CN203093754U - Mistaken acceleration prevention device for instructional cars - Google Patents
Mistaken acceleration prevention device for instructional cars Download PDFInfo
- Publication number
- CN203093754U CN203093754U CN 201220656267 CN201220656267U CN203093754U CN 203093754 U CN203093754 U CN 203093754U CN 201220656267 CN201220656267 CN 201220656267 CN 201220656267 U CN201220656267 U CN 201220656267U CN 203093754 U CN203093754 U CN 203093754U
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- control unit
- electronic control
- throttle
- pressure sensor
- speed sensor
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Abstract
The utility model discloses a mistaken acceleration prevention device for instructional cars, which comprises a speed sensor, a pressure sensor, an electronic control unit, an oil injector and an alarm, the speed sensor is connected with the shaft of an accelerator pedal, the pressure sensor is located on a steering wheel, wherein the pressure sensor and the speed sensor are respectively connected with the input ends of the electronic control unit, and the oil injector and the alarm are respectively connected with the output ends of the electronic control unit. When a leaner steps on the accelerator by mistake instead of the brake under emergency, the device can stop oil supply for the engine, so that the car can stop when an instructor steps on the brake, and an unsafe accident is prevented.
Description
Technical field
The utility model relates to the automotive safety technology, and particularly a kind of instructional car is prevented the throttle false step on device.
Background technology
Drive a car, throttle and brake all are to be controlled by right crus of diaphragm, when the student drives a car technology in exercise, owing to be unfamiliar with nervous in addition, tend to mis-accelerator pressing, and present instructional car, throttle needs to stop immediately as student's mis-accelerator pressing (throttle is when braking) or chance emergency situation only by student's control, and flurried middle student is not put as still slamming throttle, continuation is refueled to driving engine, powered vehicle is travelled, and the coach can only control brake, can't throttle be controlled, therefore vehicle can not in time stop and have an accident, thereby a kind of device that cuts off engine oil of controlling when student's mis-accelerator pressing of necessary research.At present, along with the development of automotive technology, most instructional cars all are the EFI cars, and step on the also comparatively imperfect technology of control for the throttle mistake of EFI car.
Summary of the invention
The potential safety hazard that in driving a car, has mis-accelerator pressing (throttle is when brake) at the student, the utility model purpose is, provide a kind of instructional car to prevent the throttle false step on device, when the student needs anxious touching on the brake when but stepping on into throttle in emergency situation, this device energy shutting engine down fuel feeding, make the trainer can make the automobile stagnation of movement when stepping on brake, prevent the generation of dangerous accident.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of instructional car is prevented the throttle false step on device, comprise the speed sensor that links to each other with the Das Gaspedal axle, be positioned at the pressure sensor on the bearing circle, electronic control unit, fuel injector and annunciator, wherein pressure sensor links to each other with the electronic control unit input end respectively with speed sensor, and fuel injector links to each other with the electronic control unit mouth respectively with annunciator.
Also comprise the tachogen coaxial with Das Gaspedal, velocity amplitude when the normal circumstances step on the accelerator is quickened is set at a threshold value, when meeting the emergency situation mistake with throttle during when the violent step on the accelerator of brake, this moment, the speed of Das Gaspedal was higher than threshold value, and indication is mis-accelerator pressing at this moment.When the signal of two sensors all is higher than threshold value, i.e. expression is in emergency circumstances stepped on the throttle mistake, and the two sensors signal is transferred to vehicle ECU, and ECU judges that two conditions all satisfy, to fuel injector output stopping fuel injection signal, and the alarm equipment alarm of output signal control simultaneously.
Pressure sensor of the present utility model is a kind of bearing circle cover of being filled by hydraulic oil, be enclosed within on the bearing circle, hydraulic fluid pressure is guided to the pressure sensor that is installed on the steering wheel shaft with pressure guiding pipe then, experience the grip and the pressure of staff by pressure sensor, this pressure and the normal door limit value that configures are compared, when this pressure is lower than the threshold value that configures, represent that the chaufeur mood is normal at this moment, automobile is in safe motoring condition; When this pressure during greater than threshold value, the indication chaufeur is nervous, meets emergency situation.
Speed sensor of the present utility model is installed on the throttle S. A., when step on the accelerator, speed sensor will be measured the rotative speed of throttle, throttle speed setting when vehicle under the cruising situation is quickened is a threshold value, Das Gaspedal speed during with running car and threshold value are relatively, when throttle speed was lower than threshold value, expression vehicle this moment was in normal acceleration mode; When throttle speed was higher than threshold value, the expression vehicle was in a state of emergency at this moment, and chaufeur is stepped on the throttle mistake.
The output signal of two sensors is sent into vehicle electronic control unit (ECU), when two sensor two signals all are higher than threshold value, electronic control unit (ECU) judges that automobile is in the throttle mistake and steps on state, electronic control unit (ECU) sends the oil-break signal to the actuating unit fuel injector, fuel injector stops oil spout, this moment, chaufeur was stepped on the throttle, the trainer who is positioned on the front passenger's seat steps on brake pedal, automobile is with stagnation of movement, prevented the generation of dangerous accident, electronic control unit (ECU) produces alerting signal simultaneously, is delivered to annunciator, and prompting chaufeur throttle mistake is stepped on.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with the drawings and specific embodiments the utility model particular content is described in further detail.
