JP2021156004A - Vehicle door control device - Google Patents

Abstract

To provide a vehicle door control device that can prevent an object from falling through a door opening when a door is opened.SOLUTION: A door control device 100 is applied to a vehicle 10 including: a back door 30 that opens/closes a door opening 21 leading to a cargo compartment 22; a door actuator 40 that applies a braking force to the back door 30; and a pressure-sensitive sensor 80 that is installed on a surface of the back door 30 facing the cargo compartment 22. The door control device 100 includes: a determining unit 102 that determines whether or not luggage Lg in the cargo compartment 22 is in contact with the back door 30 based on detection results of the pressure-sensitive sensor 80; and a control unit 101 that controls the door actuator 40 based on determination results of the determining unit 102. The control unit 101 does not apply the braking force to the back door 30 when the luggage Lg is not in contact with the back door 30, while it applies the braking force to the back door 30 when the luggage Lg is in contact with the back door 30.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle door control device.

Patent Document 1 describes a vehicle including a back door for opening and closing a door opening provided at the rear of the vehicle, a door actuator for driving the back door, and a door control device for controlling the door actuator. The door control device causes the door actuator to open and close the back door, triggered by the user operating the open / close switch.

Japanese Unexamined Patent Publication No. 2009-299387

In a vehicle as described above, depending on the state of the luggage in the luggage compartment leading to the door opening, the luggage may fall from the door opening when the back door is opened. This situation is generally common not only when the back door is opened by the door actuator but also when the back door is opened by the user. An object of the present invention is to provide a vehicle door control device capable of suppressing an object from falling through a door opening when the door is opened.

Hereinafter, means for solving the above problems and their actions and effects will be described.
Vehicle door control devices that solve the above problems are installed on a door that opens and closes a door opening leading to the vehicle interior, a braking unit that applies braking force to the door, and a surface of the door that faces the vehicle interior. A determination unit that is applied to a vehicle equipped with a touch sensor and determines whether or not an object in the vehicle interior is in contact with the door based on the detection result of the touch sensor, and a determination result of the determination unit. A control unit that controls the braking unit based on the control unit is provided, and the control unit does not apply the braking force to the door when the object is not in contact with the door, while the object does not apply the braking force to the door. When it is in contact with the door, the braking force is applied to the door.

The door control device having the above configuration applies a braking force to the door when an object is in contact with the door. Therefore, when the user manually opens the door, the door is prevented from opening vigorously. Therefore, the door control device can prevent an object from falling through the door opening when the door is opened.

In the vehicle door control device, the touch sensor is a pressure-sensitive sensor capable of detecting contact pressure, and the control unit uses the object with respect to the door in a situation where the object is in contact with the door. When the contact pressure is large, it is preferable to increase the braking force applied to the door as compared with the case where the contact pressure of the object with respect to the door is small.

The door control device having the above configuration changes the magnitude of the braking force applied to the door according to the magnitude of the contact pressure. This makes it difficult for the user to open the door when a heavy object is leaning against the door, and makes it easier for the user to open the door when a light object is leaning against the door. Therefore, the door control device can prevent an object from falling from the door opening when the door is opened, and can improve the convenience of the user.

In the vehicle door control device, it is preferable that the control unit eliminates the braking force when the object does not come into contact with the door under the condition that the braking force is applied to the door.

According to the door control device having the above configuration, the user can quickly open the door after the object does not come into contact with the door.
The braking unit is a door actuator having a motor and a speed reducer, and a door actuator that opens and closes the door, and a clutch that cuts or connects a power transmission path between the door actuator and the door. When the user manually opens and closes the door, the control unit includes and disengages the clutch, stops driving the door actuator, and automatically opens and closes the door. , The door actuator is driven in a state where the clutch is connected, and when the user manually opens the door, if the object is in contact with the door, the clutch is connected. It is preferable to apply the braking force to the door.

