JP2022049560A - Control device - Google Patents

Abstract

To provide a control device for controlling the opening of a door which can be obtained at low cost and with reduced weight.SOLUTION: A control device 1, mounted on a vehicle for controlling the opening of a door that is opened by an actuator 6 in response to a user's action, which includes: an electrode piece 10 cooperating with the user approaching the vehicle to constitute a pair of electrodes and provided in one-to-one relationship for a door at the vehicle lower part on a road surface side of the vehicle; a capacitance detection unit 20 for detecting a capacitance of the electrode piece 10 with respect to the user; a capacitance change determination unit 30 for determining whether or not a change in capacitance in a predetermined time period has resulted from a change in response to a request instruction for door opening operation by the user's action, based on change information indicating the change in capacitance within the predetermined time period; and an instruction unit 40 for giving an instruction for door opening operation when the capacitance change is determined by the capacitance change determination unit 30 to be a change in accordance with the request instruction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a control device provided in a vehicle for controlling door opening in which an actuator performs a door opening operation according to a user's operation.

Conventionally, a technique for opening and closing a vehicle door by an actuator has been used. As such a technique, for example, there is one described in Patent Document 1 whose source is shown below.

Patent Document 1 describes a vehicle door opening / closing device. This vehicle door opening / closing device includes an electrostatic sensor having a first electrode, a second electrode, and a capacitance change detection unit. The capacitance of the first electrode and the second electrode depends on the distance between the first electrode and the conductor and the distance between the second electrode and the conductor when a conductor such as a human is close to each other. Is configured to change. The capacitance change detection unit detects the proximity of the conductor to the vehicle door based on the change in the capacitance of the first electrode, and opens and closes the vehicle door based on the change in the capacitance in both the first electrode and the second electrode. It is configured to detect instructions.

JP-A-2019-15089

As described above, the technique described in Patent Document 1 detects the proximity to the vehicle door based on the change in the capacitance of the first electrode, and changes the capacitance in both the first electrode and the second electrode. Since the opening / closing instruction of the vehicle door is detected based on the above, two electrodes (first electrode and second electrode) are required to detect the proximity of a person and the opening / closing instruction in one vehicle door. The reason why there are two electrodes is to prevent malfunctions such as small animals and rainfall. Therefore, there is room for improvement from the viewpoint of cost reduction and weight reduction.

Therefore, there is a demand for a control device for controlling the opening of a door, which can reduce the cost and weight, reduce the space, and facilitate mounting.

The characteristic configuration of the control device according to the present invention is a control device provided in a vehicle that controls door opening in which an actuator performs a door opening operation according to a user's operation, and is an electrode constituting one sensor. (For example, a pair of electrodes is formed together with the user who is close to the vehicle, and one electrode is provided for one door in the lower part of the vehicle on the road surface side of the vehicle) and the capacitance in the electrode. Based on the capacitance detection unit that detects the capacitance and the change information indicating the change in the capacitance within a predetermined time, the change in the capacitance in the predetermined time is the effect of the operation of the user on the door. The capacitance change determination unit that determines whether or not the change is in response to the request instruction for the door opening operation and the capacitance change determination unit determine that the change in capacitance is the change in response to the request instruction. In this case, it is provided with an instruction unit for instructing the opening operation of the door.

With such a characteristic configuration, the user gives a non-contact instruction to request the door opening operation to the electrodes provided in the range that can be operated by the user in the vehicle, so that the door can be opened. Operation instructions can be given. Further, since one electrode is provided for one door, the configuration related to the electrode can be simplified, the cost and the weight can be reduced, and the space can be reduced (easy to mount). It is possible to promote.

Further, the control device further includes a storage unit for storing in advance reference information used for determining whether or not the change information is a change according to the request instruction of the user, and the capacitance change. It is preferable that the determination unit determines by comparing the change information based on the capacitance detected by the capacitance detection unit with the reference information.

With such a configuration, by comparing the capacitance detection result with the reference information, it is possible to appropriately determine whether or not the user has instructed to request the door opening operation. Further, by storing the reference information according to the user's operation in advance, it is possible to make a more appropriate determination.

