CN209320656U - Dual-motor drive system and vehicle - Google Patents
Dual-motor drive system and vehicle Download PDFInfo
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- CN209320656U CN209320656U CN201821670907.9U CN201821670907U CN209320656U CN 209320656 U CN209320656 U CN 209320656U CN 201821670907 U CN201821670907 U CN 201821670907U CN 209320656 U CN209320656 U CN 209320656U
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Abstract
The utility model relates to dual-motor drive systems and vehicle, system includes first motor, the second motor, planet row and system output shaft, first motor connection connects the second end of planet row by the second lock-up clutch, the first end of second motor connection planet row, second motor connects the second lock-up clutch, the second end or third end O connection system output shaft of planet row by the first lock-up clutch.Under Dual-motors Driving mode, when the non-locking of the first lock-up clutch locking, the second lock-up clutch, system can export a torque value, when the non-locking of the first lock-up clutch, the second lock-up clutch locking, system can export another torque value, the numerical values recited of the two torque values is different, therefore, under Dual-motors Driving mode, pure electric drive system can export two different torques, output torque, and then the diversity of lifting system operating mode and control flexibility can be adjusted according to actual needs.
Description
Technical field
The utility model relates to dual-motor drive systems and vehicle.
Background technique
The pure electric vehicle drive system that mainstream uses currently on the market is motor direct-drive form, such form structure and
Arrangement is simple, but has the disadvantage in that 1. the matched motor standby torque of vehicle is big, and motor is mostly low in low torque in actual use
Efficiency area, braking and energy regenerating effect are poor, and vehicle economy is bad；2. big motor cost and weight are high, and associated cooling
System matches require height, and competitiveness is weak；It 3. vehicle is directly sat when electrical fault, can not move, be driven without emergency power
System.In order to solve above-mentioned corresponding technological deficiency, the Chinese utility model patent text that Authorization Notice No. is CN207790291U
A kind of pure electric drive system, including first motor, the second motor and planet row, first motor and the second motor are disclosed in part
It is connect with the corresponding end of planet row, also, is provided with lock-up clutch on the output shaft of first motor and the second motor.The drive
Dynamic system can be realized single motor drive mode and Dual-motors Driving mode, and still, system can only be defeated under Dual-motors Driving mode
A kind of dynamic torque out can not adjust the torque of output according to actual needs.
Utility model content
The purpose of the utility model is to provide dual-motor drive systems and vehicle, to solve existing pure electric vehicle driving system
The problem of system can only export a kind of torque under Dual-motors Driving mode, can not adjust output torque according to actual needs.
To achieve the above object, the embodiment of the utility model includes:
A kind of dual-motor drive system, including first motor, the second motor, planet row, the first lock-up clutch, the second lock
Only clutch and system output shaft, having one in the sun gear, planet carrier and gear ring in the planet row is first end, and one is
Second end, one is third end, and the first motor connects one end of second lock-up clutch, the second locking clutch
The other end of device connects the second end, and second motor connects the one of the first end and first lock-up clutch
End, the other end of first lock-up clutch connect one for connecting with first motor of second lock-up clutch
End, the second end or three-polar output connect the system output shaft.
Pure electric drive system is constant in the output torque of first motor and the second motor under Dual-motors Driving mode
Under the premise of, when the non-locking of the first lock-up clutch locking, the second lock-up clutch, system can export a torque value, when
When the non-locking of the first lock-up clutch, the second lock-up clutch locking, system can export another torque value, the two torques
The numerical values recited of value is different, and therefore, under Dual-motors Driving mode, pure electric drive system can export two different torsions
Square can adjust output torque, and then the diversity of lifting system operating mode and control flexibility according to actual needs.And
And by the mutual cooperation of bi-motor, lock-up clutch and planet row, motor miniaturization may be implemented, improve motor driven and
Working efficiency when braking recycling, promotes vehicle economy, and the Brake Energy of the pure electric drive of multi-mode, multi-mode may be implemented
Factory's function that amount recycles and single motor is walked lamely back.The operating point of two motors is adjusted according to the different speed ratios of planet row, is made
The operating point when driving and braking recycling of motor concentrates on high efficient district, lifting system efficiency and economy.
