CN217944893U

CN217944893U - Hybrid power assembly and vehicle

Info

Publication number: CN217944893U
Application number: CN202222408112.3U
Authority: CN
Inventors: 郭帅
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-12-02
Anticipated expiration: 2032-09-08

Abstract

The utility model provides a hybrid assembly and vehicle, hybrid assembly include the engine and with the derailleur assembly that the engine links to each other, the derailleur assembly includes driving motor and derailleur, the engine includes the bent axle, the power take off end of engine is connected with the derailleur input shaft transmission of derailleur, driving motor transmission is connected on the derailleur input shaft; the engine is provided with a timing system, and the timing system and the transmission are positioned on the same side of the engine along the axial direction of the crankshaft. The embodiment of the utility model provides a hybrid assembly has reduced this hybrid assembly's axial length along the bent axle, and hybrid assembly's space utilization is higher, the arrangement of the hybrid assembly of being convenient for.

Description

Hybrid power assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to hybrid assembly and vehicle.

Background

The engine is equipped with a Variable Valve Timing (VVT) system for adjusting the Timing of Valve opening and closing according to various engine load conditions and rotational speeds.

In the prior art, a powertrain includes an engine and a transmission assembly, the engine being provided with a variable valve timing system including a phase adjuster protruding out of the engine.

However, the variable valve timing system and the transmission assembly occupy a large space, and the power assembly may interfere with the cabin longitudinal beam during arrangement, that is, the space utilization rate of the power assembly is low, which is not favorable for arrangement of the power assembly.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a hybrid power assembly to solve the technical problem of low space utilization of the power assembly in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a hybrid powertrain comprises an engine and a transmission assembly connected with the engine, wherein the transmission assembly comprises a driving motor and a transmission, the engine comprises a crankshaft, a power output end of the engine is in transmission connection with a transmission input shaft of the transmission, and the driving motor is in transmission connection with the transmission input shaft;

the engine is provided with a timing system, and the timing system and the transmission are positioned on the same side of the engine along the axial direction of the crankshaft.

Optionally, the engine is provided with a suspension bracket on the other side of the engine in the axial direction of the crankshaft, and the engine further includes a cylinder cover, and the suspension bracket is disposed on the cylinder cover.

Optionally, the engine further comprises an intake camshaft, and the timing system comprises an intake phase adjuster connected to an end of the intake camshaft adjacent to the transmission.

Optionally, the engine further comprises an exhaust camshaft, and the timing system further comprises an exhaust phase adjuster connected to an end of the exhaust camshaft adjacent to the transmission.

Optionally, the timing system further includes a timing cover, the engine further includes a cylinder head cover, a cylinder block and an oil pan, an upper end and a lower end of the timing cover are respectively in sealing connection with the cylinder head cover and the oil pan, and one side of the timing cover, which faces away from the transmission, is in sealing connection with the cylinder head and the cylinder block.

Optionally, the timing system further includes an electromagnetic valve detachably connected to the timing cover, the timing cover is provided with a joint surface connected to the transmission assembly, and the electromagnetic valve protrudes out of a plane where the joint surface is located.

Optionally, the solenoid valves include a first solenoid valve connected to the intake phase adjuster and a second solenoid valve connected to the exhaust phase adjuster.

Optionally, the transmission assembly further comprises a clutch, the power output end of the engine is connected with the transmission input shaft through the clutch, and the clutch is located between the engine and the driving motor.

Optionally, the transmission assembly further includes a clutch housing, and the joint surface of the timing cover is detachably connected to the clutch housing.

Compared with the prior art, the utility model provides a hybrid assembly has following advantage:

the embodiment of the utility model provides an in, the power take off end of engine is connected with the derailleur input shaft transmission of derailleur, and the driving motor transmission is connected on the derailleur input shaft, is provided with timing system on the engine, and timing system and derailleur lie in the engine along the same one side of the axial direction of bent axle. The length of the convex part in the timing system is not required to be calculated when the length of the hybrid power assembly comprising the engine, the driving motor and the transmission is calculated, namely, the length of the hybrid power assembly along the axial direction of a crankshaft of the engine is reduced, the space utilization rate of the hybrid power assembly is high, the arrangement of the hybrid power assembly is convenient, and the interference of the hybrid power assembly with a cabin longitudinal beam when the hybrid power assembly is installed is avoided.

Another object of the present invention is to provide a vehicle, to solve the technical problem of low space utilization of the power assembly in the vehicle in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a vehicle comprising a hybrid powertrain as claimed in any preceding claim.

The advantages of the vehicle and the hybrid powertrain described above with respect to the prior art are the same and will not be described herein.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a hybrid power assembly according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of an engine in a hybrid power assembly according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of an engine in a hybrid power assembly according to an embodiment of the present invention;

fig. 4 is a schematic three-dimensional structure diagram of an engine in a hybrid power assembly provided by the embodiment of the present invention.

Description of the reference numerals:

10-engine, 20-transmission assembly, 11-cylinder cover, 12-cylinder cover, 13-cylinder body, 14-oil pan, 15-timing system, 16-suspension bracket, 21-transmission, 22-clutch housing, 121-first sealing surface, 131-second sealing surface, 141-third sealing surface, 142-connecting surface, 151-timing cover, 152-intake phase adjuster, 153-exhaust phase adjuster, 154-combining surface, 155-first electromagnetic valve, 156-second electromagnetic valve, 157-timing chain.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the prior art, a hybrid powertrain in a hybrid vehicle includes an engine, a P2 motor, and a transmission, wherein a variable valve timing system is configured on the engine, the variable valve timing system is disposed at a front end of the engine, a suspension bracket is disposed on a timing cover of the variable valve timing system, and a rear end of the engine is connected to the P2 motor and the transmission. The phase adjuster in the variable valve timing system protrudes out of the engine along the axial direction of the camshaft, namely, part of the upper part of the timing system protrudes out of the lower part of the timing system, and the arrangement of the P2 motor and the transmission is added, so that the length of a power assembly comprising the engine, the P2 motor and the transmission along the axial direction of the camshaft is longer, and the length of a hybrid power assembly along the axial direction of the crankshaft of the engine at least comprises the length of a suspension bracket, the axial protruding length of the upper part in the variable valve timing system, the length of an engine body, the length of the P2 motor and the length of the transmission, namely, the length of the hybrid power assembly along the axial direction of the camshaft in the prior art is longer, and the hybrid power assembly has lower space utilization rate and is not beneficial to the arrangement of the hybrid power assembly.

In order to solve the problems, the application provides a hybrid power assembly and a vehicle.

In a first aspect, embodiments of the present invention relate to a hybrid powertrain. Referring to fig. 1, fig. 1 shows a schematic structural diagram of a hybrid power assembly provided by an embodiment of the present invention. The embodiment of the utility model provides a hybrid assembly, including engine 10 and the derailleur assembly 20 that links to each other with engine 10, derailleur assembly 20 includes driving motor and derailleur 21, engine 10 includes the bent axle, and the power take off end of engine 10 is connected with the derailleur input shaft transmission of derailleur 21, and the driving motor transmission is connected on the derailleur input shaft; the engine 10 is provided with a timing system, and the timing system 15 and the transmission 21 are located on the same side of the engine 10 in the axial direction of the crankshaft.

Specifically, the hybrid powertrain is applied to a vehicle, which is a hybrid vehicle, and when the hybrid powertrain is disposed on the vehicle, the height direction of the engine 10 is the same as the height direction of the entire vehicle. The crankshaft in the engine 10 is located at a lower portion of the engine 10 in a height direction thereof, and a length direction of the engine 10 coincides with an axial direction of the crankshaft. The longitudinal direction of the hybrid assembly coincides with the longitudinal direction of the engine 10, and the height direction of the hybrid assembly coincides with the height direction of the engine 10.

The power output end of the engine 10 is one end of the crankshaft, and the power output end of the engine 10 is located at the rear end of the engine. The driving motor is a P2 motor which can independently drive a vehicle, and the driving connection of the driving motor and the transmission input shaft can be that the driving motor is directly arranged on the transmission input shaft or that the driving motor is in transmission connection with the transmission input shaft through a transmission gear. The vehicle further comprises a power battery, the driving motor is electrically connected with the power battery, the power battery is used for providing electric energy for the driving motor, and the driving motor is used for converting the received electric energy into mechanical energy. The timing system 15 is specifically a variable valve timing system VVT, the timing system 15 and the transmission 21 are located on the same side in the longitudinal direction of the engine 10, and both the timing system 15 and the transmission 21 are located at the rear end of the engine 10.

The embodiment of the utility model provides an in, set up timing system 15 in one side that is close to derailleur 21 of engine 10, then "L1" in figure 1 is referred to the length of the bulge in timing system 15, can fall into the scope of the length of the derailleur assembly 20 that engine 10 connects, therefore, the length of the bulge in this timing system 15 need not to be calculated when calculating the length of the hybrid assembly including engine 10, driving motor and derailleur 21, compare in the prior art and need calculate the axial bulge length of upper portion in the variable valve timing system when calculating the length of hybrid assembly, the length of this hybrid assembly has been reduced, the space utilization of hybrid assembly is higher, be convenient for arrange of hybrid assembly, interference with the cabin longeron when having avoided hybrid assembly to install.

Referring to fig. 2 and 4, fig. 2 shows a schematic perspective view of an engine in a hybrid power assembly provided by an embodiment of the present invention, and fig. 4 shows a schematic perspective view of an engine in a hybrid power assembly provided by an embodiment of the present invention. The engine 10 is provided with a suspension bracket 16 on the other side in the axial direction of the crankshaft, and the engine 10 further includes a cylinder head 12, the suspension bracket 16 being provided on the cylinder head 12.

Specifically, the timing system 15 is provided on one side of the engine 10 in the axial direction of the crankshaft, and the suspension bracket 16 is provided on the other side of the engine 10 in the axial direction of the crankshaft. The engine 10 includes a head cover 11, a head 12, a block 13, and an oil pan 14 that are arranged in this order in the height direction thereof. A suspension bracket 16 is fixed to the other side of the cylinder head 12 in the axial direction of the crankshaft, the suspension bracket 16 may be integrally formed with the cylinder head 12, and the suspension bracket 16 is adapted to be connected to a suspension structure of a vehicle body to mount the engine 10 on the vehicle body. In this embodiment, the suspension bracket 16 is still disposed at the front end of the engine 10, and the engine 10 and the vehicle body are ensured to be mounted on the basis of not changing the existing vehicle body suspension structure. The mounting of the front end of the engine 10 to the vehicle body can be achieved by the suspension bracket 16 provided on the other side of the cylinder head 12 in the axial direction of the crankshaft. In addition, the suspension bracket 16 and the cylinder cover 12 are integrally formed, so that the connectivity of the suspension bracket 16 and the cylinder cover 12 can be ensured, and the development and manufacturing processes of the independent suspension bracket 16 are saved.

Engine 10 also includes an intake camshaft and an exhaust camshaft, and timing system 15 includes an intake phase adjuster 152 and an exhaust phase adjuster 153, with intake phase adjuster 152 coupled to an end of the intake camshaft adjacent transmission 21, and exhaust phase adjuster 153 coupled to an end of the exhaust camshaft adjacent transmission 21.

Specifically, the axial direction of the intake camshaft and the axial direction of the exhaust camshaft both coincide with the axial direction of the crankshaft, and the intake camshaft and the exhaust camshaft are located above the crankshaft in the height direction of the engine 10. The timing system further comprises a timing chain 157, a crankshaft chain wheel, an air inlet timing chain wheel and an exhaust timing chain wheel, the timing chain 157 is wound on the crankshaft chain wheel, the air inlet timing chain wheel and the exhaust timing chain wheel, and the crankshaft can drive the air inlet camshaft and the exhaust camshaft to rotate through the arrangement of the timing chain 157, the crankshaft chain wheel, the air inlet timing chain wheel and the exhaust timing chain wheel.

The intake phase adjuster 152 may generate a phase variation of the intake camshaft with respect to the crankshaft, and the exhaust phase adjuster 153 may generate a phase variation of the exhaust camshaft with respect to the crankshaft, thereby adjusting the opening and closing time and angle of the intake and exhaust valves. In the present embodiment, the intake phase adjuster 152 and the exhaust phase adjuster 153 are respectively disposed at one end of the intake camshaft close to the transmission 21 and one end of the exhaust camshaft close to the transmission 21, so that the problem that the length of the power assembly is long due to the fact that the intake phase adjuster or the exhaust phase adjuster is disposed at one end of the intake camshaft or the exhaust camshaft away from the transmission is avoided.

The timing system 15 further includes a timing cover 151, an upper end and a lower end of the timing cover 151 are respectively connected with the cylinder head cover 11 and the oil pan 14 in a sealing manner, and a side of the timing cover 151 facing away from the transmission 21 is connected with the cylinder head 12 and the cylinder block 13 in a sealing manner.

Specifically, the height direction of the timing cover 151 coincides with the height direction of the engine 10, and the upper end and the lower end of the timing cover 151 are both ends of the timing cover 151 in the height direction thereof, respectively. The timing cover 151 is bolted to the head cover 11, the head 12, the block 13, and the oil pan 14. The sealing surface connected with the timing cover 151 on the cylinder cover 12 is a first sealing surface 121, the first sealing surface 121 is a side surface of the cylinder cover 12 close to the transmission 21, the sealing surface connected with the timing cover 151 on the cylinder body 13 is a second sealing surface 131, the second sealing surface 131 is a side surface of the cylinder body 13 close to the transmission 21, and the first sealing surface 121 and the second sealing surface 131 are both perpendicular to the length direction of the engine. The side of the timing cover 151 facing away from the transmission 21 is sealingly connected to the first sealing surface 121 and the second sealing surface 131.

The sealing surface of the oil pan 14 connected to the timing cover 151 is a third sealing surface 141, the third sealing surface 141 is located at an end of the oil pan 14 close to the cylinder block 13, the third sealing surface 141 is perpendicular to the height direction of the engine 10, and the lower end of the timing cover 151 is sealingly connected to the third sealing surface 141. The head cover 11 is provided with a seal portion having a fourth seal surface perpendicular to the height direction of the engine 10, which is sealingly connected to the upper end of the timing cover 151. The timing cover 151 is fittingly sealed with the cylinder head cover 11 and the oil pan 14 in the height direction thereof, and the timing cover 151 is fittingly sealed with the cylinder block 13 and the cylinder head 12 in the length direction of the engine 10.

The timing cover 151 may enclose a timing cavity with the head cover 11, the head 12, and the block 13 for arranging a chain timing system including a timing chain 157, a crankshaft sprocket, an intake timing sprocket, and an exhaust timing sprocket. By arranging the timing cover 151, the normal operation of the timing system 15 can be protected from external interference, and the overall sealing performance of the timing system 15 and the engine 10 is ensured.

Referring to fig. 3, fig. 3 shows a schematic perspective view of an engine in a hybrid power assembly according to an embodiment of the present invention. The timing system 15 further includes a solenoid valve detachably connected to the timing cover 151, the timing cover 151 is provided with a joint surface 154 connected to the transmission assembly 20, and the solenoid valve protrudes from a plane where the joint surface 154 is located. The solenoid valves include a first solenoid valve 155 connected to the intake phase adjuster 152 and a second solenoid valve 156 connected to the exhaust phase adjuster 153.

Specifically, solenoid valves are used to control the operation of the intake phase adjuster 152 and the exhaust phase adjuster 153, and the solenoid valves are bolted to the timing cover 151. The first solenoid valve 155 is used to control the operation of the intake phase adjuster 152, and the second solenoid valve 156 is used to control the operation of the exhaust phase adjuster 153. Through the arrangement of the intake phase adjuster 152, the first electromagnetic valve 155, the exhaust phase adjuster 153 and the second electromagnetic valve 156, the timing system is double independent VVT control, and compared with an engine adopting a single intake valve timing technology, the timing system is more efficient, energy-saving and environment-friendly.

The first solenoid valve 155 and the second solenoid valve 156 are both central solenoid valves, which are solenoid valves in which an electromagnet and a valve body of a solenoid valve are independently opened and the valve body and a phase adjuster are integrated. The central solenoid valve consumes less oil than the side solenoid valve. The first solenoid valve 155 and the second solenoid valve 156 each include a solenoid valve body and a plastic housing.

The joint surface 154 is a side surface of the timing cover 151 close to the transmission 21, the electromagnetic valve protrudes out of the plane of the joint surface 154 on the timing cover 151, the horizontal distance of the protruding part is L1, namely the first electromagnetic valve 155 protrudes out of the plane of the joint surface 154, the horizontal distance of the protruding part is L1, the second electromagnetic valve 156 protrudes out of the plane of the joint surface 154, and the horizontal distance of the protruding part is also L1. In this embodiment, L1 is 38mm, and L1 is the length of the protruding portion of the timing system, compared with the prior art, the length of the hybrid power assembly is reduced by 38mm, the space utilization rate of the hybrid power assembly is high, and the arrangement of the hybrid power assembly is convenient.

The transmission assembly 20 further includes a clutch through which the power output of the engine 10 is connected to the transmission input shaft, the clutch being located between the engine 10 and the drive motor.

Specifically, the clutch may be an electromagnetic clutch, a friction clutch or a hydraulic clutch. The power input from the engine 10 to the transmission 21 can be cut off or transmitted by the clutch; through the setting of clutch for driving motor can drive the vehicle alone, realizes pure electric mode.

The transmission assembly 20 further includes a clutch housing 22, and the engaging surface 154 of the timing cover 151 is detachably connected to the clutch housing 21.

Specifically, the clutch and the drive motor may be located within a clutch housing 22, with the clutch housing 22 located between the engine 10 and the transmission 21. The oil pan 14 is further provided with a connection surface 142 connected to the clutch housing 21, and the connection surface 142 is a side surface of the oil pan 14 close to the transmission 21. The connecting surface 142 is flush with the mating surface 154, i.e., the distance between the connecting surface 142 and the mating surface 154 is zero along the length of the engine 10.

The joint surface 154 of the timing cover 151 and the joint surface 142 of the oil pan 14 are bolted together to the clutch housing 22. The combining surface 154 of the timing cover 151 and the connecting surface 142 of the oil pan 14 are directly detachably connected with the clutch housing 22, so that the structural compactness of the hybrid power assembly is ensured.

It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not to be taken as the only limitation of the embodiments of the present invention.

In a second aspect, the present invention provides a vehicle provided with a hybrid powertrain of any of the above first aspects. And because the vehicle includes above-mentioned hybrid assembly, consequently also possesses the beneficial effect of above-mentioned hybrid assembly.

The embodiment of the utility model provides a vehicle includes each structure of the hybrid power assembly in above-mentioned arbitrary embodiment, for avoiding the repetition, here is no longer repeated.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or terminal that comprises the element.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hybrid powertrain comprising an engine (10) and a transmission assembly (20) coupled to the engine (10), the transmission assembly (20) including a drive motor and a transmission (21), the engine (10) including a crankshaft, characterized in that a power output of the engine (10) is drivingly connected to a transmission input shaft of the transmission (21), the drive motor being drivingly connected to the transmission input shaft;

a timing system is arranged on the engine (10), and the timing system (15) and the transmission (21) are positioned on the same side of the engine (10) along the axial direction of the crankshaft.

2. Hybrid powertrain according to claim 1, characterized in that the engine (10) is provided with a suspension bracket (16) on the other side in the axial direction of the crankshaft, the engine (10) further comprising a cylinder head (12), the suspension bracket (16) being provided on the cylinder head (12).

3. Hybrid powertrain according to claim 1, characterised in that the engine (10) further comprises an intake camshaft and the timing system (15) comprises an intake phase adjuster (152), the intake phase adjuster (152) being connected at an end of the intake camshaft close to the transmission (21).

4. A hybrid powertrain as claimed in claim 1, characterised in that the engine (10) further comprises an exhaust camshaft and the timing system (15) further comprises an exhaust phase adjuster (153), the exhaust phase adjuster (153) being connected at an end of the exhaust camshaft adjacent to the transmission (21).

5. Hybrid powertrain according to claim 2, characterised in that the timing system (15) further comprises a timing cover (151), the engine (10) further comprising a head cover (11), a cylinder block (13) and an oil sump (14), the timing cover (151) being sealingly connected at its upper and lower ends with the head cover (11) and the oil sump (14), respectively, the timing cover (151) being sealingly connected with the head (12) and the cylinder block (13) at the side facing away from the transmission (21).

6. Hybrid powertrain according to claim 5, characterized in that said timing system (15) further comprises a solenoid valve removably connected to said timing cover (151), said timing cover (151) being provided with a coupling surface (154) connected to said transmission assembly (20), said solenoid valve protruding out of the plane of said coupling surface (154).

7. A hybrid powertrain according to claim 6, characterised in that the solenoid valves comprise a first solenoid valve (155) connected to the intake phase adjuster (152) and a second solenoid valve (156) connected to the exhaust phase adjuster (153).

8. Hybrid powertrain according to claim 6 or 7, characterized in that the transmission assembly (20) further comprises a clutch by means of which the power output of the engine (10) is connected to the transmission input shaft, the clutch being located between the engine (10) and the drive motor.

9. Hybrid powertrain according to claim 8, characterized in that the transmission assembly (20) further comprises a clutch housing (22), the coupling surface (154) of the timing cover (151) being detachably connected to the clutch housing (22).

10. A vehicle comprising a hybrid powertrain according to any one of claims 1 to 9.