CN220645621U - Anti-pinch device for vehicle door and vehicle - Google Patents

Abstract

The utility model discloses a door anti-pinch device and a vehicle, wherein the door anti-pinch device comprises: the first pressure sensor is arranged on the inner side of the joint of the vehicle door and the side wall so as to detect first pressure of the joint of the vehicle door and the side wall, which is close to the position in the vehicle; the second pressure sensor is arranged on the outer side of the joint of the vehicle door and the side wall so as to detect second pressure of the joint of the vehicle door and the side wall, which is close to the position outside the vehicle; the distance sensor is arranged on the outer side of the vehicle door to detect the distance between the vehicle door and the side wall; and the controller is respectively connected with the first pressure sensor, the second pressure sensor and the distance sensor so as to control the opening and closing of the vehicle door according to the first pressure, the second pressure and the distance between the vehicle door and the side wall. According to the utility model, accurate detection of foreign matters can be realized, the door closing safety is effectively improved, the problem of clamping the door is avoided, and the vehicle use experience of a user is improved; the anti-pinch device for the vehicle has the advantages of simple structure, less change on the structure of the vehicle, lower cost and wide application range.

Description

Anti-pinch device for vehicle door and vehicle

Technical Field

The utility model relates to the technical field of vehicle accessories, in particular to a vehicle door anti-clamping device and a vehicle.

Background

With the improvement of the living standard of people in China, the purchase amount of the high-end vehicle type is larger and larger, the self-priming function of the high-end vehicle type door is widely popularized in pursuing high-grade feeling and convenience, and meanwhile, the self-priming door clamping accidents frequently occur in the market, so that the potential safety hazard is greatly caused, and the customer satisfaction degree is reduced.

Disclosure of Invention

The utility model aims at least solving the technical problem that the self-priming vehicle door in the prior art is easy to cause a clamping accident.

In order to solve the technical problem, an aspect of the present utility model provides a door anti-pinch device, including: the first pressure sensor is arranged on the inner side of the joint of the vehicle door and the side wall so as to detect first pressure of the joint of the vehicle door and the side wall, which is close to the position in the vehicle; the second pressure sensor is arranged on the outer side of the joint of the vehicle door and the side wall so as to detect second pressure of the joint of the vehicle door and the side wall, which is close to the position outside the vehicle; a distance sensor installed at the outer side of the door to detect the distance between the door and the side wall; and the controller is respectively connected with the first pressure sensor, the second pressure sensor and the distance sensor so as to control the opening and closing of the vehicle door according to the first pressure, the second pressure and the distance between the vehicle door and the side wall.

In some embodiments, the door is connected with the side wall through a hinge structure, the hinge structure is arranged on the upper side and the lower side of the door, the hinge structure comprises a fixed page, a rotating page and a pin shaft, the door is connected with the fixed page, the side wall is connected with the rotating page, and the pin shaft is used for hinging the fixed page and the rotating page; the first pressure sensor is arranged on the inner side of the top of the pin shaft positioned on the upper side of the vehicle door, and the second pressure sensor is arranged on the outer side of the top of the pin shaft positioned on the upper side of the vehicle door.

In some embodiments, the controller comprises:

the first control unit is used for acquiring pressure signals of the first pressure sensor and the second pressure sensor in the process that the distance between the vehicle door and the side wall is reduced from a first distance to a second distance;

a judging unit configured to judge whether the first pressure detected by the first pressure sensor and the second pressure detected by the second pressure sensor are normal;

a second control unit for controlling the door to be in a safe state when the first pressure and the second pressure are abnormal; and when the first pressure and the second pressure are normal, controlling the vehicle door to be normally closed.

In some embodiments, the determining unit includes:

a comparison subunit for comparing magnitudes of the first pressure and the second pressure;

a determining subunit configured to determine that the first pressure and the second pressure are abnormal when the first pressure is smaller than the second pressure; or alternatively

The comparison subunit is used for calculating the difference between the first pressure and the second pressure and comparing the difference between the first pressure and the second pressure with a preset pressure threshold value;

the determining subunit is configured to determine that the first pressure and the second pressure are abnormal when a difference between the first pressure and the second pressure exceeds a preset pressure threshold.

In some embodiments, a door seal is installed around the door, a side wall seal is installed around the side wall, and the judging unit is further configured to judge whether the distance between the door and the side wall is the first distance when detecting that the door seal contacts the side wall seal.

In some embodiments, the second distance is 1/3 of the first distance.

In some embodiments, the door anti-pinch device further comprises an alarm connected to the controller for alerting when the first pressure and the second pressure are abnormal.

In some embodiments, the alarm is a buzzer or an audible and visual alarm.

In some embodiments, the vehicle door is a self-priming door, a self-priming door lock is mounted on the vehicle door, and the controller is connected with the self-priming door lock to control the self-priming door lock to stop working when the first pressure and the second pressure are abnormal.

Another aspect of the utility model provides a vehicle comprising the door anti-pinch device described above.

According to the door anti-pinch device and the vehicle, the pressure sensors are respectively arranged on the inner side and the outer side of the joint of the door and the side wall, and the distance sensor is arranged on the outer side of the door, so that foreign matters between the door and the side wall in the closing process of the door can be detected in real time within the safety distance range of the door closing, further the opening and closing of the door are controlled, the accurate detection of the foreign matters can be realized, the door closing safety is effectively improved, the door pinching problem is avoided, and the use experience of the vehicle of a user is improved; in addition, the anti-pinch device for the vehicle door is simple in structure, less in structural change of the vehicle, low in cost and wide in application range.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a door anti-pinch device according to an embodiment of the present utility model;

FIG. 2 is a side view of a hinge structure of a door anti-pinch device according to an embodiment of the present utility model;

FIG. 3 is a top view of a hinge structure of a door anti-pinch device according to an embodiment of the present utility model;

fig. 4 is another schematic structural view of a door anti-pinch device according to an embodiment of the present utility model.

Reference numerals:

1. a first pressure sensor; 2. a second pressure sensor; 3. a distance sensor; 4. a controller; 41. a first control unit; 42. a judging unit; 43. a second control unit; 5. a hinge structure; 51. a fixed page; 52. rotating the page; 53. a pin shaft; 6. an alarm; 7. self-priming door lock.

Detailed Description

Various aspects and features of the present utility model are described herein with reference to the accompanying drawings.

It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the utility model will occur to persons of ordinary skill in the art.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with a general description of the utility model given above, and the detailed description of the embodiments given below, serve to explain the principles of the utility model.

These and other characteristics of the utility model will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It is also to be understood that, although the utility model has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the utility model, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present utility model will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the utility model, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the utility model in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present utility model in virtually any appropriately detailed structure.

The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the utility model.

Fig. 1 to 4 show schematic structural views of a door anti-pinch device according to an embodiment of the present utility model. As shown in fig. 1 to 4, a first embodiment of the present utility model provides a door anti-pinch device, comprising a first pressure sensor 1, a second pressure sensor 2, a distance sensor 3 and a controller 4, wherein the first pressure sensor 1 is installed on the inner side of a junction of a door and a side wall to detect a first pressure of the junction of the door and the side wall near an in-vehicle position; the second pressure sensor 2 is arranged on the outer side of the joint of the vehicle door and the side wall so as to detect second pressure of the joint of the vehicle door and the side wall, which is close to the position outside the vehicle; the distance sensor 3 is installed at the outer side of the vehicle door to detect the distance between the vehicle door and the side wall; and a controller 4 connected with the first pressure sensor 1, the second pressure sensor 2 and the distance sensor 3 respectively to control the opening and closing of the vehicle door according to the first pressure, the second pressure and the distance between the vehicle door and the side wall.

The first pressure sensor 1, the second pressure sensor 2 and the distance sensor 3 are all connected with the controller 4, when the first pressure sensor 1, the second pressure sensor 2 and the distance sensor 3 acquire effective data, the effective data are transmitted to the controller 4, the controller 4 processes and analyzes the data according to a preset or subsequent brushed-in operation program, and finally a control command for controlling the opening and closing of the vehicle door is output. That is, in this embodiment, the vehicle door may be an automatic door.

In the closing process of the vehicle door, if foreign matters such as fingers appear between the vehicle door and the side wall, the inner pressure value and the outer pressure value of the joint of the vehicle door and the side wall are suddenly changed, so in the embodiment, the change of the inner pressure value and the outer pressure value of the joint of the vehicle door and the side wall can be detected through the pressure sensors arranged at the inner side and the outer side of the joint of the vehicle door and the side wall, the foreign matters appearing between the vehicle door and the side wall can be detected, and when the foreign matters appear, the vehicle door is controlled to be opened or kept in the current state, the foreign matters are processed, and the condition that the vehicle door is continuously closed to cause damage to the foreign matters is avoided. For example, when the foreign matter is a finger, an opening signal can be output to the vehicle door to control the vehicle door to open, so that the finger is convenient to move away; when the foreign matters are sundries stuck to the vehicle door, an opening signal can be output to the vehicle door to control the vehicle door to open, the sundries are processed, and then the vehicle door is controlled to be closed after the processing. When no foreign matter is detected, the door is controlled to be closed continuously until the door is closed completely.

Meanwhile, in this embodiment, the distance between the door and the side wall is detected by the distance sensor 3, so that the foreign matter can be detected within the safety distance range of the door being closed, that is, by the pressure sensor, for example, when the door is closed from opening to a first distance, the distance between the door and the side wall is large, and safety accidents such as finger pinching and the like are not easy to be caused; and when the door is closed completely from the first distance, the distance between the door and the side wall is smaller, if the foreign matter is detected in the process, finger pinching may be caused when the foreign matter is detected, so in this embodiment, the distance sensor 3 is matched with the pressure sensor to detect the foreign matter within the safe distance range of closing the door, thereby avoiding the problem of foreign matter pinching possibly existing and improving the safety of closing the door.

As can be seen from the above, the anti-pinch device for the vehicle door provided by the embodiment of the utility model can detect the foreign matters between the vehicle door and the side wall in real time in the safety distance range of closing the vehicle door by arranging the pressure sensors on the inner side and the outer side of the joint of the vehicle door and the side wall respectively and arranging the distance sensor 3 on the outer side of the vehicle door, thereby controlling the opening and closing of the vehicle door, realizing the accurate detection of the foreign matters, effectively improving the door closing safety, avoiding the problem of pinching hands of the vehicle door and improving the use experience of the vehicle of a user; in addition, the anti-pinch device for the vehicle door is simple in structure, less in structural change of the vehicle, low in cost and wide in application range.

In this embodiment, the inner side of the junction between the door and the side wall, the outer side of the junction between the door and the side wall, and the outer side of the door are the inner sides of the junction between the door and the side wall, which are the sides of the junction between the door and the side wall, relative to the interior space; the side of the door, which is close to the interior space, is the inner side of the door, and the side of the door, which is far away from the interior space, is the outer side of the door.

The door is installed in the side wall of automobile body, includes two upper and lower mounting points between door and the side wall, and wherein, keep away from the mounting point position on ground (the position that is close to door upper portion) between door and the side wall is first mounting point position, and the mounting point position that is close to ground is the second mounting point position, and first pressure sensor 1 and second pressure sensor 2 are installed in at least one mounting point position in two mounting point positions as a set of sensor. Namely, the first pressure sensor 1 and the second pressure sensor 2 can be only arranged on the inner side and the outer side of the first installation point, can also be only arranged on the inner side and the outer side of the second installation point, or the first pressure sensor 1 and the second pressure sensor 2 are respectively provided with two, and a group of first pressure sensor 1 and second pressure sensor 2 are respectively arranged on the first installation point and the second installation point so as to obtain more comprehensive pressure detection data and improve the detection accuracy degree of the pressure data.

It should be noted that, no matter the first pressure sensor 1 and the second pressure sensor 2 are located at the first installation point location or the second installation point location, the first pressure sensor 1 is always installed at the inner side of the junction between the vehicle door and the side wall, so as to detect the first pressure of the junction between the vehicle door and the side wall, which is close to the position in the vehicle; the second pressure sensor 2 is always arranged on the outer side of the joint of the vehicle door and the side wall so as to detect the second pressure of the joint of the vehicle door and the side wall, which is close to the position outside the vehicle.

The door grip is more likely to occur at the upper portion of the door, and therefore, the first pressure sensor 1 and the second pressure sensor 2 are preferably installed at the first installation site to obtain a better detection effect.

The distance sensor 3 is further installed on the inner side of the outer side edge of the vehicle door, specifically, the distance sensor 3 is arranged on one side, far away from the first installation point position or the second installation point position, of the vehicle door, and then the distance between the vehicle door and the side wall is detected in real time in the closing process of the vehicle door. Preferably, the distance sensor 3 may be one or more of a photoelectric distance sensor, an ultrasonic distance sensor, a microwave or radar sensor, an inductive distance sensor, a capacity distance sensor, and a TOF sensor to more precisely detect the distance between the door jamb and the body side wall.

In some embodiments, as shown in fig. 2 and 3, the door and the side wall are connected by a hinge structure 5, the hinge structure 5 is disposed on the upper and lower sides of the door (i.e. the first mounting point and the second mounting point), each hinge structure 5 includes a fixed leaf 51, a rotating leaf 52 and a pin 53, the door is connected to the fixed leaf 51, the side wall is connected to the rotating leaf 52, and the pin 53 articulates the fixed leaf 51 and the rotating leaf 52; the first pressure sensor 1 is disposed inside the top of the pin 53 on the upper side of the door, and the second pressure sensor 2 is disposed outside the top of the pin 53 on the upper side of the door.

The hinge structure 5 is divided into a first hinge structure and a second hinge structure according to the difference of mounting positions on the upper side and the lower side of the vehicle door, in this embodiment, the first pressure sensor 1 and the second pressure sensor 2 are arranged at a position close to the first hinge structure on the upper side of the vehicle door and are mounted at the top of the pin shaft 53, on the one hand, foreign matters in the upper part of the vehicle door, which are easy to be clamped, can be accurately detected, on the other hand, a groove can be formed in the top of the pin shaft 53 or a side wall close to the top, the pressure sensor is placed in the groove, the pressure sensor is protected, and the turning of the turning page 52 sleeved on the pin shaft 53 relative to the fixed page 51 is not influenced, so that the detection is performed in the normal closing process of the vehicle door. Of course, the first pressure sensor 1 and the second pressure sensor 2 may also be disposed on both inner and outer sides of the pin 53 of the second hinge structure.

In some embodiments, as shown in fig. 4, the controller 4 includes a first control unit 41, a judging unit 42, and a second control unit 43, where the first control unit 41 is configured to obtain pressure signals of the first pressure sensor 1 and the second pressure sensor 2 during a process of reducing a distance between the door and the side wall from a first distance to a second distance; the judging unit 42 is configured to judge whether the first pressure detected by the first pressure sensor 1 and the second pressure detected by the second pressure sensor 2 are normal; the second control unit 43 is used for controlling the vehicle door to be in a safe state when the first pressure and the second pressure are abnormal; and when the first pressure and the second pressure are normal, the vehicle door is controlled to be normally closed.

