CN103434415A - Motor vehicle driving system - Google Patents
Motor vehicle driving system Download PDFInfo
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- CN103434415A CN103434415A CN2013103445017A CN201310344501A CN103434415A CN 103434415 A CN103434415 A CN 103434415A CN 2013103445017 A CN2013103445017 A CN 2013103445017A CN 201310344501 A CN201310344501 A CN 201310344501A CN 103434415 A CN103434415 A CN 103434415A
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Abstract
The invention relates to a motor vehicle driving system which comprises at least two inverter circuits, a vehicle control unit, a motor main controller, a pulse width modulation circuit, a driving circuit and a driving motor. The driving motor comprises a stator and a rotor; the stator is wound with at least two sets of windings; the vehicle control unit is electrically connected with the motor main controller and is used for acquiring an accelerator pedal signal and converting the accelerator pedal signal into a torque command; the motor main controller is also electrically connected with the pulse width modulation circuit and is used for controlling the pulse width modulation circuit to output a preset duty ratio to the driving circuit according to the torque command to enable the driving circuit to drive each inverter circuit so that each inverter circuit inverts direct current output by a power battery into alternating current, and providing the alternating current to each corresponding winding of the driving motor to respectively control each corresponding winding of the driving motor to output different torques so as to enable the driving motor to output a preset torque and enable a vehicle to run at a desired vehicle speed. According to the invention, a driving range of the vehicle can be prolonged; the service life of the power battery is prolonged.
Description
Technical field
The present invention relates to self-propelled vehicle actuation techniques field, relate in particular to automotive driving system.
Background technology
At present, new energy vehicle development is both at home and abroad maked rapid progress, and wherein drive motor is the major impetus drive element of self-propelled vehicle.The type of vehicular drive motor mainly contains three kinds of alternating current dynamo, DC machine and reluctance motors.But DC machine, due to the problem that torque pulsation is large, power consumption is high, exits the market of automobile drive motor gradually.The torque pulsation problem of reluctance motor is not well solved yet.
Now, the vehicular drive motor mainly adopts AC induction motor and the AC permanent magnet synchronous motor in alternating current dynamo.And the threephase stator winding of AC induction motor and AC permanent magnet synchronous motor mostly adopts the simplex winding form, and the horsepower output of drive motor is all very large, even reaches tens kilowatts.Especially in pure electric vehicle, drive motor is unique power output part, just need to carry out high-power large electric current power supply to motor by bus for the electrokinetic cell to the drive motor power supply, existence due to the electrokinetic cell internal resistance, high-power power supply must cause electrokinetic cell to lose most power because of inner heat, thereby greatly reduced the continual mileage of vehicle, reduced the service life of electrokinetic cell.
Summary of the invention
Therefore, the invention provides automotive driving system, the problem existed to overcome existing self-propelled vehicle actuation techniques.
Particularly, a kind of automotive driving system that the embodiment of the present invention proposes, comprise at least two inverter circuits and, entire car controller, motor master controller, pulse-width modulation circuit, driving circuit and drive motor; Drive motor comprises stator and rotor, is wound with at least double winding on stator; Entire car controller and motor master controller are electrical connected, and for gathering accelerator pedal signal, and accelerator pedal signal are converted to torque command; The motor master controller also is electrical connected with pulse-width modulation circuit, export predetermined dutycycle to driving circuit for according to torque command, controlling pulse-width modulation circuit, making driving circuit drive each inverter circuit to take by each inverter circuit is alternating current by the DC inverter of electrokinetic cell output, and alternating current is offered to corresponding each winding of drive motor with corresponding each winding of controlling respectively drive motor, export different moments of torsion, and then make drive motor export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation.
