CN204836020U - Electric motor car and duplex winding motor control system thereof - Google Patents
Electric motor car and duplex winding motor control system thereof Download PDFInfo
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- CN204836020U CN204836020U CN201520550268.2U CN201520550268U CN204836020U CN 204836020 U CN204836020 U CN 204836020U CN 201520550268 U CN201520550268 U CN 201520550268U CN 204836020 U CN204836020 U CN 204836020U
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Abstract
The utility model belongs to motor control field especially relates to an electric motor car and duplex winding motor control system thereof. This duplex winding motor control system includes main control chip MCU, electronic switch, two drive circuit and two winding inverter circuit, and two winding inverter circuit connect high -speed winding of motor and low -speed winding respectively to respectively by a drive circuit drive. The PWM pulse signal of main control chip MCU output passes through electronic switch and inputs respectively among two drive circuit, at one time, pulse drive signal can only transmit for one of them drive circuit. The utility model provides an electric motor car and duplex winding motor control system thereof can not produce and take place the condition that the contact bonded and to switch because of striking sparks, and switching time is very short between high -speed winding and the low -speed winding, can not take place the rotational speed sudden change and phenomenon that the card of riding pauses, the dependable performance, and it is more comfortable to ride, has greatly improved user's comfort level and satisfaction.
Description
Technical field
The utility model belongs to Motor Control Field, particularly relates to a kind of electric motor car and double-winding motor control system thereof.
Background technology
Along with the development of new energy technology and the raising of people's living standard, electric motor car at home development is in recent years comparatively rapid, and domestic market still has a considerable number of recoverable amount.China belongs to many landform country, and in the area that landform is comparatively complicated, the effect of riding of electric motor car can not meet the user demand of user completely.As when level road is ridden, need the quick power saving of electric motor car to travel, when certain slope is ridden, need electric motor car to climb strong and powerfully.Because the potential of electric motor car speed and moment of torsion is determined by motor substantially, simplex winding motor is difficult to the demand meeting speed and moment of torsion two aspect completely.
For this situation, at present existing a kind of double-winding motor can address this is that substantially, namely inside motor respectively around one group of low speed winding and one group of high speed winding, during the work of low speed winding, Motor torque is large, is applicable to climbing; During the work of high speed winding, motor speed is fast, and applicable level road is ridden.Namely Fig. 1 shows the module frame chart of this double-winding motor control system, the big current signal of winding inverter circuit is connected respectively to motor low speed winding and high speed winding by relay, MCU control relay switches between motor low speed winding and high speed winding, the demand of running at high speed when can realize electric motor car level road, travelling with large torque when climbing.But the scheme shown in Fig. 1 has two defects at least: one is because relay switches big current signal, to disconnect and the moment is connected is easier to generation spark phenomenon at relay contact, time serious, can make that contact is bonding causes follow-up can not switching; Two be reaction time of switching of high-current relay usually at more than 500ms, when electric motor car low speed driving switching bicyclist can be made to feel significantly card is felt immediately, affects user's user satisfaction.
Utility model content
In view of this, first namely the purpose of this utility model is to provide a kind of double-winding motor control system, under playing the prerequisite of double-winding motor speed and moment of torsion completely, solving prior art uses relay to switch winding, and easily occurring rides to produce when contact sparking is bonding can not be switched and switch obviously blocks the shortcoming felt immediately.
To achieve these goals, the double-winding motor control system that the utility model provides, comprising: main control chip MCU, electronic switch, two drive circuits and two winding inverter circuits;
Described two winding inverter circuits are connected with high speed winding with the low speed winding of motor respectively, correspond to low speed winding inverter circuit and high speed winding inverter circuit respectively; Described low speed winding inverter circuit and high speed winding inverter circuit are driven by the first drive circuit and the second drive circuit respectively, and the pwm pulse signal that described main control chip MCU exports is transferred to described first drive circuit or described second drive circuit respectively by described electronic switch; At one time, pulse drive signal can only be transferred to one of them drive circuit.
