CN105840320B - A kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit - Google Patents
A kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit Download PDFInfo
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- CN105840320B CN105840320B CN201610280231.1A CN201610280231A CN105840320B CN 105840320 B CN105840320 B CN 105840320B CN 201610280231 A CN201610280231 A CN 201610280231A CN 105840320 B CN105840320 B CN 105840320B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical
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Abstract
The present invention relates to a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuits.A kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit, it is made of controller end driving circuit section and driving pinboard, the controller end driving circuit includes the first optocoupler, first metal-oxide-semiconductor, first zener diode, second freewheeling diode, the first divider resistance, the 4th divider resistance and the second current-limiting resistance, third current-limiting resistance；The driving pinboard includes driving circuit and logic control circuit two parts, and the driving pinboard end driving circuit includes the second metal-oxide-semiconductor, third metal-oxide-semiconductor, the 5th coil drive selection chip.It is that edge D flip-flop and eight select a data selector that the present invention, which realizes that fault loop passively cuts out the core of function, and the latch function of edge D flip-flop can guarantee the reliable output in Fault Control circuit.It controls changeover section control circuit to be realized by analog device, high reliablity.
Description
Technical field
The present invention relates to a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuits.
Background technique
Diesel engine development have upper a century history, because its higher thermal efficiency, wide power bracket, preferably fit
The advantages that answering property and be widely used.The reliability of electron speed regulator can be turned up in two-node cluster hot backup electron speed regulator, therefore
Diesel engine no shutdown continuous operation in the case of barrier, wherein the driving of twin coil actuator is two-node cluster hot backup electron speed regulator
Important link.The characteristics of twin coil actuator is that an actuator is made of two-way coil, and two-way coil can independent work
Make the pull rod of driving actuator.Two-node cluster hot backup electron speed regulator has following requirement to executing agency: first having to Seeking Truth two-route wire
Circle independent can be driven, i.e., two-way actuator coil can work at the same time, and any one road coil can work independently again；Its
When single machine failure occurs in dual-machine hot backup system, the corresponding control loop of fault loop can passively be cut off for secondary requirement.If
The redundancy actuator driven circuit of meter is largely divided into two parts, controller end actuator driven and driving pinboard, two parts
It cooperates and completes the driving of actuator.The driving circuit of driving pinboard part is equivalent on actuator driven circuit one and opens
It closes, switches on-off by two controller co- controllings.In all normal situation of two control loops, two-way control loop is simultaneously
Work, when a control loop breaks down, fault loop can be cut out under the control of regular path, be effectively isolated failure, mentioned
High system availability.There are many patents to be referred to the concept of two-node cluster hot backup in the document having disclosed, but these patents without
By be from application field or from system performance index require with this patent suffer from essence difference；Furthermore the paper of Song Bailing
Refer to the Digital Governor for Diesel Engine of two-node cluster hot backup, but there is no accurately refer to that the driving of above-mentioned twin coil actuator need to
It asks.Two controllers, a driving pinboard and a twin coil actuator constitute a set of dual-machine hot backup system.
Summary of the invention
The purpose of the present invention is to provide a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuits.
