CN202147651U - Protective device for preventing tire burst and overturning of motor vehicle - Google Patents
Protective device for preventing tire burst and overturning of motor vehicle Download PDFInfo
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- CN202147651U CN202147651U CN201120287605U CN201120287605U CN202147651U CN 202147651 U CN202147651 U CN 202147651U CN 201120287605 U CN201120287605 U CN 201120287605U CN 201120287605 U CN201120287605 U CN 201120287605U CN 202147651 U CN202147651 U CN 202147651U
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Abstract
The utility model discloses a protective device for preventing tire burst and overturning of the motor vehicle. An I/O port of a single chip microcomputer is connected with a comparator and four angle sensors. Simultaneously, through connection between a T0 port and a speed sensor of an automobile, reading for driving speed information of the automobile is realized. Data analysis processing is performed through software for determining the state of the vehicle. Real-time and quick processing is performed. When generation of tire burst is determined, a single-chip microcomputer (MCU) transmits a control signal and operates an ABS antilock brake system for performing deceleration brake. A PWM speed adjusting signal is generated for controlling the speed of a steering wheel auxiliary motor. Furthermore a leftward turning signal or a rightward turning signal is generated for adjusting the steering wheel in time, thereby controlling the direction of the vehicle and preventing side turning-over. Real-time collection and acquisition for speed and inclination angle of the vehicle are realized. While whether side turning-over risk of the vehicle exists is quickly determined, an automatic control method which can not be finished by a driver in tire burst for controlling the steering of the vehicle is adopted. Furthermore an ABS brake measure is started for ensuring safety of the vehicle and the personnel.
Description
Technical field
The utility model discloses a kind of fender guard that prevents self-propelled vehicle to blow out and overturn; Being used for automobile is running at high speed; The tire anti-rollover fender guard of blowing out unexpectedly; Be the passive protection that adopts when utilizing the measurement of dip angle technology that driving vehicle is blown out, belong to intelligent vehicle safety driver assistance technical field.
Background technology
The increase of automobile has solved a lot of traffic problems, but has also brought a lot of worries, frequent day by day traffic accident to let the people feel with one's hair standing on end deeply simultaneously, and automotive safety becomes the topic that people pay special attention to.When particularly automobile went on the expressway, the accident of motor tire global automobile " public hazards " problem that takes place of blowing out also became increasingly conspicuous.Reduce the incidence of motor traffic accidents, the personal casualty that especially cuts down traffic accidents becomes the industrial important topic of world car.This requires automobile vendor and components supplying merchant to continually develop out pioneering technology; Create and develop some intelligent vehicle safety systems; As catch the information and the situation that possibly cause danger before the automobile flat tire, and let automobile be out of danger, reach the purpose of passive security protection.
Summary of the invention
The utility model provides a kind of fender guard that prevents self-propelled vehicle to blow out to overturn, and is used for carrying out automobile protection through automatic control mode under the situation that vehicle blows out suddenly under steam.
The utility model discloses a kind of fender guard that prevents self-propelled vehicle to blow out and overturn, and adopts following technical solution:
Mainly contain micro controller system (MCU), angular transducer, comparator, data memory, voice module, bearing circle helper motor control and driving module, automotive speed sensor, driving isolation, ABS anti-skid brake system formation; Wherein, The I/O mouth of micro controller system (MCU) is connected with four angular transducers with comparator, realizes the real-time collection of body inclination angle information; Be connected with the speed sensor of automobile through the T0 mouth, realize reading of automobile driving speed information; Common storage is carried out data analysis through software and is handled in data memory, judges vehicle-state, carries out processing real-time.When judgement was blown out, micro controller system (MCU) sent control signal, isolated through driving, and operation A BS anti-skid brake system carries out brake snub; Micro controller system (MCU) produces the speed that PWM (pulse duration modulation) speed-regulating signal is used to control the bearing circle helper motor by on-chip timer; And produce the left-hand rotation right turn signal and give bearing circle helper motor control and driving module together through the I/O mouth, in time adjust bearing circle control vehicle direction and avoid vehicle rollover; Sending prompting through voice module simultaneously reports to the police.
