CN112810585A - Automobile emergency braking auxiliary system and control method thereof - Google Patents
Automobile emergency braking auxiliary system and control method thereof Download PDFInfo
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- CN112810585A CN112810585A CN202110300700.2A CN202110300700A CN112810585A CN 112810585 A CN112810585 A CN 112810585A CN 202110300700 A CN202110300700 A CN 202110300700A CN 112810585 A CN112810585 A CN 112810585A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/14—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated upon collapse of driver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/22—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle, or by means of contactless obstacle detectors mounted on the vehicle
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- Regulating Braking Force (AREA)
Abstract
The invention relates to the technical field of vehicle active safety, and discloses an automobile emergency braking auxiliary system which comprises a control module positioned below an engine cover of a vehicle body, wherein the control module comprises a master controller, and the master controller is connected with an information acquisition unit and a braking actuator; the invention also provides a control method of the automobile emergency braking auxiliary system, which comprises the following steps: s1: and detecting information, namely identifying that the increase of the instantaneous acceleration value of the vehicle exceeds a set value through an acceleration sensor, and monitoring that the driver does not deeply step on an accelerator pedal through an accelerator pedal position sensor. The invention can prevent the situation that the driver mistakenly turns the accelerator as the brake due to transition tension, so that the vehicle is out of control to cause secondary or multiple accidents, can prevent the vehicle from being out of control to cause secondary accidents, and can prevent the vehicle from changing the driving direction due to external force impact to cause the vehicle to be out of control or to cause falling accidents such as falling off a bridge, falling off a cliff, falling off a river and the like.
Description
Technical Field
The invention relates to the technical field of vehicle active safety, in particular to an automobile emergency braking auxiliary system and a control method thereof.
Background
With the increasing of the number of automobiles, the number of drivers is rapidly increased, traffic accidents frequently occur, once a traffic accident occurs, especially when a serious collision accident occurs, no matter an automatic braking system or a driver applied to the current automobile, the automatic braking system or the driver cannot continuously work or effectively control the automobile, if the accident causes the damage of an automatic braking system radar or the failure of the whole system, the automatic braking system cannot work again, the accident causes the casualties of the driver or the change of the driving posture, and even the accident is thrown out of the automobile to cause the out-of-control of the automobile.
Through retrieval, a patent with the publication number of CN104802775A is granted, and a self-locking type automobile emergency braking system is disclosed, which consists of a spring support, a fixed lock, a rope winding roller, a sliding arc plate, a clamping plate, a friction plate and a tripod and is arranged right above each driving wheel, when emergency braking is needed, an emergency braking button arranged in a cab is pressed, the emergency braking button controls a solenoid valve switch to open an air storage cylinder, so that air pressure enters a cylinder barrel fixed at the bottom of a frame through an air passage, a piston rod extending out of the cylinder barrel drives a locking pull rod on the fixed lock to act, and a top snap ring of a locked shock absorber is released; the above patent can effectively avoid traffic accidents, but the driver and the automatic braking system can not effectively brake the vehicle after the vehicle has a collision accident or the vehicle is out of control, thereby causing secondary or multiple collisions and other accidents.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an automobile emergency braking auxiliary system and a control method thereof, and mainly aims to solve the technical problem that the conventional driver and automatic braking system cannot effectively brake the automobile after the automobile has a collision accident or is out of control, so that secondary or multiple collisions and other accidents are caused.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an automobile emergency braking auxiliary system, is including being located the control module of vehicle body bonnet below, control module includes total controller, and total controller is connected with information acquisition unit and braking executor, the information that information acquisition unit gathered includes collision information, speed of a motor vehicle information, air bag information, accelerator pedal information, brake pedal information, driver gesture information and driver position information, control module is connected with the hardware module, and the hardware module includes camera, acceleration sensor, gyroscope sensor, position sensor and second controller, the camera is installed in the driver's cabin, acceleration sensor embeds in automobile emergency braking auxiliary system controller, gyroscope sensor embeds in automobile emergency braking auxiliary system controller.
