CN208272880U - Electric machine controller circuit - Google Patents
Electric machine controller circuit Download PDFInfo
- Publication number
- CN208272880U CN208272880U CN201820742969.XU CN201820742969U CN208272880U CN 208272880 U CN208272880 U CN 208272880U CN 201820742969 U CN201820742969 U CN 201820742969U CN 208272880 U CN208272880 U CN 208272880U
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- Prior art keywords
- phase
- bridge arm
- sampling unit
- output terminals
- electromotive force
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- Withdrawn - After Issue
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- 238000005070 sampling Methods 0.000 claims abstract description 57
- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of electric machine controller circuit, it include: positive electrode bus, negative electrode bus, bus capacitor, U phase bridge arm, V phase bridge arm and W phase bridge arm, at least 2 phases are connected separately with the first sampling unit and the second sampling unit in U phase bridge arm, V phase bridge arm and W phase bridge arm, first sampling unit is connected to a terminal in U phase output terminals, V phase output terminals and W phase output terminals, and second sampling unit is connected to a terminal in 2 remaining in U phase output terminals, V phase output terminals and W phase output terminals；The reverse electromotive force output terminal of first sampling unit and the reverse electromotive force output terminal of the second sampling unit are all connected to a processor, this processor is used to calculate the difference of the opposing negative polarity bus counter electromotive force of opposing negative polarity bus counter electromotive force and the second sampling unit from the first sampling unit.The utility model obtains current motor stator winding temperature according to 2 phase back-emf differences, according to the difference of motor stator temperature, corrects the model of magneto, promotes the control performance of motor.
Description
Technical field
The utility model belongs to magneto technical field for electric vehicle more particularly to a kind of electric machine controller circuit.
Background technique
Electric machine controller is the kernel component of electric car, generally has battery supply input terminal on electric machine controller
The connecting terminal of son and connection motor.At different temperatures due to motor, the magnetic field of rotor can change, to influence electricity
Machine control performance, and in the prior art, do not account for influence of the variation to rotor flux of motor temperature.How above-mentioned skill is overcome
Art problem becomes the direction that those skilled in the art make great efforts.
Utility model content
The utility model aim is to provide a kind of electric machine controller circuit, and according to the difference of motor temperature, hardware circuit can
To detect the rotor counter electromotive force of magneto, the model of magneto is corrected, the control performance of motor is promoted.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of electric machine controller circuit, comprising: just
Pole bus, negative electrode bus, bus capacitor, U phase bridge arm, V phase bridge arm and W phase bridge arm, the bus capacitor, U phase bridge arm, V phase bridge
Arm and W phase bridge arm are connected across between positive electrode bus, negative electrode bus respectively；
The U phase bridge arm further comprises bridge arm in U phase, U phase lower bridge arm, a U phase for connecting with motor U phase terminal
Output terminal is located at the junction of bridge arm in U phase, U phase lower bridge arm；
The V phase bridge arm further comprises bridge arm in V phase, V phase lower bridge arm, a V phase for connecting with motor V phase terminal
Output terminal is located at the junction of bridge arm in V phase, V phase lower bridge arm；
The W phase bridge arm further comprises bridge arm in W phase, W phase lower bridge arm, a W phase for connecting with motor W phase terminal
Output terminal is located at the junction of bridge arm in W phase, W phase lower bridge arm, bridge arm in the U phase, U phase lower bridge arm, bridge arm, V phase in V phase
An IGBT module is provided in bridge arm and W phase lower bridge arm in lower bridge arm, W phase；
At least 2 phases are connected separately with the first sampling unit and the second sampling in the U phase bridge arm, V phase bridge arm and W phase bridge arm
Unit, first sampling unit are connected to a terminal in U phase output terminals, V phase output terminals and W phase output terminals,
Second sampling unit is connected to an end in 2 remaining in U phase output terminals, V phase output terminals and W phase output terminals
Son；
First sampling unit and the second sampling unit further comprise concatenated first divider resistance, the second partial pressure
Resistance and the RC branch that by 3rd resistor and capacitor is composed in series in parallel with the second divider resistance, the 3rd resistor and electricity
Contact between appearance is provided with a reverse electromotive force output terminal for output phase to negative electrode bus counter electromotive force；
The reverse electromotive force output terminal of first sampling unit and the reverse electromotive force output end of the second sampling unit
Son is all connected to a processor, this processor is used to calculate opposing negative polarity bus counter electromotive force from the first sampling unit and the
The difference of the opposing negative polarity bus counter electromotive force of two sampling units.
