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A hybrid electric vehicle multi-mode coupled four-wheel drive system

A hybrid vehicle and four-wheel drive technology, which is applied to the layout of multiple different prime movers of hybrid vehicles, general power plants, and motor vehicles, etc. , unable to meet the problems of vehicle economic control, etc., to achieve the effect of remarkable dynamic characteristics, strong driving ability, and improved passability

Active Publication Date: 2021-10-01
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first method of coupling the power of the engine and the electric motor and then centralized output cannot achieve independent control of the front and rear drive axles, and cannot meet the needs of power distribution between the front and rear axles of four-wheel drive vehicles and the economic control of the vehicle; the second hybrid system and electric motor The drive mode of independently driving the front and rear drive axles has strict requirements on the performance of the engine and electric motor, and when the power source of one drive axle fails or the drive wheels are trapped, the vehicle can only use the remaining power source and drive axle At this time, the original four-wheel drive vehicle is equivalent to a two-wheel drive vehicle with single storage front or rear drive, and even the driving ability of the power source is weaker than that of a traditional two-wheel drive vehicle

Method used

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  • A hybrid electric vehicle multi-mode coupled four-wheel drive system
  • A hybrid electric vehicle multi-mode coupled four-wheel drive system
  • A hybrid electric vehicle multi-mode coupled four-wheel drive system

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with accompanying drawing:

[0047] Such as figure 1 As shown, the system of the present invention includes a clutch 1, a disc motor 2, a main drive motor 3, a mode switching actuator 4, a transmission assembly 5, a rear drive wheel 6, a rear half shaft 7, and a rear drive axle wheel differential Device 8, rear drive shaft 9, front drive shaft 10, front drive wheel 11, front axle shaft 12, front drive axle wheel differential 13, engine 14; the engine is connected with the disc motor through the clutch, and the disc motor is installed On the casing of the transmission assembly and connected with the input shaft I of the transmission assembly; the main drive motor is installed on the casing of the transmission assembly and connected with the input shaft II of the transmission assembly; the front drive axle inter-wheel differential The front drive shaft is connected to the front output shaft of the trans...

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Abstract

The invention discloses a multi-mode coupling four-wheel drive system of a hybrid electric vehicle, which includes an engine, an electric clutch, a disc motor, a main drive motor, a transmission assembly, a mode switching actuator, a drive axle wheel differential, and a half shaft , Driving wheel. Among them, the transmission assembly can realize the functions of double-sided centralized, double-sided distributed, single-sided centralized and single-sided distributed drive, and the central differential of the transmission assembly is an asymmetrical multi-disc clutch differential. The system can adopt a variety of electromechanical coupling drive modes according to the complex driving conditions of the vehicle and dynamically distribute the driving torque of the front and rear wheels to realize independent front-wheel drive, independent rear-wheel drive, distributed drive of front and rear wheels and centralized front and rear wheels It solves the structural defects and coordination control problems of the existing four-wheel drive system, and greatly improves the power, economy, stability and passability of the vehicle.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a four-wheel drive system of a hybrid electric vehicle which can realize the coupling of centralized driving and distributed driving modes of front and rear wheels. Background technique [0002] In recent years, energy and pollution problems have become increasingly serious, and the development of new energy vehicles has become an inevitable choice for the sustainable development of the automobile industry. Due to the obvious effect of energy saving and emission reduction of hybrid electric vehicles, which will not reduce the power of vehicles and have strong industrialization capabilities, they occupy an important position in new energy vehicles. At present, there are two main driving modes of four-wheel drive hybrid electric vehicles: the first is that the engine and the electric motor output the power in a centralized manner through the electromechanical coupl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/365B60K6/442B60K6/52
CPCB60K6/365B60K6/442B60K6/52Y02T10/62
Inventor 张利鹏杨刘权张思龙刘威王胜
Owner YANSHAN UNIV
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