CN204548096U - Automatic gear car based on safety arrestment is blown out control system - Google Patents
Automatic gear car based on safety arrestment is blown out control system Download PDFInfo
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- CN204548096U CN204548096U CN201520201717.2U CN201520201717U CN204548096U CN 204548096 U CN204548096 U CN 204548096U CN 201520201717 U CN201520201717 U CN 201520201717U CN 204548096 U CN204548096 U CN 204548096U
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Abstract
The utility model relates to a kind of automatic gear car based on safety arrestment and to blow out control system, comprise Central Processing Unit (CPU), control unit of engine, control unit for automatic shift and brake system control unit, control command is sent to control unit of engine by Central Processing Unit (CPU) respectively, control unit for automatic shift and brake system control unit, control system also comprises device for monitoring tyre pressure, yaw-rate sensor and micro controller system, the tire pressure of each wheel monitored and automobile yaw velocity are sent to micro controller system by device for monitoring tyre pressure and yaw-rate sensor respectively, micro controller system is analyzed tire condition and is uploaded to Central Processing Unit (CPU), the utility model increases brake-pressure control apparatus, according to the distance of preceding object thing, and regulating brake force, thus realize stopping steadily, fast when blowing out object.
Description
Technical field
The utility model belongs to field of automobile control, is specifically related to the safe braking control system of a kind of automatic gear car when blowing out and method.
Background technology
At present, automobile in motion, when travelling especially on a highway, if wheel occurs blow out (particularly front-wheel), the phenomenon such as direction out of control, rollover will be there is, cause serious traffic accident, even can there is a chain of tragic incident of colliding, bring massive losses to family and society.Statistical information according to relevant departments shows: the number of the annual death because of high-speed tire explosion in the whole world accounts for 50% of freeway accident death tolls, and the sudden traffic accident 70% on China Expressway is caused by automobile flat tire.In order to solve this problem, relevant scholar and technical personnel have carried out large quantity research, also achieve abundant achievement, specifically have following a few class.The first kind changes tire construction, tire is become polyembryony structure, or on the wheel hub of inside tires, weighting material is installed, even if blown out, also can travel by of short duration maintenance vehicle, the drawback of this type of patent is that tire construction is complicated, if polyembryony structure, be also equal by the air pressure of each for very difficult guarantee tire, cause whole wear on tyres uneven; If install weighting material on wheel hub, also will increase vehicle wheel rotation inertia, kinetic balance also needs to readjust.Equations of The Second Kind patent is when a tire burst, control setup is rapidly by another coaxial tyre puncture, the theoretical running radius of tire of guarantee two tires is the same, reduce running out the way, the drawback of this type of patent be control complicated, and when tire is intact, make a mistake signal or false command time,, can traffic accident be there is on the contrary in the wheel punctured.3rd class is when blowing out, and by igniting gunpowder rapidly to tyre-burst blow, the drawback of this type of patent increases wheel mass and unbalance dynamic, and once blow out, is difficult to maintain vehicle balance by inflation.4th class patent is when blowing out, adopt direction self-locking device, avoid running out the way, the drawback of this type of patent is the radius of gyration different (after blowing out) of two coaxial wheels, if by steering lock after death, will cause to a direction sideslip, this type of technology is in presentation conceptual phase, achievement in research is little, and does not have rescue function.5th class patent is when blowing out, and signal of tyre burst is delivered to Central Processing Unit (CPU) by control setup, controls brake and until stop, the drawback of this type of patent is that deceleration/decel is excessive, and road holding is bad.6th class patent is when blowing out, and by radar velocity measurement, judges the vehicle distances at rear, and then determines whether brake, but when blowing out, the accident collided is mainly in front, instead of rear.
In sum, all there is drawback in above-mentioned a few class patents, the correct processing method that high-speed tire explosion occurs should be: when blowing out, chaufeur will hold bearing circle, keeps direction to stablize, then rob fast " low grade ", driving engine is utilized to brake, until the speed of a motor vehicle lowers, when the speed of a motor vehicle is higher, if there is no emergency brake pressure-regulating device, brake pedal can not be stepped on.In theory even so, but occur high-speed tire explosion time, chaufeur (chaufeur of especially lacking experience) accomplishes this step by being difficult to, and therefore the high-speed tire explosion overwhelming majority all major traffic accidents will occur.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of automatic gear car based on safety arrestment to blow out control system (at present, in sedan, automatic gear car reaches more than 90% at developed country's proportions such as the U.S. and Japan, also improving year by year in the ratio of China), increase brake-pressure control apparatus, according to the distance of preceding object thing, regulating brake force, thus realize stopping steadily, fast when blowing out object.
The technical solution of the utility model is: a kind of automatic gear car based on safety arrestment is blown out control system, comprise Central Processing Unit (CPU), control unit of engine, control unit for automatic shift and brake system control unit, control command is sent to control unit of engine by Central Processing Unit (CPU) respectively, control unit for automatic shift and brake system control unit, control system also comprises device for monitoring tyre pressure, yaw-rate sensor and micro controller system, the tire pressure of each wheel monitored and automobile yaw velocity are sent to micro controller system by device for monitoring tyre pressure and yaw-rate sensor respectively, micro controller system is analyzed tire condition and is uploaded to Central Processing Unit (CPU).Described control system also comprises speech prompting system, and speech prompting system is connected to micro controller system.Described control system also comprises two twinkle SM signal lamp, and two twinkle SM signal lamp is connected to micro controller system.Described control system also comprises brake lamp, and brake lamp is connected to micro controller system.
Based on an automatic gear car method for controlling tire burst for safety arrestment, comprise the steps: step one: the tire pressure of device for monitoring tyre pressure monitoring automobile, sends to micro controller system by the signal of tyre burst monitored; Step 2: micro controller system inquiry automobile yaw velocity, if confirm automobile flat tire, signal of tyre burst is sent to Central Processing Unit (CPU) by micro controller system; Step 3: Central Processing Unit (CPU) sends three road signals, respectively to control unit of engine, control unit for automatic shift and brake system control unit, control unit of engine, control unit for automatic shift and brake system control unit implement braking maneuver respectively.In described step 3, control unit of engine braking maneuver is specially: control system also comprises engine fuel injector coil, and control unit of engine cuts off fuel injector coil power supply, engine stop fuel feeding, cuts off engine power source.In described step 3, the braking maneuver of control unit for automatic shift is specially: as the speed of a motor vehicle >=60km/h, automatic transmission with hydraulic torque converter is forced to drop to 3 grades by control unit, as the 60km/h > speed of a motor vehicle >=40km/h, automatic transmission with hydraulic torque converter is forced to drop to 2 grades by control unit, as speed of a motor vehicle < 40km/h, automatic transmission with hydraulic torque converter is forced to drop to 1 grade by control unit, until stop.In described step 3: the braking maneuver of brake system control unit is specially: the tire of blowing out is lost braking force, braking force is implemented to its coaxial tire, maintain the yaw velocity before blowing out.Described control method also comprises step 4: as speed of a motor vehicle < 60km/h, or the time in of being less than safety distance with preceding vehicle or obstacle, implements to brake to non-coaxial two wheels of wheel of blowing out, and controls slip rate between 15% ~ 25%.Described control method also comprises step: after confirming automobile flat tire, and micro controller system is by Signal transmissions to speech prompting system, two twinkle SM signal lamp and brake lamp, and control two twinkle SM signal lamp and brake lamp flicker, speech prompting system reminds chaufeur standard operation.
The utility model has following good effect: the utility model has voice operating prompt system when blowing out, avoid chaufeur blow out occur time because of flurried and maloperation, exacerbate the fugitiveness of automobile further; Control two twinkle SM signal lamp work, also allow brake lamp glimmer (not being Chang Liang) simultaneously, give the more effective alarming effect of vehicle below.Implement downshift to automotive engine to control, utilize driving engine to brake, control stability of automobile preferably.Do not implement braking to the tire of blowing out, three remaining tires, according to situations such as yaw velocity, automobile driving speed and leading vehicle distance sizes, implement safety arrestment.Except Jake brake, by stepping on brake pedal, then as the case may be, by control unit, braking is implemented respectively to the wheel not having to blow out, guarantee that vehicle stabilization controls further.
