Power system of strong hybrid electric vehicle

A hybrid electric vehicle and power system technology, applied in the field of hybrid electric vehicles, can solve the problems of increasing energy loss, large drag torque of the power system, and reducing the transmission efficiency of the power system, so as to reduce energy loss and realize energy recovery. , the effect of improving the transfer efficiency

CN109774455APending Publication Date: 2019-05-21CHONGQING TSINGSHAN IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-21

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Abstract

The invention relates to a power system of a strong hybrid electric vehicle. The power system comprises an engine, a driving motor and a speed changer, a drive gear is fixed to a rotation shaft of thedriving motor in the peripheral direction, and a driven gear sleeves the input shaft of the speed changer in an empty set mode and meshes with the drive gear; the output shaft of the engine is connected with the input shaft of the speed changer through a first clutch, the first clutch is a one-way clutch, an outer race of the one-way clutch is fixedly connected with the output shaft of the engine, and an inner race of the one-way clutch is fixedly connected with the input shaft of the speed changer; the driven gear is connected with the input shaft of the speed changer through a second clutch, a drive disk of the second clutch is fixedly connected with the driven gear, and a driven disk of the second clutch is fixedly connected with the input shaft of the speed changer. According to the power system, power transmission is simple and effective, the power transmission efficiency is high, and energy recovery is achieved.
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Description

technical field

[0001] The invention relates to the field of hybrid electric vehicles, in particular to a power system of a strong hybrid electric vehicle. Background technique

[0002] At present, only the hybrid electric vehicle has the most practical value and has been commercially operated. It has good power, low emission, is very beneficial to environmental protection, and has a promising development prospect. According to the degree of dependence on electric energy, hybrid electric vehicles can be divided into weak hybrid, moderate hybrid, strong hybrid and plug-in hybrid. Among them, the power system of a strong hybrid vehicle can make full use of the motor, which can save about 40% of fuel, which is more conducive to energy saving and emission reduction. At present, the power system of a common strong hybrid vehicle consists of an engine, a drive motor, and a transmission. However, because the output shaft of the engine is directly connected to the input shaft of th...

Examples

Embodiment Construction

[0016] see figure 1 , a power system of a strong hybrid electric vehicle, comprising an engine 1, a drive motor 4, and a transmission 8, the rotating shaft 5 of the drive motor 4 is circumferentially fixed with a drive gear 6, and the input shaft 3 of the transmission 8 is idle-slave Driven gear 7, said driven gear 7 meshes with driving gear 6. The power of the driving motor 4 is output from the rotating shaft 5 to drive the driving gear 6 to rotate, thereby driving the driven gear 7 to rotate. The output shaft 2 of the engine 1 is connected with the input shaft 3 of the transmission 8 through the first clutch, the first clutch is a one-way clutch 9, and the outer race of the one-way clutch 9 is fixedly connected with the output shaft 2 of the engine 1, The inner race of the one-way clutch is fixedly connected with the input shaft 3 of the transmission 8 . When the engine 1 was working, the outer race of the one-way clutch 9 was combined with the inner race, and when the eng...