CN113757395A - Control method and system for automobile body pressure relief valve - Google Patents

Control method and system for automobile body pressure relief valve Download PDF

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Publication number
CN113757395A
CN113757395A CN202111008897.9A CN202111008897A CN113757395A CN 113757395 A CN113757395 A CN 113757395A CN 202111008897 A CN202111008897 A CN 202111008897A CN 113757395 A CN113757395 A CN 113757395A
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China
Prior art keywords
door
sensor
pressure relief
vehicle
relief valve
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Pending
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CN202111008897.9A
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Chinese (zh)
Inventor
王伟
杨飘
戴乐宏
刘洋
付金洋
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Lantu Automobile Technology Co Ltd
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Lantu Automobile Technology Co Ltd
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Priority to CN202111008897.9A priority Critical patent/CN113757395A/en
Publication of CN113757395A publication Critical patent/CN113757395A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/223—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves with a plurality of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The application relates to a control method and a system for a pressure relief valve of an automobile body, wherein the control method comprises the following steps: when a user opens the vehicle door to get off the vehicle and closes the vehicle door, acquiring the opening and closing state of the door lock of the vehicle door and the closing speed of the vehicle door; judging whether to open the pressure release valve according to the opening and closing state and the door closing speed; if the door lock is in an opening state and the door closing speed is not less than the preset speed, opening the pressure release valve; otherwise, the pressure relief valve is not opened. The system comprises a collecting device and a control device, wherein the collecting device is used for collecting the opening and closing state of a door lock of the door and the door closing speed of the door when a user opens the door to get off the vehicle and closes the door; the control device is connected with the acquisition device and used for judging whether the pressure release valve is opened or not according to the opening and closing state and the door closing speed. This application reduces the work of doing of the car under-deck internal pressure power of doing through opening the relief valve and reaches the work that reduces the user and close the door and exert the power, solves the difficult problem of closing of door, improves user's use comfort greatly.

Description

Control method and system for automobile body pressure relief valve
Technical Field
The application relates to the technical field of automobiles, in particular to a control method and a control system for an automobile body pressure relief valve.
Background
With the continuous development of the automobile industry and the automobile manufacturing level, the requirement of consumers on the comfort of automobiles is higher and higher. The vehicle body pressure release valve is used as an exchange channel for balancing the internal pressure and the external pressure of the vehicle and is a key component influencing the comfort level of the door closing ear pressure of the vehicle, the noise level in the vehicle and the comfort level of cold and hot temperatures.
The pressure relief valve assembled on the body of the existing automobile is a passive one-way valve, when the pressure in the automobile body is high, the air in the automobile pushes away the valve cover of the air pressure relief valve, and the air in the automobile is discharged to ensure the pressure balance inside and outside the automobile.
However, there is a working condition in the use of the automobile: when all doors are closed and the door glass is lifted (when the door is locked after the door is opened and returned home), the vehicle owner opens one of the doors to get off, and then closes the door, because the air pressure in the vehicle is too high, the door closing resistance is increased, the door is difficult to close, the condition that the door cannot be closed can still occur due to multiple door closing, and the vehicle owner can need to use the stronger strength than the normal use to close the door, thereby greatly influencing the convenience of door closing and reducing the use comfort level of the vehicle owner.
Disclosure of Invention
The embodiment of the application provides a control method and system of automobile body pressure relief valve to solve among the correlation technique because the car internal gas pressure is too high, make the resistance grow of closing the door, the door is difficult to close, can appear closing the door many times and still can't close the condition of door, the car owner can need use more big strength than using at ordinary times to close the door in addition, influences the convenience of closing the door greatly, reduces the problem of car owner's use comfort.
In a first aspect, a method for controlling a pressure relief valve of a vehicle body is provided, which comprises the following steps:
when a user opens the vehicle door to get off the vehicle and closes the vehicle door, acquiring the opening and closing state of the door lock of the vehicle door and the closing speed of the vehicle door;
judging whether to open the pressure release valve according to the opening and closing state and the door closing speed;
if the door lock is in an opening state and the door closing speed is not less than a preset speed, opening the pressure release valve;
otherwise, the pressure relief valve is not opened.
In some embodiments, the obtaining of the door closing speed specifically includes the following steps:
arranging a first sensor at the door lock, arranging a second sensor on the vehicle door, wherein the second sensor is positioned on connecting lines of all hinges of the vehicle door, and the connecting lines of the second sensor and the first sensor are parallel to a horizontal plane;
acquiring the distance between the second sensor and the first sensor and the rotation angle of the first sensor through the second sensor;
and acquiring the rotating speed of the first sensor according to the distance, the rotating angle and the rotating duration of the first sensor, and taking the rotating speed as the door closing speed.
In some embodiments, obtaining the rotation speed of the first sensor specifically includes the following steps:
acquiring the arc length of the rotating track of the first sensor according to the distance and the rotating angle;
and acquiring the rotating speed of the first sensor according to the arc length and the rotating time length of the first sensor.
In some embodiments, acquiring the opening and closing state of the door lock specifically includes the following steps:
providing a first sensor at the door lock;
judging the opening and closing state of the door lock according to the compression amount of the first sensor;
if the compression amount is not less than the preset compression amount, judging that the door lock is closed;
otherwise, judging that the door lock is opened.
In some embodiments, after opening the pressure relief valve, the method further comprises the following steps:
periodically acquiring the opening and closing state of the door lock, and judging whether the door lock is closed or not according to the opening and closing state;
if the door lock is closed, closing the pressure relief valve;
otherwise, keeping the pressure relief valve open.
In some embodiments, the predetermined speed is not less than 1.2 m/s.
In a second aspect, there is provided a control system for an automotive body pressure relief valve, comprising:
the acquisition device is used for acquiring the opening and closing state of a door lock of the vehicle door and the closing speed of the vehicle door when a user opens the vehicle door to get off the vehicle and then closes the vehicle door;
and the control device is connected with the acquisition device and used for judging whether to open the pressure release valve according to the opening and closing state and the door closing speed.
In some embodiments, the acquisition device comprises:
the first sensor is arranged at the door lock and used for collecting the opening and closing state;
the second sensor is arranged on the vehicle door, the second sensor is positioned on connecting lines of all hinges of the vehicle door, and the connecting lines of the second sensor and the first sensor are parallel to a horizontal plane; the second sensor is used for acquiring the distance between the second sensor and the first sensor and the rotation angle of the first sensor;
the control device is used for acquiring the rotating speed of the first sensor according to the distance, the rotating angle and the rotating duration of the first sensor, and taking the rotating speed as the door closing speed.
In some embodiments, the pressure relief valve comprises:
a valve body having a pressure relief passage;
the valve plate is arranged on the valve body;
and the driver is connected with the valve plate and is used for driving the valve plate to rotate so as to open and close the valve plate on the pressure relief channel.
In some embodiments, the driver comprises:
the rotating shaft is connected with the valve plate;
and the motor is connected with the rotating shaft and is used for driving the rotating shaft to rotate so as to drive the valve plate to rotate.
The beneficial effect that technical scheme that this application provided brought includes: when a user feels that the door is difficult to close, the embodiment of the application reduces the work done by the force applied by the user to close the door by reducing the pressure in the vehicle cabin, namely opening the pressure release valve to quickly discharge the gas in the vehicle cabin and reduce the pressure in the vehicle cabin, so that when the user closes the door again, the door can be easily closed without using more powerful gas and without multiple door closing operations, the condition that the door is difficult to close can not occur, and the use comfort level of the user is greatly improved.
The embodiment of the application provides a control method and a control system for a pressure relief valve of an automobile body, because the door closing speed of an automobile door is not less than the preset speed, and when a door lock is not closed, the user can feel that the automobile door is difficult to close by feeding back force exerted by the user, therefore, the embodiment of the application reduces the work done by the force exerted by the user to close the automobile door by reducing the pressure in the automobile cabin, the pressure in the automobile cabin is reduced by opening the pressure relief valve in a way of reducing the work done by the pressure in the automobile cabin, the air in the automobile cabin is rapidly discharged, and the pressure in the automobile cabin is reduced, so that when the automobile door is closed again by the user, the automobile door can be closed easily without using more powerful air and without multiple door closing operations, the difficult closing condition of the automobile door can not occur, and the use comfort level of the user is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a control method for an automotive body pressure relief valve according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a vehicle door according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a pressure relief valve provided in an embodiment of the present application;
fig. 4 is a schematic diagram of a pressure relief valve provided in an embodiment of the present application in a closed state;
fig. 5 is a schematic diagram of a pressure relief valve provided in an embodiment of the present application in an open state.
In the figure: 1. a vehicle door; 10. a door lock; 11. a hinge; 2. a pressure relief valve; 20. a valve body; 21. a valve plate; 22. a driver; 220. a rotating shaft; 221. a motor; 23. a pressure relief channel; 3. a first sensor; 4. a second sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
referring to fig. 1, embodiment 1 of the present application provides a control method for an automotive body pressure relief valve, which includes the following steps:
s1: when a user opens the vehicle door 1 to get off the vehicle and then closes the vehicle door 1, acquiring the opening and closing state of a door lock 10 of the vehicle door 1 and the closing speed of the vehicle door 1;
s2: judging whether to open the pressure release valve 2 or not according to the opening and closing state and the door closing speed;
s3: if the door lock 10 is in an open state and the door closing speed is not less than the preset speed, opening the pressure release valve 2;
s4: otherwise, the relief valve 2 is not opened.
When a user opens the door 1 to get off the vehicle and closes the door 1, the default vehicle window is closed, so that when the user closes the door 1, a large amount of gas can quickly enter the vehicle cabin to cause the pressure in the vehicle cabin to be rapidly increased, the work of the user on the door 1 and the work of the gravity of the door 1 when the user closes the door is positive work, and the work of the pressure in the vehicle cabin and the work of the accessories (such as a hinge and a limiter) of the door are negative work; the following energy conservation is satisfied in the whole door closing process:
Wuser applied force+WGravity force＝WPressure intensity of vehicle cabin+WVehicle door accessory
In the working process, the gravity and the work done by the vehicle door accessory are constant values and cannot change along with the change of the working condition, so that how much work a user needs to do to close the vehicle door 1 is mainly related to the pressure in the vehicle cabin. The direct expression of the work done by the force applied by the user is the magnitude of the door closing speed of the vehicle door 1; when the force exerted by the user is large, the door closing speed of the door 1 is higher, and vice versa (work-speed correlation formula: W-1/2 mv 2).
In embodiment 1 of the present application, the pressure in the cabin is adjusted to do work mainly by detecting the door closing speed and the opening and closing state of the door lock 10, and when the door closing speed of the vehicle door 1 is not less than the preset speed and the door lock 10 is not closed yet, the user can feel that the vehicle door is difficult to close by feeding back the force applied by the user. Therefore, in embodiment 1 of the present application, the work of reducing the force applied by the user to close the vehicle door 1 is achieved by reducing the pressure in the vehicle cabin, the pressure relief valve 2 is opened in the manner of reducing the pressure in the vehicle cabin, the gas in the vehicle cabin is rapidly discharged, and the pressure in the vehicle cabin is reduced, so that when the user closes the vehicle door 1 again, the vehicle door 1 can be easily closed without using stronger gas and without multiple door closing operations, the situation that the vehicle door 1 is difficult to close does not occur, and the use comfort of the user is greatly improved.
Optionally, referring to fig. 2, the step S1 of obtaining the door closing speed specifically includes the following steps:
s10: a first sensor 3 is arranged at a door lock 10, a second sensor 4 is arranged on a vehicle door 1, the second sensor 4 is positioned on the connecting line of all hinges 11 of the vehicle door 1, and the connecting line of the second sensor 4 and the first sensor 3 is parallel to a horizontal plane;
during the process of closing the door 1, the first sensor 3 rotates around the second sensor 4, and the rotation track is approximately circular arc.
S11: acquiring the distance between the second sensor 4 and the first sensor 3 and the rotation angle of the first sensor 3 through the second sensor 4;
the distance between the first sensor 3 and the second sensor 4 corresponds to the radius of the circular arc, and the angle of rotation of the first sensor 3 corresponds to the central angle.
S12: acquiring the arc length of the rotating track of the first sensor 3 according to the distance and the rotating angle;
the arc length L is calculated using the following formula:
Figure BDA0003238126520000061
in the formula: n is the rotation angle of the first sensor 3; r is the distance between the first sensor 3 and the second sensor 4.
S13: and acquiring the rotating speed of the first sensor 3 according to the arc length and the rotating time length of the first sensor 3, and taking the rotating speed as the door closing speed.
The door closing speed v is L/t, and t is the rotation time period of the first sensor 3.
Optionally, the step S1 of obtaining the open/close state of the door lock 10 specifically includes the following steps:
s14: a first sensor 3 is provided at the door lock 10;
s15: judging the opening and closing state of the door lock 10 according to the compression amount of the first sensor 3;
s16: if the compression amount is not less than the preset compression amount, judging that the door lock 10 is closed;
s17: otherwise, the door lock 10 is judged to be opened.
When the door lock 10 is in the closed state, the door lock 10 is locked on the vehicle body, which causes the first sensor 3 to be compressed, and therefore, embodiment 1 of the present application determines whether the door lock 10 is closed by the compression amount of the first sensor 3. The preset compression amount of the embodiment 1 of the application is 2mm, if the compression amount of the first sensor 3 is not less than 2mm, it is indicated that the door lock 10 is locked on the vehicle body, and the door lock 10 is judged to be closed; if the compression amount of the first sensor 3 is smaller than 2mm, it is indicated that the door lock 10 is not locked on the vehicle body and the first sensor 3 is not compressed by 2mm, and then the door lock 10 is judged to be unlocked.
Further, after the relief valve 2 is opened in step S3, the method further includes the steps of:
s30: periodically acquiring the opening and closing state of the door lock 10, and judging whether the door lock 10 is closed or not according to the opening and closing state;
s31: if the door lock 10 is closed, closing the pressure release valve 2;
s32: otherwise, the relief valve 2 is kept open.
After the pressure release valve 2 is opened, the opening and closing state of the door lock 10 is periodically acquired, whether the door lock is closed or not is judged according to the opening and closing state of the door lock 10, if the door lock 10 is closed, the vehicle door 1 is closed again, the action of the pressure release valve 2 is finished, and the pressure release of the vehicle cabin is not needed; if the door lock 10 is not closed yet, which indicates that the user has not closed the vehicle door 1 again, it is necessary to keep the relief valve 2 open until the door lock 10 is closed. So that the pressure in the vehicle cabin can be reduced by opening the pressure relief valve 2 again when the vehicle door is difficult to close next time.
Preferably, the preset speed is not less than 1.2 m/s.
The preset speed of embodiment 1 of the application is 1.2m/s, when the door closing speed of the vehicle door 1 reaches 1.2m/s, it indicates that the force applied by the user to the vehicle door 1 is above the average value of normal vehicle door closing, and under the operation of quickly closing the vehicle door 1, if the door lock 10 is not closed yet, it indicates that the pressure in the vehicle cabin is too high, so that the resistance force applied to the vehicle door 1 is too high, and the problem of difficult vehicle door closing can occur; at this time, the pressure in the vehicle cabin needs to be reduced by opening the pressure relief valve 2 to discharge the gas in the vehicle cabin, so that the user can smoothly close the vehicle door 1 when closing the vehicle door 1 again, and the problem that the vehicle door 1 is difficult to close is avoided. If the door closing speed of the door 1 is less than 1.2m/s, which means that the force applied by the user to close the door 1 is below the average value of the normal door closing, and this condition does not cause the pressure in the cabin to rise rapidly, the work done by the pressure in the cabin does not greatly affect the closing of the door 1 regardless of whether the door lock 10 is closed, and this condition is most likely caused by an improper operation of the user to close the door 1, so even if the user opens the relief valve 2, the user still does not operate the door 1, or the door 1 cannot be closed.
Example 2:
the embodiment 2 of the application provides a control system of an automobile body pressure relief valve, which comprises an acquisition device and a control device, wherein the acquisition device is used for acquiring the opening and closing states of a door lock 10 of an automobile door 1 and the door closing speed of the automobile door 1 when a user opens the automobile door 1 to get off and then closes the automobile door 1; the control device is connected with the acquisition device and used for judging whether to open the pressure release valve 2 according to the opening and closing state and the door closing speed.
The controller of embodiment 2 of the application is a vehicle control unit ECU, and mainly collects the door closing speed and the opening and closing state of the door lock 10 through a collecting device to adjust the pressure in the cabin to do work, and when the door closing speed of the vehicle door 1 is not less than the preset speed and the door lock 10 is not closed, the force applied by a user is fed back to enable the user to feel that the vehicle door is difficult to close. The controller controls the pressure release valve 2 to be opened, discharges the gas in the vehicle cabin quickly, and reduces the pressure in the vehicle cabin, so that when the user closes the vehicle door 1 again, the user can easily close the vehicle door 1 without using stronger gas and closing the door for multiple times, the condition that the vehicle door 1 is difficult to close can not occur, and the use comfort of the user is greatly improved.
Preferably, referring to fig. 2, the collecting device includes a first sensor 3 and a second sensor 4, the first sensor 3 is disposed at the door lock 10 and is used for collecting the open/close state; the second sensor 4 is arranged on the vehicle door 1, the second sensor 4 is positioned on the connecting line of all hinges 11 of the vehicle door 1, and the connecting line of the second sensor 4 and the first sensor 3 is parallel to the horizontal plane; the second sensor 4 is used for acquiring the distance between the second sensor and the first sensor 3 and the rotation angle of the first sensor 3; the control device is used for acquiring the arc length of the rotating track of the first sensor 3 according to the distance and the rotating angle; and the controller is further configured to obtain the rotation speed of the first sensor 3 according to the arc length and the rotation duration of the first sensor 3, and use the rotation speed as the door closing speed.
During the process of closing the door 1, the first sensor 3 rotates around the second sensor 4, and the rotation track is approximately circular arc. The distance between the first sensor 3 and the second sensor 4 corresponds to the radius of the circular arc, and the angle of rotation of the first sensor 3 corresponds to the central angle. The door closing speed v is L/t, where L is the arc length of the rotation trajectory of the first sensor 3; t is the rotation period of the first sensor 3.
The arc length L is calculated using the following formula:
Figure BDA0003238126520000091
in the formula: n is the rotation angle of the first sensor 3; r is the distance between the first sensor 3 and the second sensor 4.
The first sensor 3 is also used to detect whether the door lock 10 is closed, specifically: when the door lock 10 is in the closed state, the door lock 10 is locked on the vehicle body, which causes the first sensor 3 to be compressed, and therefore, embodiment 2 of the present application determines whether the door lock 10 is closed by the compression amount of the first sensor 3. In embodiment 2 of the present application, the preset compression amount is 2mm, and if the compression amount of the first sensor 3 is not less than 2mm, it is determined that the door lock 10 is locked on the vehicle body, and it is determined that the door lock 10 is closed; if the compression amount of the first sensor 3 is smaller than 2mm, it is indicated that the door lock 10 is not locked on the vehicle body and the first sensor 3 is not compressed by 2mm, and then the door lock 10 is judged to be unlocked.
