JP5354258B2 - Opening and closing body control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing body control device, capable of satisfactorily detecting an artificial knocking operation by a user, when opening and closing an opening/closing body together with the location to which the knocking operation is added. <P>SOLUTION: The control device includes a vibration detecting sensor 1 which is set on the opening/closing body or a structural member around the opening/closing body to detect a vibration caused by a knocking operation to the opening/closing body or the structural member by the user; a filter part 3 which extracts a signal with a predetermined frequency band corresponding to a plurality of bands from a sensor output signal of the vibration detecting sensor 1; a knocking feature determination part 4 which determines whether the sensor output signal of the vibration detecting sensor 1 passed through the filter part 3 has a knocking feature or not; and a knocking operation determination part 6 which determines, based on the determination result of the knocking feature determination part 4, presence/absence of the knocking operation to the opening and closing body or the structural member and the location to which the knocking operation is added. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an opening / closing body control device that detects a user's opening / closing instruction to the opening / closing body for opening / closing the opening / closing body or a structural member around the opening / closing body.

  As an example of such an opening / closing body control device, there is a vehicle door opening / closing device that detects a user's opening / closing instruction to the vehicle door for opening / closing the vehicle door. As an example of a vehicle door opening / closing device, a vehicle door opening / closing device linked with a locking system (smart entry system) that automatically controls unlocking and locking of a vehicle door is known. Such a locking system detects a user approaching or getting off a vehicle through communication with a portable device carried by the user, and recognizes an instruction to unlock or lock the user's vehicle door. Controls locking and unlocking of vehicle doors. Japanese Patent Laid-Open No. 2002-295064 (Patent Document 1) discloses a vehicle door opening / closing device in such a smart entry system in which a detection electrode is provided on a door handle that allows a user to open and close the vehicle door. Proposed. In this vehicle door opening and closing device, static electricity generated by inserting a user's hand between the detection electrode and the vehicle door using an electrostatic capacitance formed between the detection electrode and the vehicle door. Recognize user's instructions by detecting changes in capacitance. Japanese Patent Laying-Open No. 2005-98016 (Patent Document 2) describes a vehicle door opening / closing device that verifies a personal identification number by a vibration rhythm by grasping a door handle to unlock or lock the door handle.

JP 2002-295064 A (2nd to 9th paragraphs, etc.) JP-A-2005-98016 (paragraphs 90 to 101, FIG. 20, etc.)

  In a conventional vehicle door opening / closing device that detects a change in capacitance between a detection electrode provided on a door handle and a vehicle door, even if it is not a user's hand, the detection electrode and the vehicle door are not connected. If there are air and medium constants different from each other, the capacitance changes. For this reason, a change in capacitance may be detected due to environmental changes such as rain. In a system that automatically performs operations from unlocking to fully opening the door, the door opens due to a malfunction, regardless of the user's will. May end up. Further, when opening the door, it is necessary to insert a hand into the door handle or operate the remote key, but further improvement in operability is required. Even when the door is opened / closed by rhythmical hitting, the door that is not opened / closed by the user may be opened / closed unless the vehicle vibration and the hitting vibration are clearly distinguished. In addition, there is a possibility that a door that has not been opened and closed by a user will open and close due to vibrations caused by rain or hail.

  Further, when a sensor for detecting an opening / closing operation by a user is provided on the door handle as in the conventional case, the structure of the door handle may be complicated, or the design of the door handle may be impaired. Further, when the vehicle is produced, it is necessary to adjust the sensitivity of the sensor in a state where the door handle is attached to the vehicle door in order to ensure the reliability, so that the productivity is impaired. Therefore, a vehicle door opening and closing device that can detect a hitting operation on the vehicle door without depending on the door handle is desired. Further, in order to detect a hitting operation on the vehicle door without depending on the door handle, it is required that the hitting location can be accurately detected. That is, there is a need for an opening / closing body control device that can accurately detect a hitting operation on the opening / closing body or a structural member around the opening / closing body together with the hitting location.

