An input-split two-speed transmission system for a hybrid vehicle and the vehicle

A technology for a hybrid vehicle and a transmission system, applied in the field of hybrid vehicles, can solve the problems of difficult layout, poor robustness, complex structure, etc., and achieve the effects of improving economy, easy layout, and improving operating efficiency
CN112046267BActive Publication Date: 2022-04-01XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2022-04-01

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Abstract

The invention belongs to the technical field of automobile hybrid power, and in particular relates to an input-splitting two-speed transmission system for a hybrid automobile and the automobile. An input-split two-speed transmission system for a hybrid vehicle, comprising an engine, an electric motor, a starter generator, a clutch, a brake, a planetary gear train, a reduction mechanism, and a differential; the clutch includes a motor clutch; the brake includes Engine brake and motor brake; the planetary gear train includes sun gear, planetary gear, planet carrier and ring gear; the engine is connected to the planet carrier through the engine brake, and the motor is connected to the ring gear through the motor clutch and motor brake. The integrated generator is connected to the sun gear through a single-speed ratio gear; the output torque of the inner ring gear is coupled with the torque of the motor, and then transmitted to the wheels through the reduction mechanism and the differential. The invention can reduce fuel consumption and emission while ensuring the performance of the whole vehicle, and is easy to arrange.
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Description

technical field

[0001] The invention belongs to the technical field of automobile hybrid power, and in particular relates to an input-splitting two-speed transmission system for a hybrid automobile and the automobile. Background technique

[0002] Under the background of severe environmental pollution caused by automobile exhaust, declining oil reserves and rising oil prices, the manufacturing industry began to search for suitable energy sources to replace gasoline and diesel to drive vehicles, so as to improve the energy structure. As a transitional model from fuel vehicles to electric vehicles, hybrid electric vehicles use electric motors to level the peaks and fill valleys of engine output power, which can significantly reduce energy consumption and emissions while ensuring the power of fuel vehicles.

[0003] A well-designed drivetrain is the basis for low-emission, high-efficiency hybrid vehicles. The serial hybrid electric vehicle decouples the engine speed through th...

Claims

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