CN116065905A - Vehicle door control system and method - Google Patents

Abstract

The invention provides a vehicle door control system and a vehicle door control method, which are improved on the basis of automatic locking and automatic unlocking of the existing vehicle door through signal judgment of a vehicle speed sensor and a collision sensor, and adopt a full stack type signal instruction to control the state, so that more reasonable, accurate and humanized vehicle door system locking and unlocking processes are realized, and the safety in the driving process is improved.

Description

Vehicle door control system and method

Technical Field

The invention belongs to the technical field of automobile safety and automobile doors, and particularly relates to an automobile door control technology.

Background

With the increasing of national economy level, the Chinese automobile conservation amount is rapidly improved, and according to the statistics of automobile industry association, the 2021 Chinese automobile conservation amount reaches 3.02 hundred million, and is increased by 7.47% compared with the 2020 homonymy, and the proportion is estimated to be expected to be further improved in the future. However, as automobiles continue to spread, more and more traffic safety issues have also attracted attention and concern to vehicle enterprises and users.

The difficulty in opening the door when the door is opened by mistake and an accident occurs is often a safety risk point which is easy to be ignored by a vehicle enterprise and a user. The traditional vehicle realizes automatic locking of the vehicle door by taking the vehicle speed reaching 20Km/h as a judgment standard so as to prevent the vehicle door from being opened by mistake; the automatic unlocking of the door lock is realized by taking the ejection of the safety airbag as a judging standard, so that the door is difficult to open when an accident occurs. Although the existing automatic locking and automatic unlocking control modes of the vehicle door can reduce the risk of accidents to a certain extent, a plurality of defects and shortcomings still exist in the practical application process. For example, children riding in the rear row can trigger the door to unlock and open mechanically by pulling the inner door handle twice continuously, and the main driver user can pay attention to the vehicle-driving unnoticed instrument to display the indication that the door is not closed/abnormal or is noticed but not blocked, so that accidents are caused; for another example, the vehicle collides, but the door lock fails to be quickly unlocked because the airbag does not reach the ejection standard, thereby bringing life and property safety.

Door control is an important technical branch of automobile safety, and from the safety point of view, the door should be prohibited from being opened during running of the automobile, and if the automobile collides, the door should be unlocked as soon as possible so that the door can be opened automatically. In the prior art, various schemes for opening or automatically opening the vehicle door are available, for example, patent literature reports that a vehicle door opening forbidding prompt system based on blind area detection comprises a power circuit, a fuse, a distance detection circuit, a main control unit, a screen and a buzzer; the power supply circuit is connected with the fuse, and the main control unit is respectively connected with the distance detection circuit, the fuse, the screen and the buzzer. When the system scheme is implemented, the distance detection circuit measures the distance information of the vehicle, the distance information is displayed on a screen through the main control unit, if the distance exceeds 4 meters, the buzzer gives an alarm, and meanwhile, the entrance guard of the vehicle is judged. The system mainly solves the problem of door opening prompt of the vehicle and solves the problem of safety or early warning of the vehicle when the vehicle is opened or closed based on the blind zone detection result. As another example, patent literature "a system and a method for automatically opening a vehicle door based on face image tracking recognition", which includes an acquisition module, a storage module, a processing module, a comparison module, and a vehicle door control module. The acquisition device is arranged on a side door of a driver to acquire images or sounds of a door opener, detect feature vectors in face images, match a plurality of images or sound reference vectors prestored in the storage module, enable the door to be automatically opened by controlling the door control module when a matching result meets a preset door opening right, enable the image of the door opener to be recorded when the matching result does not meet the opening right, and send prompt and alarm information to intelligent equipment bound by a vehicle owner after the door is illegally opened. The method is mainly used for realizing automatic opening of the vehicle door based on face recognition and improving convenience of opening the door.

The prior art above has still had room for improvement in the forbidden opening and automatic unlocking of the door system.

The invention comprises the following steps:

the invention aims to provide a vehicle door control system and a vehicle door control method, which are improved on the basis of automatic locking and automatic unlocking of the existing vehicle door through signal judgment of a vehicle speed sensor and a collision sensor, so that more reasonable, accurate and humanized opening and automatic unlocking processes of a vehicle door system are realized, and the safety in the driving process is further improved.

In order to achieve the above purpose, the invention adopts the following technical scheme:

in a first aspect, the present invention provides a vehicle door control system that includes a vehicle speed sensor, a vehicle body domain control module, a door lock module, a door handle sensor, a HU vehicle control module, and a vehicle microphone module.

The vehicle speed sensor is used for monitoring the vehicle speed and transmitting a vehicle speed signal to the whole vehicle CAN.

The automobile body domain control module is used for receiving signals from the whole automobile CAN and analyzing and judging, and is connected with the automobile door lock module and used for controlling locking, unlocking and locking operations and reminding of the automobile door lock; when the vehicle speed reaches a threshold value N1, a forbidden opening instruction is sent out, and the door lock is controlled to be automatically switched from a locking state to a locking state; the car body domain control module sends out a prompt when a car door opening request is obtained, and sends out an unlocking instruction when user instruction information is obtained to judge that a user needs to temporarily open the car door, so that the car door lock is controlled to be automatically switched from a locking state to an unlocking state.

The door lock module is used for realizing locking, unlocking and locking operations of the door lock and feeding back instruction information of locking or unlocking the door lock in place to the whole vehicle CAN.

The HU car machine control module is used for receiving information instructions, analyzing and judging, and outputting the information instructions to the central control display screen and the car machine power amplifier to realize display prompt and voice prompt.

And the vehicle-mounted microphone module is connected with the vehicle-mounted control module and is used for inputting user instruction information.

Further, the vehicle collision monitoring system also comprises a collision sensor which is used for monitoring whether the vehicle collides and transmitting a vehicle collision signal to the whole vehicle CAN.

The car body domain control module is also used for controlling the automatic opening of the car door, and when a car collision signal is detected, the car door lock is controlled to be switched from a locking state or a locking state to an unlocking state; and after the door lock is unlocked in place, the feedback information is transmitted to the whole vehicle CAN.

The HU car machine control module is further used for controlling the reminding of the unlocked state of the car door after receiving the command signal for unlocking the car door in place.

Further, the intelligent atmosphere lamp further comprises a reminding module which is used for carrying out atmosphere lamp color and/or flashing reminding, displaying reminding, voice reminding and the like.

In a second aspect, the present invention also provides a vehicle door control method, including:

when the vehicle speed reaches the threshold value N1 in the running process of the vehicle, the door lock is controlled to be automatically switched from the locking state to the locking state, and a locking in-place signal is fed back.

And controlling the running door access opening state to display and remind according to the in-place locking signal of the vehicle door.

When the door is in a forbidden open state, an open intention signal generated by pulling the door handle on the inner side of the car door is monitored, and the reminding of the entrance guard open state of the car is controlled, wherein the reminding comprises an atmosphere lamp color and/or a flashing prompt, a display prompt and a voice prompt.

When the door is in a forbidden open state, a user inputs a door opening intention signal through voice, and the door lock is controlled to be automatically switched from a locking state to an unlocking state; and after the door lock is unlocked in place, the feedback unlocking signal is fed back, and the HU car machine control module controls the car center control display screen to prompt the unlocked state of the car door according to the car door unlocking in place signal.

Further, the automatic opening control of the vehicle door is also included, including:

when a vehicle collision signal is detected, the door lock is controlled to be switched from a locking state or a locking state to an unlocking state.

And after the door lock is unlocked in place, the feedback information is transmitted to the whole vehicle CAN.

After receiving the command signal for unlocking the vehicle door in place, the HU vehicle control module controls the prompt of the unlocked state of the vehicle door, wherein the prompt comprises a display prompt and a voice prompt.

The invention has the advantages that:

(1) the invention further improves the safety function and logic of the existing vehicle door, realizes more reasonable, accurate and humanized vehicle door system forbidding and automatic unlocking processes through signal judgment of the vehicle speed sensor and the collision sensor, further improves the safety in the driving process, and greatly improves the driving safety and hidden danger.

(2) The traditional vehicle door system locks and unlocks the vehicle door through a mechanical way, and the invention adopts the full stack type signal instruction to control the state, so that the intelligent development of the full hug is realized, and the development trend of the cooperation of traditional hardware and the steering software is met.

Description of the drawings:

FIG. 1 is a schematic diagram of a door control system of the present invention;

FIG. 2 is a flow chart of the door opening control of the vehicle in the present invention.

Fig. 3 is a flow chart of the door automatic opening control in the present invention.

The specific embodiment is as follows:

in order to make the objects, technical solutions and advantages of the present invention more apparent, the patent of the present invention will be further described with reference to the accompanying drawings. It should be noted that various changes, modifications, substitutions and alterations can be made by those skilled in the art without departing from the inventive concepts herein, and that the scope of the invention is defined by the appended claims and their equivalents.

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, the vehicle door control system includes a vehicle speed sensor 1, a position sensor 2, a vehicle door handle sensor 3, a collision sensor 4, a vehicle CAN network 5, a vehicle body domain control module 6, a left front door lock 7, a right front door lock 8, a left rear door lock 9, a right rear door lock 10, a left front door atmosphere lamp 11, a right front door atmosphere lamp 12, a left rear door atmosphere lamp 13, a right rear door atmosphere lamp 14, a vehicle microphone 15, a HU vehicle control module 16, a center control display screen display 17, a vehicle power amplifier 18, and the like.

The door control mainly relates to two aspects of forbidden opening control and automatic opening control, and is used for controlling door opening of a vehicle:

the vehicle speed sensor 1 is used for monitoring the running speed of the vehicle and transmitting a vehicle speed command signal to the whole vehicle CAN.

The body domain control module 6 is used for receiving the signal instruction and analyzing/judging. Further, the car body domain control module 6 is connected with the car door lock module 7-10 and the atmosphere lamp reminding module 11-14, and is used for controlling operations such as locking, unlocking and locking of the four car door locks and the atmosphere lamp reminding.

The door lock modules 7-10 are used for realizing locking, unlocking, locking and other operations of four door locks.

The door handle sensor 3 is used to monitor a door opening request.

The atmosphere lamp reminding module 11-14 is used for reminding a user through color and flickering change of the atmosphere lamp;

the HU car machine control module 16 is used for receiving information instruction, analyzing/judging, and outputting to the central control display screen 17 and the car machine power amplifier 18 to realize display prompt and voice prompt.

Further, the vehicle control module 6 is connected to a vehicle microphone 15, and the vehicle microphone 15 is used for inputting user command information.

On the other hand, for the automatic door opening control, a vehicle collision module is also required to be used, and the vehicle collision module is used for monitoring whether a vehicle collides or not and transmitting a vehicle collision command signal to the whole vehicle CAN network.

Specifically, the crash sensors 4 are employed, which are disposed in the left front, left rear, right front, right rear, front center, rear center, front-rear, left-right, and right-left doors of the vehicle, respectively. Further, the left front, right front and front center collision sensors are arranged on the left, middle and right sides of a front bumper of the vehicle; the left rear, right rear and rear center collision sensors are arranged on the left, middle and right sides of a rear bumper of the vehicle. The car door collision sensors are respectively arranged on the front car door and the rear car door, and each car door is respectively arranged on the left side and the right side, and 14 collision sensors are added.

Referring to fig. 2, the embodiment specifically shows a flow of door forbidden control, including the following steps:

and step 1, after the vehicle starts, the vehicle speed sensor 1 monitors the running speed of the vehicle in real time and transmits instruction information to the whole vehicle CAN network 5.

