A multi-working-mode parallel hybrid system

Abstract

The application relates to a multi-working-mode parallel hybrid power system, wherein a second clutch device (13) is arranged in the motor variable speed module, a third clutch device (14) is arranged between the output end of the engine variable speed module and the output end of the motor input gear pair, and the switching of the second clutch device (13) and the third clutch device (14) can realize the switching of different working modes of the hybrid power system; the motor and the engine can be independently shifted, and power transmission is continuously uninterrupted during the shifting process; the pure electric driving capacity is improved, and the starting torque is increased; the engine and the motor are independently driven in the engine and motor independent driving modes, the driving efficiency is higher under high-speed working conditions; power complementation is realized during the shifting process of the motor and the engine, the shifting time requirement is low, and the shifting reliability is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hybrid power systems, and in particular to a multi-working-mode parallel hybrid power system. BACKGROUND

[0002] The parallel architecture hybrid power system can be divided into five architecture types, P0-P4, according to the arrangement position of the motor in the system, among which P2 and P3 architecture types are the most common. The P2 architecture type refers to the motor being located between the clutch and the gear box; and the P3 architecture type refers to the motor being connected with the driven shaft of the transmission.

[0003] In the hybrid power system of the P2 architecture type, the engine and the motor jointly output power through the transmission, and the engine and the motor need to be synchronized and coordinated in speed during the gear shifting process, so that the gear shifting process is complex and the smoothness and reliability are poor.

[0004] In the hybrid power system of the P3 architecture type, the motor is located at the rear end of the transmission and is used to directly drive the rear axle. Since the motor power does not pass through the transmission, the output capacity of the motor is limited, and the pure electric driving capacity is weak, especially the pure electric starting torque is small, which greatly affects the driving experience.

[0005] Therefore, there is an urgent need to provide a new parallel hybrid power system to solve the defects and deficiencies in the prior art. SUMMARY

[0006] In order to solve the defects and deficiencies in the prior art, the present application provides a multi-working-mode parallel hybrid power system.

[0007] The technical scheme provided by the present application is as follows:

[0008] A multi-working-mode parallel hybrid power system, the hybrid power system comprising:

[0009] an engine, an output shaft of the engine being connected with an engine transmission module through a first clutch device, and an output end of the engine transmission module being connected with an output flange through an output shaft;

[0010] a motor, an output shaft of the motor being connected with a motor transmission module through a motor input gear pair, and an output end of the motor transmission module being connected with the output flange through the output shaft;

[0011] the motor transmission module being located at the output end of the engine transmission module;

[0012] a second clutch device being arranged in the motor transmission module, and a third clutch device being arranged between the output end of the engine transmission module and the output end of the motor input gear pair, and the switching of different working modes of the hybrid power system being realized through the on-off switching of the first clutch device, the second clutch device and the third clutch device.

[0013] As a further preferred embodiment of the present application, the engine transmission module comprises, in sequence along the power output direction of the engine, an engine five-gear gear pair, an engine four-gear gear pair, an engine three-gear gear pair, an engine two-gear gear pair, an engine one-gear gear pair, an engine reverse-gear gear pair, and an engine intermediate gear pair, a fourth clutch device is arranged between the engine one-gear gear pair and the reverse-gear gear pair, a fifth clutch device is arranged between the engine two-gear gear pair and the engine three-gear gear pair, and a sixth clutch device is arranged between the engine four-gear gear pair and the engine five-gear gear pair.

[0014] As a further preferred embodiment of the present application, the engine transmission module comprises a selectively connectable engine input shaft and output shaft, and an engine first intermediate shaft and an engine second intermediate shaft arranged in parallel with the engine input shaft and the output shaft;

[0015] The engine five-gear gear pair comprises an engine five-gear input gear fixedly connected with the engine input shaft, an engine five-gear first output gear fixedly connected with the engine first intermediate shaft, and an engine five-gear second output gear fixedly connected with the engine second intermediate shaft, the engine five-gear input gear being in corresponding engagement with the engine five-gear first output gear and the engine five-gear second output gear;

[0016] The engine four-gear gear pair comprises an engine four-gear output gear sleeved on the output shaft, an engine four-gear first input gear fixedly connected with the engine first intermediate shaft, and an engine four-gear second input gear fixedly connected with the engine second intermediate shaft, the engine four-gear output gear being in corresponding engagement with the engine four-gear first input gear and the engine four-gear second input gear;

[0017] The engine three-gear gear pair comprises an engine three-gear output gear sleeved on the output shaft, an engine three-gear first input gear fixedly connected with the engine first intermediate shaft, and an engine three-gear second input gear fixedly connected with the engine second intermediate shaft, the engine three-gear output gear being in corresponding engagement with the engine three-gear first input gear and the engine three-gear second input gear;

[0018] The engine two-gear gear pair comprises an engine two-gear output gear sleeved on the output shaft, an engine two-gear first input gear fixedly connected with the engine first intermediate shaft, and an engine two-gear second input gear fixedly connected with the engine second intermediate shaft, the engine two-gear output gear being in corresponding engagement with the engine two-gear first input gear and the engine two-gear second input gear;

[0019] The engine first gear pair comprises an engine first gear output gear sleeved on the output shaft, an engine first gear first input gear fixedly connected with the engine first intermediate shaft, and an engine first gear second input gear fixedly connected with the engine second intermediate shaft, the engine first gear output gear is in mesh with the engine first gear first input gear and the engine first gear second input gear;

[0020] The engine reverse gear pair comprises a reverse gear output gear sleeved on the output shaft, a reverse gear first input gear fixedly connected with the engine first intermediate shaft, and a reverse gear second input gear fixedly connected with the engine second intermediate shaft, a reverse gear first intermediate gear is arranged between the reverse gear output gear and the reverse gear first input gear and is in mesh with both of them, and a reverse gear second intermediate gear is arranged between the reverse gear output gear and the reverse gear second input gear and is in mesh with both of them;

[0021] The engine intermediate gear pair comprises an engine intermediate output gear sleeved on the output shaft, an engine intermediate first input gear fixedly connected with the engine first intermediate shaft, and an engine intermediate second input gear fixedly connected with the engine second intermediate shaft, the engine intermediate output gear is in mesh with the engine intermediate first input gear and the engine intermediate second input gear.

[0022] As a further preferred embodiment of the present application, the fourth clutch device is arranged between the engine first gear output gear and the reverse gear output gear to selectively engage or be in neutral position with the output shaft and the engine first gear output gear and the reverse gear output gear on both sides;

[0023] The fifth clutch device is arranged between the engine third gear output gear and the engine second gear output gear to selectively engage or be in neutral position with the output shaft and the engine third gear output gear and the engine second gear output gear on both sides;

[0024] The sixth clutch device is arranged between the engine fifth gear output gear and the engine fourth gear output gear to selectively engage or be in neutral position with the output shaft and the engine fifth gear output gear and the engine fourth gear output gear on both sides.

[0025] As a further preferred embodiment of the present application, the motor input gear pair comprises a first input gear pair and a second input gear pair connected with each other; wherein,

[0026] The first input gear pair comprises a first input driving gear fixedly connected with the output shaft of the motor, and a first input driven gear fixedly connected with an outer shaft, the first input driving gear is in direct or indirect mesh with the first input driven gear, and the outer shaft is sleeved on the outer periphery of the output shaft;

[0027] The second input gear pair comprises a second input driving gear fixedly connected with the outer shaft, a second input first driven gear fixedly connected with the motor first intermediate shaft, and a second input second driven gear fixedly connected with the motor second intermediate shaft, and the second input driving gear is in meshing correspondence with the second input first driven gear and the second input second driven gear;

[0028] The motor first intermediate shaft and the motor second intermediate shaft are arranged in parallel on both sides of the output shaft.

[0029] As a further preferred embodiment of the present application, the motor gear shift module comprises a motor first gear pair and a motor second gear pair arranged in sequence along the power output direction of the motor, and the second clutch device is arranged between the motor first gear pair and the motor second gear pair.

[0030] As a further preferred embodiment of the present application, the motor first gear pair comprises a motor first gear output gear sleeved on the output shaft, a motor first gear first input gear fixed on the motor first intermediate shaft, and a motor first gear second input gear fixed on the motor second intermediate shaft, and the motor first gear output gear is in meshing correspondence with the motor first gear first input gear and the motor first gear second input gear.

[0031] The motor second gear pair comprises a motor second gear output gear sleeved on the output shaft, a motor second gear first input gear fixed on the motor first intermediate shaft, and a motor second gear second input gear fixed on the motor second intermediate shaft, and the motor second gear output gear is in meshing correspondence with the motor second gear first input gear and the motor second gear second input gear.

