Hybrid four-gear transmission adopting double long-wheelbase motors

Abstract

The invention discloses a hybrid four-gear transmission adopting double long-wheelbase motors. The transmission comprises a solid input shaft, a hollow input shaft, double clutches, an output shaft, adifferential, a first transmission mechanism and a second transmission mechanism, wherein the first transmission mechanism is arranged between the solid input shaft and the output shaft; and the second transmission mechanism is arranged between the hollow input shaft and the output shaft. The transmission further comprises a first motor and a second motor, wherein the first motor is connected with the differential through the second transmission mechanism, the second motor is directly connected with the differential, and the first motor and the second motor adopt high-speed high-efficiency long-wheelbase motors with the same wheelbase. According to the transmission, the two motors are arranged between the two ends of the solid input shaft in the axial direction, and the first motor is asclose to the input shafts as possible in the radial direction, so that the position of the differential is approximate to the position of a traditional transmission, the space change of an auxiliary frame of the whole vehicle is avoided as much as possible, and the length of a short half shaft of the differential is ensured to ensure the design and configuration of the included angle of a ball cage.

Description

technical field [0001] The invention relates to the technical field of hybrid vehicles, in particular to a hybrid four-speed transmission adopting double long-wheelbase motors. Background technique [0002] At present, among new energy vehicles in my country, hybrid vehicles are developing most rapidly. A hybrid vehicle is a vehicle that uses multiple energy sources, usually a conventional engine using liquid fuel and an electric motor using electrical energy to propel the vehicle. Hybrid vehicles can be driven in multiple modes. The hybrid transmission at this stage can generally perform operating modes such as engine independent drive, electric motor independent drive, and engine and electric motor simultaneous drive. [0003] The hybrid four-speed transmission in the prior art is realized by adding a driving motor to the existing transmission on the premise of minimal modification to the existing transmission. However, this form of hybrid transmission has the following ...

AI Technical Summary

Problems solved by technology

However, this form of hybrid transmission has the following problems: (1) Due to the position restrictions of the differential, input shaft, etc., and the unreasonable layout of the transmission mechanism, the additional drive motor and auxiliary motor adopt two different models, One is a high-speed, high-efficiency motor, and the other is a high-torque, low-speed motor, which leads to high production costs for the entire transmission; (2) Using 2 or more output shafts, plus an additional drive motor, will The appearance profile of the entire transmission is greatly changed, and the new motor is closer to the cab, so that when the vehicle collides, the transmission will flip to the cab, thereby pressing the steering tube and destroying the steering system, which will greatly reduce the safety of the vehicle

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