CN116877401A - Working method of automobile four-way water pump control system - Google Patents

Working method of automobile four-way water pump control system Download PDF

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Publication number
CN116877401A
CN116877401A CN202310947235.0A CN202310947235A CN116877401A CN 116877401 A CN116877401 A CN 116877401A CN 202310947235 A CN202310947235 A CN 202310947235A CN 116877401 A CN116877401 A CN 116877401A
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CN
China
Prior art keywords
resistor
proportional valve
way proportional
controller
capacitor
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Pending
Application number
CN202310947235.0A
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Chinese (zh)
Inventor
张曦
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Chongqing Wanli Lianxing Industrial Group Co ltd
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Chongqing Wanli Lianxing Industrial Group Co ltd
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Application filed by Chongqing Wanli Lianxing Industrial Group Co ltd filed Critical Chongqing Wanli Lianxing Industrial Group Co ltd
Priority to CN202310947235.0A priority Critical patent/CN116877401A/en
Publication of CN116877401A publication Critical patent/CN116877401A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)

Abstract

The application provides an automobile four-way water pump controller which comprises a box body, a PCB (printed circuit board) fixed mounting seat, a temperature module, a motor driving module, a four-way proportional valve module and a data communication module, wherein the PCB fixed mounting seat is arranged in the box body and used for fixedly mounting a PCB. The application can integrate the four-way water pump controller of the automobile and realize constant temperature regulation output.

Description

Working method of automobile four-way water pump control system
The application relates to a divisional application of an automobile four-way water pump controller, which is applied for the application number 2022107339374, the application date 2022, the year 06 and the month 27.
Technical Field
The application relates to the technical field of automobile electronics, in particular to a working method of an automobile four-way water pump control system.
Background
In recent years, haze afflicts a plurality of cities in China, and automobile exhaust as a strong force in haze is naturally subjected to penmanship of the whole society. Since new energy automobiles can effectively solve such problems, they are beginning to receive a great deal of attention from society.
Disclosure of Invention
The invention aims at least solving the technical problems in the prior art, and particularly creatively provides an automobile four-way water pump controller. The beneficial effects are as follows: the controller integration is realized, the pipeline connection is reduced, the assembly process is reduced, the space arrangement is easier, and the wire harness plug-in is reduced; constant temperature output can be realized through proportional mixing; can realize the control of water diversion.
In order to achieve the above object of the present invention, the present invention provides a four-way water pump controller for an automobile, comprising a box body, a PCB circuit board fixing mount for fixing a PCB circuit board disposed in the box body, the PCB circuit board being fixedly mounted on the PCB circuit board fixing mount, a controller module, a temperature module, a motor driving module, a four-way proportional valve module and a data communication module disposed on the PCB circuit board;
the temperature sensing signal end of the controller module is connected with the temperature sensing signal end of the temperature module, the driving end of the controller module is connected with the driving end of the motor driving module, the control end of the controller module is connected with the control end of the four-way proportional valve module, and the data transmission end of the controller module is connected with the data transmission end of the data communication module.
In a preferred embodiment of the present invention, the power module further comprises a power module disposed on the PCB circuit board, the power module comprising: the power capacitor end CP of the controller U3 is connected with the first end of the capacitor C8, the second end of the capacitor C8 is connected with the cathode of the diode D2 and the anode of the diode D5, the anode of the diode D2 is connected with the first end of the inductor L1, the first end of the resistor R7, the first end of the capacitor C10 and the drain electrode D of the field effect tube Q3, the second end of the inductor L1 is connected with the first end of the capacitor C3, the first end of the capacitor C4 and the first end of the capacitor C1, the second end of the inductor L1 outputs a power supply VS12V, the second end of the capacitor C3 is connected with the second end of the capacitor C4, the second end of the capacitor C1 is connected with the power ground GND, the cathode of the diode D5 is connected with the second end of the capacitor C10 and the power capacitor end VCP of the controller U3, the gate G of the field effect tube Q3,The second end of the resistor R7, the first end of the resistor R8 and the drain electrode D of the field effect tube Q2 are connected, the source electrode S of the field effect tube Q3 is connected with the interface 2 of the power interface VSUP1, the interface 1 of the power interface VSUP1 and the first end of the transient suppression diode D3, the interface 1 of the power interface VSUP1 outputs the power supply VSUP, the second end of the transient suppression diode D3 is connected with the interface 2 of the power ground interface GND1, the interface 1 of the power ground interface GND1, the second end of the power ground GND and the resistor R8, the source electrode S of the field effect tube Q2 is connected with the power ground GND, the gate electrode G of the field effect tube Q2 is connected with the first end of the resistor R11, and the second end of the resistor R11 is connected with the power supply control end PE0 of the controller U3. The positive end of a 12V power supply is connected with an interface 1 of a power supply interface VSUP1 or/and an interface 2 of the power supply interface VSUP1, the ground end of the 12V power supply is connected with the interface 1 of a power supply ground interface GND1 or/and the interface 2 of the power supply ground interface GND1, the 12V power supply is output by a second end of the inductor L1 through a body diode (parasitic diode) of the field effect tube Q2 and then through the inductor L1, meanwhile, the power supply voltage output by the body diode of the field effect tube Q2 is connected with the ground end of the 12V power supply through a resistor R3 and a resistor R4, and the voltage U obtained by dividing the grid electrode of the field effect tube Q2 0 The field effect transistor Q2 is turned on,U 0 representing the gate G voltage value, V of the field effect transistor Q2 0 Representing the voltage value of the 12V power supply output, +.>Representing the turn-on voltage value, R, of the body diode of field effect transistor Q2 3 Represents the resistance value of the resistor R3, R 4 The resistance value of the resistor R4; when the control end PE1 of the controller U2 sends a conduction level to the grid electrode G of the field effect tube Q8, the field effect tube Q8 is in a conduction state, the grid electrode G voltage of the field effect tube Q2 is pulled down, the field effect tube Q2 is in a cut-off state, and a 12V power supply is output through a body diode of the field effect tube Q2; when the control end PE1 of the controller U2 sends a cut-off level to the gate G of the field effect tube Q8, the field effect tube Q8 is in a cut-off state, the power supply voltage output by the body diode of the field effect tube Q2 is connected with the ground end of the 12V power supply through the resistor R3 and the resistor R4, and the voltage U obtained by dividing the gate of the field effect tube Q2 0 So that the field effect tube Q2 is conducted and the field effect tubeThe Q2 output power supply charges the capacitor C4; the transient suppression diode D2 is used for preventing the surge protection circuit from being damaged.
