CN107776525A - Vehicle collision avoidance system, vehicle and its collision-proof method - Google Patents
Vehicle collision avoidance system, vehicle and its collision-proof method Download PDFInfo
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- CN107776525A CN107776525A CN201610739366.XA CN201610739366A CN107776525A CN 107776525 A CN107776525 A CN 107776525A CN 201610739366 A CN201610739366 A CN 201610739366A CN 107776525 A CN107776525 A CN 107776525A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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Abstract
The invention discloses a kind of vehicle collision avoidance system; the vehicle collision avoidance system includes positive detection means, side detection means, buffer unit, pre- protection device, warning device and control device; wherein, positive detection means, for detecting vehicle and front truck and/or the relative running information of rear car；Side detection means, for detecting the obstacle information in vehicular sideview Driver Vision blind area；Buffer unit, for starting when vehicle collides；Control device is controlled according to relative running information and obstacle information to buffer unit, pre- protection device and warning device.The vehicle collision avoidance system, it is possible to achieve actively the anticollision of protection and passive security controls, more perfect.The invention also discloses a kind of vehicle and vehicle collision avoidance method.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a vehicle anti-collision system, a vehicle and a vehicle anti-collision method.
Background
At present, an anti-collision system of a vehicle mainly aims at anti-collision early warning and pedestrian protection, and completely belongs to the field of active safety of the vehicle, however, the anti-collision system can not be used for solving passive safety aspects such as sent collision and collision degree reduction.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the present invention needs to provide a vehicle anti-collision system, which can achieve active protection and passive safe anti-collision control, and is more complete.
The invention also provides a vehicle comprising the anti-collision system and an anti-collision method of the vehicle.
In order to solve the above problems, an aspect of the present invention provides a vehicle collision avoidance system, including: the front detection device is used for detecting relative driving information of the vehicle and a front vehicle and/or a rear vehicle; the side surface detection device is used for detecting the barrier information in the visual blind area of the driver on the side surface of the vehicle; a buffer device for starting when the vehicle is in collision; a pre-protection device and an alarm device; and the control device controls the buffer device, the pre-protection device and the alarm device according to the relative driving information and the obstacle information.
According to the vehicle anti-collision system provided by the embodiment of the invention, the control device is used for controlling the buffer device, the pre-protection device and the alarm device according to the detected relative driving information and the detected obstacle information, and the functions of anti-collision early warning, pedestrian protection and reduction of the collision degree are integrated, so that the coefficients of active safety and passive safety of the vehicle are greatly improved, and the anti-collision is more perfect.
In some embodiments of the present invention, the control device includes a master controller and a slave controller, where the slave controller obtains the relative driving information and the obstacle information, respectively, sends a front anti-collision trigger signal to the master controller when the relative driving information meets a front pre-protection condition, controls the buffer device to start and sends a sent collision signal to the master controller when judging that the vehicle has collided according to the relative driving information, and sends a side anti-collision trigger signal to the master controller when judging that an obstacle exists in the driver's vision blind area according to the obstacle information; and the main controller controls the pre-protection device and the alarm device according to the front anti-collision trigger signal, the sent collision signal and the side anti-collision trigger signal respectively.
Wherein the master controller comprises a vehicle control unit of the vehicle.
The main controller comprises a vehicle controller, the slave controller is arranged to perform information interaction with the vehicle controller, the anti-collision control of the vehicle in the aspects of active safety and passive safety is realized, the system function is easy to expand and optimize, the system installation and the vehicle modification are easy, and the popularization of the system in the front-loading and rear-loading markets of the vehicle is facilitated.
In some embodiments of the invention, the vehicle collision avoidance system further comprises: the state parameter detection device is used for detecting current operation state parameters of the vehicle, the main controller judges the driving intention of the driver according to the current operation state parameters, and controls the pre-protection device and the alarm device according to the driving intention of the driver, the front anti-collision trigger signal and the side anti-collision trigger signal, so that the false alarm rate and the false alarm rate can be avoided.
Specifically, the front detection device comprises a millimeter wave radar, so that the energy consumption is low and the cost is low.
Specifically, the side detection device comprises an ultrasonic ranging radar, and is low in energy consumption and cost.
Specifically, the pre-protection device comprises an auxiliary brake device and a safety belt pre-tightening device.
