CN108454392A - Electric vehicle motor transmission system - Google Patents
Electric vehicle motor transmission system Download PDFInfo
- Publication number
- CN108454392A CN108454392A CN201810325586.7A CN201810325586A CN108454392A CN 108454392 A CN108454392 A CN 108454392A CN 201810325586 A CN201810325586 A CN 201810325586A CN 108454392 A CN108454392 A CN 108454392A
- Authority
- CN
- China
- Prior art keywords
- speed changer
- clutch
- motor
- differential mechanism
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention 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, the first clutch first rotation from the motor in connection status 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 technology
Pure electric vehicle has many advantages, such as environmental protection, energy saving, and development in recent years is increasingly more and more prosperous, has greatly some day
Replace the trend of gasoline car.Or but the power drive system of electric vehicle is using electric-machine directly-driven, too simple, Wu Fashi at present
Existing low-speed big starts the compatibility of 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.
Invention content
The embodiment of the present invention provides a kind of electric vehicle motor transmission system, including motor, for driving the motor
Motor driver, clutch system are connect by the speed change system of motor offer power, differential mechanism and with the differential mechanism
Wheel shaft, the speed change system includes at least one speed changer, wherein the clutch system include be operated in combination with selecting a property
First clutch under state and second clutch, first turn in connection status from the motor of the first clutch
Dynamic to be output to the differential mechanism, the second clutch second rotation of the speed changer output in connection status is exported
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 same root output shaft of the rotation from 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 is slowspeed machine, the first clutch be set to the output shaft of the slowspeed machine 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 be set between first output shaft and differential mechanism with by first output shaft with it is 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, which is 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 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 present pre-ferred embodiments, using stepless speed adjusting gear, pole-changing motor and 2 kinds of changes
The combination of the speed changer of ratio, it is simple in structure, at low cost, improve the small torque compatibility performance of low-speed big/high speed.
Description of the drawings
Fig. 1 is the structure 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 structure diagram of the electric vehicle motor transmission system of Fig. 2；
Fig. 4 is the rotating 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 structure diagram of the electric vehicle motor transmission system of the application other embodiment.
Specific implementation mode
The present invention is described in detail referring to the drawings.
Refering to fig. 1, the embodiment of the present invention provides a kind of electric vehicle motor transmission system 10, including motor 12, for driving
The motor driver 14 of the motor 12, clutch system, the speed change system that power is provided by the motor, differential mechanism 16 and with
The wheel shaft 18 that the differential mechanism 16 connects, the speed change system includes at least one speed changer 20, wherein the clutch system packet
First clutch 22 and the second clutch 24 to work with selecting a property in connected state is included, the first clutch 22 is connecting
The first rotation from the motor is output to the differential mechanism 16 when state, and the second clutch 24 is in connection status
The second rotation that the speed changer 20 exports is output to the differential mechanism 16.It should be understood that the first rotation can be by electricity
Machine 12 is directly output to differential mechanism 16, can also be 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, to make motor that there is different rated speeds and torque, motor 12 can be single output shaft drivings, or can also be double
Output shaft drives, and type is such as can be asynchronous machine, synchronous motor, brshless DC motor, reluctance motor.Motor drives
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 be rotated with different rotating speeds, can be with
Understand, differential mechanism and wheel can be front-wheel drives, can also be rear wheel drive or front and back 4 wheel drive.
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 trailing 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 both 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, 37 warp of the second output shaft (also referred to as 2 axis of motor)
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 be for example operated 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 electric expreess locomotive can be operated in 2 poles and two kinds of 4 poles number of poles, such as corresponding Rated motor rotating 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 tables in table
Show that clutch is off either speed changer and is in off position Y and indicates that clutch is 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
The stepless speed regulation for determining torque/rotating speed, to make output be realized in broader velocity interval, the smooth adjustment of rotating speed and high speed are small
Torque, low speed high torque working condition.
Table 1
In the present embodiment, motor driver can be configured as 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, rotating speed-torque working curve of system output to differential mechanism.
