CN205836531U - The drive system of pure electric automobile and drive assembly thereof - Google Patents
The drive system of pure electric automobile and drive assembly thereof Download PDFInfo
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- CN205836531U CN205836531U CN201620490553.4U CN201620490553U CN205836531U CN 205836531 U CN205836531 U CN 205836531U CN 201620490553 U CN201620490553 U CN 201620490553U CN 205836531 U CN205836531 U CN 205836531U
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Abstract
The utility model proposes drive system and the drive assembly thereof of a kind of pure electric automobile.This drive assembly includes brshless DC motor and steel band type buncher.Steel band type buncher includes fluid torque-converter or clutch, and the outfan of brshless DC motor is fixing with the input of fluid torque-converter or clutch to be connected；Steel Belt Transmission combines, and the outfan including driving pulley, driven pulley and connection driving pulley and the steel belt of driven pulley, fluid torque-converter or clutch connects driving pulley to drive driving pulley to rotate；Decelerator, including main reducing gear and differential mechanism, main reducing gear connects driving differential mechanism, and main reducing gear includes gear train, and the output shaft of driven pulley connects gear train.The drive system of a kind of pure electric automobile that this utility model provides and drive assembly thereof, can realize intelligent stepless and smooth out without pause and transition in rhythm or melody speed change, and then the electric quantity consumption reducing battery is undermined with institute.
Description
Technical field
This utility model relates to vehicle technology field, particularly relates to the drive system of a kind of pure electric automobile.
Background technology
Automobile, as the important vehicles of modern, has the biggest recoverable amount in the whole world.Automobile is conventionally used
The energy is gasoline or diesel oil.Owing to gasoline and diesel oil are all from the such non-renewable resources of oil, and the meeting when burning
The various gas pollutants such as discharge carbon monoxide, Hydrocarbon, oxynitride, sulfur dioxide, people want to always
Gasoline and diesel oil is replaced with other energy more cleaned.Pure electric automobile is exactly a kind of new-energy automobile therein, and it only needs
Use electric energy, and without using gasoline or diesel oil.
Along with the continuous advancement of battery technology, occur in that business-like pure electric automobile.But it is the purest
Electric automobile still suffers from the problem that many impacts are universal.Such as, because of the restriction of battery capacity, the course continuation mileage of pure electric automobile
Shorter, cause what is called " mileage anxiety " problem.Under battery technology is temporarily difficult to the bottleneck gone beyond, how to improve the use of electric energy
Efficiency, becomes an important topic in pure electric automobile field.
The electric drive mode that pure electric automobile is commonly used at present is to be driven fixing decelerator and differential mechanism by motor.According to
This type of drive, motor runs under constant speed ratio drives.Owing to complex working condition is different to the requirement of torque, constant speed ratio driving side
Formula exports different torque by changing motor speed.For example, for big torque, need motor to increase speed and come in fact
Existing, and increase speed and need battery to discharge under bigger electric current.
Although having realized that pure electric automobile does not use the possible shortcoming of variator, acceleration time of such as vehicle and
High speed performance the most mutually restricts.It is generally recognised that by appropriate design motor characteristic curve, mate decelerator speed reducing ratio,
Major part pure electric automobile max. speed can also design speed per hour more than 150 kilometers, substantially disclosure satisfy that the market demand.By
This draws from the point of view of performance perspective, and pure electric vehicle there is no need to install additional the viewpoint of variator.
Specifically, major part conventional hybrid automobile typically installs internal combustion engine additional and mates corresponding variator, is to recognize
The biggest for electromotor work efficiency difference under different rotating speeds, load.By installing variator additional, electromotor can be made to be operated in
Efficiently district, the amplitude that its efficiency improves significantly greater than installs variator additional and brings transmission system efficiency to reduce amplitude, so that vehicle
Power drive system overall efficiency improves, and improves VE Vehicle Economy aggregate level.But simultaneously it is also noted that motor is high
Effect district efficiency can reach more than 95%, and its poor efficiency district efficiency can also reach more than 70%, and therefore motor is in its efficiency field
Internal efficiency change does not has electromotor so obvious, and its efficient district ratio is much larger than engine high-efficiency district ratio, it is thus regarded that pure electricity
Electrical automobile is not the most necessary to install variator additional.
But practice finding, known constant speed ratio type of drive exports the way of different moment of torsion by changing motor speed
There is serious drawback.For big torque, motor is needed to increase speed to realize.Increase speed and need battery bigger
Electric current under discharge, battery is easily caused damage by this.Under extreme case, need to utilize motor peak power and peak torque and
Peak value large driven current density motor material can obtain corresponding torque to meet the needs of actual condition.The consequence bag that this way causes
Including: the motor feels hot, service efficiency declines；Making limited and precious set of cells capacitance drastically decline, the big electric current of peak value is put simultaneously
Electricity makes battery steep temperature rise, heating up causes battery core internal resistance to be increased dramatically, and battery is impacted greatly；Number of recharge cycles is quick
Reduce, capacitance of storage and the battery core life-span falls sharply, the discharge period decline, do not meet the flash-over characteristic of power battery pack.
Utility model content
The technical problems to be solved in the utility model is to provide drive system and the drive assembly thereof of a kind of pure electric automobile,
Intelligent stepless can be realized smooth out without pause and transition in rhythm or melody speed change, and then the electric quantity consumption reducing battery is undermined with institute.
For solve above-mentioned technical problem, this utility model provide a kind of pure electric automobile drive assembly, including brushless directly
Stream motor and steel band type buncher, this steel band type buncher includes:
Fluid torque-converter or clutch, the outfan of this brshless DC motor and this fluid torque-converter or the input of clutch
End is fixing to be connected；
Steel Belt Transmission combines, including driving pulley, driven pulley and the transmission connecting this driving pulley and this driven pulley
Steel band, the outfan of this fluid torque-converter or clutch connects this driving pulley to drive this driving pulley to rotate；
Decelerator, including main reducing gear and differential mechanism, this main reducing gear connects this differential mechanism of driving, and this main reducing gear includes
Gear train, the output shaft of this driven pulley connects this gear train.
According to an embodiment of the present utility model, the motor cabinet of described brshless DC motor is bolted on described
On the shell of steel band type buncher.
This utility model additionally provides the drive system of a kind of pure electric automobile, including motor driver, entire car controller
(VCU), electric machine controller (MCU), variable-speed controller (TCU) and aforesaid drive assembly, wherein,
This motor driver electrically connects this brshless DC motor, and the outfan of this steel band type buncher connects driving wheel
Wheel shaft；
It is provided with respectively in order to measure first group of sensor of following at least part of parameter in this brshless DC motor: rotating speed,
Voltage, electric current, torque, the input of this electric machine controller connects this first group of sensor；
The signal input part of this motor driver connects the control signal outfan of this electric machine controller；
The signal input part of this entire car controller main driving signal output part with the accelerator pedal of this pure electric automobile respectively
Connect with the brake signal outfan of this pure electric automobile；
Gear shifting operator it is provided with and respectively in order to measure the of following at least part of parameter in this steel band type buncher
Two groups of sensors: clutch, this driving pulley and this driven pulley rotating speed and pressure, gear positions switch, this variable-speed controller
Input connects this second group of sensor, and the outfan of this variable-speed controller is connected with this gear shifting operator input；
This entire car controller, electric machine controller and variable-speed controller are connected through vehicle-carrying communication bus；
Wherein this entire car controller is simultaneously double by this vehicle-carrying communication bus with this variable-speed controller and this electric machine controller
Obtain in real time to communication and comprise GES, accelerator pedal main driving signal, brake signal, motor speed and torque load(ing) electric current
One group of parameter, according to the operating mode residing for this this pure electric automobile of group parameter determination, and gear ratio corresponding to this operating mode and becoming is turned round
Square, instructs this variable-speed controller and controls the execution of this gear shifting operator.
According to an embodiment of the present utility model, this operating mode includes starting, normal travel, at a slow speed, middling speed, quickly, on
Slope, uphill starting.
According to an embodiment of the present utility model, following parameter also measured by this first group of sensor: temperature.
According to an embodiment of the present utility model, following parameter also measured by this second group of sensor: oil pressure, oil temperature.