As a still further aspect of the present invention, the general controller is connected to a vehicle-mounted diagnosis system.
Furthermore, the position sensor is connected with the master controller and is installed on the side of an accelerator pedal of the vehicle.
On the basis of the scheme, the second controller is connected with a brake lamp signal line of the vehicle.
According to a still further scheme of the invention, the brake actuator comprises a driving mechanism, a rack and a chain, the driving mechanism comprises a fixed frame and a motor, the fixed frame is fixed on one side of the vehicle body through bolts, the motor is fixed on one side of the fixed frame, one end of an output shaft of the motor is in key connection with a gear, the gear is meshed with the rack, a sliding rail is arranged on the inner wall of one side of the vehicle body and is in sliding connection with the rack, the chain is in bolt connection with one end of the rack, and the other end of the chain is fixedly connected.
Furthermore, a fixing seat is fixed to one side of the vehicle body through a bolt, a pulley is fixed to one side of the fixing seat through a bolt, and the chain bypasses the pulley.
The invention also provides a control method of the automobile emergency braking auxiliary system, which comprises the following steps:
s1: detecting information, namely identifying that the vehicle collides when the instantaneous acceleration value increment of the vehicle exceeds a set value through an acceleration sensor, monitoring that the driver does not deeply step on an accelerator pedal through an accelerator pedal position sensor, and detecting that the brake signal lamp switch is communicated through the controller, and identifying that the vehicle airbag bounces (airbags at any positions) through a vehicle-mounted diagnosis system and a camera under the condition that the driver does not step on a brake;
s2: when the vehicle is identified to be collided, the second controller detects that the brake signal lamp switch is communicated by manual control (when a driver steps on a brake pedal, a vehicle brake lamp is lightened, and the second controller identifies that the brake lamp is lightened before the emergency brake auxiliary system brakes), so that the driver can be identified to actively brake the vehicle at the moment, and the emergency brake auxiliary system automatically shields and does not interfere with the active brake operation of the driver;
s3: recognizing that a driver operates a steering wheel to steer actively through a camera, and recognizing that the steering angle of the vehicle changes suddenly through a vehicle-mounted diagnosis system or a gyroscope, which means that after the vehicle collides, the driver does not brake the vehicle, but operates the vehicle to avoid obstacles appearing again in an emergency or adopts an edge-to-edge parking operation, and at the moment, the brake of an emergency brake auxiliary system performs automatic shielding without interfering with the active avoiding or parking operation of the driver;
s4: after the vehicle is collided, recognizing that a driver deeply steps on an accelerator pedal through an accelerator position sensor, pressing the position of the accelerator pedal to the bottommost part, and when the acceleration value of the vehicle is suddenly increased and the increase quantity exceeds a set value, indicating that the driver mistakenly operates the accelerator as a brake due to mental stress after the vehicle is collided, and immediately braking the vehicle by the emergency braking auxiliary system until the vehicle speed is recognized to be zero, and automatically releasing the brake;
s5: after the vehicle is collided, the camera recognizes that the driver leaves the seat (throws out of the vehicle) or the driving posture is obviously abnormal due to inertia, or recognizes that the driver is faint or casualty due to strong collision, the emergency braking auxiliary system can immediately brake the vehicle until the vehicle speed is recognized to be zero by the vehicle-mounted diagnosis system, and the vehicle is automatically braked;
s6: the vehicle running in a straight line is identified through the camera that a driver does not actively operate a steering wheel to perform steering, merging or avoiding operation, the vehicle-mounted diagnosis system or the gyroscope identifies that the steering angle or the running direction of the vehicle is suddenly changed, the emergency braking auxiliary system immediately brakes the vehicle, or the vehicle-mounted diagnosis system or the gyroscope identifies that the driver does not deeply step on an accelerator pedal through an accelerator position sensor, or the controller does not detect that a brake signal lamp switch is communicated, the driver does not step on a brake, when the acceleration value of the vehicle is suddenly increased and the increase exceeds a set value, the vehicle can be identified to be impacted by external force, and the emergency braking auxiliary system immediately brakes the vehicle.
