CN109695668A - Pure electric automobile two gear gearboxes and pure electric automobile - Google Patents

Pure electric automobile two gear gearboxes and pure electric automobile Download PDF

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Publication number
CN109695668A
CN109695668A CN201711002063.0A CN201711002063A CN109695668A CN 109695668 A CN109695668 A CN 109695668A CN 201711002063 A CN201711002063 A CN 201711002063A CN 109695668 A CN109695668 A CN 109695668A
Authority
CN
China
Prior art keywords
gear
input
pure electric
electric automobile
gearboxes
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
Application number
CN201711002063.0A
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Chinese (zh)
Inventor
葛海龙
朱雷
刘新宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC Motor Corp Ltd
Original Assignee
SAIC Motor Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAIC Motor Corp Ltd filed Critical SAIC Motor Corp Ltd
Priority to CN201711002063.0A priority Critical patent/CN109695668A/en
Publication of CN109695668A publication Critical patent/CN109695668A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed 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
    • F16H3/12Toothed 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 means for synchronisation not incorporated in the clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H48/00Differential gearings
    • F16H48/38Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly

Abstract

The invention discloses a kind of pure electric automobile two gear gearboxes and pure electric automobile, the two gears gearbox includes input shaft, a gear input gear and second gear input gear, is equipped with synchronizer between a gear input gear and second gear input gear;There are three operating positions for the synchronizer tool: in the first operating position, its tooth set and the gear input gear engaged transmission, in the second operating position, its tooth set with it is described one gear input gear and the second gear input gear not engaged transmission, in third operating position, tooth set and the second gear input gear engaged transmission;The input shaft is equipped with one-way clutch, and the inner ring of the one-way clutch is fixedly connected with input shaft, and the outer ring of the one-way clutch is fixedly connected with a gear input gear.This two gear gearbox it is required when being shifted gears shift time it is shorter, motor control is also more simple, and in shift process driver and passenger will not dynamic interruption impression, be remarkably improved driving and riding quality.