Further, the reference information is defined by the number of times the capacitance exceeds a preset determination threshold value and the temporal change in which the capacitance exceeds the determination threshold value within the predetermined time. Suitable.

With such a configuration, the user gives a request instruction for the door opening operation, the number of predetermined operations by the user, the speed at which the body moves when the operation is performed, and the body (body such as hands and feet) approaching the electrodes. It is possible to increase the authenticity of the request instruction by the user (the accuracy of determining whether or not the request instruction is made by the user) by complicating the form of the case and the form when the body is separated from the electrode.

Further, the control device is a captured image acquisition unit that acquires an captured image captured by a camera mounted on the vehicle, and whether or not a person included in the captured image is a user who intends to give the request instruction. Further, an image determination unit for determining whether or not the image is based on the captured image is further provided, and the capacitance change determination unit is a user who intends to give the request instruction by the person included in the captured image by the image determination unit. It is preferable to determine whether or not there is a change in capacitance in response to the required instruction when the change information is input within a predetermined time after the determination.

With such a configuration, for example, it is possible to make a determination based on the capacitance after detecting that the user's face or body (limbs, etc.) is facing the vehicle side or standing. .. Therefore, it is possible to estimate whether or not there is a request instruction for the door opening operation by the user and make a more appropriate determination. Further, for example, it is possible to prevent the determination of the change in capacitance related to a user other than the user who intends to instruct the request for the door opening operation, so that it is possible to suppress the execution of unnecessary arithmetic processing.

Further, the electrode is inside the outer edge portion of the vehicle in a plan view, and the distance between the electrode and the road surface is longer than the distance between the lowermost end of the lower part of the vehicle and the road surface. It is preferable that it is provided in.

With such a configuration, it is possible to mount an electrode on the road surface side of the vehicle and form a structure in which a part of the vehicle protrudes between the portion where the electrode is provided and the outer edge of the vehicle. can. Therefore, the structure in which a part of the vehicle protrudes can prevent water flowing from above or from the side of the vehicle from reaching the electrodes. Therefore, it is possible to suppress the occurrence of such false detection due to water. In addition, since it is possible to reduce the change in capacitance caused by the water flowing from above the vehicle along the side surface, it is possible to easily distinguish it from the operation by the user.

It is a top view of the vehicle which has a door which can give a door opening operation instruction by a control device. It is a figure which shows the door which opened by the door opening operation instruction of a control device. It is a block diagram which shows the structure of the control device of this embodiment. It is a figure which shows the arrangement example of the conventional electrode. It is a figure which shows the arrangement example of an electrode. It is a figure which shows the arrangement example of an electrode. It is a figure which shows the request instruction of the door opening operation by a user. It is a figure which shows the request instruction of the door opening operation by a user. It is a figure which shows the request instruction of the door opening operation by a user. It is a figure which shows the request instruction of the door opening operation by a user. It is a figure which shows the request instruction of the door opening operation by a user. It is a figure which shows the request instruction of the door opening operation by a user. It is a figure which shows the determination example by the capacity change determination unit. It is a figure which shows an example of the captured image. It is a figure which shows an example of the captured image.

The control device according to the present invention is configured to be able to control the opening of a door provided in a vehicle in which the door opening operation is performed by an actuator according to the user's operation. Hereinafter, the control device 1 of the present embodiment will be described.

FIG. 1 is a plan view of a vehicle 2 having a door 3 whose door opening is controlled by the control device 1 according to the present embodiment. Specifically, the control device 1 controls, for example, the opening of the slide door 3L on the left side of the vehicle 2, the slide door 3R on the right side of the vehicle 2, and the back door 3B of the vehicle 2. These doors 3 are opened by the actuator 6 (see FIG. 3) according to the operation of the user 4 (see FIG. 2). That is, the door 3 is instructed to open by the operation of the user 4, and the door 3 is opened. FIG. 2 shows a state in which the slide door 3L on the left side of the vehicle 2 is opened.

FIG. 3 is a block diagram schematically showing the configuration of the control device 1 according to the present embodiment. As shown in FIG. 3, the control device 1 includes an electrode 10, a capacitance detection unit 20, a capacitance change determination unit 30, an instruction unit 40, a storage unit 50, an image capture image acquisition unit 60, and an image determination unit 70. Each functional unit is configured with hardware, software, or both with a CPU as a core member in order to perform processing related to control of door opening of the door 3.

As shown in FIG. 2, the electrode 10 constitutes a set of electrode pairs together with the user 4 close to the vehicle 2, and one electrode 10 is provided for one door 3 in the lower part of the vehicle on the road surface R side of the vehicle 2. Be done. The "user 4 in close proximity to the vehicle 2" is a person who intends to open the door 3 of the vehicle 2. "To form a pair of electrodes together with the user 4" means to form a pair of electrodes with a part of the body of the user 4 and the electrodes 10. The "lower part of the vehicle on the road surface R side of the vehicle 2" corresponds to a portion of the vehicle 2 near the road surface R. "One electrode 10 is provided for one door 3" means that one electrode 10 is provided for each door 3. Therefore, the electrode 10, together with a person who intends to open the door 3 of the vehicle 2, constitutes a pair of electrodes with a part of the person's body and the electrode 10, and is close to the road surface R in the vehicle 2. At the site, one electrode 10 is provided for each door 3.

In the present embodiment, the electrode 10 is inside the outer edge 2E of the vehicle 2 in a plan view, and the distance between the electrode 10 and the road surface R is larger than the distance between the lowermost end 2L of the lower part of the vehicle and the road surface R. Is also provided to be long. The "lowermost end 2L of the lower part of the vehicle" is the lowermost end 2L in the range from the outer edge portion 2E of the vehicle 2 to the position where the user 4 can perform the operation related to the request instruction for the door opening operation of the door 3. .. An example of such an arrangement of the electrodes 10 is shown in FIGS. 5 to 6. Further, FIG. 4 shows an example of a conventional arrangement form. It should be noted that FIGS. 4 to 6 show an electrode 10 for instructing the opening of the slide door 3L on the left side of the vehicle 2. As shown in FIGS. 5 and 6, the electrode 10 is inside the outer edge 2E of the vehicle 2 in a plan view, that is, the door 3 to which the door opening instruction is received (in FIGS. 5 to 6). It is on the center side in the vehicle width direction with respect to the slide door 3L), and the distance between the electrode 10 and the road surface R is longer than the distance between the lowermost lower end 2L of the lower part of the vehicle and the road surface R, that is, the electrode. It is provided so that a part of the vehicle 2 exists on the side closer to the road surface R than the 10. In other words, as shown in FIGS. 5 and 6, a portion is provided between the portion where the electrode 10 is provided and the outer edge portion 2E of the vehicle 2 so as to project at least toward the road surface R side from the electrode 10. .. With such a configuration, in the conventional example shown in FIG. 4, the structure is such that water travels along the outer edge portion 2E of the vehicle 2 and reaches the vicinity of the electrode 10 or the electrode 10 during rainfall or car wash. As shown in FIGS. 5 and 6, the water can be prevented from reaching the electrode 10 and the vicinity of the electrode 10. Therefore, it is possible to suppress a malfunction (acceptance of an erroneous instruction) due to water transmitted through the outer edge portion 2E.

Returning to FIG. 3, the capacitance detection unit 20 detects the capacitance in the electrode 10. The "capacitance in the electrode 10" is the capacitance in the electrode 10 constituting a pair of electrodes together with the user 4 described above, and specifically, the capacitance between the user 4 and the electrode 10. Is equivalent. Therefore, the capacitance detection unit 20 detects the capacitance between the user 4 and the electrode 10. The detection result of the capacitance detected by the capacitance detection unit 20 is transmitted to the capacitance change determination unit 30 described later.

The capacitance change determination unit 30 responded to a request instruction for opening the door 3 by the operation of the user 4 based on the change information indicating the change of the capacitance within the predetermined time. Determine if it is a change. As described above, the capacitance detection unit 20 transmits the capacitance detection result to the capacitance change determination unit 30. The "change in capacitance within a predetermined time" corresponds to a change in capacitance detected by the capacitance detection unit 20 within a preset time (for example, within a few seconds). In the present embodiment, the information indicating such a change in capacitance is treated as change information. The "request instruction for opening the door 3 by the operation of the user 4" is a request instruction by a predetermined operation given by the user 4 with the intention of opening the door 3. Therefore, the capacitance change determination unit 30 causes the user 4 to change the capacitance based on the change information indicating the change in the capacitance detected by the capacitance detection unit 20 in a preset time. It is determined whether or not the change is in response to a request instruction due to a predetermined operation performed with the intention of opening the door 3.

7 to 12 show an example of a request instruction for the door opening operation by the user 4. In the example of FIG. 7, the operation of bringing the foot 4A closer to the electrode 10 is continuously performed twice. That is, the foot 4A is brought close to the electrode 10 (# 71), and then the foot 4A is once moved away from the electrode 10 (# 72). After that, the foot 4A is brought closer to the electrode 10 again (# 73). By performing such a series of operations within a certain period of time, it is possible to distinguish it from the accidental approach of an object.

In the example of FIG. 8, the user 4 brings the foot 4A close to the electrode 10, stops once (for example, for several seconds), and then performs a series of operations to return the foot 4A to the original position. That is, the foot 4A is brought close to the electrode 10 (# 81), and in that state, the foot 4A is allowed to stand still for several seconds (# 82). Then, the foot 4A is moved away from the electrode 10 (# 83).

In the example of FIG. 9, the user 4 brings the foot 4A close to the electrode 10, swings the foot 4A sideways in that state, and then performs a series of operations to return the foot 4A to the original position. That is, the foot 4A is brought close to the electrode 10 (# 91), and in that state, the foot 4A is shaken sideways along the front-rear direction (vehicle length direction) of the vehicle 2 for several seconds (# 92). Then, the foot 4A is moved away from the electrode 10 (# 93). In this way, by adding a stop or irregular movement to a series of operations, it is possible to distinguish it from a malfunction.

In the example of FIG. 10, a series of operations are performed so that the speed at which the user 4 brings the foot 4A closer to the electrode 10 and the speed at which the user 4 moves the foot 4A away from the electrode 10 are extremely different. That is, the foot 4A is brought closer to the electrode 10 at a velocity V1 (# 101- # 102). That word, the foot 4A is moved away from the electrode 10 at a velocity V2 (# 103). At this time, it is preferable that V1 <V2. V2 should be at least twice as large as V1. This is because, in general, the speed at the time of separation is often slower than the speed at the time of approach, so in order to clearly distinguish the intention of the user 4, the speed at the time of approach is larger than the speed at which the user 4 is approached. By making the speed of time faster. Of course, V1> V2 may be satisfied.

In the example of FIG. 11, the user 4 performs a series of operations to bring the foot 4A closer to the electrode 10 in two steps. That is, the foot 4A is brought close to the electrode 10 (# 111), and in that state, the movement of the foot 4A is temporarily stopped (# 112). After that (a few seconds later), the foot 4A is brought closer to the electrode 10 from that position (# 113).

In the example of FIG. 12, the user 4 once brings the foot 4A close to the electrode 10 with a sliding foot or the like, and then brings the foot 4A close to the electrode 10 and performs a series of operations to return the foot 4A to the original position. That is, the foot 4A is brought closer to the lower side of the electrode 10 by a sliding foot or the like (# 121), and the foot 4A is brought closer to the electrode 10 from that state (# 122). Then, the foot 4A is moved away from the electrode 10 (# 123). In this way, once the foot 4A is brought closer to the lower side of the electrode 10, it becomes possible to detect the object before the object further approaches the electrode 10.

In the present embodiment, the storage unit 50 shown in FIG. 3 is provided so that the capacity change determination unit 30 can appropriately perform the above-mentioned determination. The storage unit 50 stores in advance reference information used for determining whether or not the change information is a change according to the request instruction of the user 4. The reference information may be information consisting of a waveform showing a change in capacitance similar to the change in capacitance in response to a request instruction for the door opening operation of the door 3 performed by the user 4, or the user 4 It may be information that defines the feature amount in the change of the capacitance according to the request instruction of the door opening operation of the door 3 performed by.

When using information consisting of a waveform showing a change in capacitance similar to a change in capacitance in response to a request instruction for opening the door 3 performed by the user 4 as reference information, a capacitance change determination is made. The unit 30 uses the capacitance detection result from the capacitance detection unit 20 as reference information, and is the same as the change in the capacitance in response to the request instruction of the door opening operation of the door 3 performed by the user 4. It is good to judge by comparing with the waveform showing the change of capacitance.

Further, when the information defining the feature amount in the change of the capacitance in response to the request instruction of the door opening operation of the door 3 performed by the user 4 is used as the reference information, the basic information is within a predetermined time. , It is preferable to specify by the number of times that the capacitance exceeds the preset determination threshold value and the temporal change in which the capacitance exceeds the determination threshold value. The "number of times the capacitance exceeds a preset determination threshold value within a predetermined time" is transmitted as a detection result from the capacitance detection unit 20 within the above-mentioned preset time (for example, about several seconds). The number of times the capacitance value exceeds a preset determination threshold. For example, it is preferable that this number of times is also specified by the operation of the user 4 in response to the request instruction, such as twice or three times. The "time change in which the capacitance exceeds the determination threshold value" is the value of the capacitance transmitted as a detection result from the capacitance detection unit 20 in the above-mentioned preset time (for example, about several seconds). Is the time that exceeds the preset determination threshold value. Further, the "temporal change" includes a temporal change of the capacitance, that is, a temporal change of the capacitance according to the speed, acceleration, stop, etc. of the user 4. Also in this case, it is preferable that the capacitance change determination unit 30 determines the change information based on the capacitance detected by the capacitance detection unit 20 by comparing with the reference information.

FIG. 13 shows an example of determination by the capacity change determination unit 30 using the reference information stored in the storage unit 50. FIG. 13 (I) shows the reference information stored in the storage unit 50. In this example, the vertical axis is the capacitance and the horizontal axis is the time. The judgment criteria here are the number of times the capacitance exceeds the judgment threshold value C1 within a predetermined time T (the number of times during which the peak value of the waveform continuously exceeds the judgment threshold value C1 is one time), and static. The time t1 (the time from the time when the peak value of the waveform continuously exceeds the judgment threshold C1 to the time when it first exceeds the judgment threshold C1 and finally falls below the judgment threshold C1) is used when the capacitance exceeds the judgment threshold C1. Be done. When the capacitance change determination unit 30 acquires the capacitance detection result as shown in FIG. 13 (II) from the capacitance detection unit 20, the capacitance change determination unit 30 uses the reference in FIG. 13 (I). Judgment is made by comparing the information with the acquired detection result of FIG. 13 (II). In the detection result of (II) of FIG. 13, the number of times the capacitance exceeds the determination threshold C1 is twice within the predetermined time T, and the time when the capacitance exceeds the determination threshold C1 is t2, respectively. Yes (provided that t2> t1). In this case, the capacitance change determination unit 30 opens the door 3 by the operation of the user 4 as the change indicated by the capacitance detection result shown in FIG. 13 (II) acquired from the capacitance detection unit 20. It is determined that the change is in accordance with the instruction of. In the example of FIG. 13, "OK" is described as the determination result.

On the other hand, when the capacitance change determination unit 30 acquires the capacitance detection result as shown in FIG. 13 (III) from the capacitance detection unit 20, the capacitance change determination unit 30 obtains the capacitance detection unit 30 in FIG. 13 (I). The reference information of FIG. 13 and the acquired detection result of FIG. 13 (III) are compared and determined. In the detection result of (III) of FIG. 13, the number of times that the capacitance exceeds the determination threshold value C1 within the predetermined time T is once. In this case, the capacitance change determination unit 30 opens the door 3 by the operation of the user 4 as the change indicated by the capacitance detection result shown in FIG. 13 (III) acquired from the capacitance detection unit 20. It is judged that the change does not correspond to the instruction of. In the example of FIG. 13, "NG" is described as the determination result.

Although not shown, the capacitance change determination unit 30 gives an instruction to open the door 3 by the operation of the user 4 even when the capacitance exceeds the determination threshold value C1 three times or more within the predetermined time T. The capacity change determination unit 30 may be configured to determine that the change does not correspond to the change according to the user 4, or even when the time when the capacitance exceeds the determination threshold value C1 is shorter than t1, the capacitance change determination unit 30 is a door due to the operation of the user 4. It may be configured so that it is determined that the change does not correspond to the instruction of the door opening operation of 3. The determination result of the capacity change determination unit 30 is transmitted to the instruction unit 40 described later.