In addition to the foregoing solutions, in S5, when the airbag for protecting the pedestrian is also located at the hood in front of the vehicle, if the vehicle-mounted diagnostic system or the camera recognizes that any airbag in the vehicle is flipped open, the emergency braking assistance system immediately brakes the vehicle if the driver does not recognize that the vehicle is actively braked, and the vehicle is automatically released after the vehicle-mounted diagnostic system recognizes that the vehicle speed is zero.
(III) advantageous effects
Compared with the prior art, the invention provides an automobile emergency braking auxiliary system, which has the following beneficial effects:
1. the invention can collect the driving posture information of the driver, the active control information and the driver position information of the vehicle and the state information of the safety air bag through the arranged camera, and send the information to the master controller, can collect the steering angle information of the vehicle and the left and right yaw angle information of the vehicle through the arrangement of the gyroscope sensor, can collect the collision information of the vehicle through the arrangement of the acceleration sensor, can collect the state information of the accelerator pedal through the arrangement of the position sensor, and send the state information of the accelerator pedal to the master controller, can obtain the state information of the brake pedal through the arrangement of the second controller, before the emergency brake auxiliary system performs braking on the vehicle, the second controller can identify as the driver to actively brake the vehicle when detecting that the brake signal lamp switch is communicated through manual control, the state information of the vehicle can be mastered at any time, and the intelligent degree is high.
2. The invention can obtain the vehicle speed value, the vehicle steering angle information and the safety air bag state information through the arrangement of the vehicle-mounted diagnosis system, after the vehicle is collided, the accelerator position sensor identifies that the driver deeply steps on the accelerator pedal, the position of the accelerator pedal is pressed to the bottommost part, and when the vehicle acceleration value exceeds a set value, the situation that the driver mistakenly turns on the accelerator as the brake due to mental stress after the vehicle is collided means that the driver mistakenly turns on the accelerator as the brake due to mental stress, the vehicle can be immediately braked through the emergency brake auxiliary system until the vehicle speed is identified to be zero, the brake is automatically released, and the situation that the driver mistakenly turns on the accelerator as the brake due to transient stress, so that the vehicle is out of control to cause secondary.
3. According to the emergency braking auxiliary system, after a vehicle is collided, the camera recognizes that a driver leaves a seat (is thrown out of the vehicle) or the driving posture is obviously abnormal due to inertia, or recognizes that the driver is faint or casualty due to strong collision, and the emergency braking auxiliary system can immediately brake the vehicle so as to prevent the vehicle from being out of control to cause a secondary accident.
4. According to the invention, a vehicle running in a straight line recognizes that a driver does not actively operate a steering wheel to perform steering, merging or avoiding operation through a camera, a vehicle-mounted diagnosis system or a gyroscope recognizes that the steering angle or the running direction of the vehicle is suddenly changed, and an emergency braking auxiliary system immediately brakes the vehicle to prevent the vehicle from changing the running direction due to external force impact (by rear-end collision or impact by vehicles on the left side and the right side) so as to prevent the vehicle from being out of control or falling accidents such as bridge falling, cliff falling and river falling.
Drawings
FIG. 1 is a schematic structural diagram of a brake actuator of an emergency brake auxiliary system for an automobile according to the present invention;
FIG. 2 is a schematic diagram of a hardware module structure of an emergency braking assist system for a vehicle according to the present invention;
fig. 3 is a schematic structural diagram of an overall module of an automobile emergency braking auxiliary system according to the present invention.
In the figure: 1. a vehicle body; 2. a slide rail; 3. a rack; 4. a fixed mount; 5. a motor; 6. a gear; 7. a chain; 8. a pulley; 9. a camera; 10. an acceleration sensor; 11. a gyroscope sensor; 12. a position sensor; 13. a brake actuator; 14. a second controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an automobile emergency braking auxiliary system comprises a control module located under an engine cover of an automobile body 1, the control module comprises a master controller, the master controller is connected with an information acquisition unit and a brake actuator 13, the information acquired by the information acquisition unit comprises collision information, vehicle speed information, airbag information, accelerator pedal information, brake pedal information, driver attitude information and driver position information, the control module is connected with a hardware module, the hardware module comprises a camera 9, an acceleration sensor 10, a gyroscope sensor 11, a position sensor 12 and a second controller 14, the camera 9 is installed in a cab and used for acquiring driving attitude information of a driver, active control information and position information of the automobile and state information of the airbag, and transmitting the above information to the master controller, the acceleration sensor 10 is built in the automobile emergency braking auxiliary system controller, the gyroscope sensor 11 is built in the automobile emergency braking auxiliary system controller and is used for acquiring the steering angle information of the vehicle and the left and right yaw angle information of the vehicle.
In the invention, a master controller is connected with a vehicle-mounted diagnosis system, a vehicle speed value (specifically, a vehicle-mounted diagnosis system terminal and a vehicle-mounted diagnosis system connecting wire can be led out from the master controller and directly connected with a vehicle-mounted diagnosis system of an original vehicle by using the connecting wire) and vehicle steering angle information and airbag state information are obtained by the vehicle-mounted diagnosis system, a position sensor 12 is connected with the master controller, the position sensor 12 is arranged on the side of an accelerator pedal of the vehicle, used for collecting the state information of the accelerator pedal and sending the state information of the accelerator pedal to a master controller, a second controller 14 is connected with a brake lamp signal wire of the vehicle and used for acquiring the state information of the brake pedal, before the emergency braking auxiliary system performs braking on the vehicle, the second controller can recognize that the driver actively brakes the vehicle when detecting that the brake signal lamp switch is communicated by manual control.
Particularly, the brake actuator 13 comprises a driving mechanism, a rack 3 and a chain 7, the driving mechanism comprises a fixed frame 4 and a motor 5, the brake actuator 13 is fixed below the brake pedal through a bolt, the fixed frame 4 is fixed on one side of the vehicle body 1 through a bolt, the motor 5 is fixed on one side of the fixed frame 4, one end of an output shaft of the motor 5 is connected with a gear 6 through a key, the gear 6 is meshed with the rack 3, a slide rail 2 is arranged on the inner wall of one side of the vehicle body 1, the slide rail 2 is in sliding connection with the rack 3, the chain 7 is bolted on one end of the rack 3, the other end of the chain 7 is fixedly connected with the brake pedal, a fixed seat is fixed on one side of the vehicle body 1 through a bolt, a pulley 8 is fixed on one side of the fixed seat through a bolt, the chain 7 bypasses the pulley 8, when the motor 8 in the driving mechanism, the driving mechanism moves back to the direction of the brake pedal to enable the chain to pull the brake pedal to fall so as to brake the vehicle, and when the motor 8 in the driving mechanism receives a master controller brake release signal, the driving mechanism drives the rack 3 to move towards the direction of the brake pedal so as to release the brake of the vehicle.