The car for guarding against side turned over protection control setup of the utility model, concrete structure is following:
Four angular transducers are connected with the P1.4-P1.7 of micro controller system through comparator, are connected on the external interrupt mouth INT1 of micro controller system through NAND gate simultaneously, realize relatively judging in real time four tire angles;
Automotive speed sensor is an automobile self speed sensor circuit interface, and its speed in frequency signal pins is connected with the timer T0 pin of micro controller system, realizes the real-time collection of automobile driving speed;
Simulation with I is adopted in the control of data memory
2The mode of C bus, it is connected with pin P3.6, the P3.7 of micro controller system respectively through two signal wire (SW) serial data lines and serial time clock line, realizes the data storage operations of data memory;
Simulation SPI signalling methods is adopted in voice module control, and wherein the P1.0--P1.3 of micro controller system selects CS, mainly goes out from going into MOSI, serial clock SCK, mainly going into to be connected from going out the MISO pin realization voice prompt alarm function with the principal and subordinate of speech chip respectively;
Bearing circle helper motor control and driving module is made up of the motor special driving chip; P0.5, P0.7 left-hand rotation right turn signal pin through NAND gate and micro controller system are connected; Realize changeing about the bearing circle motor control; Be connected with P0.6 PWM speed-regulating signal pin simultaneously, realize the control of bearing circle motor speed, thereby realize the oppositely directed purpose of control bearing circle adjustment vehicle;
The ABS anti-skid brake system is the emergency braking control mechanism circuit interface of automobile self, and micro controller system is connected with ABS anti-skid brake system interface control line respectively through driving buffer circuit through P2.6, P2.7, the brake snub control when realizing blowing out.
Drive buffer circuit and realize driving amplification and the electrical isolation of micro controller system (MCU) control signal P2.6, P2.7, avoid the impact of interference of automobile circuit this device.
Device is connected with the relevant interface of automobile, working power is provided by automobile storage battery.Install real-time collection vehicle angle and velocity information, and store in the data memory, software carries out the real time data analyzing and processing; Judge vehicle-state; And carry out judgment processing real-time: if vehicle is in the cruising state, the data that angular transducer is gathered are normal, do not blow out; It is dangerous not have rollover, does not produce any operation; If angular transducer has at least one to interrupt reporting to the police, vehicle has certain speed simultaneously, the danger of the overturning of having blown out this moment, and micro controller system (MCU) sends control signal, isolates through driving, and operation A BS anti-skid brake system carries out brake snub; Micro controller system (MCU) produces the speed that PWM (pulse duration modulation) speed-regulating signal is used to control the bearing circle helper motor by on-chip timer; And produce the left-hand rotation right turn signal and give bearing circle helper motor control and driving module through the I/O mouth together through NAND gate, in time adjust bearing circle control vehicle direction and avoid vehicle rollover; Sending prompting through voice module simultaneously reports to the police.
The good effect of the utility model is:The real-time collection and the storage at car speed and inclination angle have been realized; And judge fast whether vehicle has rollover simultaneously dangerous; And the control vehicle that chaufeur can't be accomplished when blowing out turn to the autocontrol method of being taked, and start the abs braking measure, guarantee vehicle and personnel's safety.Remind chaufeur in time to go and find out what's going on through audio alert.Through the utility model, can reduce the generation of the rollover accident that automobile causes owing to reason such as blow out.Increase substantially traffic safety, guaranteed the people's the life and the safety of property.
Description of drawings
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model schematic circuit diagram.
The specific embodiment
Embodiment 1
According to shown in Figure 1; The utility model device is made up of micro controller system (MCU), angular transducer, comparator, data memory, voice module, bearing circle helper motor control and driving module, automotive speed sensor, driving isolation, ABS anti-skid brake system; Wherein
The I/O mouth of micro controller system (MCU) is connected with four angular transducers with comparator, realizes the real-time collection of body inclination angle information; Be connected with the speed sensor of automobile through the T0 mouth, realize reading of automobile driving speed information; Common storage supplies software to carry out data analysis and handles in data memory, judges vehicle-state, carries out processing real-time.When judgement was blown out, micro controller system (MCU) sent control signal, isolated through driving, and operation A BS anti-skid brake system carries out brake snub; Micro controller system (MCU) produces the speed that PWM (pulse duration modulation) speed-regulating signal is used to control the bearing circle helper motor by on-chip timer; And produce the left-hand rotation right turn signal and give bearing circle helper motor control and driving module together through the I/O mouth, in time adjust bearing circle control vehicle direction and avoid vehicle rollover; Sending prompting through voice module simultaneously reports to the police.
Embodiment 2
According to shown in Figure 2; Four angular transducers (present embodiment adopts the ORS-CLM type) are connected through the P1.4-P1.7 of comparator (present embodiment adopts LM339) with micro controller system (present embodiment adopts AT89S52); Be connected on the INT1 of micro controller system through four input nand gates (present embodiment adopts 74LS22) simultaneously, realize relatively judging in real time four tire angles.
Automotive speed sensor is an automobile self speed sensor circuit interface, and its speed in frequency signal pins is connected with the counting machine T0 pin of micro controller system (MCU), realizes the real-time collection of automobile driving speed.
Data memory (present embodiment adopts 24c256) adopts I
2The mode of C bus is connected with pin P3.0, the P3.1 of micro controller system through two signal wire (SW) SDA (serial data line) SCL (serial time clock line), realizes E
2PROM reads and write operation, accomplishes the storage of angle and velocity information.
Come analyzing and processing through software; When judging when blowing out danger, produces two switching value control signals through driving buffer circuit (present embodiment employing SSR solid-state relay CN024D05) thus issue the ABS anti-skid brake system interface circuit completion car retardation control of braking of automobile self.
