A single-motor hybrid drive system

Abstract

The invention discloses a series-parallel hybrid power driving system with a single motor. The series-parallel hybrid power driving system with the single motor comprises an engine, the motor, two clutches, a starting mechanism, a gear shifting mechanism and a box, wherein the two clutches comprise a clutch B and a clutch C; a motor casing which is arranged on the box through a bearing can rotate along with a motor stator; the engine is in rigid connection with the motor stator which is connected with a motor rotor through the clutch C in a clutch mode; the motor rotor is in rigid connection with the gear shifting mechanism; and the motor stator is connected with the box through the clutch B in a clutch mode. The series-parallel hybrid power driving system with the single motor has the advantages of solving the problems that the existing series-parallel hybrid power driving system with double motors is complex in structure, large in part number, long in axial dimension, not easy to arrange, low in efficiency and the like, being simple and compact in integral structure, enabling finished automobile arrangement to be easy, being simple to control and being capable of achieving an infinitely variable speed function of the gear shifting mechanism through adjustment of a rotational speed of the motor.

Description

technical field [0001] The invention relates to an automobile power system, specifically a single-motor hybrid hybrid drive system, which belongs to the technical field of hybrid electric vehicles. Background technique [0002] Hybrid electric vehicles refer to vehicle power including traditional internal combustion engine drive and electric drive, which are characterized by fuel saving, environmental protection and economy. As a development direction of the automobile industry, hybrid power is currently a research hotspot in the industry. There are three types of hybrid powertrain configurations: series, parallel and hybrid. The serial form has simple structure and easy control but low efficiency and high cost. The parallel form is generally used for micro-hybrids and medium-hybrids, matching A-class and B-class models, while more advanced passenger cars and higher fuel-efficient hybrid models often use a hybrid form, and the structure of the hybrid form is complex, and t...

AI Technical Summary

Problems solved by technology

In order to realize the power coupling and speed change function, there are mainly two technical routes: one is to use a controllable clutch, the clutch, the power synthesis device, and the transmission are all independent mechanisms. Difficult; the other is the use of planetary gear mechanism, which has a compact structure and convenient layout. The disadvantage is that the engine and motor need to be redesigned according to the structural requirements, and two sets of control systems are required for two motors, which makes selection difficult and complicated control

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