CN201494425U - Automobile emergency braking device - Google Patents
Automobile emergency braking device Download PDFInfo
- Publication number
- CN201494425U CN201494425U CN200920168929XU CN200920168929U CN201494425U CN 201494425 U CN201494425 U CN 201494425U CN 200920168929X U CN200920168929X U CN 200920168929XU CN 200920168929 U CN200920168929 U CN 200920168929U CN 201494425 U CN201494425 U CN 201494425U
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Abstract
The utility model discloses an automobile emergency braking device. The device comprises a distance detecting instrument, a throttle acceleration sensor, a central processing unit, an ROM memory unit, an engine control unit, a throttle control unit, a brake control unit and a power supply, wherein, all the distance detecting instrument, the throttle acceleration sensor, the ROM memory unit, the engine control unit, the throttle control unit, the brake control unit and the power supply are all connected with the central processing unit; and the distance detecting instrument is arranged at the front part of an automobile. The device can obtain testing data of the safe distance of a produced automobile under different speeds, and the cost of safe distance test is respectively low; and the weight of the automobile is lightest when the automobile is handed over, so that the safe distance testing data which is tested at this time is longer than that is tested when the automobile is fully loaded, and the reliability of safe distance when the automobile is used in practical in insured. The utility model has the advantages that the popularization cost is respectively low, and the engine, the throttle and the brake can be processed at the same time, thereby considerably improving the reliability and the safety of the system.
Description
Technical field
The utility model relates to the vehicle electric field of traffic safety, especially a kind of automobile emergency brake.
Background technology
Along with the raising day by day of expanding economy and masses' level of consumption, automobile is just progressing into more family as a kind of walking-replacing tool.But along with popularizing of automobile, the traffic accident incidence is again constantly soaring.And in the middle of a lot of grave accidents, driver's maloperation has accounted for very important reasons again, and this driving level that need rely on the driver to improve constantly self could reduce and avoid to take place.And in driving procedure, when emergency case appears in the place ahead, such as front vehicles sudden stop or article drop, the unexpected jaywalk of pedestrian, the driver is owing to reason such as lacking experience or overstretched, should sudden stop, but mis-accelerator pressing causes the automobile brish acceleration, traffic accident such as just cause vehicle rear-end collision easily, thrust into.When the vehicle high-speed cruising, very easily lead to great safety misadventure especially.Owing to complete performance when participating in the cintest under the emergency case, so along with the growth of driving age and enriching of experience, the driver can not avoid the generation of this accident fully by the driver.Simultaneously, when reversing automobile, also similar accident can appear.
Even to this day, though it is though quite flourishing around the automobile industry development vehicle electronics that gets up, but automobile is made aspect the brake intelligentized paces at driver's mis-accelerator pressing and is still relatively stagnated, people such as Shanghai Communications University's Zhang Xiubin propose (patent publication No. CN 101073987A), according to oil mass sudden change amount, then judge driver's maloperation if surpass threshold value, though this judgement is simple, but influenced some special requirement in particular cases, when promptly pursuing and attacking the bandit, if, under this system, still can be judged as maloperation suddenly to the automobile brish acceleration such as the police, thereby cause automobile to quicken rapidly, affect the opportunity of chasing adversely.Because vehicle discharge capacity difference, the oil mass threshold value just differs widely, and must experimentize repeatedly with the oil mass threshold value of the vehicle of determining each discharge capacity to different vehicles like this, promotes the cost too expensive.
The utility model content
The utility model proposes a kind of later-model accelerator error-stepping emergent braking device for addressing the above problem, and is used for the driver owing to lacking experience, when reasons such as fatigue, anxiety cause misoperation accelerator pedal, still can making the device of automobile generation braking effect.
The utility model is achieved through the following technical solutions:
A kind of automobile emergency brake, it is characterized in that: this device comprises the distance detecting instrument that is used for monitoring in real time distance between the place ahead obstacle and the car body, be used to detect the throttle acceleration pick-up of the instant displacement recruitment of throttle, the central processing unit that is used for each test data of computing, the ROM memory cell that is used for the storage safe distance threshold, be used to force the control unit of engine of engine off, be used to control the Throttle Opening Control unit of turnoff the fuel, the brake control unit and the power supply that are used for emergency brake, described distance detecting instrument, the throttle acceleration pick-up, the ROM memory cell, control unit of engine, the Throttle Opening Control unit, the brake control unit, power supply all is connected with central processing unit, and described distance detecting instrument is installed on the front portion of car.
Also be provided with the device switch of its startup of control, described device switch is connected with power supply, and power supply connects central processing unit again.Police car, military vehicle, medical truck are equipped this switch, so that carry out special spy under special circumstances, the normal domestic vehicle is then cancelled this switch, start this device when vehicle launch.
What store in the ROM memory cell is the safety distance information in the different speed of a motor vehicle that automobile is provided with when dispatching from the factory.
Described distance detecting instrument is a millimeter wave radar, perhaps laser ranging instrument, perhaps infrared distance measurement instrument, perhaps distance mearuring equipment such as machine vision distance mearuring equipment.
Described power supply can be vehicle power, perhaps independent current source.
Principle of the present utility model is as follows:
At first open this device switch, in existing vehicle velocity V
1Detect distance L between the place ahead obstacle and the Ben Che in real time by the distance detecting instrument that is installed on automotive front, and beam back central processing unit down;
Detect the instant displacement recruitment of throttle by the throttle acceleration pick-up, and beam back the instant variation delta V that central processing unit is calculated car speed under this acceleration/accel, the V before the stack
1Generate new vehicle velocity V
2
Automobile is under the different speed of a motor vehicle and general road condition, during sudden stop, and the safety distance between the fixed obstacle of the place ahead be different (this moment automobile the absolute velocitye relative velocity between automobile and the obstacle just, the speed of obstacle and car speed vertical direction does not need to consider, only need to calculate the speed on same direction between the two), can determine by test.What store in the ROM memory cell is exactly about the safety distance information under the different speed of a motor vehicle conditions.Can be extracted immediately by central processing unit;
To calculate V
2With distance L put into central processing unit and ROM memory cell safety distance threshold value compare, in case find at V
2Under the condition, L be lower than safety distance threshold value, judge that then the operation of mis-accelerator pressing takes place the driver;
This moment, central processing unit issued a signal to control unit of engine, Throttle Opening Control unit and brake control unit simultaneously, control unit of engine is forced engine off, the Throttle Opening Control unit is turnoff the fuel immediately, the control unit emergency brake of braking simultaneously, three unit start simultaneously, to guarantee the perfectly safe of emergency brake.
The utility model has been obtained following beneficial effect than prior art:
This device can make automobile vendor obtain to dispatch from the factory vehicle under the different speed of a motor vehicle safety distance test figures, even if it is also lower to carry out safety distance experimentation cost; And automobile when dispatching from the factory weight the lightest, the safety distance test figures ratio that obtain this moment is in longer (the at full load automotive dead weight increase of automobile at full load, thereby shorter in same speed of a motor vehicle lower slider distance), thus when having guaranteed the actual use of automobile safety distance reliability; The popularization cost of this device is lower, simultaneously driving engine, throttle, brake is handled, and has so just increased substantially the reliability and the safety of system.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Wherein, 1 is the distance detecting instrument, and 2 is the throttle acceleration pick-up, and 3 is central processing unit, and 4 is the ROM memory cell, and 5 is control unit of engine, and 6 is the Throttle Opening Control unit, and 7 are the brake control unit, and 8 is the device switch, and 9 is power supply.
The specific embodiment
A kind of automobile emergency brake, this device comprises the distance detecting instrument that is used for monitoring in real time distance between the place ahead obstacle and the car body, be used to detect the throttle acceleration pick-up of the instant displacement recruitment of throttle, the central processing unit that is used for each test data of computing, the ROM memory cell that is used for the storage safe distance threshold, be used to force the control unit of engine of engine off, be used to control the Throttle Opening Control unit of turnoff the fuel, the brake control unit and the power supply that are used for emergency brake, described distance detecting instrument, the throttle acceleration pick-up, the ROM memory cell, control unit of engine, the Throttle Opening Control unit, the brake control unit, power supply all is connected with central processing unit, and described distance detecting instrument is installed on the front portion of car.
Also be provided with the device switch of its startup of control, described device switch is connected with power supply, and power supply connects central processing unit again.Police car, military vehicle, medical truck are equipped this switch, so that carry out special spy under special circumstances, the normal domestic vehicle is then cancelled this switch, start this device when vehicle launch.
Principle of the present utility model is as follows:
At first open this device switch, in existing vehicle velocity V
1Detect distance L between the place ahead obstacle and the Ben Che in real time by the distance detecting instrument that is installed on automotive front, and beam back central processing unit down;
Detect the instant displacement recruitment of throttle by the throttle acceleration pick-up, and beam back the instant variation delta V that central processing unit is calculated car speed under this acceleration/accel, the V before the stack
1Generate new vehicle velocity V
2
Automobile is under the different speed of a motor vehicle and general road condition, during sudden stop, and the safety distance between the fixed obstacle of the place ahead be different (this moment automobile the absolute velocitye relative velocity between automobile and the obstacle just, the speed of obstacle and car speed vertical direction does not need to consider, only need to calculate the speed on same direction between the two), can determine by test.What store in the ROM memory cell is exactly about the safety distance information under the different speed of a motor vehicle conditions.Can be extracted immediately by central processing unit;
To calculate V
2With distance L put into central processing unit and ROM memory cell safety distance threshold value compare, in case find at V
2Under the condition, L be lower than safety distance threshold value, judge that then the operation of mis-accelerator pressing takes place the driver;
This moment, central processing unit issued a signal to control unit of engine, Throttle Opening Control unit and brake control unit simultaneously, control unit of engine is forced engine off, the Throttle Opening Control unit is turnoff the fuel immediately, the control unit emergency brake of braking simultaneously, three unit start simultaneously, to guarantee the perfectly safe of emergency brake.
The utility model will be described in further detail in conjunction with the accompanying drawings, be example with the civil car.
Behind the car engine, this device starts.Suppose a certain vehicle vehicle 100 kilometers/hour of speed per hours, under the general dry pavement condition, coasting distance is 25 meters during emergency brake.The distance detecting instrument 1 that automotive front is installed is a millimeter wave radar, the instant distance of detections of radar the place ahead obstacle is 15 meters, this moment, the speed of a motor vehicle was 70 kilometers/hour, suddenly the driver promptly quickens, throttle acceleration pick-up 2 will speed up signal and sends to central processing unit 3, instantaneous velocity through the measuring and calculating automobile will soar to 100 kilometers/hour in 1 second, with ROM memory cell 4 in the storage safety distance information compare after, find to have reached the safety distance threshold value that requires when dispatching from the factory, then the operation of mis-accelerator pressing has taken place in central processing unit judgement driver, just issue a signal to control unit of engine 5 immediately, Throttle Opening Control unit 6 and brake control unit 7, forced engine is flame-out, turnoff the fuel, and emergency brake, since central processing unit when calculating above-mentioned situation required time only for microsecond to a millisecond magnitude, so in time delay when emergency brake can be avoided manual operation fully, thereby can avoid knocking into the back or knock the generation of traffic accidents such as people or thing.
Claims (4)
1. automobile emergency brake, it is characterized in that: this device comprises the distance detecting instrument (1) that is used for monitoring in real time distance between the place ahead obstacle and the car body, be used to detect the throttle acceleration pick-up (2) of the instant displacement recruitment of throttle, the central processing unit (3) that is used for each test data of computing, the ROM memory cell (4) that is used for the storage safe distance threshold, be used to force the control unit of engine (5) of engine off, be used to control the Throttle Opening Control unit (6) of turnoff the fuel, the brake control unit (7) and the power supply (9) that are used for emergency brake, described distance detecting instrument (1), throttle acceleration pick-up (2), ROM memory cell (4), control unit of engine (5), Throttle Opening Control unit (6), brake control unit (7), power supply (9) all is connected with central processing unit (3), and described distance detecting instrument (1) is installed on the front portion of car.
2. a kind of automobile emergency brake according to claim 1 is characterized in that: also be provided with the device switch (8) of its startup of control, described device switch (8) is connected with power supply (9), and power supply (9) connects central processing unit (3) again.
3. a kind of automobile emergency brake according to claim 1 is characterized in that: described distance detecting instrument (1) is a millimeter wave radar, perhaps laser ranging instrument, perhaps infrared distance measurement instrument, perhaps machine vision distance mearuring equipment.
4. a kind of automobile emergency brake according to claim 1 is characterized in that: described power supply (9) is a vehicle power, perhaps independent current source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920168929XU CN201494425U (en) | 2009-08-07 | 2009-08-07 | Automobile emergency braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920168929XU CN201494425U (en) | 2009-08-07 | 2009-08-07 | Automobile emergency braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201494425U true CN201494425U (en) | 2010-06-02 |
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ID=42437633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920168929XU Expired - Fee Related CN201494425U (en) | 2009-08-07 | 2009-08-07 | Automobile emergency braking device |
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| Country | Link |
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| CN (1) | CN201494425U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887074A (en) * | 2011-07-21 | 2013-01-23 | 鸿富锦精密工业（深圳）有限公司 | Vehicle safety control system and method |
| CN102991351A (en) * | 2012-11-30 | 2013-03-27 | 淮北矿业相山水泥有限责任公司 | Automatic correction device for mistaken stepping on accelerator |
| CN103640561A (en) * | 2013-12-17 | 2014-03-19 | 林水龙 | System and method for preventing accelerator from being stepped on mistakenly |
| CN105667472A (en) * | 2016-02-17 | 2016-06-15 | 中山浩发节能科技有限公司 | Infrared ray distance measurement auxiliary braking device |
| CN110382324A (en) * | 2017-03-15 | 2019-10-25 | 日立汽车系统株式会社 | Controller of vehicle and control method for vehicle |
-
2009
- 2009-08-07 CN CN200920168929XU patent/CN201494425U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887074A (en) * | 2011-07-21 | 2013-01-23 | 鸿富锦精密工业（深圳）有限公司 | Vehicle safety control system and method |
| CN102991351A (en) * | 2012-11-30 | 2013-03-27 | 淮北矿业相山水泥有限责任公司 | Automatic correction device for mistaken stepping on accelerator |
| CN103640561A (en) * | 2013-12-17 | 2014-03-19 | 林水龙 | System and method for preventing accelerator from being stepped on mistakenly |
| CN103640561B (en) * | 2013-12-17 | 2015-12-30 | 林水龙 | A kind of system and method for accelerator stepping misoperation preventing |
| CN105667472A (en) * | 2016-02-17 | 2016-06-15 | 中山浩发节能科技有限公司 | Infrared ray distance measurement auxiliary braking device |
| CN110382324A (en) * | 2017-03-15 | 2019-10-25 | 日立汽车系统株式会社 | Controller of vehicle and control method for vehicle |
| CN110382324B (en) * | 2017-03-15 | 2022-07-22 | 日立安斯泰莫株式会社 | Vehicle control device and vehicle control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20100807 |