CN201419671Y - Automobile parking brake alarm - Google Patents
Automobile parking brake alarm Download PDFInfo
- Publication number
- CN201419671Y CN201419671Y CN2009201561101U CN200920156110U CN201419671Y CN 201419671 Y CN201419671 Y CN 201419671Y CN 2009201561101 U CN2009201561101 U CN 2009201561101U CN 200920156110 U CN200920156110 U CN 200920156110U CN 201419671 Y CN201419671 Y CN 201419671Y
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- signal
- parking brake
- automobile
- control circuit
- signals
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Abstract
The utility model discloses an automobile parking brake alarm, which comprises an integrated operational amplifier capable of converting speed signals into digital signals. An input end receives parking brake signals, driver seating signals and the digital signals, an output end is connected with a single chip microphone of a first control circuit branch and a second control circuit branch, when levels of the digital signals, the parking brake signals and the driver seating signals meet first preset conditions, the single chip microcomputer starts a first alarm device via the first control circuit branch, and when levels of the digital signals, the parking brake signals and the driver seating signals meet second preset conditions, the single chip microcomputer starts a second alarm devicevia the second control circuit branch, thereby warning drivers to release a parking brake during traveling to prevent damaging automobile brake pads and motor, and reminding the driver of tightening the parking brake when parking on a slope road to prevent unstrained parking brake releasing and prevent damaging the automobile or hurting people and the like due to slipping of the automobile.
Description
Technical field
The utility model relates to the automobile electronics technical field, relates in particular to a kind of automobile parking braking annunciator.
Background technology
At present, all automobiles all have emergency brake system, when chaufeur tension Parking Brake carries out braking during standstill, light the braking indicator lamp, when loosening braking during standstill, extinguish the braking indicator lamp, note brake-applying handle with the prompting navigating mate.But because it only can provide the caution of automobile tail light, chaufeur is not careful sometimes, in the situation down train of having forgotten to loosen Parking Brake, can cause the wearing and tearing of vehicle brake-holder block and the infringement of driving engine.
Application number is that the Chinese patent of CN03269209.9 discloses a kind of automobile parking braking reminiscences, this automobile parking braking reminiscences structure as shown in Figure 1, comprise: the integrated operational amplifier 4 that vehicle speed signal 2 is transformed into digital signal, the mouth of integrated operational amplifier 4 and parking brake signals 1 are received respectively on the input pin of micro controller system 5, and the mouth of micro controller system is connected with by monolithic processor controlled warning device.
Though do not send warning when technique scheme can be unclamped Parking Brake in the driver drives vehicle process, have following defective:
Forget that when automobile driver stops on sloping road this patent scheme can not be sent warning when the tension Parking Brake just left, exist automobile to slide and cause damage or other people personal safety is constituted the potential danger of harm.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of automobile parking braking annunciator, not only unclamping Parking Brake when driver drives vehicle reports to the police in this case, and do not strain Parking Brake when stopping and just also can report to the police, thereby avoided automobile to slide and cause damage or other people personal safety is constituted the appearance of situation about endangering from car on chaufeur slope road.
For achieving the above object, the utility model provides following technical scheme:
A kind of automobile parking braking annunciator comprises:
Input end receives parking brake signals 1, chaufeur take one's seat signal 2 and described digital signal, and mouth connects the micro controller system 5 of first control circuit branch road and second control circuit branch road;
Described micro controller system 5 satisfies first when pre-conditioned at the take one's seat level value of signal 2 of described digital signal, parking brake signals 1 and chaufeur, start first warning device 6 by described first control circuit, and, satisfy second when pre-conditioned at the take one's seat level value of signal 2 of described digital signal, parking brake signals 1 and chaufeur, start second warning device 7 and 8 by the second control circuit branch road.
Preferably, described chaufeur is taken one's seat signal by piezoelectric cable generation built-in under the operating seat, and described piezoelectric cable is connected with micro controller system with the automobile bonding by two common low-voltage signal lines.
Preferably, described first control circuit props up route current-limiting resistance R4 and aerotron T1 forms, and described current-limiting resistance R4 is connected to the mouth of described micro controller system, and described aerotron T1 is connected to described first warning device.
Preferably, described second control circuit props up route current-limiting resistance R5 and aerotron T2 forms, and described current-limiting resistance R5 is connected to the mouth of described micro controller system, and described aerotron T2 is connected to described second warning device.
Preferably, described first pre-conditionedly is: described parking brake signals is a low level, and described car speed sensor has impulse singla, and the described chaufeur signal of taking one's seat is low level or high level.
Preferably, described second pre-conditionedly is: described parking brake signals is a high level, and described car speed sensor has impulse singla or pulse-free signal, and the described chaufeur signal of taking one's seat is a low level.
Preferably, described first warning device is loudspeaker.
Preferably, described second warning device is buzzer phone or loudspeaker.
