Cold start method and system for flexible fuel vehicle

A flexible fuel and cold start technology, applied in the field of cold start methods and systems of flexible fuel vehicles, can solve the problems of battery feeding, long waiting time for starting, etc., so as to achieve cold start, improve atomization effect, and reduce power consumption. Effect

Active Publication Date: 2013-01-02
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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AI Technical Summary

Problems solved by technology

Due to the large amount of air or fuel that needs to be heated, the battery needs a large amount of electric energy to supply the heater, which is easy to cause the battery to feed power, and it takes a long time for the engine to heat up before starting, resulting in a long waiting time for starting

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  • Cold start method and system for flexible fuel vehicle
  • Cold start method and system for flexible fuel vehicle
  • Cold start method and system for flexible fuel vehicle

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Embodiment Construction

[0032] In order to make the above objects, features and advantages of the invention more obvious and easy to understand, the specific implementation manners of the invention will be described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0034] see figure 1 , is a schematic flow chart of a flexible fuel vehicle cold start method of the present invention. The flow of the cold start method is as follows:

[0035] Step 1: Collect the temperature measured by the coolant sensor.

[0036] Step 2: Determine whether the coolant temperatur...

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Abstract

The invention provides a cold start method and a cold start system for a vehicle, in particular for a flexible fuel vehicle. The method comprises the following steps: acquiring a temperature measured by a cooling liquid sensor; judging whether the temperature of cooling liquid is lower than a cold start temperature; electrifying a heating type fuel injector when the temperature of the cooling liquid is lower than the cold start temperature; acquiring the temperature of the heating type fuel injector; lowering the heating power of the heating type fuel injector when the temperature of the heating type fuel injector rises to a predetermined temperature; and turning off the heating type fuel injector. The cold start method and the cold start system have the advantages of energy conservation and fastness, and implement the cold start for a normal gasoline fuel vehicle and the flexible fuel vehicle in a low-temperature environment.

Description

technical field [0001] The invention relates to a cold start method and system for an automobile, in particular to a cold start method and system for a flexible fuel automobile. Background technique [0002] The production resources of alcohol fuels are very rich, which can be synthesized from raw materials such as coal, natural gas, wood and garbage, or can be synthesized with H 2 and CO 2 synthesis. Flexible fuel refers to a fuel formed by mixing alcohol fuel and gasoline in a certain proportion. The alcohol fuel here usually refers to methanol and ethanol. As a new type of clean fuel, flexible fuel is the focus of the development of renewable energy. Its advantages are as follows: high octane number, good anti-knock performance; high oxygen content, which is conducive to full combustion; can effectively dredge the precipitation and condensation of fuel impurities; It can effectively reduce vehicle exhaust emissions and improve energy structure; it is convenient for sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N19/04F01P11/16F02M31/125
CPCF02D41/064F02M31/125F02N19/02Y02T10/12
Inventor 靳素华刘青林高伟李杰王先瑞胡俊勇何博
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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