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A hybrid system, a hybrid vehicle, and a hybrid driving method

A technology of a hybrid power system and a driving method, which is applied to hybrid vehicles, motor vehicles, power plants, etc., and can solve the problems that the power supply cannot replenish power in time, cannot realize serial working conditions, and vehicles stop and go.

Active Publication Date: 2017-08-22
TIANJIN QINGYUAN ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for motor vehicles driving in the city, due to serious traffic jams, the vehicles stop and go, and sometimes the speed of the vehicle is difficult to reach the level required for output power shunting, and the power supply on the vehicle cannot replenish the power in time
Therefore, the series working condition is still necessary for hybrid vehicles, but the above two hybrid systems cannot realize the series working condition

Method used

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  • A hybrid system, a hybrid vehicle, and a hybrid driving method
  • A hybrid system, a hybrid vehicle, and a hybrid driving method
  • A hybrid system, a hybrid vehicle, and a hybrid driving method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Such as figure 1 As shown, a hybrid power system of the present invention includes an internal combustion engine 1, including a front sun gear 15, a front planetary carrier 14 and a front planetary row of the front ring gear 6, including a rear sun gear 12, a rear planetary carrier 13 and a rear The rear planetary row of the ring gear 7, the first motor 2 connected to the front sun gear 15 of the front planetary row, the second motor 10 connected to the rear ring gear 7 of the rear planetary row, the front ring gear 6 of the front planetary row and the rear The rear sun gear 12 of the planet row is connected, the output end of the internal combustion engine 1 is connected with the front planet carrier 14 of the front planet row, the rear planet carrier 13 of the rear planet row is connected with the system output shaft 11, and the front sun gear Link 15 is connected with the front lock-up clutch 3 that locks or releases the front sun gear 15, and the front sun gear 15 c...

Embodiment 2

[0194] A hybrid vehicle with a hybrid power system of the present invention uses the hybrid power system described in Embodiment 1, and the system output shaft 11 of the hybrid power system is connected to the driving axle 17 of the hybrid power vehicle.

[0195] Below in combination with the various modes described in the embodiments, the operation mode of the vehicle is introduced:

[0196] First of all, when the vehicle is in the hot state before the vehicle is running, the b1 charging mode can be used, the middle lock-up clutch is locked, and the energy generated by the internal combustion engine rotating when the vehicle is hot can be supplemented by the first motor to the power supply. Then the vehicle starts, and you can choose to use the a1 low-speed pure electric mode. Because it involves the starting process, the torque is slightly larger, and the second motor outputs power to directly drive the vehicle without going through the process of increasing the speed and red...

Embodiment 3

[0206] Such as Figure 27Shown, a kind of hybrid power system comprises internal combustion engine 1, front planetary row, rear planetary row, first motor, second motor, the output end of internal combustion engine is connected with front sun gear 15 of front planetary row, and the front planetary row of front planetary row The frame 14 is connected with the first motor 2 and locked or released by the front lock-up clutch 3 , and the front planetary carrier 14 can be locked on the planetary transmission housing or released to rotate freely under the action of the front lock-up clutch 3 . The front ring gear 6 of the front planetary row is connected with the rear sun gear 12 of the rear planetary row, and the rear sun gear is locked or released by the middle lockup clutch 16, and the rear sun gear 12 can be locked at The planetary transmission housing is either released to rotate freely. The rear planetary carrier 13 of the rear planetary row is connected to the system output ...

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PUM

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Abstract

The invention discloses a hybrid power system, a hybrid power vehicle and a hybrid driving method. The hybrid power system comprises an internal combustion engine, a front planetary line, a rear planetary line, a first motor and a second motor. The front planetary line comprises a front sun gear, a front planetary carrier and a front gear ring. The rear planetary line comprises a rear sun gear, a rear planetary carrier and a rear gear ring. The first motor is connected with the front sun gear of the front planetary line. The second motor is connected with the rear gear ring of the rear planetary line. The front gear ring of the front planetary line is connected with the rear sun gear of the rear planetary line. The output end of the internal combustion engine is connected with the front planetary carrier of the front planetary line. The rear planetary carrier of the rear planetary line is connected with an output shaft of the system. The front sun gear is connected with a front lockup clutch which is used for locking or releasing the front sun gear. The rear sun gear is connected with a middle lockup clutch used for locking or releasing the rear sun gear. The rear gear ring is connected with a rear lockup clutch used for locking or releasing the rear gear ring. A mode clutch is arranged between the rear gear ring and the rear planetary carrier. According to the hybrid power system, the hybrid power vehicle and the hybrid driving method, multiple hybrid power working conditions including the series working condition can be achieved, and the adaptability to different traveling conditions and requirements is improved.

Description

technical field [0001] The present invention relates to hybrid powertrains. In particular, it relates to a hybrid system, a hybrid vehicle and a hybrid driving method. Background technique [0002] Faced with the current situation of energy shortage and increasingly serious environmental pollution, hybrid electric vehicles are currently the most effective energy-saving vehicle solutions, and their power systems have three forms: series, parallel and hybrid. The series connection can achieve the optimal control of the internal combustion engine, but all the energy will be converted twice, and the loss is relatively large; the parallel connection can achieve better transmission efficiency, but the mechanical connection between the internal combustion engine and the output shaft cannot ensure that the internal combustion engine is always in a better working area ; Hybrid connection can combine the advantages of series connection and parallel connection, and avoid the disadvant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/44B60K6/365
CPCY02T10/62
Inventor 刘英泽
Owner TIANJIN QINGYUAN ELECTRIC VEHICLE