CN113503392B - Full-bridge type proportional electromagnetic valve driving device and control method - Google Patents

Full-bridge type proportional electromagnetic valve driving device and control method Download PDF

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Publication number
CN113503392B
CN113503392B CN202110716577.2A CN202110716577A CN113503392B CN 113503392 B CN113503392 B CN 113503392B CN 202110716577 A CN202110716577 A CN 202110716577A CN 113503392 B CN113503392 B CN 113503392B
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voltage
circuit
power supply
supply module
mos tube
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CN113503392A (en
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刘振
杨海
吴昊洋
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Jiangsu Advanced Construction Machinery Innovation Center Ltd
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Jiangsu Advanced Construction Machinery Innovation Center Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor

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  • Electromagnetism (AREA)
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Abstract

The invention discloses a full-bridge type proportional solenoid valve driving device and a control method in the field of valves special for engineering machinery, and aims to solve the technical problems that the existing control mode is limited by battery voltage, the effective voltage regulation range of an electromagnetic coil end is narrow, and the applicability is poor. A full-bridge proportional solenoid valve drive comprising: the power supply module supplies power to the driving device; the CAN transceiver circuit receives an external instruction and forwards the external instruction to the main control circuit; and the master control circuit is used for receiving the instruction forwarded by the CAN transceiver circuit, generating a driving instruction and forwarding the driving instruction to the driving circuit, and is also used for detecting the voltage of the power supply module, comparing the voltage with a set output voltage value, and controlling the switched-in buck-boost bridge arm to regulate the voltage by combining with the driving circuit. The invention can adopt a new control method to effectively control the direction of the driving current, and make the system work in a step-up/step-down switchable mode, thereby enlarging the working voltage range of the system.

Description

Full-bridge type proportional electromagnetic valve driving device and control method
Technical Field
The invention relates to a full-bridge proportional solenoid valve driving device and a control method, and belongs to the technical field of valves special for engineering machinery.
Background
The proportional electromagnetic valve is an element in which a proportional electromagnet in the valve generates corresponding action according to an input voltage signal, so that a valve core of a working valve generates displacement, the size of a valve port is changed, and pressure and flow output in proportion to the input voltage is completed. Spool displacement may also be fed back mechanically, hydraulically or electrically. The proportional electromagnetic valve has the advantages of various forms, easy composition and use of various electric and computer-controlled electro-hydraulic systems, high control precision, flexible installation and use, strong pollution resistance and the like, so the application field is increasingly widened. The plug-in type proportional valve and the proportional multi-way valve which are researched and produced in recent years fully take the use characteristics of engineering machinery into consideration, and have the functions of pilot control, load sensing, pressure compensation and the like. The appearance of the hydraulic control system has important significance for improving the overall technical level of the mobile hydraulic machinery. The method has good application prospect particularly in the aspects of electric control pilot operation, wireless remote control, wired remote control operation and the like.
The proportional solenoid valve driving main circuit topology in the existing device mostly adopts a full-bridge circuit composed of 4 MOS tubes for directly driving a proportional coil for battery voltage, and adopts a chopping pulse width modulation mode to adjust output voltage, so that the current of an electromagnetic coil is changed, and the purpose of controlling the displacement of a valve core is achieved; in addition, the diagonal MOS tube opening group in the full-bridge circuit is controlled, the polarity of the output voltage is changed, the direction of current in the electromagnetic coil is controlled, and the purpose of controlling the displacement direction of the valve core is achieved. The driving mode hardware circuit and the driving method are simple, but the voltage acting on the electromagnetic coil is pulse voltage and contains high-frequency harmonic waves, so that on one hand, the stability of current control is reduced, the current response time is prolonged, and the real-time performance of the control valve is poor. On the other hand, the PWM (pulse width modulation) driving is a chopping control mode and is limited by the voltage of the battery, and the effective voltage adjusting range of the electromagnetic coil end is narrow, so that the applicability is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a full-bridge type proportional solenoid valve driving device and a control method, and solves the technical problems that the existing control mode is limited by battery voltage, the effective voltage regulating range of an electromagnetic coil end is narrow, and the applicability is poor.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides a full-bridge proportional solenoid valve driving device, including:
the power supply module supplies power to the driving device;
the CAN transceiver circuit receives an external instruction and forwards the external instruction to the main control circuit;
the master control circuit is used for receiving the instruction forwarded by the CAN transceiver circuit, generating a driving instruction and forwarding the driving instruction to the driving circuit, detecting the voltage of the power supply module, comparing the voltage with a set output voltage value, and controlling a switched-in buck-boost bridge arm to regulate the voltage by combining with the driving circuit;
the main drive circuit adopts a full-bridge buck-boost circuit and comprises two buck-boost bridge arms which respectively output voltages with different polarities, and each buck-boost bridge arm controls the output voltage of the power supply module;
and the driving circuit receives the driving instruction of the main control circuit and controls the main control circuit to switch into the specified buck-boost bridge arm.