It is as follows that scheme is further improved in above-mentioned technical proposal:
1. in above scheme, first sampling unit is connected to U phase output terminals, the of first sampling unit
Contact between three resistance and capacitor is for exporting U opposing negative polarity bus counter electromotive force.
2. in above scheme, second sampling unit is connected to V phase output terminals, the of second sampling unit
Contact between three resistance and capacitor is for exporting V opposing negative polarity bus counter electromotive force.
3. in above scheme, the IGBT module is composed in parallel by diode and IGBT device.
4. in above scheme, second divider resistance one end opposite with the first divider resistance is connected to negative electrode bus.
5. in above scheme, capacitor one end opposite with 3rd resistor is connected to negative electrode bus in the RC branch.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
The utility model electric machine controller circuit passes through the reverse phase electricity of the first sampling unit in motor operation course
The reverse electromotive force output terminal of kinetic potential output terminal and the second sampling unit is all connected to a processor, this processor is based on
Calculate the opposing negative polarity bus counter electromotive force of opposing negative polarity bus counter electromotive force and the second sampling unit from the first sampling unit
Difference obtain current motor stator winding temperature according to 2 phase back-emf differences, according to the difference of motor stator temperature,
Hardware circuit can detecte the rotor counter electromotive force of magneto, correct the model of magneto, promote the control performance of motor.
Detailed description of the invention
Attached drawing 1 is the utility model electric machine controller circuit partial electrical structural schematic diagram one；
Attached drawing 2 is the utility model electric machine controller circuit partial electrical structural schematic diagram two；
Attached drawing 3 is sampling unit electrical structure schematic diagram in the utility model electric machine controller circuit；
Attached drawing 4 is the partial schematic diagram of the utility model electric machine controller.
In the figures above: 1, positive electrode bus；2, negative electrode bus；3, bus capacitor；4, U phase bridge arm；41, bridge arm in U phase；
42, U phase lower bridge arm；43, U phase output terminals；5, V phase bridge arm；51, bridge arm in V phase；52, V phase lower bridge arm；53, V phase output terminal
Son；6, W phase bridge arm；61, bridge arm in W phase；62, W phase lower bridge arm；63, W phase output terminals；7, the first sampling unit；8, it second adopts
Sample unit；9, the first divider resistance；10, the second divider resistance；11,3rd resistor；12, capacitor；13, reverse electromotive force output end
Son；14, processor.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: a kind of electric machine controller circuit, comprising: positive electrode bus 1, negative electrode bus 2, bus capacitor 3, U phase bridge arm
4, V phase bridge arm 5 and W phase bridge arm 6, the bus capacitor 3, U phase bridge arm 4, V phase bridge arm 5 and W phase bridge arm 6 are connected across anode respectively
Between bus 1, negative electrode bus 2；
The U phase bridge arm 4 further comprises bridge arm 41 in U phase, U phase lower bridge arm 42, and one with motor U phase terminal for connecting
U phase output terminals 43 be located at the junction of bridge arm 41 in U phase, U phase lower bridge arm 42；
The V phase bridge arm 5 further comprises bridge arm 51 in V phase, V phase lower bridge arm 52, and one with motor V phase terminal for connecting
V phase output terminals 53 be located at the junction of bridge arm 51 in V phase, V phase lower bridge arm 52；
The W phase bridge arm 6 further comprises bridge arm 61 in W phase, W phase lower bridge arm 62, and one with motor W phase terminal for connecting
W phase output terminals 63 be located at the junction of bridge arm 61 in W phase, W phase lower bridge arm 62, bridge arm 41, U phase lower bridge arm in the U phase
42, bridge arm 51 in V phase, V phase lower bridge arm 52, be provided with an IGBT module in bridge arm 61 and W phase lower bridge arm 62 in W phase；
At least 2 phases are connected separately with the first sampling unit 7 and second in the U phase bridge arm 4, V phase bridge arm 5 and W phase bridge arm 6
Sampling unit 8, first sampling unit 7 are connected in U phase output terminals 43, V phase output terminals 53 and W phase output terminals 63
A terminal, second sampling unit 8 is connected to U phase output terminals 43, V phase output terminals 53 and W phase output terminals 63
A terminal in middle remaining 2；
First sampling unit 7 and the second sampling unit 8 further comprise concatenated first divider resistance 9, second
Divider resistance 10 and the RC branch that by 3rd resistor 11 and capacitor 12 is composed in series in parallel with the second divider resistance 10, it is described
Contact between 3rd resistor 11 and capacitor 12 is provided with a reverse electromotive force for output phase to negative electrode bus counter electromotive force
Output terminal 13；
The output of the reverse electromotive force of the reverse electromotive force output terminal of first sampling unit 7 and the second sampling unit 8
Terminal is all connected to a processor 14, this processor 14 is anti-electric for calculating the opposing negative polarity bus from the first sampling unit 7
The difference of the opposing negative polarity bus counter electromotive force of kinetic potential and the second sampling unit 8.
Above-mentioned first sampling unit 7 is connected to U phase output terminals 43,11 He of 3rd resistor of first sampling unit 7
Contact between capacitor 12 is for exporting U opposing negative polarity bus counter electromotive force.
Above-mentioned second sampling unit 8 is connected to V phase output terminals 53,11 He of 3rd resistor of second sampling unit 8
Contact between capacitor 12 is for exporting V opposing negative polarity bus counter electromotive force.
Above-mentioned second divider resistance one end opposite with the first divider resistance is connected to negative electrode bus 2.
Capacitor one end opposite with 3rd resistor is connected to negative electrode bus 2 in above-mentioned RC branch.
Motor is in generating state, and bus capacitor is in charged state, and charging current passes through phase output terminals CLU(V),
U(V) bridge U(V in phase) freewheeling diode, bus capacitor it is positive and negative (GNDL), V(U) freewheeling diode of bridge is defeated to V phase under phase
Terminal CLV(U out).See Fig. 1,2.
Sampled voltage signal CLU_AIN, the V phase back-emf CLU of U phase back-emf CLU GNDL negative to bus is to bus
The voltage sampling signal CLV_AIN of negative GNDL is input to the port AD of high pressure MCU.While voltage sampling signal CLU_AIN,
The peak voltage of CLV_AIN is no more than 5V；The power supply of high pressure MCU is born as the negative GNDL of bus.See Fig. 3,4.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (6)
1. a kind of electric machine controller circuit, comprising: positive electrode bus (1), negative electrode bus (2), bus capacitor (3), U phase bridge arm (4),
V phase bridge arm (5) and W phase bridge arm (6), the bus capacitor (3), U phase bridge arm (4), V phase bridge arm (5) and W phase bridge arm (6) are respectively
It is connected across between positive electrode bus (1), negative electrode bus (2)；
The U phase bridge arm (4) further comprises bridge arm (41) in U phase, U phase lower bridge arm (42), and one with motor U phase terminal for connecting
The U phase output terminals (43) connect are located at the junction of bridge arm (41) in U phase, U phase lower bridge arm (42)；
The V phase bridge arm (5) further comprises bridge arm (51) in V phase, V phase lower bridge arm (52), and one with motor V phase terminal for connecting
The V phase output terminals (53) connect are located at the junction of bridge arm (51) in V phase, V phase lower bridge arm (52)；
The W phase bridge arm (6) further comprises bridge arm (61) in W phase, W phase lower bridge arm (62), and one with motor W phase terminal for connecting
The W phase output terminals (63) connect are located at the junction of bridge arm (61) in W phase, W phase lower bridge arm (62), bridge arm (41) in the U phase,
Bridge arm (51) in U phase lower bridge arm (42), V phase, V phase lower bridge arm (52) are all provided in W phase in bridge arm (61) and W phase lower bridge arm (62)
It is equipped with an IGBT module；
It is characterized by: at least 2 phases are connected separately with first and adopt in the U phase bridge arm (4), V phase bridge arm (5) and W phase bridge arm (6)
Sample unit (7) and the second sampling unit (8), first sampling unit (7) are connected to U phase output terminals (43), V phase output terminal
A terminal in sub (53) and W phase output terminals (63), second sampling unit (8) be connected to U phase output terminals (43),
A terminal in V phase output terminals (53) and W phase output terminals (63) in residue 2；
First sampling unit (7) and the second sampling unit (8) further comprise concatenated first divider resistance (9),
It two divider resistances (10) and in parallel with the second divider resistance (10) is composed in series by 3rd resistor (11) and capacitor (12)
RC branch, it is anti-electronic to negative electrode bus for output phase that the contact between the 3rd resistor (11) and capacitor (12) is provided with one
The reverse electromotive force output terminal (13) of gesture；
The reverse electromotive force output of the reverse electromotive force output terminal and the second sampling unit (8) of first sampling unit (7)
Terminal is all connected to a processor (14), this processor (14) is used to calculate the opposing negative polarity from the first sampling unit (7) female
The difference of the opposing negative polarity bus counter electromotive force of line counter electromotive force and the second sampling unit (8).
2. electric machine controller circuit according to claim 1, it is characterised in that: first sampling unit (7) is connected to U
Phase output terminals (43), the contact between the 3rd resistor (11) and capacitor (12) of first sampling unit (7) is for exporting U
Opposing negative polarity bus counter electromotive force.
3. electric machine controller circuit according to claim 1, it is characterised in that: second sampling unit (8) is connected to V
Phase output terminals (53), the contact between the 3rd resistor (11) and capacitor (12) of second sampling unit (8) is for exporting V
Opposing negative polarity bus counter electromotive force.
4. electric machine controller circuit according to claim 1, it is characterised in that: the IGBT module is by diode and IGBT
Device composes in parallel.
5. electric machine controller circuit according to claim 1, it is characterised in that: second divider resistance and the first partial pressure
The opposite one end of resistance is connected to negative electrode bus (2).
6. electric machine controller circuit according to claim 1, it is characterised in that: capacitor and 3rd resistor in the RC branch
Opposite one end is connected to negative electrode bus (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742969.XU CN208272880U (en) | 2018-05-18 | 2018-05-18 | Electric machine controller circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820742969.XU CN208272880U (en) | 2018-05-18 | 2018-05-18 | Electric machine controller circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272880U true CN208272880U (en) | 2018-12-21 |
Family
ID=64681802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820742969.XU Withdrawn - After Issue CN208272880U (en) | 2018-05-18 | 2018-05-18 | Electric machine controller circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274311A (en) * | 2018-05-18 | 2019-01-25 | 巨自动化装备（上海）有限公司 | Electric machine controller circuit |
-
2018
- 2018-05-18 CN CN201820742969.XU patent/CN208272880U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109274311A (en) * | 2018-05-18 | 2019-01-25 | 巨自动化装备（上海）有限公司 | Electric machine controller circuit |
| CN109274311B (en) * | 2018-05-18 | 2023-11-21 | 一巨自动化装备（上海）有限公司 | Motor controller circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181221 Effective date of abandoning: 20231121 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181221 Effective date of abandoning: 20231121 |