CN204186480U - A kind of engine water pump assembly stable water pressure module - Google Patents
A kind of engine water pump assembly stable water pressure module Download PDFInfo
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- CN204186480U CN204186480U CN201420572313.XU CN201420572313U CN204186480U CN 204186480 U CN204186480 U CN 204186480U CN 201420572313 U CN201420572313 U CN 201420572313U CN 204186480 U CN204186480 U CN 204186480U
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Abstract
The utility model provides a kind of engine water pump assembly stable water pressure module, it comprises hydraulic pressure sensor module, rotating speed sampling module, engine governed speed module and CPU module, described hydraulic pressure sensor module comprises input end and connects the hydraulic pressure sensor of water pump assembly is connected described hydraulic pressure sensor output terminal hydraulic pressure sample circuit with input end, and the output terminal of described hydraulic pressure sample circuit connects the input end of CPU module; The speed probe that described rotating speed sampling module comprises input end connecting engine speed regulator is connected the rotating speed sample circuit of described speed probe with input end, the output terminal of described rotating speed sample circuit connects the input end of central processing unit (CPU); The input end of the output terminal connecting engine speed adjusting module of described central processing unit (CPU), the electronic speed regulator of the output terminal connecting engine of described engine governed speed module.Engine water pump assembly stable water pressure module has design science, hydraulic pressure rotating speed detects in real time for this, adjust hydraulic pressure advantage more easily.
Description
Technical field
The utility model relates to a kind of engine water pump control module, specifically, relate to a kind of engine water pump assembly stable water pressure module.
Background technique
Perfect not for the hydraulic pressure detection means of engine water pump assembly at present, detecting method falls behind, and can not detect in real time and regulate, the control ability for engine water pump assembly water outlet intake pressure be poor.
In order to solve above Problems existing, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, thus a kind of design science is provided, hydraulic pressure rotating speed detects in real time, adjust hydraulic pressure a kind of engine water pump assembly stable water pressure module more easily.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of engine water pump assembly stable water pressure module, comprise hydraulic pressure sensor module, rotating speed sampling module, engine governed speed module and CPU module, described hydraulic pressure sensor module comprises input end and connects the hydraulic pressure sensor of water pump assembly is connected described hydraulic pressure sensor output terminal hydraulic pressure sample circuit with input end, and the output terminal of described hydraulic pressure sample circuit connects the input end of CPU module; The speed probe that described rotating speed sampling module comprises input end connecting engine speed regulator is connected the rotating speed sample circuit of described speed probe with input end, the output terminal of described rotating speed sample circuit connects the input end of central processing unit (CPU); The input end of the output terminal connecting engine speed adjusting module of described central processing unit (CPU), the electronic speed regulator of the output terminal connecting engine of described engine governed speed module.
Described on base, described CPU module comprises the hydraulic pressure comparator, the base stage that are connected to hydraulic pressure sample circuit output terminal and is connected to the triode Q3 of this hydraulic pressure comparator output terminal and is connected to the relay switch of this triode Q3 emitter, and described relay switch controls the break-make of engine governed speed module.
Described on base, described rotating speed sample circuit comprises transient voltage suppressor and the resistance R1 that one end is all connected to speed probe output terminal, one end of the other end contact resistance R2 of described resistance R1 and one end of electric capacity C1, the other end of described electric capacity C1 connects the other end of transient voltage suppressor respectively, one end of resistance R4, the positive pole of diode D2 and the emitter of triode Q1, the other end of described resistance R2, the other end of described resistance R4, the base stage of the equal connecting triode Q1 of negative pole of described diode D2, the collector electrode of described triode Q1 connects power supply respectively, one end of rotating speed sample circuit output terminal and electric capacity C2, the other end of described electric capacity C2, the equal ground connection of emitter of described triode Q1.
Described on base, described hydraulic pressure sample circuit comprises the transient voltage suppressor, resistance R6 and the power supply that are all connected to hydraulic pressure sensor output terminal, eliminator is connected with, the other end of described transient voltage suppressor and the equal ground connection of described eliminator between the other end of resistance R6 and output terminal.
Described on base, described CPU module is by engine water pump assembly described in CANBUS model calling.
The utility model hinge structure has substantive distinguishing features and progress, and specifically, the utility model arranges hydraulic pressure sensor for gathering hydraulic pressure, and is transferred to CPU module by hydraulic pressure sample circuit; The speed regulator of motor arranges speed probe and gathers rotary speed information, and be transferred to CPU module by rotating speed sample circuit, CPU module can carry out contrast to hydraulic pressure and rotating speed and judge, and then by engine governed speed module adjustment engine speed, reach the object controlling hydraulic pressure.
