CN104960511A - Method for preventing mistaking accelerator pedal for brake pedal - Google Patents
Method for preventing mistaking accelerator pedal for brake pedal Download PDFInfo
- Publication number
- CN104960511A CN104960511A CN201510470391.8A CN201510470391A CN104960511A CN 104960511 A CN104960511 A CN 104960511A CN 201510470391 A CN201510470391 A CN 201510470391A CN 104960511 A CN104960511 A CN 104960511A
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- Prior art keywords
- accelerator pedal
- ecu
- position sensor
- pedal
- relay
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention relates to a method for preventing mistaking an accelerator pedal for a brake pedal. The method comprises the following steps of connecting a DSP with an accelerator pedal position sensor of an automobile, connecting the DSP with an optical coupler, connecting the optical coupler with a relay through a relay driving circuit, connecting the relay with an ECU data bus of the automobile and conducting analytical processing on voltage data sent by the accelerator pedal position sensor through the DSP, wherein when the voltage change speed surpasses a preset danger value, the DSP controls the relay to disconnect the accelerator pedal position sensor from an ECU and sends a decelerating voltage signal and a brake pedal switch closing signal to the ECU simultaneously. According to the method for preventing mistaking the accelerator pedal for the brake pedal, the use method is simple, the cost is low, modification is convenient, a large amount of modification on a whole vehicle electronic control system of the automobile is not needed, the method can be used for all existing automobiles, and the method is specially suitable for existing automobiles without installing systems for preventing pedal misapplication.
Description
Technical field
The present invention relates to a kind of preventing and will speed up the method for pedal as brake pedal by mistake.
Background technology
At present, along with the improving constantly of living standard of people, the owning amount of automobile also increases fast, traffic accident simultaneously also increases thereupon, wherein some traffic accident causes due to chaufeur faulty operation, such as, once repeatedly occurred because chaufeur will speed up the great and especially big traffic accidents that pedal causes as brake pedal by mistake.
For avoiding the generation of such accident, comprise the various countries experts and scholars of automaker, devise the solution of various accelerator stepping misoperation preventing one after another, a kind of pre-anti-error pedal as existing in existing Nissan, Toyota Company is also proposed new type of safe system, all the possibilities in order to reduce the high-speed crash accident caused because of mis-accelerator pressing, and the domestic patent also about this aspect is open, as a kind of Anti-false stepping system for automobile throttle that publication number is CN203888636U, disclose a kind of Anti-false stepping system for automobile throttle, can the pre-accelerator stepping misoperation preventing of actv. accident occur.
But the deficiency that above-mentioned various scheme exists is: need to change in a large number car load electric-control system, or produce novel containing technique scheme automobile, and be difficult to adopt above-mentioned solution to be implemented to existing automobile.
Summary of the invention
The technical problem to be solved in the present invention is: for the deficiencies in the prior art, provides a kind of control method that the operation of acceleration rapidly can be become deceleration or brake operation, can have the function that can prevent driver fault misstepping on accelerator by the simple existing automobile that makes.
The technical scheme solved the problems of the technologies described above is: a kind of preventing will speed up the method for pedal as brake pedal by mistake, comprises the steps:
By DSP data processor controlled relay, whether accelerator pedal position sensor on automobile is connected with ECU data bus and controls, detailed process is, DSP data handler carries out analyzing and processing to the voltage data that accelerator pedal position sensor sends, when change of voltage speed exceedes default dangerous values, DSP data processor controlled relay disconnects the connection of accelerator pedal position sensor and ECU, and send decelerating voltage signal to ECU, make brake pedal switch be closure state by relay simultaneously, ECU processes the decelerating voltage signal obtained and brake pedal switch signal, control car deceleration and stop travelling.
Further technical scheme of the present invention is: comprise the steps:
A. first in dsp operation program, set dangerous values Da, then read the voltage data D of accelerator pedal position sensor by DSP data handler first time
1, after the 2ms of interval, read the voltage data D of accelerator pedal position sensor by DSP data handler second time
2;
B. DSP data handler is passed through to voltage data D
2, D
1carry out analyzing and processing, when the variable quantity of D2, D1 is for time negative, DSP data handler is left intact, when D2, D1 variable quantity for just and exceed preset dangerous values Da time, the adhesive of DSP data processor controlled relay, the connection that will speed up pedal displacement sensor and ECU data bus disconnects, simultaneously, send idling voltage signal to ECU data bus, ECU processes above-mentioned signal, controls car deceleration.
C., after the 1s of interval, DSP data handler reads the voltage data D of accelerator pedal position sensor again
3judge whether acceleration pedal gets back to idle position, if acceleration pedal does not also get back to idle position, then continue to send error stepping on accelerator pedal signal, if acceleration pedal gets back to idle position, then stop sending error stepping on accelerator pedal signal, control relay discharges, accelerator pedal position sensor is connected with ECU, and automobile recovers normal and travels.
Further technical scheme of the present invention is: comprise the steps:
By DSP data handler, the ECU data bus on automobile is connected with accelerator pedal position sensor, brake pedal respectively, with DSP data handler, analyzing and processing is carried out to the voltage data that accelerator pedal position sensor sends, when change of voltage speed exceedes default dangerous values, DSP data processor controlled relay disconnects the connection of accelerator pedal position sensor and ECU, sends decelerating voltage signal and brake pedal switch closure signal to ECU simultaneously.
Be connected with the accelerator pedal position sensor on automobile by DSP data handler, DSP data handler is connected with optic coupler, and optic coupler is connected with relay by relay drive circuit, and relay is connected with the ECU data bus on automobile.
DSP data handler, relay, optic coupler and relay drive circuit are all arranged in body skin, be provided with plug and socket outside body skin, described plug is used for being connected with accelerator pedal position sensor, and described socket is used for being connected with ECU data bus.
Owing to adopting technique scheme, a kind of the preventing of the present invention will speed up the method for pedal as brake pedal by mistake, has following beneficial effect:
1. the present invention DSP data handler carries out analyzing and processing to the voltage data that accelerator pedal position sensor sends, when change of voltage speed exceedes default dangerous values, DSP data processor controlled relay disconnects the connection of accelerator pedal position sensor and ECU, sends decelerating voltage signal and brake pedal switch closure signal to ECU simultaneously.By DSP data handler, original accelerator pedal position sensor and ECU data bus are coupled together, accelerator pedal position sensor outputting analog signal, reflect that the position of acceleration pedal (is low voltage during non-pedal with the height of voltage, be high potential when pedal is floored), DSP data handler receives the analog signal that accelerator pedal position sensor exports, and analyzing and processing is carried out to analog signal, judge whether that will speed up pedal carries out emergency brake operation as brake pedal by mistake, if, the Acceleration Signal rapidly that DSP data handler then will speed up pedal sensor output converts restriction signal to, and export speed-slackening signal, namely signal is sent to ECU(ECU (Electrical Control Unit) by the ECU data bus of former car by DSP data handler), by ECU, calculation process is carried out to this information, control car deceleration or parking, thus avoid the generation of the unexpected traffic accidents caused because of chaufeur faulty operation.
2. the present invention can establish a body skin, DSP data handler, relay, optic coupler and relay drive circuit are all arranged in body skin, and plug and socket is arranged at outside body skin.Only need accelerator pedal position sensor on former automobile to be connected with the socket of ECU data bus during use to disconnect, be then connected with accelerator pedal position sensor and ECU data bus respectively by plug and socket.Using method of the present invention is simple, cost is low, repacking is convenient, and without the need to changing in a large number the car load electric-control system of automobile, existing automobile all can use, and is specially adapted to the existing automobile not being provided with Anti-mis-stepping system.
, will speed up the method for pedal as brake pedal in conjunction with Figure of description and specific embodiment a kind of the preventing to the present invention below by mistake, technical characteristic be further described.
Accompanying drawing explanation
Fig. 1: in the present invention, a kind of preventing will speed up the diagram of circuit of pedal as the method for brake pedal by mistake.
Fig. 2: the concrete schematic diagram of accelerator pedal position sensor signal gathering unit in the present invention.
Fig. 3: in the present invention, a kind of preventing will speed up the structured flowchart of pedal as the controller of brake pedal by mistake.
In above-mentioned accompanying drawing, each label declaration is as follows:
1-controller input plug, 2-controller accessory power outlet, 3-accelerator pedal position sensor, 4-3.3V voltage stabilizer, 5-DSP data handler, 6-relay, 7-optic coupler, 8-auxiliary connection.