And 2, the vehicle body domain control module 6 acquires the vehicle speed instruction information on the whole vehicle CAN network 5 and analyzes/judges the vehicle speed instruction information.

When the running speed of the vehicle reaches the threshold N1, N1 is a set value, in this embodiment, n1=30km/h is set, and the vehicle body domain control module 6 transmits instruction information to the vehicle door lock module, that is, the left front door lock 7, the right front door lock 8, the left rear door lock 9, and the right rear door lock 10, and the vehicle door lock is automatically switched from the locking state to the locking state. Further, the door lock feeds back the locked in-place instruction information to the whole vehicle CAN network 5, where the locked in-place instruction information is obtained by the position sensor 2 at the locking end.

And 3, the HU car machine control module 16 receives an instruction signal for locking a car door in place on the whole car CAN network 5, and pops a window on the car-mounted display screen 17 to prompt that the car door is in a forbidden state for a duration of 2s.

And step 4, if the door handle sensor 3 (here, the door handle is the door inside handle) detects that the user has the intention to open the door, the system transmits instruction information to the whole vehicle CAN network 5 at the first time. Further, the car body domain control module 6 obtains instruction information on the whole car CAN network 5 and transmits the instruction information to the atmosphere lamp reminding module, and at the moment, the atmosphere lamp reminding module on the car door trim panel displays red and flashes to prompt for 2s. Here, the atmosphere lamp alert module includes a left front door atmosphere lamp 11, a right front door atmosphere lamp 12, a left rear door atmosphere lamp 13, and a right rear door atmosphere lamp 14.

In step 5, the HU car machine control module 16 also obtains the instruction information of the user's door opening intention from the whole car CAN network 5, and transmits the instruction information to the car machine central control display screen 17 and the power amplifier system 18, and the display screen plays a window to prompt "please notice, door forbidden open-! ", duration 2s; meanwhile, the power amplification system 18 outputs a prompt of "door forbidden to open" for a duration of 2s.

Of course, when the door is opened, the user needs to temporarily open the door, and the user CAN input the command information through the vehicle microphone 15, for example, "small a, open the door", and transmit the command information to the HU car machine control module 16 for recognition processing, and transmit the command information to the whole car CAN network 5 after the processing is completed. Further, the car body domain control module 6 acquires instruction information from the whole car CAN and transmits the instruction information to the car door lock module, and the car door lock is automatically switched from a locking state to an unlocking state; after the door lock is unlocked in place, the position sensor 2 at the starting end feeds back a corresponding instruction signal to the whole vehicle CAN network 5.

Further, the HU car machine control module 16 obtains the instruction information of unlocking in place from the whole car CAN network 5, and transmits the instruction information to the car machine central control display screen 17 and the power amplifier system 18, and the display screen 17 plays a window to prompt' please notice, the car door is unlocked-! ", duration 2s; at the same time, the power amplifier system 18 voice outputs a prompt "door unlocked" for a duration of 2s.

Specifically, the locked state described in the above is such that the door cannot be mechanically unlocked and opened by conventional door inner door handles such as multiple pulls.

Referring to fig. 3, the embodiment specifically shows a method flow of automatic door opening control, including the following steps:

step 1, when an emergency such as a collision occurs during the running process of the vehicle, the vehicle collision sensor 4 transmits a command signal of the collision of the vehicle to the whole vehicle CAN at the first time.

And 2, the vehicle body domain control module 6 acquires instruction information from the whole vehicle CAN network 5 and transmits the instruction information to the vehicle door lock module, namely a left front door lock 7, a right front door lock 8, a left rear door lock 9 and a right rear door lock 10. Further, the door lock module is immediately switched from a locked state or a locked state to an unlocked state.

And 3, transmitting instruction information to the whole vehicle CAN network 5 at the first time after the door lock is unlocked in place (the position sensor 2 at the starting end of the lock).