Description

Pure electric automobile two gear gearboxes and pure electric automobile
Technical field
The present invention relates to electric vehicle engineering fields, are particularly suitable for two gear gearboxes of pure electric automobile.The present invention Further relate to the pure electric automobile for being equipped with the two gears gearbox.
Background technique
Compared with traditional combustion engine automobile, although pure electric automobile can be not provided with gearbox, equipped with gearbox Pure electric automobile have can reduce noise of motor, be able to carry out torque damping, by shift keep motor more efficient Region, vehicle dynamic property it is stronger the advantages that, furthermore, it is possible to efficiently reduce motor index and battery index.
Currently, two gear gearboxes are as shown in Figure 1, this two keep off gearbox in use used by pure electric automobile In the presence of more apparent power interruption phenomenon, shift time is longer, influences to drive quality.
For example, needing 1 torque of motor to drop to 0, then the tooth set of synchronizer 3 is from a left side during being raised to 2 gear from 1 gear Position abjection is to middle position neutral gear, and then motor 1 is adjusted the speed, and the tooth set of synchronizer 3 is moved to right position, and motor 1 loads torque, shift Process is completed.
As can be seen that whole process shift time is long, motor control is more complicated, drives inferior quality, can perceive bright Aobvious power interruption.
Summary of the invention
The object of the present invention is to provide a kind of two gear gearboxes of pure electric automobile.The two gears gearbox is when being shifted gears Required shift time is shorter, and motor control is also more simple, and driver and passenger dynamic will not interrupt in shift process Impression, be remarkably improved driving and riding quality.
It is a further object of the present invention to provide a kind of pure electric automobiles equipped with the two gears gearbox.
To achieve the above object, the present invention provides a kind of pure electric automobile two gear gearboxes, including for connecting motor Input shaft and be rotatably arranged in a gear input gear and second gear input gear of the input shaft, the gear input gear The synchronizer for being installed on the input shaft is equipped between second gear input gear;There are three operating positions for the synchronizer tool: First operating position, the first gear engaged transmission of tooth set and the gear input gear, in the second operating position, tooth set With it is described one gear input gear first gear and the second gear input gear first gear not engaged transmission, in third work Make position, the first gear engaged transmission of tooth set and the second gear input gear;The input shaft is equipped with one-way clutch, institute The inner ring for stating one-way clutch is fixedly connected with the input shaft, the outer ring of the one-way clutch and the gear input gear It is fixedly connected.
It preferably, further comprise the jackshaft for being parallel to the input shaft;The jackshaft is equipped with a gear output gear With second gear output gear, the second gear of the gear input gear is meshed with the gear output gear, and the second gear is defeated The second gear for entering gear is meshed with the second gear output gear.
Preferably, the jackshaft is equipped with the main deceleration input gear with main deceleration output gear engaged transmission.
It preferably, further comprise differential mechanism for connecting wheel, the main deceleration output gear is set to the differential Device.
Preferably, the main deceleration input gear is located between a gear output gear and second gear output gear.
Preferably, the one-way clutch and synchronizer are located at the two sides of the gear input gear.
Preferably, the inner ring and the synchronizer of the one-way clutch are fixedly connected on the input shaft by spline Tooth hub.
Preferably, a gear input gear and second gear input gear are installed on the input shaft in a manner of empty set.
To realize above-mentioned another object, the present invention provides a kind of pure electric automobile, including motor, is connected with the motor Gearbox and the wheel that is connect with the gearbox transmission, the gearbox be pure electric automobile described in any of the above embodiments With two gear gearboxes.
Preferably, the motor is connect with the pure electric automobile with the input shaft of two gear gearboxes by spline.
The present invention is further improved on the basis of tradition two keeps off gearbox, has additional one on a gear input gear The inner ring of a one-way clutch, this one-way clutch is fixedly connected with input shaft, and outer ring is connect with a gear input gear.In this way, When being shifted gears, after synchronizer switches to the second operating position (position in i.e.) from the first operating position (i.e. left position), tooth Although covering with the first gear of a gear input gear and the first gear of second gear input gear without engaged transmission, in sky Gear state, still, input shaft still can transmit power to a gear input gear by the one-way clutch added, and then pass through One gear output gear and subsequent reduction gearing to wheel persistently drive wheel, make driver and passenger will not dynamic interruption sense By, after synchronizer switches to third operating position (i.e. right position), the first gear of the tooth set and second gear input gear of synchronizer Engaged transmission, into second gear state, at this point, according to the transmission ratio of setting it is found that a gear input gear and one-way clutch outer ring Revolving speed be equal to or more than one-way clutch inner ring revolving speed, therefore input shaft will not by one-way clutch to one gear input tooth Wheel transmitting power, does not influence gearbox and is in normal second gear state.As it can be seen that after increasing an one-way clutch, gearbox Shift time shorten, motor control is relatively simple, and in shift process driver and passenger will not dynamic interruption impression, It is remarkably improved driving and riding quality.
Pure electric automobile provided by the present invention is equipped with two gear gearboxes of the pure electric automobile, since two gear becomes Fast case has above-mentioned technique effect, then the pure electric automobile for being equipped with the two gears gearbox should also have corresponding technical effect.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of typical pure electric automobile with two gear gearboxes;
Fig. 2 is a kind of structural schematic diagram of the pure electric automobile disclosed by the embodiments of the present invention with two gear gearboxes.
In figure:
1. motor 2. 1 keeps off 3. synchronizer of input gear, 4. second gear input gear, 5. input shaft, 6. jackshaft 7. 2 It is single to keep off the main deceleration input gear 12. of main 9. differential mechanism 10. 1 of deceleration output gear of output gear 8. gear output gear 11. To clutch
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
Herein, the terms such as " upper and lower, left and right " are positional relationships based on the figure and establishment, with reference to the accompanying drawings Difference, corresponding positional relationship is also possible to change therewith, therefore, can not be understood as to the exhausted of protection scope To restriction;Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or Sequentially.
Referring to FIG. 2, Fig. 2 is a kind of structural representation of the pure electric automobile disclosed by the embodiments of the present invention with two gear gearboxes Figure.
As shown, in a specific embodiment, two gear gearboxes of pure electric automobile provided by the invention, mainly by Input shaft 5, one keeps off input gear 2, second gear input gear 4, synchronizer 3, one and keeps off output gear 10 and second gear output gear 7 etc. Component is constituted.
Input shaft 5 is connect with motor 1 by spline, to obtain power, a gear input gear 2 and second gear input gear 4 with The mode of empty set is mounted on input shaft 5, can be rotated on input shaft 5, and a gear input gear 2 is compound gear, by The second gear that two co-axially fixed gear compositions respectively diameters lesser first gear and are relatively large in diameter, similarly, second gear Input gear 4 is also compound gear, is made of two co-axially fixed gears, respectively the lesser first gear of diameter and diameter The first gear of biggish second gear, a gear input gear 2 is identical as the diameter of the first gear of second gear input gear 4, with Convenient for covering engaged transmission with the tooth of synchronizer 3, the second gear of a gear input gear 2 and second gear input gear 4 be all larger than its The diameter of one gear, and the diameter of the second gear of second gear input gear 4 is greater than the straight of the second gear of a gear input gear 2 Diameter makes gearbox be in different gears to form different transmission ratios.
Gearbox switches gear by synchronizer 3, and synchronizer 3 is also mounted on input shaft 5, and is located at a gear input gear Between 2 and second gear input gear 4, tooth hub is fixedly connected by spline with input shaft 5, and the difference of position is covered according to tooth, There are three operating positions for tool: in the first operating position, tooth set is in left position, engages with the first gear of a gear input gear 2 Transmission, gearbox is in a gear state at this time, and in the second operating position, tooth set is in middle position, the with a gear input gear 2 The first gear of one gear and second gear input gear 4 not engaged transmission, gearbox be in neutral position state at this time, third work Position, tooth set are in right position, and the first gear engaged transmission with second gear input gear 4, gearbox is in second gear state at this time.
Further, have additional one-way clutch 12 on input shaft 5, the inner ring of one-way clutch 12 by spline with it is defeated Enter axis 5 to be fixedly connected, the outer ring of one-way clutch 12 is fixedly connected with a gear input gear 2, one-way clutch 12 and synchronizer 3 It is located at the two sides of a gear input gear 2.
Jackshaft 6 is parallel to input shaft 5, which is provided with a gear output gear 10 and second gear output gear 7, a gear input tooth The second gear of wheel 2 is meshed with a gear output gear 10, second gear and 7 phase of second gear output gear of second gear input gear 4 Engagement.
