CN203920441U - A kind of automobile accelerator mistake-stepping prevention device - Google Patents
A kind of automobile accelerator mistake-stepping prevention device Download PDFInfo
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- CN203920441U CN203920441U CN201420294957.7U CN201420294957U CN203920441U CN 203920441 U CN203920441 U CN 203920441U CN 201420294957 U CN201420294957 U CN 201420294957U CN 203920441 U CN203920441 U CN 203920441U
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- throttle gate
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Abstract
The utility model discloses a kind of automobile accelerator mistake-stepping prevention device.This device drives brake pedal by servomotor when emergency braking, thereby can accurately control speed and the angle that pulls brake pedal, the braking procedure of Accurate Control of Automotive; Make reliability and the speed of response of whole system higher; Simple in structure, fast response time, not only cuts off oil circuit and makes automobile stop accelerating, and the while is emergency braking also, reaches the object of accelerator anti-false step.
Description
Technical field
The utility model relates to automobile safety protective field, is specifically related to a kind of automobile accelerator mistake-stepping prevention device.
Background technology
At present, along with people's living standard improves constantly, car owning amount rapid growth, increasing people selects the trip of driving, and corresponding, traffic accident also increases thereupon.According to statistics, 70%～90% traffic accident all causes due to chaufeur maloperation, wherein because chaufeur throttle is stepped on the accident causing and accounted for again 12.6% of total accident ratio by mistake.According to NISSAN company, in Japan, approximately having every year 7000 accidents is due to Das Gaspedal is stepped on and being caused as brake pedal by mistake.Because automatic catch automobile does not have pedal of clutch, cannot as manual-gear vehicle, utilize power-transfer clutch to cut off power, throttle and brake pedal are all controlled with right crus of diaphragm, therefore chaufeur is trampled throttle with right crus of diaphragm in motion, when brake, need to lift right crus of diaphragm, shift to brake push down on the pedal automobile brake is slowed down.But in case of emergency, as having suddenly obstacle, the place ahead occurs, now because chaufeur is in high-pressure state, especially the first person of driving, be easy to, in flurried, throttle is treated as to brake, firmly step on the throttle, not only cause vehicle can not stop, rapidly speed-raising on the contrary, thus quite serious accident caused.
Summary of the invention
The purpose of this utility model is to provide a kind of automobile accelerator mistake-stepping prevention device, and cost of manufacture is low, simple in structure and be easy to realize, and system response time is fast, and accuracy and reliability are high; If mis-accelerator pressing, vehicle stop fuel feeding emergency braking, can reach the object that prevents driver fault misstepping on accelerator.
The utility model is by the following technical solutions: a kind of automobile accelerator mistake-stepping prevention device, include accelerator pedal mechanism, acceleration pick-up, radar sensor, tachogenerator, vehicle microcomputer controller, throttle gate and throttle gate circuit, DSP2812 controller, servomotor, brake treadle mechanism, control cock, vacuum booster, master brake cylinder, front wheels and rear wheels, described acceleration pick-up is arranged on accelerator pedal mechanism and with accelerator pedal mechanism and is fixedly connected with, and acceleration pick-up is collected the acceleration signal that pedal rotates; Radar sensor is installed in body structure, for collecting the distance of the place ahead obstacle and this car; Tachogenerator is for the speed of a motor vehicle of measured automobiles; Tachogenerator, acceleration pick-up, radar sensor are connected with DSP2812 controller signals, and signal acceleration/accel a, distance L that acceleration pick-up, radar sensor are collected are sent in DSP2812 controller by A/D port and RS232 port respectively; Vehicle microcomputer controller is connected with throttle gate circuit, and throttle gate circuit is for controlling the switching of throttle gate; Servomotor be connected with DSP2812 controller signals and with brake treadle mechanism interlock, brake treadle mechanism is connected with control cock, control cock by vacuum booster be connected with master brake cylinder, master brake cylinder acts on front wheels and rear wheels.
As a kind of improvement, described throttle gate circuit comprises CAN transceiver PCA82C250, the TXD of CAN transceiver PCA82C250 is connected with CANRXA pin with the CANTXA of DSP2812 controller respectively with RXD pin, the CANH of CAN transceiver PCA82C250 is connected with the vehicle microcomputer controller of automobile by CAN bus with CANL pin, and described radar sensor is connected with the XD0-XD8 pin of DSP2812 controller by RS232 bus; Described acceleration pick-up is connected with the ADCL0 pin of DSP2812 controller by its output pin.
Compared with prior art, the utility model drives brake pedal by servomotor when emergency braking, thereby can accurately control speed and the angle that pulls brake pedal, the braking procedure of Accurate Control of Automotive; Make reliability and the speed of response of whole system higher; Simple in structure, fast response time, not only cuts off oil circuit and makes automobile stop accelerating, and the while is emergency braking also, reaches the object of accelerator anti-false step.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model automobile accelerator mistake-stepping prevention device.
Fig. 2 is the schematic circuit diagram of the utility model automobile accelerator mistake-stepping prevention device.
Fig. 3 is the schematic diagram of the utility model parts driven by servomotor circuit.
Fig. 4 is the schematic diagram of the utility model parts acceleration detection circuit.
Fig. 5 is the schematic diagram of the utility model parts throttle control circuit.
The specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
A kind of specific embodiment of automobile accelerator mistake-stepping prevention device, as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, include accelerator pedal mechanism 1, acceleration pick-up 2, radar sensor 3, tachogenerator 14, vehicle microcomputer controller 4, throttle gate 5 and throttle gate circuit, DSP2812 controller 6, servomotor 7, brake treadle mechanism 8, control cock 9, vacuum booster 10, master brake cylinder 11, front wheels 12 and rear wheels 13, described acceleration pick-up 2 is arranged on accelerator pedal mechanism 1 and with accelerator pedal mechanism 1 and is fixedly connected with, acceleration pick-up 2 is collected the acceleration signal that pedal rotates, radar sensor 3 is installed in body structure, for collecting the distance of the place ahead obstacle and this car, tachogenerator 14 is for the speed of a motor vehicle of measured automobiles, tachogenerator 14, acceleration pick-up 2, radar sensor 3 are connected with DSP2812 controller 6 signals, and signal acceleration/accel a, distance L that acceleration pick-up 2, radar sensor 3 are collected are sent in DSP2812 controller 6 by A/D port and RS232 port respectively, vehicle microcomputer controller 4 is connected with throttle gate circuit, and throttle gate circuit is for controlling the switching of throttle gate, servomotor 7 is connected with DSP2812 controller 6 signals and links with brake treadle mechanism 8, brake treadle mechanism 8 is connected with control cock 9, control cock 9 by vacuum booster 10 be connected with master brake cylinder 11, master brake cylinder 11 acts on the rear wheels 13 of front wheels 12.System architecture is simple, and fast response time not only cuts off oil circuit and makes automobile stop accelerating, and the while is emergency braking also, reaches the object of accelerator anti-false step.
As a kind of improved specific embodiment, as shown in Figure 5, described throttle gate circuit comprises CAN transceiver PCA82C250, the TXD of CAN transceiver PCA82C250 is connected with CANRXA pin with the CANTXA of DSP2812 controller 6 respectively with RXD pin, the CANH of CAN transceiver PCA82C250 is connected with the vehicle microcomputer controller 4 of automobile by CAN bus with CANL pin, and described radar sensor 3 is connected with the XD0-XD8 pin of DSP2812 controller 6 by RS232 bus; Described acceleration pick-up 2 is connected with the ADCL0 pin of DSP2812 controller 6 controllers by its output pin.Compare with micro controller system, the integrated level of DSP is higher, has more module and CPU faster, thus the speed of response of native system and reliability also higher.And DSP2812 has CAN module, CAN is as the serial communication protocol of international standarkdization, and has High Performance and high reliability, in automobile industry, is widely used.
Claims (2)
1. an automobile accelerator mistake-stepping prevention device, include accelerator pedal mechanism (1), acceleration pick-up (2), radar sensor (3), tachogenerator (14), vehicle microcomputer controller (4), throttle gate (5) and throttle gate circuit, DSP2812 controller (6), servomotor (7), brake treadle mechanism (8), control cock (9), vacuum booster (10), master brake cylinder (11), front wheels (12) and rear wheels (13), described acceleration pick-up (2) is arranged on accelerator pedal mechanism (1) above and is fixedly connected with accelerator pedal mechanism (1), acceleration pick-up 2 is collected the acceleration signal that pedal rotates, radar sensor (3) is installed in body structure, for collecting the distance of the place ahead obstacle and this car, tachogenerator (14) is for the speed of a motor vehicle of measured automobiles, tachogenerator (14), acceleration pick-up (2), radar sensor (3) are connected with DSP2812 controller (6) signal, and the signal acceleration/accel a that acceleration pick-up (2), radar sensor (3) are collected, distance L are sent in DSP2812 controller (6) by A/D port and RS232 port respectively, vehicle microcomputer controller (4) is connected with throttle gate circuit, and throttle gate circuit is for controlling the switching of throttle gate, servomotor (7) is connected with DSP2812 controller (6) signal and links with brake treadle mechanism (8), brake treadle mechanism (8) is connected with control cock (9), control cock (9) is connected with master brake cylinder (11) by vacuum booster (10), and master brake cylinder (11) acts on front wheels (12) and rear wheels (13).