In sum, the present invention is transformed by the stator to drive motor, adopt multiple secondary winding, the horsepower output of every cover winding reduces greatly than existing simplex winding drive motor, for example in double-winding structure, the horsepower output of every cover winding is exactly half of existing simplex winding motor, receive by the motor master controller torque command that entire car controller sends, control pulse-width modulation circuit according to torque command and export predetermined dutycycle to driving circuit, make driving circuit drive each inverter circuit to export different moments of torsion with corresponding each winding of being controlled respectively drive motor by each inverter circuit, and then make drive motor export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation, thereby extended the continual mileage of self-propelled vehicle, increased the service life of electrokinetic cell.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification sheets, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
The accompanying drawing explanation
Fig. 1 is the main block architecture diagram of the automotive driving system of embodiment of the present invention proposition;
Fig. 2 is the main block architecture diagram of the automotive driving system of another embodiment of the present invention proposition;
Fig. 3 is the schematic diagram that the double winding of embodiment of the present invention proposition adopts Y connection;
Fig. 4 is the schematic diagram that the double winding of embodiment of the present invention proposition adopts delta connection;
Fig. 5 is the schematic diagram that the double winding electric current of the automotive driving system of embodiment of the present invention proposition is exported;
Fig. 6 is the schematic diagram that the simplex winding electric current of the automotive driving system of existing employing simplex winding is exported.
The specific embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its specific embodiment of automotive driving system, structure, feature and effect that foundation the present invention is proposed, be described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic, can clearly present in following the cooperation in describing in detail with reference to graphic preferred embodiment.By the explanation of the specific embodiment, when can be to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet appended graphic only being to provide with reference to the use with explanation not be used for the present invention is limited.
Fig. 1 is the main block architecture diagram of the automotive driving system of embodiment of the present invention proposition.Fig. 3 is the schematic diagram that the double winding of embodiment of the present invention proposition adopts Y connection.Fig. 4 is the schematic diagram that the double winding of embodiment of the present invention proposition adopts delta connection.Refer to Fig. 1, Fig. 3 and Fig. 4, automotive driving system comprises: at least two inverter circuits 101 and 102, entire car controller 105, driving circuit 111, drive motor 113 and governor circuit.Governor circuit comprises motor master controller 107 and pulse-width modulation circuit 109.
More specifically, drive motor 113 comprises stator and rotor 115.Wherein on stator, be wound with at least double winding.In present embodiment, stator adopts double-winding structure, and it comprises two covers winding (the first winding 116 and the second winding 117) in parallel, and the connection of two covers winding in parallel can adopt Y connection as shown in Figure 3, also can adopt delta connection as shown in Figure 4.This double-winding structure of stator is applicable to asynchronous dynamo, also is applicable to synchronous dynamo.
At least two inverter circuits 101,102, be electrical connected with electrokinetic cell 100, drive motor 113 and driving circuit 111 respectively, is alternating current for the DC inverter by electrokinetic cell 100 outputs, and alternating current is offered to corresponding each winding of drive motor 113.
Entire car controller 105, be electrical connected with motor master controller 107, for gathering accelerator pedal signal, and offers motor master controller 107 after accelerator pedal signal is converted to torque command.
Wherein, when the user depresses Das Gaspedal, Das Gaspedal can provide corresponding accelerator pedal signal to entire car controller 105.
Motor master controller 107, with entire car controller 105, pulse-width modulation circuit 109 is electrical connected, when receiving the torque command of entire car controller 105 transmissions, it controls the predetermined dutycycle of pulse-width modulation circuit 109 outputs to driving circuit 111 according to torque command, making driving circuit 111 drive each inverter circuit 101 to take by each inverter circuit 101 is alternating current by the DC inverter of electrokinetic cell 100 outputs, and alternating current is offered to corresponding each winding of drive motor 113 with corresponding each winding of controlling respectively drive motor 113, export different moments of torsion, and then make drive motor 113 export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation.
