CN104832563B - Double clutch electric control gear - Google Patents
Double clutch electric control gear Download PDFInfo
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- CN104832563B CN104832563B CN201410222865.2A CN201410222865A CN104832563B CN 104832563 B CN104832563 B CN 104832563B CN 201410222865 A CN201410222865 A CN 201410222865A CN 104832563 B CN104832563 B CN 104832563B
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- 230000009977 dual effect Effects 0.000 claims abstract description 109
- 238000003745 diagnosis Methods 0.000 claims abstract description 52
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 25
- 230000009467 reduction Effects 0.000 claims description 15
- 230000000052 comparative effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
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Abstract
The invention discloses a kind of double clutch electric control gear.The double clutch electric control gear is used to be controlled double clutch, and double clutch includes first clutch and second clutch, and the double clutch electric control gear includes：Sensor, is monitored for the position to first clutch and second clutch, obtains sensor signal；Sensing signal processor, the input of sensing signal processor is connected with sensor, is handled for obtaining sensor signal, and to sensor signal, the sensor signal after being handled；Dual core processor, is connected with the output end of sensing signal processor, for carrying out fault diagnosis to double clutch according to the sensor signal after processing；And execution unit, it is connected with dual core processor, the state for controlling double clutch according to fault diagnosis result.By the present invention, the effect improved to the fault diagnosis efficiency of double clutch has been reached.
Description
Technical field
The present invention relates to control field, in particular to a kind of pair of clutch electric control gear.
Background technology
Double clutch is applied on middle and high end car, general to use hydraulic control scheme, because hydraulic control is to hydraulic valve
Machining accuracy and sealing requirements it is higher, therefore the control technology of hydraulic control system is complicated, cost is high and security is low.
Traditional double clutch controller is improves the security of control, generally using the scheme of dual chip processor.
In dual chip processor scheme, double clutch is controlled by two chips, wherein, two chips include master chip and from
Chip.Master chip is responsible for the realization of systemic-function, and is responsible for from chip to master chip program operation conditions and system operation function
Monitoring.Master chip and each there is the house dog of oneself from chip, meanwhile, traditional double clutch controller generally only to for
The electric current for the power line that motor is powered is monitored all the way, and is typically that the electric current of power-line ground end is monitored.This
Sample, traditional double clutch controller is easily interfered (for example, easily being disturbed by common return flow path), Jin Errong
Easily fault monitoring is caused, also, can not monitor that switching tube leads directly to failure.In the related art, traditional double clutch control
The electric current of the power line of device also to being powered for motor carries out two-way monitoring, but cost is higher.
As fully visible, in the related art, had the disadvantages that using the control system of dual chip processor：
(1) in order to carry out fault diagnosis, need constantly to be verified with master chip from chip, therefore failure diagnosis time
It is longer, so as to cause the fault tolerance time of system longer, and then it is unsuitable for the higher occasion of requirement of real-time.Wherein, failure
Patient time is from finding failure, to carrying out troubleshooting, then to be transitioned into system the total time of safe condition, refer to
ISO26262-1。
(2) because dual chip processor system needs master chip and from two processor chips of chip, it is therefore desirable to two sets
Processor chips minimum system, improves system cost.
(3) due to mainly being completed from chip to the verification of master chip by communicating, therefore the wink occurred inside master chip
When hardware fault be difficult to be found, so as to cause system fault diagnosis coverage rate relatively low.
(4) due to mutually being communicated between master and slave processor, the time that processor handles other affairs shortens, therefore reduction
The disposal ability of processor.
(5) system design is complicated, and reliability is low.
(6) or current of electric monitoring scheme cost is higher in traditional double clutch electric control gear, otherwise easily by
Interference.
For double clutch electric control gear in correlation technique it is long to the Diagnostic Time of failure the problem of, not yet carry at present
Go out effective solution.
The content of the invention
It is a primary object of the present invention to provide a kind of double clutch electric control gear, to solve double clutch in correlation technique
The problem of electric control gear is long to the Diagnostic Time of failure.
To achieve these goals, the invention provides a kind of double clutch electric control gear.The double clutch electric control gear
For being controlled to double clutch, double clutch includes first clutch and second clutch, the double clutch electric control gear
Including：Sensor, is monitored for the position to first clutch and second clutch, obtains sensor signal；Sensing letter
Number processor, the input of sensing signal processor is connected with sensor, believes for obtaining sensor signal, and to sensor
Number handled, the sensor signal after being handled；Dual core processor, is connected with the output end of sensing signal processor,
For carrying out fault diagnosis to double clutch according to the sensor signal after processing；And execution unit, with dual core processor phase
Connection, the state for controlling double clutch according to fault diagnosis result.
Further, dual core processor judges that itself whether there is failure in the following manner：Dual core processor is to double-core
Implementing result be compared, obtain comparative result；And whether dual core processor judges dual core processor according to comparative result
There is failure.
Further, the double clutch electric control gear includes system base chip and microcontroller process chip, wherein, it is double
Core processor is arranged in microcontroller process chip, and system base chip is used to handle core to microcontroller in the following manner
Piece carries out question and answer processing：System base chip sends request signal to microcontroller process chip；System base chip receives micro-
The answer signal that controller process chip is returned；And system base chip judges whether answer signal is correct response letter
Number, wherein, system base chip is if it is judged that answer signal is correct answer signal, then after dual core processor is according to processing
Sensor signal to double clutch carry out fault diagnosis；And system base chip is if it is judged that answer signal is wrong
Answer signal, then dual core processor not according to the sensor signal after processing to double clutch carry out fault diagnosis.
Further, dual core processor includes：First core processor and the second core processor, wherein, the first core processor
Processor with the second core processor mutually to back up.
Further, the double clutch electric control gear also includes：Power supply chip, is connected with dual core processor, for pair
Dual core processor is powered；Voltage reduction module, one end is connected with external power source, and the other end is connected with power supply chip, for external
The voltage of portion's power supply carries out decompression processing, obtains the voltage needed for power supply chip.
Further, the double clutch electric control gear also includes：CAN transceiver, is connected with dual core processor, for connecing
Receive clutch and perform order, wherein, the clutch execution order control that dual core processor is used to receive based on CAN transceiver is held
Row unit adjusts the state of double clutch.
Further, pre- drive chip is provided with execution unit, dual core processor is additionally operable in the following manner to performing
Unit carries out fault diagnosis and condition adjudgement：Dual core processor obtains the pre- voltage status for driving chip；And dual core processor root
Fault diagnosis and condition adjudgement are carried out to execution unit according to voltage status.
Further, execution unit includes：First motor drive module, for being connected to first clutch；And second
Motor drive module, for being connected to second clutch.
Further, the first motor drive module includes：It is pre- to drive chip, the pre- input and dual core processor phase for driving chip
Connection；H bridges, the input of H bridges is connected with the pre- output end for driving chip, wherein, H bridges include the first H bridge arms and the 2nd H bridges
Arm；And current monitoring module, the input of current monitoring module is connected with H bridges, wherein, current monitoring module is used to pass through
In the following manner carries out fault diagnosis to H bridges：Current monitoring module obtains the electric current of H bridges, wherein, the electric current of H bridges includes the first H bridges
Arm electric current and the 2nd H bridge arm currents；And current monitoring module carries out fault diagnosis according to the electric current of the H bridges of acquisition to H bridges.
Further, dual core processor is connected to load unit, and dual core processor be additionally operable to it is right in the following manner
Load unit carries out fault diagnosis and condition adjudgement：Dual core processor obtains the liquid level information of load unit；And double-core processing
Device carries out fault diagnosis and condition adjudgement according to the liquid level information of acquisition to load unit, wherein, dual core processor is being monitored
Predetermined process is carried out to the failure of generation when load unit breaks down.
By the present invention, using the double clutch electric control gear including following structure：Sensor, for first clutch
It is monitored with the position of second clutch, obtains sensor signal；Sensing signal processor, the input of sensing signal processor
End is connected with sensor, is handled for obtaining sensor signal, and to sensor signal, the sensor after being handled
Signal；And dual core processor, it is connected with the output end of sensing signal processor, for according to the sensor signal after processing
Fault diagnosis is carried out to double clutch, due to carrying out fault diagnosis to double clutch by dual core processor, thus without setting again
Put master chip and from chip, a chip is only set, it is not necessary to by constantly accomplishing with verification master chip from chip
Fault diagnosis, solves the long problem of Diagnostic Time of double clutch electric control gear in correlation technique to failure, and then reach
Improve the effect to the fault diagnosis efficiency of double clutch.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of double clutch electric control gear according to embodiments of the present invention；
Fig. 2 is the system architecture schematic diagram of double clutch electric control gear according to the preferred embodiment of the invention；
Fig. 3 is the schematic diagram of motor drive module according to embodiments of the present invention；And
Fig. 4 is the schematic diagram of motor load current monitoring circuit according to embodiments of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of double clutch electric control gear is provided in embodiments of the present invention, and the double clutch electric control gear is used for double
Clutch is controlled, and double clutch includes first clutch and second clutch.The embodiment of the present invention is illustrated in Fig. 1
Double clutch electric control gear.
Fig. 1 is the schematic diagram of double clutch electric control gear according to embodiments of the present invention, as shown in figure 1, the double clutch
Electric control gear includes sensor, sensing signal processor, dual core processor and execution unit.
Sensor is used to be monitored the position of first clutch and second clutch, obtains sensor signal.Sensing
Device signal includes the sensor signal obtained after being monitored respectively to the position of first clutch and second clutch, i.e. pass
Sensor signal can include first sensor signal and second sensor signal, and first sensor signal is to first clutch
The sensor signal that position is obtained after being monitored, second sensor signal is to be obtained after being monitored to the position of second clutch
The sensor signal arrived.
Sensing signal processor includes input and output end, wherein, the input and sensor of sensing signal processor
It is connected, is handled for obtaining sensor signal, and to sensor signal, the sensor signal after being handled.Need
Illustrate, sensing signal processor can be with transducing signal process circuit, and it can carry out rectification, filtering etc. with sensor signal
Reason.
After dual core processor is connected with the output end of sensing signal processor, and dual core processor is used for according to processing
Sensor signal to double clutch carry out fault diagnosis.So-called dual core processor is the finger processor processor including 2
CPU, each CPU may be used to carry out double clutch fault diagnosis, and this 2 according to the sensor signal after processing
CPU can be used to carry out fault diagnosis to double clutch according to the sensor signal after processing simultaneously.
Execution unit is connected with dual core processor, the execution unit can be used for according to fault diagnosis result control it is double from
The state of clutch, for example, the execution unit can be used for according to fault diagnosis result control adjust double clutch positive-negative rotation state,
Rotating speed and rotation electric current etc..
In the embodiment, fault diagnosis can be carried out to double clutch by dual core processor, thus without setting again
Put master chip and from chip, a chip is only set.Due to no longer needing by constantly being carried out from chip with master chip
Verify to accomplish fault diagnosis, thus shorten the failure diagnosis time to double clutch, improve the failure to double clutch
Diagnosis efficiency.
Preferably, in embodiments of the present invention, dual core processor can judge itself with the presence or absence of event in the following manner
Barrier：Dual core processor is compared to the implementing result of double-core, obtains comparative result, and dual core processor is sentenced according to comparative result
Disconnected dual core processor whether there is failure.Wherein, when the implementing result of the double-core in dual core processor is identical, dual core processor
It may determine that itself is normal；Otherwise, when the implementing result of the double-core in dual core processor is different, dual core processor can be sentenced
Break and the processor core of at least one in dual core processor and there is failure.
Because the implementing result to double-core is compared, thus inside dual core processor, wink occurs for any processor core
When failure, because double-core implementing result is compared, compare itself and realized by hardware, failure, controller system can be had soon found that
System possesses the less fault tolerance time, the so-called fault tolerance time, refers to, from failure is found, carry out troubleshooting to system mistake
Cross the total time to safe condition.
In embodiments of the present invention, double clutch electric control gear can include system base chip (system
Basischip, referred to as SBC) and microcontroller process chip (MCU), the dual core processor in the embodiment of the present invention is arranged on
In microcontroller process chip, system base chip is used in the following manner carry out at question and answer microcontroller process chip
Reason：System base chip sends request signal to microcontroller process chip；System base chip receives microcontroller processing core
The answer signal that piece is returned；And system base chip judges whether answer signal is correct answer signal, wherein, system base
Plinth chip is if it is judged that answer signal is correct answer signal, then dual core processor is according to the sensor signal pair after processing
Double clutch carries out fault diagnosis；And system base chip if it is judged that answer signal be mistake answer signal, then it is double
Core processor does not carry out fault diagnosis according to the sensor signal after processing to double clutch.
