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Control method for hybrid system

A technology of a hybrid power system and a control method, which is applied in the control field of a hybrid power system, and can solve problems such as poor fuel economy, unstable transition, and poor driving comfort, and achieve the effects of smooth control, smooth start, and improved comfort

Active Publication Date: 2012-07-04
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a control method for a hybrid power system, which overcomes the problems of unstable transition, poor driving comfort and poor fuel economy in the process from engine start to vehicle idling crawling

Method used

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  • Control method for hybrid system
  • Control method for hybrid system
  • Control method for hybrid system

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Embodiment Construction

[0044] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Similar reference numerals are used in the figures to designate similar technical features. The following description is only illustrative and exemplary. Although it is described according to a specific embodiment of the present invention, it should be understood that equivalent modifications in this embodiment will also fall within the protection scope of the present invention.

[0045] figure 1 A structural block diagram of a hybrid power system of a hybrid electric vehicle capable of executing the control method according to the present invention is schematically shown. As can be seen from the figure, the hybrid system includes a hybrid system control unit 01, an engine 10 and an engine controller 11, a transmission 20 and a transmission controller 21, a hybrid motor 30 and a motor controller 31, a high-voltage battery 40 and a high-voltage A...

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Abstract

The invention relates to a control method for a hybrid system, in particular to a control method for enabling the hybrid system to enter an engine drive mode from an engine shut-down mode. The control method comprises a step of closed-loop control of a hybrid motor. With the adoption of the control method, control is smooth during a process from turning on an engine to the process of enabling the automobile to crawl at an idle speed, the engine is turned on stably, the driving comfortableness is improved, and the economic property and the emission property of the entire automobile are improved.

Description

【Technical field】 [0001] Generally speaking, the present invention relates to a control method of a hybrid power system; more specifically, the present invention relates to a control method of making the hybrid power system enter an engine-driven idle mode from an engine shutdown mode. 【Background technique】 [0002] Due to problems such as urban pollution and energy crisis, environmentally friendly vehicles such as electric vehicles and hybrid vehicles are becoming hot research topics in this field, and have made great progress. Due to the limitation of battery technology, hybrid electric vehicle technology is more favored by people. [0003] At present, the control technology for hybrid electric vehicles can already realize the automatic starting function of the engine, for example, the engine enters the idle state from the starting state. [0004] In the Chinese patent application whose publication number is CN1986309A discloses a kind of starting control method of hybri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/06B60W10/08B60W40/08B60W30/18
CPCY02T10/6286Y02T10/62
Inventor 张君鸿周宇星孟涛邱国茂王帅宇朱明
Owner SAIC MOTOR
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