CN114801689B - A hybrid power system - Google Patents

Abstract

The invention relates to a hybrid power system, which can realize an engine working mode of up to 9 gears by adopting a hybrid power system of combining an engine with a single motor and combining an engine with multiple motors, can realize high-gear high-speed and meet the requirements of low-gear high load, and has small speed ratio step, so that the engine can continuously work in a high-efficiency area. The vehicle can still realize the escape and heavy-load operation under the condition that the vehicle is in low electric quantity or the electric quantity is 0; the power generation function of parking more efficiently can be realized, namely, the engine is stabilized in the optimal high-efficiency area when the vehicle is parked, the motor is driven to generate power through a proper transmission ratio, and meanwhile, the motor can be just stabilized in the optimal high-efficiency area.

Description

A hybrid power system

Technical Field

The present invention relates to the technical field of automobile hybrid power transmission systems, and in particular to a hybrid power system.

Background Art

Hybrid systems in the prior art often use a technical solution of inserting a single motor system between the engine and the gearbox. On the one hand, the motor needs to be a low-speed large motor, which is large in size and weight. This solution makes the installation length of the entire hybrid system very long; on the other hand, the number of gearbox gears is small. Due to the complex operating conditions of the vehicle, the small number of gearbox gears means a large speed ratio difference. The speed ratio fluctuation range of the engine before and after the gear shift is large, and the engine cannot operate stably in the high-efficiency area, and cannot achieve a good energy-saving and emission reduction effect; and the large speed ratio difference will also make gear shifting more difficult, and even fail to meet the gear shifting requirements. At the same time, the power transmission is interrupted during the gear shifting process, affecting the driving comfort and even failing to meet the requirements of certain working conditions.

Summary of the invention

In order to solve the defects and shortcomings in the prior art, the present invention provides a hybrid power system.

The specific scheme provided by the present invention is:

A hybrid power system, characterized in that the hybrid power system comprises:

An engine, wherein the output shaft of the engine is connected to the engine input shaft via a main clutch; the engine input shaft is connected to the first intermediate shaft of the engine and the second intermediate shaft of the engine via a first gear set; the first intermediate shaft of the engine and the second intermediate shaft of the engine can be selectively connected to the system output shaft via a second, third and fourth gear sets respectively;

A motor, wherein the motor has a motor output shaft; the motor output shaft is connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor through a fifth gear set; the first intermediate shaft of the motor and the second intermediate shaft of the motor can be selectively connected to a system output shaft through a sixth gear set and a seventh gear set respectively;

A first clutch, the first clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets on both sides;

A second clutch, the second clutch is located on the system output shaft and can selectively mesh or not mesh with the gear corresponding to the seventh gear set on one side;

A third clutch, the third clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the third and fourth gear sets on both sides;

A fourth clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the first and second gear sets on both sides.

Furthermore, the present invention also provides a hybrid power system, characterized in that the hybrid power system comprises:

An engine, wherein the output shaft of the engine is connected to the engine input shaft via a main clutch; the engine input shaft is connected to the first intermediate shaft of the engine and the second intermediate shaft of the engine via a first gear set; the first intermediate shaft of the engine and the second intermediate shaft of the engine can be selectively connected to the system output shaft via a second, third and fourth gear sets respectively;

A first motor, wherein the first motor has a first motor output shaft, the first motor output shaft is connected to a first intermediate shaft of the motor through a fifth gear set, and the first intermediate shaft of the motor can be selectively connected to a system output shaft through a sixth gear set and a seventh gear set respectively;

A second motor, the second motor having a second motor output shaft, the second motor output shaft being connected to the motor second intermediate shaft via a fifth second gear set, the motor second intermediate shaft being selectively connected to the system output shaft via a sixth gear set and a seventh gear set respectively;

A first clutch, the first clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets on both sides;

A second clutch, the second clutch is located on the system output shaft and can selectively mesh or not mesh with the gear corresponding to the seventh gear set on one side;

A third clutch, the third clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the third and fourth gear sets on both sides;

A fourth clutch, the fourth clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the first and second gear sets on both sides;

The engine input shaft is coaxially arranged with the system output shaft.

Furthermore, the present invention also provides a hybrid power system, characterized in that the hybrid power system comprises:

An engine, wherein the output shaft of the engine is connected to the engine input shaft via a main clutch; the engine input shaft is connected to the first intermediate shaft of the engine and the second intermediate shaft of the engine via a first gear set; the first intermediate shaft of the engine and the second intermediate shaft of the engine can be selectively connected to the system output shaft via a second, third and fourth gear sets respectively;

A first motor, wherein the first motor has a first motor output shaft, the first motor output shaft is connected to a fifth gear set via an eighth gear set, the fifth gear set is connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor respectively, and the first intermediate shaft of the motor and the second intermediate shaft of the motor can be selectively connected to a system output shaft via a sixth gear set and a seventh gear set respectively;

a second motor, the second motor having a second motor output shaft, the second motor output shaft being connected to a fifth gear set via an eighth gear set, the fifth gear set being connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor respectively, the first intermediate shaft of the motor and the second intermediate shaft of the motor being selectively connected to a system output shaft via a sixth gear set and a seventh gear set respectively;

A first clutch, the first clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets on both sides;

A second clutch, the second clutch is located on the system output shaft and can selectively mesh or not mesh with the gear corresponding to the seventh gear set on one side;

A third clutch, the third clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the third and fourth gear sets on both sides;

A fourth clutch, the fourth clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the first and second gear sets on both sides;

The fifth driving gear of the fifth gear set and the eighth driving gear of the eighth gear set are double gears sleeved on the output shaft of the system.

As a further preferred embodiment of the present invention, it also includes a zeroth clutch, which is located on the system output shaft and can selectively engage or not engage with one side of the output end; when in driving condition, the zeroth clutch engages with one side of the output end; when in parking power generation condition, the zeroth clutch does not engage with one side of the output end.

Furthermore, the present invention also provides a hybrid power system, characterized in that the hybrid power system comprises:

An engine, wherein the output shaft of the engine is connected to the engine input shaft via a main clutch; the engine input shaft is connected to the first intermediate shaft of the engine and the second intermediate shaft of the engine via a first gear set; the first intermediate shaft of the engine and the second intermediate shaft of the engine can be selectively connected to the system output shaft via a second, third and fourth gear sets respectively;

A first motor, wherein the first motor has a first motor output shaft, the first motor output shaft is connected to a fifth gear set via an eighth gear set, the fifth gear set is connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor respectively, and the first intermediate shaft of the motor and the second intermediate shaft of the motor can be selectively connected to a system output shaft via a sixth gear set and a seventh gear set respectively;

a second motor, the second motor having a second motor output shaft, the second motor output shaft being connected to a fifth gear set via an eighth gear set, the fifth gear set being connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor respectively, the first intermediate shaft of the motor and the second intermediate shaft of the motor being selectively connected to a system output shaft via a sixth gear set and a seventh gear set respectively;

A first clutch, the first clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets on both sides;

A second clutch, the second clutch is located on the system output shaft and can selectively mesh or not mesh with the gear corresponding to the seventh gear set on one side;

A third clutch, the third clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the third and fourth gear sets on both sides;

A fourth clutch, the fourth clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the first and second gear sets on both sides;

a fifth clutch, the fifth clutch being located on the system output shaft and being selectively engageable or non-engaged with a corresponding gear of the eighth gear set on one side;

The fifth driving gear of the fifth gear set is fixedly connected to the eighth driving gear of the eighth gear set and both are sleeved on the system output shaft.

