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Power system of oil-electricity four-drive hybrid electric vehicle and control method thereof

A hybrid electric vehicle and power system technology, applied in the field of power system, can solve the problems such as the inability to give full play to the driving advantages of the motor and the engine, the complex structure of the power hybrid and the transmission device, and the lack of the motor-driven driving function, and achieve good driving performance. , to avoid emissions, to ensure the effect of torque output

Active Publication Date: 2013-05-01
海博瑞德(重庆)汽车动力控制系统有限公司
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AI Technical Summary

Problems solved by technology

Most parallel hybrid electric vehicles mix the power of the internal combustion engine and the electric motor at the input end of the transmission, and output the mixed power of the engine and the electric motor to the drive shaft through the gearbox to drive the front wheels of the vehicle. And the structure of the transmission device is more complex, and the cost of modification and testing is higher
In addition, the main function of the ISG motor, which is commonly used in the drive system of hybrid electric vehicles, is to drive the car forward at a relatively low speed through the motor at the start-up stage, and at the same time drive the engine to start quickly, so this hybrid electric vehicle does not have The driving function driven by a single motor cannot give full play to the driving advantages of the motor and engine under their respective suitable conditions

Method used

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  • Power system of oil-electricity four-drive hybrid electric vehicle and control method thereof
  • Power system of oil-electricity four-drive hybrid electric vehicle and control method thereof
  • Power system of oil-electricity four-drive hybrid electric vehicle and control method thereof

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Embodiment Construction

[0056] Such as figure 1 As shown, the mechanical parts of the gasoline-electric four-wheel drive hybrid power system provided by the present invention mainly include an engine, an automatic shift mechanism (transmission), a motor, an electromagnetic clutch, a final drive, a front drive wheel, a rear drive wheel, and an instrument panel. The engine is connected to the front drive wheel (or the rear drive wheel) through an engine transmission mechanism composed of a transmission and the like to form the power source of the front drive wheel. After the motor is connected through a motor transmission mechanism composed of an electromagnetic clutch and a final drive The drive wheel (if the engine is connected to the rear drive wheel, then the front drive wheel) constitutes the power source of the rear drive wheel, so that the front drive and the rear drive are independent of each other and can be controlled separately to achieve separate motor drive, separate Different drive me...

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Abstract

The invention relates to a power system of an oil-electricity four-drive hybrid electric vehicle and a control method thereof. The system takes a motor and a dynamo as impendent power sources for driving front driving wheels and rear driving wheels of a vehicle respectively, adopts a motor controller to control the motor to operate, adopts a dynamo controller to control the dynamo to operate, andadopts a whole vehicle controller to control the dynamo controller and the motor controller to operate; according to equipment parameters and operating parameters of the vehicle, the whole vehicle controller determines a drive mode of the vehicle and the switching among different drive modes; and a control mode comprises a self-check mode, a pure motor drive mode, a pure dynamo drive mode, a motor single drive mode, a dynamo single drive mode, a motor-dynamo double-drive mode and a power failure mode. The power system can farthest exert the advantages of the motor and the dynamo, meets requirements under different conditions, and achieves the aims of reducing operating expense, saving energy and protecting environment.

Description

technical field [0001] The invention relates to a power system of an oil-electric four-wheel-drive hybrid vehicle, and also relates to a control method of the power system, which belongs to the hybrid vehicle technology. Background technique [0002] With the increasing demand for environmental protection and the increasing shortage of non-renewable resources such as petroleum, many automobile manufacturers are paying more and more attention to the research and development of energy-saving and emission-reducing models. Various hybrid vehicles are gradually coming out. Under the background of existing technologies, The four-wheel-drive hybrid vehicle can meet the needs of energy and environmental protection to the greatest extent, so it has more market prospects. The configurations of hybrid electric vehicle power systems developed at present include series, parallel and hybrid. Most parallel hybrid electric vehicles mix the power of the internal combustion engine and the el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/52B60W20/00B60W20/20
CPCY02T10/6265Y02T10/62
Inventor 陈超李惠惠张虹龙帆李洁
Owner 海博瑞德(重庆)汽车动力控制系统有限公司
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