[0032] As a further preferred embodiment of the present application, the second clutch device is arranged between the motor first gear output gear and the motor second gear output gear to selectively engage or position in the neutral position the output shaft and the motor first gear output gear and the motor second gear output gear on both sides.

[0033] As a further preferred embodiment of the present application, the third clutch device is arranged between the first input driven gear and the engine intermediate output gear to selectively engage the outer shaft and the engine intermediate output gear on one side.

[0034] As a further preferred embodiment of the present application, the working modes realized by the hybrid power system comprise:

[0035] 1) Pure engine driving mode: the third clutch device is disconnected, and the second clutch device is positioned in the neutral position, at this time the hybrid power system is in the pure engine driving mode;

[0036] Engine reverse mode: the fourth clutch device is engaged on the right, and the fifth and sixth clutch devices are positioned in the neutral position.

[0037] Engine one-gear mode: the fourth clutch device is combined to the left, and the fifth and sixth clutch devices are located in the intermediate neutral position;

[0038] Engine two-gear mode: the fifth clutch device is combined to the right, and the fourth and sixth clutch devices are located in the intermediate neutral position;

[0039] Engine three-gear mode: the fifth clutch device is combined to the left, and the fourth and sixth clutch devices are located in the intermediate neutral position;

[0040] Engine four-gear mode: the sixth clutch device is combined to the right, and the fourth and fifth clutch devices are located in the intermediate neutral position;

[0041] Engine five-gear mode: the sixth clutch device is combined to the left, and the fourth and fifth clutch devices are located in the intermediate neutral position;

[0042] 2) Pure motor drive mode: the third clutch device is disconnected, and the first clutch device is disconnected, at this time, the hybrid power system is in pure motor drive mode;

[0043] Pure electric one-gear mode: the second clutch device is combined to the left;

[0044] Pure electric two-gear mode: the second clutch device is combined to the right;

[0045] 3) Hybrid power drive mode P2: the third clutch device is combined, the second clutch device is located in the intermediate neutral position, and the drive motor and the engine jointly realize power output;

[0046] 4) Hybrid power drive mode P3: the third clutch device is disconnected, and the second clutch device is combined, at this time, the overall gear shifting power is uninterrupted.

[0047] The beneficial effects obtained by the present application relative to the prior art are:

[0048] 1) The present application provides a multi-working-mode parallel hybrid power system, the motor and the engine can be independently shifted, and the power transmission is continuously uninterrupted during the shifting process.

[0049] 2) The present application provides a multi-working-mode parallel hybrid power system, the motor power is transmitted to the rear axle through the gearbox, relative to the P3 architecture type hybrid power system in the prior art, the motor is located at the rear end of the gearbox to directly drive the rear axle, the pure electric drive capability is improved, and the starting torque is increased;

[0050] 3) The present application provides a multi-working-mode parallel hybrid power system, respectively provided with an engine and a motor independent drive mode, in a high-speed working condition, the driving efficiency is higher;

[0051] 4) The application provides a multi-working mode parallel hybrid system, power complementation is realized in the shifting process of the motor and the engine, the shifting time requirement is low, and the shifting reliability is high. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 It is a structural schematic diagram of the application. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0054] In the description of the application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0055] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0056] [First embodiment]

[0057] As Figure 1 The first embodiment of the application provides a multi-working mode parallel hybrid system, and the hybrid system comprises:

[0058] The output shaft of the engine 1 is connected to the engine shifting module through the first clutch device 2, and the output end of the engine shifting module is connected to the output flange 12 through the output shaft 18.

[0059] As Figure 1As shown, the engine variable speed module comprises the engine input shaft 19 and the output shaft 18 which are selectively connected, and the engine first intermediate shaft 20 and the engine second intermediate shaft 21 which are arranged in parallel with the engine input shaft 19 and the output shaft 18.

[0060] The engine variable speed module comprises the engine five-gear pair 3, the engine four-gear pair 4, the engine three-gear pair 5, the engine two-gear pair 6, the engine one-gear pair 7, the engine reverse-gear pair 8, and the engine intermediate-gear pair S which are arranged in sequence along the power output direction of the engine 1.