Specifically, the state parameter detection device includes at least one of an accelerator pedal position sensor, a brake pedal position sensor, a temperature sensor, a vehicle speed sensor, and a steering wheel angle sensor.
Based on the vehicle anti-collision system in the above aspect, the invention provides a vehicle in another aspect, which includes the vehicle anti-collision system in the above aspect.
The vehicle has the advantages that by adopting the vehicle anti-collision system in the embodiment in the aspect, the functions of anti-collision early warning, pedestrian protection and reduction of the collision degree are integrated, the coefficients of active safety and passive safety of the vehicle are greatly improved, and the anti-collision is more perfect.
In order to solve the above problems, a vehicle collision avoidance method according to still another aspect of the present invention includes: respectively detecting relative driving information of a vehicle and a front vehicle and/or a rear vehicle and barrier information in a driver vision blind area on the side surface of the vehicle; and controlling a pre-protection device, an alarm device and a buffer device of the vehicle according to the relative driving information and the obstacle information.
According to the vehicle anti-collision method provided by the embodiment of the invention, the buffer device, the pre-protection device and the alarm device are controlled according to the detected relative driving information and the detected obstacle information, and the functions of anti-collision early warning, pedestrian protection and reduction of the sent collision degree are integrated, so that the coefficients of active safety and passive safety of the vehicle are greatly improved, and the anti-collision is more perfect.
In some embodiments of the present invention, the controlling the pre-protection device, the warning device, and the buffering device of the vehicle according to the relative driving information and the obstacle information further includes: when the relative driving information meets the front pre-protection condition, controlling the pre-protection device to start and controlling the alarm device to give an alarm; or when the vehicle is judged to collide according to the relative driving information, the buffer device is controlled to start and the alarm device is controlled to give an alarm; or when judging that the obstacles exist in the driver vision blind area according to the obstacle information, controlling the pre-protection device to start and controlling the alarm device to give an alarm.
In some embodiments of the invention, the method for collision avoidance for a vehicle further comprises: detecting a current operating state parameter of the vehicle; judging the driving intention of the driver according to the current running state parameters; and controlling the pre-protection device and the alarm device of the vehicle according to the driving intention of the driver, the relative driving information and the obstacle information, so as to avoid false alarm rate and false alarm rate.
Drawings
Fig. 1 is a block diagram of a vehicle collision avoidance system according to an embodiment of the present invention;
fig. 2 is a block diagram of a vehicle collision avoidance system according to an embodiment of the present invention;
fig. 3 is a block diagram of a vehicle collision avoidance system according to a particular embodiment of the present invention;
FIG. 4 is a schematic representation of a vehicle according to an embodiment of the present invention; and
fig. 5 is a flowchart of a method for collision avoidance for a vehicle according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In view of the defects of the existing anti-collision system, the embodiment of the invention provides a more complete intelligent anti-collision scheme, integrates the functions of anti-collision early warning, pedestrian protection, reduction of the collision degree and the like, and optimizes the functions of the existing anti-collision early warning and pedestrian protection. The system can automatically start to work in the processes of running at a higher speed, backing at a low speed and turning, and the coefficients of active safety and passive safety of the vehicle are greatly improved.
A vehicle collision avoidance system proposed according to an embodiment of the present invention is described below with reference to the accompanying drawings.
Fig. 1 is a block diagram of a vehicle collision avoidance system according to an embodiment of the present invention, and as shown in fig. 1, the vehicle collision avoidance system 100 includes a front detection device 10, a side detection device 20, a buffer device 30, a pre-guard device 40, an alarm device 50, and a control device 60.
The front detection device 10 is configured to detect relative driving information of the vehicle and a front vehicle and/or a rear vehicle, such as distance, speed difference, and the like, so as to detect front anti-collision information. The side surface detection device 20 is used for detecting obstacle information in a driver's vision blind area on the side surface of the vehicle, for example, monitoring obstacles such as pedestrians, vehicles and the like in the driver's vision blind areas on both sides of the vehicle, and particularly detecting obstacles in a vehicle inner wheel difference in real time when the vehicle turns, so as to realize detection of side surface anti-collision information.
The bumper 30 is used to activate when a vehicle is involved in a collision, and more specifically, for a collision that has occurred, the bumper 30 is activated to convert the kinetic energy of the collision into elastic potential energy in the anti-collision bumper 30, so that the injury of the vehicle and the persons in the vehicle due to the collision can be minimized.