Preferably, the vehicle-mounted driving device further comprises an external terminal, and the driving device is connected with the power supply module and the external vehicle control unit through the external terminal.
Preferably, the power supply further comprises an anti-reverse diode, and the anti-reverse diode is connected with the input anode of the power supply module through the external terminal.
Preferably, the power supply further comprises a P-type MOS transistor connected to the anti-reverse diode, and the main control circuit switches the P-type MOS transistor on and off according to a voltage range of the power supply module to perform power-on or power-off protection.
Preferably, the device also comprises a sampling conditioning circuit and a BUCK circuit, wherein the sampling conditioning circuit is connected with the main drive circuit and used for performing voltage amplitude conversion on a voltage signal of the main drive circuit and inputting the voltage signal into the main control circuit, and the BUCK circuit is connected with the power supply module and converts the voltage of the power supply module into a control power supply for supplying power to the sampling conditioning circuit, the main control circuit and the CAN receiving and transmitting circuit.
Preferably, the main driving circuit includes:
the BUCK-BOOST bridge arm comprises a BUCK-BOOST bridge arm I consisting of a BUCK1_ MOS tube, a BOOST1 inductor, a first sampling resistor and a BOOST1_ MOS tube, and comprises a BUCK-BOOST bridge arm II consisting of a BUCK2_ MOS tube, a BOOST2 inductor, a second sampling resistor and a BOOST2_ MOS tube, wherein:
the drain electrode of the BUCK1_ MOS tube is connected with the voltage input positive electrode of the power supply module, and the source electrode of the BUCK1_ MOS tube is connected with one end of a BOOST1 inductor;
the drain electrode of the BOOST1_ MOS tube is connected with the other end of the BOOST1 inductor, and the source electrode of the BOOST1_ MOS tube is connected with the voltage input cathode of the power supply module;
the first sampling resistor is connected in series into a loop formed by connecting a BOOST1 inductor and a BOOST1_ MOS tube in series;
the drain electrode of the BUCK2_ MOS tube is connected with the voltage input positive electrode of the power supply module, and the source electrode of the BUCK2_ MOS tube is connected to one end of a BOOST2 inductor;
the drain electrode of the BOOST2_ MOS tube is connected with the other end of the BOOST2 inductor, and the source electrode of the BOOST2_ MOS tube is connected with the voltage input cathode of the power supply module;
the second sampling resistor is connected in series into a loop formed by connecting a BOOST2 inductor and a BOOST2_ MOS tube in series;
the main drive circuit further comprises:
the input filter capacitor is connected in parallel with the voltage input positive electrode and the voltage input negative electrode of the power supply module;
the load coil is connected with the current sampling resistor in series and forms a parallel circuit with the load end supporting capacitor, and the parallel circuit is connected with the drain electrode of the SW1_ MOS tube and the drain electrode of the SW2_ MOS tube;
and the source electrode of the SW1_ MOS tube and the source electrode of the SW2_ MOS tube are both connected with the voltage input cathode of the power supply module.
In a second aspect, the present invention provides a driving control method for a full-bridge type proportional solenoid valve, which is applied to the driving device for a full-bridge type proportional solenoid valve, and includes:
detecting a voltage value of a power supply module and judging the voltage;
if the judgment is passed, receiving an instruction of the whole vehicle controller, and judging the polarity of the output voltage of the power supply module; otherwise, reporting the voltage fault of the power supply module;
controlling a main drive circuit to switch into a specified buck-boost bridge arm according to the output voltage polarity of the power supply module;
and detecting the voltage of the power supply module, and controlling the output voltage value of the power supply module after comparing the voltage with the set output voltage value.
Preferably, the detecting the voltage value of the power supply module and determining the voltage includes: and detecting the voltage value of the power supply module and judging whether the voltage value is in a reasonable range, if so, judging that the voltage value passes, and otherwise, judging that the voltage value does not pass.