In the above vehicle, the door actuator has a speed reducer, so that the door can be opened and closed even if the output torque of the motor is small. In other words, when the user opens and closes the door, it becomes difficult for the user to open and close the door when the clutch is engaged. That is, when the clutch is engaged, a braking force corresponding to the reduction ratio of the speed reducer is applied to the door. In the door control device having the above configuration, a braking unit that applies a braking force to the door is configured by a door actuator and a clutch, which are general configurations for opening and closing the door. Therefore, it is not necessary to separately provide a braking unit on the vehicle.

In the vehicle door control device, when the door is opened and operated by the door actuator, the control unit does not contact the door when the object is in contact with the door. It is preferable to slow down the operating speed of the door more than in the case.

The door control device having the above configuration slows down the operating speed when an object is in contact with the door when the door is opened and operated by the door actuator. Therefore, the user can easily deal with an object that is about to fall from the passenger compartment.

In the vehicle door control device, the touch sensor is a pressure-sensitive sensor capable of detecting contact pressure, and the control unit opens the door by the door actuator while the object is in contact with the door. When operating, when the contact pressure of the object with respect to the door is large, it is preferable to slow down the operating speed of the door as compared with the case where the contact pressure of the object with respect to the door is small.

According to the door control device having the above configuration, when the door is opened and operated by the door actuator, the larger the contact pressure, the slower the operating speed of the door. This makes it easier for the user to handle heavy objects that are about to fall out of the passenger compartment.

The door is preferably a back door.
The door control device having the above configuration can prevent an object from falling through the door opening when the back door is opened.

The vehicle door control device can prevent an object from falling through the door opening when the door is opened.

The schematic diagram which shows the schematic structure of the vehicle which comprises the door control device for a vehicle which concerns on one Embodiment. A flowchart illustrating a flow of processing executed by a door control device when a user manually opens a back door. A flowchart illustrating a flow of processing performed by a door control device when a door actuator automatically opens a back door.

Hereinafter, an embodiment of a vehicle including a vehicle door control device (hereinafter, also referred to as “door control device”) will be described.
As shown in FIG. 1, the vehicle 10 includes a vehicle body 20 having a door opening 21, a back door 30 for opening and closing the door opening 21, a door actuator 40 for driving the back door 30, and a back door 30 and a door actuator. A clutch 50 that disconnects or connects a power transmission path to and from 40 is provided. Further, the vehicle 10 includes a latch mechanism 60 that restrains the back door 30 to the vehicle body 20, a release actuator 70 that drives the latch mechanism 60, a pressure sensor 80 installed on the inner surface of the back door 30, and various types of sensors for the user. It includes a notification unit 90 that notifies information, and a door control device 100 that controls components related to the back door 30.

The vehicle body 20 has a luggage compartment 22 as an example of a "vehicle compartment" leading to the door opening 21. The door opening 21 opens to the rear portion of the vehicle body 20. The door opening 21 is a portion where the user puts in and out the luggage Lg as an example of the "object" in and out of the luggage compartment 22. Further, the vehicle body 20 has a striker 23 at the lower end of the door opening 21.

The back door 30 has a shape corresponding to the door opening 21. The back door 30 is rotatably supported above the door opening 21. The back door 30 is displaced between the "fully closed position" in which the door opening 21 is fully closed and the "fully open position" in which the door opening 21 is fully opened by rotating around the axis extending in the width direction of the vehicle 10. do.

The back door 30 has a door handle 31 operated by the user and an unlock switch 32 installed on the door handle 31. The door handle 31 is a handle for the user to manually open the back door 30. Therefore, it is preferable that the door handle 31 is provided at a position that is easy for the user standing behind the vehicle 10 to operate. The unlock switch 32 is a switch that is operated when the user manually opens the back door 30. The unlock switch 32 outputs an unlock command signal to the door control device 100 when operated by the user. A gas spring may be provided between the vehicle body 20 and the back door 30 to urge the back door 30 in the opening direction. According to this, the force required when the user manually opens the back door 30 is reduced.

The door actuator 40 includes a motor 41 and a transmission mechanism 42 that transmits the power of the motor 41 to the back door 30. The motor 41 outputs a pulse signal according to the amount of rotation to the door control device 100. The transmission mechanism 42 is configured by using, for example, a feed screw mechanism and a link mechanism. The transmission mechanism 42 corresponds to an example of a “reducer” in that a torque that increases the output torque of the motor 41 is transmitted to the back door 30. That is, when the door actuator 40 is stopped, a braking force corresponding to the reduction ratio of the transmission mechanism 42 acts on the back door 30.

The clutch 50 is, for example, an electromagnetic clutch. The clutch 50 adjusts the frictional force generated between the plates constituting the clutch 50 by controlling the magnitude of the voltage applied to the coil and PWM controlling the voltage applied to the coil. In other words, the clutch 50 adjusts the magnitude of torque transmitted between the back door 30 and the door actuator 40.

The latch mechanism 60 switches between a full latch state that engages with the striker 23 and an unlatch state that does not engage with the striker 23. In the full latch state in which the latch mechanism 60 engages with the striker 23, the back door 30 is restrained in the fully closed position, and in the unlatch state in which the latch mechanism 60 does not engage with the striker 23, the back door 30 is not restrained in the fully closed position.

The release actuator 70 switches the latch mechanism 60 from the full latch state to the unlatch state. In the following description, switching the state of the latch mechanism 60 by the release actuator 70 is also referred to as “unlatch operation”.

The pressure-sensitive sensor 80 is a sensor for detecting the contact of the luggage Lg in the luggage compartment 22 with the door. The pressure sensor 80 has a sheet shape and covers the inner surface of the back door 30. That is, the pressure sensor 80 is installed on the back door 30 facing the luggage compartment 22. When the pressure sensor 80 is made of a material capable of transmitting light, the pressure sensor 80 may cover the window portion of the back door 30. The pressure sensor 80 outputs a signal corresponding to the detection result, specifically, a signal indicating the magnitude of the contact pressure P to the door control device 100.

The notification unit 90 may be a speaker that outputs sound, a light that lights up or blinks, or a display that can display an image. The notification unit 90 is preferably installed near the door opening 21 or at the back door 30.

The door control device 100 includes a signal according to the operation content of the unlock switch 32, a signal according to the operation content of the portable device 110 such as a remote control key, a signal regarding the position of the back door 30 from the door actuator 40, and a pressure sensor 80. A signal regarding the detection result of is input. Then, the door control device 100 controls the door actuator 40, the clutch 50, and the release actuator 70 based on various input signals.

The door control device 100 sets the door actuator 40, the clutch 50, and the release based on the unlock command signal input from the unlock switch 32 and the open operation command signal or the close operation command signal input from the portable device 110. It has a control unit 101 that controls the actuator 70.

When the back door 30 is arranged in the fully closed position and the unlock command signal is input from the unlock switch 32, the control unit 101 unlatches the latch mechanism 60 by the release actuator 70. However, the control unit 101 does not open the back door 30 by the door actuator 40 after the latch mechanism 60 is unlatched. That is, when the user operates the unlock switch 32 of the back door 30, the user manually opens the back door 30. When the clutch 50 is connected when the user opens and closes the back door 30, a braking force corresponding to the reduction ratio of the transmission mechanism 42 is applied to the back door 30. That is, it becomes difficult for the user to open and close the back door 30. Therefore, when the user opens and closes the back door 30, the door control device 100 disengages the clutch 50 in principle.

When the back door 30 is arranged in the fully closed position, the control unit 101 unlatches the latch mechanism 60 by the release actuator 70 when an open operation command signal is input from the portable device 110 or the like. Subsequently, the control unit 101 automatically opens the back door 30 to the fully open position by the door actuator 40. On the other hand, when the back door 30 is arranged in the fully open position and the closing operation command signal is input, the control unit 101 closes the back door 30 to the fully closed position by the door actuator 40. When the back door 30 is opened and closed by the door actuator 40, it is necessary to transmit the power of the door actuator 40 to the back door 30, so that the control unit 101 connects the clutch 50. The open operation command signal and the close operation command signal may be output to the control unit 101, for example, when the open / close switch provided around the driver's seat is operated.

