (function realization unit, function realization means), for example, a controller (control unit), a calculation unit (calculation unit), a processor (processing unit), and the like.

The other ECUs described below also have the same configuration as the above-mentioned authentication ECU 24.

The authentication ECU 24 further includes a transmission / reception circuit (not shown) for wireless authentication communication with the portable device 200.

The portable device 200 has an ECU (portable device ECU) 224, and the portable device ECU 224 also serves as an authentication ECU (authentication control unit) for the portable device 200. An ID for mutual authentication of the portable device 200 is stored in the storage device 225 (EEPROM) of the portable device ECU 224, and the same ID as the ID for mutual authentication is stored in advance in the storage device 25 (EEPROM) of the authentication ECU 24 of the vehicle 12. It is also remembered.

In the portable device 200, the unlock button (also referred to as an unlock button) 204 of the front door 16 and the slide door 20 and the lock of the front door 16 and the slide door 20 appearing on the appearance and can be pressed by the user or the like, respectively. In addition to being provided with an operation unit consisting of a button (also referred to as a lock button) 206, an open / close button 208 (passenger seat side) of the slide door 20, and an open / close button 210 (driver's seat side), each of which is not shown and is visible to the user or the like. Indicators such as possible LEDs, buzzers and speakers that can be heard by users and the like are provided.

Inside the portable device 200, the portable device ECU (which also serves as an authentication ECU (authentication control unit)) 224 including a transmission / reception circuit for wireless authentication communication with the authentication ECU 24 of the in-vehicle device is provided.

The unlock button 204, the lock button 206, and the open / close buttons 208, 210 are electrically connected to the portable device ECU 224.

As is known, in the smart key entry system, when the user carries the portable device 200 and approaches the front side of the front door 16 of the vehicle 12, the vehicle does not require the user to operate any button of the portable device 200. It is set to the unlock standby mode of the front door 16 of the 12 or the unlock standby mode of the sliding door 20.

In order to automatically unlock (unlock) the vehicle door (front door 16 or sliding door 20) under this unlock standby mode, the user simply holds the portable device 200 which is an automatic response device. Then, the vehicle 12 walks into a predetermined radio frequency communication range (near the front side of the front door 16 and is a portable device detection range 80 described later). As a result, the authentication ECU 24 and the portable device 200 perform authentication communication as to whether or not the mutual IDs are the same.

After the authentication communication is successfully completed (mutual IDs are the same), when the user presses the door lock / unlock button 126 (door lock sensor) provided on the door handle 124 of the front door 16, for example, the front The lock (sliding door lock) 222 of the door lock 122 and the sliding door 20 is unlocked (unlocked). After that, when the user pulls the door handle 124, the front door 16 opens.

On the other hand, when the sliding door 20 is unlocked, the user pulls the outer door handle (ODH) 154, or when the sliding door 20 is locked, the user presses the open / close button 208 of the portable device 200. , Can be opened automatically.

In addition to the above-mentioned authentication ECU 24, the vehicle door opening / closing device 10 includes a vehicle ECU 32 (vehicle control unit), a door lock ECU 34 (door lock control unit), and a sliding door drive ECU 36 that are interconnected via an in-vehicle communication line 30. Each ECU (sliding door drive control unit) is provided.

The detection unit 50 of the vehicle door opening / closing device 10 according to this embodiment is not attached at the production factory line of the vehicle 12, but is commercially available and can be attached by a dealer or the like as an option that can be retrofitted (retrofitting option). It may be installed in line.

As shown in FIG. 1, the detection unit 50 includes an ultrasonic sensor 76, a buzzer 78, and a detection ECU 70 (detection control unit) including a set of a transmitter / receiver 72 having the same specifications and a transmitter / receiver 74.

The transmitter / receiver 72 and the transmitter / receiver 74 are arranged along the vehicle length direction of the vehicle 12, as shown in FIGS. 2A, 2B and 3. The transmitter / receiver 72 and the transmitter / receiver 74 are both transmission / reception types configured to alternately switch between transmission and reception of ultrasonic waves at a predetermined cycle (for example, every several hundred milliseconds), and are dedicated to transmission or reception. It has the advantage that it can be used for a longer period of time than when it is used exclusively. In the figure, reference numeral R indicates a detection range (detection region) that can be detected by the ultrasonic sensor 76.

The detection unit 50 is electrically connected to the vehicle door opening / closing device main body 302 in the vehicle 12 via the connector 71 by wire, and as shown in FIGS. 2A and 2B, the front door 16 in the vehicle body 100 It is fixed to the lower side (under the front side sill 17) by a fastening member (not shown) near the lower side (rear side sill 18) of the slide door 20 so that the user M's left foot F can be easily detected in and out. ..

FIG. 3 is an explanatory diagram of a usage scene assumed by the detection unit 50. The detailed operation related to the detection unit 50 will be described later.

For example, in a locked state of the front door 16 and the sliding door 20 of the vehicle 12 parked on the ground 300, a user who carries the portable device 200 in a pocket of clothes or the like and holds a luggage B and both hands are closed. M puts the left foot F under the ultrasonic sensor 76 (predetermined detection range R) under the front door 16 (under the front side sill 17) (step a).

Next, the left foot F is pulled out from under the ultrasonic sensor 76 (a predetermined detection range R between the ultrasonic sensor 76 and the ground 300) within a few seconds. This left foot F insertion / removal operation {kick motion (kick motion) is called. } Is used as a trigger, and the portable device 200 (portable device ECU 224) and the authentication ECU 24 start authentication communication (step b).

Practically, in the detection of the insertion / removal operation of the left foot F or the like by the ultrasonic sensor 76, the reflection of the ultrasonic wave 77 (transmitted wave) transmitted from one of the transmitters and receivers 72 from the ground 300 is once reflected by the left foot F or the like. Whether or not the process of changing to the reflection from the ground 300 and then returning to the reflection from the ground 300 was performed within a few seconds (within a predetermined time) was determined by the other transmitter / receiver 74 in the state of the ultrasonic wave 77 (reflected wave) (return time). ) Is monitored.

If the authentication in step b is successful, the front door 16 and the sliding door 20 are changed from the locked state to the unlocked state, and the sliding door 20 is automatically opened.

The user M whose hands are blocked by the luggage B can lower the luggage B into the vehicle 22 and load it on the vehicle 12 (step c).

After the luggage B is unloaded into the vehicle 22, the user M who determines that the loading / unloading of the luggage B is completed performs the above-mentioned kick motion (either the right foot or the left foot F) (step b again).

The slide door 20 is automatically closed with the detection of this kick motion as a trigger. After that, when the portable device 200 (portable device ECU 224) and the authentication ECU 24 perform authentication communication and the authentication is successful, the slide door 20 is locked. At this time, all the other doors including the front door 16 are also locked.

In this case, since the detection unit 50 (ultrasonic sensor 76) is provided under the front door 16 (under the front side sill 17), the user M's foot (left foot F or right foot) during the loading / unloading work of the luggage B. Is outside the detection range R of the ultrasonic sensor 76 even if the door 20 enters under the rear side sill 18 (under the rear left opening 104), so that the slide door 20 is held open. Therefore, it is possible to suppress the possibility that the slide door 20 is closed unexpectedly during the loading and unloading of the luggage B, and to carry out the smooth loading and unloading work of the luggage B.

Returning to FIG. 1, the vehicle ECU 32 has a power mode changeover switch 44 capable of switching the power mode under the certification of the engine 40 as the power source of the vehicle 12 and the portable device 200 existing within the predetermined range of the vehicle interior 22. And are connected. The power mode changeover switch 44 generally corresponds to a conventional ignition switch. As the power source of the vehicle 12, a fuel cell may be used instead of the engine 40.

FIG. 4 is an explanatory diagram of a circuit configuration of a power mode changeover switch 44 (power mode changeover button) arranged on an instrument panel (not shown). The actual circuit is composed of a relay in which the switching position of the movable contact can be arbitrarily selected, but for convenience of understanding, the circuit configuration of the rotary switch having the function of a conventional ignition switch will be described.