Specifically, system base chip can be putd question to microcontroller process chip, and microcontroller process chip can be with base
Response is carried out in the enquirement of system base chip, if the response of microcontroller process chip and the default of system base chip are answered
Case is consistent, then this question and answer processing is correct, otherwise this question and answer processing mistake.
For example, question and answer processing can be carried out between system base chip and microcontroller process chip in the following manner：
First, system base chip can send the value x1 of a variable to microcontroller process chip, and then, system base chip can
To call preset function y=f (x), and calculated according to the value of the preset function and the variable, obtain functional value y1, simultaneously
Microcontroller process chip can also call corresponding function y=f (x), and be entered according to the value of the corresponding function He the variable
Row is calculated, and obtains functional value y2, if y1=y2, and this question and answer processing is correct, otherwise this question and answer processing mistake.
In embodiments of the present invention, system base chip can use fail-safe SBC, and microcontroller process chip can
To use lock-step microcontroller process chip LOCKSTEP MCU, so that, in embodiments of the present invention, using fail-
SafeSBC+LOCKSTEP MCU realize high security with succinct system architecture, and reduce the cost of system.
In embodiments of the present invention, dual core processor can include the first core processor and the second core processor, wherein, the
One core processor and the second core processor are the processor mutually backed up.
Due to employing double-core inside dual core processor, equivalent to employing dual processors inside MCU, and dual processors can be mutual
Backup.So, when transient fault occurs in any CPU, it can be found and be handled in time.
In an embodiment of the present invention, double clutch electric control gear can also include power supply chip and voltage reduction module, wherein,
Power supply chip is connected with dual core processor, and the power supply chip can be used for being powered dual core processor.Voltage reduction module
One end is connected with external power source, and its other end is connected with power supply chip, and voltage reduction module can be used for the electricity to external power source
Pressure carries out decompression processing, obtains the voltage needed for power supply chip, wherein, the voltage needed for power supply chip is by decompression processing
The low-voltage obtained afterwards.It should be noted that sensor can be connected to power supply chip, electric energy is provided for it by power supply chip,
Sensor can also be connected between power supply chip and voltage reduction module, and electric energy is provided for it by voltage reduction module.
In an embodiment of the present invention, double clutch electric control gear can also include CAN transceiver.CAN transceiver with it is double
Core processor is connected, specifically, and it can be connected with the CAN module in dual core processor, is performed for receiving clutch
Order.And CAN transceiver can be connected with outside electronic control unit (ECU), for according to the clutch received
Running status of order control electronic control unit etc. is performed, or receives the feedback signal of electronic control unit.Double-core processing
Device can be also used for the double clutches of feedback signal control execution unit adjustment of the electronic control unit received based on CAN transceiver
The state of device, for example, execution unit can be controlled to be used to adjust the positive-negative rotation state of double clutch, rotating speed and rotate electric current etc..
In embodiments of the present invention, pre- drive chip can be provided with foregoing execution unit, dual core processor can also be used
In in the following manner to execution unit progress fault diagnosis and condition adjudgement：Dual core processor obtains the pre- voltage shape for driving chip
State；And dual core processor carries out fault diagnosis and condition adjudgement according to voltage status to execution unit.
In embodiments of the present invention, execution unit can include：First motor drive module and the second motor drive module.
Wherein, the first motor drive module is connected to first clutch, and the second motor drive module is connected to second clutch.First electricity
Machine drive module and the second motor drive module can be identical motor drive module.First motor drive module can drive
First clutch motor, the second motor drive module can drive second clutch motor.
In embodiments of the present invention, foregoing first motor drive module can include：It is pre- to drive chip, H bridges and current monitoring
Module.The pre- input for driving chip is connected with dual core processor；The input of H bridges is connected with the pre- output end for driving chip,
Wherein, H bridges include the first H bridge arms and the 2nd H bridge arms；The input of current monitoring module is connected with H bridges, wherein, electric current prison
Surveying module is used to carry out fault diagnosis to H bridges in the following manner：Current monitoring module obtains the electric current of H bridges, wherein, H bridges
Electric current includes the first H bridge arm currents and the 2nd H bridge arm currents；And current monitoring module according to the electric current of the H bridges of acquisition to H bridges
Carry out fault diagnosis.So, the current value on H two H bridge arms of bridge can also be detected simultaneously by a current monitoring module, from
And the pin resource of dual core processor can be saved.
It should be noted that foregoing second motor drive module can be identical with foregoing first motor drive module, and
Current monitoring module in second motor drive module carries out fault diagnosis to the corresponding H bridges in the second motor drive module
Mode and mode phase of the current monitoring module in the first foregoing motor drive module to the carry out fault diagnosis of corresponding H bridges
Together, it will not be repeated here.
In embodiments of the present invention, dual core processor is connected to load unit, and dual core processor is additionally operable to load
Unit carries out fault diagnosis and condition adjudgement, and carries out when monitoring that load unit breaks down predetermined process.Specifically,
Dual core processor can carry out fault diagnosis and condition adjudgement to load unit in the following manner：Dual core processor obtains load
The liquid level information of unit；And dual core processor carries out fault diagnosis to load unit according to the liquid level information of acquisition and state is sentenced
It is disconnected, wherein, dual core processor carries out predetermined process when monitoring that load unit breaks down to the failure of generation.Need explanation
, in embodiments of the present invention, load unit can be motor.In embodiments of the present invention, dual core processor can be double
Core asynchronous processor, so, two cores in dual core processor can work under the control of different clocks.
Fig. 2 is the system architecture schematic diagram of double clutch electric control gear according to the preferred embodiment of the invention.Such as Fig. 2 institutes
Show, the double clutch electric control gear of the embodiment includes：Sensor, sensing signal processor, dual core processor, voltage reduction module,
Power supply chip, CAN transceiver, the first motor drive module and the second motor drive module.
Dual core processor is connected to power supply chip, and power supply chip is connected to voltage reduction module, and voltage reduction module is externally connected
Power supply, wherein, external power source can be KL30, and the KL30 is dc source.Voltage reduction module can be used for 24V voltages being reduced to
12V voltages, and by 12V voltage outputs to power supply chip.As an example, dual core processor can be substantially electric using TMS570
Road, voltage reduction module can use TLE6389-2 modules.Power supply chip can be used for being powered dual core processor, the power supply
Chip can use TPS65381 basic circuits.
Dual core processor is also connected to sensor by sensing signal processor, and the sensor can be by being depressured mould
Block is powered.In addition, in embodiments of the present invention, the sensor can also be powered by power supply chip.Sensor can be used for pair
The position of first clutch and second clutch is detected in double clutch, produces sensor signal, the sensor signal can
To carry out rectification or filtration treatment by sensing signal processor.The place in addition, sensor can also be powered by sensor
Reason module is connected to power supply chip, and sensor processing module of powering can use TLE4254GA basic circuits.Transducing signal
Processor can use such as resistance, electric capacity basic circuit.
Dual core processor and voltage reduction module can be connected to Key On, wherein, Key On can represent car key sparking portion
Position.Key On are connected to dual core processor by diode.
One end of CAN transceiver can be connected to dual core processor, and the other end can be connected to electronic control unit.Its
In, CAN transceiver can use TJA1043 basic circuits.CAN transceiver can receive the control command control of dual core processor
The action of electronic control unit, CAN transceiver can also receive the judgement signal of electronic control unit, be driven by controlled motor
Module controls double clutch motor action, so as to control the rotating of double clutch, rotating speed and electric current etc..
In embodiments of the present invention, after effective order is received, dual core processor can be according to clutch position and electricity
The electric current of machine, and by setting the forward or reverse and PWM duty cycle value of motor, adjust the state of double clutch.
Preferably, in embodiments of the present invention, motor drive module can include the first motor drive module and the second electricity
Machine drive module, wherein, the first motor drive module and the second motor drive module can be identical module.With the first motor
Exemplified by drive module, as shown in figure 3, the first motor drive module can include：It is pre- to drive chip 302, H bridges 304 and current monitoring
Module 306.Wherein, the pre- input for driving chip 302 can be connected with dual core processor；The input of H bridges 304 can be with
The pre- output end for driving chip 302 is connected；And current monitoring module 306, the input of current monitoring module 306 can be with H
Bridge 304 is connected, for carrying out fault diagnosis to H bridges 304.
Specifically, the pre- first end for driving chip 302 is connected to dual core processor, its second end and three-terminal link to H bridges
304, wherein, first end is input, and the second end and the 3rd end are output end.The pre- chip 302 that drives can be used
A3941 chips.
Specifically, because H bridges can include NMOS1, NMOS2, NMOS3 and NMOS4, therefore the second of pre- drive chip 302
End can be connected to NMOS1 and NMOS3 grid, and pre- the 3rd end for driving chip 302 can be connected to NMOS2 and NMOS4 grid
Pole.H bridges 304 can also include diode 1, diode 2, diode 3 and diode 4, wherein, diode 1, diode 2, two poles
Pipe 3 and diode 4 can be connected between NMOS1, NMOS2, NMOS3 and NMOS4 drain electrode and source electrode, and are owned
The negative pole of diode is connected with the drain electrode of corresponding NMOS tube, and the source electrode of the positive pole of all diodes and corresponding NMOS tube
It is connected.Wherein, all diodes are fly-wheel diode.
The first end of current monitoring module 306 is connected to dual core processor, and its second end is connected to resistance R1 two ends, its
Three-terminal link at resistance R2 two ends, wherein, first end is output end, and the second end and the 3rd end are input.The electric current is supervised
Module 306 is surveyed to can be used for detecting electric current, and by detecting that the size of electric current judges that execution unit whether there is failure.Its
In, R1 is also connected with R2 one end with dual core processor, and the R1 other end is connected with NMOS1 drain electrode, and R2's is another
One end is connected with NMOS2 drain electrode.NMOS3 and NMOS4 source grounding.
Current monitoring module can be the motor load observation circuit shown in Fig. 4.Wherein, A inputs are connected in H bridges
NMOS1 drain electrode, B inputs are connected to the drain electrode of NMOS2 in H bridges.V0 output ends are connected to dual core processor.Current monitoring mould
Block includes LTC6104 chips and LTC6654 chips, two 10m Ω resistance (first resistor and second resistance), two 249 Ω
Resistance (3rd resistor and the 4th resistance), 4.99k Ω resistance, 0.1 μ F electric capacity and a 1 μ F electric capacity.
Wherein, the 4 pins ground connection of LTC6104 chips, its 2 pin is connected to V0 output ends, and 5,8 pins are respectively connecting to first resistor
First end and second resistance first end, 6,7 pins be respectively connecting to 3rd resistor first end and the 4th resistance
One end, and the second end of first resistor is connected with the second end of 3rd resistor, the second end and the 4th resistance of second resistance
The second end be connected, V1 is connected between first resistor and 3rd resistor, and V1 be additionally attached to second resistance and the 4th electricity
Between resistance.The pin 1,2 of LTC6654 chips is grounded, and 4.99k Ω resistance is connected to the pin 6 and V0 of LTC6654 chips
Between output end, in addition, the pin 6 of LTC6654 chips is additionally coupled to the first end of 1 μ F electric capacity, and the of 1 μ F electric capacity
Two ends are grounded, and the pin 4 of LTC6654 chips is connected to V2, and one end of 0.1 μ F electric capacity is connected to LTC6654 chips
Between pin 4 and V2, the other end ground connection of 0.1 μ F electric capacity.It should be noted that V1 magnitude of voltage can be in 8V to 60V
Between magnitude of voltage, V2 magnitude of voltage can be the magnitude of voltage between 3V to 18V.
Acted it should be noted that driving chip in advance by H bridge driving clutch motors M, wherein, the one of clutch motor M
End is connected between NMOS1 source electrode and NMOS3 drain electrode, and its other end is connected to the drain electrode of NMOS2 source electrode and NMOS4
Between.
It should be noted that in embodiments of the present invention, H bridges by NMOS tube and fly-wheel diode except that can build it
Outside, its MOSFET module that can also be integrated diode, or it can also be H bridge integrated packages.
Current monitoring module is used for the malfunction for detecting H bridges.Specifically, the I detected when current monitoring module is excessive
When, it can be determined that go out H bridges and there is over current fault, or may determine that H bridges have short trouble.
The pre- chip that drives can control clutch motor M operating state by controlling H bridges.For example, it is defeated to drive chip in advance
When going out larger PWM, clutch motor M rotating speed is larger.For another example in advance drive chip can by control H bridges NMOS1 and
NMOS3 is turned on and NMOS2 and NMOS4 turns off to control clutch motor M to rotate forward；Pre- drive chip can also be by controlling H bridges
NMOS1 and NMOS3 shut-off and NMOS2 and NMOS4 conducting come control clutch motor M invert.
