Active transmission device for hybrid electric vehicle

Abstract

The invention relates to an active transmission device for a hybrid electric vehicle. The device comprises an axis fixed gear transmission, a transmission electronic control gear shift operating mechanism, a clutch and an electric operating mechanism thereof, an electronic control unit, a main driving motor and a synchronous mechanism, wherein the driving part of the clutch is connected with a vehicle engine flywheel, and the driven part of the clutch is connected with the front end of an input shaft of the axis fixed gear transmission; the main driving motor is connected with the synchronous mechanism; the synchronous mechanism and the tail end of the input shaft or an output shaft of the axis fixed gear transmission are separated from each other to cut off power or meshed with each other to synchronously rotate; and the electronic control unit controls the control unit of the main driving motor, the electronic control gear shift operating mechanism and the operating mechanism of the synchronous mechanism through electrical signals. The active transmission device for the hybrid electric vehicle solves the problem of power interruption in the transmission gear shift process; the synchronous mechanism has the advantages of compact structure, low cost, reliability and durability; the motor rotor structure reduces the rotational inertia of the motor, saves materials and improves the power density; and the device is convenient to assemble and disassemble.

Description

technical field [0001] The invention relates to an automobile transmission device, in particular to an active transmission device for a hybrid electric vehicle. Background technique [0002] Among the main types of transmissions in the field of traditional automobile transmission technology, fixed-axis manual transmission (MT) has high transmission efficiency, convenient manufacturing and processing, low cost and high reliability, so it has always been the mainstream technology in the domestic vehicle transmission market. However, MT has some problems in the operation and use of the vehicle, especially in special driving conditions such as starting on a slope. Compared with other types of transmissions, it is inconvenient to operate; in addition, poor timing of shifting will increase fuel consumption and engine wear. The operator's operation burden is heavy. In the known art, it is proposed to replace the manual shift operation with an automatically operated shift mechanism...

AI Technical Summary

Problems solved by technology

However, it still cannot completely solve the problem of power interruption during the shifting process.

[0007] A comprehensive comparison of other similar known technical solutions shows that in the existing solutions, the problem of power interruption and the complicated structure of the separation and coupling device are more prominent in the modification plan for the fixed axis gearbox

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