Alternatively, referring to fig. 3 to 5, the relief valve 2 includes a valve body 20, a valve sheet 21 and an actuator 22, the valve body 20 having a relief passage 23; the valve plate 21 is arranged on the valve body 20; the driver 22 is connected to the valve plate 21 and is used for driving the valve plate 21 to rotate, so that the valve plate 21 is opened and closed on the pressure relief channel 23.
When the pressure relief valve 2 needs to be opened, the controller controls the driver 22 to drive the valve plate 21 to rotate so as to open the pressure relief channel 23; when the pressure relief valve 2 needs to be closed, the controller controls the driver 22 to drive the valve plate 21 to rotate so as to close the pressure relief passage 23.
Preferably, as shown in fig. 4 and 5, the driver 22 includes a rotating shaft 220 and a motor 221, and the rotating shaft 220 is connected to the valve plate 21; the motor 221 is connected to the rotating shaft 220 and is used for driving the rotating shaft 220 to rotate so as to drive the valve plate 21 to rotate.
When the pressure relief valve 2 needs to be opened, the controller drives the rotating shaft 220 to rotate forward through the driver 22 so as to drive the valve plate 21 to rotate and open the pressure relief channel 23; when the pressure relief valve 2 needs to be closed, the controller drives the rotating shaft 220 to rotate reversely through the driver 22 so as to drive the valve plate 21 to rotate and close the pressure relief channel 23.
The control system of the automobile body pressure relief valve in embodiment 2 of the application has the following specific working principle:
when a user opens the vehicle door 1 to get off the vehicle and closes the vehicle door 1, the first sensor 3 and the second sensor 4 on the vehicle door 1 transmit the opening and closing state of the door lock 10, the distance r between the first sensor 3 and the second sensor 4 and the rotation angle n of the first sensor 3 to the ECU, the ECU calculates the door closing speed v of the vehicle door 1 through r, n and the rotation time length of the first sensor 3, if the door closing speed v is not less than 1.2m/s and the door lock 10 is not closed, the current of the driver 22 is switched on, the driver 22 starts to work, the valve plate 21 is driven to rotate through the rotating shaft 220 to open the pressure relief channel 23 for pressure relief work, the ECU controls to cut off the current of the driver 22 when the user closes the vehicle door for the second time, the valve plate 21 is driven to rotate reversely through the rotating shaft 220 to close the pressure relief channel 23, and the pressure relief work is finished; if the door closing speed v is less than 1.2m/s, the door lock 10 keeps the opening and closing state of the pressure release valve 2 unchanged no matter the door lock is opened or closed.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A control method for a pressure relief valve of an automobile body is characterized by comprising the following steps:
when a user opens the vehicle door (1) to get off the vehicle and then closes the vehicle door (1), acquiring the opening and closing state of a door lock (10) of the vehicle door (1) and the closing speed of the vehicle door (1);
judging whether the pressure release valve (2) is opened or not according to the opening and closing state and the door closing speed;
if the door lock (10) is in an opening state and the door closing speed is not less than the preset speed, opening the pressure release valve (2);
otherwise, the pressure relief valve (2) is not opened.
2. The method for controlling a motor vehicle body pressure relief valve according to claim 1, wherein obtaining said door closing speed comprises the steps of:
arranging a first sensor (3) at the door lock (10), arranging a second sensor (4) on the vehicle door (1), wherein the second sensor (4) is positioned on the connecting line of all hinges (11) of the vehicle door (1), and the connecting line of the second sensor (4) and the first sensor (3) is parallel to the horizontal plane;
acquiring the distance between the second sensor (4) and the first sensor (3) and the rotation angle of the first sensor (3);
and acquiring the rotating speed of the first sensor (3) according to the distance, the rotating angle and the rotating duration of the first sensor (3), and taking the rotating speed as the door closing speed.
