Torque control method for hybrid power vehicle

A hybrid vehicle, torque control technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as unfavorable drivability and fuel economy, unfavorable hybrid vehicle torque accurate control, disadvantage, etc.

Active Publication Date: 2012-10-31
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this control method is that there are relatively few hybrid vehicle modes, which is not conducive to precise control of hybrid vehicle torque, which is not conducive to better driving performance and fuel economy of the vehicle, and is not conducive to better reduction of emissions

Method used

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  • Torque control method for hybrid power vehicle
  • Torque control method for hybrid power vehicle

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Embodiment Construction

[0052] Figure 1-2 and the following description describe alternative embodiments of the invention to teach those skilled in the art how to make and reproduce the invention. In order to teach the technical solutions of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that modifications or substitutions from these embodiments will fall within the protection scope of the present invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As such, the invention is not limited to the alternative embodiments described below, but only by the claims and their equivalents.

[0053] figure 1 A power system of a belt-driven parallel hybrid vehicle is shown, the power system includes: an engine 1, a first motor 2, a hydraulic torque converter 3a, an automatic transmission 3, a high-voltage battery 4, an engi...

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Abstract

The invention discloses a torque control method for a hybrid power vehicle. A hybrid power vehicle controller is coupled with an engine controller, a speed changer controller, a motor controller, a battery controller, a brake antilock controller and a vehicle body controller through a vehicle local area network bus in a communication way so as to realize the torque control method. The torque control method comprises the following steps: judging current hybrid power mode of the hybrid power vehicle; determining a vehicle required torque and current torques related with an engine and a motor; determining target torques of the engine and the motor according to the current hybrid power mode, the vehicle required torque and the current torques related with the engine and the motor; and after the engine controller and the motor controller receive the target torques of the engine and the motor distributed by the hybrid power vehicle controller, controlling the engine and the motor to gradually achieve the respective target torques. The method has the advantages of low cost, better control accuracy, better fuel economy and easier matching with the vehicle.

Description

【Technical field】 [0001] The invention relates to a torque control method of a hybrid electric vehicle. In particular, the present invention relates to a torque control method for a parallel hybrid vehicle. 【Background technique】 [0002] While vehicles bring convenience to people, they also bring about two major problems: energy consumption and environmental pollution. For this reason, major vehicle manufacturers have released energy-saving and environmentally friendly hybrid vehicles with internal combustion engines combined with electric motors. Hybrid vehicles include two types: series and parallel. The power system of a series hybrid vehicle includes an engine, a generator and an electric motor. Regardless of the operating conditions of this series hybrid vehicle, the electric motor will eventually drive the wheels. The power system of a parallel hybrid vehicle includes an engine and a motor. The engine and the motor can drive the vehicle independently or in the form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/08B60W10/06B60W10/10B60W10/18B60W10/26B60W40/10B60W20/15B60W20/16
CPCY02T10/6286Y02T10/62
Inventor 周宇星朱军马成杰赵沂邱国茂孔令安邓晓光姜辛张鹏君
Owner SAIC MOTOR
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