The object of the present invention is achieved like this:
A kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit, by controller end driving circuit section and
Pinboard composition is driven, the controller end driving circuit includes the first optocoupler G1, the first metal-oxide-semiconductor Q1, the first zener diode
Z1, the second sustained diode 2, the first divider resistance R1, the 4th divider resistance R4 and the second current-limiting resistance R2, third current limliting electricity
Hinder R3；The driving pinboard includes driving circuit and logic control circuit two parts, and driving pinboard end driving circuit includes
Second metal-oxide-semiconductor Q2, third metal-oxide-semiconductor Q3, coil drive select chip U5, first diode D1, third diode D3, the 5th current limliting
Resistance R5, the 9th current-limiting resistance R9；The logic control circuit selects a data selector U1 and the two or eight to select one including the one or eight
Data selector U4, edge D flip-flop U2, two inputs and door U3 and the first pull-up resistor R7, the second pull-up resistor R8；
In controller end driving circuit, the pin 1 of the first optocoupler and the second optocoupler passes through second resistance R2 and the tenth resistance
R10 is connected on VCC, and the pin 2 of the first optocoupler G1 is connected on pulse-width signal input port PWM, the second optocoupler G2's
Pin 2 is connected to the pwm signal delivery outlet of the first controller；The pin 4 of first optocoupler G1 and the second optocoupler G2 pass through first point
Piezoresistance R1 and the 11st divider resistance R11 are connected on+24V, and the pin 3 of the first optocoupler G1 and the second optocoupler G2 pass through the 4th
Divider resistance R4 and the 13rd divider resistance R13 are connected on GND, the first zener diode Z1 and the second zener diode Z2 and
4th divider resistance R4, the 13rd divider resistance R13 are in parallel, limit the gate voltage being added on metal-oxide-semiconductor, the first optocoupler G1 and the
Two optocoupler G2 are by being connected to the base of the first metal-oxide-semiconductor Q1 and the 4th metal-oxide-semiconductor Q4 by third current-limiting resistance R3 and twelfth resistor R12
The former pole of pole, the first metal-oxide-semiconductor Q1 and the 4th metal-oxide-semiconductor Q4, drain electrode are connected to 24V voltage and the second sustained diode 2 and the 4th is continuous
Flow diode D4 on, the other end of the second sustained diode 2 and the 4th sustained diode 4 then with first coil L1, the second line
The the first driving anode DRIVE1+ and the second driving anode DRIVE2+ for enclosing L2 are connected；
Drive pinboard end driving circuit connection relationship: including driving selection chip TPS2812 and the second metal-oxide-semiconductor Q2 and
Third metal-oxide-semiconductor Q3；The pin 2 and pin 4 of driving selection chip TPS2812 is connected to the input of driving plate logic circuit two and door U3
Chip output pin 3 and pin 6, driving selection chip TPS2812 pin 7 and pin 5 pass through the 5th current-limiting resistance R5
The base stage of the second metal-oxide-semiconductor Q2 and third metal-oxide-semiconductor Q3, the second metal-oxide-semiconductor Q2 and third metal-oxide-semiconductor Q3 are connected to the 9th current-limiting resistance R9
Source electrode 24V voltage is connected to by first diode D1 and third diode D3, the second metal-oxide-semiconductor Q2 and third metal-oxide-semiconductor Q3's
Source electrode is connected on the first cathode DRIVE1- and the second cathode DRIVE2- of coil drive, the second metal-oxide-semiconductor Q2 and the 3rd MOS
The drain electrode of pipe Q3 is connected to GND；The first anode DRIVE1+ of the first coil L1 of twin coil actuator and the second coil L2 and
Two anode DRIVE2+ are connected to controller end driving circuit, the first cathode DRIVE1- of first coil L1 and the second coil L2 and
Second cathode DRIVE2- is connected to driving pinboard end driving circuit；
Driving plate logic circuit selects a data selector U1 and the four or eight to select a data selector U4, edge D by the one or eight
The input of trigger U2 and two is formed with door U3, and connection relationship is: the one or eight selects the control terminal pin 11 of a data selector U1, draws
Foot 10 and pin 9 are connected to control logic output port A0, A1, A2 of the first controller, and the four or eight selects a data selector U4
Control terminal pin 11, pin 10 and pin 9 be connected to control logic output port B0, B1, B2 of second controller；One or eight
Select a data selector U1 and the four or eight that data input pin D0~D4, D6 and the D7 of a data selector U4 is selected to be connected to GND, D5
It is connected to VCC；One or eight selects a data selector U1 and the four or eight that the output pin 5 of a data selector U4 is selected to be connected to first
The input terminal of two inputs and door U3A and the two or two input and door U3B；The pin 4 and pin 6 of edge D flip-flop U2A connects jointly
Pin 14 and pin 16 to control logic the output end B3, edge D flip-flop U2B of second controller are then commonly connected to first
The control logic output terminals A 3 of controller, the output of edge D flip-flop U2A is connected to two inputs and an input of door U3A is drawn
Foot 1, the output of edge D flip-flop U2B are connected to an input pin 5 of two inputs Yu door U3B, the pin of two inputs and door U3
1 and pin 5 high level is pulled upward to by the first pull-up resistor R7 and the second pull-up resistor R8, the one or two input is defeated with door U3A's
Pin 3 is connected to the input of pin the 2, the 2nd 2 of coil drive selection chip U5 out and the output pin 6 of door U3B is connected to coil
The pin 4 of driving selection chip U5.
The control terminal A0, control terminal A1, control terminal A2 connection first of a data selector U1 is selected to control in described the one or eight
On the I/O pin of device, when three pins of the first controller export 101, D5 data pin is strobed, and the one or eight selects a number
High level is exported according to selector U1, the PR of edge D flip-flop U2A connects the B3 pin of second controller, system work with CLK pin
B3 is low level when making normal, and edge D flip-flop U2A exports high level, and the one or eight selects a data selector U1 and edge D to trigger
The output of device U2A is connected to coil drive selection chip U5 after two inputs and door U3, and coil drive selects chip U5 output
High level driving the first metal-oxide-semiconductor Q2, the first metal-oxide-semiconductor Q2 conducting；First coil L1 connecting line is connected to DRIVE1+ and DRIVE1-,
First coil L1 is controlled by the pwm signal of the first controller；When the first controller breaks down the I/O pin of then second controller
B3 is high level by low level overturning, and when the CLK pin of edge D flip-flop U2A has a rising edge, then output pin Q is locked
To be identical as pin D, and pin D be grounded, edge trigger export low level, the one or two input with door U3A export low level,
Then the first metal-oxide-semiconductor Q2 ends, and the first controller disconnects, and fault loop is passively cut out.
5 feet of one or two input and 1 foot of door U3A and the two or two input and door U3B pass through the first pull-up resistor R7 and the
Two pull-up resistor R8 pull-up is high level.
Controller end driving circuit is that the first metal-oxide-semiconductor Q1 is that voltage opens form, passes through the first divider resistance R1 and the 4th
The cut-in voltage that the resistance value matching of divider resistance R4 is the first metal-oxide-semiconductor Q1, prevents cut-in voltage is excessively high to be added to the on circuit
One zener diode Z1.
The first metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q3 in adaptor end driving circuit is driven to be in and conducting in fault-free.
The beneficial effects of the present invention are: two-way coil can work independently under normal operating conditions；Under malfunction
It realizes passively cutting out for Fault Control circuit, realizes Fault Isolation, guarantee the diesel engine no shutdown continuous operation under malfunction.
Realizing that fault loop passively cuts out the core of function is that edge D flip-flop and eight select a data selector, the lock of edge D flip-flop
The reliable output in Fault Control circuit can be guaranteed by depositing function.It controls changeover section control circuit to be realized by analog device, reliably
Property it is high.
Detailed description of the invention
Fig. 1 is controller end driving circuit；
Fig. 2 is driving pinboard end logic circuit；
Fig. 3 is driving pinboard end driving circuit；
The position Fig. 4 dual-machine hot backup system layout drawing；
Specific embodiment
The present invention is described further with reference to the accompanying drawing.
The present invention provides a kind of two-node cluster hot backup electronic governor actuator driving circuits, are mainly driven by controller end
Circuit part and driving switch control circuit two parts composition.Wherein controller end driving circuit includes including optocoupler G1, metal-oxide-semiconductor
Q1, a zener diode Z1, sustained diode 2, divider resistance R1, R4 and current-limiting resistance R2, R3；Wherein driving switching control
Circuit processed includes metal-oxide-semiconductor Q2, Q3, and coil drive selects chip U5, diode D1, D3, and current-limiting resistance R5, R9 two eight are selected a number
According to selector U1 and U4, an edge D flip-flop U2, a dual input and door U3 and pull-up resistor R7, R8.The present invention proposes
A kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit, the input terminal of optocoupler G1 and the PWM letter of single-chip microcontroller
Number be connected, optocoupler G1 output end by divider resistance R1, R4 generate 9V voltage control metal-oxide-semiconductor Q1 on-off, metal-oxide-semiconductor Q2's and Q3
On-off is selected by the driving enable signal that data selector, edge D flip-flop and two inputs are generated with door by coil drive
Chip controls.The circuit can be realized the driving of two-node cluster hot backup electron speed regulator twin coil actuator, can be realized fault-free
When two coils of actuator work independently, failure machine when single machine failure is passively cut out, and normal controller works on.
The present invention designs a kind of driving circuit of two-node cluster hot backup electron speed regulator twin coil actuator, realizes that twin coil is same
When independent operating and failure coil passively cut out, normal coil works on, realize fault condition under diesel engine no shutdown it is steady
Continuous operation improves system reliability and availability.
The object of the present invention is achieved like this:
A kind of two-node cluster hot backup electron speed regulator redundancy twin coil actuator driven circuit, it is characterized in that: mainly by controlling
Device end driving circuit section and driving pinboard two large divisions composition.The controller end driving circuit includes optocoupler G1, metal-oxide-semiconductor
Q1, zener diode Z1, sustained diode 2, divider resistance R1, R4 and current-limiting resistance R2, R3, each controller are at least gathered around
There is a controller end drive circuit module；The driving pinboard includes driving circuit and logic control circuit two parts, institute
Stating driving pinboard end driving circuit includes metal-oxide-semiconductor Q2, Q3, coil drive selection chip U5, diode D1, D3, current-limiting resistance
R5,R9；The logic control circuit includes two eight and selects a data selector U1 and U4, an edge D flip-flop U2, and one two
Input and door U3 and pull-up resistor R7, R8.
The connection relationship of controller end driving circuit is such that the pin 1 of optocoupler G1 and G2 are connected by R2 and R10 respectively
It is connected on VCC, the pin 2 of optocoupler G1 is connected on pulse-width signal input port PWM, and the pin 2 of optocoupler G2 is connected to micro-
The pwm signal delivery outlet of controller (see Fig. 4).The pin 4 of optocoupler G1 and G2 is connected to by divider resistance R1 and R11 respectively+
On 24V, the pin 3 of optocoupler G1 and G2 are connected on GND by divider resistance R4 and R13 respectively, and zener diode Z1 and Z2 points
Not and R4 and R13 is in parallel, to limit the gate voltage being added on metal-oxide-semiconductor, optocoupler G1 and G2 by connecting respectively by R3 with R12
To the base stage of metal-oxide-semiconductor Q1 and Q4, the former pole of metal-oxide-semiconductor and drain electrode are connected respectively on 24V and sustained diode 2 and D4, afterflow two
Pole pipe D2 is then connected with coil L1 with the driving anode DRIVE1+ of coil L2 with DRIVE2+ respectively with the other end of D4.
Driving pinboard end driving circuit connection relationship be such that mainly include driving selection chip TPS2812 and
Metal-oxide-semiconductor Q2 and Q3 (see Fig. 3).The pin 2 and pin 4 of driving selection chip TPS2812 is connected respectively to driving plate logic circuit
Two output pins 3 and pin 6 of two inputs and door chip U3, the pin 7 and pin 5 of driving selection chip TPS2812 are distinguished
The base stage of metal-oxide-semiconductor Q2 and Q3 is connected to by R5 and R9, metal-oxide-semiconductor Q2 is connected by diode D1 with D3 respectively again with the source electrode of Q3
On the cathode DRIVE1- and DRIVE2- for being connected to coil drive to the source electrode of 24V, while metal-oxide-semiconductor Q2 and Q3, metal-oxide-semiconductor Q2 and
The drain electrode of Q3 is connected to GND.The positive DRIVE1+ and DRIVE2+ of the coil L1 and coil L2 of twin coil actuator are connected to control
The cathode DRIVE1- and DRIVE2- of making sheet end driving circuit, coil L1 and coil L2 are connected to driving pinboard end driving circuit
(see Fig. 4).
Pinboard end logic circuit is driven to select data selector a U1 and U4, edge D flip-flop U2 and two defeated by two eight
Enter and form (see Fig. 2) with door U3, connection relationship is such that eight select the control terminal pin 11 of a data selector U1, pin 10
Control logic output port A0, A1, A2 of controller 1 are connected to pin 9, eight select the control terminal pin of a data selector U4
11, pin 10 and pin 9 are connected to control logic output port B0, B1, B2 of controller 2；Eight select a data selector U1 and
Data input pin D0~D4, D6 and the D7 of U4 is connected to GND, and D5 is connected to VCC.Eight select that the U1's and U4 of a data selector is defeated
Pin 5 is then connected respectively to the input terminal of two inputs Yu door U3A and U3B out.The pin 4 and pin 6 of edge D flip-flop U2A is then
It is commonly connected to pin 14 and the then common connection of pin 16 of control logic the output end B3, edge D flip-flop U2B of controller 2
To the control logic output terminals A 3 of controller 1, the output of edge D flip-flop U2A is connected to two inputs and an input of door U3A
Pin 1, the output of edge D flip-flop U2B are connected to an input pin 5 of two inputs Yu door U3B, and two inputs are drawn with door U3's
Foot 1 and pin 5 are pulled upward to high level by resistance R7 and R8 respectively, and two inputs and the output pin 3 of door U3A are connected to driving plate
The output pin 6 of the pin 2 of end driving circuit driving chip U5, two inputs and door U3B are connected to the drive of driving plate end driving circuit
The pin 4 of dynamic chip U5.
