Planetary gear type hybrid power system and control method thereof

By adopting a planetary geared hybrid system and switching of multiple power modes in new energy vehicles, the lack of power demand in existing systems in different usage scenarios is solved, and higher power transmission performance and driving comfort are achieved.

CN120207085AActive Publication Date: 2025-06-27ZHENGZHOU XINXING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510343990.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-23
Publication Date
2025-06-27
Estimated Expiration
2045-03-23

AI Technical Summary

Technical Problem

The hybrid systems of existing new energy vehicles are mostly single gears, which cannot meet the power needs of vehicles in different usage scenarios. They are mostly fixed-axle gear transmissions, resulting in power interruption or shifting impacts, affecting driving comfort.

Method used

A planetary gear-type hybrid power system is proposed, including engine, dual motor, planetary row and structural elements. By controlling the planetary gear set and motor, switching of multiple power modes is achieved, reducing the use of brakes and clutches, improving power transmission performance and gear shifting comfort.

Benefits of technology

It realizes the flexibility and efficiency of power output in different car use scenarios, reduces gear shifting impact, improves driving comfort and power transmission performance, and avoids gear shifting and teething problems.

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Abstract

The invention discloses a planetary gear type hybrid power system and a control method thereof, and relates to the technical field of new energy automobile hybrid power transmission systems, the planetary gear type hybrid power system comprises an engine, two groups of motors, two groups of planet rows, a clutch, a brake and a structural element arranged between the planet rows and used for transmitting power; the engine and the two groups of motors are respectively combined and connected with the two groups of planet rows through different structural elements to form a planetary gear type hybrid power transmission system; six driving modes of pure electric driving, engine direct driving, power dividing, parallel driving, braking energy recovery and parking charging can be realized by controlling the working states of the motors, the clutches and the brakes; compared with fixed shaft type gear arrangement, the planetary gear combination reduces use of a gear shifting fork, has the advantages of being compact in structure, high in integration degree, clear in gear shifting logic and larger in torque capacity, and improves the power transmission efficiency of an automobile hybrid power system.
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