An intelligent door opening induction control system and its control method

Abstract

The present invention discloses an intelligent vehicle door opening induction control system and its control method, including a rear vehicle or obstacle detection module, a vehicle controller, a door controller, a door state detection module, and an alarm system; the present invention can, when the vehicle stops, judge and control the vehicle to enter different alarm control modes according to the lateral and longitudinal distances and acceleration conditions between the rear vehicle or obstacle and the vehicle itself. When the vehicle enters the secondary alarm control mode, through the one-way locking motor structure of the door, even when the door has been opened, it can prevent the door from continuing to open, avoiding greater danger.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle door opening control, and particularly relates to an intelligent vehicle door opening induction control system and a control method thereof. Background Art

[0002] With the continuous increase in the number of urban vehicles, urban roads have become increasingly congested. During the morning and evening traffic peaks in the city, in sections where vehicles are concentrated and congested (such as large units, schools, hospitals, etc.), there often appear scenarios of getting on and off vehicles emergently by the roadside.

[0003] When the passengers in the vehicle open the door to get off, due to limited vision or being distracted, they do not observe the vehicles or obstacles behind, which makes the passengers in a dangerous situation when opening the door. In the lightest case, it may cause property losses such as damage to vehicles, and in the most serious case, it may cause losses to people's lives and property.

[0004] Current vehicles do not have a complete control strategy for detecting oncoming vehicles from the side rear and emergency avoidance of the vehicle door.

[0005] In recent years, many platforms or vehicle manufacturers have successively launched vehicle door side obstacle opening systems and control methods. For example, in the patent with the application number 2017110818570, a vehicle door side obstacle opening damping system and a control method are provided. This system controls the opening resistance of the vehicle door by judging the distance between the vehicle and the obstacle. However, the deficiencies of this patent are as follows: 1. It cannot avoid the situation where the vehicle door collides with the side obstacle of the vehicle due to too large an opening force and too fast a speed of the vehicle door. 2. It lacks a control method for distinguishing the danger level and designing different vehicle control strategies according to different danger levels. Summary of the Invention

[0006] In order to solve the problems existing in the prior art, the present invention provides an intelligent vehicle door opening induction control system and a control method thereof, which can, when the vehicle stops, judge and control the whole vehicle to enter different alarm control modes according to the horizontal and vertical distances and acceleration conditions between the vehicle behind or the obstacle and the vehicle. When the whole vehicle enters the secondary alarm control mode, through the one-way locking motor structure of the vehicle door, even when the door has been opened, it can prevent the door from continuing to open and avoid causing greater danger.

[0007] The object of the present invention is achieved by the following technical solutions:

[0008] An intelligent vehicle door opening induction control system includes a rear vehicle or obstacle detection module, a vehicle controller, a vehicle door controller, a vehicle door state detection module, and an alarm system;

[0009] The rear vehicle or obstacle detection module is used to detect and process the state information of the rear vehicle or obstacle, and notify the vehicle controller of the information processing result;

[0010] The door status detection module is used to detect the door opening status information and the vehicle side status information, and send the detection results to the door controller and the vehicle controller;

[0011] The door controller is used to control the door locking or unlocking according to the information obtained by the door status detection module;

[0012] The vehicle controller controls the vehicle to enter the corresponding alarm control mode according to the information sent by the rear vehicle or obstacle detection module and the door controller, and sends the corresponding control command to the alarm system;

[0013] The alarm system executes the control command of the vehicle controller to perform the corresponding level of alarm operation.

[0014] Further, the rear vehicle or obstacle detection module includes a rearview camera, a detection radar, and an ADAS calculator;

[0015] The rearview camera and the detection radar are used to collect the rear vehicle status information and send it to the ADAS calculator;

[0016] The ADAS calculator is used to judge the door opening danger level of the vehicle according to the obtained rear vehicle status information, and send the judgment result to the vehicle controller.

[0017] Furthermore, the rear vehicle status information includes: the relative distance information between the rear vehicle and the vehicle and the longitudinal acceleration information of the rear vehicle.

[0018] Furthermore, the relative distance information includes longitudinal distance information and lateral distance information.

[0019] Further, the door status detection module includes an in - door handle sensor and a side sensor; the in - door handle sensor is used to detect the operation of the vehicle occupants to open the door; the side sensor is installed at the bottom of the vehicle's outside rearview mirror and is used to detect whether a rear vehicle enters the vehicle's dangerous area.

[0020] Further, the door controller is used to control the door shaft motor of the vehicle to perform door locking or unlocking operations.

[0021] Further, the alarm system includes a sound alarm system, a light alarm system, and a display alarm system; the sound alarm system and the display alarm system perform corresponding alarm operations respectively when the vehicle enters the first - level alarm control mode and the second - level alarm control mode; the light alarm system performs corresponding alarm operations when the vehicle enters the second - level alarm control mode.

[0022] Furthermore, when in the first - level alarm control mode, the sound alarm system gives a short prompt tone for alarm; when in the second - level alarm control mode, it gives a rapid prompt tone for alarm.

[0023] When in the first - level alarm control mode, the display alarm system displays the alarm content on the large vehicle screen; when in the second - level alarm control mode, it controls the instrument warning light to flash for alarm.

[0024] When in the second - level alarm control mode, the light alarm system activates the whole - vehicle hazard warning light to flash.

[0025] The present invention also provides an intelligent door opening induction control method, including the following steps:

[0026] S1. When the vehicle speed of the vehicle is less than the vehicle - speed threshold, the vehicle controller notifies the rear - vehicle or obstacle detection module to start information collection.

[0027] S2. The rear - vehicle or obstacle detection module collects the longitudinal distance, lateral distance between the rear vehicle and the vehicle, and the longitudinal acceleration information of the rear vehicle.

[0028] S3. When the longitudinal distance between the rear vehicle and the vehicle reaches the distance threshold 1 and the lateral distance is less than the door - opening range threshold, the vehicle controller activates the first - level alarm control mode and sends a first - level alarm control command to the alarm system.

[0029] S4. The alarm system responds to the first - level alarm control command and performs the alarm operation.

[0030] S5. When the longitudinal distance between the rear vehicle and the vehicle reaches the distance threshold 2, the vehicle controller sends a control command to the door controller.

[0031] S6. The door - state detection module obtains the door - opening state information of the vehicle and the information of the side vehicle or obstacle.

[0032] S7. When it is detected that the vehicle occupants operate the interior door handle and the rear vehicle enters the side - dangerous area of the vehicle, the door controller sends a control command to the door locking device, and at the same time the vehicle controller activates the second - level alarm control mode.

[0033] S8. The door locking device controls the door to lock, and the alarm system responds to the second - level alarm control command and performs the alarm operation.

[0034] S9. When the rear vehicle drives out of the dangerous area, the door controller sends an unlocking control command to the door locking device, and at the same time the vehicle controller cancels the second - level alarm control mode.

[0035] Further, when the whole vehicle enters the first-level alarm control mode: the sound alarm system gives a short beeping alarm, and the display alarm system shows the alarm content on the vehicle's large screen to prompt the passengers inside the vehicle that there is a vehicle approaching from behind; when the whole vehicle enters the second-level alarm control mode: the sound alarm system gives a rapid beeping alarm; the light alarm system activates the flashing function of the vehicle's hazard warning lights; the display alarm system controls the instrument warning lights to flash for alarm.

[0036] The present invention has the following advantages:

[0037] The present invention proposes a vehicle-level control strategy, providing a second-level alarm control mode: when the vehicle behind or the obstacle is at a relatively long distance, the first-level alarm control strategy is activated; when the vehicle behind or the obstacle gets closer and the passengers inside the vehicle intend to operate the door to open, the second-level alarm control strategy is activated.

[0038] For the vehicle-level control strategy of the present invention, a second-level alarm control strategy is designed: the first-level alarm control strategy is sound prompt and display prompt on the in-vehicle large screen, which plays a primary prompting role without actual control response; the second-level alarm control strategy is sound prompt (more rapid and more warning), hazard warning light prompt to prompt the vehicle behind, instrument warning light prompt (accompanied by sound prompt), and at the same time, the second-level alarm control strategy will be accompanied by the door locking control of the whole vehicle.