Preferably, if the voltage of the power supply module is greater than the set output voltage, the buck-boost bridge arm switched on by the main drive circuit is controlled to work in a buck mode.
Preferably, if the voltage of the power supply module is smaller than the set output voltage, the buck-boost bridge arm switched on by the main drive circuit is controlled to work in a boost mode.
Compared with the prior art, the invention has the following beneficial effects:
compared with the traditional PWM control method, the direct current control can improve the current following performance, so that the driving signal and the flutter signal can be well decoupled, the driving current ripple is reduced, the current control precision is improved, the response time of the valve is saved, the controller can flexibly and effectively work in a wide-voltage single/bipolar platformized driving mode, and the application range of the controller is improved.
Drawings
FIG. 1 is a block diagram of an apparatus according to a first embodiment of the present invention;
FIG. 2 is a main driving circuit topology according to a first embodiment of the present invention;
fig. 3 is a working circuit topology of a buck-boost bridge arm according to a first embodiment of the present invention;
fig. 4 is a topology of a working circuit of a buck-boost bridge arm two according to a first embodiment of the present invention;
fig. 5 is a control block diagram of an apparatus according to a second embodiment of the present invention.
In the figure: 1. an external terminal; 2. an anti-reverse diode; 3. an anti-surge circuit; 4. a P-type MOS tube; 5. a main drive circuit; 6. a BUCK circuit; 7. a sampling conditioning circuit; 8. a master control circuit; 9. a drive circuit; 10. a CAN transceiver circuit; 501. inputting a filter capacitor; 502. BUCK1_ MOS tube; 503. a first sampling resistor; 504. BOOST1_ MOS tube; 505. a BOOST1 inductance; 506. SW1_ MOS tube; 507. a load end supporting capacitor; 508. a BOOST2 inductance; 509. BOOST2_ MOS tube; 510. a second sampling resistor; 511. BUCK2_ MOS tube; 512. a load coil; 513. a current sampling resistor; 514. SW2_ MOS tube.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The first embodiment is as follows:
a full-bridge type proportional solenoid valve driving device, please refer to fig. 1, comprising: an external terminal 1; the anti-reverse diode 2 is connected with the input anode of the battery end through the external terminal 1, and mainly prevents the voltage polarity from being connected reversely when the battery end is connected with the device to damage the device; the anti-surge circuit 3, wherein the anti-surge circuit 3 is connected with the rear end of the anti-reverse diode 2 to prevent the device from being damaged by static electricity or lightning; the P-type MOS tube 4 is also connected to the rear end of the anti-reverse diode 2 at the same time, and is used for supplying power to a rear end switch and mainly playing roles in electrifying and protecting power failure; the main drive circuit 5 is used for receiving a control signal sent by the drive circuit 9, controlling a buck-boost MOSFET tube in the circuit, further switching a buck-boost bridge arm, and simultaneously performing power conversion to drive the buck-boost bridge arm to generate electromagnetic force to push the valve core to displace; the BUCK circuit 6, wherein the BUCK circuit 6 is a voltage reduction module, converts the battery terminal voltage into a relatively low control power supply, and supplies power to the sampling conditioning circuit 7, the main control circuit 8 and the CAN transceiving circuit 10; a sampling conditioning circuit 7; a main control circuit 8; the input end of the driving circuit 9 is connected with the main control circuit 8, the output end of the driving circuit 9 is connected with the main drive circuit 5, and the driving circuit 9 receives a displacement instruction of the main control circuit 8 and directly controls a buck-boost MOSFET in the main drive circuit 5; and a CAN transceiver circuit 10, wherein one end of the CAN transceiver circuit 10 is connected with the main control circuit 8, and the other end is connected with a vehicle control unit outside the device, and is a communication link between the device and the vehicle control unit.