  The present invention was devised in view of the above problems, and is capable of well detecting an artificial hitting operation by a user at the time of opening / closing the opening / closing member together with a place where the hitting operation is applied. An object is to provide a control device.

In order to achieve the above object, the characteristic configuration of the opening / closing body control device according to the present invention is as follows:
A vibration detection sensor that is installed in the opening / closing body or a structural member around the opening / closing body and detects vibration generated by a hitting operation on the opening / closing body or the structural member by a user;
A filter unit for extracting a signal of a predetermined frequency band corresponding to a plurality of bands from a sensor output signal of the vibration detection sensor;
Whether or not the sensor output signal that has passed through the filter unit has a hit characteristic, a hit characteristic determination unit that determines for each of the plurality of bands,
Based on the determination result of the hitting feature determination unit, a hitting operation determination unit that determines the presence / absence of a hitting operation on the opening / closing body or the structural member and a place where the hitting operation has been added , and
The operation contents are different depending on the place where the hit operation is applied .

  According to this characteristic configuration, based on the sensor output signal from the vibration detection sensor that detects the vibration generated by the hitting operation to the opening / closing body and the structural member, the presence / absence of the hitting operation and the place where the hitting operation is applied are determined. . It has been discovered by the inventors that the frequency of vibration generated by the hitting operation differs depending on the position of the opening / closing body or the structural member to which the hitting operation is applied. Accordingly, by determining the presence or absence of a hitting feature for each of a plurality of bands, it is possible to determine an artificial hitting operation together with a place where the hitting operation is applied. As described above, according to this characteristic configuration, the opening / closing body control device capable of well detecting an artificial hitting operation by the user when opening / closing the opening / closing body together with a place where the hitting operation is applied. It becomes possible to provide.

In addition, the opening / closing body control device according to the present invention further passes the filter unit for the presence / absence of resonance vibration generated in the opening / closing body or the structural member in accordance with a hitting operation to the opening / closing body or the structural member. A resonance determination unit for determining based on the sensor output signal,
Preferably, the hitting operation determination unit determines the presence / absence of a hitting operation on the opening / closing body or the structural member and the place where the hitting operation is applied based on the determination results of the hitting characteristic determination unit and the resonance determination unit. It is.

The rigidity of the opening / closing body such as the door panel of the vehicle door and the structural members around the opening / closing body is not uniform, and the frequency of vibration generated by the tapping operation varies depending on the position of the opening / closing body to which the tapping operation is applied. Has been discovered. It has also been discovered by the inventor that when a hit operation is performed on a position with low rigidity, resonance vibration is generated in the entire opening / closing body such as a door panel. Therefore, it is possible to determine whether or not the hit operation has been performed at a position where the rigidity of the opening / closing body is low by determining the presence / absence of resonance vibration generated in the opening / closing body by the resonance determining unit. In other words, with the above configuration, it is possible to provide an opening / closing body control device capable of well detecting an artificial tapping operation by a user when opening / closing the opening / closing body together with a place where the tapping operation is applied. It becomes.
In addition, it is preferable that a first area and a second area having relatively lower rigidity than the first area are set as places where the hit operation is applied.

Moreover, the vehicle door opening and closing apparatus according to the present invention includes:
The filter unit is
A first filter that passes the sensor output signal in a first frequency band corresponding to the frequency of vibration generated by the hitting operation;
A second filter that passes the sensor output signal in a second frequency band lower than the first frequency band, and
The hit feature determination unit
A first tapping feature determination unit that determines whether or not the sensor output signal that has passed through the first filter has a tapping feature;
A second tapping feature determination unit that determines whether or not the sensor output signal that has passed through the second filter has a tapping feature;
The resonance determination unit outputs the sensor output signal that has passed through the second filter or the sensor output signal that has passed through a third filter that passes the sensor output signal in a third frequency band lower than the second frequency band. Based on the presence or absence of the resonance vibration,
The hitting operation determination unit is
Based on the determination result of the first hit characteristic determination unit, it is determined whether or not a hit operation has been performed on the first region of the opening / closing body or the structural member,
Based on the determination results of the second hit characteristic determination unit and the resonance determination unit, it is determined whether or not a hit operation has been performed on the second region of the opening / closing body or the structural member,
It is preferable.