In a preferred embodiment of the present invention, the temperature module includes a first temperature module, a second temperature module, a third temperature module, a fourth temperature module, and a fifth temperature module;
the first temperature module includes: the temperature sensing signal end AN0_3 of the controller U2 is connected with the first end of a resistor R7, the second end of the resistor R7 and the first end of a resistor R9 are connected with the first end of a thermistor RT1, the second end of the resistor R9 is connected with a power ground GND, the second end of the thermistor RT1 is connected with the first end of AN inductor L2 and the negative electrode of a diode D11, the first end of the inductor L2 outputs a power supply VI_3V, the second end of the inductor L2 is connected with the first end of a capacitor C19 and a power supply +3.3V, and the positive electrode of the diode D11 and the second end of the capacitor C19 are connected with the power ground GND;
The second temperature module includes: the first end of the thermistor RT2 is connected with a power supply VI_3V, the second end of the thermistor RT2 is connected with the first end of a resistor R10 and the first end of a resistor R11, the second end of the resistor R10 is connected with a temperature sensing signal end AN 0-4 of the controller U2, and the second end of the resistor R11 is connected with a power supply ground GND;
the third temperature module includes: the first end of the thermistor RT3 is connected with a power supply VI_3V, the second end of the thermistor RT3 is connected with the first end of a resistor R12 and the first end of a resistor R14, the second end of the resistor R14 is connected with a power supply ground GND, and the second end of the resistor R12 is connected with a temperature sensing signal end AN1_3 of a controller U2;
the fourth temperature module includes: the first end of the thermistor RT4 is connected with a power supply VI_3V, the second end of the thermistor RT4 is connected with the first end of a resistor R16 and the first end of a resistor R17, the second end of the resistor R17 is connected with a power supply ground GND, and the second end of the resistor R16 is connected with a temperature sensing signal end PT2 of a controller U2;
the fifth temperature module includes: the first end of the thermistor RT5 is connected with the power supply VI_3V, the second end of the thermistor RT5 is connected with the first end of the resistor R18 and the first end of the resistor R20, the second end of the resistor R20 is connected with the power supply ground GND, and the second end of the resistor R18 is connected with the temperature sensing signal end PT3 of the controller U2. The thermistor RT1 is arranged at the first inlet end of the first three-way proportional valve and is used for detecting the temperature value of the first cold and heat source; the thermistor RT2 is arranged at the second inlet end of the first three-way proportional valve and is used for detecting the temperature value of the second cold and heat source; the thermistor RT3 is arranged at the outlet end of the first three-way proportional valve, the thermistor RT3 can be arranged at the first inlet end of the second three-way proportional valve, the thermistor RT3 can be arranged at the inlet end of the water pump, and the thermistor RT3 can be arranged at the outlet end of the water pump and used for detecting the temperature value after the first cold and heat source and the second cold and heat source are mixed; the thermistor RT4 is arranged at the second inlet end of the second three-way proportional valve and is used for detecting the temperature value of the third cold and heat source; and the thermistor RT5 is arranged at the outlet end of the second three-way proportional valve and is used for detecting the temperature value of the output fluid.
In a preferred embodiment of the present invention, the four-way proportional valve module includes: the input end IN1 of the proportional valve U4 is connected with the output end PAD3 of the controller U3, the input end IN2 of the proportional valve U4 is connected with the output end PAD4 of the controller U3, the analog end VREF of the proportional valve U4 is connected with the first end of the capacitor C18 and the first end of the resistor R33, the second end of the capacitor C18 is connected with the power ground GND, the second end of the resistor R33 is connected with the control end PT1 of the controller U3, the power ground GND of the proportional valve U4 is connected with the power ground GND, the power supply end VBB of the proportional valve U4 is connected with the power supply VIN, the detection resistor end LSS of the proportional valve U4 is connected with the first end of the resistor R28, the second end of the resistor R28 is connected with the power ground GND, the output end OUT1 of the proportional valve U4 is connected with the interface 1 of the connector P1, and the output end OUT2 of the proportional valve U4 is connected with the interface 2 of the connector P1;
the input end IN1 of the proportional valve U5 is connected with the output end PAD8 of the controller U3, the input end IN2 of the proportional valve U5 is connected with the output end LD0 of the controller U3, the analog end VREF of the proportional valve U5 is connected with the first end of the capacitor C19 and the first end of the resistor R34, the second end of the capacitor C19 is connected with the power ground GND, the second end of the resistor R34 is connected with the control end PT2 of the controller U3, the power ground end GND of the proportional valve U5 is connected with the power ground GND, the power supply end VBB of the proportional valve U5 is connected with the power supply VIN, the detection resistor end LSS of the proportional valve U5 is connected with the first end of the resistor R30, the second end of the resistor R30 is connected with the power ground GND, the output end OUT1 of the proportional valve U5 is connected with the interface 3 of the connector P1, and the output end OUT2 of the proportional valve U5 is connected with the interface 4 of the connector P1;
The input end IN1 of the proportional valve U6 is connected with the output end PS0 of the controller U3, the input end IN2 of the proportional valve U6 is connected with the output end PS1 of the controller U3, the analog end VREF of the proportional valve U6 is connected with the first end of the capacitor C26 and the first end of the resistor R48, the second end of the capacitor C26 is connected with the power ground, the second end of the resistor R48 is connected with the control end PT3 of the controller U3, the power ground end GND of the proportional valve U6 is connected with the power ground GND, the power supply end VBB of the proportional valve U6 is connected with the power supply VIN, the detection resistor end LSS of the proportional valve U6 is connected with the first end of the resistor R37, the second end of the resistor R37 is connected with the power ground GND, the output end OUT1 of the proportional valve U6 is connected with the interface 1 of the connector P2, and the output end OUT2 of the proportional valve U6 is connected with the interface 2 of the connector P2;
the input IN1 of the proportional valve U7 is connected with the output PS2 of the controller U3, the input IN2 of the proportional valve U7 is connected with the output PS3 of the controller U3, the analog VREF of the proportional valve U7 is connected with the first end of the capacitor C27 and the first end of the resistor R53, the second end of the capacitor C27 is connected with the power ground GND, the second end of the resistor R53 is connected with the control PP1 of the controller U3, the power ground GND of the proportional valve U7 is connected with the power ground GND, the power supply VBB of the proportional valve U7 is connected with the power supply VIN, the detection resistor LSS of the proportional valve U7 is connected with the first end of the resistor R40, the second end of the resistor R40 is connected with the power ground GND, the output OUT1 of the proportional valve U7 is connected with the interface 3 of the connector P2, and the output OUT2 of the proportional valve U7 is connected with the interface 4 of the connector P2. The connector P1 is connected with a valve opening control end on the first three-way proportional valve, the connector P2 is connected with a valve opening control end on the second three-way proportional valve, and the controller U3 respectively sends opening control signals to the first three-way proportional valve and the second three-way proportional valve through the proportional valve U4, the proportional valve U5, the proportional valve U6 and the proportional valve U7 (the proportional valve U4, the proportional valve U5, the proportional valve U6 and the proportional valve U7 are all proportional valve driving chips) so that opening of an inlet channel and an outlet channel on the first three-way proportional valve and the second three-way proportional valve reach control values.
In a preferred embodiment of the present invention, the LED display module further comprises an LED display module disposed on the PCB circuit board, the LED display module comprising: the display end PP0 of the controller U3 is connected with the first end of a resistor R54, the second end of the resistor R54 is connected with the positive electrode of a light emitting diode LED1, and the negative electrode of the light emitting diode LED1 is connected with a power ground GND; when the light emitting diode LED1 is turned on to emit red light, it indicates that the controller U3 is malfunctioning, and the controller U3 needs to be restarted.
