CN207809036U - Hybrid electric drive system and vehicle - Google Patents

Hybrid electric drive system and vehicle Download PDF

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Publication number
CN207809036U
CN207809036U CN201721924797.XU CN201721924797U CN207809036U CN 207809036 U CN207809036 U CN 207809036U CN 201721924797 U CN201721924797 U CN 201721924797U CN 207809036 U CN207809036 U CN 207809036U
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gear
output shaft
motor
double clutch
gear set
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CN201721924797.XU
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朱新明
穆金辉
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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Abstract

This disclosure relates to a kind of hybrid electric drive system and vehicle.The system comprises:Engine;First motor;Speed changer, the speed changer includes double clutch, the first gear gear set, the second gear gear set, synchronizer, the output shaft of the engine and the input terminal of double clutch connect, first output shaft of the double clutch is connected to the line shaft of the first motor, and the second output shaft of the double clutch is optionally connected to the first gear gear set or the second gear gear set by the synchronizer;Output section, the output section are used to export by the first gear gear set or the power of the second gear gear set transmission to drive vehicle.

Description

Hybrid electric drive system and vehicle
Technical field
This disclosure relates to a kind of hybrid electric drive system and vehicle.
Background technology
World today's facing mankind energy shortage and environmental degradation two is challenged greatly, and orthodox car is increasingly subject to oil crisis Serious puzzlement, energy conservation and environmental protection is increasingly becoming the development topic of automobile industry.In recent years, there are two types of different dynamic source, realizations for tool The hybrid vehicle for reducing oil consumption and discharge, has obtained development and application, and put into commodity production and introduce to the market.
Hybrid electric drive system is generally made of engine, generator, motor, electrical source of power etc., engine and dynamic Power power supply provides power for vehicle jointly, this results in its structure and is usually relatively complex, and occupied space is larger, and cost is higher.
Utility model content
Purpose of this disclosure is to provide a kind of hybrid electric drive system, the system structure is simple and can realize engine Two gear drivings.
To achieve the goals above, the disclosure provides a kind of hybrid electric drive system, including:Engine;First motor; Speed changer, the speed changer include double clutch, the first gear gear set, the second gear gear set, synchronizer, the engine Output shaft and the input terminal of double clutch connect, the first output shaft of the double clutch is connected to the dynamic of the first motor Power axis, the second output shaft of the double clutch by the synchronizer be optionally connected to the first gear gear set or Second gear gear set;Output section, the output section is for exporting by the first gear gear set or the second gear gear set The power of transmission is to drive vehicle.
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 second output shaft is selectively connected by the synchronizer To first driving gear or the second driving gear.
Optionally, the speed changer further includes transmission output shaft, the transmission output shaft and first driven tooth Wheel connection, the transmission output shaft are connected with second driven gear, and the output section is for exporting by the speed changer The power that output shaft transmits is to drive vehicle.
Optionally, the synchronizer is between first driving gear and the second driving gear, the double clutch Positioned at the same side of the first gear gear set and the second gear gear set.
Optionally, the system also includes the second motor, the output section is additionally operable to export from second motor Power is to drive vehicle.
Optionally, the second output shaft of first driving gear and the second driving gear empty set in the double clutch On, the line shaft of second motor and second output shaft are coaxially connected.
Optionally, the system also includes clutch, the line shaft of second motor passes through with second output shaft The clutch connection.
Optionally, the output shaft of the line shaft and the speed changer of second motor is coaxially connected.
In the disclosure, by the way that double clutch is arranged so that the power of engine can be by double clutch selectively Wheel is supplied to for driving or being supplied to first motor for power generation, by the way that synchronizer is arranged so that engine can It is simple in structure to realize two gear drivings, it is easy to operate.
The disclosure also provides a kind of vehicle, including hybrid electric drive 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 schematic block diagram according to the hybrid electric drive system of the first embodiment of the disclosure;
Fig. 2 is the schematic block diagram according to the hybrid electric drive system of second of embodiment of the disclosure;
Fig. 3 is the schematic block diagram according to the hybrid electric drive system of the third embodiment of the 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.
Fig. 1 is the schematic block diagram according to the hybrid electric drive system of the first embodiment of the disclosure.Such as Fig. 1 Shown, the hybrid electric drive system according to the first embodiment of the disclosure includes engine 1, speed changer, output section, One motor 2.The power of engine 1 passes to output section by speed changer, and output section exports power to drive vehicle.
Speed changer includes double clutch 4, synchronizer 10, the first gear gear set, the second gear gear set.Wherein, such as Fig. 1 Shown, double clutch 4 has input terminal 41, the first output shaft 42 and the second output shaft 43, the output shaft of engine 1 and double clutches The input terminal 41 of device 4 connects, and the first output shaft 42 of double clutch 4 is connected with first motor 2, the second output of double clutch 4 Axis 43 is optionally connected to the first gear gear set or the second gear gear set by synchronizer 10.Double clutch 4 is located at the The same side of one shift gear group and the second gear gear set, 42 empty set of the first output shaft of double clutch 4 is in the second output shaft On 43, so that the more compact structure of hybrid electric drive system, convenient for being arranged on vehicle.
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 is disconnected with the first output shaft 42 and the second output shaft 43.When needing to engage one of driven disc, can control Shell processed 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 and one of the first output shaft 42 and the second output shaft 43 are sequentially connected, so that the power that input terminal transmits can lead to Cross an output 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 to defeated in input terminal and two It is switched between the various modes such as shaft is all off and one of input terminal 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.
First driving gear 5 and 7 empty set of the second driving gear are on the second output shaft 43 of double clutch 4.Second output Synchronizer 10 is additionally provided on axis 43, synchronizer 10 is between the first driving gear 5 and the second driving gear 7, synchronizer 10 Selectively the first driving gear 5 or the second driving gear 7 can be engaged with the second output shaft 43.Such as it is shown in Fig. 1 In embodiment, the clutch collar of synchronizer 10 is moved to the left engageable first driving gear 5, moves right engageable second actively Gear 7.
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, when needing to drive wheel using engine 1, the input terminal 41 and second of double clutch 4 is controlled Output shaft 43 is connected, then the power of engine 1 passes sequentially through double clutch 4, synchronizer 10, the first gear gear set or second gear Position gear set, transmission output shaft 9 are transferred to output section.By controlling synchronizer 10 and the first gear gear set or the second gear Gear set engages, and engine two may be implemented and keep off power output, simple in structure, easy to operate.
First motor 2 can generate electricity under the drive of engine 1.The line shaft of first motor 2 can be with double clutch 4 The first output shaft 42 be directly connected to, can also be connected by intermediate transmission mechanism.The first embodiment shown in Fig. 1 In, the first output shaft 42 and the line shaft of first motor 2 of double clutch 4 are directly connected to.
Output section is configured to for the power that speed changer exports to be transferred to the wheel of vehicle.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, output gear 14 are engaged with the final gear 15 of differential mechanism 16.The function of differential mechanism 16 is When turn inside diameter travel or on uneven road surface when driving, so that left and right wheels is rolled with different angular speed, to ensure both sides Make PURE ROLLING between wheel and ground.Final gear 15 is provided on differential mechanism 16, final gear 15 for example can be with cloth It sets on the shell of differential mechanism 16.
In second of embodiment shown in Fig. 2, hybrid electric drive system further includes the second motor 3, and output section is also For exporting the power from the second motor 3 to drive vehicle.Second motor 3 can not only be used for motor for drive vehicle, But also as generator for power generation.
Second motor 3 can be coupled in hybrid electric drive system in several ways.Shown in Fig. 2 second is real It applies in mode, the line shaft of the second motor 3 and the second output shaft 43 of double clutch 4 are coaxially connected, so that the second motor 3 43 synchronous rotary of line shaft and the second output shaft.
Further, in second of embodiment shown in Fig. 2, the of the line shaft of the second motor 3 and double clutch 4 It can be provided with clutch 13 between two output shafts 43.By the way that clutch 13 is arranged so that drive operating mode, Ke Yitong in pure fuel oil The separation of control clutch 13 is crossed, the second motor 3 is disengaged from the second output shaft 43, to reduce load, improves work effect Rate.
Fig. 3 is the schematic block diagram according to the third embodiment of the disclosure.The third embodiment with second The difference of embodiment essentially consists in:In the third embodiment, the line shaft of the second motor 3 passes through clutch 13 and speed change Device output shaft 9 is connected.
The hybrid electric drive system of the disclosure can have following operating mode;
One, the second motor pure electric vehicle operating mode.The clutch collar and the first driven gear 6 of control synchronizer 10 and the second driven tooth The engagement of one of wheel 8, the second output shaft 43 and the input terminal 41 of control double clutch 4 disconnect, and the second motor 3 passes sequentially through first gear Position gear set or the second gear gear set, transmission output shaft 9, output gear 14, final gear 15, differential mechanism 16 drive vehicle Wheel.The operating mode is mainly used for situations such as starting, middle low speed or urban pavement, while battery has higher electricity.The operating mode Advantage is that the second motor 3 directly drives, and transmission chain is most short, it is minimum to participate in the component of work, can reach highest transmission effect Rate and minimum noise.
Two, operating mode in parallel.Engine 1, first motor 2 and the second motor 3 drive wheel, control the defeated of double clutch 4 Enter end 41 to be all connected with the first output shaft 42 and the second output shaft 43, two motor adjustable speeds are to coordinate transmission output shaft 9 Angular speed.The advantages of operating mode, is engine 1, first motor 2 and the second motor 3 while driving, and can play maximum power Performance.
Three, series connection operating mode.The input terminal 41 of control double clutch 4 is connected with the first output shaft 42, the engagement of synchronizer 10 Set is engaged with the first driving gear 5 or the second driving gear 7, and engine 1 drives first motor 2 to generate electricity, and the second motor 3 drives Motor car wheel.
Four, engine independently drives operating mode.Control double clutch 4 input terminal 41 be connected with the second output shaft 43, it is double from The input terminal 41 of clutch 4 and the first output shaft 42 disconnect, and first motor 2 and the second motor 3 do not work, can pass through synchronizer 10 realize gear switching.
Five, engine driving charging operating mode.On the basis of the independent driving operating mode of engine 1, the input of double clutch 4 is controlled End 41 is connected with the first output shaft 42, and engine 1 drives first motor 2 to generate electricity simultaneously.
Six, braking/deceleration feedback operating mode.Second motor, 3 brake wheel simultaneously generates electricity.The operating mode be mainly used for vehicle descending, Braking is slowed down.When the advantages of operating mode is to slow down or brake, reach the maximization of feedback energy.
Seven, series-parallel connection operating mode.On the one hand engine 1 drives first motor 2 to generate electricity, on the other hand pass through double clutch 4 and gear Power is transferred to differential mechanism 16 to drive wheel, the second motor 3 to drive wheel by differential mechanism 16 by position gear set.Operating mode master Be used to accelerate, climb etc. larger load occasion and electricity it is few in the case of.The advantages of operating mode is can to play engine 1 Whole power, not only ensured the dynamic property of vehicle, but also power generation can be carried out at the same time, and kept the electricity of battery.
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 (9)

1. a kind of hybrid electric drive system, which is characterized in that including:
Engine (1);
First motor (2);
Speed changer, the speed changer include double clutch (4), the first gear gear set, the second gear gear set, synchronizer (10), the output shaft of the engine (1) is connect with the input terminal (41) of double clutch (4), and the first of the double clutch (4) Output shaft (42) is connected to the line shaft of the first motor (2), and the second output shaft (43) of the double clutch (4) passes through institute It states synchronizer (10) and is optionally connected to the first gear gear set or the second gear gear set;
Output section, the output section be used to export the power that is transmitted by the first gear gear set or the second gear gear set with Drive vehicle.
2. system 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 synchronizer (10) is selectively by first driving gear (5) or the second driving gear (7) and second output shaft (43) it engages.
3. system according to claim 2, which is characterized in that the speed changer further includes transmission output shaft (9), described Transmission output shaft (9) and first driven gear (6) connection, the transmission output shaft (9) and second driven tooth (8) connection is taken turns, the output section is for exporting the power transmitted by the transmission output shaft (9) to drive vehicle.
4. system according to claim 2, which is characterized in that the synchronizer (10) is located at first driving gear (5) between the second driving gear (7), the double clutch (4) is located at the first gear gear set and the second shift gear The same side of group, the first output shaft (42) empty set of the double clutch (4) is on the second output shaft (43).
5. system according to claim 2, which is characterized in that the system also includes the second motor (3), the output sections Power of the output from second motor (3) is additionally operable to drive vehicle.
6. system according to claim 5, which is characterized in that first driving gear (5) and the second driving gear (7) On the second output shaft (43) of the double clutch (4), the line shaft of second motor (3) exports empty set with described second Axis (43) is coaxially connected.
7. system according to claim 6, which is characterized in that the system also includes clutch (13), second electricity The line shaft of machine (3) is connect with second output shaft (43) by the clutch (13).
8. system according to claim 5, which is characterized in that the line shaft of second motor (3) and the speed changer Output shaft (9) is coaxially connected.
9. a kind of vehicle, which is characterized in that include the hybrid electric drive system according to any one of claim 1-8.
CN201721924797.XU 2017-12-29 2017-12-29 Hybrid electric drive system and vehicle Active CN207809036U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109263460A (en) * 2018-11-14 2019-01-25 奇瑞汽车股份有限公司 Hybrid power transmission system, control method and automobile
CN109795309A (en) * 2019-03-22 2019-05-24 合肥工业大学 A kind of double clutch coupled hybrid systems
CN110962574A (en) * 2018-09-29 2020-04-07 比亚迪股份有限公司 Hybrid power driving system and vehicle
CN111497590A (en) * 2020-04-16 2020-08-07 东风汽车集团有限公司 Two-gear variable-speed driving system of plug-in hybrid electric vehicle
CN112744065A (en) * 2019-10-30 2021-05-04 比亚迪股份有限公司 Hybrid power system and vehicle with same
CN113580916A (en) * 2021-08-05 2021-11-02 南通大任永磁电机制造有限公司 Dual-motor dual-clutch dual-speed-ratio electric vehicle power assembly and electric vehicle
CN113580918A (en) * 2021-09-02 2021-11-02 崔小雷 Dual-motor hybrid driving system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962574A (en) * 2018-09-29 2020-04-07 比亚迪股份有限公司 Hybrid power driving system and vehicle
CN110962574B (en) * 2018-09-29 2021-06-18 比亚迪股份有限公司 Hybrid power driving system and vehicle
CN109263460A (en) * 2018-11-14 2019-01-25 奇瑞汽车股份有限公司 Hybrid power transmission system, control method and automobile
CN109795309A (en) * 2019-03-22 2019-05-24 合肥工业大学 A kind of double clutch coupled hybrid systems
CN112744065A (en) * 2019-10-30 2021-05-04 比亚迪股份有限公司 Hybrid power system and vehicle with same
CN111497590A (en) * 2020-04-16 2020-08-07 东风汽车集团有限公司 Two-gear variable-speed driving system of plug-in hybrid electric vehicle
CN113580916A (en) * 2021-08-05 2021-11-02 南通大任永磁电机制造有限公司 Dual-motor dual-clutch dual-speed-ratio electric vehicle power assembly and electric vehicle
CN113580918A (en) * 2021-09-02 2021-11-02 崔小雷 Dual-motor hybrid driving system

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