Returning to FIG. 3, the instruction unit 40 gives an instruction to open the door 3 when the capacitance change determination unit 30 determines that the change in capacitance is a change in response to the request instruction. Whether or not the change in capacitance is determined by the capacitance change determination unit 30 to be a change in response to a request instruction can be specified by the determination result transmitted from the capacitance change determination unit 30. The door opening operation instruction of the door 3 is an instruction to operate the actuator 6 so as to open the door 3 for which the user 4 has instructed to open the door. The instruction unit 40 can be configured to operate the actuator 6 directly by the door opening operation instruction, or transmits the door opening operation instruction to the actuator control unit 7 that controls the operation of the actuator 6 to control the actuator. It is also possible to configure the unit 7 to operate the actuator 6 to open the door 3.

Here, the capacitance change determination unit 30 may be configured to make a determination each time the capacitance detection result is transmitted by the capacitance detection unit 20, but first, the surrounding scene of the vehicle 2 is imaged. Based on the captured image, it is determined (estimated) whether or not the people around the vehicle 2 have the intention of opening the door 3, and the capacitance change determination unit 30 determines based on the result. It is also possible to configure.

In such a case, the control device 1 may acquire the captured image captured by the camera 5 mounted on the vehicle 2 by the captured image acquisition unit 60. The camera 5 can be used in combination with, for example, a camera 5 that monitors the periphery of the vehicle 2. Specifically, the front camera 5A provided in the front central portion of the vehicle 2, the back camera 5B provided in the rear central portion of the vehicle 2, and the left camera 5C provided in the left door mirror of the vehicle 2 as shown in FIG. , It is possible to use the right camera 5D provided in the right door mirror of the vehicle 2. The captured image acquisition unit 60 acquires an captured image of the surrounding scene of the vehicle 2 from such a camera 5.

Returning to FIG. 3, the image determination unit 70 determines based on the captured image whether or not the person included in the captured image is the user 4 who intends to give a request instruction. Specifically, the image determination unit 70 determines (estimates) whether or not a person is included in the captured image by image recognition processing, and when the captured image contains a person, the person opens the door 3. Determine if you intend to give a door request instruction. For example, as shown in FIG. 14, when an image is taken by the left camera 5C provided on the left door mirror of the vehicle 2, when the person included in the image is standing facing the slide door 3L side, It is good to judge that the intention to give the request instruction is the user 4. On the other hand, as shown in FIG. 15, when the person included in the captured image does not face the slide door 3L side or is crouching in front of the slide door 3L, the intention to give the request instruction is not the user 4. It is good to judge that. The determination result by the image determination unit 70 is transmitted to the capacitance change determination unit 30.

Returning to FIG. 3, the capacitance change determination unit 30 is determined by the image determination unit 70 to be the user 4 in which the person included in the captured image intends to give a request instruction, and after the determination, the change information is within a predetermined time. When is input, it is preferable to determine whether or not the capacitance is changed according to the requested instruction. That is, the capacitance change determination unit 30 transmits the result of determination from the above-mentioned image determination unit 70 that the person included in the captured image intends to give a request instruction to the user 4, and the determination result is transmitted. Then, when the capacitance detection result is transmitted from the capacitance detection unit 20 within a predetermined time (for example, several seconds), the capacitance detection result is used to determine the capacitance according to the request instruction. It is good to judge whether it is a change or not. When it is determined that the captured image includes a person, the capacitance change determination unit 30 determines the capacitance based on the electrode 10 provided on the imaging range side of the camera 5 that has captured the captured image including the person. It is good to judge using the detection result. This makes it possible to prevent unnecessary determination processing by the capacity change determination unit 30, such as when a dog, a cat, or the like passes around the vehicle 2. Further, it is possible to prevent the determination process for a person (for example, a passerby or a suspicious person) who approaches without having the intention of opening the door 3 of the vehicle 2.

[Other embodiments]
In the above embodiment, the request instruction related to the door opening operation of the door 3 has been described as an example, but it can also be used for the request instruction related to the door closing operation of the door 3 and the lock of the door 3 is unlocked. It is also possible to use it for requesting and instructing locking.

In the above embodiment, it has been described that the storage unit 50 stores in advance the reference information used for determining whether or not the change information is a change according to the request instruction of the user 4. It is also possible to configure the capacity change determination unit 30 to store only the feature amount used for the determination without storing the reference information.

In the above embodiment, the reference information is described as being defined by the number of times the capacitance exceeds a preset determination threshold value and the temporal change in which the capacitance exceeds the determination threshold value within a predetermined time T. However, the reference information can also be specified by other features.

In the above embodiment, the capacitance change determination unit 30 is determined by the image determination unit 70 to be the user 4 in which the person included in the captured image intends to give a request instruction, and after the determination, the change information is within a predetermined time. Was described as determining whether or not the capacitance has changed according to the request instruction, but the capacitance change determination unit 30 responds to the request instruction without using the determination result of the captured image. It is also possible to configure it so as to determine whether or not it is a change in capacitance.

In the above embodiment, the electrode 10 is inside the outer edge 2E of the vehicle 2 in a plan view, and the distance between the electrode 10 and the road surface R is larger than the distance between the lowermost end 2L of the lower part of the vehicle and the road surface R. Although it has been described that the electrodes 10 are provided so as to be long, the electrodes 10 may be provided on the outer edge portion 2E of the vehicle 2, and the distance between the electrodes 10 and the road surface R is such that the lowermost end 2L of the lower part of the vehicle and the road surface R are provided. It does not have to be provided so as to be longer than the distance from.

In the above embodiment, it has been described that the door 3 opening operation request instruction is performed by the operation of the user 4, but the door opening operation request instruction is received when the user 4 holds the key of the vehicle 2, for example. It may be configured as follows.

INDUSTRIAL APPLICABILITY The present invention can be used in a control device provided in a vehicle for controlling door opening in which an actuator performs a door opening operation according to a user's operation.

1: Control device 2: Vehicle 2E: Outer edge 2L: Bottom edge 3: Door 4: User 5: Camera 6: Actuator 10: Electrode 20: Capacitance detection unit 30: Capacitance change determination unit 40: Indicator 50: Memory Unit 60: Captured image acquisition unit 70: Image determination unit R: Road surface

Claims (5)

A control device provided in a vehicle that controls door opening in which an actuator performs a door opening operation according to a user's operation.
A pair of electrodes is formed together with the user in the vicinity of the vehicle, and one electrode is provided for one door in the lower part of the vehicle on the road surface side of the vehicle.
Capacitance detection unit that detects the capacitance of the electrode,
Based on the change information indicating the change in the capacitance within the predetermined time, the change in the capacitance in the predetermined time is the change according to the request instruction of the door opening operation of the door by the operation of the user. Capacitance change determination unit that determines whether or not there is
When the capacitance change determination unit determines that the change in capacitance is a change in response to the required instruction, the instruction unit that gives an instruction to open the door and the instruction unit.
A control device equipped with. Further provided with a storage unit for preliminarily storing reference information used for determining whether or not the change information is a change according to the request instruction of the user.
The control device according to claim 1, wherein the capacitance change determination unit determines the change information based on the capacitance detected by the capacitance detection unit by comparing it with the reference information. The reference information is defined by the number of times the capacitance exceeds a preset determination threshold value and the temporal change in which the capacitance exceeds the determination threshold value within the predetermined time. The control device described in. An image capture unit that acquires an image captured by a camera mounted on the vehicle, and an image acquisition unit.
Further provided with an image determination unit for determining whether or not the person included in the captured image is a user who intends to give the request instruction based on the captured image.
The capacitance change determination unit determines that the person included in the captured image is a user who intends to give the request instruction by the image determination unit, and the change information is input within a predetermined time after the determination. The control device according to any one of claims 1 to 3, which determines whether or not the capacitance is changed according to the required instruction. The electrode is provided so as to be inside the outer edge of the vehicle in a plan view and the distance between the electrode and the road surface to be longer than the distance between the lowermost end of the lower part of the vehicle and the road surface. The control device according to any one of claims 1 to 4.

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