Detailed description of the invention
A kind of preventing will speed up the method for pedal as brake pedal by mistake, DSP data handler is comprised the steps: to be connected with the accelerator pedal position sensor on automobile, DSP data handler is connected with optic coupler, optic coupler is connected with relay by relay drive circuit, relay is connected with the ECU data bus on automobile, by DSP data processor controlled relay, whether accelerator pedal position sensor on automobile is connected with ECU data bus and controls, detailed process is, with DSP data handler, analyzing and processing is carried out to the voltage data that accelerator pedal position sensor sends, when change of voltage speed exceedes default dangerous values, DSP data processor controlled relay disconnects the connection of accelerator pedal position sensor and ECU, and send decelerating voltage signal and brake pedal switch closure signal to ECU.Make brake pedal switch be closure state by relay, ECU processes the decelerating voltage signal obtained and brake pedal switch signal simultaneously, controls car deceleration and stops travelling.Concrete steps are as follows:
A. first in dsp operation program, dangerous values Da(dangerous values Da is set relevant with vehicle, its Da value of different vehicles is different, to be determined by test by accel control designer and be solidificated in dsp operation program), the voltage data D of accelerator pedal position sensor is then read by DSP data handler first time
1, after the 2ms of interval, read the voltage data D of accelerator pedal position sensor by DSP data handler second time
2;
B. DSP data handler is passed through to voltage data D
2, D
1carry out analyzing and processing, work as D2, when the variable quantity of D1 is for negative (i.e. D2-D1<0), now automobile is deceleration regime, DSP data handler is left intact, work as D2, the variable quantity of D1 for just and exceed preset dangerous values Da(and D2-D1>Da) time, now automobile is acceleration mode, then be judged as that chaufeur will speed up pedal as brake pedal by mistake, at this moment DSP data processor controlled relay adhesive, the connection that will speed up pedal displacement sensor and ECU data bus disconnects, make the operation of chaufeur to acceleration pedal inoperative, simultaneously, accel control sends idling voltage signal and brake pedal switch closure signal to ECU data bus, ECU processes above-mentioned signal, control car deceleration or parking.
C., after the 1s of interval, DSP data handler reads the voltage data D of accelerator pedal position sensor again
3, judge whether acceleration pedal gets back to idle position, namely pass through D
3with the voltage data D of acceleration pedal when idle position
bcomparative analysis judges, if acceleration pedal does not also get back to idle position, then continue to send error stepping on accelerator pedal signal, if acceleration pedal gets back to idle position, then stop sending error stepping on accelerator pedal signal, control relay discharges, and accelerator pedal position sensor is connected with ECU, and automobile recovers normal and travels.
One as the present embodiment converts: by auxiliary connection by parallel with the brake switch near the brake pedal on automobile for one of the relay by DSP data processor controlled group of switch, when the actuating of relay, this group switch closes, thus sends speed-slackening signal to ECU.If feel to be inconvenient to connect, also can not connect, but now only have deceleration and brakeless function.
A kind of preventing will speed up the controller of pedal as brake pedal by mistake, comprise DSP data handler, relay, relay drive circuit, optic coupler, body skin, for with accelerator pedal position sensor connection plug and the socket for being connected with ECU data bus, described DSP data handler (i.e. micro controller system) for model be the data handler of DSP2812, described DSP data handler is connected with optic coupler, described optic coupler is connected with relay by relay drive circuit, described DSP data handler, relay, optic coupler and relay drive circuit are all arranged in body skin, described plug and socket is arranged at outside body skin.Be connected with accelerator pedal position sensor and ECU data bus respectively by plug and socket during use, namely described DSP data handler is connected with the accelerator pedal position sensor on automobile, and described relay is connected with the ECU data bus on automobile.
During use, the plug that the ECU data bus on former automobile is connected with accelerator pedal position sensor is pulled up from the socket of accelerator pedal position sensor, is inserted on the socket of the acceleration signal output end of controller.Again the plug of controller is inserted on the socket of accelerator pedal position sensor.After automobile energising, accel control powers on, the relay release on controller, accelerator pedal position sensor is connected with ECU, and the position that accelerator pedal position sensor will speed up pedal is converted to voltage signal, is sent to ECU, ECU processes the voltage signal sent, and controls running car.With Time Controller, the voltage signal that accelerator pedal position sensor exports is monitored and analyzing and processing.
Claims (5)
1. prevent from will speed up the method for pedal as brake pedal by mistake, it is characterized in that: comprise the steps:
By DSP data processor controlled relay, whether accelerator pedal position sensor on automobile is connected with ECU data bus and controls, detailed process is, DSP data handler carries out analyzing and processing to the voltage data that accelerator pedal position sensor sends, when change of voltage speed exceedes default dangerous values, DSP data processor controlled relay disconnects the connection of accelerator pedal position sensor and ECU, and send decelerating voltage signal to ECU, make brake pedal switch be closure state by relay simultaneously, ECU processes the decelerating voltage signal obtained and brake pedal switch signal, control car deceleration and stop travelling.