Accompanying drawing explanation
Fig. 1 is the automobile flat tire Control system architecture figure of the utility model detailed description of the invention;
Fig. 2 is the utility model detailed description of the invention downshift control system;
Fig. 3 is the wheel braking Force control system of the utility model detailed description of the invention.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and principle of work, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technical scheme.
Fig. 1 to blow out control system based on the automatic gear car of safety arrestment.The device that the utility model increases is primarily of the near front wheel tire pressure monitoring, off front wheel tire pressure monitoring, left rear wheel tire pressure monitoring, off hind wheel tire pressure monitoring, yaw-rate sensor (automobile of equipment electronics lateral stabilization system (ESP) has this sensor), radar ranging sensor, micro controller system, voice operating prompt system etc., the device using automobile itself is needed to have car speed sensor, 4 wheel speed sensors, brake system control unit, control unit for automatic shift, control unit of engine, Central Processing Unit (CPU), two twinkle SM signal lamp, brake lamp etc.A device for monitoring tyre pressure installed by each tire, when tire pressure reduces fast, then device for monitoring tyre pressure is judged as blowing out, device for monitoring tyre pressure utilizes the mode of transmission over radio, by tire pressure monitoring to signal of tyre burst deliver to micro controller system, when micro controller system receives this signal, need to be undertaken confirming (when blowing out by yaw rate signal, stability of automobile is deteriorated, to Rapid Variable Design be there is in the yaw velocity of automobile, this signal is obtained by yaw-rate sensor), when only having above-mentioned two signals to be all judged as blowing out generation, micro controller system just confirms the accident of blowing out that automobile is real.Then, micro controller system sends signal to two twinkle SM signal lamp by a port, allows left and right turn signal work; Send cyclical signal by b port to brake lamp, allow brake lamp glimmer, the brake lamp of two twinkle SM signal lamp and flicker works simultaneously, can more effective prompting front vehicle chaufeur: abnormal condition appear in front vehicles, controls spacing and This vehicle stops frequently.Once blow out, probably there is flurried situation in chaufeur, because dealing with the harmfulness by increasing the weight of accident further improperly, therefore as the speed of a motor vehicle >=60km/h, micro controller system gives signal by c port to voice operating prompt system, voice system will send " vehicle flat tire, bearing circle of holding with a firm grip, gently touch on the brake ", as speed of a motor vehicle < 60km/h or the time in of being less than safety distance with preceding object thing, voice system sends " bearing circle of holding with a firm grip, step on brake ", increase braking force, guide chaufeur proper operation.In addition, micro controller system sends signal of tyre burst by d port to Central Processing Unit (CPU), after Central Processing Unit (CPU) obtains signal, send three road signals simultaneously, first via signal gives control unit of engine, cuts off fuel injector coil power supply, engine stop fuel feeding by control unit of engine, cut off engine power source (prove through test, the bearing circle now after oil-break still can freely rotate), second road signal delivers to control unit for automatic shift, control the power-transfer clutch of automatic transmission with hydraulic torque converter inside, single clutch and drg etc., realize downshift process, as the speed of a motor vehicle >=60km/h, automatic transmission with hydraulic torque converter is forced to drop to 3 grades by control unit, as the 60km/h > speed of a motor vehicle >=40km/h, automatic transmission with hydraulic torque converter is forced to drop to 2 grades by control unit, as speed of a motor vehicle < 40km/h, automatic transmission with hydraulic torque converter is forced to drop to 1 grade by control unit, until stop, by above downshift process, realize Jake brake, reduce the rotating speed of axle drive shaft, quick and stable for the speed of a motor vehicle is lowered, 3rd road signal delivers to brake system control unit, modern automobile ABS is standard configuration, partial automobile has been upgraded to ESP (electronics lateral stabilization system), so wheel speed sensors installed by each wheel, brake wheel cylinder oil-feed electromagnetic valve and go out solenoid, after brake system control unit receives signal of tyre burst, by the brake cylinder oil-feed closed electromagnetic valve of blowing out, go out solenoid to open, this tire is allowed to lose braking force, simultaneously by the oil-feed electromagnetic valve of another tire coaxial of blowing out with go out solenoid and periodically open and close, braking force is implemented to this tire, rate of braking maintains the yaw velocity before blowing out, if the vehicle in front of blowing out is straight-line travelling, then yaw velocity is zero, if vehicle is in turning when blowing out, then rate of braking maintains vehicle on this yaw velocity, two remaining wheels are not braked, yaw-rate sensor is connected to micro controller system and Central Processing Unit (CPU) simultaneously, yaw velocity at that time is directly read by Central Processing Unit (CPU).As speed of a motor vehicle < 60km/h, or the time in of being less than safety distance with preceding vehicle and obstacle, braking is also implemented to two remaining wheels, the mode of braking is carried out according to the ABS mode of vehicle own, also namely by oil-feed electromagnetic valve with go out solenoid and periodically open and close, implement braking, the slip-based controller of braking is between 15% ~ 25%.
Fig. 2 is the downshift control system in safety arrestment.When Central Processing Unit (CPU) receives signal of tyre burst, according to the signal that car speed sensor provides, implement downshift to automatic transmission with hydraulic torque converter to control, as the speed of a motor vehicle >=60km/h, control unit controls the single clutch of automatic transmission with hydraulic torque converter inside, power-transfer clutch and drg, gear is dropped to 3 grades, when the speed of a motor vehicle drops to 60km/h ~ 40km/h, automatic transmission with hydraulic torque converter is forced to drop to 2 grades, as speed of a motor vehicle < 40km/h by control unit, automatic transmission with hydraulic torque converter is forced to drop to 1 grade by control unit, until stop.
Fig. 3 is the wheel braking Force control system in safety arrestment, when control unit receives certain tire burst concrete, such as left front tire is blown out, then brake system control unit loses braking force by left front tire, implement braking to right front fire, the result of braking maintains the motoring condition before vehicle.Straight-line travelling during vehicle in front if blown out, then the result of braking ensures that the rolling distance of left front tire and right front fire is substantially suitable, keeps vehicle stabilization; If blown out, vehicle in front is in turning, then the rate of braking of right front fire maintains the yaw velocity before vehicle.(yaw velocity is obtained by yaw-rate sensor, yaw velocity represents the deflection of automobile around vertical axis, the size of this deflection represents the degree of stability of automobile, if yaw rate reaches a threshold value, illustrate that automobile is by dangerous working conditions such as generation sideslip or whippings) when being less than safety value (this safety value can be converted into braking distance according to the speed of a motor vehicle) with front truck or front obstacle distance, or when the speed of a motor vehicle is less than 60km/h, braking is also implemented to left rear tire and right rear fire (two remaining tires), the intensity of braking is carried out according to the control intensity of ABS, slip-based controller is between 15% ~ 25%.When occurring in if blown out on right front fire, left rear tire or right rear fire, mode is the same.
In sum, the utility model device, when high-speed tire explosion occurs, realizes following functions: can carry out proper operation by voice reminder chaufeur; Brake lamp flicker, the work of two twinkle SM signal lamp, warning front vehicle; Control automatic transmission with hydraulic torque converter to rob " low grade ", drop to 3 grades, 2 grades, 1 grade from top grade, utilize Jake brake; Simultaneously according to the distance size of the speed of a motor vehicle and vehicle front obstacle, braking is implemented respectively to the tire not having to blow out, with the tire rate of braking of blowing out coaxial be maintain vehicle operating stablize, if two other tire needs braking, then rate of braking carries out according to ABS control intensity, and the wheel of blowing out does not have braking force all the time.By controlling above to arrange, the high-speed tire explosion realized based on safety arrestment controls, thus reaches: even if the chaufeur of driving experience deficiency, also can realize stability contorting when blowing out, and harm of blowing out drops to minimum level.
In addition, for manual automobile run at high speed blow out time, can design with reference to automatic gear car mode, control if remove downshift, then the high-speed tire explosion mode of automatic gear car can be applied directly in the control of manual automobile high-speed tire explosion.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (4)
1. the automatic gear car based on safety arrestment is blown out control system, comprise Central Processing Unit (CPU), control unit of engine, control unit for automatic shift and brake system control unit, control command is sent to control unit of engine by Central Processing Unit (CPU) respectively, control unit for automatic shift and brake system control unit, it is characterized in that: control system also comprises device for monitoring tyre pressure, yaw-rate sensor and micro controller system, the tire pressure of each wheel monitored and automobile yaw velocity are sent to micro controller system by device for monitoring tyre pressure and yaw-rate sensor respectively, micro controller system is analyzed tire condition and is uploaded to Central Processing Unit (CPU).
2. the automatic gear car based on safety arrestment according to claim 1 is blown out control system, it is characterized in that: described control system also comprises speech prompting system, and speech prompting system is connected to micro controller system.
3. the automatic gear car based on safety arrestment according to claim 1 is blown out control system, it is characterized in that: described control system also comprises two twinkle SM signal lamp, and two twinkle SM signal lamp is connected to micro controller system.
4. the automatic gear car based on safety arrestment according to claim 1 is blown out control system, it is characterized in that: described control system also comprises brake lamp, and brake lamp is connected to micro controller system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201717.2U CN204548096U (en) | 2015-04-03 | 2015-04-03 | Automatic gear car based on safety arrestment is blown out control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520201717.2U CN204548096U (en) | 2015-04-03 | 2015-04-03 | Automatic gear car based on safety arrestment is blown out control system |
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| CN204548096U true CN204548096U (en) | 2015-08-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773168A (en) * | 2015-04-03 | 2015-07-15 | 安徽机电职业技术学院 | Automatic transmission automobile tire burst control system and method based on safety braking |
| WO2017202135A1 (en) * | 2016-05-25 | 2017-11-30 | 比亚迪股份有限公司 | Control method for when vehicle has flat tire, vehicle control system and vehicle |
| CN107539310A (en) * | 2016-06-23 | 2018-01-05 | 比亚迪股份有限公司 | Stable control method of blowing out, system and the vehicle of vehicle |
| CN108216194A (en) * | 2016-12-14 | 2018-06-29 | 福特全球技术公司 | Tyre break controls |
| CN108357500A (en) * | 2018-02-23 | 2018-08-03 | 长沙智能驾驶研究院有限公司 | Intelligent vehicle, the tyre-bursting security control method of intelligent vehicle and system |
| CN108928329A (en) * | 2018-08-20 | 2018-12-04 | 钱星旭 | A kind of automobile point brake system |
-
2015
- 2015-04-03 CN CN201520201717.2U patent/CN204548096U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773168A (en) * | 2015-04-03 | 2015-07-15 | 安徽机电职业技术学院 | Automatic transmission automobile tire burst control system and method based on safety braking |
| CN104773168B (en) * | 2015-04-03 | 2018-01-16 | 安徽机电职业技术学院 | Automatic catch automobile based on safety arrestment is blown out control system and method |
| WO2017202135A1 (en) * | 2016-05-25 | 2017-11-30 | 比亚迪股份有限公司 | Control method for when vehicle has flat tire, vehicle control system and vehicle |
| US10953868B2 (en) | 2016-05-25 | 2021-03-23 | Byd Company Limited | Control method when vehicle tire bursts, vehicle control system and vehicle |
| CN107539310A (en) * | 2016-06-23 | 2018-01-05 | 比亚迪股份有限公司 | Stable control method of blowing out, system and the vehicle of vehicle |
| CN108216194A (en) * | 2016-12-14 | 2018-06-29 | 福特全球技术公司 | Tyre break controls |
| GB2559652A (en) * | 2016-12-14 | 2018-08-15 | Ford Global Tech Llc | Tire blowout control |
| CN108357500A (en) * | 2018-02-23 | 2018-08-03 | 长沙智能驾驶研究院有限公司 | Intelligent vehicle, the tyre-bursting security control method of intelligent vehicle and system |
| CN108928329A (en) * | 2018-08-20 | 2018-12-04 | 钱星旭 | A kind of automobile point brake system |
| CN108928329B (en) * | 2018-08-20 | 2020-06-02 | 钱星旭 | Automobile snub system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150812 Termination date: 20160403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |