KR102413957B1 - Vehicle door emergency door opening device - Google Patents

Abstract

An emergency door opening device for the vehicle door is provided. In case of emergency, when the body or bag or belongings of a passenger disembarking through the door of the vehicle get caught in the door of the vehicle being closed, the emergency door device for the vehicle door is designed for the passenger who is caught in the door or the passenger in the vehicle or from the outside of the vehicle. A shock sensing unit that detects an impact transmitted from a person, a reading unit that reads whether the signal transmitted from the shock sensing unit is normal, and a signal transmitted from the reading unit control the door opening and closing device of the vehicle to close or close the vehicle It includes an opening contact that allows the door to be opened immediately.

Description

Vehicle door emergency door opening device {Vehicle door emergency door opening device}

The present invention relates to an emergency door opening device for a vehicle door, and more particularly, when an emergency situation occurs in which the body of a passenger disembarking through the vehicle door, or a bag or personal belongings, etc. gets caught in the closed vehicle door, the door is immediately opened, It relates to an emergency door opening device for a vehicle door capable of inducing safe disembarkation of passengers by preventing the departure of a vehicle.

In general, in vehicles of public transportation (buses, subways, trains, etc.), the doors for getting on and off passengers may be opened and closed by the operation of the driver.

However, due to the driver's dangerous driving habits, other than the reason that the driver of a vehicle operating on a specific route is being chased by the operating time, the driver closes the door hastily and gets off the passenger's body through the door of the vehicle or the bag or personal belongings of the passenger in the process of leaving the door. Interstitial problems often arise.

At this time, when the driver of the vehicle starts the vehicle without recognizing that the passenger's body or bag or belongings are caught between the doors, the passenger disembarking through the door of the vehicle is caught in the door, etc. There is a problem that safety accidents occur.

On the other hand, in general, it is common for the entrance door of a route vehicle to have a special boarding door and a disembarkation door disposed in the middle door for the reason of smooth charge receipt and confirmation. A sliding door that opens and closes by moving along a rail is applied to the entry door of a high-rise vehicle, and a folding door that opens and closes inward is applied. In addition, in the case of a low-floor vehicle, a gliding door in which two pairs of doors rotate inward to open, and the boarding door and the alighting door are equally applied.

In order to prevent the above problem of jamming accidents in advance, the door of most vehicles is equipped with a safety sensor that detects the presence or absence of passengers getting on and off. The safety sensor is usually a photoelectric sensor using an infrared wavelength, which is composed of a light transmitting part and a light receiving part through which infrared rays are transmitted. Safety accidents could be prevented with functions such as preventing the door from closing or the accelerator pedal from being operated to prevent the vehicle from starting.

However, when soil, snow, water, or foreign substances are accumulated or buried on the surface of the photoelectric sensor, or when thin cloth or light-transmitting portable items are caught in the door, there is a problem in that the state cannot be accurately detected.

On the other hand, safety sensors of some vehicles do not detect objects smaller than 6 cm, so there is a limit in preventing a complete jamming accident.

In order to solve the above problems, a vehicle emergency situation awareness alarm device has been registered in Korean Patent Publication No. 10-1083948. This prior art is provided on the sidewall of the vehicle's opening and closing door to detect an impact applied from the outside of the vehicle, and an alarm provided inside the vehicle so that the driver can recognize the impact applied from the outside of the vehicle. and an alarm signal generating member for generating a signal, and a control unit for controlling the alarm signal generating member to generate an alarm signal in response to a signal output from the impact sensing member, wherein the impact sensing member is the vehicle's It consists of an air tube provided on the side wall of the opening and closing door, and a pressure sensor that detects a change in air pressure in a state of being charged inside the air tube by an impact applied from the outside of the air tube.

The prior art is a detection means using a change in the amount of negative pressure and air pressure generated by a physical shock, and the shock caused by foreign substances such as stones generated while the vehicle is driving or the shock transmitted from the driving road and the sensor malfunction according to the external temperature. There is a problem that causes this.

In addition, since the passenger applies an impact to the sensor unit and the driver recognizes the alarm and then opens the door, there is a problem in that there is a limit to the implementation of prompt safety measures.

Republic of Korea Patent Publication No. 10-1083948

The problem to be solved by the present invention is to solve an emergency situation in which the body of a passenger getting off through the door of the vehicle, bags or personal belongings, etc. are caught in the door of the closed vehicle, the passenger who is caught in the door or the passenger in the vehicle or the outside of the vehicle In providing an emergency opening device for vehicle doors that closes or immediately opens the door of a closed vehicle in response to a passenger's emergency door request when another person hits or touches the shock sensor installed in the vehicle, and prevents the vehicle from departing. .

In addition, it is to provide an emergency door opening device for a vehicle that generates an alarm at the same time as the emergency door opening due to the above situation.

Another object of the present invention is to provide an emergency door opening device for a vehicle capable of reading vibrations generated during vehicle operation and vibrations in response to a door emergency opening request.

In addition, the problems of the present invention are not limited to the above-mentioned problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The emergency door opening device for a vehicle door according to an embodiment of the present invention for solving the above problem is a passenger who is caught in the door when an emergency situation occurs in which the body of a passenger who gets off the vehicle or a bag or belongings is caught in the door of a closed vehicle Alternatively, a shock sensing unit for detecting an impact transmitted from a passenger in the vehicle or from another person outside the vehicle, a reading unit for reading whether the signal transmitted from the shock sensing unit is normal, and a signal transmitted from the reading unit By controlling the door opening/closing device of the vehicle, it includes an opening contact unit that closes or immediately opens the door of the closed vehicle.

The impact sensing unit, when the body or bag or belongings of a passenger who alights through the door of the vehicle are caught in the door of the vehicle to be closed, a passenger who is caught in the door or a passenger in the vehicle or another person from the outside of the vehicle and a contact sensor for immediately opening the door of a closed or closed vehicle by generating a signal by may include

It may further include a piezoelectric sensor built into the contact member.

The impact sensing unit, when the body, bag, or personal belongings of a passenger who alights through the door of the vehicle are caught in the door of the closing vehicle, a passenger who is caught in the door or a passenger in the vehicle or another person from the outside of the vehicle and a pressure sensor for immediately opening a closed or closed vehicle door by generating a signal, wherein the pressure sensor may include a piezoelectric film and an attachment member for accommodating the piezoelectric film.

The piezoelectric film may include a plurality of pressure sensing cells, and the pressure sensing cells may be disposed to be spaced apart from each other.

The attachment member may be formed of a substrate or a film.

The attachment member may further include a lighting member.

The impact detection unit may further include a contact detection unit that detects whether a passenger has touched for emergency opening of the door of the vehicle, and generates a contact detection signal accordingly.

The shock sensing unit may further include a pressure detecting unit that detects whether a passenger presses for an emergency door opening of the vehicle, and generates a pressure sensing signal by formalizing and detecting an electric signal of vibration according to the detection unit.

It may further include a waterproof member surrounding the impact sensing unit.

The reading unit may read an analysis algorithm program according to the amplitude of the vibration transmitted from the shock sensing unit and the width of the waveform.

It may further include an alarm generating unit for generating an alarm by reading the reading unit before or after the opening contact unit operates.

According to the emergency door opening device for a vehicle door according to an embodiment of the present invention, when an emergency situation occurs in which the body of a passenger getting off the vehicle door, or a bag or portable item is caught in the door of the vehicle being closed, the passenger or vehicle caught in the door Safety by making the door of the vehicle closed or immediately opened in response to the passenger's emergency door request as a result of hitting or contacting the shock sensor installed in the vehicle by a passenger or other person from outside the vehicle, and preventing the vehicle from departing Accidents and personal injury can be prevented in advance.

In addition, by generating an alarm at the same time as the emergency opening of the door due to the above situation, the driver of the vehicle can recognize and respond to the emergency situation more quickly.

In addition, it is possible to prevent a malfunction of the emergency door opening by reading vibrations generated during the operation of the vehicle and vibrations according to the emergency door opening request.

1 is a block diagram of an emergency door opening device for a vehicle door according to an embodiment of the present invention.
2 is a view showing a contact sensor of an impact sensing unit according to an embodiment of the present invention.
3 is a view showing a pressure sensor of an impact sensing unit according to an embodiment of the present invention.
4 is a view showing another embodiment of the pressure sensor of the impact sensor according to an embodiment of the present invention.
5 is a view showing another embodiment of the contact sensor of the impact sensing unit according to an embodiment of the present invention.
6 to 9 are views illustrating an installation state of an emergency door opening device for a vehicle door according to an embodiment of the present invention.
10 to 15 are views illustrating various embodiments according to a signal transmitted from a pressure sensor of an emergency door opening device for a vehicle door according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, specific embodiments will be described with reference to the accompanying drawings.

1 is a block diagram of an emergency door opening device for a vehicle door according to an embodiment of the present invention, FIG. 2 is a view showing a contact sensor of an impact sensor according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention It is a view showing a pressure sensor of the shock sensing unit according to an example, and FIG. 4 is a view showing another embodiment of the pressure sensor of the shock sensing unit according to an embodiment of the present invention, and FIG. 5 is an impact according to an embodiment of the present invention. It is a view showing another embodiment of the touch sensor of the sensing unit.

Referring to FIG. 1 , the emergency door opening device 100 for a vehicle door according to an exemplary embodiment includes the body of a passenger disembarking through the door of the vehicle, or when an emergency situation occurs in which a bag or portable item is caught in the closing vehicle door BD. , a passenger who is caught in the door or a passenger in the vehicle, or another person from the outside of the vehicle hitting or touching the shock sensing unit installed in the vehicle. As such, it may include an impact sensing unit 110 , a reading unit 120 , and an open contact unit 130 .

Referring to FIG. 2 , in some embodiments, the impact sensing unit 110 is a passenger who is caught in the door when the body of a passenger disembarking through the door of the vehicle or a bag or portable item is caught in the door BD of the closed vehicle. Alternatively, it may include a contact sensor 111 that generates a signal by contact with a passenger in the vehicle or another person outside the vehicle. The contact sensor 111 may include a contact member 111a and a lighting member 111b.

The contact member 111a may be a sensor that senses a hit or contact of the passenger. The contact member 111a may use an ohmic contact sensor or a capacitive contact sensor configured with two or more axes. The ohmic contact sensor may be a Mems Sensor Element whose combined resistance changes according to a certain intensity of pressing when a passenger touches the sensor. It may be a Mems Sensor Element with a changing nature. In some embodiments, the capacitive touch sensor may be implemented in a capacitive manner, such as a self-capacitance method or a mutual capacitance method. When the capacitive touch sensor is implemented in a self-capacitance method, only touch driving electrodes are included, whereas when implemented in a mutual capacitive method, the capacitive touch sensor may include touch driving electrodes and touch sensing electrodes.

The contact sensor 111 may be formed in the form of a panel or a film, and may be attached to the inside/outside of the vehicle on both sides of the door BD or the door BD through an adhesive member. The adhesive member may be a transparent adhesive film (OCA) or a transparent adhesive resin (OCR), but is not limited thereto.

In some embodiments, the lighting member 111b may be lighting that is turned on by a signal generated from the contact member 111a. The lighting member 111b may be configured to surround the contact member 111a. However, the present invention is not limited thereto, and the lighting member 111b may be electrically connected to the contact member 111a and disposed to be spaced apart from the contact member 111a.

In some embodiments, the lighting member 111b may include a frame and a light emitting device mounted on the frame. The light emitting device includes an organic light emitting device including an organic light emitting diode, a micro light emitting diode device including a micro LED, and a quantum dot light emitting diode including a quantum dot light emitting diode The device may be an organic EL device including an organic EL device and an organic EL device, or an inorganic electroluminescent device including an inorganic EL (Inorganic Electro-Luminescence) device.

In some embodiments, the lighting member 111b may be implemented flexibly. For this purpose, it may be made of a flexible frame. For example, the frame of the lighting member 111b may include polyethersulphone (PES), polyacrylate (PA), polyarylate (PAR), polyetherimide (PEI), polyethylene or phthalate (polyethylene napthalate: PEN), polyethylene terephthalate (PET), polyphenylenesulfide (PPS), polyallylate, polyimide (PI), polycarbonate (PC) , cellulose triacetate (CAT), cellulose acetate propionate (CAP), or a combination thereof.

The impact detection unit 110 may further include a contact detection unit that detects whether a passenger has touched an emergency door of the vehicle and generates a contact detection signal accordingly. The touch detection unit may transmit the generated touch detection signal to the reading unit 120 .

Referring to FIGS. 3 and 4 , in some embodiments, the impact sensing unit 110 is the body of a passenger who alights through the door of the vehicle, or when a bag or portable item is caught in the door BD of the closed vehicle, It may include a pressure sensor 112 in which a signal is generated by a hit of a passenger who is caught in the passenger or a passenger in the vehicle or another person from the outside of the vehicle. The pressure sensor 112 may include a piezoelectric film 112a and an attachment member 112b. In some embodiments, the attachment member 112b serves as a frame of the impact sensing unit 110, and may include an adhesive layer on one side. In some embodiments, the attachment member 112b may be formed in the form of a substrate or a film, and may be implemented flexibly. For example, the attachment member 112b may include polyethersulphone (PES), polyacrylate (PA), polyarylate (PAR), polyetherimide (PEI), polyethylene naphthalate ( polyethylene napthalate: PEN), polyethylene terepthalate (PET), polyphenylenesulfide (PPS), polyallylate, polyimide (PI), polycarbonate (PC), sulfol Los triacetate (cellulosetriacetate: CAT), cellulose acetate propionate (CAP), or a combination thereof may be formed.

In some embodiments, the piezoelectric film 112a may include a plurality of pressure sensing cells CE, and may sense external pressure through the plurality of pressure sensing cells CE. The plurality of pressure sensing cells CE may be disposed to be spaced apart from each other.

In some embodiments, the attachment member 112b may further include a lighting member. The lighting member may include a light emitting device disposed on the other side of the attachment member 112b. Since the configuration of the light emitting device is the same as that described above, a redundant description thereof will be omitted.

The piezoelectric film 112a may be formed on both sides in the long-axis direction (X-axis direction) of the attachment member 112b or on both sides in the short-axis direction (Y-axis direction) of the attachment member 112b. The piezoelectric film 112a may be formed on both sides in the long-axis direction (X-axis direction) and the short-axis direction (Y-axis direction) of the attachment member 112b, but is not limited thereto.

Since the piezoelectric film 112a is flexible, it can respond more easily to an abnormal shock signal than a disk-shaped piezoelectric element.

In some embodiments, the piezoelectric film 112a may be a device using a piezoelectric effect that changes into a voltage according to stress, and is proportional to the intensity of vibration applied to the pressure sensor 112 to output an electrical signal. can

'Piezo' of the piezoelectric power comes from 'Piezein', which means 'to press' in Greek, and when physical pressure is applied to the crystal, electric potential is generated between both sides of the crystal and electricity is generated. It has the property to occur.

The impact sensor 110 may be attached to the outside of the vehicle on both sides of the door BD or the door BD of the vehicle, or may be attached to the inside of the vehicle close to the door BD. In some embodiments, when the shock sensing unit 110 is attached to the outside of the vehicle, a waterproof member surrounding the shock sensing unit 110 may be disposed. The waterproof member prevents moisture or dust from penetrating into the impact sensing unit 110 , and may be formed of a plurality of layers. For example, the waterproof member may include a base film and an adhesive film disposed on one surface of the base film. The base film may be made of polyethyleneterepthalate (PET), polyethyleneterepthalate (PET), a cushion layer, or polyethylene foam (PE-foam), and the adhesive film is a pressure sensitive adhesive (PSA). can be done

The shock detection unit 110 may further include a pressure detection unit that detects whether or not a passenger presses the vehicle for emergency opening of the door, and generates a pressure detection signal by formalizing and detecting an electric signal of vibration according to the result. The pressure detection unit may transmit the generated pressure detection signal to the reading unit 120 .

The reading unit 120 may read the pressure detection signal received from the pressure detection unit. For example, the reading unit 120 is a microprocessor (Micom) equipped with an analysis algorithm program according to the waveform of vibration, and through this, it reads an abnormal signal and a normal signal (a door emergency opening request signal), and , when it is a normal signal, it is possible to generate an emergency opening signal for the door (BD) and transmit it to the opening contact unit 130 .

The analysis algorithm program according to the vibration waveform can analyze the normal signal and the non-stationary signal by analyzing the amplitude level of the signal, the width of the waveform, the continuity of the vibration, the type of excitation, and the like. The analysis algorithm program according to the vibration waveform will be looked at in more detail later.

The opening contact unit 130 may receive an emergency door open signal from the reading unit 120 and control the door opening/closing device of the vehicle. For example, when receiving the emergency door open signal from the reading unit 120 , the opening contact unit 130 may cause the door BD of a closed or closed vehicle to be opened immediately. The door opening and closing device of the vehicle may be a conventional device for opening and closing the current vehicle door.

In addition, the open contact unit 130 may further include an alarm generating unit 140 for generating an alarm by reading the reading unit 120 before or after the operation. In some embodiments, the lighting member may be operated simultaneously with the alarm of the alarm generating unit 140 to flicker the emergency lighting.

Referring to FIG. 5 , in some embodiments, a piezoelectric sensor 111a' may be built in the contact member 111a. In this case, the passenger's touch and pressure may be respectively sensed.

Next, the installation and operation process of the emergency door opening device 100 for the vehicle door configured as described above will be described.

First, referring to FIGS. 6 to 9 , the shock sensing unit 110 is installed outside the vehicle on both sides of the vehicle door BD or/and inside the vehicle door BD and the vehicle door BD close to the vehicle door. can That is, FIGS. 6 and 7 show that the impact sensing unit 110 is formed smaller than a certain size and attached and fixed to the outside of the vehicle and the door BD of the vehicle on both sides of the vehicle door BD in a checkerboard arrangement, and FIG. 8 9 and 9 show a case in which the impact sensing unit 110 is formed in a predetermined size and attached and fixed to the outside of the vehicle on both sides of the vehicle door BD and to the vehicle door BD. At this time, the reading unit 120 connected to the shock sensing unit 110, the open contact unit 130 connected to the reading unit 120, and the alarm generating unit 140 connected to the reading unit 120 are modularized. The installation of the emergency door opening device 100 for the vehicle door can be completed by mounting it inside the vehicle. Here, the opening contact part 130 may be connected to an existing door opening and closing device of a vehicle. In some embodiments, the emergency door opening device 100 may include a plurality of lighting members. For example, in some embodiments, the lighting member surrounds the outside of the impact sensing unit 110, or a lighting member may be disposed on the frame of the impact sensing unit 110, and in some embodiments, the lighting member is an impact sensing unit It may be spaced apart from the unit 110 and located on the driver's dashboard.

When a passenger in the vehicle wants to get off through the vehicle door while the vehicle in which the vehicle door emergency door device 100 is installed is operating, the driver of the vehicle opens the vehicle door BD while the vehicle is stopped. You can get off the vehicle through the door. An emergency situation in which the body of a passenger who alights through the door BD, or a bag or personal belongings, etc., gets caught in the door BD by closing the door BD by the driver of the vehicle in a state in which the passenger alighting through the door BD has not completed a complete disembarkation This can happen.

At this time, a passenger caught in the door of the vehicle touches the contact sensor 111 of the impact sensor 110 installed outside the vehicle on both sides of the door BD and the door BD of the vehicle or presses the pressure sensor 112 . can do. Here, the passenger in the vehicle may find a passenger caught in the door BD and press the shock sensing unit 110 installed inside the vehicle, and another person may press the shock sensing unit installed outside the vehicle from the outside of the vehicle. (110) may be pressurized. A plurality of the impact sensing unit 110 may be disposed on the outside of the vehicle on both sides of the door BD, the door BD, or inside the vehicle on both sides of the door BD. For example, it may be arranged in various locations that can be touched by a person who requests the emergency opening in case of an emergency with a hand or a portable device.

The touch signal of the touch sensor 111 or the pressure signal of the pressure sensor 112 , that is, a signal generated by the impact sensing unit 110 may be transmitted to the reading unit 120 . When the contact signal of the contact sensor 111 is transmitted to the reading unit 120, the lighting member 111b attached to the contact member 111a is turned on, so that the vehicle driver recognizes that it is an emergency situation, and responds quickly By doing so, accidents can be prevented.

In addition, even when the body of a passenger disembarking through the vehicle door while the vehicle door BD is open or the passenger boarding the vehicle comes into contact with the impact sensor 110, the reading unit 120 detects the impact. The signal transmitted from the unit 110 is read, and the signal transmitted to the impact sensing unit 110 when the door BD of the vehicle is open can be read as a normal signal. Accordingly, the open contact unit 130 is operated according to the reading of the reading unit 120, and the open contact unit 130 controls the door opening and closing device of the vehicle to maintain the door BD of the vehicle in an open state. . On the other hand, in the state in which the door BD of the vehicle is opened, it is in a controlled state so that it does not operate even when the accelerator pedal is pressed for driving. Due to this, it is possible to promote the safety of passengers who get off through the door BD of the vehicle.

In addition, by generating an alarm from the alarm generating unit 140 before or after the open contact unit 130 is operated by reading the reading unit 120 , the vehicle driver can recognize an emergency situation. Accordingly, since the vehicle driver can quickly respond to an emergency situation, it is possible to prevent a safety accident in advance. The alarm generation time may be preferably 3 to 5 seconds.

In addition, the time for the opening contact unit 130 to control the door opening and closing device of the vehicle to reopen the door BD of the vehicle, that is, a predetermined time during which the opening contact unit 130 operates (for example, 3 to 7). sec), the connection with the door opening/closing device of the vehicle is released from the opening contact unit 130, and the alarm generated by the alarm generating unit 140 is stopped at the same time, and the door BD of the vehicle is closed with the vehicle door opening/closing device. can be operated normally. Here, the control time of the door opening/closing device of the vehicle by the opening contact unit 130 may be adjusted according to the conditions of the vehicle.

In addition, when the door BD of the vehicle is normally closed, a vibration of closing the door is generated, and this vibration is sensed by the shock sensing unit 110 . However, in this case, it can be prevented from being read as an emergency door request. It can be read as an abnormal signal by the vibration waveform analysis algorithm program to prevent malfunction. In addition, after the vehicle door is opened, the shock detection time may be delayed for a certain period of time, and this delay time may preferably be less than 2 seconds, and this may also be adjusted.

And, while the vehicle is being driven, the shock sensor 110 detects an impact caused by a blow of a foreign substance such as a stone outside the vehicle or an impact caused by vibration of a moving vehicle, and the detection signal of the impact sensor 110 is read. may be transmitted to the unit 120 . At this time, the reading unit 120 may read the non-normal signal because the vehicle is driving with the door BD closed. In addition, the reading unit 120 can prevent a malfunction by reading a non-normal signal by an analysis algorithm program according to the waveform of the vibration.

In addition, since the closed state of the vehicle's door BD is confirmed and the vehicle is in a running state, after the above-described opening is performed, the delay time (less than 2 seconds) is recognized as a normal signal, and the The vibration may be read and processed as a non-normal signal in the reading unit 120 .

On the other hand, the reading unit 120 can read the normal situation and the non-normal situation by using the analysis algorithm program according to the waveform of the vibration signal transmitted from the pressure sensor 112, which is shown in [Table 1] .

transmitted from the pressure sensor.
signal condition transmitted from the pressure sensor.
the amplitude shape of the signal transmitted from the pressure sensor.
the width of the waveform of the signal Characteristic When starting operation after stopping After a temporary high level
low level lasting 500ms to 1500ms Changed according to vehicle condition or driver's driving habits When the door is closed
(sliding door) Temporarily high level
Occur 500ms to 1000ms After closing, the excitation vibration gradually decays and then disappears When the door is closed
(folding door) Temporarily high level
Occur 700ms to 1000ms After closing, the excitation vibration gradually decays and then disappears When the door is closed
(gliding door) Temporarily high level
Occur 700ms to 1000ms After closing, the excitation vibration gradually decays and then disappears External impact while driving Depends on the subject
instantaneous 250ms to 500ms No aftershock after sharp moment vibration on the road irregular low level
Continuous wave generation 100ms to 200ms Vibration level not high shock by the passenger's hand Temporarily intermediate level
Occur 150ms to 250ms Low excitation after generating a relatively regular waveform Passenger impacts with carry-on Depends on the subject
instantaneous 100ms to 200ms Low aftershock after sharp moment

Different shapes are observed depending on the conditions of the signal transmitted through the pressure sensor 112, and the reading unit 120 can analyze and read the amplitude level of the signal, the width of the waveform, the continuity of vibration, and the type of excitation. have. That is, the vibrations generated from the vehicle have repeatability. This is because the characteristics of the waveform, such as the difference in vibration generated when the door is closed, and the vibration generated when the vehicle is started after stopping, are repeated through an algorithm depending on the type of the door (BD). can be recognized and remembered, and its vibration can be read as an abnormal situation.

In addition, external shocks or vibrations of the driving road during driving of the vehicle can be read as relatively non-normal situations, and after a certain section in which the actual vehicle starts driving and normal driving is performed, the signal transmitted from the pressure sensor The waveform is negligible.

On the other hand, the vibration by the passenger's hand or portable device can be read as a normal signal because the excitation vibration is low after the generation of a standardized waveform, and therefore the reading unit 120 operates the opening contact unit 130 to close or The door (BD) of a closed vehicle can be opened immediately. Since the process after the door BD is opened is the same as the situation described above, the following description may be omitted.

In some embodiments, the analysis algorithm program according to the waveform of the vibration may determine the first condition and the second condition, respectively. Here, the first condition may be in the form of the amplitude of the signal transmitted from the pressure sensor, and the second condition may be the width of the waveform of the signal transmitted from the pressure sensor.

The amplitude of the signal transmitted from the pressure sensor, which is the first condition, may be divided into a first level, a second level, and a third level, and the first level may have a higher amplitude than the second level and the third level. The second level may have a lower amplitude than the first level, and may have a higher amplitude than the third level. The third level may have a lower amplitude than the first level and the second level. (1st level > 2nd level > 3rd level) However, the present invention is not limited thereto. The amplitude of the signal transmitted from the pressure sensor may be divided into more levels than the first to third levels.

The width of the waveform of the signal transmitted to the pressure sensor, which is the second condition, may be within 100 ms to 1500 ms. However, the present invention is not limited thereto.

The pressure detection unit detects whether or not the shock sensing unit 110 is pressurized, and after normalizing and detecting an electrical signal of vibration according to the pressure detection unit 110 , a pressure sensing signal is generated, and the generated pressure sensing signal is transmitted to the reading unit 120 . can

Referring to Table 1 and FIG. 10 , the pressure sensor may be shown when the vehicle is stopped after the vehicle is stopped and when driving is started. Whether the pressure detection signal of the pressure sensor matches each of the first condition and the second condition is read by the reading unit 120, and it can be divided into a non-normal signal and a normal signal. For example, the reading unit 120 changes the amplitude form of the signal, which is the first condition, to a temporarily high level (first level) and then to a low level (third level) with respect to the received pressure sensing signal, and continues, If the width of the waveform, which is condition 2, falls between 500ms and 1500ms, it can be recognized as starting operation after stopping and read as a non-normal signal.

Also, referring to FIG. 11 , the pressure sensor when the sliding door type door BD is closed may be shown. The pressure sensing signal of the pressure sensor may be determined by the reading unit 120 . The reading unit 120 first detects the amplitude form of the signal as the first condition as a temporarily high level (first level) with respect to the received pressure sensing signal, and when the width of the waveform as the second condition corresponds to 500 ms to 1000 ms , it can be recognized as the closing of the door (BD) composed of a sliding door and read as an abnormal signal. Here, the reading unit 120 may read whether the excitation vibration is gradually attenuated and then disappeared as an additional third condition.

Also, referring to FIG. 12 , the pressure sensor when the folder door type door BD is closed may be shown. The pressure sensing signal of the pressure sensor may be read by the reading unit 120 . The reading unit 120 first detects the amplitude form of the signal, which is the first condition, as a temporarily high level (first level) with respect to the received pressure sensing signal, and when the width of the waveform as the second condition corresponds to 700ms to 1000ms, , it can be recognized as the closing of the door (BD) composed of a folding door and read as an abnormal signal. Here, the reading unit 120 may read whether the excitation vibration is gradually attenuated and then extinguished as an additional third condition, and in the case of a gliding door, since it is the same as that of a folding type door, the following description may be omitted.

Also, referring to FIG. 13 , when the vehicle is driven, a pressure sensor due to an impact transmitted from the outside of the vehicle may be illustrated. The pressure sensing signal of the pressure sensor may be read by the reading unit 120 . With respect to the received pressure sensing signal, the reading unit 120 first detects the amplitude form of the signal as the first condition for a short time regardless of the level, and when the width of the waveform as the second condition corresponds to 250ms to 500ms , it can be recognized as an external shock while driving and read as a non-normal signal. Here, the reading unit 120 may read whether there is no excitation vibration as an additional third condition after the vibration occurs for a short moment.

Also, referring to FIG. 14 , when the vehicle is driven, the pressure sensor due to the impact transmitted from the vehicle along the surface of the road may be illustrated. The pressure sensing signal of the pressure sensor may be read by the reading unit 120 . The reading unit 120 continuously detects a low level (third level) continuous wave having an irregular amplitude shape of the signal, which is the first condition, continuously with respect to the received pressure sensing signal, and the width of the waveform, which is the second condition, is 100 ms to 200 ms, it can be recognized as vibration of the driving road and read as an abnormal signal.

Also, referring to FIG. 15 , the pressure sensor due to the impact transmitted by hitting with the hand or portable item of a passenger who alights through the door BD of the vehicle may be shown. The pressure sensing signal of the pressure sensor may be read by the reading unit 120 . The reading unit 120 first detects the amplitude form of the signal as the first condition as a temporary intermediate level (second level) with respect to the received pressure sensing signal, and when the width of the waveform as the second condition corresponds to 150 ms to 250 ms , it can be recognized as an impact by the passenger with his or her hand or personal belongings and read as a normal signal. Here, the reading unit 120 may read whether there is low excitation vibration as an additional third condition after the shaped waveform is generated.

In addition, with respect to the received pressure sensing signal, the reading unit 120 first detects the amplitude form of the signal as the first condition temporarily regardless of the level, and when the width of the waveform as the second condition corresponds to 100ms to 200ms, It can be recognized as an impact by a passenger using a portable device and read as a normal signal. Here, the reading unit 120 may read whether there is a low excitation vibration as an additional third condition after the vibration is instantaneously generated.

In this way, since the reading unit 120 reads the non-normal signal and the normal signal through the analysis algorithm program according to the waveform of the vibration, it is possible to prevent malfunction of opening and closing the door BD according to the passenger's emergency door request. .

On the other hand, the processor of the reading unit may be implemented by loading the analysis algorithm program on a general-purpose microprocessor (Micom), and at the same time, the time lag system, which is the delay time of power ON and OFF, and It will be possible to implement using a digital signal processor (DSP) capable of analyzing waveforms such as amplitude and wavelength in each case as in [Table 1] above.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: emergency door opening device
110: impact detection unit
111: contact sensor
111a: contact member
111a': piezoelectric sensor
111b: lighting member
112: pressure sensor
112a: piezoelectric film
112b: attachment member
120: reading unit
130: open contact part
140: alarm generating unit

Claims (12)

In the event of an emergency situation in which the body or bag or belongings of a passenger disembarking through the door of the vehicle are caught in the door of the vehicle being closed, the impact transmitted from the passenger or the passenger in the vehicle or from outside the vehicle is sensed an impact sensing unit attached to the door of the vehicle or the outside of the vehicle on both sides of the door, or attached to the inside of the vehicle close to the door;
a reading unit for reading whether the signal transmitted from the shock sensing unit is normal; and
and an opening contact unit for controlling the door opening/closing device of the vehicle according to the signal transmitted from the reading unit to immediately open the closed or closed vehicle door;
The shock sensing unit,
A contact sensor that closes or immediately opens the door of the closed vehicle by generating a signal by the contact of a passenger who is caught in the door, a passenger on the vehicle, or another person from the outside of the vehicle,
The contact sensor may include a contact member; and
Including a lighting member that is lit by a signal generated from the contact member,
The contact sensor is formed in the form of a panel or a film and is attached to the door of the vehicle or the inside and outside of the vehicle on both sides of the door through an adhesive member,
The lighting member is
An emergency opening device for a vehicle door that surrounds the outside of the shock sensing unit or is installed on a dashboard.
delete The emergency door device of claim 1, further comprising a piezoelectric sensor built into the contact member.
delete delete delete delete The device of claim 1 , wherein the shock detection unit further comprises a contact detection unit configured to detect whether a passenger has touched an emergency door of the vehicle and generate a contact detection signal accordingly.
delete [Claim 9] The emergency door device according to any one of claims 1, 3, and 8, further comprising a waterproof member surrounding the impact sensing unit.
According to claim 1, wherein the reading unit,
A vehicle door emergency opening device that reads out an analysis algorithm program according to the amplitude shape and the waveform width of the vibration transmitted from the shock sensing unit.
The emergency door device of claim 1, further comprising an alarm generating unit that generates an alarm by reading the reading unit before or after the opening contact unit operates.

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