Referring to fig. 2, the main driving circuit 5 adopts a novel full-bridge BUCK/BOOST circuit, and the circuit mainly includes an input filter capacitor 501, a BUCK1_ MOS transistor 502, a first sampling resistor 503, a BOOST1_ MOS transistor 504, a BOOST1 inductor 505, a SW1_ MOS transistor 506, a load end support capacitor 507, a BOOST2 inductor 508, a BOOST2_ MOS transistor 509, a second sampling resistor 510, a BUCK2_ MOS transistor 511, a load coil 512, a current sampling resistor 513, and a SW2_ MOS transistor 514; the input filter capacitor 501 is connected in parallel with the positive and negative voltage inputs of the battery terminal; the drain of the BUCK1_ MOS tube 502 is connected with the voltage input anode of the battery end, and the source is connected with one end of a BOOST1 inductor 505; the drain electrode of the BOOST1_ MOS transistor 504 is connected with the other end of the BOOST1 inductor 505, and the source electrode is connected with the negative voltage input electrode of the battery end; the first sampling resistor 503 is connected in series in a loop formed by connecting a BOOST1 inductor 505 and a BOOST1_ MOS transistor 504 in series; the load coil 512 is connected in series with the current sampling resistor 513 and forms a parallel circuit with the load end supporting capacitor 507, and the parallel circuit is connected with the drain of the SW1_ MOS transistor 506 and the drain of the SW2_ MOS transistor 514; the source of the SW1_ MOS transistor 506 and the source of the SW2_ MOS transistor 514 are respectively connected with the voltage input cathode of the battery end;
the drain electrode of the BUCK2_ MOS tube 511 is connected with the voltage input positive electrode of the battery end, and the source electrode is connected with one end of the BOOST2 inductor 508; the drain of the BOOST2_ MOS 509 is connected to the other end of the BOOST2 inductor 508, the source is connected to the negative voltage input terminal of the battery terminal, and the second sampling resistor 510 is connected in series to a loop formed by the BOOST2 inductor 508 and the BOOST2_ MOS 509 in series. The load side support capacitor 507 mainly plays a role of output filtering to smooth the output voltage. The BOOST1_ MOS transistor 504 and the BOOST2_ MOS transistor 509 are BOOST MOSFET transistors, the BUCK1_ MOS transistor 502 and the BUCK2_ MOS transistor 511 are BUCK MOSFET transistors, the SW1_ MOS transistor 506 is a first switch by using a MOSFET transistor, and the SW2_ MOS transistor 507 is a second switch by using a MOSFET transistor.
Referring to fig. 3, in the novel full-bridge BUCK/BOOST circuit, a BUCK1_ MOS transistor 502, a BOOST1 inductor 505, a first sampling resistor 503 and a BOOST1_ MOS transistor 504 form a BUCK-BOOST bridge arm i; referring to fig. 4, buck-BOOST bridge arm two is composed of a buck2 v MOS transistor 511, a BOOST2 inductor 508, a second sampling resistor 510, and a BOOST2_ MOS transistor 509; the two step-up/step-down bridge arms respectively output voltages with different polarities, and in addition, each bridge arm can flexibly control the output voltage under wide-range input voltage through controlling the step-up/step-down MOS tube.
In the full-bridge proportional solenoid valve driving device based on step-up/step-down, a SW1_ MOS tube 506 and a SW2_ MOS tube 514 in a novel full-bridge step-up/step-down circuit are respectively connected with two ends of a load end supporting capacitor 507 to control the on and off of the two tubes, determine the working states of two bridge arms and further effectively change the polarity of output voltage according to requirements; the current sampling resistor 513 in the novel full-bridge step-up/step-down circuit converts output current signals of two bridge arms into voltage signals respectively, the voltage signals are subjected to voltage amplitude conversion through the sampling conditioning circuit 7 and are input into the main control circuit 8, the main control circuit 8 detects actual current values and compares the actual current values with given current values, and the output voltage values are adjusted through a closed-loop PID algorithm so as to control the current value of the electromagnetic coil.
Example two:
a full-bridge proportional electromagnetic valve driving control method, as shown in fig. 5, after the battery end of the device is electrified, a main control circuit 8 detects the voltage value of the battery end, if the voltage value is not in the allowable range, the voltage fault of the battery end is reported, and a P-type MOS tube 4 keeps the disconnection state; if the current is in a reasonable range, closing the P-type MOS tube 4; next, the CAN transceiver circuit 10 receives the command, determines the polarity of the output voltage, and if the command is a positive output command, turns on the SW2_ MOS tube 514, turns off the SW1_ MOS tube 506, and starts the buck-boost bridge arm one; if the command is a negative command, the SW1_ MOS transistor 506 is turned on, the SW2_ MOS transistor 514 is turned off, and the buck-boost bridge arm two is started; then, the main control circuit 8 detects the battery terminal voltage, compares the battery terminal voltage with a set output voltage value, the set voltage value is calculated by a current closed-loop algorithm in the main control circuit 8, and the control states are as follows in combination with the starting conditions of the bridge arm:
1) If the voltage of the battery end is larger than the set output voltage, the BUCK-BOOST bridge arm I is started to work in a BUCK mode, at this time, the BOOST1_ MOS tube 504 is in a normally-off state, the BUCK1_ MOS tube 502 is in a high-frequency chopping working state, the output voltage value is controlled by adjusting the chopping duty ratio value, and in addition, the BUCK2_ MOS tube 511 and the BOOST2_ MOS tube 509 in the second bridge arm are both in a disconnected state.
