CN2864684Y - Vibration acceleration sensor for vehicle in vertical direction - Google Patents
Vibration acceleration sensor for vehicle in vertical direction Download PDFInfo
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- CN2864684Y CN2864684Y CN 200520010378 CN200520010378U CN2864684Y CN 2864684 Y CN2864684 Y CN 2864684Y CN 200520010378 CN200520010378 CN 200520010378 CN 200520010378 U CN200520010378 U CN 200520010378U CN 2864684 Y CN2864684 Y CN 2864684Y
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Abstract
The utility model relates to a vibration and acceleration sensor in the vertical direction of automobiles, consisting of an absorption circuit of surge voltage (1), and a limited voltage circuit (2), and it is characterized in that said vibration and acceleration sensor in the vertical direction of automobiles also comprise an X-axis acceleration chip (IC1) and dividing voltage circuit (3) and an active band-pass filter circuit (4); when the automobiles vibrate in the vertical direction (Z-axis), X-axis acceleration chip (IC1) outputs a voltage signal proportional to the intensity of vibration signal, the voltage signal through the dividing voltage circuit (3) is input to the active band-pass filter circuit (4), through which frequency is selected and which outputs (V<Out>), available to the electronic controller unit (ECU) of automotive electric jet engine for analysis and judgment and control, thereby improving on emission from automobiles and enabling emission to reach Europe III emission standard.
Description
Technical field
The utility model relates to automotive electric injection engine electronic controller (ECU), is specifically related to utilize X-axis acceleration chip to realize the sensor of detection of vertical directional acceleration signal.
Background technology
At present the motor car engine electric injection system that uses owing to be not used to detects the acceleration signal device of vertical (Z axle) direction of car load vertical vibration, make the motor car engine electric injection system not analyze and judge to the acceleration signal of vertical (Z axle) direction, therefore, there is following deficiency in existing motor car engine electric injection system: the one, when running car passes through rugged road, because the fluctuation of cranking speed, the angular velocity vector of bent axle is subjected to the influence of unsteadiness of wheels, and the fluctuation of speed of crankshaft can cause the mis-ignition of engine; The 2nd, when rough road is travelled electronic engine management system to the igniting erroneous judgement and misfire; The 3rd, engine exceeds standard in some velocity shooting discharging.
The utility model content
At the defective that above-mentioned prior art exists, technical problem to be solved in the utility model is to provide a kind of steam supply car electronic fuel injection engine electronic controller (ECU) to carry out the sensor of the vibration acceleration signal that can export vertical direction of analysis and judgement and control.
The technical solution of the utility model is that a kind of automobile vertical vibration acceleration transducer comprises:
Surge voltage absorbing circuit: be input to voltage limiting circuit after the surge pulse absorption with externally fed voltage;
Voltage limiting circuit: receive the voltage signal of surge voltage absorbing circuit output, export the required operating voltage of other circuit unit;
Described automobile vertical vibration acceleration transducer also comprises an X-axis acceleration chip IC 1 and bleeder circuit and an active band-pass filter circuit; When automobile in vertical direction (Z axle) when direction has vibration, voltage signal that is directly proportional with the vibration signal intensity of vertical (Z axle) direction of X-axis acceleration chip output, this voltage signal is input to the active band-pass filter circuit by bleeder circuit, and carry out frequency-selecting by the active band-pass filter circuit and export, offer automotive electric injection engine electronic controller (ECU) analysis and judgement and control.
A preferred version of the present utility model, the pin orientation of described X-axis acceleration chip is installed in and the X-axis parallel direction, X-axis acceleration chip is close on the PCB circuit board, the front and back of PCB circuit board with about all become with X-axis 90 the degree right angles.
A preferred version of the present utility model, described X-axis acceleration chip IC 1 is an acceleration single-axis sensors, its model is KXB01-1.50.
A preferred version of the present utility model, described active band-pass filter circuit comprises a multiplex arithmetric amplifier.
A preferred version of the present utility model, 2,6,11,13,14 pin ground connection of described X-axis acceleration chip, 3 pin connect power supply, 3 pin are by capacitor C 3 ground connection simultaneously, connect capacitor C 9 between 7 pin of X-axis acceleration chip and 8 pin, all the other pin are unsettled, when Z-direction has vibration, 8 pin of X-axis acceleration chip will be exported a voltage signal that is directly proportional with vibration signal intensity, input to the active band-pass filter circuit by bleeder circuit.