It is additionally provided with main deceleration input gear 11 between a gear output gear 10 and second gear output gear 7 on jackshaft 6, it is main 8 engaged transmission of deceleration input gear 11 and main deceleration output gear, main deceleration output gear 8 are fixedly connected on differential mechanism 9, differential The output shaft and wheel (not shown) at 9 both ends of device are sequentially connected.
The working principle of above-mentioned two gears gearbox is as follows:
The tooth set of pure electric vehicle starting stage, synchronizer 3 are in left position, at this time power transfer path are as follows: motor 1 → input 5 → synchronizer of axis 3 → mono- keeps off gear 10 → jackshaft of the output gear 6 → main deceleration input gear 11 → master of input gear 2 → mono- and subtracts 9 → wheel of fast 8 → differential mechanism of output gear.
From a gear, to rise to second gear process as follows: selecting suitable opportunity (accelerator releasing or dub brake when), motor Torque drops to 0 (driver perceives less than power interruption), and the tooth set of synchronizer is deviate from from left position to middle position neutral gear, and motor adds at this time Torque is carried, transmission system transmits power in a gear still through one-way clutch, at this time power transfer path are as follows: motor 1 → defeated Enter 5 → one-way clutch of axis 12 → mono- and keeps off gear 10 → jackshaft of the output gear 6 → main deceleration input gear 11 of input gear 2 → mono- → main deceleration output gear 8 → differential mechanism, 9 → wheel;
When needing to enter second gear, Motor torque drops to 0, and the tooth set of synchronizer is therefrom displaced position to the right at this time, is linked into two Gear, Motor torque are promoted, at this time power transfer path are as follows: motor 1 → input shaft, 5 → synchronizer, 3 → second gear input gear 4 → bis- Keep off 7 → jackshaft of output gear 6 → main deceleration input gear 11 → main deceleration output gear 8 → differential mechanism, 9 → wheel.
It is as follows that a gear process is down to from second gear: during second gear is driven, such as needing to drop to a gear, Motor torque 0 is dropped to, synchronizer is displaced to middle position from the right side, and motor can be increased torque at this time, transmits power, power from a gear by synchronizer The transmission path same starting stage.
As described above, when being shifted gears, when synchronizer 3 switches to the second working position from the first operating position (i.e. left position) After setting (position in i.e.), although the first gear of first gear and second gear input gear 4 that tooth set keeps off input gear 2 with one is not It is engaged transmission, is in neutral position state, still, input shaft 5 still can be defeated to a gear by the one-way clutch 12 added Enter gear 2 and transmit power, and then wheel is persistently driven to wheel by a gear output gear 10 and subsequent reduction gearing, makes to drive Multiply personnel will not dynamic interruption impression, after synchronizer switches to third operating position (i.e. right position), the tooth of synchronizer 3 The first gear engaged transmission of set and second gear input gear 4, into second gear state, at this point, according to the transmission ratio of setting it is found that one Gear input gear 2 and the revolving speed of one-way clutch outer ring are equal to or more than the revolving speed of one-way clutch inner ring, therefore input shaft 5 is not Power can be transmitted to a gear input gear 2 by one-way clutch 12, not influence gearbox and be in normal second gear state.It can See, after increasing an one-way clutch 12, the shift time of gearbox shortens, relatively simple is become to the control of motor 1, and And in shift process driver and passenger will not dynamic interruption impression, be remarkably improved driving and riding quality.
Above-described embodiment is only preferred embodiment of the invention, is specifically not limited thereto, on this basis can be according to reality It needs to make to have and targetedly adjust, to obtain different embodiments.For example, the concept of literary middle left and right be it is opposite, As needed, the position of a gear input gear 2 and second gear input gear 4 also can be interchanged, etc..Due to mode in the cards It is more, it just no longer illustrates one by one here.
In addition to above-mentioned two gears gearbox, the present invention provides a kind of pure electric automobile, including motor, is connected with the motor Gearbox and the wheel that is connect with the gearbox transmission, the gearbox be that pure electric automobile described above is kept off with two Gearbox, the motor 1 are connect with the pure electric automobile with the input shaft 5 of two gear gearboxes by spline, remaining structure is asked With reference to the prior art, repeats no more herein.
Pure electric automobile provided by the present invention is described in detail with two gear gearboxes and pure electric automobile above. Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used Core of the invention thought is understood in help.It should be pointed out that for those skilled in the art, not departing from , can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair In bright scope of protection of the claims.

Claims (10)

1. two gear gearboxes of pure electric automobile, including the input shaft for connecting motor and are rotatably arranged in the input shaft A gear input gear and second gear input gear, be equipped between a gear input gear and second gear input gear be installed on it is described The synchronizer of input shaft;There are three operating positions for the synchronizer tool: in the first operating position, tooth set is inputted with a gear The first gear engaged transmission of gear, in the second operating position, first gear and institute of the tooth set with the gear input gear State the first gear of second gear input gear not engaged transmission, in third operating position, tooth set and the second gear input gear First gear engaged transmission;It is characterized in that, the input shaft be equipped with one-way clutch, the inner ring of the one-way clutch with The input shaft is fixedly connected, and the outer ring of the one-way clutch is fixedly connected with the gear input gear.
2. two gear gearboxes of pure electric automobile according to claim 1, which is characterized in that further comprise being parallel to institute State the jackshaft of input shaft;The jackshaft is equipped with a gear output gear and second gear output gear, the gear input gear Second gear is meshed with the gear output gear, the second gear of the second gear input gear and the second gear output gear It is meshed.
3. two gear gearboxes of pure electric automobile according to claim 2, which is characterized in that the jackshaft is equipped with and master The main deceleration input gear of deceleration output gear engaged transmission.
4. two gear gearboxes of pure electric automobile according to claim 3, which is characterized in that further comprise for connecting The differential mechanism of wheel, the main deceleration output gear are set to the differential mechanism.
5. two gear gearboxes of pure electric automobile according to claim 4, which is characterized in that the main deceleration input gear Between a gear output gear and second gear output gear.
6. two gear gearboxes of pure electric automobile according to claim 5, which is characterized in that the one-way clutch and same Step device is located at the two sides of the gear input gear.
7. two gear gearboxes of pure electric automobile according to any one of claims 1 to 6, which is characterized in that the input The inner ring of the one-way clutch and the tooth hub of the synchronizer are fixedly connected on axis by spline.
8. two gear gearboxes of pure electric automobile according to any one of claims 1 to 6, which is characterized in that a gear Input gear and second gear input gear are installed on the input shaft in a manner of empty set.
9. pure electric automobile, it connect including motor, the gearbox being connected with the motor and with the gearbox transmission Wheel, which is characterized in that the gearbox is two gear speed changes of the described in any item pure electric automobiles of the claims 1 to 8 Case.
10. pure electric automobile according to claim 9, which is characterized in that the motor and the pure electric automobile are with two The input shaft for keeping off gearbox is connected by spline.
CN201711002063.0A 2017-10-24 2017-10-24 Pure electric automobile two gear gearboxes and pure electric automobile Pending CN109695668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711002063.0A CN109695668A (en) 2017-10-24 2017-10-24 Pure electric automobile two gear gearboxes and pure electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711002063.0A CN109695668A (en) 2017-10-24 2017-10-24 Pure electric automobile two gear gearboxes and pure electric automobile

Publications (1)

Publication Number Publication Date
CN109695668A true CN109695668A (en) 2019-04-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110725907A (en) * 2019-09-04 2020-01-24 淮阴工学院 Two-gear transmission of electric automobile and control method thereof
CN111043302A (en) * 2019-12-18 2020-04-21 汉腾汽车有限公司 Two-gear speed reducer electric drive variable speed gear shifting system
CN112360935A (en) * 2020-12-29 2021-02-12 李解 Transmission system for electric vehicle

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CN103851183A (en) * 2012-12-07 2014-06-11 上海汽车集团股份有限公司 Vehicle one-way clutch motive power coupling transmission control device and method as well as automobile
CN106286781A (en) * 2016-09-29 2017-01-04 吕宏 Double drive two-shift automatic variable speed device
CN206145100U (en) * 2016-09-29 2017-05-03 吕宏 Twoly drive two grades of automatic gearbox

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1541178A (en) * 1977-06-15 1979-02-21 Zahnradfabrik Friedrichshafen Multispeed reversing change-speed gear shiftable under load
CN2371064Y (en) * 1999-01-26 2000-03-29 姜校林 Planetary gear type two-gear automatic speed changing mechanism with overdrive clutch
EA200100183A1 (en) * 1999-06-07 2001-08-27 Полторацкий, Борис Федорович TRANSMISSION
KR20050042671A (en) * 2003-11-04 2005-05-10 현대자동차주식회사 Triple clutch transmission
CN2742235Y (en) * 2004-02-02 2005-11-23 杨斌彬 Uninterruption power gear speed changer
DE102012206782A1 (en) * 2012-04-25 2013-10-31 Zf Friedrichshafen Ag Multi-speed transmission
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CN206145100U (en) * 2016-09-29 2017-05-03 吕宏 Twoly drive two grades of automatic gearbox

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110725907A (en) * 2019-09-04 2020-01-24 淮阴工学院 Two-gear transmission of electric automobile and control method thereof
CN110725907B (en) * 2019-09-04 2021-06-22 淮阴工学院 Two-gear transmission of electric automobile and control method thereof
CN111043302A (en) * 2019-12-18 2020-04-21 汉腾汽车有限公司 Two-gear speed reducer electric drive variable speed gear shifting system
CN112360935A (en) * 2020-12-29 2021-02-12 李解 Transmission system for electric vehicle
CN112360935B (en) * 2020-12-29 2022-09-20 科大国创极星(芜湖)科技有限公司 Transmission system for electric vehicle

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