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Carbon tank electromagnetic valve diagnosis method, device and equipment and storage medium

A diagnostic method and solenoid valve technology, which is applied in the automotive field, can solve problems such as easy false alarms in diagnostic methods, and achieve the effect of solving prone to false positives and avoiding false positives in diagnosis

Active Publication Date: 2021-02-23
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a carbon tank solenoid valve diagnosis method, device, equipment and storage medium, aiming to solve the technical problem that the carbon tank solenoid valve diagnosis method is prone to false alarms in the prior art

Method used

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  • Carbon tank electromagnetic valve diagnosis method, device and equipment and storage medium
  • Carbon tank electromagnetic valve diagnosis method, device and equipment and storage medium
  • Carbon tank electromagnetic valve diagnosis method, device and equipment and storage medium

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Embodiment Construction

[0046] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0047] refer to figure 1 , figure 1 It is a schematic diagram of the structure of the canister electromagnetic valve diagnostic equipment involved in the hardware operating environment of the embodiment of the present invention.

[0048] Such as figure 1As shown, the canister solenoid valve diagnosis device may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interf...

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Abstract

The invention discloses a carbon tank electromagnetic valve diagnosis method, device and equipment and a storage medium. The method comprises the following steps: diagnosing the line state of a to-be-tested carbon tank electromagnetic valve according to a preset line diagnosis strategy to obtain a line diagnosis result; when the line diagnosis result is that the line is normal, obtaining state parameters of a vehicle where the to-be-tested carbon tank solenoid valve is located; judging whether the state parameters meet preset parameter requirements or not; and when the state parameters meet preset parameter requirements, performing blockage diagnosis on the to-be-tested carbon tank electromagnetic valve according to a preset blockage diagnosis strategy to obtain a blockage diagnosis resultof the to-be-tested carbon tank electromagnetic valve. By means of the mode, when it is determined that the circuit of the carbon tank electromagnetic valve is normal and the vehicle state is normal,blockage diagnosis is conducted on the carbon tank electromagnetic valve, the situation that due to the circuit and other vehicle state problems, diagnosis of the carbon tank electromagnetic valve ismisreported is effectively avoided, and the technical problem that in the prior art, misreporting is likely to occur in a diagnosis mode of the carbon tank electromagnetic valve is solved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a diagnosis method, device, equipment and storage medium for a carbon tank electromagnetic valve. Background technique [0002] With the continuous warming of the world and the depletion of oil resources, the country pays more and more attention to the protection of the environment and energy. If the fuel system of the fuel car has a poor seal, the vapor in the fuel will leak into the atmosphere through the leak hole, causing pollution to the atmosphere and wasting energy at the same time. The carbon canister is a device that can store fuel vapor. It can temporarily store the fuel vapor in the fuel tank, and then desorb it into the atmosphere through the carbon canister desorption system. GB18352-2016 "Light Vehicle Pollutant Emission Limits and Measurement Methods (China's Sixth Stage)" (hereinafter referred to as the National VI Regulations) has higher requirements for the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01R31/52G01R31/54G01R31/56
CPCG01R31/327G01R31/52G01R31/54G01R31/56
Inventor 迟佳男李凯叶宏全温敏吴全军张建伟
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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