It should be noted that in embodiments of the present invention, the two of H bridges can be detected simultaneously by a current monitoring module
Road electric current, compared with H Qiao Mei roads electric current needs each independent current monitoring module to carry out detection, a current monitoring mould
Block being connected by 1 AD pin and dual core processor, reached the effect for the AD pin resources for saving dual core processor
Really.
In embodiments of the present invention, using double-core lock-step MCU processor chips, the chip at least has 1 CAN module,
Clutch motor current monitoring processing mode is used to load, when carrying out load faulty processing, failure and load shape will be performed
State is judged to MCU.
The embodiments of the invention provide a kind of double clutch controller for electric consumption based on electric motor actuator and control method,
In the embodiment of the present invention, separation and the Engagement Control of two clutches are realized respectively by two actuating motors, actuating motor
Control to realize by the way of chip and H bridges is driven in advance, bus during by using current monitoring chip to motor positive and inverse
Electric current is sampled in flash, realize single-chip monitoring double-current and provide two-way single output reflection current value, it is to avoid ground
Line reduces PCB cloth plate suqare and system cost of implementation while interference.
In embodiments of the present invention, controller system employs the asynchronous LOCKSTEP processors of double-core, due to being set in chip
Timing, the physical arrangement of double-core is not quite similar, and same logic can be gone to realize by different combinational circuits, and installation site is different
Structure, eliminates double-core with the common cause failure being integrated on a DIE, simultaneously as SBC chips are to MCU chip to greatest extent
Continuous question and answer processing is carried out, the common cause failure of MCU clocks and power supply is reduce further, improves system reliability.
In embodiments of the present invention, although employ dual core processor chip, but because the program that each core is run is identical,
Therefore compared to traditional dual chip scheme, the embodiment of the present invention only needs to be familiar with a processor, and software need not be to place
The transient fault of reason device internal hardware accounts for (hardware itself can compare result), reduces the difficulty of software development.By
It is identical in the software of each LAN, although to have two CAN networks, but CAN network can use same agreement, reduce
System realizes difficulty.Due to having carried out fault diagnosis and condition adjudgement to execution unit and load unit, have to load faulty
Good monitoring degree, carries out specific aim processing, effectively reduction thrashing risk accordingly.Because controller use only a main core
Piece MCU, compared with dual chip processor system, controller system of the invention has relatively low cost, in summary, the present invention
The double clutch controller for electric consumption framework of embodiment is simple, and security reaction is rapid, and cost is low, is adapted to answering for security control field
With.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of double clutch electric control gear, for being controlled to double clutch, the double clutch includes first clutch
And second clutch, it is characterised in that the double clutch electric control gear includes：
Sensor, is monitored for the position to the first clutch and the second clutch, obtains sensor signal；
Sensing signal processor, the input of the sensing signal processor is connected with the sensor, described for obtaining
Sensor signal, and the sensor signal is handled, the sensor signal after being handled；
Dual core processor, is connected with the output end of the sensing signal processor, for according to the sensor after the processing
Signal carries out fault diagnosis to the double clutch；And
Execution unit, is connected with the dual core processor, the shape for controlling the double clutch according to fault diagnosis result
State；
Wherein, the dual core processor judges that itself whether there is failure in the following manner：
The dual core processor is compared to the implementing result of double-core, obtains comparative result；And
The dual core processor judges that the dual core processor whether there is failure according to the comparative result.
2. double clutch electric control gear according to claim 1, it is characterised in that the double clutch electric control gear includes
System base chip and microcontroller process chip, wherein, the dual core processor is arranged on the microcontroller process chip
On, the system base chip is used to carry out question and answer processing to the microcontroller process chip in the following manner：
The system base chip sends request signal to the microcontroller process chip；
The system base chip receives the answer signal that the microcontroller process chip is returned；And
The system base chip judges whether the answer signal is correct answer signal,
Wherein, the system base chip is if it is judged that the answer signal is the correct answer signal, then described double
Core processor carries out fault diagnosis according to the sensor signal after the processing to the double clutch；And the system-based
Chip is if it is judged that the answer signal is the answer signal of mistake, then after the dual core processor is not according to the processing
Sensor signal carries out fault diagnosis to the double clutch.
3. double clutch electric control gear according to claim 1, it is characterised in that the dual core processor includes：First
Core processor and the second core processor, wherein, first core processor and second core processor are the place mutually backed up
Manage device.
4. double clutch electric control gear according to claim 1, it is characterised in that also include：
Power supply chip, is connected with the dual core processor, for being powered to the dual core processor；And
Voltage reduction module, one end is connected with external power source, and the other end is connected with the power supply chip, for the external electrical
The voltage in source carries out decompression processing, obtains the voltage needed for the power supply chip.
5. double clutch electric control gear according to claim 1, it is characterised in that also include：CAN transceiver, it is and described
Dual core processor is connected, and order is performed for receiving clutch, wherein, the dual core processor is used to receive based on the CAN
The clutch that hair device is received performs the state that the order control execution unit adjusts the double clutch.
6. double clutch electric control gear according to claim 1, it is characterised in that pre- drive is provided with the execution unit
Chip, the dual core processor is additionally operable to carry out fault diagnosis and condition adjudgement to the execution unit in the following manner：
The dual core processor obtains the pre- voltage status for driving chip；And
The dual core processor carries out fault diagnosis and condition adjudgement according to the voltage status to the execution unit.
7. double clutch electric control gear according to claim 1, it is characterised in that the execution unit includes：
First motor drive module, for being connected to the first clutch；And
Second motor drive module, for being connected to the second clutch.
8. double clutch electric control gear according to claim 7, it is characterised in that the first motor drive module bag
Include：
Pre- to drive chip, the pre- input for driving chip is connected with the dual core processor；
H bridges, the input of the H bridges is connected with the pre- output end for driving chip, wherein, the H bridges include the first H bridge arms
With the 2nd H bridge arms；And
Current monitoring module, the input of the current monitoring module is connected with the H bridges,
Wherein, the current monitoring module is used to carry out fault diagnosis to the H bridges in the following manner：
The current monitoring module obtains the electric current of the H bridges, wherein, the electric currents of the H bridges includes the first H bridge arm currents and the
Two H bridge arm currents；And
The current monitoring module carries out fault diagnosis according to the electric current of the H bridges of acquisition to the H bridges.
9. double clutch electric control gear according to claim 1, it is characterised in that the dual core processor is connected to load
Unit, and the dual core processor is additionally operable to carry out fault diagnosis to the load unit in the following manner and state is sentenced
It is disconnected：
The dual core processor obtains the liquid level information of the load unit；And
The dual core processor carries out fault diagnosis and condition adjudgement according to the liquid level information of acquisition to the load unit,
Wherein, failure of the dual core processor when monitoring that the load unit breaks down to generation carries out book office
Reason.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222865.2A CN104832563B (en) | 2014-05-23 | 2014-05-23 | Double clutch electric control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222865.2A CN104832563B (en) | 2014-05-23 | 2014-05-23 | Double clutch electric control gear |
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| Publication Number | Publication Date |
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| CN104832563A CN104832563A (en) | 2015-08-12 |
| CN104832563B true CN104832563B (en) | 2017-11-03 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745743B (en) * | 2017-09-30 | 2020-07-07 | 成都雅骏新能源汽车科技股份有限公司 | Electric power steering control system based on function safety |
| CN111255824B (en) * | 2018-11-30 | 2021-07-20 | 宝沃汽车（中国）有限公司 | Control method and device for clutch separation of hybrid vehicle and hybrid vehicle |
| CN111384876A (en) * | 2018-12-27 | 2020-07-07 | 沈阳新松机器人自动化股份有限公司 | Dual-axis motor driving system and method based on dual-core processing |
| CN116643935B (en) * | 2023-07-21 | 2023-09-26 | 天津国芯科技有限公司 | Dual-core lockstep chip capable of configuring delay time |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116370B (en) * | 2010-09-10 | 2014-04-16 | 浙江吉利汽车研究院有限公司 | Double-clutch automatic transmission controller |
| CN102022523B (en) * | 2010-12-15 | 2013-06-26 | 同济大学 | Electrical control unit and control method of automatic transmission |
| CN102619970B (en) * | 2011-01-28 | 2015-03-04 | 同济大学 | Electronic control unit for dry-type 5-speed-grade double clutch transmission and application thereof |
| US8634997B2 (en) * | 2011-04-29 | 2014-01-21 | GM Global Technology Operations LLC | Direct clutch control for dual clutch transmissions |
| CN102350989A (en) * | 2011-07-26 | 2012-02-15 | 浙江吉利汽车研究院有限公司 | Combined launch control device for vehicle double clutch transmission |
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