Electric coupling apparatus of hybrid power machine with dual-coupling mode

Abstract

The invention discloses a double coupling mode hybrid electromechanical coupling device, which comprises a gearbox body, an input shaft, an output shaft, a middle shaft and a reversing shaft which are arranged in the gearbox body, and change gear drive units among the input shaft, the output shaft, the middle shaft and the reversing shaft. The double coupling mode hybrid electromechanical coupling device is characterized in that a two-way output electric generator / motor is arranged in the gearbox body, one end of the output shaft of the two-way output electric generator / motor is connected with a first engaging and disengaging gear, the output shaft of the first engaging and disengaging gear and the input shaft or the middle shaft of the gearbox are formed into a transmission coupling chain through a driving device, the other end of the output axle of the two-way output electric generator / motor is connected with a second engaging and disengaging gear, and the output shaft of the second engaging and disengaging gear and the output shaft of the gearbox are formed into a transmission coupling chain through the driving device. The double coupling mode hybrid electromechanical coupling device adopts the engaging and disengaging gear with simple structure to realize the coupling of the device with the input shaft or the middle shaft of the gearbox or with the output shaft of the gearbox, and can realize the switching among various operating conditions, among the sizes of transmitting energy of each operating condition mode, and among operating condition modes according to the requirements. The device has the advantages that the structure is simple and compact, the volume is small, the spatial arrangement is convenient, and the cost is low.

Description

technical field [0001] The invention belongs to a hybrid power transmission device, in particular to a hybrid electromechanical coupling device of a double coupling mode. Background technique [0002] A hybrid electric vehicle couples the energy of two power sources to meet the requirements of different working conditions. Various existing power coupling devices, some of which are based on the principle of planetary gears, realize the power coupling of internal combustion engines and motors by utilizing multiple degrees of freedom of planetary gears. The disadvantages are complex structures, high costs, and difficulty in popularization. Some are power coupled through clutches and conventional gear mechanisms. The disadvantages are that the integration is not high, the volume is large, and the application is limited. Invention patent application ZL02138754.0, a gearbox for hybrid electric vehicles, announced an intermediate shaft coupling scheme, and utility model patent ZL2...

AI Technical Summary

Problems solved by technology

These two typical solutions have their own advantages and disadvantages, but they cannot take into account the fuel economy, power and drivability of the vehicle well.

Among them, the intermediate shaft coupling scheme has the problems of power interruption and small braking energy feedback when shifting gears. The output shaft coupling scheme cannot realize fast start and stop of the engine, it is difficult to use pure electric power, the torque amplification of the motor is limited, and the energy of the motor and the engine is limited. Allocation optimization is limited and other issues

Images