According to an embodiment of the present utility model, the rotating speed of this brshless DC motor is 0-3500rmp/min.
According to an embodiment of the present utility model, the corresponding different gear of each operating mode, maximum gear ratio 0-10km/h,
Minimum gear ratio is the speed of 60-70km/h.
According to an embodiment of the present utility model, move back vehicle speed value corresponding to shelves and be less than into vehicle speed value corresponding to shelves, forward and back
Gear shift response speed is less than 10ms.
The drive system of a kind of pure electric automobile that this utility model provides, utilizes brshless DC motor tandem drive steel band
Formula buncher, can realize intelligent stepless and smooth out without pause and transition in rhythm or melody speed change, and then the electric quantity consumption reducing battery is undermined with institute.
Accompanying drawing explanation
Being to be further understood from this utility model for providing including accompanying drawing, they are included and constitute of the application
Point, accompanying drawing shows embodiment of the present utility model, and plays the effect explaining this utility model principle together with this specification.
In accompanying drawing:
Fig. 1 shows the structural representation of drive assembly of the present utility model.
Fig. 2 shows the structural representation of drive system of the present utility model.
Detailed description of the invention
With detailed reference to accompanying drawing, embodiment of the present utility model is described now.In the case of any possible, all attached
Figure will use identical labelling to represent same or analogous part.Although additionally, the term used in this utility model
It is to select from public term, but some terms mentioned in this utility model description are probably applicant
Select by his or her judgement, the explanation in the relevant portion of description herein of its detailed meanings.Additionally, require not only
Pass through used actual terms, and be also to the meaning by each term is contained and understand this utility model.
Pure electric automobile is mainly used in urban transportation, and the vehicle most of the time is in startup, the work shape accelerating, braking
State, therefore efficiency when the starting performance of electric drive assembly, detent torque, starting current, acceleration, low speed, brake and slide
Time energy regenerating capability, the overload capacity of electric drive assembly, and the energy-conservation driving of full working scope be weigh electric vehicle engineering development
The particularly important foundation of Maturity and mark.
The motor of known pure electric automobile is to run under constant speed ratio drives.Although complex working condition is to the requirement of torque not
With, but owing to motor can export different moment of torsion as required, therefore it has been generally acknowledged that constant speed ratio drive be more suitable for pure electronic
Automobile.Constant speed ratio type of drive exports different torque by changing motor speed.
According to embodiment of the present utility model, propose a kind of pure electric automobile drive system using buncher and
Drive assembly.According to the proposed pure electrical vehicle driving system of embodiment of the present utility model and method, it had both met set of cells
Flash-over characteristic, meets again vehicle load characteristic, also is compliant with dynamic property and the economy of car load.
Fig. 1 shows the structural representation of drive assembly of the present utility model.With reference to shown in Fig. 1, a kind of pure electric automobile
Drive assembly 100 include brshless DC motor 110 and steel band type buncher (CVT) 120.Drive assembly 100 utilizes nothing
Brushless motor 110 tandem drive steel band type buncher 120.
Steel band type buncher 120 includes fluid torque-converter or clutch 130, Steel Belt Transmission combination 140 and decelerator
150.Wherein the outfan of brshless DC motor 110 is fixing with the input of fluid torque-converter or clutch 130 is connected.Concrete next
Say, fixing in the output shaft spline insertion fluid torque-converter of brshless DC motor 110 or the concentric axle sleeve of connection dish of clutch 130
Connect as one.Steel Belt Transmission combination 140 includes driving pulley 141, driven pulley 142 and connects driving pulley 141 and driven
The steel belt 143 of belt wheel 142.The outfan of fluid torque-converter or clutch 130 connects driving pulley 141 to drive main belt
Wheel 141 rotation.Decelerator 150 includes main reducing gear 160 and differential mechanism 170.Main reducing gear 150 connects and drives differential mechanism 170.
Main reducing gear 150 includes gear train 161, and the output shaft of driven pulley 142 connects gear train 161.
Steel band type buncher 120 drive that the axle spline housing in delivery outlet two ends is relative with two, left and right semiaxis to be inserted
Affixed.Semiaxis outer end, left and right male splined shaft inserts left and right driving respectively and takes turns the interior fastening of inner spline housing at 180 centers.Implement one
In example, the motor cabinet of brshless DC motor 110 can be fixed in, by bolt, the screwed hole that the shell of steel band buncher 120 is corresponding
In.
Fig. 2 shows the structural representation of drive system of the present utility model.Shown in Fig. 2 and Fig. 1, a kind of pure electronic
The drive system 200 of automobile, including motor driver 210, aforesaid drive assembly 100, set of cells 220, distribution box 230, electricity
Machine controller (MCU) 241, battery management system (Battery Management System, BMS) 242, entire car controller
(VCU) 243 and variable-speed controller (TCU) 244.
The power supply outfan of set of cells 220 is connected through Insulating A High-Voltage wire with the input of distribution box 230, distribution box
The outfan of 230 is connected through Insulating A High-Voltage wire with the input of motor driver 210.
Motor driver 210 electrically connects brshless DC motor 110.For example, the high input voltage of brshless DC motor 110
Hold corresponding with the high-voltage output end of motor driver 210, be connected through Insulating A High-Voltage wire.The output of buncher 120
End connects the wheel shaft of driving wheel.
In one embodiment, the characteristic of brshless DC motor 110 is the slow-speed of revolution/high pulling torque, and its rotating speed is 0-3500rmp/
min。
Can be provided with respectively in order to measure first group of sensor (not shown) of following parameter in brshless DC motor 110:
Temperature, rotating speed, voltage, electric current and torque.It is appreciated that these parameters can be as desired to select a part of or complete
Portion.
Shift actuator 170 it is provided with and respectively in order to measure second group of sensor of following parameter in buncher 120
(not shown): oil pressure, oil temperature, clutch, active and secondary speed and pressure, gear positions switch.It is appreciated that these are joined
Number can be as desired to select part or all.
The input of electric machine controller 241 connects first group of sensor in brshless DC motor 110, needed for obtaining
The various parameters of motor.One control signal outfan of electric machine controller 241 then connects the signal input of motor driver 210
End.Motor driver 210 is managed by the program of electric machine controller 241 and controls.
The signal input part of entire car controller 243 respectively with the main driving signal output part of the accelerator pedal of pure electric automobile
And the brake signal outfan of pure electric automobile connects.The input of variable-speed controller 244 connects second group through wire harness correspondence
The signal output part of sensor.The input of the gear shifting operator 170 of the outfan of variable-speed controller 244 and buncher 120
End connects.
Electric machine controller 241, entire car controller 243 and variable-speed controller 244 are connected through vehicle-carrying communication bus.Vehicle-mounted logical
Letter bus e.g. fieldbus (CAN).
According to an embodiment, entire car controller 243 pass through car with variable-speed controller 244 and electric machine controller 241 simultaneously
Load bus two-way communication obtains in real time and comprises GES, accelerator pedal main driving signal, brake signal, motor speed and torque
The signal parameters such as load current, entire car controller 243 determines the operating mode residing for this pure electric automobile according to this information parameter, and should
Gear ratio corresponding to operating mode and become moment of torsion, instruction variable-speed controller 244 controls gear shifting operator 170 and performs.
More specifically, entire car controller 243 simultaneously and variable-speed controller 244 and electric machine controller 241 by vehicle-mounted always
Line two-way communication obtains in real time and comprises GES, accelerator pedal main driving signal, brake signal, motor speed and torque load(ing)
The signal parameters such as electric current, entire car controller 243 can make speed change point (shelves) and speed (km/h) in gear ratio according to GES
In the range of, full working scope realizes Real-time and Dynamic servo speed changing than becoming moment of torsion.Unrestricted as an example, various operating modes can include opening
Dynamic, normal travel, at a slow speed, middling speed, quickly, upward slope, uphill starting etc..