Further, the first end is sun gear, and the second end is planet carrier, and the third end is gear ring, described
Gear ring is locked on shell.
Further, the second end output connects the system output shaft.
A kind of vehicle, including vehicle body and dual-motor drive system, the dual-motor drive system include the first electricity
Machine, the second motor, planet row, the first lock-up clutch, the second lock-up clutch and system output shaft, in the planet row too
Having one in sun wheel, planet carrier and gear ring is first end, and one is second end, and one is third end, the first motor connection
One end of second lock-up clutch, the other end of second lock-up clutch connect the second end, second electricity
Machine connects one end of the first end and first lock-up clutch, described in the other end connection of first lock-up clutch
One end for connecting with first motor of second lock-up clutch, the second end or three-polar output connect the system
Output shaft.
Pure electric drive system is constant in the output torque of first motor and the second motor under Dual-motors Driving mode
Under the premise of, when the non-locking of the first lock-up clutch locking, the second lock-up clutch, system can export a torque value, when
When the non-locking of the first lock-up clutch, the second lock-up clutch locking, system can export another torque value, the two torques
The numerical values recited of value is different, and therefore, under Dual-motors Driving mode, pure electric drive system can export two different torsions
Square can adjust output torque, and then the diversity of lifting system operating mode and control flexibility according to actual needs.And
And by the mutual cooperation of bi-motor, lock-up clutch and planet row, motor miniaturization may be implemented, improve motor driven and
Working efficiency when braking recycling, promotes vehicle economy, and the Brake Energy of the pure electric drive of multi-mode, multi-mode may be implemented
Factory's function that amount recycles and single motor is walked lamely back.The operating point of two motors is adjusted according to the different speed ratios of planet row, is made
The operating point when driving and braking recycling of motor concentrates on high efficient district, lifting system efficiency and economy.
Further, the first end is sun gear, and the second end is planet carrier, and the third end is gear ring, described
Gear ring is locked on shell.
Further, the second end output connects the system output shaft.
Detailed description of the invention
Fig. 1 is pure electric drive system structure chart provided by the utility model；
Wherein, 1 is first motor, and 2 be the second motor, 3A is sun gear, and 3B is planet carrier, and 3C is gear ring, and 4 be the first lock
Only clutch, 5 be the second lock-up clutch, and 6 be system output shaft.
Specific embodiment
Vehicle embodiments
The present embodiment provides a kind of vehicle, including vehicle body and pure electric drive system, vehicle body belongs to conventional skill
Art, the present embodiment just no longer illustrate, and pure electric drive system is described in detail in following emphasis.
Dual-motor drive system includes first motor 1, the second motor 2, planet row, the first lock-up clutch 4, the second locking
Clutch 5 and system output shaft 6.Wherein, planet row includes three ends, claims first end, second end and third end respectively, due to row
Three ends of star row are sun gear 3A, planet carrier 3B and gear ring 3C respectively, therefore, first end, second end and third end respectively with
One of them in sun gear 3A, planet carrier 3B and gear ring 3C is corresponding.
As shown in Figure 1, first motor 1 connects one end of the second lock-up clutch 5, the other end of the second lock-up clutch 5
The second end of planet row is connected, the second motor 2 connects the first end of planet row and one end of the first lock-up clutch 4, the first lock
Only the other end of clutch 4 connects one end for connecting with first motor 1 of the second lock-up clutch 5, that is to say, that second
One end for connecting with first motor 1 of lock-up clutch 5 connects the first end of planet row by the first lock-up clutch 4.
The corresponding relationship of first end, second end and the third end of planet row and sun gear 3A, planet carrier 3B and gear ring 3C are simultaneously
Not unique, a total of six kinds of corresponding relationships, different corresponding relationships represent machine driving no-load voltage ratio difference in principle, therefore, are expiring
It under the premise of sufficient service requirement, can be set according to actual needs specific corresponding to relationship, in the present embodiment, provide one kind
Specific corresponding to relationship: first end is sun gear 3A, and second end is planet carrier 3B, and third end is gear ring 3C.So, such as Fig. 1 institute
Show, the other end of the second lock-up clutch 5 connects planet carrier 3B, and the second motor 2 connects sun gear 3A.