Or/and further comprises a software update module arranged on the PCB, wherein the software update module comprises: the data terminal LD2 of the controller U3 is connected to the data terminal 5 of the update interface H1, the data terminal LD1 of the controller U3 is connected to the data terminal 3 of the update interface H1, the debug terminal BKGD of the controller U3 is connected to the debug terminal 1 of the update interface H1, the power terminal 6 of the update interface H1 is connected to the power supply VDDX, the RESET terminal 4 of the update interface H1 is connected to the first terminal of the resistor R60, the first terminal of the capacitor C30 and the RESET terminal RESET of the controller U3, the second terminal of the resistor R60 is connected to the power supply VDDX, and the power supply ground terminal 2 of the update interface H1 is connected to the power supply ground GND and the second terminal of the capacitor C30. The data line is connected with the update interface H1, so that the system of the controller U3 can be updated.
In a preferred embodiment of the present invention, the motor driving module includes: the driving end HG0 of the controller U3 is connected with the first end of the resistor R5 and the cathode of the diode D4, the second end of the resistor R5 is connected with the grid G of the field effect tube Q1 and the first end of the resistor R6, the second end of the resistor R6 is connected with the anode of the diode D4, the drain D of the field effect tube Q1 is connected with the power supply VS12V, the source S of the field effect tube Q1 is connected with the drain D of the field effect tube Q4, the first end of the resistor R13 and the first end of the driving motor interface, the driving end LG0 of the controller U3 is connected with the cathode of the diode D6 and the first end of the resistor R9, the second end of the resistor R9 is connected with the grid G of the field effect tube Q4 and the first end of the resistor R10, the second end of the resistor R10 is connected with the anode of the diode D6, the source S of the field effect tube Q4 is connected with the loop ground LS0 of the controller U3 and the first end of the resistor PR1, and the second end of the resistor PR1 is connected with the power supply ground;
the power capacitor end HS0 of the controller U3 is connected with the first end of the capacitor C11, the second end of the resistor R13 and the first end of the capacitor C12, the second end of the capacitor C11 is connected with the cathode of the diode D7 and the power capacitor end VBS0 of the controller U3, the anode of the diode D7 is connected with the first end of the capacitor C13 and the power capacitor end VLS0 of the controller U3, and the second end of the capacitor C13 is connected with the second end of the capacitor C12 and the power ground GND;
The driving end HG1 of the controller U3 is connected with the first end of a resistor R19 and the cathode of a diode D8, the anode of the diode D8 is connected with the first end of a resistor R21, the second end of the resistor R21 is connected with the second end of the resistor R19 and the grid G of a field effect tube Q5, the drain D of the field effect tube Q5 is connected with a power supply VS12V, the source S of the field effect tube Q5 is connected with the drain D of the field effect tube Q6, the first end of a resistor R29 and the second end of a driving motor interface, the grid G of the field effect tube Q6 is connected with the first end of a resistor R25 and the first end of a resistor R27, the second end of the resistor R25 is connected with the driving end LG1 of the controller U3 and the cathode of a diode D9, the second end of the resistor R27 is connected with the anode of the diode D9, the source S of the field effect tube Q6 is connected with the loop ground LS1 of the controller U3 and the first end of a resistor PR2, and the second end of the resistor PR2 is connected with the power supply ground;
the power capacitor end HS1 of the controller U3 is connected with the first end of the capacitor C15, the first end of the capacitor C16 and the second end of the resistor R29, the second end of the capacitor C15 is connected with the cathode of the diode D10 and the power capacitor end VBS1 of the controller U3, the anode of the diode D10 is connected with the first end of the capacitor C17 and the power capacitor end VLS1 of the controller U3, and the second end of the capacitor C17 is connected with the second end of the capacitor C16 and the power ground GND;
The driving end HG2 of the controller U3 is connected with the cathode of the diode D11 and the first end of the resistor R31, the second end of the resistor R31 is connected with the first end of the resistor R32 and the grid G of the field effect tube Q7, the anode of the diode D11 is connected with the second end of the resistor R32, the drain D of the field effect tube Q7 is connected with the power supply VS12V, the source S of the field effect tube Q7 is connected with the drain D of the field effect tube Q8, the first end of the resistor R39 and the third end of the motor driving interface, the grid G of the field effect tube Q8 is connected with the first end of the resistor R35 and the first end of the resistor R36, the second end of the resistor R35 is connected with the control end LG2 of the controller U3 and the cathode of the diode D13, the anode of the diode D13 is connected with the second end of the resistor R36, the source S of the field effect tube Q8 is connected with the first end of the resistor R38 and the loop ground LS2 of the controller U3, and the second end of the resistor R38 is connected with the power supply ground GND;
the power capacitor terminal HS2 of the controller U3 is connected to the first terminal of the capacitor C21, the second terminal of the resistor R39 and the first terminal of the capacitor C22, the second terminal of the capacitor C21 is connected to the power capacitor terminal VBS2 of the controller U3 and the negative terminal of the diode D14, the positive terminal of the diode D14 is connected to the first terminal of the capacitor C23 and the power capacitor terminal VLS2 of the controller U3, and the second terminal of the capacitor C23 is connected to the second terminal of the capacitor C22 and the power ground GND. The power end of the three-phase stepping motor on the water pump is connected with the driving motor interface, and an alternate level signal is sent to the water pump through the controller U3, so that the water pump works.
In a preferred embodiment of the present invention, the motor sampling module further comprises a motor sampling module disposed on the PCB circuit board, the motor sampling module comprising: the first end of the resistor R43 is connected with the first end of the resistor PR1, the second end of the resistor R43 is connected with the first end of the resistor R44 and the first end of the capacitor C25, the second end of the resistor R44 is connected with the first end of the resistor R45 and the sampling input positive end PAD2 of the controller U3, the second end of the resistor R45 is connected with the power supply 2V5_REF, the first end of the resistor R50 is connected with the second end of the resistor PR1, the second end of the resistor R50 is connected with the second end of the capacitor C25 and the first end of the resistor R51, the second end of the resistor R51 is connected with the sampling input negative end PAD1 of the controller U3 and the first end of the resistor R52, the second end of the resistor R52 is connected with the sampling voltage end PAD0 of the controller U3 and the first end of the capacitor C14, and the second end of the capacitor C14 is connected with the power supply ground;
the first end of the resistor R57 is connected to the first end of the resistor PR2, the second end of the resistor R57 is connected to the first end of the capacitor C29 and the first end of the resistor R58, the second end of the resistor R58 is connected to the first end of the resistor R59 and the sampling input positive terminal PAD7 of the controller U3, the second end of the resistor R59 is connected to the power supply 2v5_ref, the first end of the resistor R63 is connected to the second end of the resistor PR2, the second end of the resistor R63 is connected to the second end of the capacitor C29 and the first end of the resistor R64, the second end of the resistor R64 is connected to the first end of the resistor R65 and the sampling input negative terminal PA6 of the controller U3, the second end of the resistor R65 is connected to the first end of the capacitor C9 and the sampling voltage terminal PAD5 of the controller U3, and the second end of the capacitor C9 is connected to the power supply ground. And the motor sampling module is used for collecting current/voltage signals when the motor runs and judging whether the motor works normally.
In a preferred embodiment of the present invention, the data communication module includes a data communication first module or/and a data communication second module;
the data communication first module includes: the data communication terminal PE1 of the controller U3 is connected to the first terminal of the resistor R47, the first terminal of the resistor R41 and the first terminal of the resistor R42, the second terminal of the resistor R42 is connected to the cathode of the diode D15, the anode of the diode D15 is connected to the power supply VSUP, the second terminal of the resistor R41 is connected to the power supply ground GND, the first terminal of the transient suppression diode D16 and the first terminal of the capacitor C24, the second terminal of the transient suppression diode D16 is connected to the first terminal of the resistor R46, the second terminal of the capacitor C24 and the second terminal of the resistor R47, and the second terminal of the resistor R46 is connected to the interface 1 of the communication connector PWM 1;
the data communication terminal PT0 of the controller U3 is connected with the first terminal of a resistor R61, the second terminal of the resistor R61 is connected with the first terminal of a resistor R62 and the grid G of a field effect tube Q9, the drain D of the field effect tube Q9 is connected with the first terminal of a resistor R55 and the first terminal of a resistor R56, the second terminal of the resistor R55 is connected with the cathode of a diode D17, the anode of the diode D17 is connected with a power supply VSUP, the second terminal of the resistor R56 is connected with the first terminal of a capacitor C28, the first terminal of a transient suppression diode D18 and the first terminal of a resistor R49, the second terminal of the resistor R49 is connected with the interface 2 of a communication connector FG1, and the second terminal of the resistor R62 is connected with the source of the field effect tube Q9, the second terminal of a capacitor C28, the second terminal of the transient suppression diode D18 and the power supply GND;
The data communication second module includes: the data end D of the CAN driver U1 is connected with the data end CANH0 of the controller U3, the data end R of the CAN driver U1 is connected with the data end CANL0 of the controller U3, the power supply end VCC of the CAN driver U1 is connected with the power supply VI_3V, the power supply ground end GND of the CAN driver U1 is connected with the first end of the power supply ground GND and the first end of the capacitor C7, the second end of the capacitor C7 is connected with the reference voltage end Vref of the CAN driver U1, the low-level CAN voltage input/output end CANL of the CAN driver U1 is connected with the first end of the conjugated inductor L2, the high-level CAN voltage input/output end CANH of the CAN driver U1 is connected with the second end of the conjugated inductor L2, the slope resistor end Rs of the CAN driver U1 is connected with the first end of the resistor R2, the second end Rs of the resistor R2 is connected with the power supply ground GND, the third end of the inductor L2 is connected with the first end of the capacitor C2, the first end of the capacitor C5, the first end of the terminal resistor R3 is connected with the first end of the transient suppression diode D4 and the first end of the capacitor C1, the second end of the capacitor C1 is connected with the second end of the transient suppression diode 3 is connected with the second end of the capacitor C1, and the second end of the transient suppression diode is connected with the second end of the capacitor C1. By selecting the data transmission mode to be connected: CAN bus communication and PWM communication, link to each other data communication line with corresponding communication connector PWM1 and communication connector FG1, realize data interaction.
The invention also discloses an automobile four-way water pump control system, which comprises a water pump, a pair of three-way proportional valves, a first three-way proportional valve, a second three-way proportional valve and an automobile four-way water pump controller as set forth in one of claims 1-8;
the control end of the second three-way proportional valve is connected with the second control end of the automobile four-way water pump controller;
the first inlet end of the first three-way proportional valve is connected with a first cold and heat source, the second inlet end of the first three-way proportional valve is connected with a second cold and heat source, the outlet end of the first three-way proportional valve is connected with the inlet end of the water pump, the outlet end of the water pump is connected with the first inlet end of the second three-way proportional valve, the second inlet end of the second three-way proportional valve is connected with a third cold and heat source, and the outlet end of the second three-way proportional valve is connected with a conveying pipeline. And the opening degree of the first three-way proportional valve and the opening degree of the second three-way proportional valve are controlled according to the temperature value acquired by the temperature module, so that the temperature of the fluid is regulated.
The invention also discloses a working method of the automobile four-way water pump control system, which comprises the following steps:
S-1, initializing a system;
s-2, a controller U3 acquires a temperature value acquired by a temperature module; the method comprises the steps of carrying out a first treatment on the surface of the
S-3, the controller U3 adjusts the temperature value of the output fluid according to the acquired temperature value; the method specifically comprises the following steps:
s-31, obtaining the temperature of the liquid to be output;
s-32, adjusting the opening degree of a first inlet end of the first three-way proportional valve and a second inlet end of the first three-way proportional valve;
s-34, adjusting the opening degree of the first inlet end of the second three-way proportional valve and the opening degree of the second inlet end of the second three-way proportional valve;
s-35, judging the temperature and phi detected by the outlet end of the second three-way proportional valve 0 Size relationship between:
if phi 5 -φ 0 If phi is less than or equal to phi, maintaining the opening degree of the first inlet end of the first three-way proportional valve, the second inlet end of the first three-way proportional valve, the first inlet end of the second three-way proportional valve and the second inlet end of the second three-way proportional valve;
if phi 5 -φ 0 And (2) increasing the opening of the second inlet end of the second three-way proportional valve, or increasing the opening of the second inlet end of the first three-way proportional valve, or decreasing the opening of the first inlet end of the first three-way proportional valve, and returning to the step S-32.
In summary, by adopting the technical scheme, the four-way water pump controller for the automobile can be integrated, and constant-temperature regulation output is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic block diagram of the connection of the present invention.
Fig. 2 is a schematic diagram of the circuit connection of the present invention.
Fig. 3 is a schematic flow chart of a water pump control task a according to the present invention.
Fig. 4 is a schematic flow diagram of task C of the proportional valve of the present invention.
Fig. 5 is a schematic flow diagram of a proportional valve task a of the present invention.
FIG. 6 is a schematic diagram of a proportional valve temperature input flow scheme of the present invention.
FIG. 7 is a schematic diagram of a proportional valve position input flow scheme of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The invention provides an automobile four-way water pump controller, which comprises a box body, a PCB circuit board fixed mounting seat, a temperature module, a motor driving module, a four-way proportional valve module and a data communication module, wherein the PCB circuit board fixed mounting seat is arranged in the box body and used for fixedly mounting a PCB circuit board;
The temperature sensing signal end of the controller module is connected with the temperature sensing signal end of the temperature module, the driving end of the controller module is connected with the driving end of the motor driving module, the control end of the controller module is connected with the control end of the four-way proportional valve module, and the data transmission end of the controller module is connected with the data transmission end of the data communication module.
In a preferred embodiment of the present invention, the power module further comprises a power module disposed on the PCB circuit board, the power module comprising: the power capacitor end CP of the controller U3 is connected with the first end of the capacitor C8, the second end of the capacitor C8 is connected with the cathode of the diode D2 and the anode of the diode D5, the anode of the diode D2 is connected with the first end of the inductor L1, the first end of the resistor R7, the first end of the capacitor C10 and the drain electrode D of the field effect tube Q3, the second end of the inductor L1 is connected with the first end of the capacitor C3, the first end of the capacitor C4 and the first end of the capacitor C1, the second end of the inductor L1 outputs a power supply VS12V, the second end of the capacitor C3 is connected with the second end of the capacitor C4, the second end of the capacitor C1 and the power supply ground GND, the cathode of the diode D5 is connected with the second end of the capacitor C10 and the power capacitor end VCP of the controller U3, the grid G of the field effect tube Q3, the second end of the resistor R7, the first end of the resistor R8 and the drain D of the field effect tube Q2 are connected, the source S of the field effect tube Q3 is connected with the interface 2 of the power interface VSUP1, the interface 1 of the power interface VSUP1 and the first end of the transient suppression diode D3, the interface 1 of the power interface VSUP1 outputs the power supply VSUP, the second end of the transient suppression diode D3 is connected with the interface 2 of the power ground interface GND1, the interface 1 of the power ground interface GND1, the power ground GND and the second end of the resistor R8, the source S of the field effect tube Q2 is connected with the power ground GND, the grid G of the field effect tube Q2 is connected with the first end of the resistor R11, and the second end of the resistor R11 is connected with the power control end PE0 of the controller U3.
