CN204383457U - A kind of vehicle Collision avoidance device - Google Patents
A kind of vehicle Collision avoidance device Download PDFInfo
- Publication number
- CN204383457U CN204383457U CN201420789995.XU CN201420789995U CN204383457U CN 204383457 U CN204383457 U CN 204383457U CN 201420789995 U CN201420789995 U CN 201420789995U CN 204383457 U CN204383457 U CN 204383457U
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- car
- collision avoidance
- master control
- control system
- sensor
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Abstract
The utility model discloses a kind of vehicle Collision avoidance device, comprise Vehicular radar system, from car sensor, actuating unit, master control system, describedly to be connected with master control system with Vehicular radar system from car sensor, described master control system is connected with actuating unit, and described actuating unit is connected with from car; The CPU of above-mentioned master control system, by each data of receiving sensor, carries out the judgement of safe condition, and sends necessary collision avoidance instruction.Active safety collision avoidance devices and methods therefor of the present utility model, can by trailer-mounted radar and the real time data gathered from car sensor-based system, judge from the safe condition belonging to car, not good in the chaufeur state of mind, or the generation of traffic accident can be avoided by actv. in scatterbrained situation.
Description
Technical field
The utility model relates to a kind of active safety control system, particularly relates to a kind of method of calculating and device thereof of vehicle active safety distance.
Background technology
Along with the develop rapidly of China Automobile Industry, the increase of total vehicle, the traffic accident of nationwide and the quantity of personal casualty are also in continuous increase, and therefore the safety of automobile becomes the focus of people's concern gradually.
The safety of automobile divides " active safety " and " passive security " two major parts.Energy-absorbing vehicle body, safety air bag, safety strap can only solve the problem after contingency, and therefore these systems can only be all passive security, and passive security plays a protective role when colliding; Active safety system then takes precautions against the generation of traffic accident in advance, more can ensure the safety of driver, and therefore active safety system more will be concerned by people than passive safety system.Active safety technologies content height not only directly affects the safety performance of vehicle, and can increase the value of automobile itself.The automobile active safety technology of current main flow mainly comprises ABS (antiblock device), EBD (Electric Brake force Distribution,) (electronic braking force distribution), EBA (electronic control auxiliary brake system), TCS (polling power controlling) and ESC (Electric stability control), (electronic stability control) etc.
But above-mentioned technology cannot shift to an earlier date trouble-saving generation, cannot the chaufeur state of mind be not good more yet, the generation of actv. minimizing accident in scatterbrained situation.For this reason, necessary utility model Automotive active anti-collision system, when chaufeur is not taken measures, can take collision avoidance measure, the generation of Accident prevention in advance.
Existing collision avoidance distance model is too complicated, and is much empirical equation, can not meet the complex situations of Chinese road conditions, and input parameter is too various, well can not react real-time road conditions, have very high rate of false alarm.
Utility model content
The utility model needs the problem solved to be a kind of vehicle Collision avoidance distance calculating method of utility model and device thereof.
In order to realize above-mentioned utility model function, the technical solution of the utility model is:
A kind of vehicle Collision avoidance device, comprise Vehicular radar system, from car sensor, actuating unit, master control system, describedly be connected with master control system with Vehicular radar system from car sensor, described master control system is connected with actuating unit, and described actuating unit is connected with from car;
Described Vehicular radar system is for obtaining speed and the acceleration/accel of target vehicle, and the relative distance between two cars;
Describedly directly be connected for gathering speed, the acceleration information from car with master control system from car sensor;
Described actuating unit is for the size of the aperture and brake-pressure that control throttle gate;
The CPU of described master control system, by each data of receiving sensor, carries out the judgement of safe condition, and sends necessary collision avoidance instruction.
Further, the model of described Vehicular radar system is dish tiger X8S.
Further, the described sensor model number from car acceleration/accel is the MEAS sensor of 52.
Further, described master control system adopts and flies to sing E8043NAVI.
The beneficial effects of the utility model are:
1) a kind of vehicle active safety collision avoidance device of proposing of the utility model and distance calculating method thereof, by the real-time speed of automobile, acceleration/accel, real-time relative distance is as input.
2) compared by actual distance and theory α coefficient distance, simplify the input of system, accurately can judge the safe condition from car by fast speed, and under different safe conditions, take different collision avoidance measures, rate of false alarm can be reduced by actv..
3) not good in the chaufeur state of mind, in scatterbrained situation, automatically detect the safety case from car, and when chaufeur is not adopted an effective measure, automatically take brake measure.Greatly improve the safety of chaufeur and passenger.