The power mode changeover switch 44 is a push button switch, and each time the button is pressed, the power mode changeover switch 44 is an off mode (also referred to as an OFF mode when all power supplies are off) → an accessory mode (a mode in which in-vehicle electrical components such as an audio system can be used, and ACC (Also referred to as mode) → ON mode (also referred to as ON mode) in which the engine 40 is in operation via the start mode (START mode) in which the engine 40 starts (START) → The above-mentioned off mode is circulated and selectively performed. The function mode can be selected (switched).

The power mode changeover switch 44 includes a common terminal 130, one movable contact 132, fixed contacts OFF, ACC, ON, and START, and sections 133, 134, 135, and 136. The ACC terminal 143 is connected to the intercept 133, the ON terminal 144 is connected to the intercept 134, and the RES (Remote Engine Start: related to the so-called remote control engine starter) ON terminal 145 is connected to the intercept 135. , The START terminal 146 is connected to the intercept 136.

When the movable contact 132 is in the fixed contact OFF, the voltage of the on-board capacitor 140 (also referred to as + B power supply) is not connected to the electrical components or the like.

When the movable contact 132 is in the fixed contact ACC, power + B is supplied from the common terminal 130 to the ACC terminal 143 via the movable contact 132 and the intercept 133. In addition to the in-vehicle electrical components (not shown), the terminal 71b in the connector 71 of the detection unit 50 is connected to the ACC terminal 143 via wiring. The voltage signal that appears at the ACC terminal 143 is called the ACC signal Sacc. The ACC signal Sacc becomes the voltage of the + B power supply (voltage is also referred to as + B) with a nominal value of +12 [V] when the ACC terminal 143 is connected to the capacitor 140 through the intercept 133, the movable contact 132, and the common terminal 130 (the voltage is also called + B). (High level), when the intercept 133 is not connected to the movable contact 132, it is grounded via a capacitor (not shown) and the voltage becomes 0 [V] (low level).

When the movable contact 132 is in the fixed contact ON, + B power is supplied to the ON terminal 144 via the intercept 134, + B power is supplied to the ACC terminal 143 via the intercept 133, and further, + B power is supplied to the ACC terminal 143 via the intercept 135. + B power is also supplied to the RESON terminal 145. When the sections 134 and 135 are not connected to the movable contact 132, they are grounded through the ON terminal 144 and the RESON terminal 145 via a resistor (not shown), and the voltage becomes 0 [V].

When the movable contact 132 is in the fixed contact START, + B power is supplied to the RESON terminal 145 via the intercept 135, and + B power is supplied to the START terminal 146 via the intercept 136. When the intercept 136 is not connected to the movable contact 132, the intercept 136 is grounded through a resistor (not shown) through the START terminal 146, and the voltage becomes 0 [V].

Here, there are three points to be noted below.

First, when the power mode changeover switch 44 is pressed in the vehicle interior 22 and the authentication communication with the portable device 200 in the vehicle interior 22 is successful and the movable contact 132 is connected to the fixed contact START, the engine 40 is cranked (not shown). After being cranked by the motor and started, the movable contact 132 is returned to the fixed contact ON by the vehicle ECU 32. During the operation after the engine 40 is started, the supply of electric power to the cranking motor is stopped.

Secondly, when the engine start button of the remote control engine starter (not shown) is pressed from the outside of the vehicle 12, when the authentication with the remote control engine starter is successful, the movable contact 132 is a fixed contact from the position where the fixed contact is OFF. It is controlled by the vehicle ECU 32 so as to bypass the ACC and the fixed contact ON and are directly connected to the fixed contact START, and after the engine 40 is cranked and started, the movable contact 132 is maintained at the fixed contact START. During the operation after the engine 40 is started, the supply of electric power to the cranking motor is stopped.

Thirdly, when the engine 40 is started from the outside by the remote controller engine starter to be in an operating state, for example, the unlock button 204 of the portable device 200 is operated from the outside, and the authentication communication is successful and the lock 122. When 222 is unlocked, the vehicle ECU 32 connects the movable contact 132 from the fixed contact START to the fixed contact OFF, and stops the engine 40.

Returning to FIG. 1, the door lock ECU 34 is in a state of a front door lock actuator 52 that locks and unlocks the front door 16 (front door lock, FD lock) 122, a door lock / unlock button 126, and a front door lock 122 (the state of the front door lock 122. The front door lock switch 54 that detects the locked or unlocked state, the front door switch 56 that detects the open / closed state of the front door (FD) 16, and the slide door that locks and unlocks the lock (SD lock) 222 of the slide door 20. The lock actuator 60 is connected.

When the door lock / unlock button 126 (see FIGS. 2A and 2B) incorporated in the door handle 124 is pressed, the door lock / unlock button 126 outputs a door lock trigger signal St. The door lock trigger signal St functions as an unlock signal for the front door 16 and the slide door 20 when the front door 16 and the slide door 20 are locked, and the front door 16 and the slide door 20 are closed. When in the unlocked state, it functions as a lock signal for the front door 16 and the sliding door 20.

The sliding door drive ECU 36 is closed when the outer door handle 154 (see FIGS. 2A and 2B) is pulled by the user M, and outputs (pulled) the outer door handle switch-on signal So / hon. When not in the open state, the outer door handle switch on signal So / hon is not output.) A slide that detects the lock (SD lock) 222 state (locked or unlocked state) of the outer door handle switch 58 and the slide door 20. A door lock switch 62, a slide door switch 64 for detecting the open / closed state of the slide door 20, and a slide door opening / closing actuator 66 for opening / closing the slide door (SD) 20 are connected.

The detection ECU 70 includes a timer 26 as a timetable, an ultrasonic sensor 76 including the above-mentioned transmitter / receiver 72 and the transmitter / receiver 74, a buzzer 78, and a connector 71 as an electrical component that electrically connects the wirings to each other. It is connected. The connector 71 includes nine terminals 71a to 71i.

The terminal 71a is a terminal to which + B power is supplied from the capacitor 140 of the vehicle 12 into the detection unit 50.

The terminal 71b is connected to the ACC terminal 143 (see FIG. 4), and the detection ECU 70 detects the voltage (+ B power supply or 0 [V]) of the ACC terminal 143 based on the voltage level of the ACC signal Sacc, and uses the detected voltage. Based on this, it is a terminal for transitioning the detection unit 50 to the kick detection mode state (kick detection enable state) or the kick detection prohibition mode state.

The terminal 71c is connected to the front door switch 56, and is a terminal for the detection ECU 70 to detect the open / closed state of the front door 16.

The terminal 71d is connected to the front door lock switch 54, and the detection ECU 70 is a terminal for detecting the locked / unlocked state of the front door 16.

The terminal 71e is a terminal connected to the door lock / unlock button 126 and outputs a pseudo door lock trigger signal Spt, which is a signal equivalent to the above-mentioned door lock trigger signal St, from the detection ECU 70, and is a terminal for outputting the pseudo door lock in the detection ECU 70. It is connected to the generation unit 160 of the trigger signal Spt.

The terminal 71f is connected to the slide door switch 64, and is a terminal for the detection ECU 70 to detect the open / closed state of the slide door 20.

The terminal 71g is connected to the slide door lock switch 62, and is a terminal for the detection ECU 70 to detect the lock / unlock state of the lock 222 of the slide door 20.

The terminals 71h and 71i are connected to the outer door handle switch (ODH switch) 158 of the electronic switch by the semiconductor element in the detection ECU 70, which has the same function as the outer door handle switch 58 described above. The outer door handle switch 158 is turned on by the detection ECU 70 under predetermined conditions described later, and generates and outputs a pseudo outer door handle switch on signal (pseudo ODH switch on signal) Spo / hon. Pseudo outer door handle switch on signal Spo Functions as a / hon generator.

This pseudo outer door handle switch on signal Spo / hon is transmitted from the outer door handle switch 58 (see FIG. 1) when the outer door handle 154 (see FIGS. 2A and 2B) is being pulled by the user M. It is a pseudo signal equivalent to the output outer door handle switch-on signal So / hon.

[motion]
Next, regarding the detailed operation of the vehicle door opening / closing device 10 basically configured and operating as described above, the sliding door 20 in which the detection unit 50 shown in FIG. 5 and the vehicle door opening / closing device main body 302 are linked is linked. Flow chart related to the operation (opening / closing operation and lock / unlock operation), and an explanatory diagram of the operation of the slide door 20 (SD) shown in FIG. 6 from the time of locking (LOCK) to the time of unlocking (UNLOCK) and opening (OPEN). , An explanatory view of the operation of the slide door 20 shown in FIG. 7 from when the door is opened (OPEN) to when the door is closed (CLOSE) and from when the door is opened (OPEN) to when the door is closed (CLOSE) and locked (& LOCK). The operation and non-operation of the detection unit 50 shown in No. 8 will be described in the following order of (1)-(4) with reference to the flowchart for determining the operation and non-operation.
(1) Transition processing from sliding door closed lock to open unlock (2) Transition processing from sliding door closed unlock to closed lock (3) Transition processing from sliding door open unlock to closed lock (4) Detection unit 50 operation / non-operation determination process

[Operation of the sliding door 20 in which the detection unit 50 and the vehicle door opening / closing device main body 302 are linked]
<(1) Transition processing from sliding door closed lock to open unlock>
In step S1, the detection ECU 70 determines whether or not there is kick detection (kick motion detection).

As shown in FIG. 6, in this kick detection, a person X who wants to open the slide door 20 (SD) holds the i) portable device 200 within the portable device detection range 80 of the slide door 20 (L side SD). When a foot (right foot or left foot F) is put under the ultrasonic sensor 76 under the front side sill 17, ii) the detection unit 50 sounds the buzzer 78, and iii) the person X is detected by pulling out the foot within a few seconds. (Step S1: YES). It should be noted that in this embodiment, the portable device detection range 80 of the slide door 20 is provided in the vicinity of the front surface of the front door 16.

Next, in step S2, the detection ECU 70 acquires the detection result of the open / closed state of the slide door switch 64 through the terminal 71f, and determines the open / closed state of the slide door 20.

Here, it is assumed that it is in the “closed state” (step S2: closed).

Next, in step S3, the detection ECU 70 acquires and detects the locked state of the slide door 20 and the detection result of the locked / unlocked state of the slide door lock switch 62 through the terminal 71g.

Here, it is assumed that it is in the “locked state” (step S3: locked).

At this time, in step S4, the detection ECU 70 turns the outer door handle switch 158 into an ON state. As a result, iv) pseudo outer door handle switch-on signal Spo / hon is output from the terminals 71h and 71i of the detection ECU 70 connected to the outer door handle switch 158 of the detection unit 50 and input to the slide door drive ECU 36.

Next, in step S5, an authentication request from the slide door drive ECU 36 triggered by the input of the pseudo outer door handle switch-on signal Spo / hon is made via the in-vehicle communication line 30 (hereinafter, the description of the in-vehicle communication line 30 is omitted). The authentication ECU 24, which is sent to the authentication ECU 24 and receives the pseudo outer door handle switch-on signal Spo / hon, performs authentication communication with the portable device 200. In this case, if the IDs stored in the mutual storage devices 25 and 225 match, the authentication is successful, and the successful authentication result is notified from the authentication ECU 24 to the slide door drive ECU 36.

At this time, in step S6, the slide door drive ECU 36 unlocks the lock 222 by the slide door lock actuator 60 via the door lock ECU 34, and then opens the slide door 20 through the slide door opening / closing actuator 66. Driven to state (right side of FIG. 6).

The above processing {step S1: YES → step S2: closed → step S3: lock → step S4: Spo / hon signal output → step S5: authentication communication → step S6: open} is performed under the kick operation of the user X. This is a process (referred to as a first route process) in which the slide door 20 that is locked in the closed state is opened in the unlocked state.

<(2) Transition processing from closing / unlocking the sliding door to closing / locking>
On the other hand, if the detection ECU 70 determines in step S3 described above that the currently closed slide door 20 is in the "unlocked state", the first kick detection in step S1 is performed. Do not open immediately.