A preferred version of the present utility model, described active band-pass filter circuit is by multiplex arithmetric amplification circuit IC2 and peripheral cell resistance R 9～R18 thereof, capacitor C 4～C7 forms, the model of described computing amplification circuit IC2 is MC33204,4 normal phase input ends 3 of this computing amplification circuit IC2,5,10,12 pin are by resistance R 12 ground connection, connect the voltage of voltage limiting circuit 2 outputs simultaneously by resistance R 13, first inverting input, 2 pin of described computing amplification circuit IC2 connect first output terminal, 1 pin of operational amplifier by capacitor C 5, first output terminal, 1 pin connects second inverting input, 9 pin by resistance R 10 simultaneously, second inverting input, 9 pin connect second output terminal, 8 pin by resistance R 11 and the capacitor C 4 that is connected in parallel, second output terminal, 8 pin connect the 3rd inverting input 13 pin by resistance R 14, the 3rd inverting input 13 pin connect the 3rd output terminal 14 pin by resistance R 15, the 3rd output terminal 14 pin connect the 4th inverting input 6 pin by resistance R 17, the 4th inverting input 6 pin connect the 4th output terminal 7 pin by resistance R 18 and the capacitor C 6 that is connected in parallel, voltage stabilizing diode D2 and capacitor C 7 ground connection of the 4th output terminal 7 pin by being connected in parallel, between the 3rd inverting input 13 pin and second output terminal, 8 pin, connect resistance R 14 simultaneously, between first inverting input, 2 pin and the 3rd output terminal 14 pin, connect resistance R 16, second inverting input, 9 pin connect the voltage signal of X-axis acceleration chip and peripheral circuit 3 outputs thereof, frequency-selecting signal steam supply car electronic fuel injection engine electronic controller (ECU) analysis and judgement and the control of described the 4th output terminal 7 pin output.
The existing X-axis acceleration chip of automobile vertical vibration acceleration transducer described in the utility model utilization has been realized voltage signal that is directly proportional with the vibration signal intensity of vertical (Z axle) direction of output, carry out frequency-selecting output by the active band-pass filter circuit, the frequency-selecting signal offers available engine electronic controller (ECU) and analyzes and judge, eliminated the generation of the missing of ignition or mis-ignition phenomenon of running car appearance point when rugged road or when slightly making the road surface fully, thereby improved the discharging of automobile greatly, made discharging reach Europe III emission standard.
Description of drawings
Fig. 1 is the functional-block diagram of automobile vertical vibration acceleration transducer described in the utility model.
Fig. 2 is the circuit diagram of automobile vertical vibration acceleration transducer described in the utility model.
Fig. 3 is the X-axis acceleration chip installation direction figure in the automobile vertical vibration acceleration transducer described in the utility model.
Embodiment
Referring to Fig. 1, Fig. 2, automobile vertical vibration acceleration transducer described in the utility model comprises: surge voltage absorbing circuit 1, and the surge pulse of externally fed voltage vcc is input to voltage limiting circuit 2 after absorbing; Voltage limiting circuit 2 receives the voltage signal of surge voltage absorbing circuit 1 output, exports the required operating voltage of other circuit unit; Described automobile vertical vibration acceleration transducer also comprises an X-axis acceleration chip IC 1 and bleeder circuit 3 and an active band-pass filter circuit 4; When automobile in vertical direction (Z axle) when direction has vibration, voltage signal that is directly proportional with vibration signal intensity of X-axis acceleration chip IC 1 output, this voltage signal is input to active band-pass filter circuit 4 by bleeder circuit 3, and carries out frequency-selecting output (V by active band-pass filter circuit 4
OUt), offer automotive electric injection engine electronic controller (ECU) analysis and judgement and control.
Described surge voltage absorbing circuit 1 is made up of voltage stabilizing diode D1, capacitor C 1, voltage stabilizing diode D1 and capacitor C 1 parallel connection, and the negative pole of voltage stabilizing diode D1 connects externally fed voltage vcc, the plus earth of voltage stabilizing diode D1.
Described voltage limiting circuit 2 is made up of triode BG1, BG2, BG3 and resistance R 1～R8; the voltage of voltage limiting circuit output is added to the base stage of triode BG1; collector by triode BG1 is to active band-pass filter circuit 4 and X-axis acceleration chip and peripheral circuit 3 power supplies thereof; when additional power source voltage is elevated to the deboost value of setting; voltage limiting circuit will be exported very low voltage, protection X-axis acceleration chip IC 1 and amplifier integrated circuit (IC) 2.
The model of described X-axis acceleration chip IC 1 is KXB01-1.50.This X-axis acceleration chip can buy on market.2,6,11,13,14 pin ground connection of described X-axis acceleration chip IC 1,3 pin connect power supply, 3 pin are by capacitor C 3 ground connection simultaneously, between 7 pin of X-axis acceleration chip IC 1 and 8 pin, connect capacitor C 9, all the other pin are unsettled, when Z-direction has vibration, 8 pin of X-axis acceleration chip IC 1 will be exported a voltage signal that is directly proportional with vibration signal intensity and be connected to source band pass filter circuit 4 by bleeder circuit 3.
Described bleeder circuit 3 is made up of resistance R 9, R19, R20.
Described active band-pass filter circuit 4 is made up of multiplex arithmetric amplification circuit IC2 and peripheral cell resistance R 9～R18, capacitor C 4～C7.The model of described computing amplification circuit IC2 is MC33204,4 normal phase input ends 3 of this computing amplification circuit IC2,5,10,12 pin are by resistance R 12 ground connection, connect the voltage of voltage limiting circuit 2 outputs simultaneously by resistance R 13, first inverting input, 2 pin of described computing amplification circuit IC2 connect first output terminal, 1 pin of operational amplifier by capacitor C 5, first output terminal, 1 pin connects second inverting input, 9 pin by resistance R 10 simultaneously, second inverting input, 9 pin connect second output terminal, 8 pin by resistance R 11 and the capacitor C 4 that is connected in parallel, second output terminal, 8 pin connect the 3rd inverting input 13 pin by resistance R 14, the 3rd inverting input 13 pin connect the 3rd output terminal 14 pin by resistance R 15, the 3rd output terminal 14 pin connect the 4th inverting input 6 pin by resistance R 17, the 4th inverting input 6 pin connect the 4th output terminal 7 pin by resistance R 18 and the capacitor C 6 that is connected in parallel, voltage stabilizing diode D2 and capacitor C 7 ground connection of the 4th output terminal 7 pin by being connected in parallel, between the 3rd inverting input 13 pin and second output terminal, 8 pin, connect resistance R 14 simultaneously, between first inverting input, 2 pin and the 3rd output terminal 14 pin, connect resistance R 16, second inverting input, 9 pin connect the voltage signal of X-axis acceleration chip and peripheral circuit 3 outputs thereof, frequency-selecting signal steam supply car electronic fuel injection engine electronic controller (ECU) analysis and judgement and the control of described the 4th output terminal 7 pin output.Wherein multiplex arithmetric amplification circuit IC2 can be.
Referring to Fig. 3, the pin orientation of described X-axis acceleration chip (IC1) is installed in and the X-axis parallel direction, and X-axis acceleration chip (IC1) is close on the PCB circuit board 5, the front and back of PCB circuit board 5 with about all become with X-axis 90 the degree right angles.
Claims (6)
1, a kind of automobile vertical vibration acceleration transducer comprises:
Surge voltage absorbing circuit (1): be input to voltage limiting circuit (2) after the surge pulse absorption with the externally fed voltage vcc;
Voltage limiting circuit (2): receive the voltage signal of surge voltage absorbing circuit (1) output, export the required operating voltage of other circuit unit;
It is characterized in that: described automobile vertical vibration acceleration transducer also comprises an X-axis acceleration chip (IC1) and a bleeder circuit (3) and an active band-pass filter circuit (4); When automobile in vertical direction (Z axle) when direction has vibration, voltage signal that is directly proportional with vibration signal intensity of X-axis acceleration chip (IC1) output, this voltage signal is input to active band-pass filter circuit (4) by bleeder circuit (3), and carries out frequency-selecting output (V by active band-pass filter circuit (4)
OUt), offer automotive electric injection engine electronic controller (ECU) analysis and judgement and control.
2 automobile vertical vibration acceleration transducers according to claim 1, it is characterized in that: the pin orientation of described X-axis acceleration chip (IC1) is installed in and the X-axis parallel direction, X-axis acceleration chip (IC1) is close on the PCB circuit board (5), the front and back of PCB circuit board (5) with about all become with X-axis 90 the degree right angles.
3, automobile vertical vibration acceleration transducer according to claim 2, it is characterized in that: described X-axis acceleration chip (IC1) is an acceleration single-axis sensors, and its model is KXB01-1.50.
4, automobile vertical vibration acceleration transducer according to claim 1, it is characterized in that: described active band-pass filter circuit (4) comprises a multiplex arithmetric amplifier (IC2).
5, according to claim 1 or 2 or 3 or 4 described automobile vertical vibration acceleration transducers, it is characterized in that: 2,6,11,13,14 pin ground connection of described X-axis acceleration chip (IC1), 3 pin connect power supply, 3 pin are by capacitor C 3 ground connection simultaneously, between 7 pin of X-axis acceleration chip (IC1) and 8 pin, connect capacitor C 9, all the other pin are unsettled, when Z-direction has vibration, 8 pin of X-axis acceleration chip (IC1) will be exported a voltage signal that is directly proportional with vibration signal intensity and be connected to source band pass filter circuit (4) by bleeder circuit (3).
6, automobile vertical vibration acceleration transducer according to claim 5, it is characterized in that: described active band-pass filter circuit (4) is by multiplex arithmetric amplification circuit (IC2) and peripheral cell resistance R 9～R18 thereof, capacitor C 4～C7 forms, the model of described computing amplification circuit (IC2) is MC33204,4 normal phase input ends 3 of this computing amplification circuit (IC2), 5,10,12 pin are by resistance R 12 ground connection, connect the voltage of voltage limiting circuit (2) output simultaneously by resistance R 13, first inverting input, 2 pin of described computing amplification circuit (IC2) connect first output terminal, 1 pin of operational amplifier by capacitor C 5, first output terminal, 1 pin connects second inverting input, 9 pin by resistance R 10 simultaneously, second inverting input, 9 pin connect second output terminal, 8 pin by resistance R 11 and the capacitor C 4 that is connected in parallel, second output terminal, 8 pin connect the 3rd inverting input 13 pin by resistance R 14, the 3rd inverting input 13 pin connect the 3rd output terminal 14 pin by resistance R 15, the 3rd output terminal 14 pin connect the 4th inverting input 6 pin by resistance R 17, the 4th inverting input 6 pin connect the 4th output terminal 7 pin by resistance R 18 and the capacitor C 6 that is connected in parallel, voltage stabilizing diode D2 and capacitor C 7 ground connection of the 4th output terminal 7 pin by being connected in parallel, between the 3rd inverting input 13 pin and second output terminal, 8 pin, connect resistance R 14 simultaneously, between first inverting input, 2 pin and the 3rd output terminal 14 pin, connect resistance R 16, second inverting input, 9 pin connect the voltage signal of X-axis acceleration chip and peripheral circuit (3) output thereof, frequency-selecting signal steam supply car electronic fuel injection engine electronic controller (ECU) analysis and judgement and the control of described the 4th output terminal 7 pin output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010378 CN2864684Y (en) | 2005-11-24 | 2005-11-24 | Vibration acceleration sensor for vehicle in vertical direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010378 CN2864684Y (en) | 2005-11-24 | 2005-11-24 | Vibration acceleration sensor for vehicle in vertical direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864684Y true CN2864684Y (en) | 2007-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010378 Expired - Fee Related CN2864684Y (en) | 2005-11-24 | 2005-11-24 | Vibration acceleration sensor for vehicle in vertical direction |
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| CN (1) | CN2864684Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551240A (en) * | 2015-12-08 | 2016-05-04 | 东南大学 | Automobile exhaust discharge determination method based on different road conditions |
-
2005
- 2005-11-24 CN CN 200520010378 patent/CN2864684Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551240A (en) * | 2015-12-08 | 2016-05-04 | 东南大学 | Automobile exhaust discharge determination method based on different road conditions |
| CN105551240B (en) * | 2015-12-08 | 2017-11-03 | 东南大学 | Motor vehicle exhaust emission assay method based on different condition of road surface |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |