CN202583322U - Electric vehicle motor rotor electrical angle detection circuit - Google Patents
Electric vehicle motor rotor electrical angle detection circuit Download PDFInfo
- Publication number
- CN202583322U CN202583322U CN 201220150416 CN201220150416U CN202583322U CN 202583322 U CN202583322 U CN 202583322U CN 201220150416 CN201220150416 CN 201220150416 CN 201220150416 U CN201220150416 U CN 201220150416U CN 202583322 U CN202583322 U CN 202583322U
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- China
- Prior art keywords
- amplifier
- resistance
- electric vehicle
- electrical angle
- motor rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model is applicable to the field of an electric vehicle and provides an electric vehicle motor rotor electrical angle detection circuit. In the circuit, one end of a phase current sampling resistor J16 is connected with an S electrode of any under phase bridge MOS tube and one end of a resistor R1, the other end of J16 is connected with a total current signal and one end of a total current sampling resistor J21, the other end of J21 is grounded, the other end of R1 is connected with a same direction input end of an amplifier, the same direction input end of the amplifier is connected with a voltage signal through R2 and is also connected with one end of a capacitor C1, the other end of C1 is connected with one end of a resistor R3, the other end of R3 is connected with one end of a resistor R4 and the same direction input end of the amplifier, the other end of the resistor R4 is connected with an output end of the amplifier, the output end of the amplifier is connected with an output end of the controller, and the output end of the amplifier is grounded through a capacitor C2. A technical scheme provided by the utility model has an advantage of detecting a motor rotor electrical angle.
Description
Technical field
The utility model belongs to the electric vehicle field, relates in particular to a kind of electric vehicle electrical angle of motor rotor detection technique.
Background technology
Universal day by day along with electric vehicle; The producer that produces motor is also more and more; Each motor producer is because the difference of technical standard and production technology, causes on the market otherness of motor bigger, and controller can't be accomplished wildcard when the different motor of coupling; Therefore can't bring into play the optimum performance of motor, at present each big controller manufacturer method of most of motor on research wildcard market all.
What electric vehicle in the market adopted is that dc brushless motor provides driving force; And the operation of dc brushless motor must rely on hall position sensor; Because the characteristic the when difference of technical standard, technology and motor operation has determined hall position sensor can not reflect the physical location of motor accurately; Therefore motor can't be accomplished accurate commutation, causes the overall performance of motor to descend, and existing circuit also can't detect the electrical angle detection of rotor.
The utility model content
The purpose of the utility model embodiment is to provide a kind of electric vehicle electrical angle of motor rotor testing circuit, is intended to solve the electrical angle problem that existing technical scheme can't detect rotor.
The utility model also provides a kind of electric vehicle electrical angle of motor rotor testing circuit, and said circuit comprises:
The end of phase current sample resistance J16 is connected with arbitrary end of bridge metal-oxide-semiconductor S level and resistance R 1 that descends mutually of this motor, and the other end of J16 is connected the other end ground connection of J21 with the end of total current signal with total current sample resistance J21;
The other end of resistance R 1 is connected with the input end in the same way of amplifier, and the input end in the same way of amplifier also is connected with voltage signal through R2, and the input end in the same way of amplifier also is connected with an end of capacitor C 1, and the other end of C1 is connected with the total current signal; The other end of C1 also is connected with an end of resistance R 3; The other end of R3 also is connected with an end of resistance R 4 and the direction input end of amplifier; The other end of resistance R 4 is connected with the output terminal of amplifier, and the output terminal of amplifier also is connected with controller, and the output terminal of amplifier is also through capacitor C 2 ground connection.
In the utility model embodiment; The actual angle of the angle of moment driving correspondence and rotor kept synchronously when the technical scheme that the utility model provides can make the phase current zero crossing; And then machine operation is in optimum condition; So said method has accurate commutation, improve the advantage of electric efficiency.
Description of drawings
Fig. 1 is the structural drawing that the utility model embodiment provides a kind of electric vehicle electrical angle of motor rotor testing circuit.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model embodiment also provides a kind of electric vehicle electrical angle of motor rotor testing circuit, and this circuit is as shown in Figure 1, comprising:
Wherein, the end of phase current sample resistance J16 is connected with arbitrary end of bridge metal-oxide-semiconductor S level and resistance R 1 that descends mutually of this motor, and the other end of J16 is connected the other end ground connection of J21 with the end of total current signal with total current sample resistance J21;
The other end of resistance R 1 is connected with the input end in the same way of amplifier 11; The input end in the same way of amplifier 11 also (is preferentially selected the 5V voltage signal through R2 and voltage signal; Voltage signal that can certainly other values) connects; The input end in the same way of amplifier 11 also is connected with an end of capacitor C 1, and the other end of C1 is connected with the total current signal; The other end of C1 also is connected with an end of resistance R 3; The other end of R3 also is connected with an end of resistance R 4 and the direction input end of amplifier 11; The other end of resistance R 4 is connected with the output terminal of amplifier 11; The output terminal of amplifier 11 also is connected with controller, and the output terminal of amplifier 11 is also through capacitor C 2 ground connection.
The testing circuit that the utility model provides can detect the electrical angle of rotor.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (1)
1. electric vehicle electrical angle of motor rotor testing circuit is characterized in that said circuit comprises:
The end of phase current sample resistance J16 is connected with arbitrary end of bridge metal-oxide-semiconductor S level and resistance R 1 that descends mutually of this motor, and the other end of J16 is connected the other end ground connection of J21 with the end of total current signal with total current sample resistance J21;
The other end of resistance R 1 is connected with the input end in the same way of amplifier, and the input end in the same way of amplifier also is connected with voltage signal through R2, and the input end in the same way of amplifier also is connected with an end of capacitor C 1, and the other end of C1 is connected with the total current signal; The other end of C1 also is connected with an end of resistance R 3; The other end of R3 also is connected with an end of resistance R 4 and the direction input end of amplifier; The other end of resistance R 4 is connected with the output terminal of amplifier, and the output terminal of amplifier also is connected with controller, and the output terminal of amplifier is also through capacitor C 2 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220150416 CN202583322U (en) | 2012-04-11 | 2012-04-11 | Electric vehicle motor rotor electrical angle detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220150416 CN202583322U (en) | 2012-04-11 | 2012-04-11 | Electric vehicle motor rotor electrical angle detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583322U true CN202583322U (en) | 2012-12-05 |
Family
ID=47252723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220150416 Withdrawn - After Issue CN202583322U (en) | 2012-04-11 | 2012-04-11 | Electric vehicle motor rotor electrical angle detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368476A (en) * | 2012-04-11 | 2013-10-23 | 广东高标电子科技有限公司 | Motor driving method and detection circuit for electric means of transportation |
-
2012
- 2012-04-11 CN CN 201220150416 patent/CN202583322U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368476A (en) * | 2012-04-11 | 2013-10-23 | 广东高标电子科技有限公司 | Motor driving method and detection circuit for electric means of transportation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG GOBAO ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN GAOBIAO ELECTRONIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Industrial Road, Songshan Lake high tech Industrial Development Zone of Guangdong Province, Dongguan City, No. 3, 523000 Patentee after: Guangdong Gobao Electronic Technology Co., Ltd. Address before: Villageroad Industrial Zone A4, Longgang District of Shenzhen City, Guangdong province 518000 2 floor Patentee before: Shenzhen Gaobiao Electronic Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20170510 |