Hybrid power drive device based on mechanical automatic speed-changer

Abstract

A hybrid driving device based on a mechanical automatic transmission, which is provided with a brake, two clutches, a four-speed mechanical automatic transmission, and a planetary gear mechanism. The four-speed mechanical automatic transmission is composed of constant mesh gear pairs O, P, Q , R, synchronizer M, N, shafts G, H, output end, and gears C, D and gears E, F meshing gear pair, the motor is connected to gear D, and is connected to shaft H through clutch B. The internal combustion engine is connected to the sun gear through the clutch A, and the fuel power source drive, electric power source drive, or hybrid power source drive mode switching is realized by controlling the clutches A, B, and brake; the fuel power source drive is realized by controlling the synchronizers M and N Switching of four gears, or switching of four gears driven by an electric power source, or switching of four gears of hybrid driving. The invention has the advantages of compact structure, more modes and more gears in a certain mode.

Description

technical field [0001] The invention relates to a power drive device, in particular to a hybrid drive device based on a mechanical automatic transmission. Background technique [0002] Due to the current increasingly tense world energy and people's growing awareness of environmental protection, the requirements for vehicle safety, energy saving, and environmental protection are getting higher and higher. However, due to the bottleneck constraints of fuel cells, motors, and controls, pure electric vehicles and fuel cell vehicles cannot be mass-produced and practically used. Therefore, hybrid vehicles have become a more suitable choice to solve the above problems. [0003] Developing a good transmission system is the first step in the research and development of hybrid electric vehicles, so the method of power synthesis and the choice of structural form are directly related to the performance of future vehicles. From the point of view of the current domestic hybrid electric v...

AI Technical Summary

Problems solved by technology

From the point of view of the current domestic hybrid electric vehicle transmission system, most of them only modify the drive system on the original vehicle, and most of the modified drive systems are in the form of series and parallel connections. The layout is not compact, and there are few working modes. The economy, emissions and power are limited, and it is difficult to meet the requirements of vehicles with large loads and large load changes

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