Multi-degree-of-freedom power gear-shifting parallel form hybrid power multi-gear speed changing box

Abstract

The invention belongs to the technical field of power transmission and particularly relates to a hybrid power multi-gear speed changing box. The multi-degree-of-freedom power gear-shifting parallel form hybrid power multi-gear speed changing box is characterized in that power of an engine is input to an engine input shaft through a rear input shaft of a clutch; a motor module comprises a motor and a speed reducing planet row; the rotary speed of the motor is accelerated by the speed reducing planet row. A main box module of the speed changing box is composed of a multi-degree-of-freedom fixed shaft gear mechanism, and can be used for coupling power of an engine and the motor and realizing five gears matched with the engine and three gears matched with the motor. A secondary box module of the speed changing box can be used for realizing high-gear and low-gear gears, and commonly work with a main box input module of the speed changing box to realize nine gears matched with the engine and five gears matched with the motor. According to the hybrid power multi-gear speed changing box, power gear shifting is realized and the power performance of vehicles is improved; the gear-shifting quality is improved, the abrasion of the clutch is reduced and the fuel oil economical efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of power transmission, and in particular relates to a hybrid multi-speed gearbox. Background technique [0002] Hybrid technology has the advantages of reducing emissions and fuel consumption, and at the same time can improve vehicle dynamic performance, becoming the future development direction of automotive power transmission technology. In the parallel hybrid technology, the motor mainly realizes the boosting under the rapid acceleration condition or the low-speed engine condition, improves the power performance, and improves the fuel economy of the engine; under the deceleration condition, the braking energy recovery is realized; Under these conditions, pure electric drive conditions can be realized. Compared with the series hybrid technology, which is more suitable for low-speed urban vehicles with frequent start-stop conditions, the parallel hybrid technology is more suitable for commercial vehicles, ...

AI Technical Summary

Problems solved by technology

[0004] There is a power interruption during the shifting process of the traditional manual transmission, which affects the power of the car

The transmissions in the patent CN100570174C and the patent CN101782146B realize the power shift design through the mechanical mechanism, but during the shifting process, the mutual cooperation of the mechanical mechanism is required, and it is difficult to realize the hybrid function

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