Furthermore, the present invention also provides a hybrid power system, characterized in that the hybrid power system comprises:

An engine, wherein the output shaft of the engine is connected to the engine input shaft via a main clutch; the engine input shaft can be selectively connected to the first intermediate shaft of the engine and the second intermediate shaft of the engine through a first gear set and a second gear set respectively; the first intermediate shaft of the engine and the second intermediate shaft of the engine can be selectively connected to the system output shaft through a third gear set and a fourth gear set respectively;

A first motor, wherein the first motor has a first motor output shaft, the first motor output shaft is connected to a fifth gear set via an eighth gear set, the fifth gear set is connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor respectively, and the first intermediate shaft of the motor and the second intermediate shaft of the motor can be selectively connected to a system output shaft via a sixth gear set and a seventh gear set respectively;

a second motor, the second motor having a second motor output shaft, the second motor output shaft being connected to a fifth gear set via an eighth gear set, the fifth gear set being connected to a first intermediate shaft of the motor and a second intermediate shaft of the motor respectively, the first intermediate shaft of the motor and the second intermediate shaft of the motor being selectively connected to a system output shaft via a sixth gear set and a seventh gear set respectively;

A first clutch, the first clutch is located on the system output shaft and can selectively mesh or not mesh with the corresponding gear of the seventh gear set on one side;

A second clutch, the second clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the third and fourth gear sets on both sides;

A third clutch, the third clutch is located on the system output shaft and can selectively engage or not engage with the corresponding engine input shaft on one side;

A fourth clutch, the fourth clutch is located on the engine input shaft and can selectively mesh or not mesh with the gears of the first and second gear sets on both sides;

A fifth clutch, the fifth clutch is located on the system output shaft and can selectively mesh or not mesh with the gears of the fifth and sixth gear sets on both sides;

The fifth driving gear of the fifth gear set is fixedly connected to the eighth driving gear of the eighth gear set and both are sleeved on the system output shaft.

As a further preferred embodiment of the present invention, the first gear set includes a first driving gear fixedly connected or movably connected to the engine input shaft, a first intermediate first driven gear fixedly connected to the first intermediate shaft of the engine, and a second intermediate first driven gear fixedly connected to the second intermediate shaft of the engine, and the first driving gear is correspondingly meshed with the first intermediate first driven gear and the second intermediate first driven gear.

As a further preferred embodiment of the present invention, the second gear set includes a second driven gear sleeved on the system output shaft, a first intermediate second driving gear fixedly connected to the first intermediate shaft of the engine, and a second intermediate second driving gear fixedly connected to the second intermediate shaft of the engine, and the second driven gear is correspondingly meshed with the first intermediate second driving gear and the second intermediate second driving gear.

As a further preferred embodiment of the present invention, the second gear set includes a second driving gear sleeved on the engine input shaft, a first intermediate second driven gear fixedly connected to the first intermediate shaft of the engine, and a second intermediate second driven gear fixedly connected to the second intermediate shaft of the engine, and the second driving gear is correspondingly meshed with the first intermediate second driven gear and the second intermediate second driven gear.

As a further preferred embodiment of the present invention, the third gear set includes a third driven gear sleeved on the system output shaft, a first intermediate third driving gear fixedly connected to the first intermediate shaft of the engine, and a second intermediate third driving gear fixedly connected to the second intermediate shaft of the engine, and the third driven gear is correspondingly meshed with the first intermediate third driving gear and the second intermediate third driving gear.

As a further preferred embodiment of the present invention, the fourth gear set includes a fourth driven gear sleeved on the system output shaft, a first intermediate fourth driving gear fixedly connected to the first intermediate shaft of the engine, and a second intermediate fourth driving gear fixedly connected to the second intermediate shaft of the engine, and the fourth driven gear is correspondingly meshed with the first intermediate fourth driving gear and the second intermediate fourth driving gear.

As a further preferred embodiment of the present invention, the fifth gear set includes a fifth driving gear fixedly connected to the motor output shaft, a first intermediate fifth driven gear fixedly connected to the first intermediate shaft of the motor, and a second intermediate fifth driven gear fixedly connected to the second intermediate shaft of the motor, and the fifth driving gear is correspondingly meshed with the first intermediate fifth driven gear and the second intermediate fifth driven gear.

As a further preferred embodiment of the present invention, the fifth gear set includes a fifth driving gear fixedly connected to the output shaft of the first motor, and a fifth driven gear fixedly connected to the first intermediate shaft of the motor, and the fifth driving gear is meshed with the fifth driven gear accordingly;

The fifth-second gear set includes a fifth-second driving gear fixedly connected to the output shaft of the second motor and a fifth-second driven gear fixedly connected to the second intermediate shaft of the motor, and the fifth-second driving gear is meshed with the fifth-second driven gear accordingly.

As a further preferred embodiment of the present invention, the fifth gear set includes a fifth driving gear sleeved on the output shaft, a first intermediate fifth driven gear fixedly connected to the first intermediate shaft of the motor, and a second intermediate fifth driven gear fixedly connected to the second intermediate shaft of the motor, and the fifth driving gear is correspondingly meshed with the first intermediate fifth driven gear and the second intermediate fifth driven gear.

As a further preferred embodiment of the present invention, the sixth gear set includes a sixth driven gear sleeved on the system output shaft, a first intermediate sixth driving gear fixedly connected to the first intermediate shaft of the motor, and a second intermediate sixth driving gear fixedly connected to the second intermediate shaft of the motor, and the sixth driven gear is correspondingly meshed with the first intermediate sixth driving gear and the second intermediate sixth driving gear.

As a further preferred embodiment of the present invention, the seventh gear set includes a seventh driven gear sleeved on the system output shaft, a first intermediate seventh driving gear fixedly connected to the first intermediate shaft of the motor, and a second intermediate seventh driving gear fixedly connected to the second intermediate shaft of the motor, and the seventh driven gear is correspondingly meshed with the first intermediate seventh driving gear and the second intermediate seventh driving gear.

As a further preferred embodiment of the present invention, the eighth gear set includes an eighth driven gear sleeved on the system output shaft, a first intermediate eighth driving gear fixedly connected to the first motor output shaft, and a second intermediate eighth driving gear fixedly connected to the second motor output shaft, and the eighth driven gear is correspondingly meshed with the first intermediate eighth driving gear and the second intermediate eighth driving gear.

As a further preferred embodiment of the present invention, the engine input shaft is coaxially arranged with the system output shaft.

As a further preferred embodiment of the present invention, the system includes the following working conditions:

Driving condition 1: At this time, the main clutch is closed, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the third gear set, the second clutch is engaged with the gear of the seventh gear set, and the first clutch is in the middle position;

Driving condition 2: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the third gear set, the second clutch is not engaged, and the first clutch is engaged with the gear of the seventh gear set;

Driving condition 3: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the fourth gear set, the second clutch is not engaged, and the first clutch is engaged with the gear of the seventh gear set;

Driving condition 4: At this time, the main clutch is closed, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is not engaged, and the first clutch is engaged with the gear of the seventh gear set;

Driving condition 5: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, and the first clutch is in the middle position;

Driving condition 6: At this time, the main clutch is closed, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is not engaged, and the first clutch is engaged with the gear of the sixth gear set;

Driving condition 7: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, and the first clutch is engaged with the gear of the sixth gear set;

Driving condition 8: At this time, the main clutch is closed, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is not engaged, and the first clutch is engaged with the gear of the sixth gear set;

Driving condition 9: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is not engaged, and the first clutch is in the middle position;

Parking power generation condition 10: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear group, the third clutch is in the middle position, the second clutch is not engaged, and the first clutch is engaged with the gear of the sixth gear group.

As a further preferred embodiment of the present invention, the system includes the following working conditions:

Driving condition 1: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the third gear set, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the zeroth clutch is not engaged;

Driving condition 2: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the third gear set, the second clutch is not engaged, the first clutch is engaged with the gear of the seventh gear set, and the zeroth clutch is not engaged;

Driving condition 3: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the fourth gear set, the second clutch is not engaged, the first clutch is engaged with the gear of the seventh gear set, and the zeroth clutch is not engaged;

Driving condition 4: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is engaged with the gear of the seventh gear set, and the zeroth clutch is not engaged;

Driving condition 5: At this time, the main clutch is closed, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the zeroth clutch is not engaged;

Driving condition 6: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is engaged with the gear of the sixth gear set, and the zeroth clutch is not engaged;

Driving condition 7: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is engaged with the gear of the sixth gear set, and the zeroth clutch is not engaged;

Driving condition 8: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is engaged with the gear of the sixth gear set, and the zeroth clutch is not engaged;

Driving condition 9: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is in the middle position, and the zeroth clutch is not engaged;

Parking power generation condition 10: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear group, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is engaged with the gear of the sixth gear group, and the zeroth clutch is engaged.

As a further preferred embodiment of the present invention, the system includes the following working conditions:

Driving condition 1: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the fifth clutch C5 is not engaged;

Driving condition 2: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the third gear set, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the fifth clutch C5 is not engaged;

Driving condition 3: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the third gear set, the second clutch is not engaged, the first clutch is engaged with the gear of the sixth gear set, and the fifth clutch C5 is not engaged;

Driving condition 4: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is engaged with the gear of the sixth gear set, and the fifth clutch C5 is not engaged;

Driving condition 5: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the fourth gear set, the second clutch is not engaged, the first clutch is engaged with the gear of the sixth gear set, and the fifth clutch C5 is not engaged;

Driving condition 6: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is engaged with the gear of the fourth gear set, the second clutch is not engaged, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is not engaged;

Driving condition 7: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is not engaged;

Driving condition 8: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the fifth clutch C5 is not engaged;

Driving condition 9: At this time, the main clutch is closed, the fourth clutch is engaged with the gear of the first gear set, the third clutch is in the middle position, the second clutch is not engaged, the first clutch is in the middle position, and the fifth clutch C5 is engaged with the gear of the eighth gear set;

Driving condition 10: At this time, the main clutch is closed, the fourth clutch is in the middle position, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the fifth clutch C5 is engaged with the gear of the eighth gear set;

Parking power generation condition 11: At this time, the main clutch is closed and connected, the fourth clutch is in the middle position, the third clutch is in the middle position, the second clutch is engaged with the gear of the seventh gear set, the first clutch is in the middle position, and the fifth clutch C5 is not engaged.

As a further preferred embodiment of the present invention, the system includes the following working conditions:

Driving condition 1: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the fourth gear set, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 2: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the fourth gear set, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 3: At this time, the main clutch is closed, the fourth clutch is in the middle position, the third clutch is engaged with the engine input shaft SF1, the second clutch is engaged with the gear of the fourth gear set, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 4: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the third gear set, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 5: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the third gear set, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 6: At this time, the main clutch is closed, the fourth clutch is in the middle position, the third clutch is engaged with the engine input shaft SF1, the second clutch is engaged with the gear of the third gear set, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 7: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is engaged with the engine input shaft SF1, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 8: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is engaged with the engine input shaft SF1, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Driving condition 9: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the fourth gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 10: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the fourth gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 11: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the third gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 12: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the third gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 13: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 14: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 15: At this time, the main clutch is closed, the fourth clutch is in the middle position, the third clutch is engaged with the engine input shaft SF1, the second clutch is in the middle position, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set;

Driving condition 16: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the fourth gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Driving condition 17: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the fourth gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Driving condition 18: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the third gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Driving condition 19: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is engaged with the gear of the third gear set, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Driving condition 20: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear set, the third clutch is not engaged, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Driving condition 21: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Driving condition 22: At this time, the main clutch is closed, the fourth clutch is in the middle position, the third clutch is engaged with the engine input shaft SF1, the second clutch is in the middle position, the first clutch is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set;

Parking power generation condition 23: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the first gear set, the third clutch is not engaged, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear set, and the fifth clutch C5 is in the middle position;

Parking power generation condition 24: At this time, the main clutch is closed and connected, the fourth clutch is engaged with the gear of the second gear group, the third clutch is not engaged, the second clutch is in the middle position, the first clutch is engaged with the gear of the seventh gear group, and the fifth clutch C5 is in the middle position.

Compared with the prior art, the present invention can achieve the following technical effects:

1) The present invention provides a hybrid power system that can achieve up to 9 gears of engine operation mode, which can achieve high gear and high speed as well as meet the needs of low gear and large load, and at the same time, the speed ratio difference is small, which can make the engine continue to work in the high efficiency area. When the vehicle is at low power or zero power, it can still achieve vehicle escape and heavy load operation.

2) The present invention provides a hybrid power system that can achieve a more efficient parking power generation function, that is, when the vehicle is parked, the engine is stabilized in the optimal high efficiency zone, and the motor is driven to generate electricity through a suitable transmission ratio, while the motor can also be stabilized in the optimal high efficiency zone.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a first embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a third embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a fifth embodiment of the present invention.

FIG. 6 is a schematic structural diagram of a sixth embodiment of the present invention.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, 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 positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[First embodiment]

The present invention provides a hybrid power system, as shown in FIG1 , which is a first embodiment of the present invention. In this embodiment, the hybrid power system includes an engine F, wherein the output shaft of the engine is connected to the engine input shaft SF1 via a main clutch C; the engine input shaft SF1 is connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 via a first gear set GR1; the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 can be selectively connected to the system output shaft SO via a second, third, and fourth gear sets GR2, GR3, and GR4, respectively; the output power of the engine is transmitted to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 via the first gear set GR1, and then can be selectively transmitted to the system output shaft SO via the second, third, or fourth gear sets GR2, GR3, and GR4.

As shown in Figure 1, in this embodiment, the first gear set GR1 includes a first driving gear G11 fixedly connected to the engine input shaft SF1 and located on one side of the fourth clutch C4, a first intermediate first driven gear G12 fixedly connected to the engine first intermediate shaft SF2, and a second intermediate first driven gear G13 fixedly connected to the engine second intermediate shaft SF3, the first driving gear G11 is correspondingly meshed with the first intermediate first driven gear G12 and the second intermediate first driven gear G13; the output power of the engine is transmitted to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 via the corresponding meshing of the first driving gear with the first intermediate first driven gear G12 and the second intermediate first driven gear G13.

As shown in Figure 1, in this embodiment, the second gear set GR2 includes a second driven gear G21 which is sleeved on the system output shaft SO and located on the other side of the fourth clutch C4, a first intermediate second driving gear G22 fixedly connected to the first intermediate shaft SF2 of the engine, and a second intermediate second driving gear G23 fixedly connected to the second intermediate shaft SF3 of the engine, the second driven gear G21 is correspondingly meshed with the first intermediate second driving gear G22 and the second intermediate second driving gear G23, and the power output from the engine can be selectively transmitted to the output shaft via the correspondingly meshed second driven gear G21 and the first intermediate second driving gear G22 and the second intermediate second driving gear G23.

As shown in Figure 1, in this embodiment, the third gear set GR3 includes a third driven gear G31 which is sleeved on the system output shaft SO and located on one side of the third clutch C3, a first intermediate third driving gear G32 fixedly connected to the first intermediate shaft SF2 of the engine, and a second intermediate third driving gear G33 fixedly connected to the second intermediate shaft SF3 of the engine. The third driven gear G31 is correspondingly meshed with the first intermediate third driving gear G32 and the second intermediate third driving gear G33. The power output from the engine can be selectively transmitted to the output shaft via the correspondingly meshed third driven gear G31 and the first intermediate third driving gear G32 and the second intermediate third driving gear G33.

As shown in Figure 1, in this embodiment, the fourth gear set GR4 includes a fourth driven gear G41 which is sleeved on the system output shaft SO and located on the other side of the third clutch C3 and one side of the second clutch C2, a first intermediate fourth driving gear G42 fixedly connected to the first intermediate shaft SF2 of the engine, and a second intermediate fourth driving gear G43 fixedly connected to the second intermediate shaft SF3 of the engine, the fourth driven gear G41 is correspondingly meshed with the first intermediate fourth driving gear G42 and the second intermediate fourth driving gear G43, and the power output from the engine can be selectively transmitted to the output shaft via the correspondingly meshed fourth driven gear G41 and the first intermediate fourth driving gear G42 and the second intermediate fourth driving gear G43.

In this embodiment, the hybrid system also includes an electric motor EM, and the electric motor output shaft SE1 is connected to the electric motor first intermediate shaft SE2 and the electric motor second intermediate shaft SE3 through the fifth gear set GR5; the electric motor first intermediate shaft SE2 and the electric motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6 and GR7 respectively; the output power of the electric motor is transmitted to the electric motor first intermediate shaft SE2 and the electric motor second intermediate shaft SE3 via the fifth gear set GR5, and then can be selectively transmitted to the system output shaft SO via the sixth or seventh gear set GR6 and GR7.

As shown in Figure 1, in this embodiment, the fifth gear set GR5 includes a fifth driving gear G51 fixedly connected to the motor output shaft SE1, a first intermediate fifth driven gear G52 fixedly connected to the motor first intermediate shaft SE2, and a second intermediate fifth driven gear G53 fixedly connected to the motor second intermediate shaft SE3. The fifth driving gear G51 is correspondingly meshed with the first intermediate fifth driven gear G52 and the second intermediate fifth driven gear G53. The output power of the motor is transmitted to the first intermediate shaft SE2 and the second intermediate shaft SE3 of the motor via the corresponding meshing of the fifth driving gear G51 with the first intermediate fifth driven gear G52 and the second intermediate fifth driven gear G53.

As shown in Figure 1, in this embodiment, the sixth gear set GR6 includes a sixth driven gear G61 which is sleeved on the system output shaft SO and located on one side of the first clutch C1, a first intermediate sixth driving gear G62 fixedly connected to the first intermediate shaft SE2 of the motor, and a second intermediate sixth driving gear G63 fixedly connected to the second intermediate shaft SE3 of the motor. The sixth driven gear G61 is correspondingly meshed with the first intermediate sixth driving gear G62 and the second intermediate sixth driving gear G63. The power output from the motor can be selectively transmitted to the output shaft via the correspondingly meshed sixth driven gear G61 and the first intermediate sixth driving gear G62 and the second intermediate sixth driving gear G63.

As shown in Figure 1, in this embodiment, the seventh gear set GR7 includes a seventh driven gear G71 which is sleeved on the system output shaft SO and located on the other side of the first clutch C1 and the other side of the second clutch C2, a first intermediate seventh driving gear G72 fixedly connected to the first intermediate shaft SE2 of the motor, and a second intermediate seventh driving gear G73 fixedly connected to the second intermediate shaft SE3 of the motor. The seventh driven gear G71 is correspondingly meshed with the first intermediate seventh driving gear G72 and the second intermediate seventh driving gear G73. The power output from the motor can be selectively transmitted to the output shaft via the correspondingly meshed seventh driven gear G71 and the first intermediate seventh driving gear G72 and the second intermediate seventh driving gear G73.

In this embodiment, the hybrid power system further includes

A first clutch C1, which is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets GR6 and GR7 on both sides;

A second clutch C2, which is located on the system output shaft SO and can selectively mesh or not mesh with a corresponding gear of the seventh gear set GR7 on one side;

A third clutch C3, which is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the third and fourth gear sets GR3 and GR4 on both sides;

The fourth clutch C4 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the first and second gear sets GR1 and GR2 on both sides.

In this embodiment, as shown in FIG. 1 , the engine input shaft SF1 , the motor output shaft SE1 , and the system output shaft SO are coaxially arranged, and the system output shaft SO is embedded in the motor output shaft SE1 , thereby further simplifying the internal transmission structure of the hybrid power system and reducing the space occupied by the layout.

A hybrid power system provided in this embodiment includes the following operating conditions, as shown in Table 1 below:

Driving condition 1: At this time, the main clutch C is closed, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the third gear set GR3, the second clutch C2 is engaged with the gear of the seventh gear set GR7, and the first clutch C1 is in the middle position;

Driving condition 2: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the third gear set GR3, the second clutch C2 is not engaged, and the first clutch C1 is engaged with the gear of the seventh gear set GR7;

Driving condition 3: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the fourth gear set GR4, the second clutch C2 is not engaged, and the first clutch C1 is engaged with the gear of the seventh gear set GR7;

Driving condition 4: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, and the first clutch C1 is engaged with the gear of the seventh gear set GR7;

Driving condition 5: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is in the middle position, the second clutch C2 is engaged with the gear of the seventh gear set GR7, and the first clutch C1 is in the middle position;

Driving condition 6: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, and the first clutch C1 is engaged with the gear of the sixth gear set GR6;

Driving condition 7: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is in the middle position, the second clutch C2 is engaged with the gear of the seventh gear set GR7, and the first clutch C1 is engaged with the gear of the sixth gear set GR6;

Driving condition 8: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, and the first clutch C1 is engaged with the gear of the sixth gear set GR6;

Driving condition 9: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, and the first clutch C1 is in the middle position;

Parking power generation condition 10: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, and the first clutch C1 is engaged with the gear of the sixth gear set GR6.

Table 1 Table of working positions of various clutches in the first embodiment

Note: □ indicates the clutch engagement position

[Second embodiment]

FIG2 shows a hybrid power system provided by a second embodiment of the present invention, wherein the hybrid power system comprises:

Engine F, the output shaft of the engine is connected to the engine input shaft SF1 via the main clutch C; the engine input shaft SF1 is connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 through the first gear set GR1; the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 can be selectively connected to the system output shaft SO through the second, third and fourth gear sets GR2, GR3, GR4 respectively.

The first motor EM1, the first motor output shaft SE11 is connected to the motor first intermediate shaft SE2 through the fifth gear set GR51, and the motor first intermediate shaft SE2 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The second motor EM2, the second motor output shaft SE12 is connected to the motor second intermediate shaft SE3 through the fifth gear set GR52, and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The first clutch C1 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets GR6 and GR7 on both sides.

The second clutch C2 is located on the system output shaft SO and can selectively mesh with or not mesh with the corresponding gears of the seventh gear set GR7 on one side.

The third clutch C3 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the third and fourth gear sets GR3 and GR4 on both sides.

The fourth clutch C4 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the first and second gear sets GR1 and GR2 on both sides.

The engine input shaft SF1 is arranged coaxially with the system output shaft SO.

This embodiment realizes power coupling at the output shaft position through high-speed dual motors.

[Third embodiment]

FIG3 shows a hybrid power system provided by a third embodiment of the present invention, wherein the hybrid power system comprises:

Engine F, the output shaft of the engine is connected to the engine input shaft SF1 via the main clutch C; the engine input shaft SF1 is connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 through the first gear set GR1; the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 can be selectively connected to the system output shaft SO through the second, third and fourth gear sets GR2, GR3, GR4 respectively.

The first motor EM1, the first motor output shaft SE11 is connected to the fifth gear set GR5 through the eighth gear set GR8, the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The second motor EM2, the second motor output shaft SE12 is connected to the fifth gear set GR5 through the eighth gear set GR8, the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The first clutch C1 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets GR6 and GR7 on both sides.

The second clutch C2 is located on the system output shaft SO and can selectively mesh with or not mesh with the corresponding gears of the seventh gear set GR7 on one side.

The third clutch C3 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the third and fourth gear sets GR3 and GR4 on both sides.

The fourth clutch C4 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the first and second gear sets GR1 and GR2 on both sides.

Furthermore, the fifth driving gear of the fifth gear set GR5 and the eighth driving gear of the eighth gear set GR8 are double gears sleeved on the system output shaft SO.

This embodiment first couples power through high-speed dual motors and then realizes power splitting.

[Fourth embodiment]

As shown in FIG4 , a hybrid power system provided by the fourth embodiment of the present invention is different from the third embodiment only in that it also includes a zero clutch C0, which is located on the system output shaft SO and can selectively engage or not engage with one output end; when in driving condition, the zero clutch C0 is engaged with one output end; when in parking power generation condition, the zero clutch C0 is not engaged with one output end. By setting the zero clutch C0, efficient parking power generation of the vehicle in the parking power generation condition 10 working mode can be achieved.

[Fifth embodiment]

FIG5 shows a hybrid power system provided by a fifth embodiment of the present invention, wherein the hybrid power system comprises:

Engine F, the output shaft of the engine is connected to the engine input shaft SF1 via the main clutch C; the engine input shaft SF1 is connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 through the first gear set GR1; the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 can be selectively connected to the system output shaft SO through the second, third and fourth gear sets GR2, GR3, GR4 respectively.

The first motor EM1, the first motor output shaft SE11 is connected to the fifth gear set GR5 through the eighth gear set GR8, the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The second motor EM2, the second motor output shaft SE12 is connected to the fifth gear set GR5 through the eighth gear set GR8, the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The first clutch C1 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the sixth and seventh gear sets GR6 and GR7 on both sides.

The second clutch C2 is located on the system output shaft SO and can selectively mesh with or not mesh with the corresponding gears of the seventh gear set GR7 on one side.

The third clutch C3 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the third and fourth gear sets GR3 and GR4 on both sides.

The fourth clutch C4 is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the first and second gear sets GR1 and GR2 on both sides.

The fifth clutch C5 is located on the system output shaft SO and can selectively mesh with or not mesh with the corresponding gears of the eighth gear set GR8 on one side.

The fifth driving gear of the fifth gear set GR5 is fixedly connected to the eighth driving gear of the eighth gear set GR8 and both are sleeved on the system output shaft SO.

A hybrid power system provided in this embodiment includes the following operating conditions, as shown in Table 2 below:

Driving condition 1: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is in the middle position, the second clutch C2 is engaged with the gear of the seventh gear set GR7, the first clutch C1 is in the middle position, and the fifth clutch C5 is not engaged;

Driving condition 2: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the third gear set GR3, the second clutch C2 is engaged with the gear of the seventh gear set GR7, the first clutch C1 is in the middle position, and the fifth clutch C5 is not engaged;

Driving condition 3: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the third gear set GR3, the second clutch C2 is not engaged, the first clutch C1 is engaged with the gear of the sixth gear set GR6, and the fifth clutch C5 is not engaged;

Driving condition 4: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is in the middle position, the second clutch C2 is engaged with the gear of the seventh gear set GR7, the first clutch C1 is engaged with the gear of the sixth gear set GR6, and the fifth clutch C5 is not engaged;

Driving condition 5: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the fourth gear set GR4, the second clutch C2 is not engaged, the first clutch C1 is engaged with the gear of the sixth gear set GR6, and the fifth clutch C5 is not engaged;

Driving condition 6: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the gear of the fourth gear set GR4, the second clutch C2 is not engaged, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is not engaged;

Driving condition 7: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is not engaged;

Driving condition 8: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is in the middle position, the second clutch C2 is engaged with the gear of the seventh gear set GR7, the first clutch C1 is in the middle position, and the fifth clutch C5 is not engaged;

Driving condition 9: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is in the middle position, the second clutch C2 is not engaged, the first clutch C1 is in the middle position, and the fifth clutch C5 is engaged with the gear of the eighth gear set GR8;

Driving condition 10: At this time, the main clutch C is closed, the fourth clutch C4 is in the middle position, the third clutch C3 is in the middle position, the second clutch is engaged with the gear of the seventh gear set GR7, the first clutch C1 is in the middle position, and the fifth clutch C5 is engaged with the gear of the eighth gear set GR8;

Parking power generation condition 11: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is in the middle position, the second clutch C2 is engaged with the gear of the seventh gear set GR7, the first clutch C1 is in the middle position, and the fifth clutch C5 is not engaged.

Table 2 Table of working positions of each clutch in the fifth embodiment

Note: □ indicates the clutch engagement position

[Sixth embodiment]

As shown in FIG6 , a hybrid power system provided by the sixth embodiment of the present invention is mainly different from the fifth embodiment in that: in the fifth embodiment, the terminal of the engine input shaft SF1 is movably connected with the first driving gear G11, and the second driven gear G21 is sleeved on the system output shaft SO; one end of the system output shaft SO is connected to the fourth clutch C4, and the other end is connected to the output flange. In the sixth embodiment, the terminal of the engine input shaft SF1 passes through the first driving gear G11, the fourth clutch C4, and the second driven gear G21; one end of the system output shaft SO passes through the third driven gear G31, and the other end is connected to the output flange; wherein, the terminal of the engine input shaft SF1 is not connected to one end of the system output shaft SO.

The hybrid power system comprises:

Engine F, the output shaft of the engine is connected to the engine input shaft SF1 via the main clutch C; the engine input shaft SF1 can be selectively connected to the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 through the first gear set GR1 and the second gear set GR2 respectively; the engine first intermediate shaft SF2 and the engine second intermediate shaft SF3 can be selectively connected to the system output shaft SO through the third and fourth gear sets GR3, GR4 respectively.

The first motor EM1, the first motor output shaft SE11 is connected to the fifth gear set GR5 through the eighth gear set GR8, the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

The second motor EM2, the second motor output shaft SE12 is connected to the fifth gear set GR5 through the eighth gear set GR8, the fifth gear set GR5 is respectively connected to the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3, the motor first intermediate shaft SE2 and the motor second intermediate shaft SE3 can be selectively connected to the system output shaft SO through the sixth and seventh gear sets GR6, GR7 respectively.

A first clutch C1, which is located on the system output shaft SO and can selectively mesh or not mesh with a corresponding gear of the seventh gear set GR7 on one side;

A second clutch C2, which is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the third and fourth gear sets GR3 and GR4 on both sides;

A third clutch C3, the third clutch C3 is located on the system output shaft SO and can selectively engage or not engage with one side of the engine input shaft SF1;

A fourth clutch C4, which is located on the engine input shaft SF1 and can selectively mesh or not mesh with the gears of the first and second gear sets GR1 and GR2 on both sides;

A fifth clutch C5, which is located on the system output shaft SO and can selectively mesh or not mesh with the gears of the fifth and sixth gear sets GR5 and GR6 on both sides;

The fifth driving gear of the fifth gear set GR5 is fixedly connected to the eighth driving gear of the eighth gear set GR8 and both are sleeved on the system output shaft SO.

A hybrid power system provided in this embodiment includes the following operating conditions, as shown in Table 3 below:

Driving condition 1: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 2: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 3: At this time, the main clutch C is closed, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the engine input shaft SF1, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 4: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 5: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 6: At this time, the main clutch C is closed, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the engine input shaft SF1, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 7: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is engaged with the engine input shaft SF1, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 8: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is engaged with the engine input shaft SF1, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position;

Driving condition 9: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5;

Driving condition 10: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5.

Driving condition 11: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5;

Driving condition 12: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5;

Driving condition 13: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5;

Driving condition 14: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5;

Driving condition 15: At this time, the main clutch C is closed, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the engine input shaft SF1, the second clutch C2 is in the middle position, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the fifth gear set GR5;

Driving condition 16: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6;

Driving condition 17: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the fourth gear set GR4, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6;

Driving condition 18: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6;

Driving condition 19: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is engaged with the gear of the third gear set GR3, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6;

Driving condition 20: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6.

Driving condition 21: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6.

Driving condition 22: At this time, the main clutch C is closed and connected, the fourth clutch C4 is in the middle position, the third clutch C3 is engaged with the engine input shaft SF1, the second clutch C2 is in the middle position, the first clutch C1 is not engaged, and the fifth clutch C5 is engaged with the gear of the sixth gear set GR6.

Parking power generation condition 23: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the first gear set GR1, the third clutch C3 is not engaged, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position.

Parking power generation condition 24: At this time, the main clutch C is closed and connected, the fourth clutch C4 is engaged with the gear of the second gear set GR2, the third clutch C3 is not engaged, the second clutch C2 is in the middle position, the first clutch C1 is engaged with the gear of the seventh gear set GR7, and the fifth clutch C5 is in the middle position.

Table 3 Table of working positions of each clutch in the fifth embodiment

Note: □ indicates the clutch engagement position

It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims (23)

1. A hybrid system, characterized in that the hybrid system comprises:

An engine (F) whose output shaft is connected to an engine input shaft (SF 1) via a main clutch (C); the engine input shaft (SF 1) is connected with the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine through a first gear set (GR 1); the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine are selectively connected with a system output Shaft (SO) through a second gear set, a third gear set and a fourth gear set (GR 2, GR3 and GR 4) respectively;

-a motor (EM) having a motor output shaft (SE 1); the motor output shaft (SE 1) is connected with a motor first intermediate shaft (SE 2) and a motor second intermediate shaft (SE 3) through a fifth gear set (GR 5); the motor first intermediate shaft (SE 2) and the motor second intermediate shaft (SE 3) are selectively connected with a system output Shaft (SO) through a sixth gear set (GR 6) and a seventh gear set (GR 7) respectively;

A first clutch (C1), the first clutch (C1) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from gears of the sixth and seventh gear sets (GR 6, GR 7) on both sides;

A second clutch (C2), the second clutch (C2) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from a gear of a side seventh gear set (GR 7);

A third clutch (C3), the third clutch (C3) being located on the system output Shaft (SO) and being selectively engageable or disengageable in correspondence with the gears of the third and fourth gear sets (GR 3, GR 4) on both sides;

A fourth clutch (C4), the fourth clutch (C4) is positioned on the system output Shaft (SO) and can be selectively engaged with or disengaged from gears of the first and second gear sets (GR 1, GR 2) at two sides correspondingly.

2. A hybrid system, characterized in that the hybrid system comprises:

An engine (F) whose output shaft is connected to an engine input shaft (SF 1) via a main clutch (C); the engine input shaft (SF 1) is connected with the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine through a first gear set (GR 1); the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine are selectively connected with a system output Shaft (SO) through a second gear set, a third gear set and a fourth gear set (GR 2, GR3 and GR 4) respectively;

a first electric machine (EM 1), the first electric machine (EM 1) having a first electric machine output shaft (SE 11), the first electric machine output shaft (SE 11) being connected to a first electric machine intermediate shaft (SE 2) by a fifth gear set (GR 51), the first electric machine intermediate shaft (SE 2) being selectively connected to a system output Shaft (SO) by a sixth and seventh gear set (GR 6, GR 7), respectively;

A second electric machine (EM 2), the second electric machine (EM 2) having a second electric machine output shaft (SE 12), the second electric machine output shaft (SE 12) being connected to a second electric machine intermediate shaft (SE 3) by a fifth second gear set (GR 52), the second electric machine intermediate shaft (SE 3) being selectively connectable to the system output Shaft (SO) by a sixth and seventh gear set (GR 6, GR 7), respectively;

A first clutch (C1), the first clutch (C1) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from gears of the sixth and seventh gear sets (GR 6, GR 7) on both sides;

A second clutch (C2), the second clutch (C2) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from a gear of a side seventh gear set (GR 7);

A third clutch (C3), the third clutch (C3) being located on the system output Shaft (SO) and being selectively engageable or disengageable in correspondence with the gears of the third and fourth gear sets (GR 3, GR 4) on both sides;

A fourth clutch (C4), the fourth clutch (C4) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from the gears of the first and second gear sets (GR 1, GR 2) on both sides;

the engine input shaft (SF 1) is arranged coaxially with the system output Shaft (SO).

3. A hybrid system, characterized in that the hybrid system comprises:

An engine (F) whose output shaft is connected to an engine input shaft (SF 1) via a main clutch (C); the engine input shaft (SF 1) is connected with the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine through a first gear set (GR 1); the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine are selectively connected with a system output Shaft (SO) through a second gear set, a third gear set and a fourth gear set (GR 2, GR3 and GR 4) respectively;

A first electric machine (EM 1), the first electric machine (EM 1) having a first electric machine output shaft (SE 11), the first electric machine output shaft (SE 11) being connected to a fifth gear set (GR 5) by an eighth gear set (GR 8), the fifth gear set (GR 5) being connected to a first electric machine intermediate shaft (SE 2) and a second electric machine intermediate shaft (SE 3), respectively, the first electric machine intermediate shaft (SE 2) and the second electric machine intermediate shaft (SE 3) being selectively connected to the system output Shaft (SO) via a sixth and a seventh gear sets (GR 6, GR 7), respectively;

A second electric machine (EM 2), the second electric machine (EM 2) having a second electric machine output shaft (SE 12), the second electric machine output shaft (SE 12) being connected to a fifth gear set (GR 5) via an eighth gear set (GR 8), the fifth gear set (GR 5) being connected to a first electric machine intermediate shaft (SE 2) and a second electric machine intermediate shaft (SE 3), respectively, the first electric machine intermediate shaft (SE 2) and the second electric machine intermediate shaft (SE 3) being connected to the system output Shaft (SO) optionally via a sixth and a seventh gear set (GR 6, GR 7), respectively;

A first clutch (C1), the first clutch (C1) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from gears of the sixth and seventh gear sets (GR 6, GR 7) on both sides;

A second clutch (C2), the second clutch (C2) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from a gear of a side seventh gear set (GR 7);

A third clutch (C3), the third clutch (C3) being located on the system output Shaft (SO) and being selectively engageable or disengageable in correspondence with the gears of the third and fourth gear sets (GR 3, GR 4) on both sides;

A fourth clutch (C4), the fourth clutch (C4) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from the gears of the first and second gear sets (GR 1, GR 2) on both sides;

And the fifth driving gear of the fifth gear set (GR 5) and the eighth driving gear of the eighth gear set (GR 8) are duplex gears sleeved on the system output Shaft (SO).

4. A hybrid system according to claim 3, wherein: -a zeroth clutch (C0), said zeroth clutch (C0) being located on said system output Shaft (SO) and being selectively engageable with or disengageable from one side output; when the driving working condition is met, the zeroth clutch (C0) is meshed with one side of the output end; and when the power generation is stopped, the zeroth clutch (C0) is not meshed with the output end at one side.

5. A hybrid system, characterized in that the hybrid system comprises:

An engine (F) whose output shaft is connected to an engine input shaft (SF 1) via a main clutch (C); the engine input shaft (SF 1) is connected with the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine through a first gear set (GR 1); the first intermediate shaft (SF 2) of the engine and the second intermediate shaft (SF 3) of the engine are selectively connected with a system output Shaft (SO) through a second gear set, a third gear set and a fourth gear set (GR 2, GR3 and GR 4) respectively;

A first electric machine (EM 1), the first electric machine (EM 1) having a first electric machine output shaft (SE 11), the first electric machine output shaft (SE 11) being connected to a fifth gear set (GR 5) by an eighth gear set (GR 8), the fifth gear set (GR 5) being connected to a first electric machine intermediate shaft (SE 2) and a second electric machine intermediate shaft (SE 3), respectively, the first electric machine intermediate shaft (SE 2) and the second electric machine intermediate shaft (SE 3) being selectively connected to the system output Shaft (SO) via a sixth and a seventh gear sets (GR 6, GR 7), respectively;

A second electric machine (EM 2), the second electric machine (EM 2) having a second electric machine output shaft (SE 12), the second electric machine output shaft (SE 12) being connected to a fifth gear set (GR 5) via an eighth gear set (GR 8), the fifth gear set (GR 5) being connected to a first electric machine intermediate shaft (SE 2) and a second electric machine intermediate shaft (SE 3), respectively, the first electric machine intermediate shaft (SE 2) and the second electric machine intermediate shaft (SE 3) being connected to the system output Shaft (SO) optionally via a sixth and a seventh gear set (GR 6, GR 7), respectively;

A first clutch (C1), the first clutch (C1) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from gears of the sixth and seventh gear sets (GR 6, GR 7) on both sides;

A second clutch (C2), the second clutch (C2) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from a gear of a side seventh gear set (GR 7);

A third clutch (C3), the third clutch (C3) being located on the system output Shaft (SO) and being selectively engageable or disengageable in correspondence with the gears of the third and fourth gear sets (GR 3, GR 4) on both sides;

A fourth clutch (C4), the fourth clutch (C4) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from the gears of the first and second gear sets (GR 1, GR 2) on both sides;

A fifth clutch (C5), the fifth clutch (C5) being located on the system output Shaft (SO) and being selectively correspondingly engaged or disengaged with the gears of the one-sided eighth gear set (GR 8);

The fifth driving gear of the fifth gear set (GR 5) is fixedly connected with the eighth driving gear of the eighth gear set (GR 8) and is sleeved on the system output Shaft (SO).

6. A hybrid system, characterized in that the hybrid system comprises:

An engine (F) whose output shaft is connected to an engine input shaft (SF 1) via a main clutch (C); the engine input shaft (SF 1) is selectively connected with the engine first intermediate shaft (SF 2) and the engine second intermediate shaft (SF 3) through a first gear set (GR 1) and a second gear set (GR 2) respectively; the first intermediate shaft (SF 2) and the second intermediate shaft (SF 3) of the engine are selectively connected with the system output Shaft (SO) through a third gear set and a fourth gear set (GR 3, GR 4) respectively;

A first electric machine (EM 1), the first electric machine (EM 1) having a first electric machine output shaft (SE 11), the first electric machine output shaft (SE 11) being connected to a fifth gear set (GR 5) by an eighth gear set (GR 8), the fifth gear set (GR 5) being connected to a first electric machine intermediate shaft (SE 2) and a second electric machine intermediate shaft (SE 3), respectively, the first electric machine intermediate shaft (SE 2) and the second electric machine intermediate shaft (SE 3) being selectively connected to the system output Shaft (SO) via a sixth and a seventh gear sets (GR 6, GR 7), respectively;

A second electric machine (EM 2), the second electric machine (EM 2) having a second electric machine output shaft (SE 12), the second electric machine output shaft (SE 12) being connected to a fifth gear set (GR 5) via an eighth gear set (GR 8), the fifth gear set (GR 5) being connected to a first electric machine intermediate shaft (SE 2) and a second electric machine intermediate shaft (SE 3), respectively, the first electric machine intermediate shaft (SE 2) and the second electric machine intermediate shaft (SE 3) being connected to the system output Shaft (SO) optionally via a sixth and a seventh gear set (GR 6, GR 7), respectively;

a first clutch (C1), said first clutch (C1) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from a gear of a side seventh gear set (GR 7);

A second clutch (C2), the second clutch (C2) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from the gears of the third and fourth gear sets (GR 3, GR 4) on both sides;

A third clutch (C3), said third clutch (C3) being located on said system output Shaft (SO) and being selectively engageable or disengageable in correspondence with one side engine input shaft (SF 1);

A fourth clutch (C4), the fourth clutch (C4) being located on the engine input shaft (SF 1) and being selectively engageable with or disengageable from gears of the first and second gear sets (GR 1, GR 2) on both sides;

a fifth clutch (C5), the fifth clutch (C5) being located on the system output Shaft (SO) and being selectively engageable with or disengageable from gears of the two side fifth and sixth gear sets (GR 5, GR 6);

The fifth driving gear of the fifth gear set (GR 5) is fixedly connected with the eighth driving gear of the eighth gear set (GR 8) and is sleeved on the system output Shaft (SO).

7. A hybrid system according to any one of claims 1-5, characterized in that: the first gear set (GR 1) comprises a first driving gear (G11) fixedly connected with the engine input shaft (SF 1), a first middle first driven gear (G12) fixedly connected with the engine first intermediate shaft (SF 2) and a second middle first driven gear (G13) fixedly connected with the engine second intermediate shaft (SF 3), and the first driving gear (G11) is correspondingly meshed with the first middle first driven gear (G12) and the second middle first driven gear (G13).

8. A hybrid system according to claim 6, wherein: the first gear set (GR 1) comprises a first driving gear (G11) movably sleeved with the engine input shaft (SF 1), a first middle first driven gear (G12) fixedly connected with the engine first intermediate shaft (SF 2) and a second middle first driven gear (G13) fixedly connected with the engine second intermediate shaft (SF 3), and the first driving gear (G11) is correspondingly meshed with the first middle first driven gear (G12) and the second middle first driven gear (G13).

9. A hybrid powertrain according to claim 7, wherein: the second gear set (GR 2) comprises a second driven gear (G21) sleeved on the system output Shaft (SO), a first middle second driving gear (G22) fixedly connected with the first middle shaft (SF 2) of the engine and a second middle second driving gear (G23) fixedly connected with the second middle shaft (SF 3) of the engine, and the second driven gear (G21) is correspondingly meshed with the first middle second driving gear (G22) and the second middle second driving gear (G23).

10. A hybrid powertrain according to claim 8, wherein: the second gear set (GR 2) comprises a second driving gear (G21) sleeved on the engine input shaft (SF 1), a first middle second driven gear (G22) fixedly connected with the engine first middle shaft (SF 2) and a second middle second driven gear (G23) fixedly connected with the engine second middle shaft (SF 3), and the second driving gear (G21) is correspondingly meshed with the first middle second driven gear (G22) and the second middle second driven gear (G23).

11. A hybrid system according to any one of claims 1-6, characterized in that: the third gear set (GR 3) comprises a third driven gear (G31) sleeved on the system output Shaft (SO), a first middle third driving gear (G32) fixedly connected with the first middle shaft (SF 2) of the engine and a second middle third driving gear (G33) fixedly connected with the second middle shaft (SF 3) of the engine, and the third driven gear (G31) is correspondingly meshed with the first middle third driving gear (G32) and the second middle third driving gear (G33).

12. A hybrid powertrain as recited in claim 11, wherein: the fourth gear set (GR 4) comprises a fourth driven gear (G41) sleeved on the system output Shaft (SO), a first middle fourth driving gear (G42) fixedly connected with the first middle shaft (SF 2) of the engine and a second middle fourth driving gear (G43) fixedly connected with the second middle shaft (SF 3) of the engine, and the fourth driven gear (G41) is correspondingly meshed with the first middle fourth driving gear (G42) and the second middle fourth driving gear (G43).

13. A hybrid system according to claim 1, wherein: the fifth gear set (GR 5) comprises a fifth driving gear (G51) fixedly connected with the motor output shaft (SE 1), a first middle fifth driven gear (G52) fixedly connected with the motor first middle shaft (SE 2) and a second middle fifth driven gear (G53) fixedly connected with the motor second middle shaft (SE 3), and the fifth driving gear (G51) is correspondingly meshed with the first middle fifth driven gear (G52) and the second middle fifth driven gear (G53).

14. A hybrid system according to claim 2, characterized in that:

The fifth gear set (GR 51) includes a fifth driving gear fixedly connected to the first motor output shaft (SE 11), and a fifth driven gear fixedly connected to the first motor intermediate shaft (SE 2), where the fifth driving gear is correspondingly meshed with the fifth driven gear;

The fifth second gear set (GR 52) comprises a fifth second driving gear fixedly connected with the second motor output shaft (SE 12) and a fifth second driven gear fixedly connected with the motor second intermediate shaft (SE 3), and the fifth second driving gear is correspondingly meshed with the fifth second driven gear.