Further, the double-winding motor control system that the utility model provides, also comprises and samples to the current signal of low speed winding inverter circuit and high speed winding inverter circuit and feed back to low speed current sampling circuit and the high speed current sampling circuit of described main control chip MCU respectively.
Particularly, described low speed current sampling circuit is arranged between described low speed winding inverter circuit and described electronic switch, and described high speed current sampling circuit is arranged between described high speed winding inverter circuit and described electronic switch; The sample rate current of low speed winding inverter circuit and high speed winding inverter circuit is transferred to described main control chip MCU respectively by described electronic switch.Or described low speed current sampling circuit is arranged between described low speed winding inverter circuit and described main control chip MCU, described high speed current sampling circuit is arranged between described high speed winding inverter circuit and described main control chip MCU; Sample rate current is directly transferred to described main control chip MCU.
Further, described two winding inverter circuits include three brachium pontis be made up of multiple power switch pipe, and each brachium pontis is divided into Shang Qiao and Xia Qiao, and each upper brachium pontis and lower brachium pontis are formed in parallel by one or more power switch pipe.In a preferred embodiment, because electric current required when the high speed winding of motor runs is less, the upper and lower bridge arm of described high speed winding inverter circuit comprises a power switch pipe respectively; Electric current required when low speed winding runs is comparatively large, and the upper and lower bridge arm of low speed winding inverter circuit is respectively formed in parallel with two power tubes.
On the other hand, the utility model also provides a kind of electric motor car, is provided with a double-winding motor control system and controls motor in this electric motor car, and as improvement, its double-winding motor control system is the double-winding motor control system under arbitrary form as above.
The electric motor car that the utility model provides and double-winding motor control system thereof, controlled two of motor windings respectively by an electronic switch, two drive circuits and two winding inverter circuits.When needing to run at high speed when riding, main control chip MCU controls electronic switch and six road pwm pulse signals is inputted the second drive circuit, drives the work of high speed winding inverter circuit, motor high speed winding is energized, thus motor is run up; When needing large torque when riding, main control chip MCU controls electronic switch and six road pwm pulse signals is inputted the first drive circuit, drives the work of low speed winding inverter circuit, motor low speed winding is energized, thus makes motor export large torque rotation.Because electronic switch switches Shi six road pwm pulse weak current signal, relay contact can't be there is because of bonding phenomenon of striking sparks, and the time that electronic switch switches is very short, can complete within several us, the situation that card pauses can not be produced completely because length switching time cause motor speed to change.Therefore, the electric motor car that the utility model provides and double-winding motor control system thereof, the situation that can not switch because sparking generation contact is bonding can not be produced, and between high speed winding and low speed winding switching time very short, the phenomenon that rotating speed suddenlys change and card of riding pauses can not be there is, dependable performance, rides more comfortable, drastically increases comfort level and the satisfaction of user.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of double-winding motor control system of the prior art;
Fig. 2 is the structured flowchart of the double-winding motor control system that the utility model embodiment provides;
Fig. 3 is the structured flowchart of the double-winding motor control system that the utility model one preferred embodiment provides;
Fig. 4 is the structured flowchart of the double-winding motor control system that another preferred embodiment of the utility model provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provide firstly a kind of double-winding motor control system of electric motor car.Namely Fig. 2 shows the structured flowchart of the double-winding motor control system that the utility model embodiment provides.For convenience of explanation, illustrate only part related to the present embodiment.See Fig. 2, this double-winding motor control system comprise main control chip MCU and, be different from a winding inverter circuit of existing control system in Fig. 1 and the structure of relay, the control system that the utility model embodiment provides comprises an electronic switch 100, two drive circuits and two winding inverter circuits.
As shown in Figure 2, two winding inverter circuits are connected with high speed winding with the low speed winding of motor respectively, correspond to low speed winding inverter circuit 301 and high speed winding inverter circuit 302 respectively, described low speed winding inverter circuit 301 and high speed winding inverter circuit 302 are driven by the first drive circuit 201 and the second drive circuit 202 respectively.Main control chip MCU exports six road pwm pulse signals to electronic switch 100, electronic switch 100 and then be transferred to the first drive circuit 201 or described second drive circuit 202 respectively.Drive circuit produces drive singal again and drives the work of two winding inverter circuits respectively, makes corresponding motor winding energising, thus drive motors running.