  Sensors having different frequencies depending on the position of the opening / closing body or the structural member to which the tapping operation is applied by allowing the first filter unit and the second filter unit to pass sensor output signals of the first frequency band and the second frequency band, respectively. The output signal is well separated. Then, the first hit feature determination unit and the second hit feature determination unit determine the presence or absence of the hit feature for each separated sensor output signal. Therefore, it is well determined whether or not the hitting feature is included in the sensor output signal having a different frequency depending on the position of the opening / closing body or the structural member to which the hitting operation is applied. Furthermore, the presence or absence of resonance vibration is determined based on the sensor output signal that has passed through the third filter or the sensor output signal that has passed through the second filter.

  Hereinafter, an embodiment of the present invention will be described based on the drawings, taking as an example the case where the opening / closing body is a vehicle door. FIG. 1 is a side view of a vehicle 21 on which a vehicle door opening / closing device as an example of the opening / closing body control device of the present invention is mounted. In the present embodiment, the door (vehicle door, opening / closing body) 22 of the vehicle 21 is a sliding door that can be automatically opened and closed by an actuator such as a motor (not shown) controlled by a door ECU 20 described later. The door ECU 20 receives the determination result as to whether or not there has been an artificial operation for opening / closing instructions from the operation determination unit of the vehicle door opening / closing device, and drives the actuator to open / close the slide door 22. The opening / closing instruction by the user is implemented as an artificial operation on the door panel 23 facing the outside of the slide door 22. The artificial operation is, for example, a tapping operation that knocks the door panel 23. The door panel 23 is provided with a vibration detection sensor 1 that detects vibration caused by a tapping operation on the door panel 23 while being supported by the door panel 23. The door frame and the vehicle body that support the slide door 22 correspond to the structural members around the opening / closing body of the present invention.

  FIG. 2 is an explanatory view schematically showing a structural example of a vehicle door opening and closing device. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2, showing an example of the relationship between the installation modes of the vibration detection sensor 1. The vibration detection sensor 1 has a door panel 23 inside the door panel 23 corresponding to a position where a door handle is generally provided, such as a position 30 (first region 8) shown in FIGS. It is directly supported by and installed. Further, in this example, the vibration detection sensor 1 is installed with at least one strip-shaped end C fixedly supported.

  In the present embodiment, the thickness D2 of the door panel 23 at the site where the vibration detection sensor 1 is installed is thinner than the thickness D1 of the other site, and the structure is more easily received by vibration. FIG. 3 shows an example in which a rib 24 that sandwiches or surrounds the vibration detection sensor 1 is provided inside the door panel 23 at a portion where the vibration detection sensor 1 of the door panel 23 is installed. Since the vibration detection sensor 1 is installed on the door panel 23 surrounded by the ribs 24, stress other than the stress applied as an artificial operation is detected in the region where the vibration detection sensor 1 is installed (region 30). Transmission to the sensor 1 can be suppressed.

  In addition, it is not restricted to the said structure, You may fasten and install with the volt | bolt using the supporting member which has the boss | hub for attachment and a flange. In addition, when the vibration detection sensor 1 is installed using a support member, it does not prevent the support member from being a door handle. A wiring 16 (16a, 16b) extends from the vibration detection sensor 1 and is connected to the operation determination unit 2 provided inside the door panel 23.

  The vibration detection sensor 1 is constituted by a piezoelectric sensor in the present embodiment. In the present embodiment, the vibration detection sensor 1 is a strip-shaped piezoelectric sensor configured by sandwiching a first electrode 12, a piezoelectric body 13, and a second electrode 14 between a coating 11 and a coating 15. . The piezoelectric body 13 is sandwiched between the first electrode 12 and the second electrode 14. The electric charge generated due to the piezoelectric effect due to the stress applied to the piezoelectric body 13 is detected by the first electrode 12 and the second electrode 14. A first wiring 16 a is connected to the first electrode 12, and a second wiring 16 b is connected to the second electrode 14 and transmitted to the operation determination unit 2. When the door panel 23 is struck in the direction of the arrow, stress is applied to the vibration detection sensor 1. The electric charge generated by the piezoelectric effect in response to the stress is detected by the operation determination unit 2, and the presence or absence of an artificial operation is determined.

  As described above, the rigidity where the vibration detection sensor 1 is attached varies depending on the thickness of the door panel 23, the presence or absence of the ribs 24, and the like. That is, the rigidity of the door panel 23 varies depending on the location. And the vibration which arises in the door panel 23 also changes with the rigidity of the place where a tap operation is added. Generally, a location where a ridge (not shown) or rib 24 is provided inside the door panel 23, a location where it is screwed to the inner panel, a location where the door panel 23 is thick, and the door panel 23 is bent. The rigidity is high in places where unevenness is provided. On the other hand, a portion where the door panel 23 is flat, such as a central portion of the door panel 23, has low rigidity.

  FIG. 4 is a waveform diagram schematically showing a difference in vibration waveform due to a difference in rigidity of the door panel. Here, the output signal of the vibration detection sensor 1 is illustrated. The vibration waveform (a) generated by the hitting operation to a place having high rigidity has a relatively high vibration frequency, and the vibration waveform (b) generated by the hitting operation to a place having low rigidity has a relatively high vibration frequency. Low. Further, in the case of a hit operation to a place with low rigidity, door resonance of the door panel 23 also occurs as shown in FIG.

  As shown in FIG. 4, since the waveform of the output signal of the vibration detection sensor 1 differs depending on the location where the door panel 23 is struck, it is possible to detect the location where the door panel 23 is struck. That is, the user can give different operation instructions depending on where the door panel 23 is struck. If the region 8 shown in FIG. 1 is the first region having high rigidity and the region 9 is the second region having low rigidity, the knock operation is performed on any of the first region 8 and the second region 9. Different operation instructions can be given depending on whether or not (tapping operation) has been performed. For example, the sliding door 22 can be opened by knocking to the first region 8, and the sliding door 22 can be closed by knocking to the second region 9. FIG. 5 is a block diagram schematically showing the configuration of a vehicle door opening / closing device that can detect and determine such a hitting position of the door panel 23.

  As shown in FIG. 5, the operation determination unit 2 of the vehicle door opening and closing apparatus of the present invention includes a filter unit 3, a hitting characteristic determination unit 4, a resonance determination unit 5, and a hitting operation determination unit 6. Has been. The determination result of the operation determination unit 2 is transmitted to the door ECU 20, and the door ECU 20 drives and controls the actuator 40 such as a motor based on the determination result to open and close the slide door 22.

  The filter unit 3 is a functional unit that extracts a signal in a predetermined frequency band from the sensor output signal of the vibration detection sensor 1. The hit characteristic determination unit 4 is a functional unit that determines whether the vibration generated in the door panel 23 is due to the hit operation based on whether the sensor output signal that has passed through the filter unit 3 has a hit characteristic. is there. The resonance determination unit 5 is a functional unit that determines the presence / absence of resonance vibration generated in the door panel 23 in response to a hitting operation on the door panel 23 based on a sensor output signal that has passed through the filter unit 3. Based on the determination results of the hit characteristic determination unit 4 and the resonance determination unit 5, the hit operation determination unit 6 determines whether or not the door panel 23 (sliding door 22) has been hit and where the door panel 23 has been hit. It is a function part to determine.

  The filter unit 3 includes a first filter 31 that passes a sensor output signal in a first frequency band corresponding to a frequency of vibration generated by the tapping operation, and a sensor output signal in a second frequency band that is lower than the frequency band of the first filter 31. And a second filter 32 that passes the filter. In the present embodiment, a third filter 33 that passes a sensor output signal in a third frequency band lower than the frequency band of the second filter 32 is further provided.

The first filter 31 of the filter unit 3 is, for example, a high pass filter. The second filter 32 is a high-pass filter or a band-pass filter whose frequency band is lower than that of the first filter 31. Alternatively, the second filter 32 may be a low pass filter corresponding to a frequency band lower than the frequency band of the first filter 31. The third filter 33 may be a bandpass filter having a frequency band lower than that of the second filter 32 or a low-pass filter corresponding to a frequency band lower than that of the second filter 32.

  The first filter 31 generates a damped vibration waveform in which a frequency band lower than a predetermined frequency in the vibration waveform is attenuated. The vibration waveform may include a low-frequency component such as a resonance component of the door panel 23, but the first filter 31 generates a damped vibration waveform that attenuates the low-frequency vibration (see FIG. 4A). . When the second filter 32 is a high-pass filter or a band-pass filter, similarly to the first filter 31, a damped vibration waveform in which low-frequency vibration is attenuated is generated (see the left side of FIG. 4B). When the second filter 32 is a low-pass filter, a damped vibration waveform including a low-frequency component such as a resonance component of the door panel 23 and excluding a high-frequency vibration component that passes through the first filter 31 is generated ( (Refer FIG.4 (b)). The third filter 33 includes a low frequency component such as a resonance component of the door panel 23, and generates a damped vibration waveform from which a vibration component in a frequency band that passes through the second filter 32 is removed (FIG. 4B). See right).

  The tapping feature determination unit 4 has a tapping feature in the sensor output signal that has passed through the first filter 31 (FIG. 4A) and the sensor output signal that has passed through the second filter 32 (left side in FIG. 4B). It is determined whether or not. The hit characteristic is a characteristic indicating that a knock operation has been performed by the user. In the present embodiment, the hitting feature determination unit 4 has two functional units, a first hitting feature determination unit 41 and a second hitting feature determination unit 42. The first hit characteristic determination unit 41 determines whether or not the sensor output signal (damped vibration waveform) that has passed through the first filter 31 has a hit characteristic. The second hit characteristic determination unit 42 determines whether or not the sensor output signal (damped vibration waveform) that has passed through the second filter 32 has a hit characteristic. Since the determination principle of the first hit feature determination unit 41 and the second hit feature determination unit 42 is the same, the following description will be given collectively as the hit feature determination unit 4.

  As shown in FIG. 6, the hit characteristic determination unit 4 acquires an envelope W from the damped vibration waveform, and determines the presence or absence of the hit characteristic based on the envelope W. By acquiring the envelope W, noise such as engine vibration due to idling, vibration due to the sound of in-vehicle audio, and vibration due to rain can be removed. Although the envelope W is formed by connecting the peaks of the damped vibration waveform in FIG. 6, the envelope may be acquired by connecting the valleys of the damped vibration waveform. Alternatively, the damped oscillation waveform may be full-wave rectified to the positive side or the negative side of the voltage, and an envelope may be obtained by connecting peaks or valleys of the waveform after full-wave rectification. In the waveform after full-wave rectification, the interval between peaks and peaks or valleys and valleys is narrower than the waveform before full-wave rectification, so that the envelope can be acquired with higher accuracy.

Tapping feature judging unit 4, the envelope W is increased as the time T _1, the predetermined tooth from the peak value P envelope W is up to the peak value P from the predetermined threshold value V _t as shown in FIG. 6 Based on the decay time T ₂ that decays to the threshold value V _t , the presence / absence of a hit feature is determined. That is, when the slope of the envelope is a specific slope, it is determined that there is a hit characteristic.

In the present embodiment, the threshold voltage (threshold value V _t ) is 1/10 of the peak voltage (peak value P) of the envelope W. Threshold V _t can be arbitrarily set. Further, the standard threshold value V _t may be set from a standard peak value P such as an average value without setting the threshold value V _t for each envelope W. The rise time (increase time T ₁ ) from when the envelope W exceeds the threshold value V _t to the peak value P is preferably within a few ms (eg, within 3 to 5 ms). Further, it is preferable that the decay time T ₂ that attenuates from the peak value P to the predetermined threshold value V _t is within 150 ms. Decay time T ₂ are the size of the sliding door 22 vary with the mounting position, the material of the door panel 23 and the like.

  The resonance determination unit 5 determines the presence or absence of resonance vibration as shown on the right side of FIG. That is, the resonance determination unit 5 determines whether the sensor output signal that has passed through the third filter 33 includes a vibration waveform having a predetermined amplitude and a predetermined frequency. For example, when the second filter 32 is configured by a low-pass filter, the filter unit 3 may be configured without the third filter 33. In this case, the resonance determination unit 5 may determine the presence or absence of resonance vibration based on the sensor output signal that has passed through the second filter 32. That is, it is determined whether or not the sensor output signal that has passed through the second filter includes a vibration waveform having a predetermined amplitude and a predetermined frequency.

  The hitting operation determination unit 6 determines the presence / absence of a hitting operation and the location where the door panel 23 was hit based on the determination results of the first hitting feature determination unit 41, the second hitting feature determination unit 42, and the resonance determination unit 5. . For example, the following determination is performed.

(Judgment example 1)
The hitting operation determination unit 6 determines that there is a hitting operation when the first hitting feature determination unit 41 or the second hitting feature determination unit 42 determines that there is a hitting feature. At this time, when it is determined that only the first hit feature determination unit 41 has the hit feature, it is determined that the hit operation has been applied to the highly rigid region, that is, the first region 8. On the other hand, when it is determined that only the second hit feature determination unit 42 has a hit feature, it is determined that a hit operation has been applied to the low-rigidity region, that is, the second region 9. If both the first hit feature determination unit 41 and the second hit feature determination unit 42 determine that there is a hit feature, either the first region 8 or the second region 9 is determined according to a predetermined priority order. It is determined that a tapping operation has been applied to. Alternatively, it may be determined that a hitting operation has not been applied. In the determination example 1, the presence / absence of the hitting operation and the position where the hitting operation is applied are determined without using the resonance determining unit 5. Therefore, when the determination as in the determination example 1 is performed, the operation determination unit 2 may be configured without including the resonance determination unit 5.

(Judgment example 2)
The hitting operation determination unit 6 determines that there is a hitting feature only in the first hitting feature determination unit 41, and if the resonance determination unit 5 determines that there is no resonance vibration, a portion with high rigidity of the door panel 23 is knocked. It is determined that When it is determined that only the second hit feature determination unit 42 has a hit feature and the resonance determination unit 5 determines that there is resonance vibration, it is determined that a portion of the door panel 23 having low rigidity has been knocked. When both the first hit feature determination unit 41 and the second hit feature determination unit 42 determine that there is a hit feature, the priority order may be determined in the same manner as in the determination example 1, and the hit operation may be performed. You may make it determine with having not been added. In the determination example 2, the resonance determination unit 5 is also used to determine the presence / absence of a hitting operation and the position where the hitting operation is applied.

(Judgment example 3)
The above determination condition is an example, and various other conditions can be set. For example, when it is determined that only the second hit feature determination unit 42 has a hit feature and the resonance determination unit 5 determines that there is no resonance vibration, it can be determined that no operation instruction has been issued. Such determination is preferable in order to eliminate erroneous determination and perform accurate determination. However, under the same conditions, it can also be determined that a portion with low rigidity of the door panel 23 has been knocked. Although not strong enough to cause resonance, a case where a hitting operation is applied is assumed. It is preferable that conditions are appropriately determined according to the mounting method and structure of the slide door 22 of the vehicle, the material of the door panel 23, and the like.

[Other Embodiments]
(1)
As mentioned above, although the case where this invention was applied to the sliding door of a vehicle was demonstrated as an example, naturally this invention is not limited to a sliding door. As shown in FIG. 7, the present invention can also be applied to the back door 25. In the example shown in FIG. 7, the vibration detection sensor 1 is arranged near the back side of the emblem 26, and the regions on both sides of the emblem 26 are the first regions 8 having high rigidity. And the lower part of the back door 25 is the 2nd area | region 9 with low rigidity.

(2)
As mentioned above, although the case where this invention was applied to vehicle doors, such as a slide door and a back door, was demonstrated as an example, naturally this invention is not limited to a vehicle door. The present invention can also be applied to other opening / closing bodies in a vehicle such as a vehicle power window and a roof window.

(3)
Further, the scope of application of the present invention is not limited to a vehicle opening / closing body. It can also be applied to automatic doors in houses and offices.

(4)
Moreover, the structure of the operation determination part 2 is not limited to the structure mentioned above based on FIG. FIG. 8 is a block diagram schematically showing another configuration example of the vehicle door opening and closing device. This configuration differs from the configuration shown in FIG. 5 in that the pre-determination means 7 is provided. The pre-determination unit 7 includes a pre-determination unit 71 and a switch 72. The switch 72 is provided between the vibration detection sensor 1 and the filter unit 3, and is configured by an analog switch as an example.

  The switch 72 is controlled by the pre-determination unit 71. When the pre-determination unit 71 controls the switch 72 to be in the on state, the output of the vibration detection sensor 1 is input to the filter unit 3. When the pre-determination unit 71 controls the switch 72 to be in an off state, the output of the vibration detection sensor 1 is not input to the filter unit 3. When the output of the vibration detection sensor 1 is not input to the filter unit 3, the hitting feature determination unit 4 and the resonance determination unit 5 determine that there is no hitting feature or resonance. It is determined that there is no operation.

  The pre-determination unit 71 receives the output of the vibration detection sensor 1 and determines whether or not the output of the vibration detection sensor 1 has a characteristic that seems to be a hitting characteristic. Here, the feature that seems to be a hit feature is a feature that is determined based on a criterion that is looser than a criterion that is determined by the hit feature determination unit 4. For example, it is a feature that the output signal of the vibration detection sensor 1 is oscillating with a predetermined amplitude or more, or is oscillating at a frequency in a predetermined frequency band wider than the frequency band of the filter unit 3.

  When the output signal of the vibration detection sensor 1 does not vibrate with a predetermined amplitude, there is a low possibility of having a hitting characteristic as shown in FIG. Accordingly, the pre-determination unit 71 determines that “there is no characteristic that seems to be a hit characteristic”. Further, even when the output signal of the vibration detection sensor 1 vibrates with a predetermined amplitude or more, when it does not vibrate in a predetermined frequency band wider than the frequency band of the filter unit 3, “ It is determined that there is no feature that seems to be a hit feature. In such a case, the signal is cut in the filter unit 3, and the subsequent hitting feature determination unit 4 and the resonance determination unit 5 also determine that there is no hitting feature or resonance. .

  Thus, by providing the pre-determination means 7, it becomes possible to omit useless signal processing and to obtain the determination result earlier. In addition, since unnecessary signal processing can be omitted, the calculation load can be reduced, which contributes to energy saving. In the above description, the case where the switch 72 is controlled by the determination result of the pre-determination unit 71 is illustrated, but the determination result of the pre-determination unit 71 is directly received by the hitting operation determination unit 6 and “no hitting operation is performed”. May be determined.

  As described above, according to the present invention, there is provided an opening / closing body control device capable of well detecting an artificial hitting operation by a user when opening / closing an opening / closing body together with a place where the hitting operation is applied. Can be provided. In particular, when the present invention is applied to a vehicle door, it is possible to perform an artificial tapping operation by a user when opening and closing the vehicular door without depending on a door handle, together with a place where the tapping operation is added. It is possible to provide a vehicular door opening / closing device capable of being detected.

Side view of a vehicle in which a vehicle door opening and closing device is mounted on a sliding door Explanatory drawing which shows typically the structural example of the door opening / closing apparatus for vehicles III-III sectional view of Drawing 2 showing an example of an installation form of a vibration detection sensor Waveform diagram schematically showing difference in vibration waveform due to difference in rigidity of door panel Block diagram schematically showing a configuration example of a vehicle door opening and closing device Explanatory drawing showing the envelope and hit characteristics Rear view of a vehicle in which a vehicle door opening and closing device is mounted on the back door Block diagram schematically showing another configuration example of a vehicle door opening and closing device

1: vibration detection sensor 3: filter unit 4: hitting characteristic determination unit 5: resonance determination unit 6: hitting operation determination unit 22: sliding door (opening / closing body)
23: Door panel 25: Back door (opening / closing body)
31: 1st filter 32: 2nd filter 33: 3rd filter 41: 1st beating characteristic determination part 42: 2nd beating characteristic determination part

Claims (4)

A vibration detection sensor that is installed in the opening / closing body or a structural member around the opening / closing body and detects vibration generated by a hitting operation on the opening / closing body or the structural member by a user;
A filter unit for extracting a signal of a predetermined frequency band corresponding to a plurality of bands from a sensor output signal of the vibration detection sensor;
Whether or not the sensor output signal that has passed through the filter unit has a hit characteristic, a hit characteristic determination unit that determines for each of the plurality of bands,
Based on the determination result of the hitting feature determination unit, a hitting operation determination unit that determines the presence / absence of a hitting operation on the opening / closing body or the structural member and a place where the hitting operation has been added,
Equipped with a,
The opening / closing body control apparatus comprised so that operation content may differ with the places where the said tapping operation was added . A resonance determination unit that determines the presence or absence of resonance vibration generated in the opening / closing body or the structural member in accordance with a hitting operation on the opening / closing body or the structural member, based on the sensor output signal that has passed through the filter unit,
The hit operation determining unit determines whether or not a hit operation has been performed on the opening / closing body or the structural member and a place where the hit operation has been applied based on the determination results of the hit characteristic determining unit and the resonance determining unit. Item 2. The opening / closing body control device according to Item 1. The opening / closing body control apparatus of Claim 1 or 2 which has set the 1st area | region and the 2nd area | region where rigidity is relatively lower than the said 1st area | region as a place where the said tapping operation is added. A vibration detection sensor that is installed in the opening / closing body or a structural member around the opening / closing body and detects vibration generated by a hitting operation on the opening / closing body or the structural member by a user;
A filter unit for extracting a signal of a predetermined frequency band corresponding to a plurality of bands from a sensor output signal of the vibration detection sensor;
Whether or not the sensor output signal that has passed through the filter unit has a hit characteristic, a hit characteristic determination unit that determines for each of the plurality of bands,
Based on the determination result of the hitting feature determination unit, a hitting operation determination unit that determines the presence / absence of a hitting operation on the opening / closing body or the structural member and a place where the hitting operation has been added,
With
A resonance determination unit that determines the presence or absence of resonance vibration generated in the opening / closing body or the structural member in accordance with a hitting operation on the opening / closing body or the structural member, based on the sensor output signal that has passed through the filter unit,
The hitting operation determination unit determines the presence / absence of a hitting operation on the opening / closing body or the structural member based on the determination results of the hitting characteristic determination unit and the resonance determination unit, and a place where the hitting operation is added,
The filter unit is
A first filter that passes the sensor output signal in a first frequency band corresponding to the frequency of vibration generated by the hitting operation;
A second filter that passes the sensor output signal in a second frequency band lower than the first frequency band, and
The hit feature determination unit
A first tapping feature determination unit that determines whether or not the sensor output signal that has passed through the first filter has a tapping feature;
A second tapping feature determination unit that determines whether or not the sensor output signal that has passed through the second filter has a tapping feature;
The resonance determination unit applies the sensor output signal that has passed through the second filter or the sensor output signal that has passed through a third filter that passes the sensor output signal in a third frequency band lower than the second frequency band. Based on the presence or absence of the resonance vibration,
The hitting operation determination unit is
Based on the determination result of the first hit characteristic determination unit, it is determined whether or not a hit operation has been performed on the first region of the opening / closing body or the structural member,
Based on the second hit feature judging unit and the resonance determination of the determination result, the hitting operation with respect to the second region of the closing member or the structural member you determine whether or not made opening and closing member control device.

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