In addition, it is necessary to set automobile gear ratio under various operating modes.For example, 1 grade is maximum gear ratio, corresponding 0-
The speed of 10km/h；10 grades is minimum gear ratio, corresponds to the speed of 60-70km/h.Remaining speed change point (shelves) can be by car
Speed value decile is corresponding, sequentially enters shelves.Move back vehicle speed value corresponding to shelves to be less than into a grade vehicle speed value.For example, forward and back gear shift response
Speed is less than 10ms.It is thereby achieved that intelligent self-learning circulation gear ratio controls.
Entire car controller 243 is through the bus vehicle mounted network of vehicle-carrying communication and electric machine controller 241, variable-speed controller 244, BMS
242 are connected, and Each performs its own functions, collaborative control in real time, it is achieved the communication of internal data two-way exchange and resource-sharing.Entire car controller
243 can export according to motor external characteristics real-time servo Dynamic Matching, by drive assembly 100 reality in the case of not interrupting power
Existing intelligent stepless smoothes out without pause and transition in rhythm or melody speed change, makes motor be operated in optimal economic efficient speed/torque district, to reach to strengthen motor
The torque of drive assembly 100 and efficiency.In other words, on the premise of meeting the requirement of car load dynamic property, by entire car controller
243, electric machine controller 241, the drive assembly 100 of variable-speed controller 244 servo match control are exaggerated motor in full working scope
Output torque, energy-conservation driving, make motor always work in optimal efficiently torque district, thoroughly stop to overcome motor with peak value
The type of drive of power, peak torque, peak value big electric current high speed high energy consumption and duty, thus improve car load economy and
Dynamic property.
The work process of the drive system of the pure electric automobile that this utility model provides is as follows:
1. launch into idling operation (650 revs/min～700 revs/min)；
2. step on brake pedal on earth, select PRNDL gear；
3. take-off the brake parking brake；
4. slow pine brake pedal is to removing completely, and vehicle is automatically into wriggling jogging state (1～8km/h speed per hour)；
5. stepping on accelerator pedal vehicle realizes intelligence by the intention of driver according to real-time speed in the case of not interrupting power
Infinitely variable speeds, smoothes out the traveling energy-conservation driving of each operating mode without pause and transition in rhythm or melody.
Those skilled in the art can be obvious, above-mentioned exemplary embodiment of the present utility model can be carried out various amendment and change
Type is without departing from spirit and scope of the present utility model.Accordingly, it is intended to make this utility model cover at appended claims
And in the range of equivalent arrangements to amendment of the present utility model and modification.
Claims (7)
1. the drive assembly of a pure electric automobile, it is characterised in that include brshless DC motor and steel band type buncher
(CVT), this steel band type buncher includes:
Fluid torque-converter or clutch, the outfan of this brshless DC motor is solid with the input of this fluid torque-converter or clutch
Fixed connection；
Steel Belt Transmission combines, including driving pulley, driven pulley and the steel belt connecting this driving pulley and this driven pulley,
The outfan of this fluid torque-converter or clutch connects this driving pulley to drive this driving pulley to rotate；
Decelerator, including main reducing gear and differential mechanism, this main reducing gear connects this differential mechanism of driving, and this main reducing gear includes gear
Group, the output shaft of this driven pulley connects this gear train.
The drive system of a kind of pure electric automobile the most as claimed in claim 1, it is characterised in that described brshless DC motor
Motor cabinet is bolted on the shell of described steel band type buncher.
3. the drive system of a pure electric automobile, it is characterised in that include motor driver, entire car controller (VCU), motor
Controller (MCU), variable-speed controller (TCU) and drive assembly as claimed in claim 1 or 2, wherein,
This motor driver electrically connects this brshless DC motor, and the outfan of this steel band type buncher connects the wheel of driving wheel
Axle；
Be provided with respectively in order to measure first group of sensor of following at least part of parameter in this brshless DC motor: rotating speed, voltage,
Electric current, torque, the input of this electric machine controller connects this first group of sensor；
The signal input part of this motor driver connects the control signal outfan of this electric machine controller；
The signal input part of this entire car controller respectively with the accelerator pedal of this pure electric automobile main driving signal output part and should
The brake signal outfan of pure electric automobile connects；
Gear shifting operator it is provided with and respectively in order to measure second group of following at least part of parameter in this steel band type buncher
Sensor: clutch, this driving pulley and this driven pulley rotating speed and pressure, gear positions switch, the input of this variable-speed controller
End connects this second group of sensor, and the outfan of this variable-speed controller is connected with this gear shifting operator input；
This entire car controller, electric machine controller and variable-speed controller are connected through vehicle-carrying communication bus；
Wherein this entire car controller is simultaneously and this variable-speed controller and this electric machine controller are by this vehicle-carrying communication bus two-way
Obtain time reliable and comprise GES, accelerator pedal main driving signal, brake signal, motor speed and the one of torque load(ing) electric current
Group parameter, according to the operating mode residing for this this pure electric automobile of group parameter determination, and gear ratio corresponding to this operating mode and become moment of torsion, refer to
Make this variable-speed controller control this gear shifting operator perform.
The drive system of a kind of pure electric automobile the most as claimed in claim 3, it is characterised in that this first group of sensor is also surveyed
Amount temperature.
The drive system of a kind of pure electric automobile the most as claimed in claim 3, it is characterised in that this second group of sensor is also surveyed
Gauging pressure, oil temperature.
The drive system of a kind of pure electric automobile the most as claimed in claim 3, it is characterised in that turning of this brshless DC motor
Speed is 0-3500rmp/min.
The drive system of a kind of pure electric automobile the most as claimed in claim 3, it is characterised in that forward and back gear shift response speed
For less than 10ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620490553.4U CN205836531U (en) | 2016-05-25 | 2016-05-25 | The drive system of pure electric automobile and drive assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620490553.4U CN205836531U (en) | 2016-05-25 | 2016-05-25 | The drive system of pure electric automobile and drive assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205836531U true CN205836531U (en) | 2016-12-28 |
Family
ID=57624035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620490553.4U Expired - Fee Related CN205836531U (en) | 2016-05-25 | 2016-05-25 | The drive system of pure electric automobile and drive assembly thereof |
Country Status (1)
| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054035A (en) * | 2017-06-14 | 2017-08-18 | 上海瑞昱荣科新能源汽车有限公司 | The transmission power assembly apparatus of pure electric automobile |
| CN108275006A (en) * | 2018-02-06 | 2018-07-13 | 王世美 | A kind of solar power vehicle device |
| CN110027406A (en) * | 2019-06-03 | 2019-07-19 | 电子科技大学中山学院 | Speed change mechanism of integrated electric drive system of passenger car |
| CN110329062A (en) * | 2019-07-12 | 2019-10-15 | 奇瑞新能源汽车股份有限公司 | Power assembly and electric car suitable for electric car |
| US20200007061A1 (en) * | 2018-06-30 | 2020-01-02 | Robert Bosch Gmbh | Sensor Device for an Electric Machine, Method for the Operation of a Sensor Device |
-
2016
- 2016-05-25 CN CN201620490553.4U patent/CN205836531U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054035A (en) * | 2017-06-14 | 2017-08-18 | 上海瑞昱荣科新能源汽车有限公司 | The transmission power assembly apparatus of pure electric automobile |
| CN107054035B (en) * | 2017-06-14 | 2023-07-21 | 上海瑞昱汽车有限公司 | Transmission power assembly device for pure electric vehicle |
| CN108275006A (en) * | 2018-02-06 | 2018-07-13 | 王世美 | A kind of solar power vehicle device |
| US20200007061A1 (en) * | 2018-06-30 | 2020-01-02 | Robert Bosch Gmbh | Sensor Device for an Electric Machine, Method for the Operation of a Sensor Device |
| US11489470B2 (en) * | 2018-06-30 | 2022-11-01 | Robert Bosch Gmbh | Sensor device for an electric machine, method for the operation of a sensor device |
| CN110027406A (en) * | 2019-06-03 | 2019-07-19 | 电子科技大学中山学院 | Speed change mechanism of integrated electric drive system of passenger car |
| CN110329062A (en) * | 2019-07-12 | 2019-10-15 | 奇瑞新能源汽车股份有限公司 | Power assembly and electric car suitable for electric car |
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Granted publication date: 20161228 Termination date: 20210525 |
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| CF01 | Termination of patent right due to non-payment of annual fee |