2) If the battery end voltage is smaller than the set output voltage, starting the BUCK-BOOST bridge arm I to enable the bridge arm I to work in a BOOST mode, wherein the BOOST1_ MOS tube 504 is in a high-frequency chopping working state, the output voltage value is controlled by adjusting the chopping duty ratio value, the BUCK1_ MOS tube 502 is in a normally-on state, and the BUCK2_ MOS tube 511 and the BOOST2_ MOS tube 509 in the bridge arm II are in a disconnected state.
3) If the battery end voltage is greater than the set output voltage, the BUCK-BOOST bridge arm II is started to work in a BUCK mode, at this time, the BOOST2_ MOS tube 509 is in a normally-off state, the BUCK2_ MOS tube 511 is in a high-frequency chopping working state, and the output voltage value is controlled by adjusting the chopping duty ratio value. In addition, both BUCK1_ MOS transistor 502 and BOOST1_ MOS transistor 504 in the first bridge arm are in an off state.
4) If the battery terminal voltage is smaller than the set output voltage, the BUCK-BOOST bridge arm II is started to work in a BOOST mode, at this time, the BOOST2_ MOS tube 509 is in a high-frequency chopping working state, the chopping duty ratio value is adjusted to further control the output voltage value, and the BUCK2_ MOS tube 511 is in a normally-on state. In addition, both BUCK1_ MOS transistor 502 and BOOST1_ MOS transistor 504 in the first bridge arm are in an off state.
If the battery end voltage is detected in the closed state of the P-type MOS tube 4, if an overvoltage fault occurs, the current working bridge arm is required to enter a shutdown state, namely the buck-boost control tubes are all in a normally-off state, the P-type MOS tube 4 is also required to enter a normally-off state, and the battery end and a power supply loop of the equipment are cut off, so that the purpose of protecting the equipment is achieved.
The full-bridge proportional solenoid valve driving device and the control method based on voltage rising/falling can flexibly and effectively enable the controller to work in a wide-voltage single/bipolar platformization driving mode, and improve the application range of the controller; compared with the traditional PWM control method, the direct current control method can improve the current following performance, is convenient for the good decoupling of the driving signal and the flutter signal, reduces the driving current ripple, improves the current control precision and saves the response time of the valve.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a full bridge type proportional solenoid valve drive arrangement which characterized by includes:
the power supply module supplies power to the driving device;
the CAN receiving and transmitting circuit receives an external instruction and forwards the external instruction to the main control circuit;
the master control circuit is used for receiving the instruction forwarded by the CAN receiving and transmitting circuit, generating a driving instruction and forwarding the driving instruction to the driving circuit, detecting the voltage of the power supply module, comparing the voltage with a set output voltage value, and controlling the switched-in buck-boost bridge arm to regulate the voltage by combining with the driving circuit;
the driving circuit receives a driving instruction of the main control circuit and controls the main control circuit to switch into a specified buck-boost bridge arm;
the main drive circuit adopts a full-bridge buck-boost circuit and comprises two buck-boost bridge arms which respectively output voltages with different polarities, and each buck-boost bridge arm controls the output voltage of the power supply module;
the main drive circuit includes:
the input filter capacitor is connected in parallel with the voltage input positive electrode and the voltage input negative electrode;
the drain electrode of the BUCK1_ MOS tube is connected with the voltage input positive electrode, and the source electrode of the BUCK1_ MOS tube is connected with one end of a BOOST1 inductor;
the drain electrode of the BOOST1_ MOS tube is connected with the other end of the BOOST1 inductor, and the source electrode of the BOOST1_ MOS tube is connected with the negative electrode of the voltage input;
the first sampling resistor is connected in series into a loop formed by connecting a BOOST1 inductor and a BOOST1_ MOS tube in series;
the load coil is connected with the current sampling resistor in series and forms a parallel circuit with the load end supporting capacitor, and the parallel circuit is connected with the drain electrode of the SW1_ MOS tube and the drain electrode of the SW2_ MOS tube;
the source electrode of the SW1_ MOS tube and the source electrode of the SW2_ MOS tube are both connected with the negative electrode of the voltage input;
a drain electrode of the BUCK2_ MOS tube is connected with a voltage input positive electrode, and a source electrode of the BUCK2_ MOS tube is connected to one end of a BOOST2 inductor;
the drain electrode of the BOOST2_ MOS tube is connected with the other end of the BOOST2 inductor, and the source electrode of the BOOST2_ MOS tube is connected with the negative electrode of the voltage input;
the second sampling resistor is connected in series into a loop formed by connecting the BOOST2 inductor and the BOOST2_ MOS tube in series;
the BUCK-BOOST bridge arm comprises a BUCK-BOOST bridge arm I consisting of a BUCK1_ MOS tube, a BOOST1 inductor, a first sampling resistor and a BOOST1_ MOS tube; and a BUCK-BOOST bridge arm II is formed by the BUCK2_ MOS tube, the BOOST2 inductor, the second sampling resistor and the BOOST2_ MOS tube.
