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Control method for hybrid power system

A technology of a hybrid power system and a control method, which is applied in the control field of the hybrid power system, can solve the problems of uneconomical fuel economy and unstable transition, and achieve the effect of improving fuel economy and emission performance.

Active Publication Date: 2015-01-21
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a control method for a hybrid power system, which enables the hybrid power system to enter the pure electric idling mode from the braking energy recovery mode, and this method overcomes the problems of unstable transition and uneconomical fuel in the prior art

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

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Embodiment Construction

[0070] The specific embodiments of the present invention will be described in detail below with reference to the drawings. Similar reference numerals in the drawings are used to mark similar technical features. The following description is only illustrative and exemplary. Although it is described according to the specific embodiments of the present invention, it should be understood that equivalent variations in this embodiment will also fall within the protection scope of the present invention.

[0071] figure 1 It is a block diagram of the hybrid power system of a hybrid vehicle. As can be seen from the figure, the hybrid power system includes a hybrid power 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 The battery controller 41, the high and low voltage inverter 50, the low voltage battery 60 and the vehicle CAN bus ...

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Abstract

The invention relates to a control method for a hybrid power system. The control method comprises the following steps: A) judging if the hybrid power system is under the braking energy recovering mode, if yes, performing the step B), and if not, ending the control; B) judging if the condition for entering into a pure electric idling mode exists, if yes, performing the step C), and if not, returning to the step A); and C) causing the hybrid power system to enter into the pure electric idling mode. The control method provided by the invention has the advantages that the system is smoothly transited to the pure electric idling mode from the braking energy recovering mode, the driving property of a vehicle is ensured, and the economical property and the emission performance of fuel oil are improved.

Description

【Technical Field】 [0001] In summary, the present invention relates to a control method of a hybrid power system; more specifically, the present invention relates to a control method of a hybrid power system from a braking energy recovery mode to a pure electric idle 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 a subject of enthusiasm for research in this field, and they have made considerable progress. Due to the limitations of battery technology, hybrid vehicle technology is more popular. [0003] At present, the control technology for hybrid electric vehicles can already realize the function of braking energy recovery, and subsequently can enter the pure electric idle state of the vehicle. [0004] A Chinese patent application with publication number CN101648523A discloses an electric vehicle braking energy recovery system and its control...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/42B60K6/28B60L7/10
Inventor 张君鸿孟涛王帅宇秦锦冯亚军窦希江
Owner SAIC MOTOR