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Fault processing method and system

A fault handling method and fault technology, applied in the directions of fuel injection control, engine control, machine/engine, etc., can solve problems such as vehicle driving hazards and achieve the effect of ensuring power output

Inactive Publication Date: 2019-11-01
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the failure caused by the failure of components in the high-pressure fuel system will bring different hazards to the driving of the vehicle.

Method used

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  • Fault processing method and system
  • Fault processing method and system

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0023] figure 1 It is a flow chart of a fault handling method provided by the embodiment of the present invention. This embodiment is applicable to the fault diagnosis of each component in the high-pressure fuel system, and the timely classification of fault processing to ensure the power output of the vehicle. The method It can be executed by a fault handling system, wherein the method can be implemented by hardware and / or software, and can generally be integrated in the fault handling system. The fault handling...

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Abstract

The invention discloses a fault processing method and system. The method comprises the following steps of classifying faults based on a fault diagnosis result of each component in a high-pressure fuelsystem; determining a corresponding fault processing strategy according to a fault classification result; and performing failure processing on the component according to the fault processing strategy. According to the fault processing method, after the fault diagnosis result is obtained, the corresponding fault processing strategy can be directly obtained, the harm caused by faults of various components in the high-pressure fuel system is reduced in time, and the vehicle power output is ensured as far as possible on the premise of ensuring the safety of a driver.

Description

technical field [0001] Embodiments of the present invention relate to powertrain control technology, and in particular to a fault handling method and system. Background technique [0002] Gasoline Direct Injection (GDI) technology is a technology that directly injects fuel into the cylinder and mixes with the intake air. Among them, the advantages of GDI technology are low fuel consumption, high power per liter, and a compression ratio of up to 12. Compared with ordinary engines with the same displacement, the power and torque are both increased by 10%. The increase in injection pressure makes the fuel atomization more detailed, which truly realizes the precise proportional control of fuel injection and intake air mixing, and eliminates the disadvantages of out-of-cylinder injection. At the same time, special designs such as nozzle position, spray shape, intake airflow control, and piston top shape enable the fuel and gas to be fully and evenly mixed in the entire cylinder,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22F02D41/38
CPCF02D41/22F02D41/38F02D2041/223F02D2041/224F02D2041/226F02D2041/389
Inventor 李家玲龙立高天宇周鑫宋同好孙超王强
Owner CHINA FIRST AUTOMOBILE
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