2. a kind of automobile accelerator mistake-stepping prevention device according to claim 1, it is characterized in that described throttle gate circuit comprises CAN transceiver PCA82C250, the TXD of CAN transceiver PCA82C250 is connected with CANRXA pin with the CANTXA of DSP2812 controller (6) respectively with RXD pin, the CANH of CAN transceiver PCA82C250 is connected with the vehicle microcomputer controller (4) of automobile by CAN bus with CANL pin, and described radar sensor (3) is connected with the XD0-XD8 pin of DSP2812 controller (6) by RS232 bus; Described acceleration pick-up (2) is connected with the ADCL0 pin of DSP2812 controller (6) by its output pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294957.7U CN203920441U (en) | 2014-06-04 | 2014-06-04 | A kind of automobile accelerator mistake-stepping prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294957.7U CN203920441U (en) | 2014-06-04 | 2014-06-04 | A kind of automobile accelerator mistake-stepping prevention device |
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| Publication Number | Publication Date |
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| CN203920441U true CN203920441U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420294957.7U Expired - Fee Related CN203920441U (en) | 2014-06-04 | 2014-06-04 | A kind of automobile accelerator mistake-stepping prevention device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816633A (en) * | 2015-05-13 | 2015-08-05 | 段家忠 | Automobile error operation recognition emergency stop device |
| CN104842979A (en) * | 2015-04-29 | 2015-08-19 | 南宁燎旺车灯有限责任公司 | Automotive emergency braking system |
| CN105196992A (en) * | 2015-10-15 | 2015-12-30 | 安庆师范学院 | Automobile accelerator mistaken stepping emergency braking device and braking method thereof |
| CN105522925A (en) * | 2016-02-29 | 2016-04-27 | 湖州职业技术学院 | Emergency brake mistaken-accelerator-stepping safety system |
| CN105799683A (en) * | 2016-02-28 | 2016-07-27 | 商洛学院 | Mechano-electronic hydraulic braking system for vehicle |
| CN106004437A (en) * | 2016-07-01 | 2016-10-12 | 北京汽车研究总院有限公司 | Mistaken stepping preventing control system and mistaken stepping preventing control method for accelerator pedal of vehicle and vehicle |
| CN106394523A (en) * | 2016-10-17 | 2017-02-15 | 广州铁路职业技术学院 | Intelligent braking system preventing driver from stepping on accelerator mistakenly during emergency braking of vehicle |
-
2014
- 2014-06-04 CN CN201420294957.7U patent/CN203920441U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842979A (en) * | 2015-04-29 | 2015-08-19 | 南宁燎旺车灯有限责任公司 | Automotive emergency braking system |
| CN104816633A (en) * | 2015-05-13 | 2015-08-05 | 段家忠 | Automobile error operation recognition emergency stop device |
| CN105196992A (en) * | 2015-10-15 | 2015-12-30 | 安庆师范学院 | Automobile accelerator mistaken stepping emergency braking device and braking method thereof |
| CN105799683A (en) * | 2016-02-28 | 2016-07-27 | 商洛学院 | Mechano-electronic hydraulic braking system for vehicle |
| CN105799683B (en) * | 2016-02-28 | 2018-05-04 | 商洛学院 | A kind of mechano-electronic brake fluid system for vehicle |
| CN105522925A (en) * | 2016-02-29 | 2016-04-27 | 湖州职业技术学院 | Emergency brake mistaken-accelerator-stepping safety system |
| CN106004437A (en) * | 2016-07-01 | 2016-10-12 | 北京汽车研究总院有限公司 | Mistaken stepping preventing control system and mistaken stepping preventing control method for accelerator pedal of vehicle and vehicle |
| CN106394523A (en) * | 2016-10-17 | 2017-02-15 | 广州铁路职业技术学院 | Intelligent braking system preventing driver from stepping on accelerator mistakenly during emergency braking of vehicle |
| CN106394523B (en) * | 2016-10-17 | 2019-02-15 | 广州铁路职业技术学院 | Emergency brake of vehicle accelerator stepping misoperation preventing Intelligent brake system |
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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: 20141105 Termination date: 20160604 |
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| CF01 | Termination of patent right due to non-payment of annual fee |