In an embodiment of the present invention, the present invention is transformed by the stator to drive motor 113, adopt multiple secondary winding, the horsepower output of every cover winding reduces greatly than existing simplex winding drive motor, for example in double-winding structure, the horsepower output of every cover winding is exactly half of existing simplex winding motor, receive by motor master controller 107 torque command that entire car controller 105 sends, control the predetermined dutycycle of pulse-width modulation circuit 109 outputs to driving circuit 111 according to torque command, make driving circuit 111 drive each inverter circuit 101 to export different moments of torsion with corresponding each winding of being controlled respectively drive motor 113 by each inverter circuit 101, and then make drive motor 113 export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation, thereby extended the continual mileage of vehicle, increased the service life of electrokinetic cell 100.
Fig. 2 is the main block architecture diagram of the automotive driving system of another embodiment of the present invention proposition.Fig. 2 improves on the basis of Fig. 1.Refer to Fig. 2, Fig. 3 and Fig. 4, automotive driving system comprises: at least two inverter circuits 201 and 202, entire car controller 205, driving circuit 211, drive motor and governor circuit.Governor circuit comprises motor master controller 207 and pulse-width modulation circuit 209.
More specifically, drive motor comprises stator and rotor 215.Wherein on stator, be wound with at least double winding.In present embodiment, stator adopts double-winding structure, it comprises two covers winding (the first winding 216 and the second winding 217) in parallel, and two covers winding in parallel is connected to inverter circuit 201 and 202, the connection of two covers winding in parallel can adopt Y connection as shown in Figure 3, also can adopt delta connection as shown in Figure 4.This double-winding structure of stator is applicable to asynchronous dynamo, also is applicable to synchronous dynamo.
At least two inverter circuits 201,202, be electrical connected with electrokinetic cell 200, drive motor, driving circuit 211 respectively, is alternating current for the DC inverter by electrokinetic cell 200 outputs, and alternating current is offered to corresponding each winding of drive motor 211.
Each inverter circuit comprises 6 insulated gate bipolar transistors, and each insulated gate bipolar transistor comprises aerotron and diode.Inverter circuit 201 is identical with the connection mode of 6 switching valves in 202.Take inverter circuit 201 as example, and wherein, the base stage of aerotron A, B, C, D, E, F all is electrical connected with driving circuit 211 (not shown in Fig. 2), and the collecting electrode of aerotron A, B, C all is electrical connected with the anodal P of electrokinetic cell 200.The emitter of aerotron A, B, C is electrical connected with the collecting electrode of aerotron D, E, F respectively.The emitter of aerotron D, E, F all is electrical connected with the negative pole N of electrokinetic cell 200.The negative electrode and positive electrode of diode A1, B1, C1, D1, E1, F1 is connected between the collecting electrode and emitter of aerotron A, B, C, D, E, F.
Wherein, when the user depresses Das Gaspedal, Das Gaspedal can provide corresponding accelerator pedal signal to entire car controller 205.
In addition, driver for vehicle can also comprise at least two current probes (the first current probe 251 as shown in Figure 2, the second current probe 253), position detector 255, at least two temperatures detector (the first Temperature Detector 257 as shown in Figure 2, the second Temperature Detector 259), piezoelectric detector 261, battery management system 269 and filter circuit of pressure-stabilizing 271.Governor circuit can also comprise the unit 263 that tests the speed, emergency protection unit 265 and A/D converter 267.
Filter circuit of pressure-stabilizing 271, comprise capacitor C 1 and resistance R 1 and R2, and capacitor C 1 is connected between the anodal P and negative pole N of electrokinetic cell 200, and resistance R 1 and R2 are connected in series between the anodal P and negative pole N of electrokinetic cell 200.Capacitor C 1 plays the effect of voltage stabilizing and filtering.Resistance R 1 and R2 play pressure stabilization function.
The first current probe 251; with the first end U of electrokinetic cell 200, inverter circuit 201, the first winding 216 and the second end V and emergency protection unit 265, be electrical connected; the electric current of the phase current of its first end U for detection of the first winding 216 and the second end V and electrokinetic cell 200 outputs, and the electric current detected is offered to A/D converter 267 and emergency protection unit 265.
The second current probe 253; electrically reaching emergency protection unit 265 with the first end U1 of electrokinetic cell 200, inverter circuit 201, the second winding 217 and the second end V1 is connected; for detection of first end U1 and the phase current of the second end V1 and the electric current of electrokinetic cell 200 outputs of the second winding 217, and the electric current detected is offered to A/D converter 267 and emergency protection unit 265.
The unit 263 that tests the speed, be electrical connected with motor master controller 207 and position detector 255, and its position for the rotor 215 according to detecting calculates the rotating speed of rotor 215, and the rotating speed of rotor 215 is offered to motor master controller 207.
The first Temperature Detector 257, for detection of the temperature of the first winding 216, and offer A/D converter 267 and emergency protection unit 265 by the temperature detected.The first Temperature Detector 257 can be placed in around the first winding 216 with contactless.
The second Temperature Detector 259, for detection of the temperature of the second winding 217, and offer A/D converter 267 and emergency protection unit 265 by the temperature detected.The second Temperature Detector 259 can be placed in around the second winding 217 with contactless.
A/D converter 267, be electrical connected with the first current probe 251, the second current probe 253, the first Temperature Detector 257, the second Temperature Detector 259, piezoelectric detector 261, after the voltage that the temperature detected for electric current, the first Temperature Detector 257, the second Temperature Detector 259 respectively the first current probe 251, the second current probe 253 detected and piezoelectric detector 261 detect is converted to respectively digital current signal, digital temperature signal and digital voltage signal, offer motor master controller 207.
Particularly; emergency protection unit 265 can compare the electric current of detection, temperature and voltage and predetermined current, preset temperature and predeterminated voltage and determine whether to send the control signal that reduces moment of torsion (for example reducing moment of torsion to certain predetermined value or to the control signal of a preset range) to driving circuit 211; by driving circuit 211, to drive each inverter circuit 201 according to the control signal that reduces moment of torsion so that each inverter circuit 201 is controlled the output torque of corresponding each winding that reduces drive motor, and then the moment of torsion of drive motor output is reduced in preset range.
The electric current detected of take is example, when the electric current even detected is greater than predetermined current, send reduce the control signal (for example reducing moment of torsion to certain predetermined value or to the control signal of a preset range) of moment of torsion to driving circuit 211, by driving circuit 211, to drive each inverter circuit 201 according to the control signal that reduces moment of torsion so that each inverter circuit 201 is controlled the output torque of corresponding each winding that reduces drive motor, and then the moment of torsion of drive motor output is reduced in preset range.
Wherein, battery management system 269 can provide the state of electrokinetic cell 200 to CAN bus 273 and be shared.The state of electrokinetic cell 200 comprises the temperature of electrokinetic cell 200, the charged information of electrokinetic cell 200 etc.At this, the carrying capacity of the charged information indication electrokinetic cell 200 of electrokinetic cell 200.
In addition, motor master controller 207, also with the unit 263 that tests the speed, A/D converter 267, battery management system 269 is electrical connected, the digital current signal that it also sends for receiving A/D converter 267, digital temperature signal and digital voltage signal, the rotating speed of the rotor 215 that unit 263 sends tests the speed, the state of the battery 200 that battery management system 269 sends, and according to torque command, the digital current signal, digital temperature signal and digital voltage signal, the state of the rotating speed of rotor and battery 200 and control the predetermined dutycycle of pulse-width modulation circuit 209 output to driving circuit 211, making driving circuit 211 drive each inverter circuit 201 to take by each inverter circuit 201 is alternating current by the DC inverter of electrokinetic cell 200 outputs, and alternating current is offered to corresponding each winding of drive motor 211 with corresponding each winding of controlling respectively drive motor, export different moments of torsion, and then make drive motor export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation.
Wherein, motor master controller 207 can be by the digital current signal, digital temperature signal, digital voltage signal, the rotating speed of rotor 215, the state of battery 200 respectively with predetermined current, preset temperature, predeterminated voltage, preset rotation speed and default battery status compare and determine whether to send the control signal that reduces moment of torsion (digital current signal for example, digital temperature signal, digital voltage signal, the rotating speed of rotor 215, the state of battery 200 is respectively higher than predetermined current, preset temperature, predeterminated voltage, preset rotation speed, the state of battery 200 occurs that abnormal the transmission reduce moment of torsion to certain predetermined value or to the control signal of a preset range) to pulse-width modulation circuit 209, pulse-width modulation circuit 209 is exported predetermined dutycycle to driving circuit 211, take and drive each inverter circuit 201 according to the control signal that reduces moment of torsion so that each inverter circuit 201 is alternating current by the DC inverter of electrokinetic cell 200 outputs by driving circuit 211, and alternating current is offered to corresponding each winding of drive motor 211 to control the output torque of corresponding each winding that reduces drive motor, and then the torque power of drive motor output is reduced in preset range.Also for occurring in judgement that overvoltage, under-voltage, overcurrent, excess temperature, rotating speed are too high, battery status is while abnormal condition occurring, the horsepower output that motor master controller 207 can the restriction drive motor is to reach the purpose of protection drive motor.Like this stator of drive motor is transformed, adopt double-winding structure, the horsepower output of the every cover winding on stator is exactly half of existing simplex winding drive motor horsepower output, thereby can, so that the outgoing current of electrokinetic cell 200 reduces by half, can reduce the internal resistance watt loss of electrokinetic cell 200.
The state of the battery 200 that detects of take is example, if the state of the battery 200 detected the temperature of the abnormal battery 200 even detected occurs and is greater than default battery temperature, or the charged information of battery is while being less than the charged information of predetermined battery, send reduce the control signal (for example reducing moment of torsion to certain predetermined value or to the control signal of a preset range) of moment of torsion to pulse-width modulation circuit 209, pulse-width modulation circuit 209 is exported predetermined dutycycle to driving circuit 211, take and drive each inverter circuit 201 according to the control signal that reduces moment of torsion so that each inverter circuit 201 is alternating current by the DC inverter of electrokinetic cell 200 outputs by driving circuit 211, and alternating current is offered to corresponding each winding of drive motor 211 to control the output torque of corresponding each winding that reduces drive motor, and then the moment of torsion of drive motor output is reduced in preset range.
At this, motor master controller 207 can be controlled the predetermined dutycycle of pulse-width modulation circuit 109 outputs to driving circuit 211, make each inverter circuit 201 of driving circuit 211 driven replace output torque or electric current with corresponding each winding of being controlled respectively drive motor by each inverter circuit 101 in 1 pulse width modulation cycle, and then make drive motor export predetermined moment of torsion.Be illustrated in figure 5 the schematic diagram of the double winding electric current output of the automotive driving system that the embodiment of the present invention proposes.Figure 6 shows that the schematic diagram of the simplex winding electric current output that has the automotive driving system that adopts simplex winding now.The existing automotive driving system of simplex winding and the automotive driving system that the present invention adopts double winding of adopting compared, in one-period, in Fig. 5, hypothesis the second winding is worked in front half period, and output 10A electric current, the first winding is worked in rear half period, and output 10A electric current, within the whole cycle, average output current is 20A.If adopt so the driver for vehicle of simplex winding drive motor will export as shown in Figure 6 the moment of torsion identical with the automotive driving system that adopts double winding, simplex winding need be exported the 20A electric current in half period.Battery loss (being the inside battery loss) is exported to winding power when larger at battery, and loss is large, and the power of exporting to winding hour, and loss is little.The internal resistance of supposing battery is 0.5 ohm.Adopt the driver for vehicle of duplex winding drive motor, the power of exporting to winding due to battery is little, and the power of battery loss is also little, i.e. the power of battery in one-period (suppose the resistance R of battery=0.5 ohm) loss is P=I
2r * dutycycle=10*10*0.5*1=50W.Adopt the driver for vehicle of simplex winding drive motor, the power of exporting to winding due to battery is large, and the power of battery loss is also large, and in one-period, the power of battery loss is P=I
2r * dutycycle=20*20*0.5*0.5=100W.So the driver for vehicle of employing duplex winding drive motor can be saved about 50% internal resistance of cell loss.If the loss of battery reduces, can extend the service life of the battery of self-propelled vehicle, increase the continual mileage of vehicle, thus, driver for vehicle of the present invention has increased the service life of the battery 200 of self-propelled vehicle, can also extend the continual mileage of vehicle.
In an embodiment of the present invention, the present invention is transformed by the stator to drive motor, adopt multiple secondary winding, the horsepower output of every cover winding reduces greatly than existing simplex winding drive motor, for example in double-winding structure, the horsepower output of every cover winding is exactly half of existing simplex winding motor, receive by motor master controller 207 torque command that entire car controller 205 sends, control the predetermined dutycycle of pulse-width modulation circuit 209 outputs to driving circuit 211 according to torque command, make driving circuit 211 drive each inverter circuit 201 to export different moments of torsion with corresponding each winding of being controlled respectively drive motor by each inverter circuit 201, and then make drive motor export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation.In addition, also pass through emergency protection unit 265 or motor master controller 207 by the bus voltage of the battery 200 of detection, the phase current of each winding of stator, the temperature of each winding of stator, the rotating speed of rotor 215, the state of battery 200 and predeterminated voltage, predetermined current, preset temperature, preset rotation speed and default battery status compare, judgement is when overvoltage occurring, under-voltage, overcurrent, excess temperature, rotating speed is too high, when abnormal condition appear in battery status, motor master controller 207 can limit the horsepower output of drive motor to reach the purpose of protection drive motor, thereby extended the continual mileage of vehicle, increased the service life of electrokinetic cell 200, and when overvoltage occurring, under-voltage, overcurrent, excess temperature, rotating speed is too high, when appearring in battery status, abnormal condition also can to drive motor, be protected by reducing power.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. an automotive driving system, is characterized in that, comprising: at least two inverter circuits, entire car controller, motor master controller, pulse-width modulation circuit, driving circuit and drive motor; This drive motor comprises stator and rotor, is wound with at least double winding on this stator; This entire car controller and this motor master controller are electrical connected, and for gathering accelerator pedal signal, and this accelerator pedal signal are converted to torque command; This motor master controller also is electrical connected with this pulse-width modulation circuit, export predetermined dutycycle to this driving circuit for control this pulse-width modulation circuit according to this torque command, making this driving circuit drive this each inverter circuit to take by this each inverter circuit is alternating current by the DC inverter of electrokinetic cell output, and alternating current is offered to corresponding each winding of this drive motor with corresponding each winding of controlling respectively this drive motor, export different moments of torsion, and then make this drive motor export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation.
2. automotive driving system according to claim 1, is characterized in that, this at least double winding parallel connection, and all be connected in this inverter circuit, this is double winding employing Y connection or delta connection at least.
3. automotive driving system according to claim 1, is characterized in that, it further comprises:
At least two current probes, all with this electrokinetic cell, this inverter circuit, and this at least double winding be electrical connected, for detection of this at least phase current of double winding and the electric current of this electrokinetic cell output;
Piezoelectric detector, for detection of the bus voltage of this electrokinetic cell output; And
Two temperatures detector at least, for detecting respectively this at least temperature of double winding.
4. automotive driving system according to claim 3, it is characterized in that, it further comprises: A/D converter, for the electric current by detecting, temperature and voltage are converted to respectively the digital current signal, offer this motor master controller after digital temperature signal and digital voltage signal, this motor master controller is also for according to this digital current signal, this digital temperature signal and this digital voltage signal and control this pulse-width modulation circuit and export predetermined dutycycle and give this driving circuit, and at this digital current signal, this digital temperature signal and this digital voltage signal are greater than respectively predetermined current, when preset temperature and predeterminated voltage, send the control signal of reduction moment of torsion to this pulse-width modulation circuit.
5. automotive driving system according to claim 3, is characterized in that, it further comprises:
The emergency protection unit; with this, at least two temperatures detector, this at least two current probe, this piezoelectric detector and this driving circuit are electrical connected; it is for electric current, temperature and voltage according to detecting; transmit control signal to this driving circuit; so that controlling respectively corresponding each winding of this drive motor, this each inverter circuit exports different moments of torsion by this driving circuit, according to this control signal, to drive this each inverter circuit; and then make this drive motor export predetermined moment of torsion, vehicle is travelled with the speed of a motor vehicle of expectation.
6. automotive driving system according to claim 1, is characterized in that, it further comprises:
Position detector, for detecting in real time the position of this rotor; And
The unit that tests the speed, be electrical connected with this motor master controller and this position detector, calculates the rotating speed of this rotor for the position of this rotor according to detecting, and the rotating speed of this rotor is offered to this motor master controller.
7. automotive driving system according to claim 6, it is characterized in that, this motor master controller, also for the rotating speed according to this rotor, control this pulse-width modulation circuit and export predetermined dutycycle to this driving circuit, and at the rotating speed of this rotor during higher than preset rotation speed, send reduce moment of torsion control signal to this pulse-width modulation circuit.
8. automotive driving system according to claim 1, is characterized in that, it further comprises: battery management system, for Real-time Obtaining and the state of this electrokinetic cell is provided; This motor master controller is also controlled this pulse-width modulation circuit for the state according to this battery and is exported predetermined dutycycle and give this driving circuit, and occurs when abnormal at this battery status, send reduce moment of torsion control signal to this pulse-width modulation circuit.
9. automotive driving system according to claim 1, it is characterized in that, it further comprises: filter circuit of pressure-stabilizing, comprise electric capacity and the first resistance and the second resistance, this electric capacity is connected between the positive pole and negative pole of this electrokinetic cell, and this first resistance and this second resistance are connected in series between the positive pole and negative pole of this electrokinetic cell.
10. automotive driving system according to claim 1, it is characterized in that, each inverter circuit comprises 6 insulated gate bipolar transistors, each insulated gate bipolar transistor comprises the first to the 6th aerotron and the first to the 6th diode, this first base stage to the 6th aerotron all is electrical connected with this driving circuit, this first collecting electrode to the 3rd aerotron all is electrical connected with the positive pole of this electrokinetic cell, this first emitter to the 3rd aerotron is electrical connected with the 4th collecting electrode to the 6th aerotron respectively, the 4th emitter to the 6th aerotron all is electrical connected with the negative pole N of this electrokinetic cell, this first negative electrode and positive electrode to the 6th diode is connected between the collecting electrode and emitter of this first to the 6th aerotron.
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| CN106394262A (en) * | 2015-07-28 | 2017-02-15 | 通用汽车环球科技运作有限责任公司 | Method and apparatus to control an inverter |
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| CN112297876B (en) * | 2020-10-29 | 2022-02-08 | 合肥巨一动力***有限公司 | Electric drive control system based on electric automobile speed reducer and control method thereof |
| CN112953351A (en) * | 2021-02-18 | 2021-06-11 | 中国第一汽车股份有限公司 | Inverter system |
| CN114368290A (en) * | 2021-12-08 | 2022-04-19 | 奇瑞商用车（安徽）有限公司 | Electric vehicle drive control method and device, electric vehicle and storage medium |
| TWI827379B (en) * | 2022-11-23 | 2023-12-21 | 財團法人工業技術研究院 | Motor controller and motor control method for an electric vehicle |
| CN116674396A (en) * | 2023-07-28 | 2023-09-01 | 江西五十铃汽车有限公司 | New energy automobile electric drive system control method and system |
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