According to the double-winding motor control system that the utility model provides, by an electronic switch, two drive circuits and two winding inverter circuits, two of motor windings are controlled respectively.When needing to run at high speed when riding, main control chip MCU controls electronic switch and six road pwm pulse signals is inputted the second drive circuit, drives the work of high speed winding inverter circuit, motor high speed winding is energized, thus motor is run up; When needing large torque when riding, main control chip MCU controls electronic switch and six road pwm pulse signals is inputted the first drive circuit, drives the work of low speed winding inverter circuit, motor low speed winding is energized, thus makes motor export large torque rotation.Because electronic switch switches Shi six road pwm pulse weak current signal, relay contact can't be there is because of bonding phenomenon of striking sparks, and the time that electronic switch switches is very short, can complete within several us, the situation that card pauses can not be produced completely because length switching time cause motor speed to change.
As preferably, the double-winding motor control system that the utility model provides also comprises samples to the current signal of low speed winding inverter circuit 301 and high speed winding inverter circuit 302 and feeds back to low speed current sampling circuit 401 and the high speed current sampling circuit 402 of main control chip MCU respectively.Fig. 3 and Fig. 4 is the structured flowchart of the double-winding motor control system that the utility model two preferred embodiments provide respectively.Same, for convenience of explanation, all illustrate only the part relevant to embodiment.
See Fig. 3, the double-winding motor control system that the preferred embodiment provides, except comprising main control chip MCU, electronic switch 100, two drive circuits and two winding inverter circuits, also comprises low speed current sampling circuit 401 and high speed current sampling circuit 402.Low speed current sampling circuit 401 is arranged between low speed winding inverter circuit 301 and electronic switch 100, and high speed current sampling circuit 402 is arranged between high speed winding inverter circuit 302 and electronic switch 100.It can thus be appreciated that the sample rate current of low speed winding inverter circuit 301 and high speed winding inverter circuit 302 is transferred to main control chip MCU respectively by electronic switch 100.
Continue see Fig. 4, the double-winding motor control system that the preferred embodiment provides, except comprising main control chip MCU, electronic switch 100, two drive circuits and two winding inverter circuits, also comprises low speed current sampling circuit 401 and high speed current sampling circuit 402.With embodiment illustrated in fig. 3 unlike, low speed current sampling circuit 401 is arranged between low speed winding inverter circuit 301 and main control chip MCU, and high speed current sampling circuit 402 is arranged between high speed winding inverter circuit 302 and main control chip MCU; That is, in the present embodiment, sample rate current is directly transferred to main control chip MCU from current sampling circuit.
When specific implementation, two winding inverter circuits include three brachium pontis be made up of multiple power switch pipe, and each brachium pontis is divided into Shang Qiao and Xia Qiao, and each upper brachium pontis and lower brachium pontis are formed in parallel by one or more power switch pipe.
Further, in a preferred embodiment, because electric current required when the high speed winding of motor runs is less, the upper and lower bridge arm of high speed winding inverter circuit 302 comprises a power switch pipe respectively; Electric current required when low speed winding runs is comparatively large, and the upper and lower bridge arm of low speed winding inverter circuit 301 is respectively formed in parallel with two power tubes.
In addition, the utility model embodiment also provides a kind of electric motor car.Be provided with a double-winding motor control system in this electric motor car to control motor, and this double-winding motor control system is the double-winding motor control system of arbitrary form as shown in figs 2-4.Further, when specific implementation, two winding inverter circuits include three brachium pontis be made up of multiple power switch pipe, and each brachium pontis is divided into Shang Qiao and Xia Qiao, and each upper brachium pontis and lower brachium pontis are formed in parallel by one or more power switch pipe.Further, in a preferred embodiment, because electric current required when the high speed winding of motor runs is less, the upper and lower bridge arm of high speed winding inverter circuit 302 comprises a power switch pipe respectively; Electric current required when low speed winding runs is comparatively large, and the upper and lower bridge arm of low speed winding inverter circuit 301 is respectively formed in parallel with two power tubes.
In sum, the electric motor car that the utility model provides and double-winding motor control system thereof, the situation that can not switch because sparking generation contact is bonding can not be produced, and between high speed winding and low speed winding switching time very short, the phenomenon that rotating speed suddenlys change and card of riding pauses can not be there is, dependable performance, rides more comfortable, drastically increases comfort level and the satisfaction of user.
It should be noted that in above-described embodiment, included unit is carry out dividing according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit, also just for the ease of mutual differentiation, is not limited to protection range of the present utility model.
In addition, one of ordinary skill in the art will appreciate that all or part of step realized in the various embodiments described above method is that the hardware that can carry out instruction relevant by program has come, corresponding program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk or CD etc.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, although carried out comparatively detailed description with reference to previous embodiment to the utility model, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments or carry out equivalent replacement to wherein portion of techniques feature.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a double-winding motor control system, for driving double-winding motor, is characterized in that, described control system comprises: main control chip MCU, electronic switch, two drive circuits and two winding inverter circuits;
Described two winding inverter circuits are connected with high speed winding with the low speed winding of motor respectively, correspond to low speed winding inverter circuit and high speed winding inverter circuit respectively; Described low speed winding inverter circuit and high speed winding inverter circuit are driven by the first drive circuit and the second drive circuit respectively, and the pwm pulse signal that described main control chip MCU exports is transferred to described first drive circuit or described second drive circuit respectively by described electronic switch.
2. double-winding motor control system as claimed in claim 1, it is characterized in that, described control system also comprises: sample to the current signal of described low speed winding inverter circuit and high speed winding inverter circuit and feed back to low speed current sampling circuit and the high speed current sampling circuit of described main control chip MCU respectively;
Described low speed current sampling circuit is arranged between described low speed winding inverter circuit and described electronic switch, and described high speed current sampling circuit is arranged between described high speed winding inverter circuit and described electronic switch; The sample rate current of low speed winding inverter circuit and high speed winding inverter circuit is transferred to described main control chip MCU respectively by described electronic switch.
3. double-winding motor control system as claimed in claim 1, it is characterized in that, described control system also comprises: sample to the current signal of described low speed winding inverter circuit and high speed winding inverter circuit and feed back to low speed current sampling circuit and the high speed current sampling circuit of described main control chip MCU respectively;
Described low speed current sampling circuit is arranged between described low speed winding inverter circuit and described main control chip MCU, and described high speed current sampling circuit is arranged between described high speed winding inverter circuit and described main control chip MCU; Sample rate current is directly transferred to described main control chip MCU.
4. double-winding motor control system as claimed in claim 1, it is characterized in that, described two winding inverter circuits include three brachium pontis be made up of multiple power switch pipe, and each brachium pontis is divided into Shang Qiao and Xia Qiao, and each upper brachium pontis and lower brachium pontis are formed in parallel by one or more power switch pipe.
5. double-winding motor control system as claimed in claim 4, it is characterized in that, the upper and lower bridge arm of described high speed winding inverter circuit comprises a power switch pipe respectively; The upper and lower bridge arm of described low speed winding inverter circuit comprises two power switch pipes in parallel respectively.
6. an electric motor car, a built-in double-winding motor control system controls motor, it is characterized in that, described double-winding motor control system comprises:
Main control chip MCU, electronic switch, two drive circuits and two winding inverter circuits;
Described two winding inverter circuits are connected with high speed winding with the low speed winding of motor respectively, correspond to low speed winding inverter circuit and high speed winding inverter circuit respectively; Described low speed winding inverter circuit and high speed winding inverter circuit are driven by the first drive circuit and the second drive circuit respectively, and the pwm pulse signal that described main control chip MCU exports is transferred to described first drive circuit or described second drive circuit respectively by described electronic switch.