Two-node cluster hot backup electron speed regulator twin coil actuator driven circuit is achieved in that be closed by the circuit connection
System, eight select three control terminals A0, A1, A2 of a data selector U1 to be separately connected on the I/O pin of master controller, by circuit
The truth table (being shown in Table 2) of mono- data selector of connection relationship (see Fig. 2) He Baxuan only has three pins output 101 when controller
When, D5 data pin is strobed, and U1 can just export high level, and the PR of edge D flip-flop U2A connects controller 2 with CLK pin
B3 pin, B3 is low level when system is working properly, and edge D flip-flop U2A exports high level, and the output of U1 and U2A is passed through
It is connected to coil drive selection chip U5 after two inputs and door U3, U5 exports high level and drives metal-oxide-semiconductor Q2, Q2 conducting.Actuator
Coil L1 connecting line is connected respectively to DRIVE1+ and DRIVE1- (see Fig. 4), and the working condition of actuator coil L1 is only controlled by
The pwm signal of controller 1.When the break down I/O pin B3 of then controller 2 of control loop 1 by low level overturning is high level,
By the working characteristics (being shown in Table 1) of edge D flip-flop, when the CLK pin of U2A has a rising edge, then output pin Q is locked as
It is identical as pin D, and pin D is grounded, edge trigger export low level, two inputs export low level, then MOS with door U3A
Pipe Q2 cut-off, control loop 1 disconnect, and fault loop is passively cut out.
Two-node cluster hot backup electron speed regulator twin coil actuator driven circuit further include:
1, two inputs are high level by pull-up resistor R7 and R8 pull-up with 1 foot of door U3A and 5 feet of U3B, guarantee only have
When one controller connection, system can also be worked normally.
2, it is that voltage opens form that controller end driving circuit, which is metal-oxide-semiconductor Q1, passes through the resistance value of divider resistance R7 and R4
With the cut-in voltage for metal-oxide-semiconductor Q1, cut-in voltage is excessively high in order to prevent is added to zener diode Z1 on circuit, guarantees MOS
Pipe is reliable to be opened.
3, the metal-oxide-semiconductor Q2 and Q3 in the driving circuit of pinboard end is driven to be in and conducting, the type selecting of metal-oxide-semiconductor in fault-free
It needs to use standard type selecting according to drop volume as the sustained ceiling current of metal-oxide-semiconductor Q2 and Q3 according to the operating current of actuator, it is no
It then may result in metal-oxide-semiconductor to burn because of overheat.
It is described in more detail below with reference to Fig. 1~4 and 2 couples of table 1, table present invention.Table 1 is edge D flip-flop true value
Table；Table 2 is eight truth tables for selecting a data selector.
It specifically includes in conjunction with the two-node cluster hot backup electron speed regulator redundancy twin coil actuator driven circuit of Fig. 1~4 with lower part
Point:
Controller end driving circuit is located on controller (see Fig. 4), and wherein metal-oxide-semiconductor Q1 is controlled by the pwm signal of single-chip microcontroller.
At least controller end driving circuit all the way on one controller of two-node cluster hot backup electron speed regulator.Drive control pinboard is main
Including driving pinboard end logic circuit and driving pinboard end driving circuit, one piece of drive control pinboard contains two-way drive
It is dynamic, two coils are driven, driving pinboard is controlled by the common I/O pin of four single-chip microcontrollers.Driving pinboard is equivalent in coil
It is added to one on driving circuit to be switched by monolithic processor controlled combinational logic, combinational logic circuit function is realized under fault-free
Normally off is switched, fault loop passively cuts out under malfunction.The case where when breaking down now with regard to control loop 2, is specific
Illustrate the workflow of driving circuit.
When active and standby controller is all working properly, two actuator coils are worked at the same time.The positive and negative anodes of actuator connect respectively
It is connected to DRIVE1+ and DRIVE1-, only coil can just lead to when controller end metal-oxide-semiconductor Q1 and driving pinboard Q2 are simultaneously turned on
Electricity.Controller generates pwm signal and is connected on the pin 2 of optocoupler G1, and 1 foot of optocoupler G1 passes through current-limiting resistance R2 connection VCC, when
Optocoupler is connected when pwm signal is low level, according to optocoupler characteristic, is then also switched between 3 feet and 4 feet of optocoupler G1, according to partial pressure
The resistance value of principle configuration resistance makes the voltage of the pin 3 of optocoupler G1 be greater than the cut-in voltage of metal-oxide-semiconductor, metal-oxide-semiconductor conducting.When PWM is
High level optocoupler cannot be connected, and 3 voltage of pin of optocoupler G1 is 0V, metal-oxide-semiconductor Q1 cut-off.
Drive the metal-oxide-semiconductor Q2 of pinboard by 2 foot of driving enable end and 4 foot control systems of driving selection chip U5, when driving makes
2 foot input high level of energy end, then 7 feet of coil drive selection chip U5 export 12V high level, metal-oxide-semiconductor Q2 conducting；When driving
2 foot input low level of enable end, then 7 feet of coil drive selection chip U5 export 0V low level, then metal-oxide-semiconductor Q2 ends；Driving
What 2 foot of enable end connected is the output of combinational logic circuit, and the conducting of metal-oxide-semiconductor is decided by combine with cut-off on driving pinboard patrols
Collect the output of circuit.
Driving pinboard logic circuit selects a data selector U1, U4, edge D flip-flop U2 and two to input and door U3 by eight
Composition is selected known to the truth table (see Fig. 2 and table 2) of a data selector by the connection relationship of logic circuit and eight only when eight choosings
When control pin A0, A1 and A2 of one data selector U1 distinguishes input high level, low level, high level, i.e. A0A1A2's is defeated
When being out 101, eight select the 5 pin Y1 of output of a data selector U1 to export the input for being equal to 14 pin D5.The 14 foot D5 of U1 connect
It is connected to VCC, therefore when the control pin A0A1A2 of U1 input 101, U1 exports high level.Edge D flip-flop it is true
It is worth table as shown in figure 4, working as the 2 pin CLR input high levels of edge D flip-flop U2, when 6 pin PR input low level, 8 pin Q
Output is high level, and when 4 pin CLK are the rising edge of high level by low level overturning, locking is equal to 3 by the output of 8 pin Q
The input of pin D.
Two coils are all devoted oneself to work when controller 1 and controller 2 all working properly, and controller 1 is connected at this time
Pin output 101, the B3 pin of A0A1A2 exports low level 0, according to the working principle of logic circuit it is found that eight selecting a number at this time
High level is exported according to selector U1, edge D flip-flop exports U2A and exports high level, then the truth table from two inputs and door
3 feet of U3 export high level at this time, then metal-oxide-semiconductor Q2 is connected, and coil L1 is controlled by the letter of controller end driving circuit PWM at this time
Number.Similarly, eight the I/O pin B0B1B2 of the corresponding controller 2 of control pin A0A1A2 of a data selector U4 is selected to input
101, A3 pin input low levels, metal-oxide-semiconductor Q3 conducting, the operating condition value of coil L2 are controlled by the pwm signal of controller 2.Two
A coil can simultaneously independent operating.
When 2 circuit of controller is broken down, it is desirable that the circuit L2 stops working under the control of controller 1 --- it is passive
It cuts out.Then only needing the I/O pin A3 of controller 1 to be overturn by low level is high level, and 16 pin CLK of edge D flip-flop have one
A rising edge, according to the working principle of edge D flip-flop, the 13 pin Q output of edge D flip-flop U2B is locked into low level,
Two inputs and 6 pins of door U3B export low level, metal-oxide-semiconductor Q3 cut-off, at this time no matter the B0B1B2 and backup machine of controller 2
PWM is any state, and coil L2 stops working, and realizes passively cutting out for Fault Control circuit control.
Table 1
Table 2
Claims (4)
1. a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit, by controller end driving circuit section and drive
Turn fishplate bar composition, the controller end driving circuit include the first optocoupler (G1), the first metal-oxide-semiconductor (Q1), two pole of the first pressure stabilizing
It manages (Z1), the second freewheeling diode (D2), the first divider resistance (R1), the 4th divider resistance (R4) and the second current-limiting resistance
(R2), third current-limiting resistance (R3)；The driving pinboard includes driving circuit and driving plate end logic control circuit two parts,
Pinboard end driving circuit is driven to select chip (U5) including the second metal-oxide-semiconductor (Q2), third metal-oxide-semiconductor (Q3), coil drive, first
Diode (D1), third diode (D3), the 5th current-limiting resistance (R5), the 9th current-limiting resistance (R9)；Driving plate end logic
Control circuit selects a data selector (U1) and the two or eight to select a data selector (U4) including the one or eight, edge D flip-flop
(U2), two inputs and door (U3) and the first pull-up resistor (R7), the second pull-up resistor (R8)；It is characterized by:
In controller end driving circuit, the pin 1 of the first optocoupler is connected on VCC by second resistance (R2), the second optocoupler
Pin 1 is connected on VCC by the tenth resistance (R10)；The pin 2 of first optocoupler (G1) is connected to pulse-width signal input terminal
On mouth PWM, the pin 2 of the second optocoupler (G2) is connected to the pwm signal delivery outlet of the first controller；The pin of first optocoupler (G1)
4 are connected on+24V by the first divider resistance (R1), and the pin 4 of the second optocoupler (G2) passes through the 11st divider resistance (R11)
It is connected on+24V, the pin 3 of the first optocoupler (G1) is connected on GND by the 4th divider resistance (R4), the second optocoupler (G2)
Pin 3 be connected on GND by the 13rd divider resistance (R13), the first zener diode (Z1) and the 4th divider resistance
(R4) in parallel, the 13rd divider resistance (R13) of the second zener diode (Z2) is in parallel, limits the gate voltage being added on metal-oxide-semiconductor,
First optocoupler (G1) is connected to the base stage of the first metal-oxide-semiconductor (Q1) by third current-limiting resistance (R3), and the second optocoupler (G2) passes through the
12 resistance (R12) are connected to the base stage of the 4th metal-oxide-semiconductor (Q4), and the former pole of the 4th metal-oxide-semiconductor (Q4), drain electrode are connected respectively to 24V
On voltage and the second freewheeling diode (D2), the former pole of the first metal-oxide-semiconductor (Q1), drain electrode are connected respectively to 24V voltage and second and continue
It flows on diode (D2), the other end of the second freewheeling diode (D2) and the first driving anode (DRIVE1 of first coil (L1)
+) be connected, the other end of the 4th freewheeling diode (D4) then drives positive (DRIVE2+) to be connected with the second of the second coil (L2)；
Drive the connection relationship of pinboard end driving circuit: including driving selection chip TPS2812 and the second metal-oxide-semiconductor (Q2) and the
Three metal-oxide-semiconductors (Q3)；The pin 2 and pin 4 of driving selection chip TPS2812 is connected to the input of driving plate end logic control circuit two
Pass through the 5th current-limiting resistance with the pin 7 of the output pin 3 and pin 6 of the chip of door (U3), driving selection chip TPS2812
(R5) it is connected to the base stage of the second metal-oxide-semiconductor (Q2), the pin 5 of driving selection chip TPS2812 passes through the 9th current-limiting resistance (R9)
It is connected to the base stage of third metal-oxide-semiconductor (Q3), the source electrode of the second metal-oxide-semiconductor (Q2) is connected to 24V voltage by first diode (D1),
The source electrode of third metal-oxide-semiconductor (Q3) is connected to 24V voltage, the second metal-oxide-semiconductor (Q2) and third metal-oxide-semiconductor by third diode (D3)
(Q3) source electrode is connected respectively to again on the first cathode (DRIVE1-) and the second cathode (DRIVE2-) of coil drive, and second
The drain electrode of metal-oxide-semiconductor (Q2) and third metal-oxide-semiconductor (Q3) is connected to GND；The first coil (L1) of twin coil actuator and the second coil
(L2) first positive (DRIVE1+) and second positive (DRIVE2+) are connected to controller end driving circuit, first coil (L1)
Driving pinboard end driving electricity is connected to the first cathode (DRIVE1-) and the second cathode (DRIVE2-) of the second coil (L2)
Road；
Driving plate end logic control circuit the two or eight selects the connection relationship of a data selector to be: the one or eight selects a data selector
(U1) control terminal pin 11, pin 10 and pin 9 is connected to control logic output port A0, A1, A2 of the first controller, the
Sixteen select the control terminal pin 11, pin 10 and pin 9 of a data selector (U4) to be connected to the control logic of second controller
Output port B0, B1, B2；One or eight selects a data selector (U1) and the two or eight that the data of a data selector (U4) is selected to input
End D0~D4, D6 and D7 are connected to GND, and D5 is connected to VCC；One or eight selects a data selector (U1) and the two or eight to select a data
The output pin 5 of selector (U4) is connected to the input terminal of the one or two input with door (U3A) and the two or two input and door (U3B)；
The pin 4 and pin 6 of first edge D flip-flop (U2A) are commonly connected to the control logic output end (B3) of second controller, the
The pin 14 and pin 16 of two edge D flip-flops (U2B) are then commonly connected to the control logic output end (A3) of the first controller,
The output of first edge D flip-flop (U2A) is connected to an input pin 1 of the one or two input and door (U3A), the second edge D
The output of trigger (U2B) is connected to an input pin 5 of the two or two input and door (U3B), and two inputs are drawn with door (U3's)
Foot 1 is pulled upward to high level by the first pull-up resistor (R7), and two inputs and the pin 5 of door (U3) pass through the second pull-up resistor (R8)
It is pulled upward to high level, the one or two input is connected to the pin 2 of coil drive selection chip (U5) with the output pin 3 of door (U3A),
Two or two input is connected to the pin 4 of coil drive selection chip (U5) with the output pin 6 of door (U3B).
2. a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit according to claim 1, feature
It is: selects the control terminal A0, control terminal A1, control terminal A2 the first controller of connection of a data selector (U1) in described the one or eight
I/O pin on, when the first controller three pins export 101 when, D5 data pin is strobed, the one or eight select a data select
Device (U1) output high level is selected, the PR of the first edge D flip-flop (U2A) connects the B3 pin of second controller with CLK pin, is
B3 is low level when uniting working properly, and the first edge D flip-flop (U2A) exports high level, and the one or eight selects a data selector
(U1) and the output of the first edge D flip-flop (U2A) is connected to coil drive selection chip after two inputs and door (U3)
(U5), coil drive selection chip (U5) output high level driving the second metal-oxide-semiconductor (Q2), the second metal-oxide-semiconductor (Q2) conducting；First Line
Circle (L1) connecting line is connected to DRIVE1+ and DRIVE1-, and first coil (L1) is controlled by the pwm signal of the first controller；When
The break down I/O pin B3 of then second controller of one controller by low level overturning is high level, when the first edge D flip-flop
(U2A) CLK pin has when a rising edge then that output pin Q is locked as identical as pin D, and pin D is grounded, the first edge
D type flip flop (U2A) exports low level, and the one or two input exports low level with door (U3A), then the second metal-oxide-semiconductor (Q2) ends, and first
Controller disconnects, and fault loop is passively cut out.
3. a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit according to claim 1, feature
Be: controller end driving circuit is that the first metal-oxide-semiconductor (Q1) is that voltage opens form, passes through the first divider resistance (R1) and the 4th
The resistance value matching of divider resistance (R4) is the cut-in voltage of the first metal-oxide-semiconductor (Q1), prevents cut-in voltage is excessively high from adding on circuit
First zener diode (Z1).
4. a kind of diesel engine two-node cluster hot backup electronic governor actuator driving circuit according to claim 1, feature
Be: the second metal-oxide-semiconductor (Q2) and third metal-oxide-semiconductor (Q3) in driving pinboard end driving circuit are in and lead in fault-free
It is logical.
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| CN110005532B (en) * | 2019-03-18 | 2021-10-26 | 哈尔滨工程大学 | Driving circuit of diesel engine position control type actuator |
| CN112713760B (en) * | 2020-12-01 | 2022-03-04 | 北京无线电测量研究所 | Parallel redundant ferrite switch driver |
| CN112965130B (en) * | 2021-01-25 | 2022-11-08 | 江西瑞晟光电科技有限公司 | Device and method for detecting impurities on surface of wafer |
| CN113346610B (en) * | 2021-04-10 | 2022-07-15 | 上海昱章电气股份有限公司 | Redundant topological structure of power supply system |
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