1. The utility model provides an integrated form double row planet indulges and puts hybrid device, includes engine (1) and first motor (2), its characterized in that: the planetary gear coupling mechanism comprises a first planetary gear row (3) and a second planetary gear row (4), the first planetary gear row (3) comprises a first sun gear (5), a first planetary gear (6) and a planet carrier (7), the second planetary gear row (4) comprises a second sun gear (8) and a second planetary gear (9), the second sun gear (8) is connected with the first motor (2) through a motor input shaft (10), the motor input shaft (10) is hollow, the first sun gear (5) penetrates through the motor input shaft (10) through a first input shaft (11) to be connected with the engine (1), an electromagnetic locking clutch (12) is fixedly connected with an output end of the planet carrier (7), the other end of the electromagnetic locking clutch (12) is connected with a gear ring (13), and the gear ring (13) is in constant meshing connection with the first planetary gear (6) and the second planetary gear (9), and a brake (14) capable of braking the gear ring (13) is arranged on the gearbox shell.

2. The integrated double row planetary longitudenal hybrid device according to claim 1, wherein: the planetary gear set further comprises a second motor (15), and the planetary carrier (7) is connected with the second motor (15) through a second input shaft (16).

3. The integrated double row planetary longitudenal hybrid device according to claim 2, wherein: the first input shaft (11) penetrates through the motor input shaft (10) and is connected with an electromagnetic clutch (17), the other end of the electromagnetic clutch (17) is connected with a torsional damper (19) through a third input shaft (18), and the torsional damper (19) is connected with the engine (1).

4. A method of operating an integrated double row planetary tandem hybrid as claimed in claim 3, wherein: the electromagnetic clutch (17) is closed, the first motor (2) is sequentially transmitted to the second sun gear (8), the second planet gear (9) and the gear ring (13) through the motor input shaft (10), the gear ring (13) is input to the first planet row (3), when the planet carrier (7) is locked at the wheel edge, the output of the first sun gear (5) is sequentially transmitted to the first input shaft (11) and the electromagnetic clutch (17), the torsional damper (19) is driven, and the function of starting the engine (1) is achieved;

the engine (1) does not work, the electromagnetic clutch (17) is closed, the first motor (2) is sequentially transmitted to the second sun gear (8), the second planet gear (9) and the gear ring (13) through the motor input shaft (10), at the moment, the gear ring (13) is input to the first planet row (3), the engine (1) locks the first sun gear (5), the planet carrier (7) outputs, and double-motor output of the first motor (2) and the second motor (15) is achieved;

the first motor (2) does not work, the brake (14) brakes the gear ring (13), the electromagnetic clutch (17) is closed, the engine (1) is sequentially transmitted to the second input shaft (16), the first input shaft (11) and the first sun gear (5) through the torsional vibration damper (19), and is output through the planet carrier (7) after being transmitted to the first planet gear (6), so that torque-increasing output of the engine (1) is realized;

the first motor (2) does not work, the brake (14) brakes the gear ring (13), the electromagnetic clutch (17) is closed, the electromagnetic locking clutch (12) is closed, the engine (1) is transmitted to the second input shaft (16), the first input shaft (11) and the first sun gear (5) through the torsional vibration damper (19), and at the moment, the gear ring (13), the planet carrier (7) and the first planet gear (6) are locked and connected into a whole, so that the direct gear output of the engine (1) is realized;

the first motor (2) and the engine (1) do not work, and the second motor (15) drives the planet carrier (7) to output or realize a reverse gear function through the third input shaft (18).

Background

The hybrid electric vehicle is used as an important component of an energy-saving and new energy vehicle, the planet row type series-parallel hybrid electric vehicle is provided with a plurality of power sources, and the coordination work of all the components is an important target of the whole vehicle control.

Meanwhile, the planet row type series-parallel hybrid electric vehicle has the characteristic of decoupling the rotating speed and the torque of the engine from the rotating speed and the torque of the vehicle, and can flexibly adjust the working point of the engine in a region with higher efficiency.