The 8 speed governing areas shown in figure have many overlapping working regions, control strategy that can be regarded practical 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 arranged 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 type of drive of case, it is simple in structure, small, light weight and cost is low, 4 kinds of permanent torque speed governing 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 in more embodiments, motor can also be only a kind of motor of number of poles, exportable 2 kinds at this time
Nominal torque and rotating speed or motor can also be a variety of nominal torques exportable at this time and to turn more than the motor of two kinds of numbers of poles
Speed.
Fig. 5 shows the electric vehicle motor transmission system 40 of another embodiment of the present invention, the system and the motor drive in Fig. 3
System 30 is similar, and difference place is that in motor transmission system 40, first clutch 22 is not arranged in the output 1 of motor
Between axis 36 and higher speed gear case 20, and it is provided between higher speed gear case 20 and differential mechanism 26, it is complete when can make vehicle sliding
It is lost entirely without gear-box.
Fig. 6 shows the electric vehicle motor transmission system 42 of another embodiment of the present invention, the system and the motor drive in Fig. 3
System 30 is similar, and difference place is, in motor transmission system 42, instead of there are two output shafts for motor 12, only single
Root output shaft 36, the rotation that output shaft 36 can be controlled by first clutch 22 and second clutch 24 are transmitted to higher speed gear
Case 20 is transmitted to low speed gearbox 21.
Fig. 7 shows the electric vehicle motor transmission system 44 of another embodiment of the present invention, the system and the motor drive in Fig. 6
System 42 is similar, and difference place is that in motor transmission system 44, first clutch 22 is not arranged in the output shaft of motor
Between 36 and higher speed gear case 20, and it is provided between higher speed gear case 20 and differential mechanism 26, it is complete when can make vehicle sliding
There is no gear-box loss.
Fig. 8 shows the electric vehicle motor transmission system 46 of another embodiment of the present invention, the system and the motor drive in Fig. 3
System 30 is similar, and difference place is, in motor transmission system 46, gearbox is not set between 1 axis 36 of motor and differential mechanism 26
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 transmission system
It is simpler.
Fig. 9 shows the electric vehicle motor transmission system 50 of another embodiment of the present invention, the system and the motor drive in Fig. 8
System 46 is similar, and difference place is, in motor transmission system 52, instead of there are two output shafts for motor 12, only single
Root output shaft 36, the rotation that output shaft 36 can be controlled by first clutch 22 and second clutch 24 are directly delivered to differential
Device 16 is transmitted to gearbox 21.
Figure 10 shows that the electric vehicle motor transmission system 54 of another embodiment of the present invention, the system are passed with the motor in Fig. 7
Dynamic system 44 is similar, and difference place is, in motor transmission system 54, low speed gearbox 21 be not through second clutch 24 with
The output axis connection of motor, but be connected in series with through second clutch 24 and the output shaft of higher speed gear case 20, by first from
The rotation that clutch 22 and second clutch 24 can control the output of higher speed gear case 20 is directly delivered to differential mechanism 16 or is transmitted 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 present invention, and in the present embodiment, transmission system is only
For tool there are one speed changer (being low speed gearbox in the present embodiment) 21, clutch system includes two clutches 22 and 26, motor 12
There is single output shaft, the output shaft of motor to be directly connected to differential mechanism through clutch 22 for preferably slowspeed machine, slowspeed machine,
And low speed gearbox 21 is connected simultaneously, low speed gearbox 21 passes through clutch 22 and clutch through 26 connected with differential of clutch
26 rotations that can control the output shaft output of slowspeed machine are directly delivered to differential mechanism 16 or after 21 speed change of low speed gearbox
It is transmitted to differential mechanism 16, reduces a clutch compared with Fig. 9.
Figure 12 shows that the electric vehicle motor transmission system 58 of another embodiment of the present invention, the system are passed with the motor in Figure 12
Dynamic system 54 is similar, and difference place is, does not set clutch between higher speed gear case 20 and low speed gearbox 21, passes through clutch
22 and clutch 26 control the rotation of 20 output of higher speed gear case and be directly delivered to differential mechanism 16 or through 21 speed change of low speed gearbox
After be transmitted to differential mechanism 16, reduce a clutch compared with Figure 10.
It should be noted that the invention is not limited in the above embodiment, creative spirit according to the present invention, this field
Technical staff can also make other variations, the variation that these creative spirit according to the present invention are done, such as by Figure 11, Figure 12
Clutch move on to the left side etc. of low speed gearbox 21, all should include within scope of the present invention.
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 being connect 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, the first clutch first rotation from the motor in connection status 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 same from 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 detaches, 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
It states the first rotation and is originated 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 |
|---|---|---|---|
| CN201810325586.7A CN108454392A (en) | 2018-04-12 | 2018-04-12 | Electric vehicle motor transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325586.7A CN108454392A (en) | 2018-04-12 | 2018-04-12 | Electric vehicle motor transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108454392A true CN108454392A (en) | 2018-08-28 |
Family
ID=63235236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810325586.7A Pending CN108454392A (en) | 2018-04-12 | 2018-04-12 | Electric vehicle motor transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108454392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910895A (en) * | 2021-10-20 | 2022-01-11 | 宋志全 | New energy automobile speed change system |
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| CN2163259Y (en) * | 1993-02-13 | 1994-04-27 | 马惠媛 | Fan and pump speed governor |
| JP2007232198A (en) * | 2006-03-03 | 2007-09-13 | Toyota Motor Corp | Driving force distributing device |
| CN101212197A (en) * | 2006-12-27 | 2008-07-02 | 比亚迪股份有限公司 | AC motor system with variable number of pole pairs for electric automobile |
| CN101293475A (en) * | 2007-04-23 | 2008-10-29 | 鲁泊凡 | Non gear axle motor driven electric car |
| CN103032526A (en) * | 2012-12-19 | 2013-04-10 | 冯关华 | Two-speed dual clutch transmission drive unit for pure electric vehicle |
| CN103895596A (en) * | 2014-04-17 | 2014-07-02 | 吉林大学 | Heavy-duty vehicle gear-rack type secondary rear protection device |
| DE102013204227A1 (en) * | 2013-03-12 | 2014-09-18 | Zf Friedrichshafen Ag | Drive train for a vehicle and method for performing a load change |
| CN106696691A (en) * | 2016-11-18 | 2017-05-24 | 精进电动科技股份有限公司 | Horizontally-arranged single-power source vehicle drive assembly |
| CN208164753U (en) * | 2018-04-12 | 2018-11-30 | 青岛千钧投资企业（有限合伙） | Electric vehicle motor transmission system |
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2018
- 2018-04-12 CN CN201810325586.7A patent/CN108454392A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163259Y (en) * | 1993-02-13 | 1994-04-27 | 马惠媛 | Fan and pump speed governor |
| JP2007232198A (en) * | 2006-03-03 | 2007-09-13 | Toyota Motor Corp | Driving force distributing device |
| CN101212197A (en) * | 2006-12-27 | 2008-07-02 | 比亚迪股份有限公司 | AC motor system with variable number of pole pairs for electric automobile |
| CN101293475A (en) * | 2007-04-23 | 2008-10-29 | 鲁泊凡 | Non gear axle motor driven electric car |
| CN103032526A (en) * | 2012-12-19 | 2013-04-10 | 冯关华 | Two-speed dual clutch transmission drive unit for pure electric vehicle |
| DE102013204227A1 (en) * | 2013-03-12 | 2014-09-18 | Zf Friedrichshafen Ag | Drive train for a vehicle and method for performing a load change |
| CN103895596A (en) * | 2014-04-17 | 2014-07-02 | 吉林大学 | Heavy-duty vehicle gear-rack type secondary rear protection device |
| CN106696691A (en) * | 2016-11-18 | 2017-05-24 | 精进电动科技股份有限公司 | Horizontally-arranged single-power source vehicle drive assembly |
| CN208164753U (en) * | 2018-04-12 | 2018-11-30 | 青岛千钧投资企业（有限合伙） | Electric vehicle motor transmission system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910895A (en) * | 2021-10-20 | 2022-01-11 | 宋志全 | New energy automobile speed change system |
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