Vehicle carbon tank washing method and device and vehicle

A carbon canister and vehicle technology, applied in the field of vehicle engineering, can solve the problem of low control accuracy of carbon canister flushing, and achieve the effects of improving control accuracy and solving low control accuracy.

Inactive Publication Date: 2019-07-05
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present disclosure is to provide a flushing method, device and vehicle for a vehicle carbon canister, so as to solve the problem of low precision control of carbon canister flushing in the related art

Method used

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  • Vehicle carbon tank washing method and device and vehicle
  • Vehicle carbon tank washing method and device and vehicle
  • Vehicle carbon tank washing method and device and vehicle

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Embodiment Construction

[0057] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0058] In the present disclosure, the structure of the vehicle carbon tank can be as follows figure 2 As shown, the air intake interface of the carbon canister 10 is connected with the gasoline tank 12 through the air intake pipeline 13, activated carbon 11 is stored in the canister 10, the canister 10 is provided with a breathing port 17, and the gas outlet of the canister 10 is The interface communicates with the gas outlet pipeline 14, and the gas outlet pipeline 14 is provided with a concentration sensor 15 and a valve 16, and the valve 16 may be a solenoid valve.

[0059] figure 1It is a flow chart of a method for flushing a vehicle carbon tank shown ...

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Abstract

The invention relates to a vehicle carbon tank washing method and device and a vehicle which are provided for solving the problem that the control accuracy of carbon tank washing is not high in the related technology. The vehicle carbon tank washing method comprises the steps of detecting whether the concentration of oil vapor in a gas outlet pipe communicating with a gas outlet joint of a carbontank exceeds the preset value or not; determining that the vehicle is in a washing condition when the concentration of the oil vapor exceeds the preset value; and turning on a valve on the gas outletpipe to wash the carbon tank.

Description

technical field [0001] The present disclosure relates to the field of vehicle engineering, in particular, to a method, device and vehicle for flushing a vehicle carbon canister. Background technique [0002] Gasoline is volatile, so the fuel tank is often full of fuel vapor at room temperature, and the leakage of this part of fuel vapor accounts for about 20% of the total emissions, which is an important factor affecting vehicle emission control. Therefore, the working ability of the activated carbon canister is very important to the control of vehicle evaporative emissions. [0003] When the fuel pressure in the automobile fuel tank exceeds the opening pressure of the fuel vapor valve and the adsorption valve of the activated carbon tank in the fuel tank, the fuel vapor valve and the adsorption valve of the activated carbon tank will open, and the fuel vapor will enter the activated carbon tank from the relevant path and be absorbed Activated carbon adsorption is stored in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/08F02B77/04
CPCF02B77/04F02B2077/045F02M25/08
Inventor 刘婷王勇
Owner BEIQI FOTON MOTOR CO LTD
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