Therefore active safety collision avoidance devices and methods therefor of the present utility model, can by trailer-mounted radar and the real time data gathered from car sensor-based system, judge from the safe condition belonging to car, not good in the chaufeur state of mind, or the generation of traffic accident can be avoided by actv. in scatterbrained situation.
Accompanying drawing explanation
Fig. 1 is apparatus module block diagram of the present utility model;
Fig. 2 is the diagram of circuit of method of the present utility model.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, structural principle of the present utility model is described in further detail.
As shown in Figure 1, a kind of method of calculating and device thereof of vehicle Collision avoidance distance comprise: Vehicular radar system, from car sensing system, and control unit, braking force actuating unit.Described Vehicular radar system, be connected with control unit from car sensing system, the real time data of detection is delivered to control unit, and control command is delivered to actuating unit by control unit, actuating unit controls automobile brake pedal pressure, and the aperture size of throttle gate.The model of described Vehicular radar system is dish tiger X8S; The described sensor model number from car acceleration/accel is the MEAS sensor of 52; Described master control system adopts and flies to sing E8043NAVI.
Vehicular radar system described in the utility model is for obtaining speed and the acceleration/accel of target vehicle, and the relative distance between two cars.Describedly directly to be connected with CPU from car sensor, for obtaining from data such as the Velocity-accelerations of car.Described actuating unit is for the size of the aperture and brake-pressure that control throttle gate.Described CPU, by each data of receiving sensor, carries out the judgement of safe condition, and sends collision avoidance instruction.
Calculation procedure for vehicle safety state comprises: by trailer-mounted radar first judge target vehicle with from car whether in same track.If on same track, according to the speed v of the target vehicle that trailer-mounted radar records
2with acceleration/accel a
2, from the speed v from car that car sensor obtains
1and a
1calculate the real-time early warning safety distance of two cars, the relative distance s simultaneously recorded with radar
1compare, judge from the safe class belonging to car.And take different safety measures.
The active forewarning function that the utility model possesses, the diagram of circuit shown in composition graphs 2, first records the Relative vertical distance s of two cars by trailer-mounted radar
1, d
1, judge target vehicle with from car whether on same track, if enter next step on same track.
The speed from car and target vehicle obtained by radar and acceleration/accel v
1, v
2, a
1and a
2, by safety distance and the minimum safe distance of formulae discovery two car, judge safety case according to following situation:
Work as v
1≤ v
2, a
1≤ a
2time, work as s
1during > 0, in a safe condition from car.
Work as v
1≤ v
2, a
1> a
2time, work as s
1during > 0, from the temporary transient safety of car, and continue two real-time car safety distances of monitoring and the relative speed of a motor vehicle, acceleration/accel.Work as v
1> v
2, a
1< a
2time, s
0=[v
1× (v
1-v
2)/(a
1-a
2)+1/2 × a
1× (v
1-v
2)
2/ (a
1-a
2)
2]-v
2× (v
1-v
2)/(a
1-a
2)-1/2 × a
2× (v
1-v
2)
2/ (a
1-a
2)
2if s
1> s
0, then belong to safe condition from car, there is no collision risk, and continue two real-time car safety distances of monitoring and the relative speed of a motor vehicle, acceleration/accel.If s
1≤ s
0, then belong to non-secure states from car, have collision risk, safety light becomes redness, and gives the alarm, if chaufeur is not still taken measures, automatically taking to reduce throttle opening is original 3/4, calculates minimum safe distance s simultaneously
3.If s
1≤ s
3, then maximum deceleration is taked to be 6m/s
2brake, ensure the safety of passenger.
Work as v
1>=v
2, a
1>=a
2time, now the safe early warning distance of two cars is:
D
1be two cars static time relative distance, in the utility model patent, get d
1=3m
Work as s
1> s
2time, there is no collision risk from car, and continue two real-time car safety distances of monitoring and the relative speed of a motor vehicle, acceleration/accel.
Work as s
1≤ s
2time, belong to non-secure states from car, have collision risk, safety light becomes redness, and gives the alarm, if chaufeur is not still taken measures, automatically taking to reduce throttle opening is original 3/4, ensures the safety of passenger but can not cause the excessive discomfort of passenger.Now the minimum safe distance of two cars is:
work as s
1≤ s
3, belong to from car the situation of being in extreme danger, automatically take maximum deceleration to be 6m/s
2slow down.Ensure the safety of passenger.
A kind of vehicle active safety collision avoidance device of this patent utility model, by the real-time speed of automobile, acceleration/accel, real-time relative distance is as input.Compared by actual distance and theory α coefficient distance, simplify the input of system, accurately can judge the safe condition from car by fast speed, and under different safe conditions, take different collision avoidance measures, rate of false alarm can be reduced by actv..Not good in the chaufeur state of mind, in scatterbrained situation, automatically detect the safety case from car, and when chaufeur is not adopted an effective measure, automatically take brake measure.Greatly improve the safety of chaufeur and passenger.
The above, be only the utility model preferably detailed description of the invention, but protection domain of the present utility model is not limited thereto.Every utilize the utility model specification sheets and accompanying drawing content to do equivalent structure or equivalent to replace or equivalent flow change, or be directly or indirectly used in other technical field, all should be encompassed in scope of patent protection of the present utility model.
Claims (4)
1. a vehicle Collision avoidance device, it is characterized in that, comprise Vehicular radar system, from car sensor, actuating unit, master control system, describedly to be connected with master control system with Vehicular radar system from car sensor, described master control system is connected with actuating unit, and described actuating unit is connected with from car;
Described Vehicular radar system is for obtaining speed and the acceleration/accel of target vehicle, and the relative distance between two cars;
Describedly directly be connected for gathering speed, the acceleration information from car with master control system from car sensor;
Described actuating unit is for the size of the aperture and brake-pressure that control throttle gate;
The CPU of described master control system is used for each data by receiving sensor, carries out the judgement of safe condition, and sends necessary collision avoidance instruction.
2. vehicle Collision avoidance device according to claim 1, is characterized in that, the model of described Vehicular radar system is dish tiger X8S.
3. vehicle Collision avoidance device according to claim 1, is characterized in that, the described sensor model number from car acceleration/accel is the MEAS sensor of 52.
4. vehicle Collision avoidance device according to claim 1, is characterized in that, described master control system adopts and flies to sing E8043NAVI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789995.XU CN204383457U (en) | 2014-12-15 | 2014-12-15 | A kind of vehicle Collision avoidance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420789995.XU CN204383457U (en) | 2014-12-15 | 2014-12-15 | A kind of vehicle Collision avoidance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204383457U true CN204383457U (en) | 2015-06-10 |
Family
ID=53356201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420789995.XU Expired - Fee Related CN204383457U (en) | 2014-12-15 | 2014-12-15 | A kind of vehicle Collision avoidance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204383457U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494550A (en) * | 2014-12-15 | 2015-04-08 | 江苏大学 | Active anticollision device of vehicle and calculating method of anticollision distance |
| CN105015548A (en) * | 2015-07-23 | 2015-11-04 | 江苏大学 | Longitudinal collision avoidance reminding and automatic following integration system and method |
| CN105346388A (en) * | 2015-11-27 | 2016-02-24 | 江苏大学 | Auxiliary system for automobile uphill and control method of auxiliary system |
| CN105667506A (en) * | 2016-03-15 | 2016-06-15 | 江苏大学 | Dynamic emergency collision avoidance control method of vehicle |
| CN108238046A (en) * | 2016-12-26 | 2018-07-03 | 江苏卡威汽车工业集团股份有限公司 | A kind of Active collision avoidance system |
| CN112298172A (en) * | 2020-10-20 | 2021-02-02 | 江苏亚楠电子科技有限公司 | Vehicle-mounted active safety system, method and storage medium |
-
2014
- 2014-12-15 CN CN201420789995.XU patent/CN204383457U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494550A (en) * | 2014-12-15 | 2015-04-08 | 江苏大学 | Active anticollision device of vehicle and calculating method of anticollision distance |
| CN105015548A (en) * | 2015-07-23 | 2015-11-04 | 江苏大学 | Longitudinal collision avoidance reminding and automatic following integration system and method |
| CN105346388A (en) * | 2015-11-27 | 2016-02-24 | 江苏大学 | Auxiliary system for automobile uphill and control method of auxiliary system |
| CN105667506A (en) * | 2016-03-15 | 2016-06-15 | 江苏大学 | Dynamic emergency collision avoidance control method of vehicle |
| CN108238046A (en) * | 2016-12-26 | 2018-07-03 | 江苏卡威汽车工业集团股份有限公司 | A kind of Active collision avoidance system |
| CN112298172A (en) * | 2020-10-20 | 2021-02-02 | 江苏亚楠电子科技有限公司 | Vehicle-mounted active safety system, method and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20171215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |