CN207814352U - Speed changer, power-driven system and vehicle - Google Patents

Speed changer, power-driven system and vehicle Download PDF

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Publication number
CN207814352U
CN207814352U CN201721925635.8U CN201721925635U CN207814352U CN 207814352 U CN207814352 U CN 207814352U CN 201721925635 U CN201721925635 U CN 201721925635U CN 207814352 U CN207814352 U CN 207814352U
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CN
China
Prior art keywords
gear
output shaft
double clutch
speed changer
driven
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Active
Application number
CN201721925635.8U
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Chinese (zh)
Inventor
穆金辉
朱新明
杨冬生
白云辉
陆国祥
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201721925635.8U priority Critical patent/CN207814352U/en
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Abstract

This disclosure relates to a kind of speed changer, power-driven system and vehicle.The speed changer includes double clutch, the first gear gear set, the second gear gear set, and the first output shaft of the double clutch is connected to the first gear gear set, and the second output shaft of the double clutch is connected to the second gear gear set.By controlling the engagement or separation of double clutch, the gear switching of speed changer two may be implemented.

Description

Speed changer, power-driven system and vehicle
Technical field
This disclosure relates to a kind of speed changer, power-driven system and vehicle.
Background technology
Speed changer is one of principal assembly of car transmissions.The actual use situation of automobile is extremely complex, such as starting, Idling parking low-speed or high-speed traveling, accelerates, slows down, climbing and reversing etc., and this requires the driving force of automobile and speed can be Variation in sizable range.The output torque and rotation speed change range of current widely used piston-mode motor are smaller, are The driving conditions often changed are adapted to, while engine under advantageous operating mode (power is higher, oil consumption is relatively low) being made to work, are needed Speed changer is set in transmission system.And for using motor-driven new-energy automobile, although the rotation speed change model of motor Enclose larger, but high efficiency region when in order to work with motor matches, and is also required to be arranged in transmission system under some cases and becomes Fast device.The speed changer of the prior art is usually complicated, and cost is higher.
Utility model content
Purpose of this disclosure is to provide a kind of speed changers simple in structure.
To achieve the goals above, the disclosure provides a kind of speed changer, including double clutch, the first gear gear set, the First output shaft of two shift gear groups, the double clutch is connected to the first gear gear set, the double clutch Second output shaft is connected to the second gear gear set.
Optionally, the double clutch is located at the same side of the first gear gear set and the second gear gear set, institute The first output shaft empty set of double clutch is stated on the second output shaft.
Optionally, the double clutch is between the first gear gear set and the second gear gear set.
Optionally, the speed changer further includes transmission output shaft, the transmission output shaft and the first gear tooth Wheel group connects, and the transmission output shaft is connect with the second gear gear set.
Optionally, the first gear gear set includes the first driving gear and the first driven gear, second gear Gear set includes the second driving gear and the second driven gear, and the first output shaft of the double clutch is connected to first master Moving gear, the second output shaft of the double clutch are connected to second driving gear, the transmission output shaft and described First driven gear connects, and the transmission output shaft is connected with second driven gear.
Optionally, first driving gear and the intermeshing of the first driven gear, second driving gear and second Driven gear is intermeshed.
In the disclosure, pass through the combination of double clutch and two shift gear groups, enabling obtain a kind of structure letter Single, easy to operate two-gear transmission.
The disclosure also provides a kind of power-driven system, including motor, speed changer as described above and output section, institute The line shaft for stating motor is connected with the input terminal of the double clutch, and the output section is exported for transmitting from the speed changer Power to drive vehicle.
Optionally, the speed changer further includes transmission output shaft, the transmission output shaft and the first gear tooth Wheel group connects, and the transmission output shaft is connect with the second gear gear set, and the output section is for transmitting from described The power of transmission output shaft is to drive vehicle.
Optionally, the output section includes output gear and differential mechanism, and it is defeated that the output gear is mounted on the speed changer On shaft, the output gear is engaged with the final gear of the differential mechanism.
Optionally, the double clutch is integrated in the motor, the line shaft of the motor and the double clutch Input terminal is formed as one.
The disclosure also provides a kind of vehicle, including power-driven system as described above.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the structural schematic diagram according to the speed changer of an embodiment of the present disclosure;
Fig. 2 is the schematic block diagram according to the power-driven system of an embodiment of the present disclosure.
Specific implementation mode
The specific implementation mode of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched The specific implementation mode stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
According to one aspect of the disclosure, a kind of speed changer is provided, as shown in Figure 1, the speed changer include double clutch 4, First gear gear set, the second gear gear set.Double clutch 4 has input terminal 41, the first output shaft 42 and the second output shaft 43, the output shaft of engine 1 is connect with the input terminal 41 of double clutch 4, and the first output shaft 42 of double clutch 4 is connected to first Second output shaft 43 of shift gear group, double clutch 4 is connected to the second gear gear set.Double clutch 4 is arranged in first gear The same side of position gear set and the second gear gear set, 42 empty set of the first output shaft is on the second output shaft 43, so that power The more compact structure of drive system, convenient for being arranged on vehicle.In other embodiments, double clutch 4 can also be arranged Between first gear gear set and the second gear gear set.
The input terminal 41 of double clutch 4 can be the shell of double clutch 4, and double clutch 4 further includes two driven discs, double First output shaft 42 of clutch 4 can be with one of driven disc by key connection, and the second output shaft 43 of double clutch 4 can To pass through key connection with another driven disc.Usually, the shell of double clutch 4 and two driven discs can be disconnected all, I.e. input terminal 41 is disconnected with the first output shaft 42 and the second output shaft 43.It, can be with when needing to engage one of driven disc Control shell carries out engagement to synchronous rotary with corresponding driven disc, and driven disc drives corresponding output shaft synchronous to rotate again, I.e. input terminal 41 and one of the first output shaft 42 and the second output shaft 43 are sequentially connected, so that the power that input terminal 41 transmits It can be exported by one in the first output shaft 42 and the second output shaft 43.
It should be appreciated that the specific engagement state of double clutch 4 is controlled the influence of strategy, for those skilled in the art For, can according to actually required transmission mode adaptive settings control strategy, so as in input terminal 41 and two It is switched between the various modes such as output shaft is all off and one of input terminal 41 and two output shafts are sequentially connected.
First gear gear set include the first driving gear 5 and the first driven gear 6, the first driving gear 5 and first from Moving gear 6 can be engaged directly, can also be engaged with intermediate gear, to be sequentially connected by the intermediate gear.Second gear Position gear set includes the second driving gear 7 and the second driven gear 8, and the second driving gear 7 and the second driven gear 8 can be direct Engagement, can also engage with intermediate gear, to be sequentially connected by the intermediate gear.First gear gear set can be low Shift gear group, the second gear gear set can be high gear gear set, and but the present disclosure is not limited thereto, in other embodiment In, the first gear gear set can be high gear gear set, and the second gear gear set can be low gear gear set.
Speed changer can also include transmission output shaft 9, and the first driven gear 6 and the second driven gear 8 are installed in change On fast device output shaft 9 so that transmission output shaft 9 can be with 8 synchronous rotary of the first driven gear 6 and the second driven gear.Nothing Power by the power from the first gear gear set still from the second gear gear set, by transmission output shaft 9 to Outer output.
In the disclosure, pass through the combination of double clutch 4 and two shift gear groups, enabling obtain a kind of structure letter Single, easy to operate two-gear transmission.
Specifically, when control double clutch 4 input terminal 41 be connected with the first output shaft 42, the input terminal of double clutch 4 41 and second output shaft 43 disconnect when, from the input terminal 41 of double clutch 4 input power successively pass through double clutch 4 first Output shaft 42, the first driving gear 5, the first driven gear 6 are transferred to transmission output shaft 9.
When control double clutch 4 input terminal 41 be connected with the second output shaft 43, the input terminal 41 and first of double clutch 4 When output shaft 42 disconnects, the power inputted from the input terminal 41 of double clutch 4 passes through the second output shaft of double clutch 4 successively 43, the second driving gear 7, the second driven gear 8 are transferred to transmission output shaft 9.
According to another aspect of the present disclosure, a kind of power-driven system is provided, as shown in Fig. 2, the system include motor 2, Speed changer as described above and output section.The line shaft of motor 2 is connected to the input terminal 41 of double clutch 4, and output section is used for The power of speed changer output is transmitted to drive vehicle.
In one embodiment, double clutch 4 can be integrated in inside motor 2, input terminal 41 and the electricity of double clutch 4 The line shaft of machine 2 is formed as one, and to reduce the axial space of power-driven system, makes more compact structure.
For example, output section may include output gear 14, can also include output gear 14 and differential mechanism 16.Output gear 14 be mounted on transmission output shaft 9 on and with 9 synchronous rotary of transmission output shaft, the main deceleration of output gear 14 and differential mechanism 16 Gear 15 engages.The function of differential mechanism 16 be when turn inside diameter travel or on uneven road surface when driving, make left and right wheels with Different angular speed rolls, to ensure to make PURE ROLLING between both sides wheel and ground.Main reducing gear is provided on differential mechanism 16 Wheel 15, final gear 15 can be for example arranged on the shell of differential mechanism 16.
In the disclosure, by the way that double clutch 4 and two shift gear groups to be dexterously combined together, enabling obtain Obtain a kind of two-gear transmission simple in structure, easy to operate.It, can be certain since the speed changer can provide two gears The rotating speed and torque of regulation motor 2 in degree improve the working efficiency of motor 2.
In the disclosure, the gear switching of speed changer realizes that double clutch 4 can allow for by double clutch 4 The disconnection process of the engaging process and another driven disc of one driven disc overlaps when shift switching, to avoid torque from transmitting Momentary interruption, ensure shift process and vehicle operation ride comfort.The synchronizer more complicated compared to mechanical structure, it is double from Clutch all has greater advantage either in terms of ride comfort or reliability.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (11)

1. a kind of speed changer, which is characterized in that including double clutch (4), the first gear gear set, the second gear gear set, institute The first output shaft (42) for stating double clutch (4) is connected to the first gear gear set, and the second of the double clutch (4) is defeated Shaft (43) is connected to the second gear gear set.
2. speed changer according to claim 1, which is characterized in that the double clutch (4) is located at the first gear tooth The same side of wheel group and the second gear gear set, the first output shaft (42) empty set of the double clutch (4) is in the second output shaft (43) on.
3. speed changer according to claim 1, which is characterized in that the double clutch (4) is located at the first gear tooth Between wheel group and the second gear gear set.
4. speed changer according to claim 1, which is characterized in that the speed changer further includes transmission output shaft (9), institute It states transmission output shaft (9) to connect with the first gear gear set, the transmission output shaft (9) and the second gear tooth Wheel group connects.
5. speed changer according to claim 1, which is characterized in that the first gear gear set includes the first driving gear (5) and the first driven gear (6), the second gear gear set include the second driving gear (7) and the second driven gear (8), The first output shaft (42) of the double clutch (4) is connected to first driving gear (5), and the of the double clutch (4) Two output shafts (43) are connected to second driving gear (7), the transmission output shaft (9) and first driven gear (6) it connects, the transmission output shaft (9) and second driven gear (8) connection.
6. speed changer according to claim 5, which is characterized in that first driving gear (5) and the first driven gear (6) it is intermeshed, second driving gear (7) and the second driven gear (8) intermeshing.
7. a kind of power-driven system, which is characterized in that including motor (2), the change according to any one of claim 1-6 Fast device and output section, the line shaft of the motor (2) are connected with the input terminal (41) of the double clutch (4), the output Portion is used to transmit the power exported from the speed changer to drive vehicle.
8. system according to claim 7, which is characterized in that the speed changer further includes transmission output shaft (9), described Transmission output shaft (9) is connect with the first gear gear set, the transmission output shaft (9) and second shift gear Group connection, the output section are used to transmit the power from the transmission output shaft (9) to drive vehicle.
9. system according to claim 8, which is characterized in that the output section includes output gear (14) and differential mechanism (16), the output gear (14) is mounted on the transmission output shaft (9), the output gear (14) and the differential mechanism (16) final gear (15) engagement.
10. system according to claim 7, which is characterized in that the double clutch (4) is integrated in the motor (2), The input terminal (41) and the line shaft of the motor (2) of the double clutch (4) are formed as one.
11. a kind of vehicle, which is characterized in that include the power-driven system according to any one of claim 7-10.
CN201721925635.8U 2017-12-29 2017-12-29 Speed changer, power-driven system and vehicle Active CN207814352U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721925635.8U CN207814352U (en) 2017-12-29 2017-12-29 Speed changer, power-driven system and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721925635.8U CN207814352U (en) 2017-12-29 2017-12-29 Speed changer, power-driven system and vehicle

Publications (1)

Publication Number Publication Date
CN207814352U true CN207814352U (en) 2018-09-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019129202A1 (en) * 2017-12-29 2019-07-04 比亚迪股份有限公司 Gearbox, power drive system, and vehicle
WO2020079070A1 (en) * 2018-10-17 2020-04-23 Robert Bosch Gmbh Power-shift double-clutch transmission
EP3828437A1 (en) * 2018-09-25 2021-06-02 Dana Automotive Systems Group , LLC Multi-speed gearbox and the drive axle made therewith

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019129202A1 (en) * 2017-12-29 2019-07-04 比亚迪股份有限公司 Gearbox, power drive system, and vehicle
EP3828437A1 (en) * 2018-09-25 2021-06-02 Dana Automotive Systems Group , LLC Multi-speed gearbox and the drive axle made therewith
WO2020079070A1 (en) * 2018-10-17 2020-04-23 Robert Bosch Gmbh Power-shift double-clutch transmission

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