The control device 60 controls the buffer device 30, the pre-guard device 40, and the alarm device 50 based on the detected relative driving information and the detected obstacle information. For example, when the control device 60 determines that a collision is about to occur according to the distance between the vehicle and the preceding vehicle or the speed difference, it controls the warning device 50, such as a display, a warning light, or an audible warning buzzer, to start to warn, and controls the pre-protection device 40 to start, for example, to control the auxiliary braking device to act or the seat belt pre-warning device to act, to start the anti-collision pre-protection function, so as to implement the anti-collision pre-protection; for another example, if the control device 60 determines that the vehicle has a collision according to the vehicle distance, for example, the vehicle distance is zero, the control device controls the buffer device 30 to start to protect the vehicle and passengers, and controls the alarm device 50 to warn, so as to reduce the collision degree when the vehicle has a collision; for another example, when the control device 60 determines that there is an obstacle on the side surface according to the detected obstacle information, especially when it detects that there is an obstacle in the difference between the wheels of the vehicle during turning, the control device controls the pre-protection device 40 and the alarm device 50 to start, so as to prompt the driver to take a series of emergency measures in time, thereby protecting pedestrians.
It can be seen that, in the vehicle anti-collision system 100 according to the embodiment of the present invention, the control device 60 controls the buffer device 30, the pre-protection device 40, and the alarm device 50 according to the detected relative driving information and the detected obstacle information, and integrates the functions of anti-collision early warning, pedestrian protection, and the reduction of the collision degree, so as to greatly improve the coefficients of active safety and passive safety of the vehicle, and achieve better anti-collision performance.
Further, as shown in fig. 2, the vehicle collision avoidance system 100 according to the embodiment of the present invention employs a master-slave control system, and the control device 60 includes a master controller 61 and a slave controller 62, and during operation, the master controller 61 and the slave controller 62 may perform information interaction.
The slave controller 61 obtains the detected relative driving information and the detected obstacle information respectively, and sends a front anti-collision trigger signal to the master controller 62 when the relative driving information meets a front pre-protection condition, for example, when the distance between the vehicle and the front vehicle is smaller than a preset distance or the speed difference between the vehicle and the front vehicle is greater than a preset speed, it is considered that the vehicle will collide with the front vehicle in the front, and the slave controller 61 sends the front anti-collision trigger signal to the master controller 62; the slave controller 61 controls the buffer device 30 to start and send a sent collision signal to the master controller 62 when judging that the vehicle collides according to the acquired relative driving information, and the slave controller 61 sends a side anti-collision trigger signal to the master controller 62 when judging that an obstacle exists in a driver vision blind area on the side of the vehicle according to the obstacle information.
In turn, the main controller 62 controls the pre-protection device 40 and the alarm device 50 according to the front anti-collision trigger signal, the sent collision signal, and the side anti-collision trigger signal, respectively. For example, when receiving the front anti-collision trigger signal, the main controller 62 controls the auxiliary braking device to operate and controls the warning device 50 to give a warning and remind the driver; for another example, when the main controller 62 receives the collision signal, it controls the alarm device 50 to give an alarm, for example, a warning light or a sound alarm buzzer to give a name to give an alarm; for another example, when the main controller 62 receives the side anti-collision trigger signal, it controls the warning device 50 to warn to remind the driver to take emergency measures in time to protect pedestrians.
The vehicle anti-collision system 100 of the embodiment of the invention adopts a master-slave control mode of the master controller 62 and the slave controller 61, wherein the master controller 62 comprises a vehicle controller of the vehicle, the slave controller 61 is arranged to perform information interaction with the vehicle controller, the anti-collision control of the vehicle in the aspects of active safety and passive safety is realized, the system function is easy to expand and optimize, the system installation and the vehicle refitting are easy, and the popularization of the system 100 in the vehicle front loading and rear loading markets is facilitated.
In addition, as shown in fig. 2, the vehicle collision avoidance system 100 further includes a state parameter detection device 70, the state parameter detection device 70 is configured to detect a current operating state parameter of the vehicle, and the main controller 62 determines a driving intention of the driver according to the current operating state parameter of the vehicle, and controls the pre-protection device 40 and the warning device 50 according to the driving intention of the driver and the received front collision avoidance trigger signal and the received side collision avoidance trigger signal.