However, the existing planet row hybrid power device is still insufficient in the whole vehicle mode, and the oil consumption is still reduced.

Disclosure of Invention

The invention aims to provide an integrated double-planet-row longitudinally-arranged hybrid power device and an operation method thereof, which aim to overcome the defects of the prior art, have compact structure, realize all functions of running, backing, energy recovery and the like of a hybrid power vehicle, and realize the oil saving rate of the whole vehicle up to 25-35%.

In order to achieve the aim, the integrated double-planet-row longitudinal hybrid power device comprises an engine, a first motor and a planet gear coupling mechanism, the planetary gear coupling mechanism comprises a first planet row and a second planet row, the first planet row comprises a first sun gear, a first planet gear and a planet carrier, the second planet row comprises a second sun wheel and a second planet wheel, the second sun wheel is connected with the first motor through a motor input shaft, the motor input shaft is hollow, the first sun gear passes through the motor input shaft through the first input shaft and is connected with the engine, the output end of the planet carrier is fixedly connected with an electromagnetic locking clutch, the other end of the electromagnetic locking clutch is connected with a gear ring, the gear ring is in constant meshed connection with the first planet wheel and the second planet wheel, and a brake capable of braking the gear ring is arranged on the gearbox shell.

Preferably, the planetary carrier is connected with the second motor through a second input shaft.

Preferably, the first input shaft is connected with an electromagnetic clutch through the motor input shaft, the other end of the electromagnetic clutch is connected with a torsional vibration damper through a third input shaft, and the torsional vibration damper is connected with the engine.

According to the operation method of the integrated double-planet-row longitudinally-arranged hybrid power device, the electromagnetic clutch is closed, the first motor is sequentially transmitted to the second sun gear, the second planet gear and the gear ring through the motor input shaft, the gear ring is input to the first planet row at the moment, when the planet carrier is locked at the wheel edge, the output of the first sun gear is sequentially transmitted to the first input shaft and the electromagnetic clutch, the torsional vibration damper is driven, and the function of starting the engine is achieved;

when the engine does not work, the electromagnetic clutch is closed, the first motor is sequentially transmitted to the second sun gear, the second planet gear and the gear ring through the motor input shaft, the gear ring is input into the first planet row at the moment, the engine locks the first sun gear, the planet carrier outputs, and double-motor output of the first motor and the second motor is realized;

the first motor does not work, the brake brakes the gear ring, the electromagnetic clutch is closed, the engine is sequentially transmitted to the second input shaft, the first input shaft and the first sun gear through the torsional vibration damper, and is output through the planet carrier after reaching the first planet gear, so that the torque-increasing output of the engine is realized;

the first motor does not work, the brake brakes the gear ring, the electromagnetic clutch is closed, the electromagnetic locking clutch is closed, the engine is transmitted to the second input shaft and the first input shaft to the first sun gear through the torsional vibration damper, and the gear ring, the planet carrier and the first planet gear are locked and connected into a whole at the moment to realize direct gear output of the engine;

the first motor and the engine do not work, and the second motor drives the planet carrier to output or realize a reverse gear function through the third input shaft.

Compared with the prior art, the invention has the following advantages:

1. the multi-mode remixing of the whole vehicle can be realized, and all functions of running, backing, energy recovery and the like of the hybrid vehicle are realized;

2. the oil saving rate can be 25-35%;

3. the engine power can realize multi-gear transmission.

Drawings

Fig. 1 is a schematic structural diagram of an integrated double-planet-row longitudinal hybrid power device of the invention.

The components in the figures are numbered as follows:

the planetary gear set comprises an engine 1, a first motor 2, a first planetary gear set 3, a second planetary gear set 4, a first sun gear 5, a first planetary gear 6, a planet carrier 7, a second sun gear 8, a second planetary gear 9, a motor input shaft 10, a first input shaft 11, an electromagnetic lock clutch 12, a gear ring 13, a brake 14, a second motor 15, a second input shaft 16, an electromagnetic clutch 17, a third input shaft 18 and a torsional damper 19.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1, the integrated double-planet-row longitudinally-arranged hybrid power device of the invention comprises an engine 1, a first motor 2 and a planet gear coupling mechanism, wherein the planet gear coupling mechanism comprises a first planet row 3 and a second planet row 4, the first planet row 3 comprises a first sun gear 5, first planet wheel 6 and planet carrier 7, second planet row 4 includes second sun gear 8 and second planet wheel 9, second sun gear 8 passes through motor input shaft 10 and is connected with first motor 2, motor input shaft 10 cavity, first sun gear 5 passes motor input shaft 10 through first input shaft 11 and is connected with engine 1, the output rigid coupling of planet carrier 7 has electromagnetism lock-up clutch 12, the other end of electromagnetism lock-up clutch 12 is connected with ring gear 13, ring gear 13 is connected with first planet wheel 6 and the constant mesh of second planet wheel 9, be equipped with the stopper 14 that can carry out the braking to ring gear 13 on the gearbox housing.

In addition, the planetary carrier 7 is connected with a second motor 15 through a second input shaft 16, and the second motor 15 is further included.

In this embodiment, the first input shaft 11 is connected to an electromagnetic clutch 17 through the motor input shaft 10, the other end of the electromagnetic clutch 17 is connected to a torsional damper 19 through a third input shaft 18, and the torsional damper 19 is connected to the engine 1.

The operation method of the integrated double-planet-row longitudinal hybrid power device comprises the following working conditions:

when the electromagnetic clutch 17 is closed, the first motor 2 is sequentially transmitted to the second sun gear 8, the second planet gear 9 and the gear ring 13 through the motor input shaft 10, the gear ring 13 is input to the first planet row 3, and when the planet carrier 7 is locked at the wheel edge, the output of the first sun gear 5 is sequentially transmitted to the first input shaft 11 and the electromagnetic clutch 17 to drive the torsional damper 19, so that the function of starting the engine 1 is realized;

when the engine 1 does not work, the electromagnetic clutch 17 is closed, the first motor 2 is sequentially transmitted to the second sun gear 8, the second planet gear 9 and the gear ring 13 through the motor input shaft 10, at the moment, the gear ring 13 is input into the first planet row 3, the engine 1 locks the first sun gear 5, the planet carrier 7 outputs, and double-motor output of the first motor 2 and the second motor 15 is realized;

the first motor 2 does not work, the brake 14 brakes the gear ring 13, the electromagnetic clutch 17 is closed, the engine 1 is sequentially transmitted to the second input shaft 16, the first input shaft 11 and the first sun gear 5 through the torsional vibration damper 19, and then is output through the planet carrier 7 after reaching the first planet gear 6, so that the torque-increasing output of the engine 1 is realized;

the first motor 2 does not work, the brake 14 brakes the gear ring 13, the electromagnetic clutch 17 is closed, the electromagnetic locking clutch 12 is closed, the engine 1 is transmitted to the second input shaft 16, the first input shaft 11 and the first sun gear 5 through the torsional vibration damper 19, and the gear ring 13, the planet carrier 7 and the first planet gear 6 are locked and connected into a whole at the moment to realize the direct gear output of the engine 1;

the first motor 2 and the engine 1 do not work, and the second motor 15 drives the planet carrier 7 to output or realize a reverse gear function through the third input shaft 18.

In the invention, the power coupling of the engine 1 and the motor is realized through the double planetary rows, and the large torque output of the engine 1 is realized; compared with the traditional ring gear output of the planet row, the planetary gear set realizes the output of the planet carrier 7.

The integrated double-planet-row longitudinally-arranged hybrid power device and the operation method thereof can realize multi-mode remixing of the whole vehicle and realize all functions of running, backing, energy recovery and the like of the hybrid power vehicle; the oil saving rate can be 25-35%; and the power of the engine 1 can realize multi-gear transmission.