2. a kind of preventing according to claim 1 will speed up the method for pedal as brake pedal by mistake, it is characterized in that: comprise the steps:
A. first in dsp operation program, set dangerous values Da, then read the voltage data D of accelerator pedal position sensor by DSP data handler first time
1, after the 2ms of interval, read the voltage data D of accelerator pedal position sensor by DSP data handler second time
2;
B. DSP data handler is passed through to voltage data D
2, D
1carry out analyzing and processing, when the variable quantity of D2, D1 is for time negative, DSP data handler is left intact, when D2, D1 variable quantity for just and exceed preset dangerous values Da time, the adhesive of DSP data processor controlled relay, the connection that will speed up pedal displacement sensor and ECU data bus disconnects, simultaneously, send idling voltage signal to ECU data bus, ECU processes above-mentioned signal, controls car deceleration;
C., after the 1s of interval, DSP data handler reads the voltage data D of accelerator pedal position sensor again
3judge whether acceleration pedal gets back to idle position, if acceleration pedal does not also get back to idle position, then continue to send error stepping on accelerator pedal signal, if acceleration pedal gets back to idle position, then stop sending error stepping on accelerator pedal signal, control relay discharges, accelerator pedal position sensor is connected with ECU, and automobile recovers normal and travels.
3. a kind of preventing according to claim 1 will speed up the method for pedal as brake pedal by mistake, it is characterized in that: comprise the steps:
By DSP data handler, the ECU data bus on automobile is connected with accelerator pedal position sensor, brake pedal respectively, with DSP data handler, analyzing and processing is carried out to the voltage data that accelerator pedal position sensor sends, when change of voltage speed exceedes default dangerous values, DSP data processor controlled relay disconnects the connection of accelerator pedal position sensor and ECU, sends decelerating voltage signal and brake pedal switch closure signal to ECU simultaneously.
4. a kind of the preventing according to the arbitrary claim of claim 1-3 will speed up the method for pedal as brake pedal by mistake, it is characterized in that: DSP data handler is connected with the accelerator pedal position sensor on automobile, DSP data handler is connected with optic coupler, optic coupler is connected with relay by relay drive circuit, and relay is connected with the ECU data bus on automobile.
5. according to claim 4 preventing will speed up the controller of pedal as brake pedal by mistake, it is characterized in that: DSP data handler, relay, optic coupler and relay drive circuit are all arranged in body skin, be provided with plug and socket outside body skin, described plug is used for being connected with accelerator pedal position sensor, and described socket is used for being connected with ECU data bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510470391.8A CN104960511A (en) | 2015-08-04 | 2015-08-04 | Method for preventing mistaking accelerator pedal for brake pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510470391.8A CN104960511A (en) | 2015-08-04 | 2015-08-04 | Method for preventing mistaking accelerator pedal for brake pedal |
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| Publication Number | Publication Date |
|---|---|
| CN104960511A true CN104960511A (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510470391.8A Pending CN104960511A (en) | 2015-08-04 | 2015-08-04 | Method for preventing mistaking accelerator pedal for brake pedal |
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| CN (1) | CN104960511A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890656A (en) * | 2015-05-20 | 2015-09-09 | 青岛歌尔声学科技有限公司 | Circuit for judging abnormality of vehicle throttle states, and electronic equipment with circuit |
| CN107672542A (en) * | 2017-09-22 | 2018-02-09 | 株洲市江海汽车智能科技有限公司 | Mistake step on accelerator of vehicle analysis and Control system |
| CN110466351A (en) * | 2019-08-26 | 2019-11-19 | 上海申沃客车有限公司 | The detection control method that the anti-throttle of car is accidentally stepped on |
| CN111422172A (en) * | 2020-02-19 | 2020-07-17 | 韩世杰 | Automobile brake control method and system |
| WO2021072796A1 (en) * | 2019-10-18 | 2021-04-22 | 吴雯怡 | Safety throttle controller |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104890656A (en) * | 2015-05-20 | 2015-09-09 | 青岛歌尔声学科技有限公司 | Circuit for judging abnormality of vehicle throttle states, and electronic equipment with circuit |
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| CN110466351A (en) * | 2019-08-26 | 2019-11-19 | 上海申沃客车有限公司 | The detection control method that the anti-throttle of car is accidentally stepped on |
| WO2021072796A1 (en) * | 2019-10-18 | 2021-04-22 | 吴雯怡 | Safety throttle controller |
| CN111422172A (en) * | 2020-02-19 | 2020-07-17 | 韩世杰 | Automobile brake control method and system |
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Application publication date: 20151007 |
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