Therefore, in step S7, the detection ECU 70 outputs the pseudo door lock trigger signal Spt from the generation unit 160 through the terminal 71e and sends it to the door lock ECU 34.

Next, in step S8, an authentication request from the door lock ECU 34 is sent to the authentication ECU 24 using the input of the pseudo door lock trigger signal Spt as a trigger. At this time, the authentication ECU 24 performs authentication communication with the portable device 200. When the IDs stored in the mutual storage devices 25 and 225 match, the authentication is successful, and the successful authentication result is notified from the authentication ECU 24 to the door lock ECU 34.

Next, in step S9, the door lock ECU 34 locks the lock 222 through the slide door lock actuator 60 based on the successful authentication result.

The above processing {step S1: YES → step S2: closed → step S3: unlock → step S7: Spt signal output → step S8: authentication communication → step S9: lock} is closed under the kick operation of the user X. This is a process of locking the unlocked slide door 20 (referred to as a second route process).

When the kick operation (second kick operation) is detected again in step S1 after the process of step S9, the slide door 20 shifts from the closed lock state to the unlock open state by the above-mentioned first route process. To do.

<(3) Transition processing from unlocking the sliding door to closing lock>
In step S1, the detection ECU 70 determines whether or not there is kick detection (kick motion detection).

As shown in FIG. 7, the kick detection determination is made by a person who wants to close the slide door 20 (SD) within the portable device detection range 80 of the slide door 20 (L side SD) (a person who wants to CLOSE the SD) Y. Alternatively, the person who wants to close and lock the slide door 20 (the person who wants to CLOSE & LOCK the SD) Z, I) holds the portable device 200 and puts his foot (right foot or left foot F) under the ultrasonic sensor 76 under the front side sill 17 and pulls it out. If so (when a kick motion is performed), it is achieved (step S1: YES). At this time, the detection unit 50 sounds the buzzer 78.

Next, when it is determined in step S2 that the open / closed state of the slide door switch 64 is in the open state (lock 222 is naturally unlocked) as a result of detecting the open / closed state of the slide door switch 64, in step S10. , The detection ECU 70 acquires and detects the open / closed state of the front door 16 (the detection result of the open / closed state of the front door switch 56) through the terminal 71c.

Here, it is assumed that it is in the “closed state” (step S10: closed).

At this time, in step S11, the detection ECU 70 turns the outer door handle switch 158 into an ON state. As a result, I) the pseudo outer door handle switch on signal Spo / hon is output from the outer door handle switch 158 and input to the slide door drive ECU 36.

Next, in step S12, the slide door drive ECU 36 drives the slide door 20 in the closed state through the slide door opening / closing actuator 66.

The person Y who wants to close the slide door 20 (SD) (the person who wants to CLOSE the SD) II) holds the portable device 200 and moves away from the portable device detection range 80 before the closed state of the slide door 20 is completed.

On the other hand, the person Z who wants to close and lock the slide door 20 holds the portable device 200 and waits until the slide door 20 is closed (CLOSE completed) within the portable device detection range 80.

When the detection ECU 70 detects that the slide door 20 is in the closed state by the state of the slide door switch 64, the detection ECU 70 performs the same process as in steps S7, S8, and S9 described above in step S13. A pseudo door lock trigger signal Spt is output from the generation unit 160 and sent to the door lock ECU 34.

Next, in step S14, an authentication request for the door lock ECU 34 is sent to the authentication ECU 24, and the authentication ECU 24 performs authentication communication with the portable device 200. When the IDs stored in the mutual storage devices 25 and 225 match, the authentication is successful, and the successful authentication result is notified from the authentication ECU 24 to the door lock ECU 34.

At this time, in step S15, the door lock ECU 34 locks the lock 222 through the sliding door lock actuator 60.

The above processing {step S1: YES → step S2: open → step S10: closed → step S11: Spo / hon signal output → step S12: slide door closed → step S13: Spt signal output → step S14: authentication communication → step S15 : Lock} is a process (referred to as a third route process) of locking the open and unlocked slide door 20 under the kick operation of the user Z.

Even if the detection unit 50 is a retrofit option, in any of the first to third route processing, under the existing authentication communication (steps S5, S8, S14) between the portable device 200 and the authentication ECU 24. Since the sliding door 20 is opened / closed or locked / unlocked, security is maintained.

When it is determined in step S10 that the open / closed state of the front door 16 (detection result of the open / closed state of the front door switch 56) is in the "open state", the slide is performed without further processing. The processing related to the opening / closing operation and the locking / unlocking operation of the door 20 is completed.

That is, when it is determined in step S10 that the open / closed state of the front door 16 (detection result of the open / closed state of the front door switch 56) is in the "open state", the detection ECU 70 presses the outer door handle switch 158. Do not turn it on (ON), but keep it off (OFF). As a result, the pseudo outer door handle switch on signal Spo / hon is not output from the outer door handle switch 158, and the pseudo outer door handle switch on signal Spo / hon is not input to the slide door drive ECU 36. Therefore, the sliding door 20 is maintained in the open state (the lock 222 is naturally unlocked) without being closed.

In the above process {step S1: YES → step S2: open → step S10: open → end}, when the detection unit 50 detects the kick operation of the user Z, the front door 16 is in the open state (naturally, unlocked). A process (referred to as a fourth route process) of maintaining an open state (lock 222 is naturally an unlocked state) without closing the open and unlocked slide door 20 when it is in the open state (also in a state). Is.

<(4) Operation / non-operation determination process of detection unit 50>
Next, in step S101 of FIG. 8, the detection ECU 70 detects the ACC signal Sacc through the terminal 71b, which is a detection terminal, and confirms the voltage. When Sacc = + B, it is determined that the movable contact 132 of the power mode changeover switch 44 is switched to the fixed contact ACC or the fixed contact ON in the vehicle 12, and it is considered that there is an occupant in the vehicle 12. , In step S103, the kick detection prohibition mode (kick motion is invalidated) is set.

On the other hand, when the ACC signal Sacc is 0 [V], the movable contact 132 is switched to the fixed contact OFF or the fixed contact START, so that it is considered that there is no occupant in the vehicle 12 and the step is taken. In S102, the kick detection mode (kick motion is enabled) is set.

[Summary]
As described above, the vehicle door opening / closing device 10 according to the above-described embodiment has the front left opening 102 and the rear left opening 104 formed on the side of the vehicle body 100, and the front door 16 that opens and closes the front left opening 102. The rear slide door 20 is opened and closed via the rear slide door 20 that opens and closes the rear left opening 104, the vehicle door opening / closing device main body 302 that automatically opens and closes the rear sliding door 20, and the vehicle door opening / closing device main body 302. Therefore, a detection unit 50 provided below the side of the vehicle body 100 is provided, and the detection unit 50 includes an ultrasonic sensor 76 for detecting the foot (left foot F or right foot) of the user M, and an ultrasonic sensor 76. It has a detection ECU 70 that determines the open / closed state of the rear slide door 20 by using the detection of a foot as a trigger, and the detection ECU 70 determines that the open / closed state of the rear slide door 20 is an open state. When the rear slide door 20 is in the open state, the rear slide door 20 is not driven toward the closed state and the rear slide door 20 is maintained in the open state. When the open / closed state of the rear slide door 20 is determined to be in the open state, the front door When 16 is in the closed state, the rear slide door 20 is driven toward the closed state, and when the open / closed state of the rear slide door 20 is determined to be in the closed state, the rear slide door 20 is in the locked state. If the rear slide door 20 is unlocked and driven toward the open state, and the rear slide door 20 is in the unlocked state when the open / closed state of the rear slide door 20 is determined to be the closed state, the rear slide door 20 is unlocked. It is characterized by locking the door.

According to this embodiment, when the sliding door 20 is in the open state, the user opens the front seat door and gets into the front seat in the car or loads the luggage in the front seat in the car, that is, the rear seat. When the door (sliding door 20) is open and the front door (front door 16) is open and the detection unit 50 detects the presence of the user M, the rear door (sliding door 20) Since the rear door (sliding door 20) is not closed, the rear door (sliding door 20) is closed even though the rear door (sliding door 20) is not closed. This can be avoided, the work with the rear door open can be performed without any trouble, and the user can be prevented from feeling uncomfortable.

Further, in the vehicle door opening / closing device 10 according to the above-described embodiment, the detection unit 50 (ultrasonic sensor 76) is provided under the front door 16 (under the front side sill 17).

Therefore, for example, during the loading / unloading work with the rear slide door 20 open, the rear slide door 20 closes unexpectedly due to the movement of the foot (left foot F or right foot) of the user M who is the operator. Can be prevented.

Even if the detection unit 50 is a so-called retrofit option, the rear door (sliding door 20) is operated under authentication communication in cooperation with the existing door drive unit (door lock ECU 34 and slide door drive ECU 36) and the portable device 200. It can be driven to the open state.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various configurations can be adopted based on the contents described in this specification.

10 ... Vehicle door opening / closing device 12 ... Vehicle 16 ... Front door 17 ... Front side sill 20 ... Sliding door 34 ... Door lock ECU
36 ... Sliding door drive ECU 50 ... Detection unit 70 ... Detection ECU 102 ... Front left opening (front opening)
104 ... Rear left opening (rear opening) 200 ... Portable device 302 ... Vehicle door opening / closing device main body (door drive mechanism)
F ... Left foot M, X, Y, Z ... User (person)

Claims (6)

Front opening and rear opening formed on the side of the car body,
A front door that opens and closes the front opening,
A rear slide door that opens and closes the rear opening,
A door drive mechanism that automatically opens and closes the rear slide door,
A detection unit provided at a lower position on the side of the vehicle body for opening and closing the rear slide door via the door drive mechanism.
With
The detection unit is
Sensors that detect human feet and
It has a control unit that determines the open / closed state of the rear slide door, triggered by the sensor detecting the foot.
The control unit
If the front door is in the open state when the open / closed state of the rear slide door is determined to be in the open state, the rear slide door is not driven toward the closed state and the rear slide door is maintained in the open state. And
If the front door is in the closed state when the open / closed state of the rear slide door is determined to be the open state, the rear slide door is driven toward the closed state.
If the rear slide door is in the locked state when the open / closed state of the rear slide door is determined to be the closed state, the rear slide door is unlocked and driven toward the open state.
A vehicle door opening / closing device for locking the rear sliding door when the rear sliding door is in the unlocked state when the open / closed state of the rear sliding door is determined to be the closed state. Front opening and rear opening formed on the side of the car body,
A front door that opens and closes the front opening,
A rear slide door that opens and closes the rear opening,
A door drive mechanism that automatically opens and closes the rear slide door,
A detection unit provided at a lower position on the side of the vehicle body for opening and closing the rear slide door via the door drive mechanism.
With
The detection unit is
Sensors that detect human feet and
It has a control unit that determines the locked / unlocked state of the rear slide door by using the sensor detecting the foot as a trigger.
Regardless of the open / closed state of the front door, the control unit locks the rear slide door when the rear slide door is unlocked, and locks the rear slide door when the rear slide door is locked. A vehicle door opening / closing device characterized by unlocking. In the vehicle door opening / closing device according to claim 2.
When the rear slide door is in the closed state and the locked state, the control unit closes the rear slide door when the sensor does not detect the foot within a predetermined threshold time from the time when the sensor detects the foot. A vehicle door opening / closing device characterized by unlocking and driving toward an open state. In the vehicle door opening / closing device according to claim 1 or 2.
When the control unit determines that the open / closed state of the rear slide door is in the open state, drives the rear slide door toward the closed state, and then determines that the rear slide door is in the closed state. A vehicle door opening / closing device characterized by locking the rear sliding door. In the vehicle door opening / closing device according to claim 1 or 2.
Before locking or unlocking the rear slide door, the control unit performs authentication communication with a portable device capable of locking and unlocking the vehicle from the outside of the vehicle, and based on a successful authentication result, the control unit performs authentication communication. A vehicle door opening / closing device for locking or unlocking the rear sliding door. In the vehicle door opening / closing device according to any one of claims 1 to 5.
The detection unit is
A vehicle door opening / closing device characterized by being arranged under the side sill of the front door.

Images