IP Library › Granted Patent US 12697864
Granted Patent B2
US 12697864 · App. 18/875,510 · Granted Aug 4, 2026

Hybrid power system and hybrid vehicle equipped with same

Inventors: Wensen Zhang (Wuhu, CN); Yongfu Liu (Wuhu, CN); Chuanfei Xu (Wuhu, CN); Longfang Sun (Wuhu, CN); Xiang Li (Wuhu, CN)
Assignee: CHERY AUTOMOBILE CO., LTD.
B60K6/387B60K6/24B60K6/26B60K6/405B60K6/442
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Quick Facts
Patent No.
US 12697864
App. No.
18/875,510
Granted
Aug 4, 2026
Kind
B2
Abstract

A hybrid power system includes a first clutch, a second clutch, an engine, a first motor, a second motor, and a power output assembly. Two ends of the first clutch are respectively connected to the first motor and the engine; two ends of the second clutch are respectively connected to the first clutch and the power output assembly. The second motor is connected to the power output assembly. The first clutch and the second clutch are disposed in a radial direction of an output shaft of the first motor, and the second clutch is disposed on a side, away from the output shaft of the first motor, of the first clutch

Claims (58)

1 . A hybrid power system, comprising: a first clutch, a second clutch, an engine, a first motor, a second motor, and a power output assembly; wherein

two ends of the first clutch are respectively connected to the first motor and the engine;

two ends of the second clutch are respectively connected to the first clutch and the power output assembly; and

the second motor is connected to the power output assembly;

wherein the first clutch and the second clutch are disposed in a radial direction of an output shaft of the first motor, and the second clutch is disposed on a side of the first clutch which is away from the output shaft of the first motor; and

further comprising: a housing; wherein

the first motor, the second motor, the first clutch, and the second clutch are all disposed inside the housing, and an arrangement direction of the first motor and the second motor inside the housing is perpendicular to an axis of the output shaft of the first motor; and

the engine is disposed outside the housing, and an output shaft of the engine comprises a power output of the engine and a connection shaft detachably connected to the power output of the engine, wherein the connection shaft is disposed inside the housing and is rotatable relative to the housing, and part of the connection shaft protrudes from the housing.

2 . The system according to claim 1 , wherein

the first clutch comprises a first portion and a second portion, wherein the first portion and the second portion are controllably engaged or disengaged; and

the second clutch comprises a third portion and a fourth portion, wherein the third portion and the fourth portion are controllably engaged or disengaged;

wherein the second portion of the first clutch is connected to the third portion of the second clutch.

3 . The system according to claim 2 , wherein the second portion and the third portion are integrally connected.

4 . The system according to claim 2 , wherein

the first portion is sleeved on an output shaft of the engine, and one end of the second portion is sleeved on the output shaft of the first motor, and the other end of the second portion is disposed on a side of the first portion which is away from the output shaft of the engine and the other end of the second portion is engaged with the first portion; and

the third portion is sleeved on the other end of the second portion, and one end of the fourth portion is connected to the power output assembly, and the other end of the fourth portion is disposed on a side of the third portion which is away from the second portion and the other end of the fourth portion is engaged with the third portion.

5 . The system according to claim 4 , wherein the output shaft of the first motor is a step shaft, wherein a diameter of a shaft head of the step shaft is less than a diameter of a shaft body of the step shaft, and the second portion is connected to the shaft head, such that at least part of the second portion is accommodated in an annular space surrounding the shaft head.

6 . The system according to claim 2 , wherein

the first portion is an inner hub of the first clutch, and the second portion is an outer hub of the first clutch;

the third portion is an inner hub of the second clutch, and the fourth portion is an outer hub of the second clutch;

wherein the outer hub of the first clutch and the inner hub of the second clutch are formed by respectively machining splines on an inner wall and an outer wall of a same hub sleeve.

7 . The system according to claim 6 , wherein the splines on the inner wall of the same hub sleeve and the splines on the outer wall of the same hub sleeve are arranged in an opposing staggered configuration.

8 . The system according to claim 2 , wherein the power output assembly comprises a hollow shaft, wherein

the hollow shaft is sleeved on an output shaft of the engine and is rotatable relative to the output shaft of the engine;

a length of the hollow shaft is less than a length of the output shaft of the engine, such that an end of the output shaft of the engine protrudes from the hollow shaft and is connected to the first portion; and

the fourth portion is connected to the hollow shaft.