The specific embodiment
With reference to figure 1, the anti-throttle false step on device of instructional car of the present utility model comprises the speed sensor that links to each other with the Das Gaspedal axle, be positioned at the pressure sensor on the bearing circle, electronic control unit, fuel injector and annunciator, wherein pressure sensor links to each other with the electronic control unit input end respectively with speed sensor, and fuel injector links to each other with the electronic control unit mouth respectively with annunciator.
Pressure sensor adopts piezoelectric force transducer in the present embodiment, and it can measure 10
-3N to 10
4Power in the KN scope, piezoelectric is lead zirconate titanate (PZT).During normal driving, the pressure that chaufeur acts on the bearing circle is less, when running into emergency situation, the power that chaufeur is applied on the bearing circle increases, the stressed back of piezoelectric produces piezoeffect, and sensor produces faint electric signal, and this signal is sent into ECU and threshold value after by amplification filtering relatively, when this signal greater than threshold value, vehicle is in the emergency running state.
The Das Gaspedal speed sensor adopts the Hall-type revolution counter in the present embodiment, and hall device adopts the GaAs material, is installed on the Das Gaspedal S. A..When automobile was in normal acceleration mode, the rotating speed of Das Gaspedal was less, and when meeting the emergency situation driver fault misstepping on accelerator, the Das Gaspedal rotating speed is higher than normal threshold value, and ECU judges that automobile is in the throttle mistake and steps on state.
In the present embodiment, phonetic alarm device adopts Beijing core sound exhibition to open up the PM5020 speech chip that the electronics technology Co., Ltd is produced, its can be real-time the processing of being exported of reception information process unit after control signal, and send corresponding voice suggestion by the loudspeaker that drive this unit.
With reference to figure 1, workflow of the present utility model is as follows.The signal of piezoelectric transducer and Hall-type revolution counter is delivered to vehicle electronic control unit (ECU), when two incoming signals all are high level, electronic control unit (ECU) judges that vehicle is in the throttle mistake and steps on state, change the impulse singla that inputs to fuel injector, make fuel injection signal remain on low level, the driving engine oil-break; Simultaneously, electronic control unit (ECU) output one voltage signal sends signal to the PM5020 speech chip, the voice suggestion of being correlated with then, and prompting chaufeur throttle mistake is stepped on.
Claims (4)
1. an instructional car is prevented the throttle false step on device, it is characterized in that: comprise the speed sensor that links to each other with the Das Gaspedal axle, be positioned at the pressure sensor on the bearing circle, electronic control unit, fuel injector and annunciator, wherein pressure sensor links to each other with the electronic control unit input end respectively with speed sensor, and fuel injector links to each other with the electronic control unit mouth respectively with annunciator.
2. instructional car as claimed in claim 1 is prevented the throttle false step on device, it is characterized in that: described pressure sensor adopts piezoelectric force transducer.
3. instructional car as claimed in claim 1 is prevented the throttle false step on device, it is characterized in that: described speed sensor adopts the Hall-type revolution counter.
4. instructional car as claimed in claim 1 is prevented the throttle false step on device, it is characterized in that: described annunciator is selected the PM5020 speech chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656267 CN203093754U (en) | 2012-11-30 | 2012-11-30 | Mistaken acceleration prevention device for instructional cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656267 CN203093754U (en) | 2012-11-30 | 2012-11-30 | Mistaken acceleration prevention device for instructional cars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093754U true CN203093754U (en) | 2013-07-31 |
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ID=48845185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656267 Expired - Fee Related CN203093754U (en) | 2012-11-30 | 2012-11-30 | Mistaken acceleration prevention device for instructional cars |
Country Status (1)
| Country | Link |
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| CN (1) | CN203093754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802828A (en) * | 2014-02-19 | 2014-05-21 | 安徽江淮汽车股份有限公司 | Driving safety auxiliary method and device based on subconscious motion of driver |
| CN104386046A (en) * | 2014-09-18 | 2015-03-04 | 李军廷 | Braking method, braking device and automobile |
| CN109493680A (en) * | 2018-09-30 | 2019-03-19 | 翼空间(重庆)创业孵化器股份有限公司 | A kind of training vehicle double steering wheel course changing control disconnecting device |
-
2012
- 2012-11-30 CN CN 201220656267 patent/CN203093754U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802828A (en) * | 2014-02-19 | 2014-05-21 | 安徽江淮汽车股份有限公司 | Driving safety auxiliary method and device based on subconscious motion of driver |
| CN104386046A (en) * | 2014-09-18 | 2015-03-04 | 李军廷 | Braking method, braking device and automobile |
| CN109493680A (en) * | 2018-09-30 | 2019-03-19 | 翼空间(重庆)创业孵化器股份有限公司 | A kind of training vehicle double steering wheel course changing control disconnecting device |
| CN109493680B (en) * | 2018-09-30 | 2020-12-04 | 翼空间(重庆)创业孵化器股份有限公司 | Double-steering-wheel steering control cutting device of exercise bicycle |
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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: 20130731 Termination date: 20131130 |