[0061] The engine five-gear pair 3 comprises the engine five-gear input gear 31 which is fixedly connected with the engine input shaft 19, the engine five-gear first output gear 32 which is fixedly connected with the engine first intermediate shaft 20, and the engine five-gear second output gear 33 which is fixedly connected with the engine second intermediate shaft 21, and the engine five-gear input gear 31 is engaged with the engine five-gear first output gear 32 and the engine five-gear second output gear 33.

[0062] The engine four-gear pair 4 comprises the engine four-gear output gear 41 which is sleeved on the output shaft 18, the engine four-gear first input gear 42 which is fixedly connected with the engine first intermediate shaft 20, and the engine four-gear second input gear 43 which is fixedly connected with the engine second intermediate shaft 21, and the engine four-gear output gear 41 is engaged with the engine four-gear first input gear 42 and the engine four-gear second input gear 43.

[0063] The engine three-gear pair 5 comprises the engine three-gear output gear 51 which is sleeved on the output shaft 18, the engine three-gear first input gear 52 which is fixedly connected with the engine first intermediate shaft 20, and the engine three-gear second input gear 53 which is fixedly connected with the engine second intermediate shaft 21, and the engine three-gear output gear 51 is engaged with the engine three-gear first input gear 52 and the engine three-gear second input gear 53.

[0064] The engine two-gear pair 6 comprises the engine two-gear output gear 61 which is sleeved on the output shaft 18, the engine two-gear first input gear 62 which is fixedly connected with the engine first intermediate shaft 20, and the engine two-gear second input gear 63 which is fixedly connected with the engine second intermediate shaft 21, and the engine two-gear output gear 61 is engaged with the engine two-gear first input gear 62 and the engine two-gear second input gear 63.

[0065] The engine first gear pair 7 includes an engine first gear output gear 71 sleeved on the output shaft 18, an engine first gear first input gear 72 fixedly connected to the engine first intermediate shaft 20, and an engine first gear second input gear 73 fixedly connected to the engine second intermediate shaft 21. The engine first gear output gear 71 meshes with the engine first gear first input gear 72 and the engine first gear second input gear 73.

[0066] The engine reverse gear pair 8 includes a reverse output gear 81 sleeved on the output shaft 18, a reverse first input gear 82 fixedly connected to the engine first intermediate shaft 20, and a reverse second input gear 83 fixedly connected to the engine second intermediate shaft 21. A reverse first intermediate gear 84 is provided between the reverse output gear 81 and the reverse first input gear 82, and a reverse second intermediate gear 85 is provided between the reverse output gear 81 and the reverse second input gear 83, and both of them mesh simultaneously.

[0067] The engine intermediate gear pair S includes an engine intermediate output gear S1 sleeved on the output shaft 18, an engine intermediate first input gear S2 fixedly connected to the engine first intermediate shaft 20, and an engine intermediate second input gear S3 fixedly connected to the engine second intermediate shaft 21. The engine intermediate output gear S1 meshes with the engine intermediate first input gear S2 and the engine intermediate second input gear S3 respectively.

[0068] like Figure 1 As shown, a fourth clutch device 15 is provided between the first gear pair 7 and the reverse gear pair 8 of the engine. The fourth clutch device 15 is provided between the first gear output gear 71 and the reverse gear output gear 81 of the engine to selectively engage or be in the neutral position with the output shaft 18 and the first gear output gear 71 and the reverse gear output gear 81 on both sides of the engine.

[0069] A fifth clutch device 16 is provided between the second gear pair 6 and the third gear pair 5 of the engine. The fifth clutch device 16 is located between the third gear output gear 51 and the second gear output gear 61 of the engine to selectively engage the output shaft 18 with the third gear output gear 51 and the second gear output gear 61 on both sides or to be in the neutral position.

[0070] A sixth clutch device 17 is provided between the fourth gear pair 4 and the fifth gear pair 3 of the engine; the sixth clutch device 17 is provided between the fifth output gear 31 and the fourth output gear 41 of the engine to selectively engage the output shaft 18 with the fifth output gear 31 and the fourth output gear 41 of the engine on both sides or to be in the neutral position.

[0071] like Figure 1As shown, the hybrid system further comprises a motor 11, an output shaft of the motor 11 is connected to a motor transmission module through a motor input gear pair, an output end of the motor transmission module is connected to an output flange 12 through an output shaft 18; the motor transmission module is located at the output end of the engine transmission module.

[0072] The motor input gear pair comprises a first input gear pair I1 and a second input gear pair I2 which are connected to each other.

[0073] The first input gear pair I1 comprises a first input driving gear I11 fixedly connected to the output shaft of the motor 11, and a first input driven gear I12 fixedly connected to an outer shaft 22, the first input driving gear I11 is directly or indirectly engaged with the first input driven gear I12, and the outer shaft 22 is sleeved on the outer periphery of the output shaft 18.

[0074] The second input gear pair I2 comprises a second input driving gear I21 fixedly connected to the outer shaft 22, and a second input first driven gear I22 fixedly connected to a motor first intermediate shaft 23 and a second input second driven gear I23 fixedly connected to a motor second intermediate shaft 24, the second input driving gear I21 is engaged with the second input first driven gear I22 and the second input second driven gear I23 correspondingly; the motor first intermediate shaft 23 and the motor second intermediate shaft 24 are arranged in parallel on both sides of the output shaft 18.

[0075] As shown, Figure 1 The motor transmission module comprises a motor first gear pair 9 and a motor second gear pair 10 arranged in sequence along the power output direction of the motor 11.

[0076] The motor first gear pair 9 comprises a motor first gear output gear 91 sleeved on the output shaft 18, a motor first gear first input gear 92 fixed on the motor first intermediate shaft 23, and a motor first gear second input gear 93 fixed on the motor second intermediate shaft 24, the motor first gear output gear 91 is engaged with the motor first gear first input gear 92 and the motor first gear second input gear 93 correspondingly.

[0077] The motor second gear pair 10 comprises a motor second gear output gear 101 sleeved on the output shaft 18, a motor second gear first input gear 102 fixed on the motor first intermediate shaft 23, and a motor second gear second input gear 103 fixed on the motor second intermediate shaft 24, the motor second gear output gear 101 is engaged with the motor second gear first input gear 102 and the motor second gear second input gear 103 correspondingly.

[0078] In this embodiment, the motor transmission module further comprises a second clutch device 13, the second clutch device 13 is arranged between the motor first gear pair 9 and the motor second gear pair 10; as Figure 1As shown in this embodiment, the second clutch device 13 is specifically disposed between the first gear output gear 91 and the second gear output gear 101 of the motor to selectively engage the output shaft 18 with the first gear output gear 91 and the second gear output gear 101 of the motor on both sides or to be in the middle position.

[0079] like Figure 1 As shown, the hybrid power system also includes a third clutch device 14, which is disposed between the first input driven gear I12 and the engine intermediate output gear S1 to selectively engage the outer shaft 22 with the engine intermediate output gear S1 on one side.

[0080] In this embodiment, the switching of different operating modes of the hybrid power system is achieved by switching the first clutch device 2, the second clutch device 13 and the third clutch device 14 on and off.

[0081] When the third clutch 14 is disengaged and the second clutch 13 is in the neutral position, the hybrid system is in pure engine drive mode.

[0082] When the third clutch 14 is disengaged and the first clutch 2 is disengaged, the hybrid power system is in pure electric drive mode.

[0083] When the third clutch 14 is engaged and the second clutch 13 is in the neutral position, the hybrid system is in hybrid drive mode P2, at which time the drive motor and the engine work together to achieve power output.

[0084] When the third clutch device 14 is disengaged and the second clutch device 13 is engaged, the hybrid power system is in hybrid drive mode P3, at which time the overall shifting power is not interrupted.

[0085] In this embodiment, the operating modes implemented by the hybrid power system include:

[0086] 1) Pure engine drive mode: The first clutch device 2 is closed, the third clutch device 14 is open, and the second clutch device 13 is in the neutral position. At this time, the drive motor is disconnected and does not participate in vehicle drive. The power of the hybrid system is provided solely by the engine 1.

[0087] Engine reverse mode: The fourth clutch device 15 is engaged on the right, and the fifth and sixth clutch devices 16 and 17 are in the neutral position; at this time, the power output of engine 1 is output to the output flange 12 through the reverse gear pair 8;

[0088] Engine first gear mode: the fourth clutch device 15 is engaged on the left, and the fifth and sixth clutch devices 16 and 17 are in the middle neutral position; at this time, the power output of engine 1 is output to the output flange 12 through the engine first gear pair 7.

[0089] Engine 2nd gear mode: the fifth clutch 16 is engaged to the right, the fourth and sixth clutches 15, 17 are in the neutral position; at this time, the power output by the engine 1 is output to the output flange 12 through the engine 2nd gear pair 6;

[0090] Engine 3rd gear mode: the fifth clutch 16 is engaged to the left, the fourth and sixth clutches 15, 17 are in the neutral position; at this time, the power output by the engine 1 is output to the output flange 12 through the engine 3rd gear pair 5;

[0091] Engine 4th gear mode: the sixth clutch 17 is engaged to the right, the fourth and fifth clutches 15, 16 are in the neutral position; at this time, the power output by the engine 1 is output to the output flange 12 through the engine 2nd gear pair 4;

[0092] Engine 5th gear mode: the sixth clutch 17 is engaged to the left, the fourth and fifth clutches 15, 16 are in the neutral position; at this time, the power output by the engine 1 is output to the output flange 12 through the engine 1st gear pair 3;

[0093] According to the working condition requirements of the engine drive, the internal part of the engine speed change module can match any number of gears to meet the requirements of vehicle driving. The number of gears in this embodiment is only one of the specific implementation ways.

[0094] 2) Pure electric drive mode: the third clutch 14 is disconnected, the engine is stopped, and the first clutch 2 is disconnected; at this time, the hybrid power system is in pure electric drive mode, and the power of the hybrid power system is provided by the motor 11 alone;

[0095] Pure electric 1st gear mode: the second clutch 13 is engaged to the left; at this time, the output power of the motor 11 is output to the output flange 12 through the motor 1st gear pair 9;

[0096] Pure electric 2nd gear mode: the second clutch 13 is engaged to the right; at this time, the output power of the motor 11 is output to the output flange 12 through the motor 2nd gear pair 10;

[0097] According to the working condition requirements of the motor drive, the internal part of the motor speed change module can also match any number of gears to meet the requirements of vehicle driving. The number of gears in this embodiment is only one of the specific implementation ways.

[0098] 3) Hybrid drive mode P2: the third clutch 14 is engaged, and the second clutch 13 is in the neutral position; at this time, the motor 11 and the engine 1 jointly realize power output; in this working mode, the motor 11 plays a role in adjusting the working condition of the engine, realizing system oil saving.

[0099] 4) Hybrid driving mode P3: the third clutch device 14 is disconnected, the second clutch device 13 is connected, at this time the engine 1 output and the motor 11 output are independent of each other, the shifting process is also independent of each other, the motor 11 output can be realized when the engine 1 shifts, the engine 1 output can be realized when the motor 11 shifts, thereby realizing the goal of uninterrupted overall shifting power.

[0100] As a preferred embodiment of the present embodiment, in the hybrid power system, the engine shifting module and the motor shifting module can be designed separately and then assembled together, or integrated in the same housing, which does not affect the overall performance of the shifting module.

[0101] As another preferred embodiment of the present embodiment, the motor 11 can adopt single motor power output, such as Figure 1 As shown in the above, multiple motors can also be used to output power to the motor shifting module together to achieve the purpose of higher power input.

[0102] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in any aspect, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A multi-working mode parallel hybrid system, comprising: an engine (1), an output shaft of the engine (1) being connected to an engine transmission module through a first clutch device (2), an output end of the engine transmission module being connected to an output flange (12) through an output shaft (18) ; a motor (11), an output shaft of the motor (11) being connected to a motor transmission module through a motor input gear pair, an output end of the motor transmission module being connected to the output flange (12) through the output shaft (18) ; the motor transmission module being located at the output end of the engine transmission module; characterized in that: a second clutch device (13) is arranged inside the motor transmission module, a third clutch device (14) is arranged between the output end of the engine transmission module and the output end of the motor input gear pair, and the switching of the first clutch device (2), the second clutch device (13) and the third clutch device (14) is used to switch the different working modes of the hybrid system; the engine transmission module comprises an engine five-gear gear pair (3), an engine four-gear gear pair (4), an engine three-gear gear pair (5), an engine two-gear gear pair (6), an engine one-gear gear pair (7), an engine reverse-gear gear pair (8) and an engine intermediate gear pair (S) arranged in sequence along the power output direction of the engine (1), a fourth clutch device (15) is arranged between the engine one-gear gear pair (7) and the reverse-gear gear pair (8), a fifth clutch device (16) is arranged between the engine two-gear gear pair (6) and the engine three-gear gear pair (5), and a sixth clutch device (17) is arranged between the engine four-gear gear pair (4) and the engine five-gear gear pair (3) ; the motor input gear pair comprises a first input gear pair (I1) and a second input gear pair (I2) connected to each other; wherein the first input gear pair (I1) comprises a first input driving gear (I11) fixedly connected to the output shaft of the motor (11), and a first input driven gear (I12) fixedly connected to an outer shaft (22), the first input driving gear (I11) directly or indirectly engaging with the first input driven gear (I12), and the outer shaft (22) being sleeved on the outer periphery of the output shaft (18) ; the second input gear pair (I2) comprises a second input driving gear (I21) fixedly connected to the outer shaft (22), a second input first driven gear (I22) fixedly connected to a motor first intermediate shaft (23) and a second input second driven gear (I23) fixedly connected to a motor second intermediate shaft (24), the second input driving gear (I21) engaging with the second input first driven gear (I22) and the second input second driven gear (I23) correspondingly; the motor first intermediate shaft (23) and the motor second intermediate shaft (24) are arranged in parallel on both sides of the output shaft (18). The motor variable speed module comprises a motor first gear pair (9) and a motor second gear pair (10) arranged in sequence along the power output direction of the motor (11), and the second clutch device (13) is arranged between the motor first gear pair (9) and the motor second gear pair (10); The motor first gear pair (9) comprises a motor first output gear (91) sleeved on the output shaft (18), a motor first input gear (92) fixed on the motor first intermediate shaft (23), and a motor second input gear (93) fixed on the motor second intermediate shaft (24), and the motor first output gear (91) is engaged with the motor first input gear (92) and the motor second input gear (93) correspondingly; The motor second gear pair (10) comprises a motor second output gear (101) sleeved on the output shaft (18), a motor second input gear (102) fixed on the motor first intermediate shaft (23), and a motor second input gear (103) fixed on the motor second intermediate shaft (24), and the motor second output gear (101) is engaged with the motor second input gear (102) and the motor second input gear (103) correspondingly; The second clutch device (13) is arranged between the motor first output gear (91) and the motor second output gear (101) to selectively engage or position the output shaft (18) with the motor first output gear (91) and the motor second output gear (101) on both sides; The third clutch device (14) is arranged between the first input driven gear (I12) and the engine intermediate output gear (S1) to selectively engage the outer shaft (22) with the engine intermediate output gear (S1) on one side.

2. A multiple operating mode parallel hybrid system according to claim 1, characterized in that: The engine variable speed module comprises an engine input shaft (19) and an output shaft (18) which can be selectively connected, and an engine first intermediate shaft (20) and an engine second intermediate shaft (21) arranged in parallel with the engine input shaft (19) and the output shaft (18); The engine five-gear pair (3) comprises an engine five-gear input gear (31) fixedly connected with the engine input shaft (19), an engine five-gear first output gear (32) fixedly connected with the engine first intermediate shaft (20), and an engine five-gear second output gear (33) fixedly connected with the engine second intermediate shaft (21), and the engine five-gear input gear (31) is engaged with the engine five-gear first output gear (32) and the engine five-gear second output gear (33) correspondingly; The engine four-gear pair (4) comprises an engine four-gear output gear (41) sleeved on the output shaft (18), an engine four-gear first input gear (42) fixedly connected with the engine first intermediate shaft (20), and an engine four-gear second input gear (43) fixedly connected with the engine second intermediate shaft (21), and the engine four-gear output gear (41) is engaged with the engine four-gear first input gear (42) and the engine four-gear second input gear (43) correspondingly; The engine three-gear gear pair (5) comprises an engine three-gear output gear (51) sleeved on the output shaft (18), an engine three-gear first input gear (52) fixedly connected with the engine first intermediate shaft (20), and an engine three-gear second input gear (53) fixedly connected with the engine second intermediate shaft (21), the engine three-gear output gear (51) is correspondingly engaged with the engine three-gear first input gear (52) and the engine three-gear second input gear (53); The engine two-gear gear pair (6) comprises an engine two-gear output gear (61) sleeved on the output shaft (18), an engine two-gear first input gear (62) fixedly connected with the engine first intermediate shaft (20), and an engine two-gear second input gear (63) fixedly connected with the engine second intermediate shaft (21), the engine two-gear output gear (61) is correspondingly engaged with the engine two-gear first input gear (62) and the engine two-gear second input gear (63); The engine one-gear gear pair (7) comprises an engine one-gear output gear (71) sleeved on the output shaft (18), an engine one-gear first input gear (72) fixedly connected with the engine first intermediate shaft (20), and an engine one-gear second input gear (73) fixedly connected with the engine second intermediate shaft (21), the engine one-gear output gear (71) is correspondingly engaged with the engine one-gear first input gear (72) and the engine one-gear second input gear (73); The engine reverse-gear gear pair (8) comprises a reverse-gear output gear (81) sleeved on the output shaft (18), a reverse-gear first input gear (82) fixedly connected with the engine first intermediate shaft (20), and a reverse-gear second input gear (83) fixedly connected with the engine second intermediate shaft (21), the reverse-gear output gear (81) and the reverse-gear first input gear (82) are provided with a reverse-gear first intermediate gear (84) engaged with them at the same time, the reverse-gear output gear (81) and the reverse-gear second input gear (83) are provided with a reverse-gear second intermediate gear (85) engaged with them at the same time; The engine intermediate gear pair (S) comprises an engine intermediate output gear (S1) sleeved on the output shaft (18), an engine intermediate first input gear (S2) fixedly connected with the engine first intermediate shaft (20), and an engine intermediate second input gear (S3) fixedly connected with the engine second intermediate shaft (21), the engine intermediate output gear (S1) is correspondingly engaged with the engine intermediate first input gear (S2) and the engine intermediate second input gear (S3) respectively.

3. The multi-working-mode parallel hybrid system according to claim 2, characterized in that: The fourth clutch device (15) is arranged between the engine one-gear output gear (71) and the reverse-gear output gear (81) to selectively engage or position the output shaft (18) with the engine one-gear output gear (71) and the reverse-gear output gear (81) on both sides. The fifth clutch device (16) is arranged between the engine three-gear output gear (51) and the engine two-gear output gear (61) to selectively engage or position in the neutral position the output shaft (18) and the engine three-gear output gear (51) and the engine two-gear output gear (61) on both sides. The sixth clutch device (17) is arranged between the engine five-gear input gear (31) and the engine four-gear output gear (41) to selectively engage or position in the neutral position the output shaft (18) and the engine five-gear input gear (31) and the engine four-gear output gear (41) on both sides.

4. The multiple operating mode parallel hybrid system of claim 1, wherein: The working modes realized by the hybrid system include: 1) Pure engine driving mode: the third clutch device (14) is disconnected, and the second clutch device (13) is positioned in the neutral position, at which time the hybrid system is in the pure engine driving mode; Engine reverse gear mode: the fourth clutch device (15) is combined on the right, and the fifth and sixth clutch devices (16, 17) are positioned in the neutral position; Engine one-gear mode: the fourth clutch device (15) is combined on the left, and the fifth and sixth clutch devices (16, 17) are positioned in the neutral position; Engine two-gear mode: the fifth clutch device (16) is combined on the right, and the fourth and sixth clutch devices (15, 17) are positioned in the neutral position; Engine three-gear mode: the fifth clutch device (16) is combined on the left, and the fourth and sixth clutch devices (15, 17) are positioned in the neutral position; Engine four-gear mode: the sixth clutch device (17) is combined on the right, and the fourth and fifth clutch devices (15, 16) are positioned in the neutral position; Engine five-gear mode: the sixth clutch device (17) is combined on the left, and the fourth and fifth clutch devices (15, 16) are positioned in the neutral position; 2) Pure electric machine driving mode: the third clutch device (14) is disconnected, and the first clutch device (2) is disconnected, at which time the hybrid system is in the pure electric machine driving mode; Pure electric one-gear mode: the second clutch device (13) is combined on the left; Pure electric two-gear mode: the second clutch device (13) is combined on the right; 3) Hybrid driving mode P2: the third clutch device (14) is combined, and the second clutch device (13) is positioned in the neutral position, the driving electric machine and the engine jointly realize power output; 4) Hybrid driving mode P3: the third clutch device (14) is disconnected, and the second clutch device (13) is combined, at which time the overall gear shifting power is uninterrupted.

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