Simultaneously the P0.6 of micro controller system (MCU) produces PWM (pulse duration modulation) speed-regulating signal, and P0.5, P0.7 send left and right sides rotaring signal and control bearing circle helper motor adjustment direction of traffic for bearing circle helper motor control and driving module (present embodiment adopts L298N) to avoid vehicle rollover.
And real-time startup voice module (present embodiment adopts speech chip ISD1700) is reported to the police; The P1.0--P1.3 simulation SPI signalling methods of micro controller system (MCU) is selected CS with the principal and subordinate of speech chip respectively, is led from going into MOSI, serial clock SCK, leading to go into to be connected from going out the MISO pin.Realize voice prompt alarm, remind chaufeur in time to go and find out what's going on.
Claims (2)
1. fender guard that prevents self-propelled vehicle to blow out to overturn is characterized in that:
Mainly contain micro controller system, angular transducer, comparator, data memory, voice module, bearing circle helper motor control and driving module, automotive speed sensor, driving isolation, ABS anti-skid brake system formation; Wherein, The I/O mouth of micro controller system is connected with four angular transducers with comparator, realizes the real-time collection of body inclination angle information; Be connected with the speed sensor of automobile through the T0 mouth, realize reading of automobile driving speed information; Common storage supplies software to carry out data analysis and handles in data memory, judges vehicle-state, carries out processing real-time; When judgement was blown out, micro controller system sent control signal, isolated through driving, and operation A BS anti-skid brake system carries out brake snub; Micro controller system produces the speed that the PWM speed-regulating signal is used to control the bearing circle helper motor by on-chip timer; And produce the left-hand rotation right turn signal and give bearing circle helper motor control and driving module together through the I/O mouth, in time adjust bearing circle control vehicle direction and avoid vehicle rollover; Sending prompting through voice module simultaneously reports to the police.
2. the fender guard of blowing out and overturning according to the said prevention self-propelled vehicle of claim 1 is characterized in that:
Four angular transducers are connected with the P1.4-P1.7 of micro controller system through comparator, are connected on the external interrupt mouth INT1 of micro controller system through NAND gate simultaneously, realize relatively judging in real time four tire angles;
Automotive speed sensor is an automobile self speed sensor circuit interface, and its speed in frequency signal pins is connected with the timer T0 pin of micro controller system, realizes the real-time collection of automobile driving speed;
Simulation with I is adopted in the control of data memory
2The mode of C bus, it is connected with pin P3.6, the P3.7 of micro controller system respectively through two signal wire (SW) serial data lines and serial time clock line, realizes the data storage operations of data memory;
Simulation SPI signalling methods is adopted in voice module control, and wherein the P1.0--P1.3 of micro controller system selects CS, mainly goes out from going into MOSI, serial clock SCK, mainly going into to be connected from going out the MISO pin realization voice prompt alarm function with the principal and subordinate of speech chip respectively;
Bearing circle helper motor control and driving module is made up of the motor special driving chip; P0.5, P0.7 left-hand rotation right turn signal pin through NAND gate and micro controller system are connected; Realize changeing about the bearing circle motor control; Be connected with P0.6 PWM speed-regulating signal pin simultaneously, realize the control of bearing circle motor speed, thereby realize the oppositely directed purpose of control bearing circle adjustment vehicle;
The ABS anti-skid brake system is the emergency braking control mechanism circuit interface of automobile self, and micro controller system is connected with ABS anti-skid brake system interface control line respectively through driving buffer circuit through P2.6, P2.7, the brake snub control when realizing blowing out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120287605U CN202147651U (en) | 2011-08-09 | 2011-08-09 | Protective device for preventing tire burst and overturning of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120287605U CN202147651U (en) | 2011-08-09 | 2011-08-09 | Protective device for preventing tire burst and overturning of motor vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN202147651U true CN202147651U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120287605U Expired - Fee Related CN202147651U (en) | 2011-08-09 | 2011-08-09 | Protective device for preventing tire burst and overturning of motor vehicle |
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| CN (1) | CN202147651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336190A (en) * | 2011-08-09 | 2012-02-01 | 长春工业大学 | Anti-side turning protection control method and device for automobile |
| CN106926842A (en) * | 2015-12-31 | 2017-07-07 | 罗伯特·博世有限公司 | Vehicle assistant drive method and vehicle DAS (Driver Assistant System) |
-
2011
- 2011-08-09 CN CN201120287605U patent/CN202147651U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336190A (en) * | 2011-08-09 | 2012-02-01 | 长春工业大学 | Anti-side turning protection control method and device for automobile |
| CN102336190B (en) * | 2011-08-09 | 2013-07-24 | 长春工业大学 | Anti-side turning protection control method and device for automobile |
| CN106926842A (en) * | 2015-12-31 | 2017-07-07 | 罗伯特·博世有限公司 | Vehicle assistant drive method and vehicle DAS (Driver Assistant System) |
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| 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: 20120222 Termination date: 20120809 |