CN208164753U - Electric vehicle motor transmission system - Google Patents
Electric vehicle motor transmission system Download PDFInfo
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- CN208164753U CN208164753U CN201820517162.6U CN201820517162U CN208164753U CN 208164753 U CN208164753 U CN 208164753U CN 201820517162 U CN201820517162 U CN 201820517162U CN 208164753 U CN208164753 U CN 208164753U
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- speed changer
- clutch
- motor
- differential mechanism
- speed
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Abstract
The utility model discloses a kind of electric vehicle motor transmission system, including：Motor, the motor driver for driving the motor, clutch system, by the motor provide power speed change system, differential mechanism and the wheel shaft being connect with the differential mechanism, the speed change system includes at least one speed changer.Wherein, the clutch system includes the first clutch and second clutch to work in connected state with selecting a property, first rotation of the first clutch in connection status from the motor is output to the differential mechanism, and the second clutch second rotation of the speed changer output in connection status is output to the differential mechanism.
Description
Technical field
This application involves electric vehicle more particularly to electric vehicle drive technologies.
Background technique
Pure electric vehicle has many advantages, such as environmental protection, energy conservation, and development in recent years is increasingly more and more prosperous, has greatly some day
Replace the trend of gasoline car.But at present electric vehicle power drive system otherwise use electric-machine directly-driven, too simple, Wu Fashi
The compatibility of existing low-speed big starting climbing and high speed small torque high speed traveling and downhill performance；Become using complicated automobile
Quick change retaining device increases the production cost of electric vehicle.
Utility model content
The embodiments of the present invention provide a kind of electric vehicle motor transmission system, including motor, for driving the electricity
The motor driver of machine, clutch system, the speed change system that power is provided by the motor, differential mechanism and with the differential mechanism
The wheel shaft of connection, the speed change system include at least one speed changer, wherein the clutch system includes working with selecting a property
First clutch and second clutch under bonding state, the first clutch in connection status from the motor
One rotation is output to the differential mechanism, the second rotation quilt of second clutch speed changer output in connection status
It is output to the differential mechanism.
Preferably, the speed changer is the first speed changer, the speed change system further includes the second speed changer, described first from
Clutch in connection status described in the second speed changer output described first turn to the differential mechanism, first speed changer and the
Two speed changers are arranged in the same gear-box or separately positioned in different gear-boxes.
Preferably, first rotation and the second rotation are originated from the same root output shaft of the motor.
Preferably, the first clutch is set between the output shaft and differential mechanism of the motor with by the output shaft
It is connected or separated with differential mechanism, the second clutch is set between the speed changer and differential mechanism, and the clutch system is also
Including the third clutch being set between the output shaft and speed changer of the motor；Or
The motor be slowspeed machine, the first clutch be set to the slowspeed machine output shaft and differential mechanism it
Between the output shaft to be connected or separated with differential mechanism, the second clutch be set to the speed changer and differential mechanism it
Between；Or
The speed changer is the first speed changer, and the speed change system further includes the second speed changer, and the first clutch is set
It is placed between the output shaft of the motor and the second speed changer or is set between second speed changer and differential mechanism, it is described
Second clutch is set between first speed changer and differential mechanism, and the clutch system further includes being set to the motor
Third clutch between output shaft and the first speed changer；Or
The speed changer be the first speed changer, the speed change system further includes the second speed changer, second speed changer with
The output axis connection, the first clutch are set between second speed changer and differential mechanism, the second clutch
It is set between first speed changer and differential mechanism, first speed changer is connect with second speed changer；Or
The speed changer be the first speed changer, the speed change system further includes the second speed changer, second speed changer with
The output axis connection, the first clutch are set between second speed changer and differential mechanism, the second clutch
It is set between first speed changer and differential mechanism, the clutch system further includes being set to second speed changer and first
Third clutch between speed changer.
Preferably, the motor has the first output shaft and the second output shaft, it is defeated that first rotation is originated from described first
Shaft, second rotation are originated from second output shaft.
Preferably, the speed changer is the first speed changer, the speed change system further includes the second speed changer, described first from
Clutch is set between first output shaft and the second speed changer or is set between second speed changer and differential mechanism,
The second clutch is set between first speed changer and differential mechanism, and the clutch system further includes being set to described
Third clutch between two output shafts and the first speed changer；Or
The first clutch is set between first output shaft and differential mechanism with by first output shaft and poor
Fast device connects or separates, and the second clutch is set between the speed changer and differential mechanism, and the clutch system further includes
The third clutch being set between second output shaft and speed changer.
Preferably, first speed changer is that gear ratio is higher than second speed changer, the first clutch is set to
Between the motor and the second speed changer, the second clutch is set between the motor and the first speed changer, it is described from
Collaboration system further includes the third clutch being set between first speed changer and differential mechanism, first speed changer and second
The coaxial setting of the output shaft of speed changer.
Preferably, the motor driver is configured as with driving the selection of Motor in permanent torque and invariable power state
Lower operation.
Preferably, the motor is pole-changing motor.
Preferably, the pole-changing motor is asynchronous machine, synchronous motor, brshless DC motor or reluctance motor, the electricity
Machine driver is stepless speed regulating drive, is variable-frequency governor, inverter or brushless direct current motor driver.
Electric vehicle motor transmission system in the utility model preferred embodiment, using stepless speed adjusting gear, pole-changing motor and 2
The combination of the speed changer of kind no-load voltage ratio, structure is simple, at low cost, improves the compatible performance of the small torque of low-speed big/high speed.
Detailed description of the invention
Fig. 1 is the structural block diagram of the electric vehicle motor transmission system of one embodiment of the application；
Fig. 2 shows the electric vehicle motor transmission systems of one embodiment of the application；
Fig. 3 is the structural block diagram of the electric vehicle motor transmission system of Fig. 2；
Fig. 4 is the revolving speed for being output to differential mechanism-torque working curve of the electric vehicle motor transmission system of Fig. 2；
Fig. 5 to Figure 12 is the structural block diagram of the electric vehicle motor transmission system of the application other embodiments.
Specific embodiment
The utility model is described in detail referring to the drawings.
Refering to fig. 1, the utility model embodiment provides a kind of electric vehicle motor transmission system 10, including motor 12, is used for
Drive the motor driver 14 of the motor 12, clutch system, speed change system, the differential mechanism 16 of power are provided by the motor with
And the wheel shaft 18 connecting with the differential mechanism 16, the speed change system include at least one speed changer 20, wherein the clutch system
System includes the first clutch 22 and second clutch 24 to work with selecting a property in connected state, and the first clutch 22 exists
The first rotation when connection status from the motor is output to the differential mechanism 16, and the second clutch 24 is in connection shape
The second rotation that the speed changer 20 exports when state is output to the differential mechanism 16.It should be understood that the first rotation can be
Differential mechanism 16 is directly output to by motor 12, is also possible to be output to differential mechanism 16 indirectly by another speed changer.
Preferably, motor 12 is pole-changing motor, in the electric vehicle course of work, the stator winding that motor 12 can be changed is extremely right
Number, so that motor be made to have different rated speed and torque, motor 12 can be single output shaft driving, or be also possible to double
Output shaft driving, type for example can be asynchronous machine, synchronous motor, brshless DC motor, reluctance motor etc..Motor driven
Device 14 is stepless electronic speed regulation driver, such as can be variable-frequency governor, inverter, brushless direct current motor driver.Differential
Device 16 connects left and right two wheels of electric vehicle by wheel shaft 18, and the realization of two wheels can be made to rotate with different rotating speeds, can be with
Understand, differential mechanism and wheel can be front-wheel drive, be also possible to 4 wheel drive of rear wheel drive or front and back.
Fig. 2 and Fig. 3 shows the electric vehicle motor transmission system 30 of another embodiment of the application.In Fig. 2, electric vehicle is front-wheel
Driving, only two front-wheels 32 are driven, two rear-wheel 34 is not driven.The power driving system for electric vehicle 30 includes motor
12, for driving the motor driver (not shown) of the motor 12, clutch system, providing power by the motor 12
Speed change system, differential mechanism 16 and the front axle 18 being connect with the differential mechanism 16.Wherein, the speed change system includes the first change
Fast device 20 and the second speed changer 21, wherein the first speed changer 20 can be high-speed gear changer (also referred to as higher speed gear case),
Second speed changer 21 can be low-speed gear speed changer (also referred to as low speed gearbox).In Fig. 3, the clutch system includes first
Clutch 22, second clutch 24 and third clutch 26, three for example can be electromagnetic clutch.There are two defeated for the tool of motor 12
Shaft 36 and 37 stretches out motor from the axial ends of motor 12 respectively, the first output shaft (also referred to as 1 axis of motor) 36 through first from
Clutch 22 connects the first speed changer 20,20 connected with differential 16 of the first speed changer, and the second output shaft (also referred to as 2 axis of motor) 37 passes through
Second clutch 24 connects the second speed changer 21, and the second speed changer 21 is through 26 connected with differential 16 of third clutch, the first speed change
Device 20 and the second speed changer 21 have common output shaft 28 (see Fig. 2).
In the present embodiment, motor 12 can for example work under two kinds of number of poles states, have different rated speed and volume
Determine torque, the first speed changer 20 and the second speed changer 21 have different gear ratio, can be combined into four kinds of operating modes.
Following table one shows four kinds of operating modes of the motor transmission system in a specific example, wherein pole-changing motor is
High-speed motor can work in 2 poles and two kinds of 4 poles number of poles, such as corresponding Rated motor revolving speed is 10000 rpms respectively
(rpm) and 5000rpm, the first speed changer 20 are high speed changer, and gear ratio is, for example, 1：4, the second speed changer 21 is low speed change
Device, gear ratio are, for example, 1：16, the gear ratio of the second speed changer 21 is higher than the gear ratio of the first speed changer 20.N table in table
Show clutch be in an off state perhaps speed changer be in off position Y indicate clutch be in connection status or speed change
Device is in running order.Two kinds of pole count machines of stepless speed regulation add the gearbox designs of 2 kinds of no-load voltage ratios in this example, and 4 kinds of volumes may be implemented
Determine the stepless speed regulation of torque/revolving speed, realizes that the smooth adjustment of revolving speed and high speed are small in broader velocity interval to make to export
Torque, low speed high torque working condition.
Table 1
In the present embodiment, motor driver can be configured to driving motor 12 selectively in permanent torque and invariable power state
Lower speed governing operation.Fig. 4 is exemplarily illustrated in example shown in table 1, and system is output to revolving speed-torque working curve of differential mechanism.
There are many overlapping working regions in the 8 speed regulation areas shown in figure, and control strategy can regard reality there are many kinds of combination
It needs to select.
It should be understood that each clutch and the first speed changer 20 and the second speed changer 21 can be set in the same gear-box
In it is (such as conventional neutral gear, 1 grade, 2 grades of gearboxes) or separately positioned in different gear-boxes.
In this example with stepless electronic speed regulator, be combined with the high speed pole-changing motor of 2 kinds of number of magnetic poles and the speed change of 2 kinds of no-load voltage ratios
The electric vehicle driving method of case, structure is simple, small in size, light weight and cost is low, 4 kinds of perseverance torque speed regulation and 4 kinds of weak magnetics can be achieved
Speed adjustable range substantially increases the small torque compatible driving performance of low-speed big/high speed, especially suitable for cheap and good-quality high property
Electric automobiles can be driven.
It is appreciated that motor is also possible to only a kind of motor of number of poles in more embodiments, exportable 2 kinds at this time
Nominal torque and revolving speed or motor are also possible to the motor more than two kinds of numbers of poles, a variety of nominal torques exportable at this time and turn
Speed.
Fig. 5 shows the electric vehicle motor transmission system 40 of another embodiment of the utility model, the motor in the system and Fig. 3
Transmission system 30 is similar, and difference place is that in motor transmission system 40, first clutch 22 is not arranged in the defeated of motor
Out between 1 axis 36 and higher speed gear case 20, but it is arranged between higher speed gear case 20 and differential mechanism 26, when can make vehicle sliding
Absolutely not gear-box is lost.
Fig. 6 shows the electric vehicle motor transmission system 42 of another embodiment of the utility model, the motor in the system and Fig. 3
Transmission system 30 is similar, and difference place is, in motor transmission system 42, instead of there are two output shafts for motor 12, only
There is single output shaft 36, high speed is transmitted to by the rotation that first clutch 22 and second clutch 24 can control output shaft 36
Gearbox 20 is transmitted to low speed gearbox 21.
Fig. 7 shows the electric vehicle motor transmission system 44 of another embodiment of the utility model, the motor in the system and Fig. 6
Transmission system 42 is similar, and difference place is that in motor transmission system 44, first clutch 22 is not arranged in the defeated of motor
Between shaft 36 and higher speed gear case 20, but it is arranged between higher speed gear case 20 and differential mechanism 26, when can make vehicle sliding
Absolutely not gear-box is lost.
Fig. 8 shows the electric vehicle motor transmission system 46 of another embodiment of the utility model, the motor in the system and Fig. 3
Transmission system 30 is similar, and difference place is, in motor transmission system 46, does not set change between 1 axis 36 of motor and differential mechanism 26
Fast case 20, the rotation that 1 axis 36 of motor exports when first clutch 22 is in connection status can be directly delivered to differential mechanism, make to be driven
System is simpler.
Fig. 9 shows the electric vehicle motor transmission system 50 of another embodiment of the utility model, the motor in the system and Fig. 8
Transmission system 46 is similar, and difference place is, in motor transmission system 52, instead of there are two output shafts for motor 12, only
There is single output shaft 36, is directly delivered to by the rotation that first clutch 22 and second clutch 24 can control output shaft 36
Differential mechanism 16 is transmitted to gearbox 21.
Figure 10 shows the electric vehicle motor transmission system 54 of another embodiment of the utility model, the electricity in the system and Fig. 7
Machine transmission system 44 is similar, and difference place is that in motor transmission system 54, low speed gearbox 21 is not through second clutch
24 with the output axis connection of motor, but be connected in series through the output shaft of second clutch 24 and higher speed gear case 20, by the
The rotation that one clutch 22 and second clutch 24 can control the output of higher speed gear case 20 is directly delivered to differential mechanism 16 or passes
It is delivered to low speed gearbox 21, improves the utilization rate of higher speed gear case, reduces the no-load voltage ratio of low speed gearbox.
Figure 11 shows the electric vehicle motor transmission system 56 of another embodiment of the utility model, in the present embodiment, power train
System only has speed changer (being low speed gearbox in the present embodiment) 21, and clutch system includes two clutches 22 and 26, electricity
Machine 12 is preferably slowspeed machine, and slowspeed machine has single output shaft, and the output shaft of motor is directly connected to difference through clutch 22
Fast device, and connect low speed gearbox 21 simultaneously, low speed gearbox 21 through 26 connected with differential of clutch, by clutch 22 and from
The rotation that clutch 26 can control the output shaft output of slowspeed machine is directly delivered to differential mechanism 16 or becomes through low speed gearbox 21
It is transmitted to differential mechanism 16 after speed, reduces a clutch compared with Fig. 9.
Figure 12 shows the electric vehicle motor transmission system 58 of another embodiment of the utility model, the electricity in the system and Figure 12
Machine transmission system 54 is similar, difference place be, do not set clutch between higher speed gear case 20 and low speed gearbox 21, by from
Clutch 22 and clutch 26 control the rotation that higher speed gear case 20 exports and are directly delivered to differential mechanism 16 or through low speed gearbox 21
It is transmitted to differential mechanism 16 after speed change, reduces a clutch compared with Figure 10.
It should be noted that the utility model is not limited to above embodiment, creation essence according to the present utility model
Mind, those skilled in the art can also make other variations, these variations done according to the creative spirit of the utility model, example
The clutch of Figure 11, Figure 12 are such as moved on to the left side of low speed gearbox 21, it is claimed to be all included in the utility model
Within the scope of.
Claims (10)
1. a kind of electric vehicle motor transmission system, including：Motor, the motor driver for driving the motor, clutch system,
Speed change system, differential mechanism and the wheel shaft connecting with the differential mechanism of power, the speed change system packet are provided by the motor
Include at least one speed changer, wherein the clutch system include the first clutch that works in connected state with selecting a property and
Second clutch, first rotation of the first clutch in connection status from the motor are output to the differential
Device, the second clutch second rotation of the speed changer output in connection status are output to the differential mechanism.
2. the system as claimed in claim 1, which is characterized in that the speed changer is the first speed changer, and the speed change system is also
Including the second speed changer, the first clutch in connection status described in the second speed changer output described first turn to it is described
Differential mechanism, first speed changer and the second speed changer are arranged in the same gear-box or separately positioned in different gears
In case.
3. the system as claimed in claim 1, which is characterized in that first rotation and the second rotation are originated from the same of the motor
A piece output shaft.
4. system as claimed in claim 3, it is characterised in that：
The first clutch is set between the output shaft and differential mechanism of the motor to connect the output shaft and differential mechanism
It connects or separates, the second clutch is set between the speed changer and differential mechanism, and the clutch system further includes being set to
Third clutch between the output shaft and speed changer of the motor；Or
The motor be slowspeed machine, the first clutch be set between the output shaft and differential mechanism of the slowspeed machine with
The output shaft is connected or separated with differential mechanism, the second clutch is set between the speed changer and differential mechanism；Or
Person
The speed changer is the first speed changer, and the speed change system further includes the second speed changer, and the first clutch is set to
Between the output shaft of the motor and the second speed changer or it is set between second speed changer and differential mechanism, described second
Clutch is set between first speed changer and differential mechanism, and the clutch system further includes the output for being set to the motor
Third clutch between axis and the first speed changer；Or
The speed changer be the first speed changer, the speed change system further includes the second speed changer, second speed changer with it is described
Axis connection is exported, the first clutch is set between second speed changer and differential mechanism, the second clutch setting
Between first speed changer and differential mechanism, first speed changer is connect with second speed changer；Or
The speed changer be the first speed changer, the speed change system further includes the second speed changer, second speed changer with it is described
Axis connection is exported, the first clutch is set between second speed changer and differential mechanism, the second clutch setting
Between first speed changer and differential mechanism, the clutch system further includes being set to second speed changer and the first speed change
Third clutch between device.
5. the system as claimed in claim 1, which is characterized in that the motor has the first output shaft and the second output shaft, institute
The first rotation is stated from first output shaft, second rotation is originated from second output shaft.
6. system as claimed in claim 5, it is characterised in that：
The speed changer is the first speed changer, and the speed change system further includes the second speed changer, and the first clutch is set to
Between first output shaft and the second speed changer or be set between second speed changer and differential mechanism, described second from
Clutch is set between first speed changer and differential mechanism, the clutch system further include be set to second output shaft with
Third clutch between first speed changer；Or
The first clutch is set between first output shaft and differential mechanism with by first output shaft and differential mechanism
It connects or separates, the second clutch is set between the speed changer and differential mechanism, and the clutch system further includes setting
Third clutch between second output shaft and speed changer.
7. system as claimed in claim 2, which is characterized in that first speed changer is that gear ratio is higher than second speed change
Device, the first clutch are set between the motor and the second speed changer, and the second clutch is set to the motor
Between the first speed changer, the clutch system further includes the third clutch being set between first speed changer and differential mechanism
Device, the first speed changer setting coaxial with the output shaft of the second speed changer.
8. system as described in any one of claim 1 to 7, which is characterized in that the motor driver is configured as driving institute
It is run under permanent torque and invariable power state with stating selection of Motor.
9. system as described in any one of claim 1 to 7, which is characterized in that the motor is pole-changing motor.
10. system as claimed in claim 9, which is characterized in that the pole-changing motor is asynchronous machine, synchronous motor, brushless
Direct current generator or reluctance motor, the motor driver are stepless speed regulating drive, variable-frequency governor, inverter or brushless direct-current
Motor driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820517162.6U CN208164753U (en) | 2018-04-12 | 2018-04-12 | Electric vehicle motor transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820517162.6U CN208164753U (en) | 2018-04-12 | 2018-04-12 | Electric vehicle motor transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN208164753U true CN208164753U (en) | 2018-11-30 |
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ID=64372682
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820517162.6U Active CN208164753U (en) | 2018-04-12 | 2018-04-12 | Electric vehicle motor transmission system |
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| Country | Link |
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| CN (1) | CN208164753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454392A (en) * | 2018-04-12 | 2018-08-28 | 青岛千钧投资企业（有限合伙） | Electric vehicle motor transmission system |
-
2018
- 2018-04-12 CN CN201820517162.6U patent/CN208164753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454392A (en) * | 2018-04-12 | 2018-08-28 | 青岛千钧投资企业（有限合伙） | Electric vehicle motor transmission system |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191018 Address after: 518000 Nanshan Internet Innovation and Creative Service Base Phase II A202, No. 126 Shekou Street Bay Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen genius Power Technology Co., Ltd. Address before: 266200 room 2002, 672 sea court, Yanqing Road, Jimo, Qingdao, Shandong Patentee before: Qingdao Qian Jun investment enterprise (limited partnership) |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210917 Address after: 518000 1501, building 5, South Taiyun chuanggu Park, Southeast of the intersection of Guangming Avenue and Dongchang Road, Tangwei community, Fenghuang street, Guangming District, Shenzhen, Guangdong Province Patentee after: Shenzhen dousuo Technology Co.,Ltd. Address before: 518000 Nanshan Internet Innovation and Creative Service Base Phase II A202, No. 126 Shekou Street Bay Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Geniusmart Technologies Co.,Ltd. |
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| TR01 | Transfer of patent right |