CN208073729U - A kind of electronic water pump for automobile based on switched reluctance machines - Google Patents
A kind of electronic water pump for automobile based on switched reluctance machines Download PDFInfo
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- CN208073729U CN208073729U CN201820552909.1U CN201820552909U CN208073729U CN 208073729 U CN208073729 U CN 208073729U CN 201820552909 U CN201820552909 U CN 201820552909U CN 208073729 U CN208073729 U CN 208073729U
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Abstract
The utility model discloses a kind of electronic water pump for automobile based on switched reluctance machines, including：Central processing module, driving circuit, power conversion circuit, driving motor, current sensor, position sensor, driving motor is that switched reluctance machines include stator and rotor, the head end of the winding of the stator is connected with the anode of vehicle power supply, the end of the winding of the stator is connected with the second input terminal of power conversion circuit, and the center driving of the rotor connects impeller.The utility model uses driving motor of the switched reluctance machines as electronic pump, simplifies the structure of electronic water pump for automobile, effectively improves the reliability during its use.
Description
Technical field
The utility model belongs to technical field of automobile parts, and in particular to a kind of automobile electricity based on switched reluctance machines
Sub- water pump.
Background technology
The support dynamics of new-energy automobile is increased with the development and country of new-energy automobile, more and more pure electric vehicles
Automobile puts goods on the market, and the heat dissipation of electronic power components and motor is required for being cooled down, however traditional mechanical water pump is not
It is conveniently used in pure electric automobile, so electronic water pump for automobile is widely used, and there are extraordinary market prospects.
Authorization Notice No. CN103452858B discloses a kind of automotive electronics cooling water pump, including shell, motor shaft, stator and
Set on the rotor of stator hollow cavity, stator is set to case inside wall, and aforementioned motor axis is axially set in the inner cavity of stator and energy
Rotation, the impeller are located in the runner between water inlet port and water outlet port, and one is equipped in the shell can drive rotor to turn
Dynamic control controller, the injection molding of the rotor and impeller are formed as one a moulding, the axially hollow formation of the moulding with
The through-hole of motor shaft assembly.The structure is disadvantageous in that：Electronic water pump selects magneto as driving motor, structure
Complexity be bound to cause high cost, and high failure rate, service life are shorter.
For switched reluctance machines as a kind of novel motor, its structure will be simple than other any type motor,
It has the following advantages：
（1）Electric machine structure is simple, suitable for reliability service under severe conditions.The rotor of switched reluctance machines is not slided
Ring, winding and permanent magnet etc., have it is simple in structure it is firm, reliability is high, at low cost, efficient, the warm low many advantages of liter,
Suitable for various severe, high temperature even strong vibration environment, it is highly suitable as driving motor；
（2）Torque direction is unrelated with the winding current direction of stator, it is only necessary to unidirectional current excitation, therefore can reduce
The derailing switch number of packages of power inverter reduces system cost；
（3）Each switching device in driving system for switched reluctance directly and windings in series, fundamentally avoids
Shoot through phenomenon not only reduces cost, but also have high reliability to simplifying the requirement of control and protection unit.From
It is seen in control structure, each phase winding works independently from each other, so system can be with phase-deficient operation, fault-tolerant ability is strong；
（4）Controllable parameter is more, good speed adjustment features.There are four the major parameters of switched reluctance machines speed governing:Turn-on angle, shutdown
Angle, phase current magnitude and phase winding voltage.Controllable parameter is more, it is meant that control is flexible and convenient.Using different control methods and ginseng
Numerical value can not only make system work in optimum state (maximum, efficiency is most high as contributed), and be allowed to realize a variety of different
Function and specific characteristic curve such as make motor that there is identical four quadrant running (to rotate forward, invert, is electronic, braking) energy
Power, and the load capacity curve with high starting torque and series-wound motor；
（5）Height output and high efficiency are all had in wide rotating speed and power bracket, is suitable for frequent start-stop and positive and negative
Transhipment row.