Next, a main part of the present embodiment will be described.
In the vehicle 10, if a large amount of luggage Lg is loaded in the luggage compartment 22, or if vibration caused by the traveling of the vehicle 10 acts on the luggage Lg in the luggage compartment 22, the luggage Lg may lean on the back door 30. In this case, when the back door 30 is opened, the luggage Lg may fall from the luggage compartment 22 through the door opening 21. In such a situation, even when the back door 30 is opened by the user manually opening the back door 30, the back door 30 is opened by automatically opening the back door 30 by the door actuator 40. Also common.

Therefore, the door control device 100 of the present embodiment has a determination unit 102 that determines whether or not the luggage Lg of the luggage compartment 22 is in contact with the back door 30 based on the detection result of the pressure sensor 80. Then, based on the detection result of the determination unit 102, the control unit 101 performs a process for preventing the luggage Lg from falling when the luggage Lg is in contact with the back door 30.

First, a case where the user opens the back door 30 will be described.
When the user starts the opening operation of the back door 30, in other words, when the user operates the unlock switch 32, the determination unit 102 contacts the back door 30 with the luggage Lg based on the detection result of the pressure sensor 80. Judge whether or not it is done. Specifically, the determination unit 102 calculates the contact pressure P of the luggage Lg with respect to the back door 30, and determines whether or not the contact pressure P is equal to or greater than the pressure determination value Pth. The pressure determination value Pth is a determination value for determining the contact of the luggage Lg. When the contact pressure P is equal to or greater than the pressure determination value Pth, it indicates that the luggage Lg is in contact with the back door 30, and when the contact pressure P is less than the pressure determination value Pth, the luggage Lg is not in contact with the back door 30. Show that.

Subsequently, when the determination unit 102 determines that the luggage Lg is in contact with the back door 30, the control unit 101 causes the back door 30 to apply a braking force in order to suppress the user from opening the back door 30. .. Specifically, the control unit 101 causes the back door 30 to apply a braking force according to the reduction ratio of the transmission mechanism 42 by connecting the clutch 50 in a state where the drive of the door actuator 40 is stopped. As a result, when the luggage Lg is in contact with the back door 30, it becomes difficult for the user to open the back door 30, and the luggage Lg does not easily fall from the luggage compartment 22. In this respect, in the present embodiment, an example of the "braking unit" is configured including the door actuator 40 and the clutch 50.

When the contact pressure P of the luggage Lg with respect to the back door 30 is large, the posture of the luggage Lg in contact with the back door 30 is more unstable than when the contact pressure P of the luggage Lg with respect to the back door 30 is small, or the back door. There is a high possibility that the luggage Lg that comes into contact with 30 is a heavy luggage. That is, when the contact pressure P of the luggage Lg with respect to the back door 30 is large, there is a high possibility that the luggage Lg will fall when the user opens the back door 30, or the luggage Lg will fall to the user or the like. The impact will be greater.

Therefore, when the contact pressure P of the luggage Lg with respect to the back door 30 is large, the control unit 101 increases the braking force applied to the back door 30 as compared with the case where the contact pressure P of the luggage Lg with respect to the back door 30 is small. .. For example, the control unit 101 may prepare in advance a relational expression or a map showing the relationship between the braking force and the contact pressure P, and determine the magnitude of the braking force based on the relational expression or the map prepared in advance. The control unit 101 may adjust the magnitude of the braking force applied to the back door 30 by adjusting the voltage applied to the coil of the clutch 50.

While the user is opening the back door 30, the luggage Lg that comes into contact with the back door 30 may not come into contact with the back door 30 because the luggage Lg that comes into contact with the back door 30 is removed. Therefore, when the luggage Lg does not come into contact with the back door 30, the control unit 101 disengages the clutch 50 to eliminate the braking force applied to the back door 30. In this case, it is preferable that the control unit 101 gradually reduces the braking force applied to the back door 30 so as not to give a sense of discomfort to the user who opens the back door 30.

Further, if the user can safely open and operate the back door 30 even in a situation where the luggage Lg comes into contact with the back door 30, if a braking force is applied to the back door 30, the convenience of the user is reduced. There is a risk of doing so. Therefore, the control unit 101 eliminates the braking force applied to the back door 30 when the user operates the unlock switch 32 again under the condition that the braking force is applied to the back door 30. In this case, it is preferable that the control unit 101 gradually reduces the braking force applied to the back door 30.

As described above, not applying the braking force to the back door 30 means disengaging the clutch 50, and applying the braking force to the back door 30 means that the door actuator 40 is stopped. Means that the clutch 50 is connected with.

Subsequently, a case where the back door 30 is opened by the door actuator 40 will be described.
When the door actuator 40 starts the opening operation of the back door 30, in other words, when the opening operation command signal is input to the control unit 101, the determination unit 102 determines that the luggage Lg is based on the detection result of the pressure sensor 80. It is determined whether or not the back door 30 is in contact with the back door 30. Specifically, the determination unit 102 calculates the contact pressure P of the luggage Lg with respect to the back door 30, and determines whether or not the contact pressure P is equal to or greater than the pressure determination value Pth.

Subsequently, when the determination unit 102 determines that the luggage Lg is not in contact with the back door 30, the control unit 101 sets the operating speed VB of the back door 30 to the reference speed VBs, which is the normal speed, and sets the determination unit 102. When it is determined that the luggage Lg is in contact with the back door 30, the operating speed VB of the back door 30 is set to be less than the reference speed VBs. As a result, when the luggage Lg is in contact with the back door 30, the operating speed VB of the back door 30 becomes low.

When the contact pressure P of the luggage Lg with respect to the back door 30 is large, the posture of the luggage Lg in contact with the back door 30 is more unstable than when the contact pressure P of the luggage Lg with respect to the back door 30 is small, or the back door. There is a high possibility that the luggage Lg that comes into contact with 30 is a heavy luggage. That is, when the contact pressure P of the luggage Lg with respect to the back door 30 is large, there is a high possibility that the luggage Lg will fall when the door actuator 40 opens the back door 30, or the luggage Lg is attached to the vehicle 10 or the like. The effect of the fall of is increased.

Therefore, when the contact pressure P of the luggage Lg with respect to the back door 30 is large, the control unit 101 slows down the operating speed VB of the back door 30 as compared with the case where the contact pressure P of the luggage Lg with respect to the back door 30 is small. For example, the control unit 101 may prepare in advance a relational expression or a map showing the relationship between the operating speed VB and the contact pressure P, and determine the operating speed VB based on the relational expression or the map prepared in advance.

While the back door 30 is being opened, the luggage Lg that comes into contact with the back door 30 may not come into contact with the back door 30 due to reasons such as the user removing the luggage Lg that comes into contact with the back door 30. Therefore, when the luggage Lg does not come into contact with the back door 30, the control unit 101 increases the operating speed VB of the back door 30 to the reference speed VBs. In this case, it is preferable that the control unit 101 gradually increases the operating speed VB of the back door 30 so as not to give a sense of discomfort to the user.

Next, the flow of processing executed by the door control device 100 when the user opens the back door 30 will be described with reference to the flowchart shown in FIG. This process is performed every predetermined control cycle when the back door 30 is arranged in the fully closed position.

As shown in FIG. 2, the door control device 100 determines whether or not the unlock switch 32 has been operated (S11). When the unlock switch 32 is not operated (S11: NO), the door control device 100 ends this process. On the other hand, when the unlock switch 32 is operated (S11: YES), the door control device 100 unlatches the latch mechanism 60 by the release actuator 70 (S12). As a result, the restraint on the vehicle body 20 of the back door 30 in the fully closed position is released.

Subsequently, the door control device 100 determines whether or not the contact pressure P calculated from the detection result of the pressure sensor 80 is equal to or higher than the pressure determination value Pth (S13). When the contact pressure P is less than the pressure determination value Pth (S13: NO), that is, when the luggage Lg is not in contact with the back door 30, the door control device 100 disengages the clutch 50 (S14). After that, the door control device 100 shifts the process to step S18, which will be described later.

On the other hand, when the contact pressure P is equal to or higher than the pressure determination value Pth (S13: YES), that is, when the luggage Lg is in contact with the back door 30, the door control device 100 has a target braking force BPT corresponding to the contact pressure P. Is calculated (S15). After that, the door control device 100 connects the clutch 50 so that the braking force applied to the back door 30 becomes the target braking force BPT (S16). Subsequently, the door control device 100 causes the notification unit 90 to output a warning indicating that the luggage Lg is in contact with the back door 30 (S17).

In step S18, the door control device 100 determines whether or not the unlock switch 32 has been operated (S18). When the unlock switch 32 is operated (S18: YES), in other words, when the user determines that the braking force applied to the door is unnecessary, the door control device 100 disengages the clutch 50 (S19). After that, the door control device 100 ends this process. On the other hand, when the unlock switch 32 is not operated (S18: NO), the door control device 100 shifts the process to the previous step S13.

Next, the flow of processing executed by the door control device 100 when the back door 30 is opened and operated by the door actuator 40 will be described with reference to the flowchart shown in FIG. This process is performed every predetermined control cycle when the back door 30 is arranged in the fully closed position.

As shown in FIG. 3, the door control device 100 determines whether or not an open operation command signal has been input (S21). When the open operation command signal is not input (S21: NO), the door control device 100 ends this process. On the other hand, when the open operation command signal is input (S21: YES), the door control device 100 unlatch-operates the latch mechanism 60 by the release actuator 70 (S22). As a result, the restraint on the vehicle body 20 of the back door 30 is released.

Subsequently, the door control device 100 determines whether or not the contact pressure P calculated from the detection result of the pressure sensor 80 is equal to or higher than the pressure determination value Pth (S23). When the contact pressure P is less than the pressure determination value Pth (S23: NO), that is, when the luggage Lg is not in contact with the back door 30, the door control device 100 sets the operating speed VB of the back door 30 to the reference speed VBs. After setting, the back door 30 is opened and operated by the door actuator 40 (S24).

After that, the door control device 100 determines whether or not the back door 30 has reached the fully open position (S25). When the back door 30 reaches the fully open position (S25: YES), the door control device 100 stops the opening operation of the back door 30 (S26). After that, the door control device 100 ends this process. On the other hand, when the back door 30 has not reached the fully opened position (S25: NO), the door control device 100 shifts the process to the previous step S23. Whether or not the back door 30 has reached the fully open position may be determined based on the integrated value of the rotation amount of the motor 41 after the opening operation of the back door 30 is started.

In the previous step S23, when the contact pressure P is equal to or higher than the pressure determination value Pth (S23: YES), that is, when the luggage Lg is in contact with the back door 30, the door control device 100 responds to the contact pressure P. The target speed VBt is calculated (S27). After that, the door control device 100 sets the operating speed VB of the back door 30 to the target speed VBt, and opens and operates the back door 30 by the door actuator 40 (S28). After that, the door control device 100 shifts the process to step S25.

The operation of this embodiment will be described.
When the user opens the back door 30 in a situation where the luggage Lg of the luggage compartment 22 is in contact with the back door 30, a braking force is applied to the back door 30. Therefore, the user cannot open the back door 30 vigorously, and the luggage Lg is suppressed from falling.

Similarly, when the back door 30 is opened by the door actuator 40 in a situation where the luggage Lg of the luggage compartment 22 is in contact with the back door 30, the operating speed VB of the back door 30 is higher than the normal reference speed VBs. Is also slow. Therefore, the user can easily handle the luggage Lg that is about to fall.

The effect of this embodiment will be described.
(1) When the luggage Lg is in contact with the back door 30, the door control device 100 causes the back door 30 to apply a braking force. Therefore, when the user manually opens the back door 30, it is possible to prevent the back door 30 from being vigorously opened or being pushed by the luggage Lg to open. Therefore, the door control device 100 can prevent the luggage Lg from falling through the door opening 21 when the back door 30 is opened.

(2) The door control device 100 changes the magnitude of the braking force applied to the back door 30 according to the magnitude of the contact pressure P. Therefore, when the heavy luggage Lg is leaning on the back door 30, it is difficult for the user to open the back door 30, and when the light luggage Lg is leaning on the back door 30, the user is leaning on the back door 30. It becomes easier to open. Therefore, the door control device 100 can prevent the luggage Lg from falling from the door opening 21 when the back door 30 is opened, and can improve the convenience of the user.

(3) The door control device 100 eliminates the braking force applied to the back door 30 after the luggage Lg does not come into contact with the back door 30. Therefore, the user can quickly open the back door 30 after the luggage Lg does not come into contact with the back door 30.

(4) The door control device 100 includes a braking portion that applies a braking force to the back door 30 by a door actuator 40 and a clutch 50, which are general configurations for opening and closing the back door 30. Therefore, it is not necessary to separately provide a braking portion on the vehicle 10.

(5) When the door actuator 40 opens and operates the back door 30, the door control device 100 slows down the operating speed VB when the luggage Lg is in contact with the back door 30. Therefore, the user can easily handle the luggage Lg that is about to fall from the luggage compartment 22.

(6) When the door actuator 40 opens and operates the back door 30, the door control device 100 slows down the operating speed VB of the back door 30 as the contact pressure P increases. Therefore, the user can easily handle the luggage Lg that is about to fall from the luggage compartment 22.

This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
-When the user operates the portable device 110 at a position away from the back door 30 to open the back door 30, the user will fall even if the operating speed VB of the back door 30 is less than the reference speed VBs. It may be difficult to deal with the luggage Lg. Therefore, the door control device 100 permits the opening operation of the back door 30 when the opening operation command signal is input in a situation where the user who operates the portable device 110 is located near the back door 30. May be good. On the other hand, the door control device 100 prohibits the opening operation of the back door 30 when the opening operation command signal is input in a situation where the user who operates the portable device 110 is not located near the back door 30. May be good. The distance from the back door 30 to the user may be acquired based on, for example, a detection result of a camera or a distance sensor included in the vehicle 10.

The pressure-sensitive sensor 80 may be configured to be able to detect the contact pressure P for each part of the back door 30. In this case, the door control device 100 may apply a braking force to the back door 30 differently depending on the contact portion of the luggage Lg on the back door 30. For example, the door control device 100 increases the braking force applied to the back door 30 when the luggage Lg comes into contact with the upper part of the back door 30 as compared with the case where the luggage Lg comes into contact with the lower part of the back door 30. May be good. According to this, the door control device 100 can further suppress the fall of the luggage Lg.

The pressure determination value Pth may be a determination value larger than the determination value for determining whether or not the luggage Lg is in contact. That is, even when the luggage Lg is in contact with the back door 30, if the contact pressure P is small, the door control device 100 controls the back door 30 when the user manually opens the back door 30. It is not necessary to give power. Similarly, even when the luggage Lg is in contact with the back door 30, if the contact pressure P is small, the door control device 100 sets the operating speed VB of the back door 30 when the back door 30 is opened. You don't have to slow it down.

As shown in FIG. 2, in the above embodiment, the door control device 100 changes the braking force applied to the back door 30 according to the change in the contact pressure P during the opening operation of the back door 30. , The braking force does not have to be changed. For example, the door control device 100 may continue to apply the target braking force BPT calculated in the first step S15 to the back door 30.

As shown in FIG. 3, in the above embodiment, the door control device 100 changes the operating speed VB of the back door 30 according to the change of the contact pressure P during the opening operation of the back door 30. It is not necessary to change the operating speed VB. For example, the door control device 100 may continue to open and operate the back door 30 at the target speed VBt calculated in the first step S27.

-The "door" may be the side door of the vehicle 10. In this case, the "object" may include the occupant of the vehicle 10. According to this configuration, in a situation where there is an occupant sitting on the seat while leaning against the side door, when the user tries to open the side door, the occupant leaning against the side door is the "cabin". It is possible to suppress the possibility of falling from the door.

The pressure sensor 80 may be a touch sensor that determines whether or not the back door 30 is in contact with the luggage Lg. In this case, the touch sensor may be a touch sensor including a mechanical switch, or may be a capacitive touch sensor.

The vehicle 10 may have a first unlock switch as the unlock switch 32 described above, and a second unlock switch different from the first unlock switch. In this case, when the second unlock switch is operated, the door control device 100 does not have to apply the braking force to the back door 30 even if the luggage Lg is in contact with the back door 30. In other words, the door control device 100 performs the processes after step S12 in FIG. 2 when the first unlock switch is operated, and when the second unlock switch is operated, the process of FIG. 2 shows. It is not necessary to carry out the processing after step S12. According to this, the user can select whether or not to apply the braking force to the back door 30 even when the luggage Lg is in contact with the back door 30 by selecting the unlock switch to be operated.

-The vehicle 10 may be a vehicle not provided with the door actuator 40 as long as it is provided with a braking unit such as an electromagnetic brake that applies a braking force to the door. Even in this case, the door control device 100 can obtain the effects (1) to (3) of the above embodiment.

The door control device 100 is one of one or more processors that operate according to a computer program (software), dedicated hardware that executes at least a part of various processes (integrated circuit for specific applications: ASIC), and the like. It can be configured as the above dedicated hardware circuit or a circuit including a combination thereof. The processor includes a CPU and a memory such as a RAM and a ROM, and the memory stores a program code or a command configured to cause the CPU to execute a process. Memory, or storage medium, includes any available medium accessible by a general purpose or dedicated computer.

10 ... Vehicle 20 ... Body 21 ... Door opening 22 ... Luggage compartment (an example of passenger compartment)
30 ... Backdoor (an example of a door)
31 ... Door handle 32 ... Unlock switch 40 ... Door actuator 41 ... Motor 42 ... Transmission mechanism (example of reducer)
50 ... Clutch 80 ... Pressure sensor 90 ... Notification unit 100 ... Door control device 101 ... Control unit 102 ... Judgment unit Lg ... Luggage (an example of an object)
P ... Contact pressure

Claims (7)

It is applied to a vehicle including a door that opens and closes a door opening leading to the passenger compartment, a braking portion that applies a braking force to the door, and a touch sensor installed on the surface of the door facing the passenger compartment.
A determination unit that determines whether or not an object in the vehicle interior is in contact with the door based on the detection result of the touch sensor.
A control unit that controls the braking unit based on the determination result of the determination unit is provided.
The control unit does not apply the braking force to the door when the object is not in contact with the door, while the control unit applies the braking force to the door when the object is in contact with the door. A vehicle door control device that gives power. The touch sensor is a pressure-sensitive sensor capable of detecting contact pressure.
In a situation where the object is in contact with the door, the control unit touches the door when the contact pressure of the object with respect to the door is large, as compared with the case where the contact pressure of the object with respect to the door is small. The vehicle door control device according to claim 1, wherein the braking force to be applied is increased. The vehicle door control according to claim 1 or 2, wherein the control unit eliminates the braking force when the object does not come into contact with the door under the condition that the braking force is applied to the door. Device. The braking unit is a door actuator having a motor and a speed reducer, and a door actuator that opens and closes the door, and a clutch that cuts or connects a power transmission path between the door actuator and the door. Consists of including
The control unit
When the user manually opens and closes the door, the clutch is disengaged and the drive of the door actuator is stopped, and when the door is automatically opened and closed, the door is connected with the clutch connected. It drives the actuator
Claims 1 to claim that when the user manually opens the door and the object is in contact with the door, the clutch is engaged to apply the braking force to the door. Item 3. The vehicle door control device according to any one of items 3. When the door is opened and operated by the door actuator, the control unit operates the door at a speed higher when the object is in contact with the door than when the object is not in contact with the door. The vehicle door control device according to claim 4. The touch sensor is a pressure-sensitive sensor capable of detecting contact pressure.
When the door is opened by the door actuator while the object is in contact with the door, the control unit contacts the object with the door when the contact pressure of the object with respect to the door is large. The vehicle door control device according to claim 5, wherein the operating speed of the door is slower than when the pressure is small. The vehicle door control device according to any one of claims 1 to 6, wherein the door is a back door.

Images