9 . The system according to claim 1 , wherein an output shaft of the first motor and an output shaft of the engine are coaxial and close to each other, and a gap is present between the output shaft of the first motor and the output shaft of the engine, wherein the gap is inside the first clutch and the second clutch.

10 . The system according to claim 9 , wherein an axis of an output shaft of the second motor is parallel to an axis of the output shaft of the first motor, and a length of the output shaft of the second motor is greater than a length of the output shaft of the first motor.

11 . The system according to claim 10 , wherein

an overlapped region is present between an orthographic projection of the power output assembly on a first plane, an orthographic projection of the output shaft of the engine on the first plane, and an orthographic projection of the output shaft of the second motor on the first plane; and

a space is present between the orthographic projection of the power output assembly on the first plane and an orthographic projection of the output shaft of the first motor on the first plane;

wherein the first plane is a plane that runs through the axis of the output shaft of the first motor and is perpendicular to a vertical line between the axis of the output shaft of the second motor and an axis of the output shaft of the engine.

12 . A hybrid electric vehicle, comprising: a hybrid power system, wherein the hybrid power system comprises: a first clutch, a second clutch, an engine, a first motor, a second motor, and a power output assembly; wherein

two ends of the first clutch are respectively connected to the first motor and the engine;

two ends of the second clutch are respectively connected to the first clutch and the power output assembly; and

the second motor is connected to the power output assembly;

wherein the first clutch and the second clutch are disposed in a radial direction of an output shaft of the first motor, and the second clutch is disposed on a side of the first clutch at which the second clutch is away from the output shaft of the first motor; and

further comprising: a housing; wherein

the first motor, the second motor, the first clutch, and the second clutch are all disposed inside the housing, and an arrangement direction of the first motor and the second motor inside the housing is perpendicular to an axis of the output shaft of the first motor; and

the engine is disposed outside the housing, and an output shaft of the engine comprises a power output of the engine and a connection shaft detachably connected to the power output of the engine, wherein the connection shaft is disposed inside the housing and is rotatable relative to the housing, and part of the connection shaft protrudes from the housing.

13 . The hybrid electric vehicle according to claim 12 , wherein

the first clutch comprises a first portion and a second portion, wherein the first portion and the second portion are controllably engaged or disengaged; and

the second clutch comprises a third portion and a fourth portion, wherein the third portion and the fourth portion are controllably engaged or disengaged;

wherein the second portion of the first clutch is connected to the third portion of the second clutch.

14 . The hybrid electric vehicle according to claim 13 , wherein the second portion and the third portion are integrally connected.

15 . The hybrid electric vehicle according to claim 13 , wherein

the first portion is sleeved on an output shaft of the engine, and one end of the second portion is sleeved on the output shaft of the first motor, and the other end of the second portion is disposed on a side of the first portion which is away from the output shaft of the engine and the other end of the second portion is engaged with the first portion; and

the third portion is sleeved on the other end of the second portion, and one end of the fourth portion is connected to the power output assembly, and the other end of the fourth portion is disposed on a side of the third portion which is away from the second portion and the other end of the fourth portion is engaged with the third portion.

16 . The hybrid electric vehicle according to claim 13 , wherein

the first portion is an inner hub of the first clutch, and the second portion is an outer hub of the first clutch;

the third portion is an inner hub of the second clutch, and the fourth portion is an outer hub of the second clutch;

wherein the outer hub of the first clutch and the inner hub of the second clutch are formed by respectively machining splines on an inner wall and an outer wall of a same hub sleeve.

17 . The hybrid electric vehicle according to claim 13 , wherein the power output assembly comprises a hollow shaft, wherein

the hollow shaft is sleeved on an output shaft of the engine and is rotatable relative to the output shaft of the engine;

a length of the hollow shaft is less than a length of the output shaft of the engine, such that an end of the output shaft of the engine protrudes from the hollow shaft and is connected to the first portion; and

the fourth portion is connected to the hollow shaft.

18 . The hybrid electric vehicle according to claim 12 , wherein an output shaft of the first motor and an output shaft of the engine are coaxial and close to each other, and a gap is present between the output shaft of the first motor and the output shaft of the engine, wherein the gap is inside the first clutch and the second clutch.

19 . The hybrid electric vehicle according to claim 18 , wherein an axis of an output shaft of the second motor is parallel to an axis of the output shaft of the first motor, and a length of the output shaft of the second motor is greater than a length of the output shaft of the first motor.