Moreover, the second end or third end O connection system output shaft 6 of planet row, that is to say, that the of planet row
Two ends can be with O connection system output shaft 6, and the third end of planet row can also be with O connection system output shaft 6, and difference exists
Different in output transmission ratio, for the present embodiment by taking the second end O connection system output shaft 6 of planet row as an example, i.e. planet carrier 3B is defeated
System output shaft 6 is connected out.So, gear ring 3C is locked on shell, the shell refer to planet row shell, drive system shell or
Vehicle shell.
Each operating mode of dual-motor drive system is as described below:
Single motor drive mode 1: first motor 1 works, and the second motor 2 does not work, and the first lock-up clutch 4 is non-locked,
Second lock-up clutch 5 is locked, and the input of system at this time is first motor 1, exports as system output shaft 6, specific torque pass
System are as follows: Tout=TMG1, TMG1For the torque of first motor 1, ToutFor the output torque of system output shaft 6.
The work of 2: the second motor 2 of single motor drive mode, first motor 1 do not work, and the first lock-up clutch 4 is non-locked,
Second lock-up clutch 5 is non-locked, and the input of system at this time is the second motor 2, is exported as system output shaft 6, specific torque
Relationship are as follows: Tout=(k+1) TMG2, wherein k is the ratio of gear ring 3C radius and sun gear 3A radius, TMG2For turning for the second motor 2
Square.
Dual-motors Driving mode 3: first motor 1 works, the work of the second motor 2, and the first lock-up clutch 4 is non-locked, the
Two lock-up clutches 5 are locked, and the input of system at this time is first motor 1 and the second motor 2, export as system output shaft 6, specifically
Torque relationship are as follows: Tout=(k+1) TMG2+TMG1。
Dual-motors Driving mode 4: first motor 1 works, and the work of the second motor 2, the first lock-up clutch 4 is locked, and second
Lock-up clutch 5 is non-locked, and the input of system at this time is first motor 1 and the second motor 2, exports as system output shaft 6, specifically
Torque relationship are as follows: Tout=(k+1) * (TMG2+TMG1)。
Above four kinds of drive modes can be matched according to vehicle motor and the different flexible choices of planet row speed ratio type selecting
Or combination.
Single motor brakes take-back model 1: first motor 1 works, and the second motor 2 does not work, the non-lock of the first lock-up clutch 4
Extremely, the second lock-up clutch 5 is locked, and the input of system at this time is system output shaft 6, exports as first motor 1, specific torque
Relationship are as follows: T=TMG1K, TMG1KFor the power generation torque of first motor 1, T is the input torque of system output shaft 6.
Single motor brakes the work of 2: the second motor 2 of take-back model, and first motor 1 does not work, the non-lock of the first lock-up clutch 4
Extremely, the second lock-up clutch 5 is non-locked, and the input of system at this time is system output shaft 6, exports as the second motor 2, specific to turn
Square relationship are as follows: T=(k+1) * TMG2K, TMG2KFor the power generation torque of the second motor 2.
Bi-motor brakes take-back model 3: first motor 1 works, the work of the second motor 2, the non-lock of the first lock-up clutch 4
Extremely, the second lock-up clutch 5 is locked, and the input of system at this time is system output shaft 6, exports as first motor 1 and the second motor
2, specific torque relationship are as follows: T=(k+1) * TMG2K+TMG1K。
Bi-motor brakes take-back model 4: first motor 1 works, and the work of the second motor 2, the first lock-up clutch 4 is locked,
Second lock-up clutch 5 is non-locked, and the input of system at this time is system output shaft 6, exports as first motor 1 and the second motor 2,
Specific torque relationship are as follows: T=(k+1) * (TMG2K+TMG1K)。
Above four kinds of brakings take-back model can match the Bu Tong flexibly choosing with planet row speed ratio type selecting according to vehicle motor
It selects or combines.
Table 1 provides the working condition of each components under above-mentioned several operating modes.
Table 1
Therefore, realize that system can under Dual-motors Driving mode by the first lock-up clutch and the second lock-up clutch
Export two different torques, the diversity and control flexibility of lifting system operating mode.Moreover, by bi-motor, locking from
Motor miniaturization may be implemented in the mutual cooperation of clutch and planet row, improves working efficiency when motor driven and braking recycling,
Vehicle economy is promoted, and the pure electric drive of multi-mode, the Brake energy recovery of multi-mode and single motor may be implemented and walk lamely
Return factory's function.The operating point of two motors is adjusted according to the different speed ratios of planet row, makes the driving and braking recycling of motor
When operating point concentrate on high efficient district, lifting system efficiency and economy.Moreover, the miniaturization by motor can be realized motor
Loss of weight reduces cost.Furthermore it is also possible to realize respectively driving for two single motors, the environmental suitability of lifting system.
Specific embodiment is presented above, but the utility model is not limited to described embodiment.This is practical
Novel basic ideas are above-mentioned basic scheme, for those of ordinary skill in the art, introduction according to the present utility model,
The model, formula, parameter for designing various modifications do not need to spend creative work.The principles of the present invention are not being departed from
The protection scope of the utility model is still fallen with the change, modification, replacement and modification carried out in the case where spirit to embodiment
It is interior.
Dual-motor drive system embodiment
The present embodiment provides a kind of dual-motor drive systems, since the dual-motor drive system is in above-mentioned vehicle embodiments
It has been carried out and describes in detail, just no longer illustrate here.
Claims (6)
1. a kind of dual-motor drive system, including first motor, the second motor, planet row, the first lock-up clutch, the second locking
Clutch and system output shaft, having one in the sun gear, planet carrier and gear ring in the planet row is first end, and one is
Two ends, one is third end, which is characterized in that the first motor connects one end of second lock-up clutch, and described
The other ends of two lock-up clutches connects the second end, second motor connect the first end and first locking from
One end of clutch, the other end of first lock-up clutch connect being used for and first motor company for second lock-up clutch
The one end connect, the second end or three-polar output connect the system output shaft.
2. dual-motor drive system according to claim 1, which is characterized in that the first end is sun gear, described the
Two ends are planet carrier, and the third end is gear ring, and the gear ring is locked on shell.
3. dual-motor drive system according to claim 1 or 2, which is characterized in that described in the second end output connection
System output shaft.
4. a kind of vehicle, including vehicle body and dual-motor drive system, the dual-motor drive system include first motor,
Second motor, planet row, the first lock-up clutch, the second lock-up clutch and system output shaft, the sun in the planet row
Having one in wheel, planet carrier and gear ring is first end, and one is second end, and one is third end, which is characterized in that described first
Motor connects one end of second lock-up clutch, and the other end of second lock-up clutch connects the second end, institute
State one end that the second motor connects the first end and first lock-up clutch, the other end of first lock-up clutch
Connect one end for connecting with first motor of second lock-up clutch, the second end or three-polar output connection
The system output shaft.
5. vehicle according to claim 4, which is characterized in that the first end is sun gear, and the second end is planet
Frame, the third end are gear ring, and the gear ring is locked on shell.
6. vehicle according to claim 4 or 5, which is characterized in that the second end output connects the system output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670907.9U CN209320656U (en) | 2018-10-15 | 2018-10-15 | Dual-motor drive system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670907.9U CN209320656U (en) | 2018-10-15 | 2018-10-15 | Dual-motor drive system and vehicle |
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| Publication Number | Publication Date |
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| CN209320656U true CN209320656U (en) | 2019-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821670907.9U Active CN209320656U (en) | 2018-10-15 | 2018-10-15 | Dual-motor drive system and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038239A (en) * | 2018-10-15 | 2020-04-21 | 郑州宇通客车股份有限公司 | Dual-motor driving system and vehicle |
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2018
- 2018-10-15 CN CN201821670907.9U patent/CN209320656U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038239A (en) * | 2018-10-15 | 2020-04-21 | 郑州宇通客车股份有限公司 | Dual-motor driving system and vehicle |
| CN111038239B (en) * | 2018-10-15 | 2024-04-05 | 宇通客车股份有限公司 | Dual-motor driving system and vehicle |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |