CN109519506A - Electric car and its drive system - Google Patents
Electric car and its drive system Download PDFInfo
- Publication number
- CN109519506A CN109519506A CN201710857242.6A CN201710857242A CN109519506A CN 109519506 A CN109519506 A CN 109519506A CN 201710857242 A CN201710857242 A CN 201710857242A CN 109519506 A CN109519506 A CN 109519506A
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- Prior art keywords
- transmission mechanism
- driving gear
- double reduction
- semiaxis
- gear
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/085—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with more than one output shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a kind of electric car and its drive system, which includes: first motor and the second motor, and the two is connected by clutch；The first semiaxis and the second semiaxis connected by differential mechanism；With the primary speed-down part of the primary speed-down part of the first transmission mechanism of first motor transmission connection, the second transmission mechanism being connect with the second motor drive；The double reduction part for the second transmission mechanism being sequentially connected with the double reduction part of the first transmission mechanism of the first semiaxis transmission connection, with the second semiaxis, the third transmission mechanism that is connect with differential drive；The primary speed-down part of first transmission mechanism is selectively sequentially connected with its second level deceleration part and third transmission mechanism by the first synchronizer, and the primary speed-down part of the second transmission mechanism is selectively sequentially connected with its second level deceleration part and third transmission mechanism by the second synchronizer.Above-mentioned electric car and its drive system have multiple-working mode, can preferably be suitable for complex road condition.
Description
Technical field
The present invention relates to electric car technical fields, more specifically to a kind of electric car and its drive system.
Background technique
The pure power drive system structure of current bi-motor, as shown in FIG. 1, FIG. 1 is dual-motor drive systems in the prior art
Schematic diagram, two motors 1 are connected with a double reduction mechanism 2 respectively, and semiaxis 3, i.e. output shaft are mutually indepedent, and two electricity
Clutch 4, the series and parallel mode for switch motor are equipped between machine 1
For paralleling model, it can be achieved that independence driving of the motor 1 to two sides semiaxis 3, reaches active differential when clutch 4 separates
The function that difference is turned round；For series model, it can be achieved that the large torque output of unilateral side but not differential when clutch 4 combines.It can be seen that the program
Since its structure is relatively simple, and only one gear, speed ratio is single, therefore alternative operating mode is less, cannot be preferable
Ground adapts to complex road condition.
Therefore, it is few how to solve dual-motor drive system operating mode in the prior art, complicated road cannot be well adapted to
The technical issues of condition, becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of electric car and its drive system, which can be realized a variety of works
Operation mode, and then can preferably be suitable for complex road condition.
A kind of drive system of electric car provided by the invention, comprising:
The output shaft of first motor and the second motor, the first motor and second motor is separable by clutch
Ground is connected；
The first semiaxis and the second semiaxis being connected by differential mechanism；
The primary speed-down part and described second for the first transmission mechanism being sequentially connected with the output shaft of the first motor
The primary speed-down part of second transmission mechanism of the output shaft transmission connection of motor；
It is driven with the double reduction part of the first transmission mechanism of first semiaxis transmission connection, with second semiaxis
The double reduction part of second transmission mechanism of connection and the third transmission mechanism being connect with the differential drive；
First transmission mechanism passes through the first synchronizer selectively double reduction portion with first transmission mechanism
Point and third transmission mechanism transmission connection, second transmission mechanism is by the second synchronizer selectively with described second
The double reduction part of transmission mechanism and third transmission mechanism transmission connection.
Preferably, first transmission mechanism, second transmission mechanism are two-stage transmission, and the third transmission mechanism is
Primary transmission.
It preferably, further include the driving gear of the third transmission mechanism of jackshaft and empty set on the jackshaft, the master
The driven wheel of moving gear and the third transmission mechanism is sequentially connected；
The primary speed-down part of first transmission mechanism includes the level-one being fixed on the output shaft of the first motor
The primary speed-down driven tooth that deceleration driving gear, empty set are meshed on the jackshaft and with the primary speed-down driving gear
Wheel, the double reduction part of first transmission mechanism include empty set on the jackshaft and with the primary speed-down driving tooth
Wheel passes through the double reduction driving gear that the first synchronizer connects, the double reduction driven tooth being fixed on first semiaxis
Wheel；
First synchronizer includes combined cover, tooth hub and left and right two basic change tooth, and its tooth hub empty set is on jackshaft
And be connected with the primary speed-down driven gear of first transmission mechanism, its left and right two basic change tooth respectively with it is described first pass
The double reduction driving gear of motivation structure is connected with the driving gear of third transmission mechanism.
Preferably, the primary speed-down part of second transmission mechanism includes being fixed on the output shaft of second motor
Primary speed-down driving gear, the primary speed-down that is fixed on the jackshaft and is meshed with the primary speed-down driving gear
Driven gear, the double reduction part of second transmission mechanism include that empty set is driven on the jackshaft and with described second
The primary speed-down driving gear of mechanism passes through the double reduction driving gear of the second synchronizer connection, is fixed on second semiaxis
On double reduction driven gear；
Second synchronizer includes combined cover, tooth hub and left and right two basic change toothed portion, and its tooth hub is fixed on centre
It is connected on axis and with the primary speed-down driven gear of second transmission mechanism, its left and right two basic change tooth is respectively with described
The double reduction driving gear of two transmission mechanisms is connected with the driving gear of third transmission mechanism.
Preferably, the double reduction driven gear of first transmission mechanism for setting on first semiaxis and with institute
State the first axle shaft gear that the double reduction driving gear of the first transmission mechanism is meshed
Preferably, the double reduction driven gear of second transmission mechanism for setting on second semiaxis and with institute
State the second axle shaft gear that the double reduction driving gear of the second transmission mechanism is meshed.
Preferably, the driven gear of the third transmission mechanism is to be arranged on the differential mechanism and be driven with the third
The differential gear that the driving gear of mechanism is meshed.
The present invention also provides a kind of electric car, including drive system, the drive system is described in any one as above
Drive system.
In technical solution provided by the invention, under bi-motor series and parallel mode, pass through the control of clutch and synchronizer
System, realizes a variety of driving methods, in same system to meet intelligent driving demand.When the clutch is disengaged, it both may be implemented
Motor drives the independence of two sides semiaxis, and principal moment speed difference is turned round, and unilateral motor may be implemented and pass through differential mechanism while driving two
Side semiaxis, the not poor torsion of passive differential can also realize that two sides motor is driven jointly by differential mechanism when two motor speeds are consistent
Two sides semiaxis；When clutch combines, can not only realize two motors while drive two sides semiaxis, but may be implemented it is unilateral drive and
Difference turns round not differential.Therefore, the drive system of electric car provided by the invention has multiple-working mode, can preferably fit
Answer various road conditions.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is dual-motor drive system schematic diagram in the prior art；
Fig. 2 is the drive system schematic diagram of electric car in the embodiment of the present invention；
Fig. 3-Fig. 9 is that each drive mode power of drive system in the embodiment of the present invention transmits conspectus；
In figure:
First motor -11, the second motor -12, clutch -13, differential mechanism -14, the first semiaxis -15, the second half
Axis -16, the first synchronizer -17, the second synchronizer -18, jackshaft -19, third transmission mechanism driving gear -20, first
Transmission mechanism primary speed-down driving gear -21, the first transmission mechanism primary speed-down driven gear -22, the first transmission mechanism two
Grade deceleration driving gear -23, the second transmission mechanism primary speed-down driving gear -24, the second transmission mechanism primary speed-down are driven
Gear -25, the second transmission mechanism double reduction driving gear -26, the first transmission mechanism double reduction driven gear -27,
Two transmission mechanism double reduction driven gear -28, third transmission mechanism driving gear -29.
Specific embodiment
The purpose of the present invention is to provide a kind of electric car and its drive system, which can be realized a variety of works
Operation mode, and then can preferably be suitable for complex road condition.
Hereinafter, being illustrated referring to attached drawing to embodiment.In addition, embodiments illustrated below is not to recorded in claim
Summary of the invention rise any restriction effect.In addition, the full content of composition represented by following example is not limited to as right
Necessary to the solution invented documented by it is required that.
Referring to FIG. 2, the drive system of electric car provided in this embodiment, including first motor 11 and the second motor
12, and first motor 11 is separably connected with the output shaft of the second motor 12 by clutch 13.The of electric car
One semiaxis 15 is connected with the second semiaxis 16 by differential mechanism 14, and the first semiaxis 15 and the second semiaxis 16 are used for band motor car wheel and turn
It is dynamic.
Drive system provided in this embodiment further include: the first driver being sequentially connected with the output shaft of first motor 11
The primary speed-down part of structure, the second transmission mechanism being sequentially connected with the output shaft of the second motor 12 primary speed-down part, with
The double reduction part of first transmission mechanism of the first semiaxis 15 transmission connection, the second transmission with the transmission connection of the second semiaxis 16
The double reduction part of mechanism and the third transmission mechanism being sequentially connected with differential mechanism 14.
It is emphasized that the first transmission mechanism is selectively passed with first by the first synchronizer 17 in the present embodiment
The double reduction part of motivation structure and the transmission connection of third transmission mechanism, the second transmission mechanism may be selected by the second synchronizer 18
The double reduction part and third transmission mechanism of ground and the second transmission mechanism are sequentially connected.
In the present embodiment, above-mentioned first transmission mechanism, the second transmission mechanism are two-stage transmission, and the passive transmission mechanism of third is
Primary transmission.Certainly, the transmission mechanisms such as second level, three-level be may be alternatively provided as in other embodiments, can be specifically arranged as described below:
Drive system provided in this embodiment further includes the third transmission mechanism of jackshaft 19 and empty set on jackshaft 19
Driving gear 20, third transmission mechanism driving gear 20 and third transmission mechanism driven gear are sequentially connected.
Moreover, the first transmission mechanism includes: that the first transmission mechanism level-one being fixed on the output shaft of first motor 11 subtracts
The first biography that fast driving gear 21, empty set are meshed on jackshaft 19 and with the first transmission mechanism primary speed-down driving gear 21
What motivation structure primary speed-down driven gear 22, empty set were connect on jackshaft 19 and with the first transmission mechanism by the first synchronizer
First transmission mechanism double reduction driving gear 23.
First synchronizer 17 includes tooth hub and combined cover S1, conjunction gear A and conjunction gear B, and its tooth hub and combined cover S1 with
First transmission mechanism primary speed-down driven gear 22 is connected, conjunction gear A and conjunction gear B subtract with the first transmission mechanism second level respectively
Fast driving gear 23 is connected with third transmission mechanism driving gear 20.
Equally, the second transmission mechanism may include: the second transmission mechanism one being fixed on the output shaft of the second motor 12
Grade deceleration driving gear 24, be fixed on jackshaft 19 and be meshed with the second transmission mechanism primary speed-down driving gear 24 the
Two transmission mechanism primary speed-down driven gears 25, empty set connect on jackshaft 19 and with the second transmission mechanism by the second synchronizer
The the second transmission mechanism double reduction driving gear 26 connect.
Second synchronizer 18 includes tooth hub and combined cover S2, conjunction gear C and conjunction gear D, and its tooth hub and combined cover S2 with
Second transmission mechanism primary speed-down driven gear 25 is connected, conjunction gear C and conjunction gear D subtract with the second transmission mechanism second level respectively
Fast driving gear 26 is connected with third transmission mechanism driving gear 20.
The double reduction driven wheel of first transmission mechanism be arranged on the first semiaxis 15 and with the first transmission mechanism second level
The first transmission mechanism double reduction driven gear 27 that deceleration driving gear 23 is meshed.The double reduction of second transmission mechanism from
Driving wheel is the second driver for being arranged on the second semiaxis 16 and being meshed with the second transmission mechanism double reduction driving gear 26
Structure double reduction driven gear 28.Third transmission mechanism be arranged on differential mechanism 14 and with third transmission mechanism driving gear 20
The third transmission mechanism driving gear 29 being meshed.
So constitute the complete transmission mechanism of drive system provided in this embodiment.The drive system can be completed more
Kind drive mode, is with reference to the accompanying drawing illustrated the control method of drive mode and power transmission route, dotted line in each figure
Arrow show power direction of transfer.
1, when clutch 13 separates, it can be achieved that following technical effect:
(1) as Fig. 3, the combined cover S1 of the first synchronizer 17 access conjunction gear A, the combined cover S2 access of the second synchronizer 18
, it can be achieved that two motors respectively drive two sides semiaxis when conjunction gear C, motor is in paralleling model, and two sides semiaxis is mutually only at this time
It is vertical, not only can at the same speed with turning round, but also can differential difference turn round, the revolving speed and torque condition of two sides semiaxis can completely by motor connected to it into
Row active control can realize vehicle in the case where steering wheel is without corner input with smaller by the revolving speed of motor control two sides semiaxis at this time
Turning radius turn；
The combined cover S1 of (2) first synchronizers 17 accesses conjunction gear B, and the combined cover S2 of the second synchronizer 18 is in neutral gear,
As shown in fig. 4 a；Or first the combined cover S1 of synchronizer 17 be in neutral gear, the combined cover S2 of the second synchronizer 18 accesses conjunction gear D
When it is as shown in Figure 4 b；The driving, it can be achieved that unilateral motor is so operated, only one motor works at this time, passes through differential mechanism 14
Drive two sides semiaxis simultaneously, the not poor torsion of differential, system is economic model under the state, is suitble to general road conditions.
(3) as Fig. 5, the combined cover S1 of the first synchronizer 17 access conjunction gear B, the combined cover S2 access of the second synchronizer 18
When conjunction gear D, two motor speeds need to be consistent, and two sides motor passes through the driving two sides semiaxis of differential mechanism 14 simultaneously at this time, real
The existing not poor torsion of differential, the program can guarantee that vehicle has biggish torque while turning, a kind of suitable for ramp turning
Road conditions.
The combined cover S1 of (4) first synchronizers 17 accesses conjunction gear A, and the combined cover S2 of the second synchronizer 18 is in neutral gear,
As shown in Figure 6 a；Or first the combined cover S1 of synchronizer 17 be in neutral gear, the combined cover S2 of the second synchronizer 18 accesses conjunction gear C
When, as shown in Figure 6 b；So operation is not, it can be achieved that unilateral motor driven side semiaxis, other side semiaxis exports, suitable for vehicle
It gets rid of poverty.
2, when clutch 13 combines, it can be achieved that following technical effect:
(1) as shown in fig. 7, the combined cover S1 of the first synchronizer 17 accesses conjunction gear A, the combined cover S2 of the second synchronizer 18
Conjunction gear C is accessed, two motors respectively drive two sides semiaxis at this time, but since clutch 13 combines, two motor speeds are consistent, can be real
The existing synchronized different functions of turning round of two sides semiaxis, the inconsistent road conditions of the two sides torque demand encountered advance suitable for vehicle；
The combined cover S1 of (2) first synchronizers 17 accesses conjunction gear B, and the combined cover S2 of the second synchronizer 18 accesses conjunction gear
D, as shown in Figure 8 a；Or in which a synchronizer is when being in neutral gear, as shown in Figure 8 b；It is at this time motor is series model, two electricity
The power of machine is transmitted on the semiaxis of two sides together via differential mechanism 14, can passive differential but not poor torsion, being suitable for two sides torque needs
Seek larger and consistent road conditions；
The combined cover S1 of (3) first synchronizers 17 accesses conjunction gear A, and the combined cover S2 of the second synchronizer 18 is in neutral gear,
As illustrated in fig. 9；Or first the combined cover S1 of synchronizer 17 be in neutral gear, when the initiative part S2 of the second synchronizer 18 accesses C grades,
As shown in figure 9b；It is exported at this time from side for two motor powers, other side semiaxis unpowered output, this scheme is suitable for vehicle
It gets rid of poverty, since two motors export simultaneously, technical effect when separating compared to clutch 13 has bigger output torque.
By said effect it is found that when clutch 13 separates, it can be achieved that the parallel operation mode or single motor of motor export
Mode, when clutch 13 combines, it can be achieved that the tandem working mode of motor, obtains biggish torque output.And system has
Two gears are exported when power is transferred to semiaxis from the second level output gear for the double reduction gearing mechanism being connected to the motor,
It is at this time gear one, is exported after power passes to differential mechanism 14 from the level-one output gear of double reduction gearing mechanism, at this time
For gear two.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of drive system of electric car characterized by comprising
The output shaft of first motor and the second motor, the first motor and second motor passes through clutch separably phase
Connection；
The first semiaxis and the second semiaxis being connected by differential mechanism；
The primary speed-down part for the first transmission mechanism being sequentially connected with the output shaft of the first motor and second motor
Output shaft transmission connection the second transmission mechanism primary speed-down part；
It is sequentially connected with the double reduction part of the first transmission mechanism of first semiaxis transmission connection, with second semiaxis
The second transmission mechanism double reduction part and the third transmission mechanism that is connect with the differential drive；
First transmission mechanism by the first synchronizer selectively with the double reduction part of first transmission mechanism and
The third transmission mechanism transmission connection, second transmission mechanism are selectively driven with described second by the second synchronizer
The double reduction part of mechanism and third transmission mechanism transmission connection.
2. drive system as described in claim 1, which is characterized in that first transmission mechanism, second transmission mechanism
For two-stage transmission, the third transmission mechanism is primary transmission.
3. drive system as claimed in claim 2, which is characterized in that further include jackshaft and empty set on the jackshaft
The driven wheel of the driving gear of third transmission mechanism, the driving gear and the third transmission mechanism is sequentially connected；
The primary speed-down part of first transmission mechanism includes the primary speed-down being fixed on the output shaft of the first motor
The primary speed-down driven gear that driving gear, empty set are meshed on the jackshaft and with the primary speed-down driving gear,
The double reduction part of first transmission mechanism include empty set on the jackshaft and with the primary speed-down driven gear
The double reduction driving gear connected by the first synchronizer, the double reduction driven gear being fixed on first semiaxis；
First synchronizer includes combined cover, tooth hub and left and right two basic change tooth, and its tooth hub empty set on jackshaft and with
The primary speed-down driven gear of first transmission mechanism is connected, its left and right two basic change tooth respectively with first driver
The double reduction driving gear of structure is connected with the driving gear of third transmission mechanism.
4. drive system as claimed in claim 3, which is characterized in that the primary speed-down part of second transmission mechanism includes
The primary speed-down driving gear that is fixed on the output shaft of second motor, be fixed on the jackshaft and with the level-one
The primary speed-down driven gear that deceleration driving gear is meshed, the double reduction part of second transmission mechanism include that empty set exists
Subtracted on the jackshaft and with the primary speed-down driving gear of second transmission mechanism by the second level that the second synchronizer is connect
Fast driving gear, the double reduction driven gear being fixed on second semiaxis；
Second synchronizer includes combined cover, tooth hub and left and right two basic change toothed portion, and its tooth hub is fixed on jackshaft
And be connected with the primary speed-down driven gear of second transmission mechanism, its left and right two basic change tooth respectively with it is described second pass
The double reduction driving gear of motivation structure is connected with the driving gear of third transmission mechanism.
5. drive system as claimed in claim 4, which is characterized in that the double reduction driven gear of first transmission mechanism
For the first semiaxis for being arranged on first semiaxis and being meshed with the double reduction driving gear of first transmission mechanism
Gear.
6. drive system as claimed in claim 5, which is characterized in that the double reduction driven gear of second transmission mechanism
For the second semiaxis for being arranged on second semiaxis and being meshed with the double reduction driving gear of second transmission mechanism
Gear.
7. drive system as claimed in claim 6, which is characterized in that the driven gear of the third transmission mechanism is that setting exists
The differential gear being meshed on the differential mechanism and with the driving gear of the third transmission mechanism.
8. a kind of electric car, including drive system, which is characterized in that the drive system is such as any one of claim 1-7
The drive system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710857242.6A CN109519506B (en) | 2017-09-20 | 2017-09-20 | Electric automobile and driving system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710857242.6A CN109519506B (en) | 2017-09-20 | 2017-09-20 | Electric automobile and driving system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109519506A true CN109519506A (en) | 2019-03-26 |
| CN109519506B CN109519506B (en) | 2021-09-21 |
Family
ID=65767836
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710857242.6A Active CN109519506B (en) | 2017-09-20 | 2017-09-20 | Electric automobile and driving system thereof |
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| CN (1) | CN109519506B (en) |
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| CN112046302A (en) * | 2020-09-22 | 2020-12-08 | 吉林大学 | Safe and redundant double-motor wheel-side driving system of electric automobile and control method thereof |
| CN112677903A (en) * | 2020-12-31 | 2021-04-20 | 大运汽车股份有限公司 | Intelligent driving wire-controlled chassis control system and control method for new energy commercial vehicle |
| CN112780730A (en) * | 2019-11-07 | 2021-05-11 | 广州汽车集团股份有限公司 | Nine-speed double-clutch type automatic transmission structure and vehicle |
| CN113007291A (en) * | 2021-03-01 | 2021-06-22 | 凯博易控车辆科技(苏州)股份有限公司 | Electrically-driven heavy truck multi-gear transmission system and control method thereof |
| CN116357714A (en) * | 2023-05-30 | 2023-06-30 | 深圳市先发智能有限公司 | Novel differential and control method thereof |
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| CN109519506B (en) | 2021-09-21 |
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