Utility model content
To solve the above problems, the utility model proposes a kind of electronic water pump for automobile based on switched reluctance machines, use
Driving motor of the switched reluctance machines as electronic pump, simplifies the structure of electronic water pump for automobile, effectively improves it and uses process
In reliability.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of electronic water pump for automobile based on switched reluctance machines, the electronic water pump include：
Central processing module, the central processing module include first input end, the first output end, the second input terminal,
Two output ends and third input terminal, the output end of entire car controller ECU are connected with the first input end of central processing module, institute
The first output end for stating central processing module is connected with the input terminal of entire car controller ECU；
Driving circuit, the second output terminal of the central processing module are connected with the input terminal of driving circuit；
Power conversion circuit, the power conversion circuit include output end, first input end and the second input terminal, the drive
The output end of dynamic circuit is connected with the first input end of power conversion circuit；
Driving motor, the driving motor are switched reluctance machines, and the switched reluctance machines include stator and rotor, institute
The head end for stating the winding of stator is connected with the anode of vehicle power supply, the end of the winding of the stator and power conversion circuit
Second input terminal is connected, and the center driving of the rotor connects impeller；
Current sensor, the current sensor include input terminal, the first output end and second output terminal, and the electric current passes
The input terminal of sensor is connected with the output end of power conversion circuit, the first output end of the current sensor and vehicle power supply
Cathode is connected, and the second output terminal of the current sensor is connected with the second input terminal of central processing module；
The position sensor of rotor position information for detection switch reluctance motor, the output end of the position sensor
It is connected with the third input terminal of central processing module.
Further, the power conversion circuit includes multiple asymmetric bridge circuits.
Further, the position sensor is made of photoelectric encoder.
Further, the central processing module passes through PWM communication bus, LIN communication bus or CAN communication bus and vapour
The entire car controller ECU connections of vehicle.
Further, it includes A phase windings coil, B phase windings that the switched reluctance machines, which are the winding three-phase motor of stator,
Coil and C phase winding coils, the power conversion circuit include positive DC busbar, negative DC busbar, capacitance C1, A phase work(
The anode connection of rate translation circuit, B phases power conversion circuit and C phase power conversion circuits, positive DC busbar and vehicle power supply,
The input terminal of negative DC busbar and current sensor connect, capacitance C1 be DC bus storage capacitor, capacitance C1 anode with
Positive DC busbar connects, and the cathode of capacitance C1 is connect with negative DC busbar；A phase power conversion circuits include switching device
The drain electrode of VT1, VT2 and diode D1, D2, switching device VT1 are connect with positive DC busbar, the source electrode of switching device VT1
It is connect respectively with the cathode of the head end of stator A phase winding coils, diode D1, anode and the negative DC busbar of diode D1 connect
It connects, the drain electrode stator of switching device VT2 is connect with the anode of the end of A phase winding coils, diode D2 respectively, diode D2's
Cathode is connect with positive DC busbar；Diode D1 and diode D2 rises during switching device VT1 and switching device VT2 shutdowns
Afterflow acts on, and the electromagnetic energy of A phase winding coils is returned to vehicle power supply；B phase power conversion circuits include switching device
The drain electrode of VT3, VT4 and diode D3, D4, switching device VT3 are connect with positive DC busbar, the source electrode of switching device VT3
It is connect respectively with the cathode of the head end of stator B phase winding coils, diode D3, anode and the negative DC busbar of diode D3 connect
It connects, the drain electrode stator of switching device VT4 is connect with the anode of the end of B phase winding coils, diode D4 respectively, diode D4's
Cathode is connect with positive DC busbar；Diode D3 and diode D4 rises during switching device VT3 and switching device VT4 shutdowns
Afterflow acts on, and the electromagnetic energy of B phase winding coils is returned to vehicle power supply；C phase power conversion circuits include switching device
The drain electrode of VT5, VT6 and diode D5, D6, switching device VT5 are connect with positive DC busbar, the source electrode of switching device VT5
It is connect respectively with the cathode of the head end of stator C phase winding coils, diode D5, anode and the negative DC busbar of diode D5 connect
It connects, the drain electrode stator of switching device VT6 is connect with the anode of the end of C phase winding coils, diode D6 respectively, diode D6's
Cathode is connect with positive DC busbar；Diode D5 and diode D6 rises during switching device VT5 and switching device VT6 shutdowns
Afterflow acts on, and the electromagnetic energy of C phase winding coils is returned to vehicle power supply.
Further, described switching device VT1, VT2, VT3, VT4, VT5, VT6 are N-channel field-effect tube and grid and drive
Dynamic circuit connection.
The beneficial effects of the utility model are：
The operation principle of the utility model is as follows：First, central processing module receives entire car controller by communication bus
The instruction that ECU is sent out realizes the rotating speed control to switched reluctance machines by speed closed loop control algorithm, meanwhile, central processing
The running state information and failure diagnosis information of electronic water pump are fed back to entire car controller ECU by module；Position sensor detects
The rotor position information of switched reluctance machines, passes to central processing module, and Current sensors sense switch reluctance motor is determined
The winding current of son, passes to central processing module, central processing module controls power conversion circuit by driving circuit
System is realized and is controlled the commutation control and current amplitude of stator current, changes the size of switched reluctance machines electromagnetic torque in real time,
To realize the adjusting of switched reluctance machines rotating speed, and then realize the adjusting control to electronic water pump flow.
The utility model proposes the electronic water pump based on switched reluctance machines, electric machine structure is simple, suitable in severe item
Reliability service under part, it is ensured that electronic water pump reliably works, and is all had in wide rotating speed and power bracket high defeated
Go out and high efficiency.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Fig. 2 is the circuit diagram of the utility model power conversion circuit.
Figure label：1- central processing modules, 2-ECU, 3- driving circuits, 4- power conversion circuits, 5- stators, 6- turn
Son, 7- vehicle power supplies, 8- impellers, 9- current sensors, 10- position sensors.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, the utility model includes：
Central processing module 1, using the ARM STM32F103 conducts of ARM controller or dsp controller, such as ST companies
Main control chip, the central processing module include first input end, the first output end, the second input terminal, second output terminal and
The output end of three input terminals, entire car controller ECU2 is connected by CAN communication bus with the first input end of central processing module 1
It connects, the first output end of central processing module 1 is connected by CAN communication bus with the input terminal of entire car controller ECU2；With
In the rotor position information for the switched reluctance machines for receiving position sensor output, realize to switched reluctance machines operating current
Commutation control；The winding current signal for receiving the stator of the switched reluctance machines of current sensor output, is realized to stator current
Control；It is connect with the entire car controller ECU of automobile, realizes and work(is fed back with fault diagnosis to the rotating speed control of switched reluctance machines
Energy；
Driving circuit 3 is used for driving power translation circuit 4, second output terminal and the driving circuit 3 of central processing module 1
Input terminal be connected；
Power conversion circuit 4, the winding current for controlling Stators for Switched Reluctance Motors being opened and turning off, the power
Translation circuit includes output end, first input end and the second input terminal, output end and the power conversion circuit 4 of driving circuit 3
First input end is connected；
Driving motor, driving motor are that switched reluctance machines include stator 5 and rotor 6, the head end and vehicle of the winding of stator 5
The anode for carrying power supply 7 is connected, and the end of the winding of stator 5 is connected with the second input terminal of power conversion circuit 4, rotor 6
Center driving connect impeller 8；
The model of current sensor 9, use is Hall current sensor ACS712, the winding electricity of detection switch reluctance motor
The size of stream, the current sensor include input terminal, the first output end and second output terminal, the input terminal of current sensor with
The output end of power conversion circuit 3 is connected, and 9 first output end of current sensor is connected with the cathode of vehicle power supply 7, electric current
The second output terminal of sensor 9 is connected with the second input terminal of central processing module 1；
The position sensor 10 of 8 location information of rotor for detection switch reluctance motor, the model specifically used is Europe
Nurse dragon absolute position photoelectric encoder E6C3-A, the output end of position sensor 10 and the third input terminal of central processing module 1
It is connected.
In the present embodiment, switched reluctance machines are 6/4 pole three phase electric machine, and stator is that three-phase windings include A phase winding lines
L1, B phase winding coil L2 and C phase winding coil L3 are enclosed, 2 coil of each winding has pole, shares 3 windings, and rotor there are 4 poles, such as
Shown in Fig. 2, power conversion circuit includes multiple asymmetric bridge circuits, specifically include positive DC busbar, negative DC busbar,
Capacitance C1, A phase power conversion circuit, B phases power conversion circuit and C phase power conversion circuits, the derailing switch in asymmetric electric bridge
Part is made of N-channel field-effect tube, and the anode of positive DC busbar and vehicle power supply connects, the negative DC busbar and electric current
One end of sensor connects, and capacitance C1 is DC bus storage capacitor, and the anode of capacitance C1 is connect with positive DC busbar, capacitance
The cathode of C1 is connect with negative DC busbar；
A phase power conversion circuits include switching device VT1, VT2 and diode D1, D2, diode D1 and diode D2
Play afterflow during switching device VT1 and switching device VT2 shutdowns, the electromagnetic energy of A phase winding coils is returned to vehicle
Carry power supply；The drain electrode of switching device VT1 is connect with positive DC busbar, the source electrode of switching device VT1 respectively with stator A phase windings
The cathode connection of the head end, diode D1 of coil, the anode of diode D1 are connect with negative DC busbar, switching device VT2's
Drain electrode stator is connect with the anode of the end of A phase winding coils, diode D2 respectively, and the cathode and positive DC of diode D2 is female
Line connects；
B phase power conversion circuits include switching device VT3, VT4 and diode D3, D4, diode D3 and diode D4
Play afterflow during switching device VT3 and switching device VT4 shutdowns, the electromagnetic energy of B phase winding coils is returned to vehicle
Carry power supply；The drain electrode of switching device VT3 is connect with positive DC busbar, the source electrode of switching device VT3 respectively with stator B phase windings
The cathode connection of the head end, diode D3 of coil, the anode of diode D3 are connect with negative DC busbar, switching device VT4's
Drain electrode stator is connect with the anode of the end of B phase winding coils, diode D4 respectively, and the cathode and positive DC of diode D4 is female
Line connects；
C phase power conversion circuits include switching device VT5, VT6 and diode D5, D6, diode D5 and diode D6
Play afterflow during switching device VT5 and switching device VT6 shutdowns, the electromagnetic energy of C phase winding coils is returned to vehicle
Carry power supply；The drain electrode of switching device VT5 is connect with positive DC busbar, the source electrode of switching device VT5 respectively with stator C phase windings
The cathode connection of the head end, diode D5 of coil, the anode of diode D5 are connect with negative DC busbar, switching device VT6's
Drain electrode stator is connect with the anode of the end of C phase winding coils, diode D6 respectively, and the cathode and positive DC of diode D6 is female
Line connects；The grid of switching device VT1, VT2, VT3, VT4, VT5, VT6 are connect with driving circuit.
The utility model proposes the electronic water pump based on switched reluctance machines, electric machine structure is simple, suitable in severe item
Reliability service under part, it is ensured that electronic water pump reliably works, and is all had in wide rotating speed and power bracket high defeated
Go out and high efficiency.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme should all cover in the right of the utility model.
Claims (6)
1. a kind of electronic water pump for automobile based on switched reluctance machines, it is characterised in that：The electronic water pump includes：
Central processing module, the central processing module includes first input end, the first output end, the second input terminal, second defeated
Outlet and third input terminal, the output end of entire car controller ECU is connected with the first input end of central processing module, in described
First output end of centre processing module is connected with the input terminal of entire car controller ECU；
Driving circuit, the second output terminal of the central processing module are connected with the input terminal of driving circuit；
Power conversion circuit, the power conversion circuit include output end, first input end and the second input terminal, the driving electricity
The output end on road is connected with the first input end of power conversion circuit；
Driving motor, the driving motor are switched reluctance machines, and the switched reluctance machines include stator and rotor, described fixed
The head end of winding of son is connected with the anode of vehicle power supply, the end of the winding of the stator and the second of power conversion circuit
Input terminal is connected, and the center driving of the rotor connects impeller；
Current sensor, the current sensor include input terminal, the first output end and second output terminal, the current sensor
Input terminal be connected with the output end of power conversion circuit, the cathode of the current sensor the first output end and vehicle power supply
It is connected, the second output terminal of the current sensor is connected with the second input terminal of central processing module；
The position sensor of rotor position information for detection switch reluctance motor, the output end of the position sensor is in
The third input terminal of centre processing module is connected.