3. The control method of a motor vehicle body pressure relief valve according to claim 2, wherein the step of obtaining the rotation speed of the first sensor (3) comprises the following steps:
acquiring the arc length of the rotating track of the first sensor (3) according to the distance and the rotating angle;
and acquiring the rotating speed of the first sensor (3) according to the arc length and the rotating time length of the first sensor (3).
4. The control method of the automotive body pressure relief valve according to claim 1, wherein acquiring the on-off state of the door lock (10) specifically comprises the steps of:
-providing a first sensor (3) at the door lock (10);
judging the opening and closing state of the door lock (10) according to the compression amount of the first sensor (3);
if the compression amount is not less than the preset compression amount, judging that the door lock (10) is closed;
otherwise, the door lock (10) is judged to be opened.
5. The method for controlling a motor vehicle body pressure relief valve according to claim 1, further comprising, after opening said pressure relief valve (2), the steps of:
the method comprises the steps of periodically collecting the opening and closing state of the door lock (10), and judging whether the door lock (10) is closed or not according to the opening and closing state;
if the door lock (10) is closed, closing the pressure relief valve (2);
otherwise, keeping the pressure relief valve (2) open.
6. The method of controlling an automotive body pressure relief valve according to claim 1 wherein said preset speed is not less than 1.2 m/s.
7. A control system for an automotive body pressure relief valve, comprising:
the acquisition device is used for acquiring the opening and closing state of a door lock (10) of the vehicle door (1) and the closing speed of the vehicle door (1) when a user opens the vehicle door (1) to get off and then closes the vehicle door (1);
and the control device is connected with the acquisition device and used for judging whether to open the pressure release valve (2) according to the opening and closing state and the door closing speed.
8. The control system for an automotive body pressure relief valve according to claim 7, wherein said pick-up means comprises:
the first sensor (3) is arranged at the door lock (10) and is used for collecting the opening and closing state;
the second sensor (4) is arranged on the vehicle door (1), the second sensor (4) is positioned on the connecting line of all hinges (11) of the vehicle door (1), and the connecting line of the second sensor (4) and the first sensor (3) is parallel to the horizontal plane; the second sensor (4) is used for acquiring the distance between the second sensor and the first sensor (3) and the rotation angle of the first sensor (3);
and the control device is used for acquiring the rotating speed of the first sensor (3) according to the distance, the rotating angle and the rotating duration of the first sensor (3), and taking the rotating speed as the door closing speed.
9. The control system of a motor vehicle body pressure relief valve according to claim 7, characterized in that said pressure relief valve (2) comprises:
a valve body (20) having a pressure relief passage (23);
a valve plate (21) provided on the valve body (20);
and the driver (22) is connected with the valve plate (21) and is used for driving the valve plate (21) to rotate so as to open and close the valve plate (21) on the pressure relief channel (23).
10. The control system for an automotive body relief valve according to claim 9, wherein said actuator (22) comprises:
a rotating shaft (220) connected with the valve plate (21);
and the motor (221) is connected with the rotating shaft (220) and is used for driving the rotating shaft (220) to rotate so as to drive the valve plate (21) to rotate.
CN202111008897.9A 2021-08-31 2021-08-31 Control method and system for automobile body pressure relief valve Pending CN113757395A (en)

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Application Number Priority Date Filing Date Title
CN202111008897.9A CN113757395A (en) 2021-08-31 2021-08-31 Control method and system for automobile body pressure relief valve

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Application Number Priority Date Filing Date Title
CN202111008897.9A CN113757395A (en) 2021-08-31 2021-08-31 Control method and system for automobile body pressure relief valve

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Publication Number Publication Date
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