7. electric motor car as claimed in claim 6, it is characterized in that, described control system also comprises: sample to the current signal of described low speed winding inverter circuit and high speed winding inverter circuit and feed back to low speed current sampling circuit and the high speed current sampling circuit of described main control chip MCU respectively;
Described low speed current sampling circuit is arranged between described low speed winding inverter circuit and described electronic switch, and described high speed current sampling circuit is arranged between described high speed winding inverter circuit and described electronic switch; The sample rate current of low speed winding inverter circuit and high speed winding inverter circuit is transferred to described main control chip MCU respectively by described electronic switch.
8. electric motor car as claimed in claim 6, it is characterized in that, described control system also comprises: sample to the current signal of described low speed winding inverter circuit and high speed winding inverter circuit and feed back to low speed current sampling circuit and the high speed current sampling circuit of described main control chip MCU respectively;
Described low speed current sampling circuit is arranged between described low speed winding inverter circuit and described main control chip MCU, and described high speed current sampling circuit is arranged between described high speed winding inverter circuit and described main control chip MCU; Sample rate current is directly transferred to described main control chip MCU.
9. electric motor car as claimed in claim 6, it is characterized in that, described two winding inverter circuits include three brachium pontis be made up of multiple power switch pipe, and each brachium pontis is divided into Shang Qiao and Xia Qiao, and each upper brachium pontis and lower brachium pontis are formed in parallel by one or more power switch pipe.
10. electric motor car as claimed in claim 9, it is characterized in that, the upper and lower bridge arm of described high speed winding inverter circuit comprises a power switch pipe respectively; The upper and lower bridge arm of described low speed winding inverter circuit comprises two power switch pipes in parallel respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520550268.2U CN204836020U (en) | 2015-07-27 | 2015-07-27 | Electric motor car and duplex winding motor control system thereof |
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| CN201520550268.2U CN204836020U (en) | 2015-07-27 | 2015-07-27 | Electric motor car and duplex winding motor control system thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317522A (en) * | 2017-07-14 | 2017-11-03 | 上海航天控制技术研究所 | Suppress the circuit of double-winding dc. brushless motor inverse electromotive force and induced electromotive force |
| CN108418497A (en) * | 2018-05-14 | 2018-08-17 | 西安清泰科新能源技术有限责任公司 | A kind of sectional wind electric machine controller and control method |
| CN111224490A (en) * | 2018-11-26 | 2020-06-02 | 陈丰田 | Motor device |
| WO2024045271A1 (en) * | 2022-08-29 | 2024-03-07 | 中车株洲电力机车研究所有限公司 | Electric drive system, method, apparatus, storage medium, electronic device, and electric vehicle |
-
2015
- 2015-07-27 CN CN201520550268.2U patent/CN204836020U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317522A (en) * | 2017-07-14 | 2017-11-03 | 上海航天控制技术研究所 | Suppress the circuit of double-winding dc. brushless motor inverse electromotive force and induced electromotive force |
| CN107317522B (en) * | 2017-07-14 | 2019-08-27 | 上海航天控制技术研究所 | Inhibit the circuit of double-winding dc. brushless motor inverse electromotive force and induced electromotive force |
| CN108418497A (en) * | 2018-05-14 | 2018-08-17 | 西安清泰科新能源技术有限责任公司 | A kind of sectional wind electric machine controller and control method |
| CN108418497B (en) * | 2018-05-14 | 2024-05-31 | 西安清泰科新能源技术有限责任公司 | Segmented winding motor controller and control method |
| CN111224490A (en) * | 2018-11-26 | 2020-06-02 | 陈丰田 | Motor device |
| WO2024045271A1 (en) * | 2022-08-29 | 2024-03-07 | 中车株洲电力机车研究所有限公司 | Electric drive system, method, apparatus, storage medium, electronic device, and electric vehicle |
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Address after: No. 3 Gongye West Road, Songshan Lake Park, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Gaobiao Intelligent Technology Co.,Ltd. Address before: No.3, Gongye West Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: SHENZHEN GOBAO ELECTRONIC TECHNOLOGY Co.,Ltd. |