Kinetic system outputting power management of mixed-kinetic automobile

A hybrid electric vehicle and power system technology, which is applied in the field of output power management of the hybrid electric vehicle power system, can solve problems such as torque output complex control theory, achieve good driving feeling and seat comfort, and simplify control theory

Inactive Publication Date: 2007-01-17
FAW GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in parallel hybrid electric vehicles, the engine uses the throttle opening value, and the motor uses the current value to control their respective power outputs. Since the two controlled parameters are not uniform, and the relationship between these two parameters and the torque output value is non-uniform. Linear, so complex control theory is required to achieve a smooth total torque output of the hybrid system

Method used

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  • Kinetic system outputting power management of mixed-kinetic automobile

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] When the vehicle is running, according to the information provided by the vehicle speed sensor and the accelerator pedal opening sensor, the vehicle controller calculates the functional relationship between the total output torque of the hybrid system and the vehicle speed and the accelerator pedal opening value (such as figure 1 shown) to find the total output torque of the hybrid system on the output shaft of the transmission requested by the driver, and then determine the respective torques borne by the engine and the motor according to the engine torque sharing coefficient. Normally, the engine undertakes 100% of the total output torque when the accelerator pedal opening is about 50%. Under the operating condition of the accelerator pedal opening less than about 10%, the electric motor bears 100% of the total output torque. In the working condition of the accelerator pedal opening above 90%, the engine and the motor work together according to the determined torque s...

Embodiment 2

[0034] When the vehicle is running, according to the information provided by the vehicle speed sensor and the accelerator pedal opening sensor, the vehicle controller calculates the functional relationship between the total output torque of the hybrid system and the vehicle speed and the accelerator pedal opening value (such as figure 1 shown) to find the total output torque of the hybrid system on the output shaft of the transmission requested by the driver, and then determine the respective torques borne by the engine and the motor according to the engine torque sharing coefficient. Normally, the engine undertakes 100% of the total output torque when the accelerator pedal opening is about 50%. Under the operating condition of the accelerator pedal opening less than about 10%, the electric motor bears 100% of the total output torque. In the working condition of the accelerator pedal opening above 90%, the engine and the motor work together according to the determined torque s...

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PUM

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Abstract

A managing method for the output power of power system of the car with mixed features that the total output torque on the output axle of speed variator, which is required by the driver, is calculated by the vehicle control unit according to speed and the openness of acceleration pedal, and then is distributed to engine and motor according to the share coefficient of engine.

Description

technical field [0001] The invention relates to a control method for a power system of a hybrid electric vehicle, in particular to a method for managing output power of the power system of a hybrid electric vehicle. Background technique [0002] With the increasingly prominent global environmental and energy issues, the development of new vehicles with low emissions and low fuel consumption has become the primary task of the development of the automotive industry today. Hybrid electric vehicle technology avoids the shortage of battery technology and energy infrastructure of pure electric vehicles. It is a good solution to current problems and has become a hot spot in international automotive research and development. [0003] How to control the power output of the two power sources of the engine and the motor and how to distribute them reasonably is one of the important contents of hybrid electric vehicle research, which directly affects the driving feeling and ride comfort ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W40/12B60K6/02F16H61/32B60K6/20B60W20/10B60W20/40
Inventor 唐志强朱彦文于永坤江国华陈树星王跃建市川耕司吉見秀和松下昌弘龍見哲治伊藤伸一大屋勝則荒川誠
Owner FAW GROUP
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