15. A hybrid system according to any one of claims 3-6, characterized in that: the fifth gear set (GR 5) comprises a fifth driving gear sleeved on the output Shaft (SO), a first middle fifth driven gear (G52) fixedly connected with the first middle shaft (SE 2) of the motor and a second middle fifth driven gear (G53) fixedly connected with the second middle shaft (SE 3) of the motor, and the fifth driving gear (G51) is correspondingly meshed with the first middle fifth driven gear (G52) and the second middle fifth driven gear (G53).

16. A hybrid system according to any one of claims 1-6, characterized in that: the sixth gear set (GR 6) comprises a sixth driven gear (G61) sleeved on the system output Shaft (SO), a first middle sixth driving gear (G62) fixedly connected with the motor first intermediate shaft (SE 2) and a second middle sixth driving gear (G63) fixedly connected with the motor second intermediate shaft (SE 3), and the sixth driven gear (G61) is correspondingly meshed with the first middle sixth driving gear (G62) and the second middle sixth driving gear (G63).

17. A hybrid system according to any one of claims 1-6, characterized in that: the seventh gear set (GR 7) comprises a seventh driven gear (G71) sleeved on the system output Shaft (SO), a first middle seventh driving gear (G72) fixedly connected with the motor first intermediate shaft (SE 2) and a second middle seventh driving gear (G73) fixedly connected with the motor second intermediate shaft (SE 3), and the seventh driven gear (G71) is correspondingly meshed with the first middle seventh driving gear (G72) and the second middle seventh driving gear (G73).

18. A hybrid system according to any one of claims 3-6, characterized in that: the eighth gear set (GR 8) comprises an eighth driven gear sleeved on the system output Shaft (SO), a first middle eighth driving gear fixedly connected with the first motor output shaft (SE 11) and a second middle eighth driving gear fixedly connected with the second motor output shaft (SE 12), and the eighth driven gear is correspondingly meshed with the first middle eighth driving gear and the second middle eighth driving gear.

19. A hybrid system according to any one of claims 1-6, characterized in that: the engine input shaft (SF 1) is arranged coaxially with the system output Shaft (SO).

20. A hybrid system according to any one of claims 1-3, characterized in that: the system comprises the following working conditions:

Driving condition 1: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is engaged with the gear of the third gear set (GR 3), the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), and the first clutch (C1) is positioned at the middle position;

driving condition 2: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the third gear set (GR 3), the second clutch (C2) is not engaged, and the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7);

driving condition 3: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the fourth gear set (GR 4), the second clutch (C2) is not engaged, and the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7);

driving condition 4: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, and the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7);

Driving condition 5: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), and the first clutch (C1) is positioned at the middle position;

Driving condition 6: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, and the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 7: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), and the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 8: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, and the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 9: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear group (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, and the first clutch (C1) is positioned at the middle position;

Parking power generation condition 10: at this time, the main clutch (C) is closed and engaged, the fourth clutch (C4) is engaged with the gear of the first gear group (GR 1), the third clutch (C3) is at the neutral position, the second clutch (C2) is not engaged, and the first clutch (C1) is engaged with the gear of the sixth gear group (GR 6).

21. A hybrid system according to claim 4, wherein: the system comprises the following working conditions:

Driving condition 1: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is engaged with the gear of the third gear set (GR 3), the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is positioned at the middle position, and the zeroth clutch (C0) is not engaged;

driving condition 2: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the third gear set (GR 3), the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the zeroth clutch (C0) is not engaged;

Driving condition 3: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the fourth gear set (GR 4), the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the zeroth clutch (C0) is not engaged;

driving condition 4: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the zeroth clutch (C0) is not engaged;

Driving condition 5: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is positioned at the middle position, and the zeroth clutch (C0) is not engaged;

Driving condition 6: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6), and the zeroth clutch (C0) is not engaged;

driving condition 7: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6), and the zeroth clutch (C0) is not engaged;

Driving condition 8: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6), and the zeroth clutch (C0) is not engaged;

driving condition 9: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear group (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, the first clutch (C1) is positioned at the middle position, and the zeroth clutch (C0) is not engaged;

Parking power generation condition 10: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear group (GR 1), the third clutch (C3) is positioned at the neutral position, the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the sixth gear group (GR 6), and the zeroth clutch (C0) is engaged.

22. A hybrid system according to claim 5, wherein: the system comprises the following working conditions:

Driving condition 1: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is positioned at the middle position, and the fifth clutch (C5) is not engaged;

Driving condition 2: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the third gear set (GR 3), the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is located at the middle position, and the fifth clutch (C5) is not engaged;

Driving condition 3: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the third gear group (GR 3), the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the sixth gear group (GR 6), and the fifth clutch (C5) is not engaged;

Driving condition 4: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is engaged with the gear of the sixth gear set (GR 6), and the fifth clutch (C5) is not engaged;

Driving condition 5: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the fourth gear group (GR 4), the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the sixth gear group (GR 6), and the fifth clutch (C5) is not engaged;

driving condition 6: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the gear of the fourth gear set (GR 4), the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is not engaged;

Driving condition 7: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is not engaged;

driving condition 8: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is positioned at the middle position, and the fifth clutch (C5) is not engaged;

driving condition 9: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is positioned at the middle position, the second clutch (C2) is not engaged, the first clutch (C1) is positioned at the middle position, and the fifth clutch (C5) is engaged with the gear of the eighth gear set (GR 8);

Driving condition 10: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is positioned at the middle position, the second clutch is engaged with the gear of the seventh gear set (GR 7), the first clutch (C1) is positioned at the middle position, and the fifth clutch (C5) is engaged with the gear of the eighth gear set (GR 8);

parking power generation condition 11: at this time, the main clutch (C) is closed and engaged, the fourth clutch (C4) is in neutral position, the third clutch (C3) is in neutral position, the second clutch (C2) is engaged with the gear of the seventh gear group (GR 7), the first clutch (C1) is in neutral position, and the fifth clutch (C5) is not engaged.

23. A hybrid system according to claim 6, wherein: the system comprises the following working conditions:

Driving condition 1: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 2: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 3: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is engaged with the engine input shaft (SF 1), the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 4: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 5: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

driving condition 6: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is positioned at the middle position, the third clutch (C3) is engaged with the engine input shaft (SF 1), the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 7: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is engaged with the engine input shaft (SF 1), the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 8: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is engaged with the engine input shaft (SF 1), the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

Driving condition 9: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the fifth gear set (GR 5);

Driving condition 10: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the fifth gear set (GR 5);

Driving condition 11: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the fifth gear set (GR 5);

Driving condition 12: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the fifth gear set (GR 5);

Driving condition 13: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is engaged with the gear of the fifth gear set (GR 5);

Driving condition 14: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is engaged with the gear of the fifth gear set (GR 5);

driving condition 15: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the engine input shaft (SF 1), the second clutch (C2) is located at the middle position, the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the fifth gear group (GR 5);

driving condition 16: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the sixth gear set (GR 6);

driving condition 17: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the fourth gear set (GR 4), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 18: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 19: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is engaged with the gear of the third gear set (GR 3), the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 20: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear set (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 21: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is engaged with the gear of the sixth gear set (GR 6);

Driving condition 22: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is located at the middle position, the third clutch (C3) is engaged with the engine input shaft (SF 1), the second clutch (C2) is located at the middle position, the first clutch (C1) is not engaged, and the fifth clutch (C5) is engaged with the gear of the sixth gear group (GR 6);

Parking power generation condition 23: at the moment, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the first gear set (GR 1), the third clutch (C3) is not engaged, the second clutch (C2) is positioned at the middle position, the first clutch (C1) is engaged with the gear of the seventh gear set (GR 7), and the fifth clutch (C5) is positioned at the middle position;

parking power generation condition 24: at this time, the main clutch (C) is closed and connected, the fourth clutch (C4) is engaged with the gear of the second gear group (GR 2), the third clutch (C3) is not engaged, the second clutch (C2) is at the neutral position, the first clutch (C1) is engaged with the gear of the seventh gear group (GR 7), and the fifth clutch (C5) is at the neutral position.