2. a kind of electronic water pump for automobile based on switched reluctance machines according to claim 1, it is characterised in that：The work(
Rate translation circuit includes multiple asymmetric bridge circuits.
3. a kind of electronic water pump for automobile based on switched reluctance machines according to claim 1, it is characterised in that：Institute's rheme
Sensor is set to be made of photoelectric encoder.
4. a kind of electronic water pump for automobile based on switched reluctance machines according to claim 1, it is characterised in that：In described
Entreat entire car controller ECU connection of the processing module by PWM communication bus, LIN communication bus or CAN communication bus and automobile.
5. a kind of electronic water pump for automobile based on switched reluctance machines according to claim 1, it is characterised in that：It is described to open
It includes A phase windings coil, B phase windings coil and C phase winding coils, the work(to close the winding three-phase motor that reluctance motor is stator
Rate translation circuit includes positive DC busbar, negative DC busbar, capacitance C1, A phase power conversion circuit, B phases power conversion electricity
The anode connection of road and C phase power conversion circuits, positive DC busbar and vehicle power supply, negative DC busbar and current sensor
Input terminal be connected, capacitance C1 be DC bus storage capacitor, capacitance C1 anode connect with positive DC busbar, capacitance C1
Cathode connect with negative DC busbar；The A phases power conversion circuit include switching device VT1, VT2 and diode D1,
The drain electrode of D2, switching device VT1 are connect with positive DC busbar, the source electrode of switching device VT1 respectively with stator A phase winding coils
Head end, diode D1 cathode connection, the anode of diode D1 connect with negative DC busbar, the drain electrode of switching device VT2
Stator is connect with the anode of the end of A phase winding coils, diode D2 respectively, and cathode and the positive DC busbar of diode D2 connect
It connects；The B phases power conversion circuit includes switching device VT3, VT4 and diode D3, D4, the drain electrode of switching device VT3 with
Positive DC busbar connects, the source electrode of switching device VT3 respectively with the head end of stator B phase winding coils, the cathode of diode D3
Connection, the anode of diode D3 connect with negative DC busbar, the drain electrode stator of switching device VT4 respectively with B phase winding coils
End, diode D4 anode connection, the cathode of diode D4 connect with positive DC busbar；The C phases power conversion electricity
Road includes switching device VT5, VT6 and diode D5, D6, and the drain electrode of switching device VT5 is connect with positive DC busbar, switch
The source electrode of device VT5 is connect with the cathode of the head end of stator C phase winding coils, diode D5 respectively, the anode of diode D5 with
Negative DC busbar connects, the drain electrode stator of switching device VT6 respectively with the end of C phase winding coils, the anode of diode D6
Connection, the cathode of diode D6 are connect with positive DC busbar；The grid of switching device VT1, VT2, VT3, VT4, VT5, VT6 with
Driving circuit connects.
6. a kind of electronic water pump for automobile based on switched reluctance machines according to claim 5, it is characterised in that：It is described to open
It is N-channel field-effect tube to close device VT1, VT2, VT3, VT4, VT5, VT6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820552909.1U CN208073729U (en) | 2018-04-18 | 2018-04-18 | A kind of electronic water pump for automobile based on switched reluctance machines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820552909.1U CN208073729U (en) | 2018-04-18 | 2018-04-18 | A kind of electronic water pump for automobile based on switched reluctance machines |
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| CN208073729U true CN208073729U (en) | 2018-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742908A (en) * | 2018-12-29 | 2019-05-10 | 淄博京科电气有限公司 | A kind of switched reluctance machines for new-energy automobile |
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2018
- 2018-04-18 CN CN201820552909.1U patent/CN208073729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742908A (en) * | 2018-12-29 | 2019-05-10 | 淄博京科电气有限公司 | A kind of switched reluctance machines for new-energy automobile |
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