Preferably, described second warning device comprises sound-producing device and hazard warning signal flasher, and described sound-producing device is buzzer phone or loudspeaker.
In the technique scheme, described automobile parking braking annunciator is with parking brake signals, vehicle speed signal and the chaufeur signal of taking one's seat is input in the circuit that is made of micro controller system, after carrying out judgment processing by micro controller system, send alerting signal by annunciator, thereby not only can remind chaufeur when driving, to unclamp Parking Brake, avoid infringement that automobile brake brake facing and driving engine are caused, but also can remind chaufeur tension Parking Brake when the parking of sloping road, leave the automobile damage that the back automobile slides and causes thereby avoided not straining Parking Brake, to other people harm such as personal safety.
Description of drawings
Fig. 1 is the principle schematic of prior art;
Fig. 2 is the principle schematic of the utility model embodiment, and description of drawings is as follows:
1---parking brake signals input end: high level (or low level) during the tension Parking Brake, low level when unclamping Parking Brake (or high level).
2---the chaufeur signal input part of taking one's seat: high level when chaufeur is taken the seat, low level when chaufeur leaves the seat.
3---the vehicle speed signal input end: pulse-free signal during parking has the consecutive pulses signal during driving.
4---signal processing unit: integrated operational amplifier is processed into high and low level signal with impulse singla 3.
5---micro controller system: its effect is that the various combination to signal 1,2,3 carries out judgment processing, and output control signal, start-up control circuit are implemented to report to the police.
6---connect the horn of vehicle relay input end.
7---connect automobile buzzer phone positive terminal.
8---connect automobile hazard warning signal flasher positive terminal.
R1, R2 are divider resistance, are connected on an input end of integrated operational amplifier, as a comparison the reference voltage of signal.
C3, R3 are the reset circuit of micro controller system.
R4 is a current-limiting resistance, and T1 is for driving the aerotron of horn of vehicle relay.
R5 is a current-limiting resistance, and T2 is for driving the aerotron of automobile buzzer phone and automobile hazard warning signal flasher.
X, C1, C2 constitute the external crystal oscillating circuit of micro controller system internal oscillator.
The specific embodiment
The utility model embodiment provide a solution, not only reports to the police also and to report to the police when chaufeur is not strained Parking Brake just from car can stop on sloping road the time not unclamping Parking Brake behind the running car.
Understand the technical solution of the utility model for those skilled in the art can be known, the technical solution of the utility model is described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of automobile parking braking annunciator comprises the integrated operational amplifier 4 that vehicle speed signal 3 is transformed into digital signal, R1, the R2 bleeder circuit of signal benchmark voltage are provided for integrated operational amplifier 4, micro controller system 5 and reset circuit thereof (constituting) and the external crystal oscillating circuit that constitutes by X, C1, C2 by C3, R3, two control subcircuits (constituting by R4, T1 and R5, T2 respectively) of control annunciator.The mouth of integrated operational amplifier 4, parking brake signals 1 and the chaufeur signal 2 of taking one's seat is received the input end of micro controller system 5 respectively, the mouth of micro controller system is controlled first warning device through R4, T1 control branch road, controls second warning device through R5, T2 control branch road.Described first warning device is loudspeaker, and described second warning device comprises sound-producing device and hazard warning signal flasher, and described sound-producing device is buzzer phone or loudspeaker, and described second warning device also can only adopt buzzer phone or loudspeaker.
Its principle of work is as follows: will strain and unclamp height (low), low (height) level signal that Parking Brake produces, the low level signal that chaufeur produces when taking the high level signal of seat generation or leaving the seat, impulse singla from car speed sensor, send in the circuit that constitutes by micro controller system, after carrying out judgment processing by micro controller system, report to the police by warning device.If unclamping the parking brake signals that Parking Brake produces is high level, it is high level that chaufeur is taken chaufeur that the seat the produces signal of taking one's seat, and car speed sensor has pulse during running car.
There are following several situations:
Situation one: when parking brake signals is low level (a tension Parking Brake), during the car speed sensor no pulse, no matter whether chaufeur takes one's seat, and does not all produce warning;
Situation two: when parking brake signals is high level (unclamping Parking Brake), chaufeur is taken one's seat signal when being high level (chaufeur is taken one's seat), and no matter car speed sensor has no pulse, does not all produce warning;
Situation three: when parking brake signals is low level (a tension Parking Brake), when car speed sensor had pulse, no matter whether chaufeur took one's seat, and all produced and reported to the police.Because these three kinds of signals are through after the judgment processing of micro controller system, make horn of vehicle relay open contact closure by R4, T1 control branch road, the conducting of horn trumpet control circuit, longtime call of horn is reported to the police, thereby remind chaufeur to unclamp Parking Brake, avoid the infringement that automobile brake brake facing and electrical generator are caused;
Situation four: when parking brake signals is high level (unclamping Parking Brake), chaufeur is taken one's seat signal when being low level (chaufeur leaves the seat), and no matter car speed sensor has no pulse, all produces and reports to the police.Because these three kinds of signals are through after the judgment processing of micro controller system, pass through R5, T2 control circuit branch road makes the conducting of automobile buzzer phone control circuit, the buzzer phone long time of alarm, if (R5, sound-producing device in second warning device of T2 control branch road control is buzzer phone and loudspeaker, then buzzer phone and loudspeaker are reported to the police simultaneously) if R5, also has hazard warning signal flasher except sound-producing device in second warning device of T2 control branch road control, then make the conducting of automobile hazard warning signal flasher control circuit simultaneously, automobile hazard warning signal flasher flashing light alarm, thereby remind chaufeur not from car, should carry out braking during standstill immediately, because of braking during standstill reason not automobile is slided when avoiding stopping, bring automobile to damage on sloping road, to other people harm such as personal safety.
The utility model only utilizes and the signal that switch produced, vehicle speed signal and the chaufeur of the Parking Brake interlock signal of taking one's seat, and just can realize its purpose through processing of the present utility model.At present on the automobile preceding two kinds of signals are arranged nearly all, the chaufeur signal of taking one's seat only needs the piezoelectric cable of a built-in regular length under the seat just can obtain.Therefore no matter be car production enterprise, or maintenance factory, beauty decoration factory, install all very simply that its installation site does not have specific (special) requirements, the installation of any position gets final product under bridge column.Especially for car production enterprise,, add this product, just can increase the function of a practicality, be easy to realize so the utlity model has as long as increase 6-8 bar wire harness, with low cost, the function practical characteristics.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1, a kind of automobile parking braking annunciator is characterized in that, comprising:
Vehicle speed signal is transformed into the integrated operational amplifier of digital signal;
Input end receives parking brake signals, chaufeur take one's seat signal and described digital signal, and mouth connects the micro controller system of first control circuit branch road and second control circuit branch road;
Described micro controller system satisfies first when pre-conditioned at the take one's seat level value of signal of described digital signal, parking brake signals and chaufeur, start first warning device by described first control circuit, and, satisfy second when pre-conditioned at the take one's seat level value of signal of described digital signal, parking brake signals and chaufeur, start second warning device by the second control circuit branch road.
2, automobile parking braking annunciator according to claim 1 is characterized in that, described chaufeur is taken one's seat signal by piezoelectric cable generation built-in under the operating seat, and described piezoelectric cable is connected with micro controller system with the automobile bonding by two common low-voltage signal lines.
3, automobile parking braking annunciator according to claim 1, it is characterized in that, described first control circuit props up route current-limiting resistance R4 and aerotron T1 forms, and described current-limiting resistance R4 is connected to the mouth of described micro controller system, and described aerotron T1 is connected to described first warning device.
4, automobile parking braking annunciator according to claim 1, it is characterized in that, described second control circuit props up route current-limiting resistance R5 and aerotron T2 forms, and described current-limiting resistance R5 is connected to the mouth of described micro controller system, and described aerotron T2 is connected to described second warning device.
5, automobile parking braking annunciator according to claim 1 is characterized in that, described first pre-conditionedly is: described parking brake signals is a low level, and described car speed sensor has impulse singla, and the described chaufeur signal of taking one's seat is low level or high level.
6, automobile parking braking annunciator according to claim 1, it is characterized in that, described second pre-conditionedly is: described parking brake signals is a high level, and described car speed sensor has impulse singla or pulse-free signal, and the described chaufeur signal of taking one's seat is a low level.
7, automobile parking braking annunciator according to claim 1 is characterized in that, described first warning device is loudspeaker.
8, automobile parking braking annunciator according to claim 1 is characterized in that, described second warning device is buzzer phone or loudspeaker.
9, automobile parking braking annunciator according to claim 1 is characterized in that, described second warning device comprises sound-producing device and hazard warning signal flasher, and described sound-producing device is buzzer phone or loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201561101U CN201419671Y (en) | 2009-06-05 | 2009-06-05 | Automobile parking brake alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201561101U CN201419671Y (en) | 2009-06-05 | 2009-06-05 | Automobile parking brake alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201419671Y true CN201419671Y (en) | 2010-03-10 |
Family
ID=41806320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201561101U Expired - Fee Related CN201419671Y (en) | 2009-06-05 | 2009-06-05 | Automobile parking brake alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201419671Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527636A (en) * | 2014-11-19 | 2015-04-22 | 力帆实业(集团)股份有限公司 | Parking brake safety prompting system and prompting method for car |
-
2009
- 2009-06-05 CN CN2009201561101U patent/CN201419671Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527636A (en) * | 2014-11-19 | 2015-04-22 | 力帆实业(集团)股份有限公司 | Parking brake safety prompting system and prompting method for car |
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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: 20100310 Termination date: 20110605 |