2. The driving device of the full-bridge proportional solenoid valve according to claim 1, further comprising an external terminal, wherein the driving device is connected to the power supply module and the external vehicle control unit through the external terminal.
3. The full-bridge proportional solenoid valve driving device according to claim 2, further comprising an anti-reverse diode, wherein the anti-reverse diode is connected to the input anode of the power supply module through an external terminal.
4. The driving device of the full-bridge proportional solenoid valve according to claim 3, further comprising a P-type MOS transistor connected to the anti-reverse diode, wherein the main control circuit switches the P-type MOS transistor on or off according to a voltage range of the power supply module.
5. The full-bridge proportional electromagnetic valve driving device according to claim 1, further comprising a sampling conditioning circuit and a BUCK circuit, wherein the sampling conditioning circuit is connected to the main driving circuit and is configured to perform voltage amplitude conversion on a voltage signal of the main driving circuit and input the voltage signal to the main control circuit, and the BUCK circuit is connected to the power supply module and converts a voltage of the power supply module into a control power supply for supplying power to the sampling conditioning circuit, the main control circuit and the CAN transceiver circuit.
6. A full-bridge type proportional solenoid valve driving control method applied to the full-bridge type proportional solenoid valve driving device according to claim 1, comprising:
detecting a voltage value of a power supply module and judging the voltage;
if the judgment is passed, receiving an instruction of the whole vehicle controller, and judging the polarity of the output voltage of the power supply module; otherwise, reporting the voltage fault of the power supply module;
controlling a main drive circuit to switch into a specified buck-boost bridge arm according to the output voltage polarity of the power supply module;
and detecting the voltage of the power supply module, and controlling the output voltage value of the power supply module after comparing the voltage with the set output voltage value.
7. The driving control method of the full-bridge proportional solenoid valve according to claim 6, wherein the detecting the voltage value of the power supply module and determining the voltage comprises: and detecting the voltage value of the power supply module and judging whether the voltage value is in a reasonable range, if so, judging that the voltage value passes, and otherwise, judging that the voltage value does not pass.
8. The drive control method of the full-bridge proportional solenoid valve as claimed in claim 6, wherein if the voltage of the power supply module is greater than the set output voltage, the buck-boost bridge arm switched in by the main drive circuit is controlled to operate in the buck mode.
9. The drive control method of the full-bridge proportional solenoid valve as claimed in claim 6, wherein if the voltage of the power supply module is less than the set output voltage, the buck-boost bridge arm switched in by the main drive circuit is controlled to operate in the boost mode.
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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4842221B2 (en) * 2007-07-11 2011-12-21 日立建機株式会社 Electromagnetic proportional valve drive control device
CN105978123B (en) * 2016-06-06 2018-05-15 东南大学 A kind of dynamic adjusting system of phase-shifting full-bridge formula Vehicular charger dead time
CN208461700U (en) * 2018-07-24 2019-02-01 西安工业大学 A kind of hardware modulation compensated circuit in photovoltaic parallel in system
CN208874481U (en) * 2018-09-28 2019-05-17 厦门著赫电子科技有限公司 A kind of electromagnetic coil energy saving driving circuit
CN109578355B (en) * 2018-11-12 2020-09-22 温州大学苍南研究院 Full-bridge type pilot control switch valve

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