Further described CPU module comprises the hydraulic pressure comparator circuit being connected to hydraulic pressure sample circuit output terminal and the relay switch being connected to hydraulic pressure comparator output terminal, compared by hydraulic pressure comparator circuit and standard water pressure, if hydraulic pressure is large, export high level, triode Q3 conducting, relay obtains electric closed, engine governed speed module obtains electric, carries out speed governing, simultaneously to motor, the rotary speed data display that rotating speed sampling module obtains sampling, for reference during staff's speed governing.
Further, resistance R1, R2 and R4 in rotating speed sample circuit form bleeder circuit, are controlled conducting and the cut-off of triode Q1, when the voltage on R4 is greater than 0.8V by the voltage change distributing to R4, triode Q1 is on state, and this circuit output end voltage is 0.6V; When the voltage on R4 is less than 0.8V, triode Q1 is in by state, and this circuit output end voltage is 5V, and the principle of this circuit utilizes the conducting of triode and cut-off that sampled signal is converted to rectangular wave by sine wave.
The Instantaneous high-pressure twin zener dioder of input end is for absorbing instantaneous high pressure; avoid other component wear; resistance R1; R2 plays metering function, is that the base stage of triode Q1 is in normal range of operation, and diode D2 protects triode Q1 reverse breakdown; R1 and C1 forms eliminator; power supply place can arrange resistance and carry out current limliting, and this circuit can effectively suppress external interference, and in electrostatic and pulse, performance is good.
Further, hydraulic pressure sample circuit is in order to sampled signal is become current signal, and Instantaneous high-pressure twin zener dioder absorbs the high voltage transient higher than 60V, and in effective protective circuit, other components and parts are from the damage of surge pulse; Resistance R6, for limiting the electric current of access interface microcontroller, prevents from burning out single-chip microcomputer; After connect eliminator.Power supply receives the power reference pin of single-chip microcomputer, is convenient to sampling and calibration.This circuit effectively can suppress external interference, in electrostatic and impulse train, have good behaviour.
It has design science, hydraulic pressure rotating speed detects in real time, adjust hydraulic pressure advantage more easily.
Accompanying drawing explanation
Fig. 1 is modular structure schematic diagram of the present utility model.
Fig. 2 is the circuit diagram of the utility model medium speed sample circuit.
Fig. 3 is the circuit diagram of hydraulic pressure sample circuit in the utility model.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a kind of engine water pump assembly stable water pressure module, comprise hydraulic pressure sensor module, rotating speed sampling module, engine governed speed module and CPU module, described hydraulic pressure sensor module comprises input end and connects the hydraulic pressure sensor of water pump assembly is connected described hydraulic pressure sensor output terminal hydraulic pressure sample circuit with input end, and the output terminal of described hydraulic pressure sample circuit connects the input end of CPU module; The speed probe that described rotating speed sampling module comprises input end connecting engine speed regulator is connected the rotating speed sample circuit of described speed probe with input end, the output terminal of described rotating speed sample circuit connects the input end of central processing unit (CPU); Described CPU module comprises the hydraulic pressure comparator, the base stage that are connected to hydraulic pressure sample circuit output terminal and is connected to the triode Q3 of this hydraulic pressure comparator output terminal and is connected to the relay switch of this triode Q3 emitter, and described relay switch controls the break-make of engine governed speed module.Described CPU module, by engine water pump assembly described in CANBUS model calling, carries out traditional regulation to engine water pump assembly.
Working principle: sampled signal is sent to the anode of hydraulic pressure comparator by hydraulic pressure sampling module, the negative terminal connection standard voltage of hydraulic pressure comparator, if output high level, triode Q3 conducting, relay obtains electric, and then engine governed speed module obtains electric, control the rotating speed of motor, meanwhile, rotating speed sampling module gathers the rotating speed of present engine, and show through equipment such as dial plates, for staff's speed governing provides reference.
As shown in Figure 2, described rotating speed sample circuit comprises transient voltage suppressor and the resistance R1 that one end is all connected to speed probe output terminal, one end of the other end contact resistance R2 of described resistance R1 and one end of electric capacity C1, the other end of described electric capacity C1 connects the other end of transient voltage suppressor respectively, one end of resistance R4, the positive pole of diode D2 and the emitter of triode Q1, the other end of described resistance R2, the other end of described resistance R4, the base stage of the equal connecting triode Q1 of negative pole of described diode D2, the collector electrode of described triode Q1 connects power supply respectively, one end of rotating speed sample circuit output terminal and electric capacity C2, the other end of described electric capacity C2, the equal ground connection of emitter of described triode Q1.Resistance R1, R2 and R4 in rotating speed sample circuit form bleeder circuit, and controlled conducting and the cut-off of triode Q1 by the voltage change distributing to R4, when the voltage on R4 is greater than 0.8V, triode Q1 is on state, and this circuit output end voltage is 0.6V; When the voltage on R4 is less than 0.8V, triode Q1 is in by state, and this circuit output end voltage is 5V, and the principle of this circuit utilizes the conducting of triode and cut-off that sampled signal is converted to rectangular wave by sine wave.The Instantaneous high-pressure twin zener dioder of input end is for absorbing instantaneous high pressure; avoid other component wear; resistance R1; R2 plays metering function, is that the base stage of triode Q1 is in normal range of operation, and diode D2 protects triode Q1 reverse breakdown; R1 and C1 forms eliminator; power supply place can arrange resistance and carry out current limliting, and this circuit can effectively suppress external interference, and in electrostatic and pulse, performance is good.