In a preferred embodiment of the present invention, the temperature module includes a first temperature module, a second temperature module, a third temperature module, a fourth temperature module, and a fifth temperature module;
the first temperature module includes: as shown in fig. 2, the temperature sensing signal terminal an0_3 of the controller U2 is connected to the first end of the resistor R7, the second end of the resistor R7 and the first end of the resistor R9 are connected to the first end of the thermistor RT1, the second end of the resistor R9 is connected to the power ground GND, the second end of the thermistor RT1 is connected to the first end of the inductor L2 and the negative electrode of the diode D11, the first end of the inductor L2 outputs the power supply vi_3v, the second end of the inductor L2 is connected to the first end of the capacitor C19 and the power supply +3.3v, and the positive electrode of the diode D11 and the second end of the capacitor C19 are connected to the power ground GND;
the second temperature module includes: the first end of the thermistor RT2 is connected with a power supply VI_3V, the second end of the thermistor RT2 is connected with the first end of a resistor R10 and the first end of a resistor R11, the second end of the resistor R10 is connected with a temperature sensing signal end AN 0-4 of the controller U2, and the second end of the resistor R11 is connected with a power supply ground GND;
the third temperature module includes: the first end of the thermistor RT3 is connected with a power supply VI_3V, the second end of the thermistor RT3 is connected with the first end of a resistor R12 and the first end of a resistor R14, the second end of the resistor R14 is connected with a power supply ground GND, and the second end of the resistor R12 is connected with a temperature sensing signal end AN1_3 of a controller U2;
The fourth temperature module includes: the first end of the thermistor RT4 is connected with a power supply VI_3V, the second end of the thermistor RT4 is connected with the first end of a resistor R16 and the first end of a resistor R17, the second end of the resistor R17 is connected with a power supply ground GND, and the second end of the resistor R16 is connected with a temperature sensing signal end PT2 of a controller U2;
the fifth temperature module includes: the first end of the thermistor RT5 is connected with the power supply VI_3V, the second end of the thermistor RT5 is connected with the first end of the resistor R18 and the first end of the resistor R20, the second end of the resistor R20 is connected with the power supply ground GND, and the second end of the resistor R18 is connected with the temperature sensing signal end PT3 of the controller U2.
In a preferred embodiment of the present invention, the four-way proportional valve module includes: the input end IN1 of the proportional valve U4 is connected with the output end PAD3 of the controller U3, the input end IN2 of the proportional valve U4 is connected with the output end PAD4 of the controller U3, the analog end VREF of the proportional valve U4 is connected with the first end of the capacitor C18 and the first end of the resistor R33, the second end of the capacitor C18 is connected with the power ground GND, the second end of the resistor R33 is connected with the control end PT1 of the controller U3, the power ground GND of the proportional valve U4 is connected with the power ground GND, the power supply end VBB of the proportional valve U4 is connected with the power supply VIN, the detection resistor end LSS of the proportional valve U4 is connected with the first end of the resistor R28, the second end of the resistor R28 is connected with the power ground GND, the output end OUT1 of the proportional valve U4 is connected with the interface 1 of the connector P1, and the output end OUT2 of the proportional valve U4 is connected with the interface 2 of the connector P1;
The input end IN1 of the proportional valve U5 is connected with the output end PAD8 of the controller U3, the input end IN2 of the proportional valve U5 is connected with the output end LD0 of the controller U3, the analog end VREF of the proportional valve U5 is connected with the first end of the capacitor C19 and the first end of the resistor R34, the second end of the capacitor C19 is connected with the power ground GND, the second end of the resistor R34 is connected with the control end PT2 of the controller U3, the power ground end GND of the proportional valve U5 is connected with the power ground GND, the power supply end VBB of the proportional valve U5 is connected with the power supply VIN, the detection resistor end LSS of the proportional valve U5 is connected with the first end of the resistor R30, the second end of the resistor R30 is connected with the power ground GND, the output end OUT1 of the proportional valve U5 is connected with the interface 3 of the connector P1, and the output end OUT2 of the proportional valve U5 is connected with the interface 4 of the connector P1;
the input end IN1 of the proportional valve U6 is connected with the output end PS0 of the controller U3, the input end IN2 of the proportional valve U6 is connected with the output end PS1 of the controller U3, the analog end VREF of the proportional valve U6 is connected with the first end of the capacitor C26 and the first end of the resistor R48, the second end of the capacitor C26 is connected with the power ground, the second end of the resistor R48 is connected with the control end PT3 of the controller U3, the power ground end GND of the proportional valve U6 is connected with the power ground GND, the power supply end VBB of the proportional valve U6 is connected with the power supply VIN, the detection resistor end LSS of the proportional valve U6 is connected with the first end of the resistor R37, the second end of the resistor R37 is connected with the power ground GND, the output end OUT1 of the proportional valve U6 is connected with the interface 1 of the connector P2, and the output end OUT2 of the proportional valve U6 is connected with the interface 2 of the connector P2;
The input IN1 of the proportional valve U7 is connected with the output PS2 of the controller U3, the input IN2 of the proportional valve U7 is connected with the output PS3 of the controller U3, the analog VREF of the proportional valve U7 is connected with the first end of the capacitor C27 and the first end of the resistor R53, the second end of the capacitor C27 is connected with the power ground GND, the second end of the resistor R53 is connected with the control PP1 of the controller U3, the power ground GND of the proportional valve U7 is connected with the power ground GND, the power supply VBB of the proportional valve U7 is connected with the power supply VIN, the detection resistor LSS of the proportional valve U7 is connected with the first end of the resistor R40, the second end of the resistor R40 is connected with the power ground GND, the output OUT1 of the proportional valve U7 is connected with the interface 3 of the connector P2, and the output OUT2 of the proportional valve U7 is connected with the interface 4 of the connector P2.
In a preferred embodiment of the present invention, the LED display module further comprises an LED display module disposed on the PCB circuit board, the LED display module comprising: the display end PP0 of the controller U3 is connected with the first end of a resistor R54, the second end of the resistor R54 is connected with the positive electrode of a light emitting diode LED1, and the negative electrode of the light emitting diode LED1 is connected with a power ground GND;
or/and further comprises a software update module arranged on the PCB, wherein the software update module comprises: the data terminal LD2 of the controller U3 is connected to the data terminal 5 of the update interface H1, the data terminal LD1 of the controller U3 is connected to the data terminal 3 of the update interface H1, the debug terminal BKGD of the controller U3 is connected to the debug terminal 1 of the update interface H1, the power terminal 6 of the update interface H1 is connected to the power supply VDDX, the RESET terminal 4 of the update interface H1 is connected to the first terminal of the resistor R60, the first terminal of the capacitor C30 and the RESET terminal RESET of the controller U3, the second terminal of the resistor R60 is connected to the power supply VDDX, and the power supply ground terminal 2 of the update interface H1 is connected to the power supply ground GND and the second terminal of the capacitor C30.
In a preferred embodiment of the present invention, the motor driving module includes: the driving end HG0 of the controller U3 is connected with the first end of the resistor R5 and the cathode of the diode D4, the second end of the resistor R5 is connected with the grid G of the field effect tube Q1 and the first end of the resistor R6, the second end of the resistor R6 is connected with the anode of the diode D4, the drain D of the field effect tube Q1 is connected with the power supply VS12V, the source S of the field effect tube Q1 is connected with the drain D of the field effect tube Q4, the first end of the resistor R13 and the first end of the driving motor interface, the driving end LG0 of the controller U3 is connected with the cathode of the diode D6 and the first end of the resistor R9, the second end of the resistor R9 is connected with the grid G of the field effect tube Q4 and the first end of the resistor R10, the second end of the resistor R10 is connected with the anode of the diode D6, the source S of the field effect tube Q4 is connected with the loop ground LS0 of the controller U3 and the first end of the resistor PR1, and the second end of the resistor PR1 is connected with the power supply ground;
the power capacitor end HS0 of the controller U3 is connected with the first end of the capacitor C11, the second end of the resistor R13 and the first end of the capacitor C12, the second end of the capacitor C11 is connected with the cathode of the diode D7 and the power capacitor end VBS0 of the controller U3, the anode of the diode D7 is connected with the first end of the capacitor C13 and the power capacitor end VLS0 of the controller U3, and the second end of the capacitor C13 is connected with the second end of the capacitor C12 and the power ground GND;
The driving end HG1 of the controller U3 is connected with the first end of a resistor R19 and the cathode of a diode D8, the anode of the diode D8 is connected with the first end of a resistor R21, the second end of the resistor R21 is connected with the second end of the resistor R19 and the grid G of a field effect tube Q5, the drain D of the field effect tube Q5 is connected with a power supply VS12V, the source S of the field effect tube Q5 is connected with the drain D of the field effect tube Q6, the first end of a resistor R29 and the second end of a driving motor interface, the grid G of the field effect tube Q6 is connected with the first end of a resistor R25 and the first end of a resistor R27, the second end of the resistor R25 is connected with the driving end LG1 of the controller U3 and the cathode of a diode D9, the second end of the resistor R27 is connected with the anode of the diode D9, the source S of the field effect tube Q6 is connected with the loop ground LS1 of the controller U3 and the first end of a resistor PR2, and the second end of the resistor PR2 is connected with the power supply ground;
the power capacitor end HS1 of the controller U3 is connected with the first end of the capacitor C15, the first end of the capacitor C16 and the second end of the resistor R29, the second end of the capacitor C15 is connected with the cathode of the diode D10 and the power capacitor end VBS1 of the controller U3, the anode of the diode D10 is connected with the first end of the capacitor C17 and the power capacitor end VLS1 of the controller U3, and the second end of the capacitor C17 is connected with the second end of the capacitor C16 and the power ground GND;
The driving end HG2 of the controller U3 is connected with the cathode of the diode D11 and the first end of the resistor R31, the second end of the resistor R31 is connected with the first end of the resistor R32 and the grid G of the field effect tube Q7, the anode of the diode D11 is connected with the second end of the resistor R32, the drain D of the field effect tube Q7 is connected with the power supply VS12V, the source S of the field effect tube Q7 is connected with the drain D of the field effect tube Q8, the first end of the resistor R39 and the third end of the motor driving interface, the grid G of the field effect tube Q8 is connected with the first end of the resistor R35 and the first end of the resistor R36, the second end of the resistor R35 is connected with the control end LG2 of the controller U3 and the cathode of the diode D13, the anode of the diode D13 is connected with the second end of the resistor R36, the source S of the field effect tube Q8 is connected with the first end of the resistor R38 and the loop ground LS2 of the controller U3, and the second end of the resistor R38 is connected with the power supply ground GND;
the power capacitor terminal HS2 of the controller U3 is connected to the first terminal of the capacitor C21, the second terminal of the resistor R39 and the first terminal of the capacitor C22, the second terminal of the capacitor C21 is connected to the power capacitor terminal VBS2 of the controller U3 and the negative terminal of the diode D14, the positive terminal of the diode D14 is connected to the first terminal of the capacitor C23 and the power capacitor terminal VLS2 of the controller U3, and the second terminal of the capacitor C23 is connected to the second terminal of the capacitor C22 and the power ground GND.
In a preferred embodiment of the present invention, the motor sampling module further comprises a motor sampling module disposed on the PCB circuit board, the motor sampling module comprising: the first end of the resistor R43 is connected with the first end of the resistor PR1, the second end of the resistor R43 is connected with the first end of the resistor R44 and the first end of the capacitor C25, the second end of the resistor R44 is connected with the first end of the resistor R45 and the sampling input positive end PAD2 of the controller U3, the second end of the resistor R45 is connected with the power supply 2V5_REF, the first end of the resistor R50 is connected with the second end of the resistor PR1, the second end of the resistor R50 is connected with the second end of the capacitor C25 and the first end of the resistor R51, the second end of the resistor R51 is connected with the sampling input negative end PAD1 of the controller U3 and the first end of the resistor R52, the second end of the resistor R52 is connected with the sampling voltage end PAD0 of the controller U3 and the first end of the capacitor C14, and the second end of the capacitor C14 is connected with the power supply ground;
the first end of the resistor R57 is connected to the first end of the resistor PR2, the second end of the resistor R57 is connected to the first end of the capacitor C29 and the first end of the resistor R58, the second end of the resistor R58 is connected to the first end of the resistor R59 and the sampling input positive terminal PAD7 of the controller U3, the second end of the resistor R59 is connected to the power supply 2v5_ref, the first end of the resistor R63 is connected to the second end of the resistor PR2, the second end of the resistor R63 is connected to the second end of the capacitor C29 and the first end of the resistor R64, the second end of the resistor R64 is connected to the first end of the resistor R65 and the sampling input negative terminal PA6 of the controller U3, the second end of the resistor R65 is connected to the first end of the capacitor C9 and the sampling voltage terminal PAD5 of the controller U3, and the second end of the capacitor C9 is connected to the power supply ground.
In a preferred embodiment of the present invention, the data communication module includes a data communication first module or/and a data communication second module;
the data communication first module includes: the data communication terminal PE1 of the controller U3 is connected to the first terminal of the resistor R47, the first terminal of the resistor R41 and the first terminal of the resistor R42, the second terminal of the resistor R42 is connected to the cathode of the diode D15, the anode of the diode D15 is connected to the power supply VSUP, the second terminal of the resistor R41 is connected to the power supply ground GND, the first terminal of the transient suppression diode D16 and the first terminal of the capacitor C24, the second terminal of the transient suppression diode D16 is connected to the first terminal of the resistor R46, the second terminal of the capacitor C24 and the second terminal of the resistor R47, and the second terminal of the resistor R46 is connected to the interface 1 of the communication connector PWM 1;
the data communication terminal PT0 of the controller U3 is connected with the first terminal of a resistor R61, the second terminal of the resistor R61 is connected with the first terminal of a resistor R62 and the grid G of a field effect tube Q9, the drain D of the field effect tube Q9 is connected with the first terminal of a resistor R55 and the first terminal of a resistor R56, the second terminal of the resistor R55 is connected with the cathode of a diode D17, the anode of the diode D17 is connected with a power supply VSUP, the second terminal of the resistor R56 is connected with the first terminal of a capacitor C28, the first terminal of a transient suppression diode D18 and the first terminal of a resistor R49, the second terminal of the resistor R49 is connected with the interface 2 of a communication connector FG1, and the second terminal of the resistor R62 is connected with the source of the field effect tube Q9, the second terminal of a capacitor C28, the second terminal of the transient suppression diode D18 and the power supply GND;
The data communication second module includes: the data end D of the CAN driver U1 is connected with the data end CANH0 of the controller U3, the data end R of the CAN driver U1 is connected with the data end CANL0 of the controller U3, the power supply end VCC of the CAN driver U1 is connected with the power supply VI_3V, the power supply ground end GND of the CAN driver U1 is connected with the first end of the power supply ground GND and the first end of the capacitor C7, the second end of the capacitor C7 is connected with the reference voltage end Vref of the CAN driver U1, the low-level CAN voltage input/output end CANL of the CAN driver U1 is connected with the first end of the conjugated inductor L2, the high-level CAN voltage input/output end CANH of the CAN driver U1 is connected with the second end of the conjugated inductor L2, the slope resistor end Rs of the CAN driver U1 is connected with the first end of the resistor R2, the second end Rs of the resistor R2 is connected with the power supply ground GND, the third end of the inductor L2 is connected with the first end of the capacitor C2, the first end of the capacitor C5, the first end of the terminal resistor R3 is connected with the first end of the transient suppression diode D4 and the first end of the capacitor C1, the second end of the capacitor C1 is connected with the second end of the transient suppression diode 3 is connected with the second end of the capacitor C1, and the second end of the transient suppression diode is connected with the second end of the capacitor C1.
The invention also discloses an automobile four-way water pump control system, which comprises a water pump, a pair of three-way proportional valves, a first three-way proportional valve, a second three-way proportional valve and an automobile four-way water pump controller as set forth in one of claims 1-8;
the control end of the second three-way proportional valve is connected with the second control end of the automobile four-way water pump controller;
the first inlet end of the first three-way proportional valve is connected with a first cold and heat source, the second inlet end of the first three-way proportional valve is connected with a second cold and heat source, the outlet end of the first three-way proportional valve is connected with the inlet end of the water pump, the outlet end of the water pump is connected with the inlet end of the second three-way proportional valve, the first outlet end of the second three-way proportional valve is connected with a first conveying pipeline, and the second outlet end of the second three-way proportional valve is connected with a second conveying pipeline.
The invention also discloses a working method of the automobile four-way water pump control system, which comprises the following steps:
s-1, initializing a system;
s-2, a controller U3 acquires a temperature value acquired by a temperature module;
The calculation method for the first temperature module collection comprises the following steps:
wherein u is 1 A voltage value representing the first temperature module input controller U3;
η 1 representing the voltage error coefficient, eta, acquired by the first temperature module 1 ∈(0,1/13]；
U VI_3V Representing power supply VI/uA voltage value of 3V;
R 15 a resistance value of the resistor R15;
R T1 a resistance value of the thermistor RT 1;
→φ 1 representing a temperature value corresponding to the thermistor value acquired by the first temperature module;
indicating that the push-out was obtained.
The calculation method for the second temperature module collection comprises the following steps:
wherein u is 2 Representing the voltage value of the second temperature module input controller U3;
η 2 representing the voltage error coefficient, eta, acquired by the second temperature module 2 ∈(0,1/13]；
U VI_3V A voltage value representing power supply vi_3v;
R 17 the resistance value of the resistor R17;
R T1 a resistance value of the thermistor RT 1;
→φ 2 representing a temperature value corresponding to the thermistor value acquired by the second temperature module;
the calculation method for the collection of the third temperature module comprises the following steps:
wherein u is 3 A voltage value representing the input of the third temperature module into the controller U3;
η 3 representing the voltage error coefficient, eta, acquired by the third temperature module 3 ∈(0,1/13]；
U VI_3V A voltage value representing power supply vi_3v;
R 20 a resistance value of the resistor R20;
R T3 a resistance value of the thermistor RT 3;
→φ 3 representing a temperature value corresponding to the thermistor value acquired by the third temperature module;
The calculation method for the fourth temperature module collection comprises the following steps:
wherein u is 4 A voltage value representing the fourth temperature module input controller U3;
η 4 representing the voltage error coefficient, eta acquired by the fourth temperature module 4 ∈(0,1/13]；
U VI_3V A voltage value representing power supply vi_3v;
R 23 a resistance value of the resistor R23;
R T4 a resistance value of the thermistor RT 4;
→φ 4 representing a temperature value corresponding to the thermistor value acquired by the fourth temperature module;
the calculation method for the collection of the fifth temperature module comprises the following steps:
wherein u is 5 A voltage value representing the fifth temperature module input controller U3;
η 5 representing the voltage error coefficient, eta, acquired by the fifth temperature module 5 ∈(0,1/13]；
U VI_3V A voltage value representing power supply vi_3v;
R 26 a resistance value of the resistor R26;
R T5 a resistance value of the thermistor RT 5;
→φ 5 representing a temperature value corresponding to the thermistor value acquired by the fifth temperature module;
s-3, the controller U3 adjusts the temperature value of the output fluid according to the acquired temperature value; the method specifically comprises the following steps:
s-31, obtaining the temperature of the liquid to be output;
s-32, adjusting the opening sizes of a first inlet end of a first three-way proportional valve and a second inlet end of the first three-way proportional valve, wherein the opening size adjusting method comprises the following steps:
wherein phi is 1 Representing a temperature value acquired by the first temperature module;
Q 1,1 A flow value representing the first inlet end of the first three-way proportional valve when fully opened;
representing a first opening degree size proportion value of the first inlet end of the first three-way proportional valve;
Δt represents a unit time;
φ 2 representing the temperature value acquired by the second temperature module; phi (phi) 2 ＜φ 1 ；
Q 1,2 A flow value representing the second inlet end of the first three-way proportional valve when fully opened;
representing the opening degree scale value of the second inlet end of the first three-way proportional valve;
φ 0 representing the temperature of the liquid to be output;
Q 1,0 representing a flow value of an outlet end of the first three-way proportional valve;
s-33, judging the temperature and phi detected by the outlet end of the first three-way proportional valve 0 Size relationship between:
if phi 3 -φ 0 Phi is less than or equal to phi and represents a preset difference threshold value, the opening sizes of the first inlet end of the first three-way proportional valve and the second inlet end of the first three-way proportional valve are maintained, the opening of the second inlet end of the second three-way proportional valve is 0, and the opening of the first inlet end of the second three-way proportional valveIs of the opening degree of Represents the opening degree ratio value, Q, of the first inlet of the second three-way proportional valve 2,1 Representing the flow value, Q, of the second three-way proportional valve when the first inlet end is fully opened 1,1 Indicating the flow value of the first three-way proportional valve when the first inlet end is fully open +.>Represents the opening degree of the first inlet end of the first three-way proportional valve and Q 1,2 Indicating the flow value of the first three-way proportional valve when the second inlet end is fully open, +.>Representing the opening degree scale value of the second inlet end of the first three-way proportional valve;
if phi 3 -φ 0 > phi, then execute the next step;
s-34, adjusting the opening sizes of the first inlet end of the second three-way proportional valve and the second inlet end of the second three-way proportional valve, wherein the opening size adjusting method comprises the following steps:
wherein Q is 2,0 Representing a flow value of an outlet end of the second three-way proportional valve;
Δt represents a unit time;
Q 1,1 a flow value representing the first inlet end of the first three-way proportional valve when fully opened;
representing a first opening degree size proportion value of the first inlet end of the first three-way proportional valve;
Q 1,2 a flow value representing the second inlet end of the first three-way proportional valve when fully opened;
representing the opening degree scale value of the second inlet end of the first three-way proportional valve;
Q 2,2 the flow value of the second inlet end of the second three-way proportional valve is represented when the second inlet end is fully opened;
representing a second inlet end opening degree size proportion value of the second three-way proportional valve;
φ 3 representing the temperature value acquired by the third temperature module;
φ 4 represents the temperature value, phi, acquired by the fourth temperature module 4 ≤φ 2 ；
S-35, judging the temperature and phi detected by the outlet end of the second three-way proportional valve 0 Size relationship between:
if phi 5 -φ 0 If phi is less than or equal to phi, maintaining the opening degree of the first inlet end of the first three-way proportional valve, the second inlet end of the first three-way proportional valve, the first inlet end of the second three-way proportional valve and the second inlet end of the second three-way proportional valve;
if phi 5 -φ 0 And (2) increasing the opening of the second inlet end of the second three-way proportional valve, or increasing the opening of the second inlet end of the first three-way proportional valve, or decreasing the opening of the first inlet end of the first three-way proportional valve, and returning to the step S-32.
The invention also discloses a working method of the automobile four-way water pump, as shown in figures 3-7, comprising the following steps:
s1, invoking a water pump control initialization subprogram;
s2, calling a proportional valve initialization subprogram;
s3, a water pump control signal conversion subroutine;
s4, a temperature signal sampling module collects temperature information;
s5, calling a motor commutation monitoring subroutine to give a corresponding UVW driving signal;
s6, a speed regulation subroutine;
s7, judging whether phase detection:
if the phase detection is carried out, executing a phase failure detection subprogram and entering a fault processing program;
if the phase detection is not carried out, executing the next step;
s8, judging whether overcurrent detection:
If the overcurrent detection is carried out, executing an overcurrent detection subprogram and entering a fault processing program;
if the overcurrent detection is not carried out, executing the next step;
s9, judging whether undervoltage detection is carried out:
if the undervoltage detection is carried out, executing an undervoltage detection subprogram and entering a fault processing program;
if the undervoltage detection is not carried out, executing the next step;
s10, judging whether overvoltage detection is carried out:
if the overvoltage detection is carried out, executing an overvoltage detection subprogram and entering a fault processing program;
if the overvoltage detection is not carried out, executing the next step;
s11, judging whether to start detection:
if the starting detection is carried out, starting a slow acceleration value and entering a rotating speed calculating subprogram; executing step S12;
if the starting detection is not carried out, returning to the step S3;
s12, a current sampling subroutine;
s13, judging whether overcurrent detection:
if the overcurrent detection is carried out, executing an overcurrent detection subprogram and entering a fault processing program;
if the overcurrent detection is not carried out, entering a speed regulation subroutine, and then executing a proportional valve control program;
s14, after the fault processing program is executed, entering a proportional valve control program;
s15, after the proportional valve control program is executed, the process returns to the step S3.
In a preferred embodiment of the present invention, the following steps are included in step S15:
In a preferred embodiment of the present invention, the proportional valve control routine includes the steps of:
s141, a position signal sampling module collects valve opening position information;
s142, a temperature signal sampling module collects temperature information;
s143, valve control signal conversion subprogram;
s144, a valve target position calculation subroutine;
s145, sending a valve forward rotation and reverse rotation driving signal to the three-way proportional valve according to the target position of the valve;
s146, judging whether overcurrent detection:
if the overcurrent detection is carried out, executing an overcurrent detection subprogram and entering a fault processing program;
if the overcurrent detection is not carried out, executing the next step;
s147, judging whether undervoltage detection:
if the undervoltage detection is carried out, executing an undervoltage detection subprogram and entering a fault processing program;
if the undervoltage detection is not carried out, executing the next step;
s148, judging whether overvoltage detection is carried out:
if the overvoltage detection is carried out, executing an overvoltage detection subprogram and entering a fault processing program;
if the overvoltage detection is not carried out, executing the next step;
s149, collecting valve position signals, and judging whether the target position is reached after the valve position signals are collected:
if the target position is reached, stopping driving the valve, and exiting the proportional valve control program;
If the target position is not reached, executing the next step;
s150, executing a current sampling subroutine, and judging whether overcurrent detection is carried out:
if overcurrent is detected, a fault processing program is entered; after entering the fault processing program for processing, executing the next step;
if no overcurrent is detected, returning to the step S149 until the target position is reached, and executing the next step;
s151, exiting the proportional valve control program.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (1)

1. The working method of the automobile four-way water pump control system is characterized by comprising the following steps of:
s-1, initializing a system;
s-2, a controller U3 acquires a temperature value acquired by a temperature module;
s-3, the controller U3 adjusts the temperature value of the output fluid according to the acquired temperature value; the method specifically comprises the following steps:
s-31, obtaining the temperature of the liquid to be output;
s-32, adjusting the opening degree of a first inlet end of the first three-way proportional valve and a second inlet end of the first three-way proportional valve;
S-33, judging the temperature and phi detected by the outlet end of the first three-way proportional valve 0 Size relationship between:
if phi 3 -φ 0 Phi is less than or equal to phi and represents a preset difference threshold value, the opening degree of the first inlet end of the first three-way proportional valve and the opening degree of the second inlet end of the first three-way proportional valve are maintained, the opening degree of the second inlet end of the second three-way proportional valve is 0, and the opening degree of the first inlet end of the second three-way proportional valve isRepresents the opening degree ratio value, Q, of the first inlet of the second three-way proportional valve 2,1 Representing the flow value, Q, of the second three-way proportional valve when the first inlet end is fully opened 1,1 Representing the first inlet end of the first three-way proportional valveFlow value at on,/->Represents the opening degree of the first inlet end of the first three-way proportional valve and Q 1,2 Indicating the flow value of the first three-way proportional valve when the second inlet end is fully open, +.>Representing the opening degree scale value of the second inlet end of the first three-way proportional valve;
if phi 3 -φ 0 > phi, then execute the next step;
s-34, adjusting the opening degree of the first inlet end of the second three-way proportional valve and the opening degree of the second inlet end of the second three-way proportional valve;
s-35, judging the temperature and phi detected by the outlet end of the second three-way proportional valve 0 Size relationship between:
if phi 5 -φ 0 If phi is less than or equal to phi, maintaining the opening degree of the first inlet end of the first three-way proportional valve, the second inlet end of the first three-way proportional valve, the first inlet end of the second three-way proportional valve and the second inlet end of the second three-way proportional valve;
If phi 5 -φ 0 And (2) increasing the opening of the second inlet end of the second three-way proportional valve, or increasing the opening of the second inlet end of the first three-way proportional valve, or decreasing the opening of the first inlet end of the first three-way proportional valve, and returning to the step S-32.
CN202310947235.0A 2022-06-27 2022-06-27 Working method of automobile four-way water pump control system Pending CN116877401A (en)

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CN109263433A (en) * 2017-07-17 2019-01-25 台州市德诚电器有限公司 A kind of electric automobile whole temperature control system
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