The state parameter detecting device 70 may include at least one of an accelerator pedal position sensor, a brake pedal position sensor, a temperature sensor, a vehicle speed sensor, and a steering wheel angle sensor, among others. The main controller 62 senses the driving intention of the driver based on the detection information of the accelerator pedal position sensor, the brake pedal position sensor, the temperature sensor, the vehicle speed sensor, and the steering wheel angle sensor, and then determines the driving intention and the received anti-collision trigger signal to realize anti-collision control. For example, the main controller 62 determines that the vehicle is decelerating according to the brake pedal position, the accelerator pedal position and the detection information of the speed sensor, and at this time, the main controller 62 receives the front anti-collision trigger signal, that is, the main controller 61 determines that the speed difference between the vehicle and the front vehicle is greater than the preset speed difference and needs front anti-collision, and the main controller 62 integrates the determination of the two, and if no collision occurs, the front anti-collision control may not be performed; for another example, if the main controller 62 receives the side collision avoidance trigger signal and determines that the vehicle is not turning based on the detection information of the steering wheel angle sensor, the side collision avoidance control may not be performed. Thereby reducing false alarm rate and false alarm rate.
Specifically, as shown in fig. 3, the front detection device 10 may include a millimeter wave radar, and the side detection device 20 may include an ultrasonic ranging radar, which is low in power consumption and cost. The pre-protection device 40 comprises an auxiliary brake device, a belt pretensioner.
Referring to fig. 3, the operation of the vehicle collision avoidance system 100 according to the embodiment of the present invention will be described. Wherein, the slave controllers are respectively arranged aiming at the front anti-collision, the side anti-collision and the sent collision.
Specifically, in the front anti-collision, the millimeter wave radar may be used to detect information such as a distance between a vehicle and a preceding vehicle or a following vehicle, and when it is determined that the detected information satisfies the front pre-protection condition, the front anti-collision trigger signal is sent from the controller 611 to the main controller 62, and the main controller 63, for example, the vehicle controller controls the alarm device 50 such as a display, an alarm lamp, or a buzzer to perform sound and light pre-warning to remind the driver, and in an emergency situation, controls the pre-protection device 40 such as an auxiliary brake device or a seat belt pre-tightening device to operate, so as to perform emergency auxiliary braking and protection.
For the set slave controller 612 for the collision already sent, when the slave controller 612 determines that the vehicle collides, for example, when the distance between the vehicle and the preceding vehicle is less than the preset distance according to the detection information of the millimeter wave radar, the slave controller 612 controls the buffer device 30 to start, so as to reduce the damage of the collision to the vehicle and the passengers to the maximum extent.
An ultrasonic ranging radar is adopted in the side anti-collision safety protection, for example, as shown in fig. 3, the ultrasonic ranging radar L1, the ultrasonic ranging radar L2, the ultrasonic ranging radar R1 and the ultrasonic ranging radar R2 are respectively arranged on the left side and the right side, the ultrasonic ranging radar monitors obstacles such as pedestrians, vehicles and the like in visual blind areas of drivers on two sides of the vehicles, when the obstacles are judged to exist, the ultrasonic ranging radar sends a side anti-collision trigger signal to the main controller 62 from the controller 613 or the controller 614, the main controller 62 controls the pre-protection device 40 and the alarm device 50 to be started, timely reminds the drivers to take a series of emergency measures, and the safety of the pedestrians is protected.
In addition, the main controller 62 acquires detection information of a steering wheel angle sensor, a vehicle speed sensor, a temperature sensor, a brake pedal position sensor, and an accelerator pedal sensor to comprehensively sense the driving intention of the driver, and performs active and passive safety protection control in combination with the received anti-collision trigger signal, thereby improving the determination accuracy.
In summary, the vehicle anti-collision system 100 of the embodiment of the present invention adopts a master-slave control mode, the front anti-collision warning employs a millimeter wave radar, the pedestrian protection in the side visual blind area employs an ultrasonic sensor, and the anti-collision buffer device 30 is employed for the collision already issued, and in addition, the main controller 62 determines the driving intention of the driver by combining various sensors such as a steering wheel angle sensor and an accelerator pedal position sensor, so as to implement the longitudinal and transverse active safety protection of the vehicle, and implement the passive safety protection for slowing down the harm of the longitudinal collision already issued. In short, the vehicle anti-collision system 100 integrates the functions of anti-collision early warning, pedestrian protection, reduction of collision degree, and the like, optimizes the functions of the existing anti-collision early warning and pedestrian protection, and provides a more perfect anti-collision scheme for the existing anti-collision system. It can be understood that the anti-collision system 100 can automatically start to work during the processes of high-speed driving, low-speed reversing and turning of the vehicle, greatly improves the coefficients of active safety and passive safety of the vehicle, and is a great improvement in the field of vehicle safety.