And 4, the HU car machine control module 16 receives and processes a command signal for unlocking the car door in place on the whole car CAN network 5. Further, the popup window on the central control display screen 17 prompts collision reminding, the door lock is opened-! ", duration 2s; at the same time, the power amplifier system 18 voice outputs a prompt "door unlocked" for a duration of 2s.

Claims (5)

1. The vehicle door control system is characterized by comprising a vehicle speed sensor, a vehicle body domain control module, a vehicle door lock module, a vehicle door handle sensor, a HU vehicle machine control module and a vehicle microphone module;

the vehicle speed sensor is used for monitoring the vehicle speed and transmitting a vehicle speed signal to the whole vehicle CAN;

the automobile body domain control module is used for receiving signals from the whole automobile CAN and analyzing and judging, and is connected with the automobile door lock module and used for controlling locking, unlocking and locking operations and reminding of the automobile door lock; when the vehicle speed reaches a threshold value N1, an entrance guard opening instruction is sent out, and the door lock is controlled to be automatically switched from a locking state to a locking state; when a door opening request is obtained, a prompt is sent out, and when user instruction information is obtained and the user determines that the door is required to be opened temporarily, an unlocking instruction is sent out, and the door lock is controlled to be automatically switched from a locking state to an unlocking state;

the door lock module is used for realizing locking, unlocking and locking operations of the door lock and feeding back instruction information of locking or unlocking the door lock in place to the whole vehicle CAN;

the HU car machine control module is used for receiving the information instruction, analyzing and judging, and outputting the information instruction to the central control display screen and the car machine power amplifier to realize display prompt and voice prompt;

and the vehicle-mounted microphone module is connected with the HU car machine control module and is used for inputting user instruction information.

2. The vehicle door control system of claim 1, further comprising a crash sensor for monitoring whether a vehicle is crashed and transmitting a vehicle crash signal to the complete vehicle CAN;

the car body domain control module is also used for automatically opening and controlling a car door, and when a car collision signal is detected, the car door lock is controlled to be switched from a locking state or a locking state to an unlocking state; after the door lock is unlocked in place, feedback information is transmitted to the whole vehicle CAN;

the HU car machine control module is further used for controlling the reminding of the unlocked state of the car door after receiving the command signal for unlocking the car door in place.

3. The vehicle door control system of claim 1 or 2, further comprising a reminder module comprising an atmosphere light color and/or flashing reminder, a display reminder, a voice reminder.

4. A vehicle door control method, characterized by comprising:

when the vehicle speed reaches a threshold value N1 in the running process of the vehicle, controlling the door lock to be automatically switched from a locking state to a locking state, and feeding back a locking in-place signal;

controlling the running door access opening state to display reminding according to the in-place signal of the locking of the vehicle door;

when the door is in a forbidden open state, an open intention signal generated by pulling and buckling a door handle on the inner side of the door is monitored, and then the reminding of the entrance guard open state of the vehicle is controlled, wherein the reminding comprises an atmosphere lamp color and/or flashing reminding, a display reminding and a voice reminding;

when the door is in a forbidden open state, a user inputs a door opening intention signal through voice, and the door lock is controlled to be automatically switched from a locking state to an unlocking state; and after the door lock is unlocked in place, the feedback unlocking signal is fed back, and the HU car machine control module controls the car center control display screen to prompt the unlocked state of the car door according to the car door unlocking in place signal.

5. The method of claim 4, further comprising controlling automatic opening of the door, comprising:

when a vehicle collision signal is detected, controlling the door lock to be switched from a locking state or a locking state to an unlocking state;

after the door lock is unlocked in place, feedback information is transmitted to the whole vehicle CAN;

after receiving the command signal for unlocking the vehicle door in place, the HU vehicle control module controls the prompt of the unlocked state of the vehicle door, wherein the prompt comprises a display prompt and a voice prompt.

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