CN207207728U - The electric automobile drive assembly system of the double speed changes of bi-motor - Google Patents
The electric automobile drive assembly system of the double speed changes of bi-motor Download PDFInfo
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- CN207207728U CN207207728U CN201720923756.2U CN201720923756U CN207207728U CN 207207728 U CN207207728 U CN 207207728U CN 201720923756 U CN201720923756 U CN 201720923756U CN 207207728 U CN207207728 U CN 207207728U
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- gear
- jackshaft
- motor
- electric automobile
- driving gear
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Abstract
The utility model provides a kind of electric automobile drive assembly system of the double speed changes of bi-motor, including the first drive mechanism, the first gear, the second drive mechanism, the second gear, output mechanism and gearshift, wherein：First drive mechanism is used to drive the first gear；Second drive mechanism is used to drive the second gear；First gear and the second gear connect output mechanism respectively；The gearshift is arranged on output mechanism or is arranged on the first gear and the second gear.The utility model uses the multi-stage speed-reducing of variable-ratio to motor, efficiently reduce the axial dimension of power assembly, reduce the difficulty of system arrangement, compact overall structure, small volume, in light weight, two motor powers gearshifts are non-interference, can be controlled by the torque adjusting of motor and select appropriate gearshift opportunity to realize that power does not interrupt gearshift, reach stepless gearshift effect, improve the dynamic property and economy of vehicle.
Description
Technical field
Electric automobile transmission mechanism is the utility model is related to, in particular it relates to a kind of electric automobile of the double speed changes of bi-motor
Drive assembly system.
Background technology
The advantages of electric automobile cleanliness without any pollution, energy efficiency high and low noise so that the industrialization gesture of electric automobile can not
Gear.In the industrialization process of electric automobile, enterprise and client pay special attention to the reliability of electric automobile.
Drive system is one of critical component of electric automobile, and its reliability consideration is not only able to obtain motor in electric automobile
The reliability index of drive system, economic and practical Assessing Method of Reliability and Reliability Check standard are provided for industry, can
Make greater efforts to promote the industrialization of China's electric automobile, accelerate the fast development of China's electric automobile.
Current most of electric automobiles have a disadvantage in that structure using the drive system of single motor and fixed ratio reduction
Size is larger, is unfavorable for the arrangement in vehicle；When motor breaks down, vehicle will be unable to travel, and reliability has much room for improvement；
Single-stage speed reducing mechanism reduces the transmission efficiency of power assembly.
Utility model content
For in the prior art the defects of, the purpose of this utility model is to provide a kind of electric automobile of the double speed changes of bi-motor
Drive assembly system.
According to a kind of electric automobile drive assembly system of the double speed changes of bi-motor provided by the utility model, including the first drive
Motivation structure, the first gear, the second drive mechanism, the second gear, output mechanism and gearshift, wherein：It is described
First drive mechanism drives output mechanism by the first gear；Second drive mechanism is driven by the second gear
Output mechanism；First gear and the second gear connect output mechanism respectively；The gearshift is arranged at defeated
Go out in mechanism or be arranged on the first gear and the second gear.
Preferably, first drive mechanism includes the first motor, the first input shaft and the first input shaft actively
Gear, the first motor drive the first input shaft driving gear to rotate by the first input shaft；
Second drive mechanism includes the second motor, the second input shaft and the second input shaft driving gear, the
Two motors drive the second input shaft driving gear to rotate by the second input shaft.
Preferably, first gear includes the first jackshaft and the first speed change being arranged on the first jackshaft
Gear train；
Second gear includes the second jackshaft and the second stud gear group being arranged on the second jackshaft.
Preferably, the first stud gear group includes the first counter shaft driven gear, the first jackshaft top gear actively
Gear and the first jackshaft bottom gear driving gear；
The second stud gear group include the second counter shaft driven gear, the second jackshaft top gear driving gear and
Second jackshaft bottom gear driving gear.
Preferably, the output mechanism includes output shaft and the output gear group being arranged on the output shaft, described
Output gear group includes two output shaft top gear driven gears and output shaft bottom gear driven gear, two output shaft top gears
The first jackshaft top gear driving gear and the second jackshaft top gear driving gear are mediated respectively；Two output shaft bottom gears from
Moving gear mediates the first jackshaft bottom gear driving gear and and the second jackshaft bottom gear driving gear respectively.
Preferably, the gearshift is arranged on the first gear and the second gear；On first gear
Gearshift be used for combine the first jackshaft top gear driving gear or the first jackshaft bottom gear driving gear；Second becomes
Gearshift in fast mechanism is used to combine the second jackshaft top gear driving gear or the second jackshaft bottom gear driving tooth
Wheel.
Preferably, the gearshift is arranged on output shaft, the gearshift be used for combine output shaft top gear from
Moving gear or output shaft bottom gear driven gear.
Preferably, the gearshift includes synchronizer.
Compared with prior art, the utility model has following beneficial effect：
1st, the utility model is shifted gears using multi-stage speed-reducing, can use the motor of high speed, so as to which system effectiveness is high, quality
Gently, small volume, the course continuation mileage of electric automobile is greatly improved.
2nd, in the utility model motor export power by between input shaft and jackshaft gear pair and jackshaft with
Gear pair between output shaft is transferred to output shaft, realizes double reduction, obtains higher speed reducing ratio, improves transmission effect
Rate, the size of each gear is also therefore reduced, is advantageous to arrangement of the system in vehicle.
3rd, the utility model uses gear drive, power transmission efficiency height.
4th, the utility model uses Dual-motors Driving, and appropriate gearshift opportunity is controlled and select by the torque adjusting of motor
Power is realized without gearshift is interrupted, reaches the effect of stepless gearshift, the ride comfort of lifting vehicle traveling.
5th, bi-motor independent operating of the present utility model, when one of electrical fault, another motor is still normal
Task driven vehicle travels, and improves the reliability of dynamical system.
6th, when vehicle suddenly accelerates, two motors increase torque simultaneously and power coupling are realized on output shaft, lifting
The dynamic property of vehicle.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of the electric automobile drive assembly system of the double speed changes of bi-motor；
Fig. 2 is the structural representation of the change case of the electric automobile drive assembly system of the double speed changes of bi-motor.
Shown in figure：
The counter shaft driven gear 12 of first input shaft 1 second
The jackshaft 13 of first input shaft driving gear 2 second
The jackshaft bottom gear driving gear 14 of first counter shaft driven gear 3 second
The jackshaft top gear driving gear 15 of first jackshaft bottom gear driving gear 4 second
The synchronizer 16 of first jackshaft top gear driving gear 5 second
The output shaft top gear driven gear 17 of first jackshaft 6
The output shaft bottom gear driven gear 18 of output shaft bottom gear driven gear 7
The output shaft 19 of first synchronizer 8
The motor 20 of output shaft top gear driven gear 9 first
The motor 21 of second input shaft 10 second
Second input shaft driving gear 11
Embodiment
The utility model is described in detail with reference to specific embodiment.Following examples will be helpful to this area
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that to ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, some changes and improvements can also be made.
These belong to the scope of protection of the utility model.
As shown in figure 1, according to a kind of electric automobile drive assembly system of the double speed changes of bi-motor provided by the utility model,
Including the first input shaft 1, the first jackshaft 6, the second input shaft 10, the second jackshaft 13 and output shaft 19, described first is defeated
Enter and the first input shaft driving gear 2 is provided with axle 1, the first jackshaft is disposed with vertically on first jackshaft 6
Driven gear 3, the first jackshaft top gear driving gear 5, the first synchronizer 8 and the first jackshaft bottom gear driving gear 4,
Wherein：First counter shaft driven gear 3 engages the first input shaft driving gear 2；Second is provided with second input shaft 10
Input shaft driving gear 11, the second counter shaft driven gear 12, second is disposed with vertically on second jackshaft 13
Jackshaft top gear driving gear 15, the second synchronizer 16 and the second jackshaft bottom gear driving gear 14, wherein：In second
Countershaft driven gear 12 engages the second input shaft driving gear 11；Be disposed with the output shaft 19 output shaft top gear from
Moving gear 9, output shaft bottom gear driven gear 7, output shaft top gear driven gear 17, output shaft bottom gear driven gear 18,
The first jackshaft top gear driving gear 5, the first jackshaft bottom gear driving gear 4, the second jackshaft top gear are engaged respectively
The jackshaft bottom gear driving gear 14 of driving gear 15 and second；First motor 20 connects the first input shaft 1, the second driving
Motor 21 connects the second input shaft 10.