Based on the vehicle collision avoidance system of the embodiment of the aspect, the vehicle is proposed by referring to another embodiment of the invention.
Fig. 4 is a block diagram of a vehicle according to an embodiment of the present invention, and as shown in fig. 4, the vehicle 1000 includes the vehicle collision avoidance system 100 described above.
By adopting the vehicle anti-collision system 100 of the embodiment in the aspect, the vehicle 1000 integrates the functions of anti-collision early warning, pedestrian protection and reduction of the collision degree, greatly improves the coefficients of active safety and passive safety of the vehicle, and has more perfect anti-collision.
The following is a vehicle collision avoidance method proposed by an embodiment according to still another aspect of the present invention.
Fig. 5 is a flowchart of a method for preventing collision of a vehicle according to the present invention, as shown in fig. 5, the method for preventing collision of a vehicle comprising the steps of:
and S1, respectively detecting relative driving information of the vehicle and the front vehicle and/or the rear vehicle and obstacle information in a visual blind area of a driver on the side of the vehicle.
For example, relative driving information such as the distance and the speed difference between the vehicle and the front vehicle and/or the rear vehicle is detected through a millimeter wave radar, and obstacle information in a visual blind area of a driver on the side of the vehicle is detected through an ultrasonic ranging radar, and particularly, an obstacle in the wheel difference in the vehicle is detected in real time during turning.
And S2, controlling the pre-protection device, the alarm device and the buffer device of the vehicle according to the relative driving information and the obstacle information.
Specifically, when the relative driving information meets the front pre-protection condition, the pre-protection device is controlled to start and the alarm device is controlled to give an alarm. For example, when it is determined that a collision is about to occur according to a vehicle distance or a speed difference between a vehicle and a preceding vehicle, an alarm device, such as a display, a warning light or an audible alarm buzzer, is controlled to be started to warn, and a pre-protection device is controlled to be started, such as an auxiliary braking device or a safety belt pre-protection device, to start an anti-collision pre-protection effect, so as to achieve anti-collision pre-protection.
Or when the vehicle is judged to collide according to the relative driving information, the buffer device is controlled to start and the alarm device is controlled to give an alarm. For example, when the vehicle is judged to collide according to the vehicle distance, for example, the vehicle distance is zero, the buffer device is controlled to be started to protect the vehicle and passengers, and the alarm device is controlled to warn, so that the collision degree is reduced when the collision occurs.
Or when judging that the obstacles exist in the driver vision blind area according to the obstacle information, controlling the pre-protection device to start and controlling the alarm device to give an alarm. For example, when the side surface is judged to have an obstacle according to the detected obstacle information, particularly when the obstacle is detected to exist in the difference of the wheels in the vehicle in the turning process, the pre-protection device and the alarm device are controlled to be started, and a driver is reminded to take a series of emergency measures in time to protect pedestrians.
According to the vehicle anti-collision method provided by the embodiment of the invention, the buffer device, the pre-protection device and the alarm device are controlled according to the detected relative driving information and the detected obstacle information, and the functions of anti-collision early warning, pedestrian protection and reduction of the sent collision degree are integrated, so that the coefficients of active safety and passive safety of the vehicle are greatly improved, and the anti-collision is more perfect.
In some embodiments of the invention, the vehicle collision avoidance method further comprises: detecting a current running state parameter of the vehicle; judging the driving intention of the driver according to the current running state parameters; and controlling a pre-protection device and an alarm device of the vehicle according to the driving intention of the driver, the relative driving information of the vehicle and the front vehicle and/or the rear vehicle and the obstacle information in the vision blind area of the driver.
For example, it is determined that the vehicle is decelerating according to the brake pedal position, the accelerator pedal position and the detection information of the speed sensor, and at this time, it is determined that the speed difference between the vehicle and the front vehicle is greater than the preset speed difference when the front anti-collision trigger signal is received, and front anti-collision is required, and the determination of the two is integrated, and if no collision occurs, the front anti-collision control may not be performed; for another example, if the side anti-collision trigger signal is received and it is determined that the vehicle does not turn according to the detection information of the steering wheel angle sensor, the side anti-collision control may not be performed. Thereby reducing false alarm rate and false alarm rate.
In summary, the vehicle anti-collision method provided by the embodiment of the invention comprehensively considers the functions of anti-collision early warning, pedestrian protection, reduction of the collision degree and the like, optimizes the existing anti-collision early warning and pedestrian protection functions, and provides a more complete anti-collision scheme compared with the existing anti-collision system.
It should be noted that in the description of the present specification, any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A vehicle collision avoidance system, comprising:
the front detection device is used for detecting relative driving information of the vehicle and a front vehicle and/or a rear vehicle;
the side surface detection device is used for detecting the barrier information in the visual blind area of the driver on the side surface of the vehicle;
a buffer device for starting when the vehicle is in collision;
a pre-protection device and an alarm device;
and the control device controls the buffer device, the pre-protection device and the alarm device according to the relative driving information and the obstacle information.
2. The vehicle collision avoidance system of claim 1, wherein the control device comprises a master controller and a slave controller, wherein,
the slave controller is used for respectively acquiring the relative driving information and the obstacle information, sending a front anti-collision trigger signal to the master controller when the relative driving information meets a front pre-protection condition, controlling the buffer device to start and sending a sent collision signal to the master controller when judging that the vehicle collides according to the relative driving information, and sending a side anti-collision trigger signal to the master controller when judging that an obstacle exists in the driver vision blind area according to the obstacle information;
and the main controller controls the pre-protection device and the alarm device according to the front anti-collision trigger signal, the sent collision signal and the side anti-collision trigger signal respectively.
3. The vehicle collision avoidance system of claim 2, wherein the vehicle collision avoidance system further comprises:
the state parameter detection device is used for detecting current operation state parameters of the vehicle, the main controller judges the driving intention of the driver according to the current operation state parameters, and controls the pre-protection device and the alarm device according to the driving intention of the driver, the front anti-collision trigger signal and the side anti-collision trigger signal.
4. The vehicle collision avoidance system of claim 1, wherein the front side detection device comprises a millimeter wave radar.
5. The vehicle collision avoidance system of claim 1, wherein the side detection device comprises an ultrasonic range radar.
6. The vehicle collision avoidance system of claim 1, wherein the pre-protection device comprises an auxiliary brake device, a seat belt pretensioner.
7. The vehicle collision avoidance system of claim 2, wherein the master controller comprises a vehicle control unit of the vehicle.
8. The vehicle collision avoidance system of claim 3, wherein the state parameter detection device comprises at least one of an accelerator pedal position sensor, a brake pedal position sensor, a temperature sensor, a vehicle speed sensor, and a steering wheel angle sensor.
9. A vehicle comprising a vehicle collision avoidance system as claimed in any one of claims 1 to 8.
10. A method for preventing collision of a vehicle, comprising the steps of:
respectively detecting relative driving information of a vehicle and a front vehicle and/or a rear vehicle and barrier information in a driver vision blind area on the side surface of the vehicle; and
and controlling a pre-protection device, an alarm device and a buffer device of the vehicle according to the relative driving information and the obstacle information.
11. The method for preventing collision of a vehicle according to claim 10, wherein the controlling of the pre-protection device, the warning device, and the buffer device of the vehicle based on the relative driving information and the obstacle information further comprises:
when the relative driving information meets the front pre-protection condition, controlling the pre-protection device to start and controlling the alarm device to give an alarm; or,
when the vehicle is judged to be collided according to the relative driving information, the buffer device is controlled to be started and the alarm device is controlled to give an alarm; or,
and when judging that the obstacles exist in the driver vision blind area according to the obstacle information, controlling the pre-protection device to start and controlling the alarm device to give an alarm.
12. The vehicle collision avoidance method of claim 10, further comprising:
detecting a current operating state parameter of the vehicle;
judging the driving intention of the driver according to the current running state parameters; and
and controlling a pre-protection device and an alarm device of the vehicle according to the driving intention of the driver, the relative driving information and the obstacle information.
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| CN201610739366.XA CN107776525A (en) | 2016-08-26 | 2016-08-26 | Vehicle collision avoidance system, vehicle and its collision-proof method |
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