Automobile electric door lock control method and system and automobile

Abstract

The application belongs to the technical field of automobile control, and discloses an automobile electric door lock control method, system and automobile, which comprises a vehicle body control system receiving a vehicle mode state signal and a power mode state signal; if a collision signal is sent by an airbag control system, six accelerations of a vehicle sent by a vehicle body electronic stability control system or an intelligent driving control system are greater than a threshold 1, six lateral roll angles of the vehicle sent by the intelligent driving control system are greater than a threshold 2, and six lateral roll angular velocities of the vehicle sent by the intelligent driving control system are greater than a threshold 3, the vehicle body control system judges that the vehicle has collided, and sets a vehicle state to an unlocking state; if a switch signal outside a door is detected to be valid, the vehicle body control system sends an unlocking instruction to a door lock control system, and the door lock control system drives a motor to automatically open the electric door. The application judges that the vehicle has collided through multiple ways, and maximally avoids that the vehicle door cannot be opened after the vehicle collision.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobiles, and particularly relates to an automobile electric door lock control method and system and an automobile. BACKGROUND

[0002] With the increasing degree of electrification of automobiles, the proportion of electric doors on vehicles is also increasing, but electric doors have the risk of being unable to open after a vehicle collision.

[0003] Chinese patent CN202211452555.0 automobile collision door lock unlocking system, method, electronic device and electric vehicle relates to the technical field of computer control, in order to solve the problem of automatic unlocking of the door lock when the vehicle collides and loses power, an automobile collision door lock unlocking system is proposed, which comprises: a backup power supply; an inertial block, the inertial block is installed in the outer handle base; a torsional spring, the torsional spring is connected with the inertial block; a micro switch, the micro switch is installed in the outer handle base; a control unit, the control unit is connected with the micro switch and the backup power supply; when the collision acceleration of the automobile is greater than the collision threshold, the inertial block rotates and presses the micro switch; after the micro switch is pressed by the inertial block, a collision signal is sent to the control unit; the control unit controls the backup power supply to supply power to the door lock for unlocking according to the collision signal. The above-mentioned automobile collision door lock unlocking system has the following problems, (1) the inertial fast device on the automobile outer handle is difficult to calibrate, and the accuracy is low; (2) after the collision, the door is directly unlocked, the door is opened, which is easy to cause the passengers in the vehicle to be thrown out of the vehicle compartment and suffer secondary injury, which does not meet the requirements of 4.2.3 in national standard GB11551 "Passenger Protection in Automobile Frontal Collision" that the door shall not be opened. SUMMARY

[0004] In order to better solve the above problems, the application provides an automobile electric door lock control method, which comprises the following steps:

[0005] S11: The vehicle body control system receives the vehicle mode state signal fed back by the vehicle mode control system and the power supply mode state signal fed back by the power supply mode control system;

[0006] S12: When the vehicle is in the user mode and the power supply state is switched from the ON mode to the OFF mode, if the airbag control system sends a collision signal to the vehicle body control system || the vehicle body electronic stability control system or the intelligent driving control system sends six acceleration values of the vehicle > threshold 1 || the intelligent driving control system sends six lateral angles of the vehicle > threshold 2 || the intelligent driving control system sends six lateral angular velocities of the vehicle > threshold 3;

[0007] S13: The vehicle body control system judges that the vehicle has collided and sets the vehicle state to the unlocking state.

[0008] S14: If the vehicle body control system detects that the switch signal of the outside of the door feedback by the inside and outside door switch system is valid, the vehicle body control system sends an unlocking instruction to the door lock control system, and the door lock control system drives the motor to realize automatic opening of the electric door.

[0009] Further, before the S11 step, further comprising:

[0010] S10: Set a vehicle main power supply system and a vehicle backup power supply system, and the vehicle main power supply system and the vehicle backup power supply system supply power to the vehicle body control system, the vehicle mode control system, the airbag control system, the vehicle body electronic stability control system, the intelligent driving control system, the door lock control system and the inside and outside door switch system at the same time.

[0011] Further, the vehicle main power supply system and the vehicle backup power supply system are arranged at the front and rear positions of the vehicle respectively.

[0012] Further, the vehicle main power supply system and the vehicle backup power supply system are arranged outside and inside the cockpit respectively.

[0013] Further, the S14 step further comprises: if the vehicle body control system detects that the switch signal of the outside of the door feedback by the inside and outside door switch system is invalid or the electric door cannot be automatically opened, the outside handle in the hidden state is pressed, the outside handle is popped out, the outside handle is connected to the electric door lock bolt through the wire drawing, the outside handle is pulled, and the electric door is opened.