The invention also provides a control method of the automobile emergency braking auxiliary system, which comprises the following steps:
s1: detecting information, namely identifying that the vehicle collision happens when the increase of the instantaneous acceleration value of the vehicle exceeds a set value through an acceleration sensor, monitoring that the driver does not deeply step on an accelerator pedal through an accelerator pedal position sensor, and detecting that a brake signal lamp switch is communicated through a controller, and identifying that a vehicle safety air bag pops open (an air bag at any position) through a vehicle-mounted diagnosis system and a camera under the condition that the driver does not step on a brake;
s2: when the fact that the vehicle is collided is recognized, when the second controller detects that the brake signal lamp switch is communicated through manual control (when a driver steps on a brake pedal, a vehicle brake lamp is lightened, the second controller recognizes that the brake lamp is lightened before the emergency brake auxiliary system brakes), the second controller can recognize that the driver is actively braking the vehicle at the moment, and the emergency brake auxiliary system automatically shields and does not interfere with the active brake operation of the driver;
s3: the fact that the driver operates the steering wheel to steer actively is recognized through the camera, and the fact that the steering angle of the vehicle changes suddenly is recognized through the vehicle-mounted diagnosis system or the gyroscope, means that the driver does not brake the vehicle after the vehicle collides, but operates the vehicle to avoid an obstacle appearing again in an emergency mode or adopt a side parking operation, at the moment, the brake of the emergency brake auxiliary system is used for shielding automatically, the active avoidance or the parking operation of the driver is not interfered, when the driver does not hit the steering wheel, the steering angle changes suddenly, the running track changes suddenly, or the driver does not accelerate suddenly or adopt the emergency brake, the acceleration increasing value of the vehicle exceeds a set value, namely, the vehicle is required to be braked from the back, or is impacted by an opposite vehicle, or is impacted by vehicles on the left side and the right side or other moving objects, at the moment, the vehicle is required to be braked immediately, preventing the vehicle from falling into the river, falling into the bridge, falling or other secondary collision accidents;
s4: after the vehicle is collided, recognizing that a driver deeply steps on an accelerator pedal through an accelerator position sensor, pressing the position of the accelerator pedal to the bottommost part, and when the acceleration value of the vehicle exceeds a set value, indicating that the driver mistakenly operates the accelerator as a brake due to mental stress after the vehicle is collided, immediately braking the vehicle by the emergency braking auxiliary system at the moment until the vehicle speed is recognized to be zero, and automatically releasing the brake;
s5: after the vehicle is collided, the camera recognizes that the driver leaves the seat (throws out of the vehicle) or the driving posture is obviously abnormal due to inertia, or recognizes that the driver is faint or casualty due to strong collision, the emergency braking auxiliary system can immediately brake the vehicle until the vehicle speed is recognized to be zero by the vehicle-mounted diagnosis system, and the vehicle is automatically braked;
s6: the vehicle running in a straight line is identified through the camera that a driver does not actively operate a steering wheel to perform steering, merging or avoiding operation, the vehicle-mounted diagnosis system or the gyroscope identifies that the steering angle or the running direction of the vehicle is suddenly changed, or identifies that the driver does not deeply step on an accelerator pedal through an accelerator position sensor, or the controller does not detect that a brake signal lamp switch is communicated, the driver does not step on a brake, when the acceleration value of the vehicle is suddenly increased and the increase exceeds a set value, the vehicle can be identified to be impacted by external force, and the emergency brake auxiliary system immediately brakes the vehicle.
In particular, when the airbag for protecting the pedestrian is also present at the hood in front of the vehicle in S5, if the vehicle-mounted diagnostic system or the camera recognizes that any airbag in the vehicle is flipped open, the emergency braking assist system immediately brakes the vehicle if the driver does not recognize that the vehicle is actively braked, and the vehicle is automatically released after the vehicle-mounted diagnostic system recognizes that the vehicle speed is zero.
The working principle is as follows: the driving posture information of a driver, the active control information and the position information of the vehicle and the state information of an air bag are collected through the camera 9 and are sent to the master controller, the steering angle information of the vehicle and the left-right yaw angle information of the vehicle are collected through the gyroscope sensor 11, the collision information of the vehicle is collected through the acceleration sensor 10, the state information of an accelerator pedal is collected through the position sensor 12 and is sent to the master controller, the state information of the brake pedal is obtained through the second controller 14, before the emergency braking auxiliary system performs braking on the vehicle, the second controller 14 can recognize that the driver actively brakes the vehicle when detecting that a brake signal lamp switch is communicated through manual control, the state information of the vehicle can be mastered at any time, the intelligent degree is high, when receiving a master controller braking signal, a motor 8 in the driving mechanism starts to rotate, then drives the rack 3 to slide on the slide rail 2 and move in a direction opposite to the direction of the brake pedal, so that the chain pulls the brake pedal to fall down to brake the vehicle, and when receiving a master controller braking release signal, the motor 8 in the driving mechanism drives the rack 3 to move in a positive direction of the brake pedal, so that the vehicle is released from braking.
In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An automobile emergency braking auxiliary system comprises a control module positioned below an engine cover of a vehicle body (1), it is characterized in that the control module comprises a master controller, the master controller is connected with an information acquisition unit and a brake actuator (13), the information collected by the information collecting unit comprises collision information, vehicle speed information, safety air bag information, accelerator pedal information, brake pedal information, driver posture information and driver position information, the control module is connected with a hardware module, the hardware module comprises a camera (9), an acceleration sensor (10), a gyroscope sensor (11), a position sensor (12) and a second controller (14), the camera (9) is arranged in a cab, the acceleration sensor (10) is arranged in a controller of an automobile emergency braking auxiliary system, the gyroscope sensor (11) is arranged in a controller of the automobile emergency braking auxiliary system.
2. The automobile emergency braking auxiliary system according to claim 1, wherein an on-board diagnostic system is connected to the general controller.
3. The emergency brake auxiliary system of claim 2, wherein the position sensor (12) is connected to the general controller, and the position sensor (12) is installed on the accelerator pedal side of the vehicle.
4. The emergency brake assist system of claim 1, wherein the second controller (14) is connected to a brake light signal line of the vehicle.
5. The automobile emergency brake auxiliary system according to claim 4, wherein the brake actuator (13) comprises a driving mechanism, a rack (3) and a chain (7), the driving mechanism comprises a fixed frame (4) and a motor (5), the fixed frame (4) is fixedly connected to one side of the automobile body (1), the motor (5) is fixed to one side of the fixed frame (4), one end of an output shaft of the motor (5) is connected with the gear (6) in a key mode, the gear (6) is meshed with the rack (3), a sliding rail (2) is arranged on the inner wall of one side of the automobile body (1), the sliding rail (2) is movably connected with the rack (3), the chain (7) is bolted to one end of the rack (3), and the other end of the chain (7) is fixedly connected with the brake pedal.
6. The emergency brake auxiliary system for the automobile according to claim 5, wherein a fixed seat is fixed on one side of the automobile body (1) through a bolt, a pulley (8) is fixedly connected on one side of the fixed seat, and the chain (7) is wound around the pulley (8).
7. A control method of an automobile emergency brake auxiliary system is characterized by comprising the following steps:
s1: detecting information, namely identifying that the vehicle collides when the instantaneous acceleration value increment of the vehicle exceeds a set value through an acceleration sensor, monitoring that the driver does not deeply step on an accelerator pedal through an accelerator pedal position sensor, and detecting that the brake signal lamp switch is communicated through the controller, and identifying that the vehicle airbag bounces (airbags at any positions) through a vehicle-mounted diagnosis system and a camera under the condition that the driver does not step on a brake;
s2: when the vehicle is identified to be collided, the second controller detects that the brake signal lamp switch is communicated by manual control (when a driver steps on a brake pedal, a vehicle brake lamp is lightened, and the second controller identifies that the brake lamp is lightened before the emergency brake auxiliary system brakes), so that the driver can be identified to actively brake the vehicle at the moment, and the emergency brake auxiliary system automatically shields and does not interfere with the active brake operation of the driver;
s3: recognizing that a driver operates a steering wheel to steer actively through a camera, and recognizing that the steering angle of the vehicle changes suddenly through a vehicle-mounted diagnosis system or a gyroscope, which means that after the vehicle collides, the driver does not brake the vehicle, but operates the vehicle to avoid obstacles appearing again in an emergency or adopts an edge-to-edge parking operation, and at the moment, the brake of an emergency brake auxiliary system performs automatic shielding without interfering with the active avoiding or parking operation of the driver;
s4: after the vehicle is collided, recognizing that a driver deeply steps on an accelerator pedal through an accelerator position sensor, pressing the position of the accelerator pedal to the bottommost part, and when the acceleration value of the vehicle is suddenly increased and the increase quantity exceeds a set value, indicating that the driver mistakenly operates the accelerator as a brake due to mental stress after the vehicle is collided, and immediately braking the vehicle by the emergency braking auxiliary system until the vehicle speed is recognized to be zero, and automatically releasing the brake;
s5: after the vehicle is collided, the camera identifies that the driver leaves the seat (throws out of the vehicle or throws away from the driver seat) or the driving posture is obviously abnormal due to inertia, or identifies that the driver is faint or casualty due to strong collision, the emergency braking auxiliary system can immediately brake the vehicle until the vehicle speed is identified to be zero by the vehicle-mounted diagnosis system, and then the vehicle is automatically braked;
s6: the vehicle running in a straight line is identified through the camera that a driver does not actively operate a steering wheel to perform steering, merging or avoiding operation, the vehicle-mounted diagnosis system or the gyroscope identifies that the steering angle or the running direction of the vehicle is suddenly changed, or identifies that the driver does not deeply step on an accelerator pedal through an accelerator position sensor, or the controller does not detect that a brake signal lamp switch is communicated, the driver does not step on a brake, when the acceleration value of the vehicle is suddenly increased and the increase exceeds a set value, the vehicle can be identified to be impacted by external force, and the emergency brake auxiliary system immediately brakes the vehicle.
8. The method as claimed in claim 7, wherein in step S5, when there is an airbag for protecting pedestrians at a hood in front of the vehicle, the airbag is recognized to be popped up by the on-board diagnostic system or the camera, or when any airbag of the vehicle is popped up, the vehicle is immediately braked by the emergency brake auxiliary system when the driver is not recognized to actively brake the vehicle, until the vehicle speed is recognized to be zero by the on-board diagnostic system, and the brake is automatically released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110300700.2A CN112810585A (en) | 2021-03-22 | 2021-03-22 | Automobile emergency braking auxiliary system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300700.2A CN112810585A (en) | 2021-03-22 | 2021-03-22 | Automobile emergency braking auxiliary system and control method thereof |
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| CN112810585A true CN112810585A (en) | 2021-05-18 |
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| CN202110300700.2A Pending CN112810585A (en) | 2021-03-22 | 2021-03-22 | Automobile emergency braking auxiliary system and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753119A (en) * | 2021-11-09 | 2021-12-07 | 杭州寒雨科技有限公司 | Auxiliary emergency braking device for electric automobile |
| CN114275035A (en) * | 2021-12-30 | 2022-04-05 | 西安理工大学 | Auxiliary driving and refitting mechanism for electric automobile |
| CN116767149A (en) * | 2023-08-24 | 2023-09-19 | 中铁电气化铁路运营管理有限公司 | Braking auxiliary device suitable for operation vehicle |
-
2021
- 2021-03-22 CN CN202110300700.2A patent/CN112810585A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753119A (en) * | 2021-11-09 | 2021-12-07 | 杭州寒雨科技有限公司 | Auxiliary emergency braking device for electric automobile |
| CN114275035A (en) * | 2021-12-30 | 2022-04-05 | 西安理工大学 | Auxiliary driving and refitting mechanism for electric automobile |
| CN116767149A (en) * | 2023-08-24 | 2023-09-19 | 中铁电气化铁路运营管理有限公司 | Braking auxiliary device suitable for operation vehicle |
| CN116767149B (en) * | 2023-08-24 | 2023-11-28 | 中铁电气化铁路运营管理有限公司 | Braking auxiliary device suitable for operation vehicle |
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