Electric four-wheel drive hybrid power system

A hybrid power system and technology of hybrid power, applied to the arrangement of multiple prime movers of power plants, air pressure power plants, and general power plants, can solve the problems of fuel consumption and high emissions, and achieve high fuel economy and Emission performance, improvement of driving comfort, and effect of saving layout space

Active Publication Date: 2014-12-03
奇瑞新能源汽车股份有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

Although traditional four-wheel drive vehicles have better power and off-road performance than conventional two-wheel drive vehicles, their fuel consumption and emissions are relatively high, which can no longer meet the development requirements of modern

Method used

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  • Electric four-wheel drive hybrid power system
  • Electric four-wheel drive hybrid power system
  • Electric four-wheel drive hybrid power system

Examples

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Example Embodiment

[0023] figure 1 A schematic diagram of the power system of the electric four-wheel drive hybrid vehicle of the present invention is shown, figure 1 Among them, BMS is the battery management system, ECU is the engine control unit, DC / DC is the high and low voltage converter, MCU is the motor controller, TCU is the automatic transmission controller, HCU is the hybrid controller, and GKN is the clutch C3.

[0024] like Figure 1 to Figure 3 As shown, an electric four-wheel drive hybrid power system of the present invention includes a power battery, a front drive unit and a rear drive unit. The front drive unit mainly includes an engine, an ISG (Integrated Started Generator) motor and a CVT transmission. The ISG motor is connected to the engine through the clutch C1, and the ISG motor is connected to the CVT transmission through the clutch C2. The clutch C1 is used to control the separation and separation of the ISG motor and the engine. Combined, the clutch C2 is used to contro...

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Abstract

The invention discloses an electric four-wheel drive hybrid power system which comprises a power battery, a front driving unit and a rear driving unit, wherein the front driving unit comprises an engine and an ISG motor, and further comprises a CVT transmission; the ISG motor is connected with the engine through a clutch C1; the ISG motor is connected with the CVT transmission through a clutch C2; the clutch C1 is used for controlling the separation and combination of the ISG motor and the engine; the clutch C2 is used for controlling the separation and combination of the ISG motor and CVT transmission. The hybrid power system adopting the front driving unit, the double clutches and the CVT transmission to form power coupling has the advantages that the working modes such as independent working of the ISG motor, and parallel connection work of the engine and the ISG motor are realized by controlling the clutches; the working modes of pure electric mode, parallel connection driving mode, running power generation mode, series connection power generation mode and four-wheel driving mode can be realized by controlling the work of a rear driving motor; the fuel economy and emission performance are higher.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, in particular, the invention relates to an electric four-wheel drive hybrid power system. Background technique [0002] With the progress of society, people's awareness of environmental protection has increased, and the "low-carbon, environmentally friendly, green" travel mode has gradually attracted great attention. High-efficiency, environment-friendly and energy-saving hybrid electric vehicles have attracted great attention from various automobile manufacturers in the world. [0003] With the further aggravation of energy crisis and environmental deterioration, energy saving and environmental protection have become the themes of modern automobile development. Although traditional four-wheel drive vehicles have better power and off-road performance than conventional two-wheel drive vehicles, their fuel consumption and emissions are relatively high, which can no longer meet the...

Claims

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Application Information

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IPC IPC(8): B60K6/387B60K17/12
Inventor 肖小城王春丽肖岩
Owner 奇瑞新能源汽车股份有限公司
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