[0014] Further, the S13 step specifically comprises:

[0015] S131: The vehicle body control system judges that the vehicle has a collision;

[0016] S132: The vehicle body control system judges that the vehicle speed is lower than the threshold 4 through the vehicle speed sensor;

[0017] S133: The vehicle body control system sets the vehicle state to the unlocking state.

[0018] Further, after the S14 step, the following steps are further included:

[0019] S15: The door lock control system feeds back the state signal of the door to the vehicle body control system, and if the electric door is not automatically opened, the vehicle central control screen and the vehicle audio system issue a manual opening door sound and light reminder.

[0020] The application also provides an electric door lock control method of an automobile, in particular an electric door lock control method of an automobile when the vehicle has no collision, comprising the following steps:

[0021] S21: When the vehicle is in the user mode, the vehicle power supply mode is in any state, the vehicle body control system receives the central control unlocking control signal or the vehicle power supply mode is in the OFF gear, and the vehicle body control system receives the unlocking control signal provided by the remote unlocking and locking system;

[0022] S22: The vehicle body control system sets the vehicle state to the unlocking state;

[0023] S23: Press the door lock control switch on the inner door panel or the outer door panel;

[0024] S24: Determine whether there is an obstacle outside the door through the photoelectric sensor;

[0025] S25: If there is no obstacle outside the door, the vehicle body control system sends an unlocking instruction to the door lock control system, and the door lock control system drives the motor to automatically open the electric door; if there is an obstacle outside the door, the vehicle body control system does not send an unlocking instruction to the door lock control system, and the vehicle central control screen and the vehicle audio system issue a sound and light reminder that there is an obstacle outside the door;

[0026] S26: The door lock control system feeds back the door opening state signal to the vehicle body control system.

[0027] The application also provides an electric door lock control system of an automobile, which comprises a processor, wherein the processor comprises a vehicle body control system, a vehicle mode control system, a power supply mode control system, an inner and outer door switch system, a door lock control system, the processor further comprises a safety airbag control system, and / or a vehicle electronic stability control system, and / or an intelligent driving control system; and the processor is used for running a program, wherein the program performs the above-mentioned electric door lock control method of the automobile when running.

[0028] The application also provides an automobile comprising the above-mentioned electric door lock control system.

[0029] Compared with the prior art, the application has the following beneficial effects:

[0030] (1) The control of the electric door lock is realized through software strategies without increasing the hardware cost, and the control strategies can adapt to different configurations of vehicle models by judging the vehicle collision through multiple ways, as long as any one of the safety airbag control system, the vehicle electronic stability control system or the intelligent driving control system is configured on the vehicle, the above-mentioned function can be realized.

[0031] (2) The opening door function failure problem caused by power failure after the vehicle collision is avoided. Through the setting of the vehicle main power supply system and the backup power supply system, the opening door function failure problem caused by power failure after the vehicle collision is solved, and the situation that the people in the vehicle are trapped in the vehicle and cannot escape due to the failure of the electric door of the vehicle is avoided.

[0032] (3) Multiple strategy to ensure that the electric door can be opened when collision. In extreme cases, the main power supply system and the backup power supply system are not enough to support the subsequent opening of the door through the inside or outside of the door switch, and the rescuer can open the door through the outside handle in the hidden state of the outside of the door provided by the application.

[0033] (4) Avoiding the electric door from being opened randomly when collision, which causes the person in the vehicle to be thrown out of the vehicle and suffer secondary injury. The vehicle body control system sets the vehicle state to the unlocked state only when the vehicle speed is lower than the threshold value 4 after judging that the vehicle has collided.

[0034] (5) When the vehicle is in normal use, avoid the damage to the vehicle caused by the obstruction outside the door during the opening process of the electric door. The vehicle body control system does not send an unlock instruction to the door lock control system if there is an obstruction outside the door, and the vehicle central control screen and vehicle audio system issue a sound and light reminder that there is an obstruction outside the door. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only part of the embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0036] Figure 1 The electric door lock control method of the automobile when collision is provided for embodiment 1 of the present application;

[0037] Figure 2 The electric door lock control method of the automobile when collision is provided for embodiment 2 of the present application;

[0038] Figure 3 The electric door lock control method of the automobile when normal use is provided for embodiment 3 of the present application;

[0039] Figure 4 The electric door lock control system of the automobile is provided for embodiments 1-3 of the present application. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with the drawings and embodiments. Obviously, the specific embodiments described here are only used to explain the present application, and are part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] It should be noted that if the embodiments of the present invention involve descriptions such as "first," "second," and "third," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," and "third" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0042] Example 1:

[0043] Figure 1 The diagram shown is a flowchart of a first embodiment of the electric door lock control method for a car collision provided by the present invention. The flowchart specifically includes:

[0044] S11: The body control system receives vehicle mode status signals from the vehicle mode control system and power mode status signals from the power mode control system. Specifically, vehicle mode status signals include user mode, showroom mode, factory mode, transportation mode, etc., and power mode status signals include OFF / ACC / ON positions, etc.