Further, the first input shaft 1, the first jackshaft 6, the second input shaft 10, the second jackshaft 13 and output shaft
19 be arranged in parallel.
The mode of operation of the electric automobile drive assembly system of the double speed changes of the present embodiment bi-motor is as follows：
Starting mode：First synchronizer 8 is combined with the first jackshaft bottom gear driving gear 4, the second synchronizer 16 and
Two jackshaft bottom gear driving gears 14 combine.The power of first motor 20 is by the first input shaft 1, the active of the first input shaft
Gear 2, the first counter shaft driven gear 3, the first synchronizer 8, the first jackshaft bottom gear driving gear 4, output shaft bottom gear
Output shaft 19 is transferred to after driven gear 7；The power of the second motor 21 is by the second input shaft 10, the second input shaft master simultaneously
Moving gear 11, the second counter shaft driven gear 12, the second synchronizer 16, the second jackshaft bottom gear driving gear 14, output shaft
Output shaft 19 is transferred to after bottom gear driven gear 18, final above-mentioned two motor is transferred to the power of output shaft 19 respectively
Realize that bottom gear is started to walk after coupling.
Shift mode：Vehicle, to upshift, may be accomplished by after starting：First motor 20 increase by one
Fixed torque, while the second motor 21 reduces certain torque, the second synchronizer 16 and the second jackshaft bottom gear driving tooth
The separation of wheel 14, the second synchronizer 16 is combined with the second jackshaft top gear driving gear 15 again when speed reaches certain value,
Gearshift is completed, so as to realize that power does not interrupt gearshift.
Neutral mode：Two synchronizers are not combined with the driving gear on jackshaft, the driving gear on jackshaft and
Each driven gear on output shaft is in idling conditions, and vehicle relies on inertia traveling or stopping.
Reverse mode：The utility model is by controlling the first motor 20 or the second motor 21 to invert realization and fall
Gear.
Fault mode：When a certain motor breaks down, another motor continues normal work, continues to drive vehicle traveling.
Braking mode：During automobile brake, two motors are in generating state, and braking energy is converted and stored
To battery.
As shown in Fig. 2 the change according to the electric automobile drive assembly system of the double speed changes of bi-motor provided by the utility model
Change example, the first synchronizer 8 and the second synchronizer 16 are arranged on output shaft, and the first synchronizer 8 is used to connect output shaft bottom gear
Driven gear 7 or output shaft top gear driven gear 9；Second synchronizer 16 is used to connect output shaft top gear driven gear 17
With output shaft bottom gear driven gear 18, remaining connected mode is constant, and synchronizer, which is arranged on output shaft, causes bi-motor is double to become
The structure of the electric automobile drive assembly system of speed is more compact, and maintenance is more convenient.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims,
This has no effect on substantive content of the present utility model.In the case where not conflicting, the spy in embodiments herein and embodiment
Sign can be arbitrarily mutually combined.
Claims (8)
1. the electric automobile drive assembly system of the double speed changes of a kind of bi-motor, it is characterised in that including the first drive mechanism, first
Gear, the second drive mechanism, the second gear, output mechanism and gearshift, wherein：First drive mechanism
Output mechanism is driven by the first gear；Second drive mechanism drives output mechanism by the second gear；Institute
State the first gear and the second gear connects output mechanism respectively；The gearshift be arranged on output mechanism or
It is arranged on the first gear and the second gear.
2. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 1, it is characterised in that
First drive mechanism includes the first motor, the first input shaft and the first input shaft driving gear, and first drives
Dynamic motor drives the first input shaft driving gear to rotate by the first input shaft；
Second drive mechanism includes the second motor, the second input shaft and the second input shaft driving gear, and second drives
Dynamic motor drives the second input shaft driving gear to rotate by the second input shaft.
3. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 1, it is characterised in that
First gear includes the first jackshaft and the first stud gear group being arranged on the first jackshaft；
Second gear includes the second jackshaft and the second stud gear group being arranged on the second jackshaft.
4. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 3, it is characterised in that
The first stud gear group includes the first counter shaft driven gear, the first jackshaft top gear driving gear and first
Jackshaft bottom gear driving gear；
The second stud gear group includes the second counter shaft driven gear, the second jackshaft top gear driving gear and second
Jackshaft bottom gear driving gear.
5. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 4, it is characterised in that described defeated
Going out mechanism includes output shaft and the output gear group being arranged on the output shaft, and the output gear group includes two outputs
Axle top gear driven gear and output shaft bottom gear driven gear, two output shaft top gears mediate the first jackshaft at a high speed respectively
Keep off driving gear and the second jackshaft top gear driving gear；Two output shaft bottom gear driven gears are mediated among first respectively
Axle bottom gear driving gear and and the second jackshaft bottom gear driving gear.
6. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 4, it is characterised in that described to change
Retaining device is arranged on the first gear and the second gear；Gearshift on first gear is used to combine first
Jackshaft top gear driving gear or the first jackshaft bottom gear driving gear；Gearshift on second gear is used for
With reference to the second jackshaft top gear driving gear or the second jackshaft bottom gear driving gear.
7. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 5, it is characterised in that described to change
Retaining device is arranged on output shaft, and the gearshift is used to combine output shaft top gear driven gear or output shaft bottom gear
Driven gear.
8. the electric automobile drive assembly system of the double speed changes of bi-motor according to claim 1, it is characterised in that described to change
Retaining device includes synchronizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720923756.2U CN207207728U (en) | 2017-07-27 | 2017-07-27 | The electric automobile drive assembly system of the double speed changes of bi-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720923756.2U CN207207728U (en) | 2017-07-27 | 2017-07-27 | The electric automobile drive assembly system of the double speed changes of bi-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207207728U true CN207207728U (en) | 2018-04-10 |
Family
ID=61814339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720923756.2U Active CN207207728U (en) | 2017-07-27 | 2017-07-27 | The electric automobile drive assembly system of the double speed changes of bi-motor |
Country Status (1)
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| CN (1) | CN207207728U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501568A (en) * | 2018-12-28 | 2019-03-22 | 樊朝晖 | A kind of electric car dual-motor drive system and its control method |
| CN110360106A (en) * | 2019-07-25 | 2019-10-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor, air-conditioner outdoor unit and air conditioner |
| WO2020259518A1 (en) * | 2019-06-27 | 2020-12-30 | 郑州宇通客车股份有限公司 | Battery electric vehicle and electric drive power system therefor |
| CN112810423A (en) * | 2019-11-15 | 2021-05-18 | 郑州宇通客车股份有限公司 | Dual-motor power system and electric vehicle |
| CN113682119A (en) * | 2021-09-05 | 2021-11-23 | 凯博易控车辆科技(苏州)股份有限公司 | Dual-motor speed change system |
| CN113696705A (en) * | 2021-10-26 | 2021-11-26 | 凯博易控车辆科技(苏州)股份有限公司 | Multi-motor speed change system |
| CN113738833A (en) * | 2021-09-13 | 2021-12-03 | 凯博易控车辆科技(苏州)股份有限公司 | Gear shifting system with escaping gear |
-
2017
- 2017-07-27 CN CN201720923756.2U patent/CN207207728U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501568A (en) * | 2018-12-28 | 2019-03-22 | 樊朝晖 | A kind of electric car dual-motor drive system and its control method |
| CN109501568B (en) * | 2018-12-28 | 2023-08-11 | 智一新能源发展有限公司 | Dual-motor driving system of electric automobile and control method thereof |
| WO2020259518A1 (en) * | 2019-06-27 | 2020-12-30 | 郑州宇通客车股份有限公司 | Battery electric vehicle and electric drive power system therefor |
| CN110360106A (en) * | 2019-07-25 | 2019-10-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor, air-conditioner outdoor unit and air conditioner |
| CN112810423A (en) * | 2019-11-15 | 2021-05-18 | 郑州宇通客车股份有限公司 | Dual-motor power system and electric vehicle |
| CN113682119A (en) * | 2021-09-05 | 2021-11-23 | 凯博易控车辆科技(苏州)股份有限公司 | Dual-motor speed change system |
| CN113738833A (en) * | 2021-09-13 | 2021-12-03 | 凯博易控车辆科技(苏州)股份有限公司 | Gear shifting system with escaping gear |
| CN113696705A (en) * | 2021-10-26 | 2021-11-26 | 凯博易控车辆科技(苏州)股份有限公司 | Multi-motor speed change system |
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