When the door is closed from the fully opened state or the larger opening position, the distance between the door and the side wall is larger, and the problem of pinching foreign matters is completely avoided, so in the embodiment, when the door is closed to the first position (the distance between the door and the side wall is the first distance), the pressure signals of the first pressure sensor 1 and the second pressure sensor 2 are detected, the mutual extrusion force between the door and the side wall is still smaller in the process of closing from the first position to the second position (the distance between the door and the side wall is the second distance), pinching is not easy to be caused, and the mutual extrusion force between the door and the side wall is larger in the process of closing from the second position to the fully closed. Therefore, in this embodiment, the first control unit 41 detects the pressure signal of the door in the process of reducing the first distance to the second distance, so that the foreign matter can be detected in advance within the safe distance range of the door, the problem of pinching the door is effectively avoided, the pressure detection (the door is closed from a certain position to the first position and from the second position to the completely closed position) is not required to be always started, the pressure data amount is reduced, the data processing efficiency is improved, the foreign matter detection efficiency is further improved, the energy consumption is saved, and the service life of the door pinching prevention device is prolonged.

If no foreign matter is detected in the process of reducing the distance between the vehicle door and the side wall from the first distance to the second distance, no foreign matter exists in the process of continuously closing the door, the second distance is smaller, and the foreign matter cannot extend between the vehicle door and the side wall, so that the problem of clamping the hand does not exist.

It should be noted that the first distance and the second distance may be preset, or may be set subsequently according to the door, the size of the foreign matter, etc., so as to ensure more accurate detection of the foreign matter according to the distance data between the door and the side wall of different vehicle types.

The judging unit 42 acquires the first pressure detected by the first pressure sensor 1 and the second pressure detected by the second pressure sensor 2 in real time during the process of reducing the distance between the door and the side wall from the first distance to the second distance, and judges whether the first pressure and the second pressure are normal. When the judging unit 42 determines that the first pressure and the second pressure are abnormal, the second control unit 43 determines that foreign matters exist between the vehicle door and the side wall, and further controls the vehicle door to stop to continue to close or controls the vehicle door to open so as to enable the vehicle door to be in a safe state, and damage to foreign matters such as fingers is avoided; when the judging unit 42 determines that the first pressure and the second pressure are normal, the second control unit 43 determines that no foreign matter exists between the door and the side wall, and the second control unit 43 controls the door to continue to close until the door is completely closed, thereby completing automatic closing of the door.

In some embodiments, the judging unit 42 includes a comparing subunit for comparing magnitudes of the first pressure and the second pressure and a determining subunit; the determining subunit is configured to determine that the first pressure and the second pressure are abnormal when the first pressure is smaller than the second pressure.

In this embodiment, in the extrusion process of the door and the side wall, the pressure values of the inner side and the outer side of the joint (hinge structure position) of the door and the side wall will be suddenly changed, and at this time, the pressure value of the outer side is greater than the pressure value of the inner side, so that the comparing subunit of the determining unit 42 may directly compare the first pressure with the second pressure to determine whether the first pressure is less than the second pressure, so as to determine whether the foreign matter exists between the door and the side wall after detecting the first pressure and the second pressure. And the determining subunit determines that the first pressure and the second pressure are abnormal when the comparing subunit judges that the first pressure is smaller than the second pressure.

In other embodiments, the comparison subunit is configured to calculate a difference between the first pressure and the second pressure, and compare the difference between the first pressure and the second pressure to a preset pressure threshold; the determining subunit is used for determining that the first pressure and the second pressure are abnormal when the difference between the first pressure and the second pressure exceeds the preset pressure threshold value.

In the closing process of the vehicle door, a certain pressure difference exists between the inner side and the outer side of the joint of the vehicle door and the side wall all the time, namely, a certain pressure difference exists between the first pressure and the second pressure all the time, if only the first pressure and the second pressure are compared, the judgment is inaccurate, so that in order to improve the judgment accuracy, in the embodiment, the judgment unit 42 can judge whether the difference between the first pressure and the second pressure is normal or not through the comparison subunit, if the difference between the first pressure and the second pressure is within the preset pressure threshold range, the determination subunit determines that the first pressure and the second pressure are normal, no foreign matter exists between the vehicle door and the side wall, and if the difference between the first pressure and the second pressure exceeds the preset pressure threshold, the determination of the first pressure and the second pressure are abnormal, and the foreign matter exists between the vehicle door and the side wall.

The preset pressure threshold may be a preset fixed value, or may be determined according to a normal pressure difference between the first pressure and the second pressure, so as to improve the accuracy of the judgment unit 42. For example, a normal pressure difference between the first pressure and the second pressure is a, and when the first pressure and the second pressure exceed 10% of the above normal pressure difference a value, it is determined that foreign matter is present. In a specific implementation, the determining unit 42 may select different manners according to actual needs to determine whether the first pressure and the second pressure are normal, for example, to improve the foreign object detection efficiency, the first pressure and the second pressure may be directly compared; to improve the foreign matter detection accuracy, the difference between the first pressure and the second pressure may be compared with a preset pressure threshold.

In some embodiments, a door seal is mounted around the door, a side seal is mounted around the side wall, and the determining unit 42 is further configured to determine whether the distance between the door and the side wall is the first distance when it is detected that the door seal contacts the side seal.

In the process of closing the vehicle door, the vehicle door sealing strip and the side wall sealing strip are contacted first and then pressed mutually, so in this embodiment, the judging unit 42 judges whether the distance between the vehicle door and the side wall is the first distance when detecting that the vehicle door sealing strip and the side wall sealing strip are contacted, if so, the first control unit 41 starts to detect the pressure signals of the first pressure sensor 1 and the second pressure sensor 2, and further judges whether the foreign matter exists between the vehicle door and the side wall. When the door sealing strip is not contacted with the side wall sealing strip, the door and the side wall are in a safe distance range, and the door cannot influence foreign matters, so that the door can be continuously closed without detecting pressure. In some embodiments, the second distance is 1/3 of the first distance.

In the process that the distance between the car door and the side wall is reduced to the second distance from the first distance, the time period of contact between the car door sealing strip and the side wall sealing strip is mainly reserved, the pressure value between the car door sealing strip and the side wall sealing strip is small at the moment, clamping damage is not easy to occur, and therefore foreign matter detection control is conducted before the distance between the car door and the side wall reaches L/3, and accuracy of foreign matter detection is improved.

In some embodiments, as shown in fig. 4, the door anti-pinch device further includes an alarm 6, where the alarm 6 is connected to the controller 4 for alerting when the first pressure and the second pressure are abnormal.

In this embodiment, as shown in fig. 4, when the controller 4 acquires data acquired by the first pressure sensor 1, the second pressure sensor 2 and the distance sensor 3, and the pressure difference between the first pressure and the second pressure exceeds the preset pressure difference threshold, the controller 4 detects that a foreign object exists between the vehicle door and the side wall, and sends an alarm prompt through the alarm 6, so that the user can manually open the door, or can conveniently remotely control the vehicle, process the foreign object, and the like.

In some embodiments, the alarm 6 is a buzzer or an audible and visual alarm. In this embodiment, besides providing an alarm for the user through the buzzer and the audible-visual alarm, the alarm information can be transmitted into the whole vehicle network and the internet through the controller 4, so that subsequent safety guarantee and medical service can be provided in time based on the detection data.

In some embodiments, as shown in fig. 4, the vehicle door is a self-priming door, a self-priming door lock 7 is mounted on the vehicle door, and the controller 4 is connected with the self-priming door lock 7 to control the self-priming door lock 7 to stop working when the first pressure and the second pressure are abnormal.

The self-priming door lock is an actuating mechanism of the controller 4, and the controller 4 controls the self-priming door lock 7 to stop automatic door closing work when judging that the first pressure and the second pressure are abnormal based on data acquired by the first pressure sensor 1, the second pressure sensor 2 and the distance sensor 3 so as to avoid further damage to foreign matters such as fingers and improve the safety of closing the door.

A second embodiment of the present utility model provides a vehicle including the door anti-pinch device described above, where the vehicle corresponds to the door anti-pinch device of the above embodiment, and any optional item in the door anti-pinch device embodiment is also applicable to the vehicle embodiment, and is not repeated herein.

In the above embodiments, the detection of the foreign matters during the closing process of the vehicle door is mainly described in detail, so as to realize anti-pinch during the closing process of the vehicle door. In the process of opening the vehicle door, the distance between the vehicle door and the side wall is gradually increased, the foreign matters such as fingers are not easy to clamp, even if the foreign matters clamp damage problem exists, the foreign matters mainly occur in the process of opening the vehicle door from the completely closed state to the second position, and the foreign matters are difficult to extend into the space between the vehicle door and the side wall in the process, so the foreign matters clamp damage problem does not exist, and the foreign matters clamp damage in the process of opening the vehicle door does not need to be considered.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in the present utility model is not limited to the specific combinations of technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the spirit of the disclosure. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.

Moreover, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the utility model. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.

Claims (10)

1. A door anti-pinch device, comprising:

the first pressure sensor is arranged on the inner side of the joint of the vehicle door and the side wall so as to detect first pressure of the joint of the vehicle door and the side wall, which is close to the position in the vehicle;

the second pressure sensor is arranged on the outer side of the joint of the vehicle door and the side wall so as to detect second pressure of the joint of the vehicle door and the side wall, which is close to the position outside the vehicle;

a distance sensor installed at the outer side of the door to detect the distance between the door and the side wall;

and the controller is respectively connected with the first pressure sensor, the second pressure sensor and the distance sensor so as to control the opening and closing of the vehicle door according to the first pressure, the second pressure and the distance between the vehicle door and the side wall.

2. The door anti-pinch device according to claim 1, wherein the door is connected with the side wall through a hinge structure, the hinge structure is arranged on the upper side and the lower side of the door, the hinge structure comprises a fixed page, a rotating page and a pin shaft, the door is connected with the fixed page, the side wall is connected with the rotating page, and the pin shaft is used for hinging the fixed page and the rotating page;

the first pressure sensor is arranged on the inner side of the top of the pin shaft positioned on the upper side of the vehicle door, and the second pressure sensor is arranged on the outer side of the top of the pin shaft positioned on the upper side of the vehicle door.

3. The door anti-pinch device of claim 1, wherein the controller comprises:

the first control unit is used for acquiring pressure signals of the first pressure sensor and the second pressure sensor in the process that the distance between the vehicle door and the side wall is reduced from a first distance to a second distance;

a judging unit configured to judge whether the first pressure detected by the first pressure sensor and the second pressure detected by the second pressure sensor are normal;

a second control unit for controlling the door to be in a safe state when the first pressure and the second pressure are abnormal; and when the first pressure and the second pressure are normal, controlling the vehicle door to be normally closed.

4. The door anti-pinch device according to claim 3, wherein the judging unit includes:

a comparison subunit for comparing magnitudes of the first pressure and the second pressure;

a determining subunit configured to determine that the first pressure and the second pressure are abnormal when the first pressure is smaller than the second pressure; or alternatively

The comparison subunit is used for calculating the difference between the first pressure and the second pressure and comparing the difference between the first pressure and the second pressure with a preset pressure threshold value;

the determining subunit is configured to determine that the first pressure and the second pressure are abnormal when a difference between the first pressure and the second pressure exceeds a preset pressure threshold.

5. The door anti-pinch device of claim 4, wherein a door seal is installed around the door, a side seal is installed around the side wall,

the judging unit is further used for judging whether the distance between the vehicle door and the side wall is the first distance or not when the contact of the vehicle door sealing strip and the side wall sealing strip is detected.

6. The door anti-pinch device of claim 3, wherein the second distance is 1/3 of the first distance.

7. The door anti-pinch device of claim 3, further comprising an alarm coupled to the controller for alerting when the first pressure and the second pressure are abnormal.

8. The door anti-pinch device of claim 7, wherein the alarm is a buzzer or an audible-visual alarm.

9. The door anti-pinch device of claim 3, wherein the door is a self-priming door, a self-priming door lock is mounted on the door, and the controller is connected to the self-priming door lock to control the self-priming door lock to stop working when the first pressure and the second pressure are abnormal.

10. A vehicle comprising a door anti-pinch device according to any one of claims 1 to 9.