[0039] The present invention proposes a control scheme for directly locking or unlocking the door after the second-level alarm control strategy is activated: when the vehicle enters the dangerous area and the passengers inside the vehicle intend to open the door or make an opening action, a locking command for the door locking device is issued, which directly and effectively protects the safety of personnel and the vehicle. When the vehicle leaves the dangerous area, an unlocking command for the door locking device is issued, which does not affect the normal operation of the passengers inside the vehicle on the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings to be used in the description of the embodiments of the present invention.

[0041] Figure 1 It is a block diagram of an intelligent door opening induction control system according to Embodiment 1 of the present invention;

[0042] Figure 2 It is a flowchart of an intelligent door opening induction control method according to Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following will further elaborate on the present invention in conjunction with the drawings and embodiments.

[0044] An intelligent vehicle door opening induction control system includes a rear vehicle or obstacle detection module, a vehicle controller, a door controller, a door state detection module, and an alarm system;

[0045] The rear vehicle or obstacle detection module is used to detect and process the state information of the rear vehicle or obstacle, and notify the vehicle controller of the information processing result;

[0046] The door state detection module is used to detect the door opening state information and the vehicle side state information, and send the detection results to the door controller and the vehicle controller;

[0047] The door controller is used to control the door locking or unlocking according to the information obtained by the door state detection module;

[0048] The vehicle controller controls the vehicle to enter the corresponding alarm control mode according to the information sent by the rear vehicle or obstacle detection module and the door controller, and sends the corresponding control command to the alarm system;

[0049] The alarm system executes the control command of the vehicle controller to perform the corresponding level of alarm operation.

[0050] Further, the rear vehicle or obstacle detection module includes a rear view camera, a detection radar, and an ADAS calculator;

[0051] The rear view camera and the detection radar are used to collect the state information of the rear vehicle and send it to the ADAS calculator;

[0052] The ADAS calculator is used to judge the danger level of the vehicle door opening of the vehicle according to the obtained state information of the rear vehicle, and send the judgment result to the vehicle controller.

[0053] Furthermore, the state information of the rear vehicle includes: the relative distance information between the rear vehicle and the vehicle and the longitudinal acceleration information of the rear vehicle.

[0054] Furthermore, the relative distance information includes longitudinal distance information and lateral distance information.

[0055] Further, the door state detection module includes an in - vehicle door handle sensor and a side sensor; the in - vehicle door handle sensor is used to detect the operation of the vehicle occupants to open the door; the side sensor is installed at the bottom of the vehicle's outside rearview mirror and is used to detect whether the rear vehicle enters the dangerous area of the vehicle.

[0056] Further, the door controller is used to control the door shaft motor of the vehicle to perform door locking or unlocking operations.

[0057] Further, the alarm system includes a sound alarm system, a light alarm system, and a display alarm system; the sound alarm system and the display alarm system perform corresponding alarm operations respectively when the vehicle enters the first-level alarm control mode and the second-level alarm control mode; the light alarm system performs corresponding alarm operations when the vehicle enters the second-level alarm control mode.

[0058] Furthermore, the sound alarm system gives a short prompt tone alarm in the first-level alarm control mode; and gives a rapid prompt tone alarm in the second-level alarm control mode.

[0059] The display alarm system displays alarm content on the vehicle's large screen in the first-level alarm control mode; and controls the instrument warning light to flash for alarm in the second-level alarm control mode.

[0060] The light alarm system starts the vehicle's hazard warning lights to flash in the second-level alarm control mode.

[0061] The present invention also provides an intelligent door opening induction control method, including the following steps:

[0062] S1. When the vehicle speed of the vehicle is less than the vehicle speed threshold, the vehicle controller notifies the rear vehicle or obstacle detection module to start information collection.

[0063] S2. The rear vehicle or obstacle detection module collects the longitudinal distance, lateral distance between the rear vehicle and the vehicle, and the longitudinal acceleration information of the rear vehicle.

[0064] S3. When the longitudinal distance between the rear vehicle and the vehicle reaches the distance threshold 1 and the lateral distance is less than the door opening range threshold, the vehicle controller starts the first-level alarm control mode and sends a first-level alarm control command to the alarm system.

[0065] S4. The alarm system responds to the first-level alarm control command and performs the alarm operation.

[0066] S5. When the longitudinal distance between the rear vehicle and the vehicle reaches the distance threshold 2, the vehicle controller sends a control command to the door controller.

[0067] S6. The door state detection module obtains the door opening state information of the vehicle and the information of the side vehicle or obstacle.

[0068] S7. When it is detected that the person in the vehicle operates the interior door handle and the rear vehicle enters the side dangerous area of the vehicle, the door controller sends a control command to the door locking device, and at the same time the vehicle controller starts the second-level alarm control mode.

[0069] S8. The door locking device controls the door to lock, and the alarm system responds to the second-level alarm control command and performs the alarm operation.

[0070] S9. When the rear vehicle leaves the danger zone, the door controller issues an unlocking control command for the door locking device, and the vehicle controller releases the secondary alarm control mode.

[0071] Furthermore, when the whole vehicle enters the first-level alarm control mode: the sound alarm system makes a short prompt sound alarm, and the display alarm system displays the alarm content on the car's large screen, reminding the people in the car that there is a vehicle approaching from behind; when the whole vehicle enters the second-level alarm control mode: the sound alarm system makes a short sound alarm; the light alarm system starts the flashing function of the vehicle's hazard warning lights; the display alarm system controls the instrument prompt lights to flash and alarm.

[0072] Example 1

[0073] like Figure 1 As shown, an intelligent door opening sensing control system includes a rear vehicle or obstacle detection module, a vehicle controller, a door controller, a door status detection module, and an alarm system;

[0074] The rear vehicle or obstacle detection module is used to detect and process the status information of the rear vehicle or obstacle, and notify the vehicle controller of the information processing result;

[0075] The door status detection module is used to detect the door opening status information and vehicle side status information, and send the detection results to the door controller and the vehicle controller;

[0076] The door controller is used to control the locking or unlocking of the door according to the information obtained by the door status detection module;

[0077] The vehicle controller controls the vehicle to enter a corresponding alarm control mode according to the information sent by the rear vehicle or obstacle detection module and the door controller, and sends a corresponding control command to the alarm system;

[0078] The alarm system executes the control commands of the vehicle controller and performs alarm operations of corresponding levels.

[0079] Furthermore, the rear vehicle or obstacle detection module includes a rearview camera, a detection radar and an ADAS calculator;

[0080] The rear-view camera and detection radar are used to collect the status information of the rear vehicle and send it to the ADAS computer;

[0081] The ADAS calculator is used to determine the door opening risk level of the vehicle according to the acquired rear vehicle status information, and send the determination result to the vehicle controller.

[0082] Furthermore, the rear vehicle status information includes: relative distance information between the rear vehicle and the host vehicle and longitudinal acceleration information of the rear vehicle.

[0083] Furthermore, the relative distance information includes longitudinal distance information and lateral distance information.

[0084] Further, the door state detection module includes an in - door handle sensor and a side sensor; the in - door handle sensor is used to detect the operation of the vehicle occupants to open the door; the side sensor is installed at the bottom of the vehicle's exterior rearview mirror and is used to detect whether a vehicle behind enters the dangerous area of the vehicle.

[0085] Further, the door controller is used to control the door shaft motor of the vehicle to perform door locking or unlocking operations.

[0086] Further, the alarm system includes a sound alarm system, a light alarm system, and a display alarm system; the sound alarm system and the display alarm system perform corresponding alarm operations respectively when the vehicle enters the first - level alarm control mode and the second - level alarm control mode; the light alarm system performs corresponding alarm operations when the vehicle enters the second - level alarm control mode.

[0087] Furthermore, the sound alarm system gives a short prompt tone alarm in the first - level alarm control mode; and gives a rapid prompt tone alarm in the second - level alarm control mode;

[0088] The display alarm system displays alarm content on the vehicle's large screen in the first - level alarm control mode; and controls the instrument warning light to flash for alarm in the second - level alarm control mode;

[0089] The light alarm system starts the vehicle's hazard warning lights to flash in the second - level alarm control mode.

[0090] Embodiment 2

[0091] As Figure 2 shown, an intelligent door opening induction control method is specifically divided into three stages as follows:

[0092] The first stage, detecting the vehicle or obstacle behind:

[0093] 1. When the vehicle speed is less than a certain vehicle speed threshold (calibratable), one of the conditions for enabling the intelligent door induction and control function is met. The purpose of setting the vehicle speed control threshold is to determine that the user meets the conditions for parking and opening the door and the intention to get off.

[0094] 2. Collect the state information of the vehicle behind through the vehicle's rear - view camera and the rear detection radar. The state information of the vehicle behind includes two aspects:

[0095] One is the relative distance information between the vehicle behind and the vehicle, including the longitudinal distance and the lateral distance; the other is the longitudinal acceleration information of the vehicle behind.

[0096] 3. The ADAS calculator comprehensively calculates the status information of the rear vehicle. When the longitudinal distance between the rear vehicle and the vehicle reaches the distance threshold 1 (calibrable), and the lateral distance is less than the door opening range threshold (calibrable), the vehicle controller starts the first-level alarm control mode and sends relevant first-level alarm control commands to the sound alarm system and the display alarm system.

[0097] 4. The sound alarm system receives a first-level alarm control command and issues a short audible alarm. The display alarm system receives a first-level alarm control command and displays the alarm content on the car's large screen, reminding occupants that a vehicle is approaching from behind and to open the door with caution.

[0098] 5. The first level alarm control mode will be released after a certain period of time.

[0099] The second stage is to detect the rear vehicle or obstacle entering the secondary alarm control range:

[0100] 1. Continue to collect the lateral distance, longitudinal distance and longitudinal acceleration of the rear vehicle from the vehicle through the vehicle rearview camera and detection radar. After comprehensive calculation by the ADAS calculator, it is determined that the longitudinal distance between the rear vehicle and the vehicle reaches the distance threshold 2 (which can be calibrated); the door controller obtains the collection signals of the inner handle sensor of the vehicle and the side sensor installed at the bottom of the exterior rearview mirror of the vehicle in real time;

[0101] 2. When the vehicle's interior handle sensor detects that someone inside the vehicle is operating the interior handle, and the side sensor installed at the bottom of the vehicle's exterior rearview mirror detects that the vehicle behind has entered the danger zone, the door controller sends a control command to the door locking device, and the vehicle controller starts the secondary alarm control mode.

[0102] The third stage, secondary alarm control strategy response, controls the door and alarm system response according to the controller calculation:

[0103] 1. When the door controller issues a control command for the door locking device, the door locking device will work immediately, regardless of the state of the door lock at this time, and immediately lock the door hinge and shaft to prevent the occupants from further opening the door.

[0104] 2. When the vehicle controller issues a command to start the secondary alarm control mode, the sound alarm system, light alarm system and display alarm system immediately respond to the secondary alarm control strategy: the sound alarm system receives the secondary alarm control command and makes a more restrained sound alarm; the light alarm system receives the secondary alarm control command and starts the flashing function of the vehicle's hazard warning lights to alert the vehicles behind; the display alarm system receives the secondary alarm control command and controls the instrument prompt lights to flash as an alarm.

[0105] 3. When the rear vehicle leaves the danger zone, the door controller issues an unlocking control command for the door locking device, and the vehicle controller releases the secondary alarm control mode.

[0106] 4. When the door controller issues an unlock command for the door locking device, the door locking device is unlocked immediately and the occupants can open the door normally without affecting the normal functional requirements of entering and exiting the vehicle.

[0107] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent vehicle door opening induction control system, characterized in that, It includes a rear vehicle or obstacle detection module, a vehicle controller, a door controller, a door state detection module, and an alarm system; The rear vehicle or obstacle detection module is used to detect and process the state information of the rear vehicle or obstacle, and notify the vehicle controller of the information processing result; the rear vehicle or obstacle detection module includes a rearview camera, a detection radar, and an ADAS calculator; the rearview camera and the detection radar are used to collect the state information of the rear vehicle and send it to the ADAS calculator; the ADAS calculator is used to judge the danger level of the door opening of the vehicle according to the obtained state information of the rear vehicle, and send the judgment result to the vehicle controller; The door state detection module is used to detect the door opening state information and the vehicle side state information, and send the detection results to the door controller and the vehicle controller; the door state detection module includes an in - door handle sensor and a side sensor; the in - door handle sensor is used to detect the operation of the vehicle occupants to open the door; the side sensor is installed at the bottom of the vehicle's outside rearview mirror and is used to detect whether the rear vehicle enters the dangerous area of the vehicle; The door controller is used to control the door locking or unlocking according to the information obtained by the door state detection module; The vehicle controller controls the vehicle to enter the corresponding alarm control mode according to the information sent by the rear vehicle or obstacle detection module and the door controller, and sends the corresponding control command to the alarm system; The alarm system executes the control command of the vehicle controller to perform the corresponding level of alarm operation.

2. The intelligent vehicle door opening induction control system according to claim 1, characterized in that, The state information of the rear vehicle includes: the relative distance information between the rear vehicle and the vehicle and the longitudinal acceleration information of the rear vehicle.

3. The intelligent vehicle door opening induction control system according to claim 2, characterized in that, The relative distance information includes longitudinal distance information and lateral distance information.

4. The intelligent vehicle door opening induction control system according to claim 1, characterized in that, The door controller is used to control the door rotating shaft motor of the vehicle to perform door locking or unlocking operations.

5. The intelligent vehicle door opening induction control system according to claim 1, characterized in that, The alarm system includes a sound alarm system, a light alarm system, and a display alarm system; the sound alarm system and the display alarm system perform corresponding alarm operations respectively when the vehicle enters the first - level alarm control mode and the second - level alarm control mode; the light alarm system performs corresponding alarm operations when the vehicle enters the second - level alarm control mode.

6. The intelligent vehicle door opening induction control system according to claim 5, characterized in that, The sound alarm system gives a short prompt tone alarm in the first - level alarm control mode; and gives a rapid prompt tone alarm in the second - level alarm control mode; The display alarm system displays the alarm content on the vehicle's large screen in the first - level alarm control mode; and controls the instrument warning light to flash for alarm in the second - level alarm control mode; The light alarm system starts the flashing of the vehicle's hazard warning lights in the second - level alarm control mode.

7. A control method for the intelligent vehicle door opening induction control system according to claim 1, characterized in that, It includes the following steps: S1. When the vehicle speed of the vehicle is less than the vehicle speed threshold, the vehicle controller notifies the rear vehicle or obstacle detection module to start information collection; S2. The rear vehicle or obstacle detection module collects the longitudinal distance, lateral distance between the rear vehicle and the vehicle, and the longitudinal acceleration information of the rear vehicle; S3. When the longitudinal distance between the following vehicle and the host vehicle reaches the distance threshold 1 and the lateral distance is less than the door opening range threshold, the vehicle controller activates the first-level alarm control mode and sends a first-level alarm control command to the alarm system; S4. The alarm system responds to the first-level alarm control command and performs the alarm operation; S5. When the longitudinal distance between the following vehicle and the host vehicle reaches the distance threshold 2, the vehicle controller sends a control command to the door controller; S6. The door status detection module obtains the door opening status information of the host vehicle and the information of the side vehicle or obstacle; S7. When it is detected that the occupant inside the host vehicle operates the interior door handle and the following vehicle enters the side dangerous area of the host vehicle, the door controller sends a control command to the door locking device, and at the same time the vehicle controller activates the second-level alarm control mode; S8. The door locking device controls the door to lock, and the alarm system responds to the second-level alarm control command and performs the alarm operation; S9. When the following vehicle drives out of the dangerous area, the door controller sends an unlocking control command to the door locking device, and at the same time the vehicle controller deactivates the second-level alarm control mode.

8. The control method for the intelligent vehicle door opening induction control system according to claim 7, characterized in that, When the vehicle enters the first-level alarm control mode: the sound alarm system gives a short beeping alarm, and the display alarm system displays the alarm content on the vehicle's large screen to prompt the occupants inside the vehicle that there is a vehicle approaching from behind; when the vehicle enters the second-level alarm control mode: the sound alarm system gives a rapid beeping alarm; the lighting alarm system activates the flashing function of the vehicle's hazard warning lights; the display alarm system controls the instrument warning lights to flash for alarm.

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