[0045] S12: When the vehicle is in user mode and the power status is switched from ON to OFF, if the airbag control system sends a collision signal to the vehicle control system || the vehicle's six-axis acceleration sent by the electronic stability control system or intelligent driving control system is greater than threshold 1 || the vehicle's six-axis roll angle sent by the intelligent driving control system is greater than threshold 2 || the vehicle's six-axis roll angular velocity sent by the intelligent driving control system is greater than threshold 3. Specifically, the settings of threshold 1, threshold 2, and threshold 3 are designed according to vehicle type, volume, weight, and other indicators.

[0046] S13: The vehicle control system determines that a collision has occurred and sets the vehicle status to unlocked.

[0047] S14: If the vehicle body control system detects that the switch signal from the exterior door of the interior and exterior door switch systems is valid, the vehicle body control system sends an unlock command to the door lock control system. The door lock control system then drives the motor to automatically open the electric door. Specifically, at this time, the vehicle body control system only detects that the switch signal from the exterior door of the interior and exterior door switch systems is valid, i.e., it sends an unlock command to the door lock control system, and the door lock control system drives the motor to automatically open the electric door, without further checking whether the door lock control switch on the interior or exterior door has been manually pressed. This allows the electric door to open immediately, preventing situations where occupants are slow to react or unconscious due to a vehicle collision, thus avoiding delays in escape or rescue by outside personnel.

[0048] Example 2:

[0049] Figure 2 The diagram shown is a flowchart of a second embodiment of the electric door lock control method for a car collision provided by the present invention. The flowchart specifically includes:

[0050] S10: A main power system and a backup power system are configured for the vehicle. These systems simultaneously supply power to the body control system, vehicle mode control system, airbag control system, electronic stability control system, intelligent driving control system, door lock control system, and interior and exterior door opening and closing systems. The main power system serves as the primary power source for the vehicle, while the backup power system provides auxiliary power in case the main power system fails. The backup power system's power supply capacity and power output can be lower than the main power system. This ensures dual power supply for the electric door lock control systems while minimizing vehicle costs.

[0051] Furthermore, the vehicle's main power system and backup power system are located at the front and rear of the vehicle, respectively. This arrangement ensures that if a frontal or rearal collision causes a power outage in one power source, the other power source can continue to supply power normally.

[0052] Furthermore, the vehicle's main power system and backup power system are located outside and inside the driver's compartment, respectively. The engine compartment is preferred as the location outside the driver's compartment. This design ensures that if the vehicle falls into water or experiences a power outage outside the driver's compartment due to rain or snow, the backup power system can still function normally.

[0053] S11: The body control system receives vehicle mode status signals from the vehicle mode control system and power mode status signals from the power mode control system. Specifically, vehicle mode status signals include user mode, showroom mode, factory mode, transportation mode, etc., and power mode status signals include OFF / ACC / ON positions, etc.

[0054] S12: When the vehicle is in the user mode and the power state is switched from the ON mode to the OFF mode, if the airbag control system sends a collision signal to the body control system, or the vehicle six-axis acceleration sent by the body electronic stability control system or the intelligent driving control system is greater than threshold 1, or the vehicle six-axis roll angle sent by the intelligent driving control system is greater than threshold 2, or the vehicle six-axis roll angle speed sent by the intelligent driving control system is greater than threshold 3. Specifically, the set values of the threshold 1, threshold 2, and threshold 3 are designed according to the indicators such as vehicle type, volume, weight, etc.

[0055] S13: The body control system judges that the vehicle has collided, and sets the vehicle state to the unlocking state. S13 specifically includes: S131: The body control system judges that the vehicle has collided; S132: The body control system judges that the vehicle speed is lower than threshold 4 through the vehicle speed sensor; S133: The body control system sets the vehicle state to the unlocking state. Threshold 4 can be set to 3Km / h. At this time, even if the electric vehicle door is opened, it will not cause secondary damage caused by the person inside the vehicle being thrown out of the vehicle.

[0056] S14: If the body control system detects that the door outside switch signal fed back by the inside and outside door switch system is valid, the body control system sends an unlocking instruction to the door lock control system, and the door lock control system drives the motor to automatically open the electric door. Specifically, at this time, the body control system only detects that the door outside switch signal fed back by the inside and outside door switch system is valid, i.e. sends an unlocking instruction to the door lock control system, and the door lock control system drives the motor to automatically open the electric door, without further judging whether the door inside panel or the door outside door lock control switch is pressed manually. In this way, the electric vehicle door can be opened in the first time, avoiding the situation that the vehicle inside personnel delays escape or external personnel rescue due to the vehicle door not being opened in the first time because of delayed reaction or unclear consciousness caused by vehicle collision.

[0057] Further, S14 step further includes: If the body control system detects that the door outside switch signal fed back by the inside and outside door switch system is invalid or the electric door cannot be automatically opened, press the outside handle in the hidden state of the door, the outside handle pops out, the outside handle is connected to the electric door lock bolt through wire drawing, and the electric vehicle door is opened by pulling the outside handle. Specifically, when the vehicle has collided and the vehicle has been automatically forced to the unlocking state by the system, the outside handle in the hidden state of the door can only be popped out by pressing it. If the vehicle is normally used and the vehicle is in the locking state, the outside handle in the hidden state of the door cannot be popped out. Through such a setting, it can be ensured that in an extreme case, such as insufficient main power system and backup power system to support subsequent opening of the door through the inside or outside switch, rescue personnel can open the door through the physical structure. At the same time, when the vehicle is normally used and the vehicle is in the locking state, the electric vehicle door outside is prevented from being opened, which affects the privacy and safety of the vehicle inside personnel.

[0058] Further, after the step S14, there is further included S15: the door lock control system feeds back the state signal of the door to the vehicle body control system, and if the electric door is not automatically opened, the vehicle central control screen and the vehicle audio system issue a sound and light reminder for manually opening the door. Through such a setting, the vehicle occupants can be reminded to react as soon as possible, and leave the vehicle in which the collision occurs as soon as possible through pressing the door inner plate control switch or pulling the door switch or other methods such as breaking the window to save themselves.

[0059] Embodiment 3

[0060] Figure 3 Fig. 1 shows a flow chart of the electric door lock control method of the vehicle in normal use according to the present application, which specifically includes:

[0061] S21: When the vehicle is in the user mode and the vehicle power supply mode is in any state, the vehicle body control system receives the central control unlocking control signal or the unlocking control signal provided by the remote unlocking and locking system when the vehicle power supply mode is in the OFF gear. Specifically, the remote unlocking and locking system includes a Bluetooth key, a remote APP, a remote control key, etc.

[0062] S22: The vehicle body control system sets the vehicle state to the unlocking state.

[0063] S23: Pressing the door lock control switch on the door inner plate or the door outer side.

[0064] S24: Determining whether there is an obstruction outside the door by the photoelectric sensor.

[0065] S25: If there is no obstruction outside the door, the vehicle body control system sends an unlocking instruction to the door lock control system, and the door lock control system drives the motor to realize automatic opening of the electric door; if there is an obstruction outside the door, the vehicle body control system does not send an unlocking instruction to the door lock control system, and the vehicle central control screen and the vehicle audio system issue a sound and light reminder that there is an obstruction outside the door. Through such a setting, damage to the vehicle caused by the obstruction outside the door during the opening process of the electric vehicle door is avoided.

[0066] S26: The door lock control system feeds back the state signal of the door opening to the vehicle body control system. The vehicle body control system can send an instruction to the vehicle central control screen and the vehicle audio system according to the state signal of the door opening, so that the latter issues a sound and light reminder of the electric door opening.

[0067] Embodiment 4

[0068] Figure 4 Fig. 2 shows the electric door lock control system of the vehicle according to the present application, which can be used to realize the electric door lock control method of the vehicle in the above embodiments 1-3.

[0069] The control system comprises a processor, the processor comprises a vehicle body control system, a vehicle mode control system, a power supply mode control system, an inside and outside door switch system, a door lock control system, the processor further comprises an airbag control system, and / or a vehicle electronic stability control system, and / or an intelligent driving control system; in addition, the processor further comprises a central control unlocking / locking control system, and the processor can further comprise a vehicle central control screen and a vehicle audio and video system Figure 4 Not shown.

[0070] The processor is used for running a program, wherein the program performs the automobile electric door lock control method of the above-mentioned embodiments 1-3 when running.

[0071] The automobile electric door lock control system provided by the embodiment is used for supplying power to the vehicle body control system, the vehicle mode control system, the airbag control system, the vehicle electronic stability control system, the intelligent driving control system, the door lock control system, the inside and outside door switch system, the central control unlocking / locking control system, and the like.

[0072] The vehicle mode control system feeds back the vehicle mode state to the vehicle body control system, the power supply mode control system feeds back the power supply mode state to the vehicle body control system, the central control unlocking / locking control system feeds back the central control unlocking / locking control signal to the vehicle body control system, the inside and outside door switch system is used for judging whether a user inside / outside the vehicle has a door opening / closing demand, and is used for feeding back the door handle switch state to the vehicle body control system, the door lock control system feeds back the door state and the unlocking / locking instruction feedback signal to the vehicle body control system, and the vehicle body control system sends the unlocking / locking instruction to the door lock control system according to needs.

[0073] In addition, the vehicle mode control system further comprises the airbag control system, which is used for feeding back the collision signal to the vehicle body control system, and / or the vehicle electronic stability / control system, which is used for feeding back the vehicle six-direction acceleration information and the vehicle speed information to the vehicle body control system, and / or the intelligent driving control system, which is used for feeding back the vehicle six-direction acceleration information, the vehicle six-direction inclination angle information and the vehicle six-direction inclination angular velocity information to the vehicle body control system.

[0074] According to another aspect of the embodiment, the application further provides an automobile with the above-mentioned electric door lock control system.

[0075] The above-mentioned embodiments only express the preferred implementation manners of the application, the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent scope of the application. It should be noted that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A method for controlling an electric door lock in an automobile, characterized in that, Includes the following steps: S11: The body control system receives vehicle mode status signals from the vehicle mode control system and power mode status signals from the power mode control system; the vehicle mode status signals include user mode, showroom mode, factory mode, and transportation mode, and the power mode status includes OFF / ACC / ON positions. S12: When the vehicle is in user mode and the power status is switched from ON to OFF, if the airbag control system sends a collision signal to the vehicle control system || the vehicle's six-axis acceleration sent by the electronic stability control system or intelligent driving control system is greater than threshold 1 || the vehicle's six-axis roll angle sent by the intelligent driving control system is greater than threshold 2 || the vehicle's six-axis roll angular velocity sent by the intelligent driving control system is greater than threshold 3. S13: The vehicle control system determines that a collision has occurred; the vehicle control system determines that the vehicle speed is below the threshold of 4 using the vehicle speed sensor; the vehicle control system sets the vehicle status to unlocked. S14: If the vehicle body control system detects that the switch signal on the outside of the door fed back by the vehicle interior and exterior door switch system is valid, the vehicle body control system sends an unlocking command to the door lock control system, and the door lock control system drives the motor to realize the automatic opening of the electric door; if the vehicle body control system detects that the switch signal on the outside of the door fed back by the vehicle interior and exterior door switch system is invalid or the electric door cannot be opened automatically, press the outer handle in the hidden state outside the door, the outer handle pops out, the outer handle is connected to the electric door lock tongue through the pull wire, and the electric door is opened by pulling the outer handle.

2. The method for controlling an electric door lock for an automobile according to claim 1, characterized in that, The following steps are included before step S11: S10: Set up a vehicle main power system and a vehicle backup power system, wherein the vehicle main power system and the vehicle backup power system simultaneously supply power to the vehicle body control system, vehicle mode control system, airbag control system, vehicle electronic stability control system, intelligent driving control system, door lock control system, and vehicle interior and exterior door opening and closing system.

3. The method for controlling an electric door lock for an automobile according to claim 2, characterized in that, The vehicle's main power system and backup power system are located at the front and rear of the vehicle, respectively.

4. The method for controlling an electric door lock for an automobile according to claim 3, characterized in that, The vehicle's main power system and backup power system are located outside the driver's cab and inside the driver's cab, respectively.

5. The method for controlling an electric door lock for an automobile according to claim 3, characterized in that, After step S14, The process includes the following steps: S15: The door lock control system feeds back the door status signal to the vehicle body control system. If the electric door does not open automatically, the vehicle's central control screen and vehicle audio-visual system will issue a manual door opening sound and light reminder.

6. A car electric door lock control system, characterized in that, The system includes: a processor, which includes a body control system, a vehicle mode control system, a power mode control system, an interior and exterior door opening and closing system, and a door lock control system; the processor also includes an airbag control system, and / or an electronic stability control system, and / or an intelligent driving control system; the processor is used to run a program, wherein the program executes the electric door lock control method of any one of claims 1 to 5 when it runs.

7. A car, characterized in that, Including the electric door lock control system as described in claim 6.

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