As shown in Figure 3, described hydraulic pressure sample circuit comprises the transient voltage suppressor, resistance R6 and the power supply that are all connected to hydraulic pressure sensor output terminal, the eliminator be made up of inductance L 2, electric capacity C3 and electric capacity C4 is connected with, the other end of described transient voltage suppressor and the equal ground connection of described eliminator between the other end of resistance R6 and output terminal.Hydraulic pressure sample circuit is in order to sampled signal is become current signal, and Instantaneous high-pressure twin zener dioder absorbs the high voltage transient higher than 60V, and in effective protective circuit, other components and parts are from the damage of surge pulse; Resistance R6, for limiting the electric current of access interface microcontroller, prevents from burning out single-chip microcomputer; After connect eliminator.Power supply receives the power reference pin of single-chip microcomputer, is convenient to sampling and calibration.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (6)
1. an engine water pump assembly stable water pressure module, it is characterized in that: it comprises hydraulic pressure sensor module, rotating speed sampling module, engine governed speed module and CPU module, the hydraulic pressure sensor that described hydraulic pressure sensor module comprises input end connecting engine water pump assembly is connected the hydraulic pressure sample circuit of described hydraulic pressure sensor output terminal with input end, the output terminal of described hydraulic pressure sample circuit connects the input end of CPU module; The speed probe that described rotating speed sampling module comprises input end connecting engine speed regulator is connected the rotating speed sample circuit of described speed probe with input end, the output terminal of described rotating speed sample circuit connects the input end of central processing unit (CPU); The input end of the output terminal connecting engine speed adjusting module of described central processing unit (CPU), the electronic speed regulator of the output terminal connecting engine of described engine governed speed module.
2. a kind of engine water pump assembly stable water pressure module according to claim 1, it is characterized in that: described CPU module comprises the hydraulic pressure comparator, the base stage that are connected to hydraulic pressure sample circuit output terminal and is connected to the triode Q3 of this hydraulic pressure comparator output terminal and is connected to the relay switch of this triode Q3 emitter, and described relay switch controls the break-make of engine governed speed module.
3. a kind of engine water pump assembly stable water pressure module according to claim 1 and 2, it is characterized in that: described rotating speed sample circuit comprises transient voltage suppressor and the resistance R1 that one end is all connected to speed probe output terminal, one end of the other end contact resistance R2 of described resistance R1 and one end of electric capacity C1, the other end of described electric capacity C1 connects the other end of transient voltage suppressor respectively, one end of resistance R4, the positive pole of diode D2 and the emitter of triode Q1, the other end of described resistance R2, the other end of described resistance R4, the base stage of the equal connecting triode Q1 of negative pole of described diode D2, the collector electrode of described triode Q1 connects power supply respectively, one end of rotating speed sample circuit output terminal and electric capacity C2, the other end of described electric capacity C2, the equal ground connection of emitter of described triode Q1.
4. a kind of engine water pump assembly stable water pressure module according to claim 1 and 2, it is characterized in that: described hydraulic pressure sample circuit comprises the transient voltage suppressor, resistance R6 and the power supply that are all connected to hydraulic pressure sensor output terminal, eliminator is connected with, the other end of described transient voltage suppressor and the equal ground connection of described eliminator between the other end of resistance R6 and output terminal.
5. a kind of engine water pump assembly stable water pressure module according to claim 3, is characterized in that: described CPU module is by engine water pump assembly described in CANBUS model calling.
6. a kind of engine water pump assembly stable water pressure module according to claim 4, is characterized in that: described CPU module is by engine water pump assembly described in CANBUS model calling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420572313.XU CN204186480U (en) | 2014-10-01 | 2014-10-01 | A kind of engine water pump assembly stable water pressure module |
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| CN201420572313.XU CN204186480U (en) | 2014-10-01 | 2014-10-01 | A kind of engine water pump assembly stable water pressure module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131282A (en) * | 2017-12-21 | 2018-06-08 | 龙岩畅丰专用汽车有限公司 | A kind of constant-pressure control device |
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2014
- 2014-10-01 CN CN201420572313.XU patent/CN204186480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131282A (en) * | 2017-12-21 | 2018-06-08 | 龙岩畅丰专用汽车有限公司 | A kind of constant-pressure control device |
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