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Method for actuating a dosing valve, tank ventilation system, and motor vehicle

A technology of exhaust system and metering valve, applied in the direction of electrical control, charging system, engine control, etc., can solve problems such as large extra load, negative impact of storage tank exhaust system, large quality risk, etc.

Pending Publication Date: 2021-10-01
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even the frequency ranges that can be used in this way impose a great additional load on the valves through switching cycles in the range of hundreds of millions
Many other measures are problematic because they negatively affect other requirements of the tank venting system
New developments are in principle investment-intensive and involve significant quality risks

Method used

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  • Method for actuating a dosing valve, tank ventilation system, and motor vehicle
  • Method for actuating a dosing valve, tank ventilation system, and motor vehicle
  • Method for actuating a dosing valve, tank ventilation system, and motor vehicle

Examples

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Embodiment Construction

[0053] figure 1 An internal combustion engine 1 with further components, a tank 10 with further components and a tank venting system 100 according to one exemplary embodiment are shown. These constituents and others will be described below. In particular, the component shown can be part of a motor vehicle according to one exemplary embodiment.

[0054] Internal combustion engine 1 is a conventional internal combustion engine of a motor vehicle. In particular, this can be an Otto engine, since the components described below can be used particularly advantageously in Otto engines. However, it can also be another internal combustion engine.

[0055] An injection rail 2 is mounted on the internal combustion engine 1 , and the injection rail is in turn connected to an intake duct 3 . The intake pipe 3 is connected with an air filter 4 .

[0056] The internal combustion engine 1 is also connected to an exhaust system 5 , to which an oxygen sensor 6 is connected. Oxygen sensor ...

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Abstract

The technology disclosed here relates to a method for actuating a dosing valve (150) of a tank ventilation system (100), wherein the dosing valve (150) is opened not only once but twice at every activation time, and thus a generated pressure wave is depleted. The technology disclosed here furthermore relates to an associated tank ventilation system (100) and to an associated motor vehicle.

Description

technical field [0001] The technology disclosed herein relates to a method for controlling a metering valve of a tank vent system connected between a filter of the tank vent system and an engine intake port. The technology disclosed herein also relates to an associated tank vent system and an associated motor vehicle. Background technique [0002] It is known that gasoline tends to release relevant amounts of gaseous constituents even at mild temperatures. In order to dissipate the resulting pressure so that the integrity of the tank is not threatened, a tank vent system connected to ambient air is usually provided. But because the fuel often contains hydrocarbons that are harmful to the environment and health, filtering of the escaping airflow is required. For this purpose, activated carbon filters are usually used, which, due to their large surface area, can absorb hydrocarbons or other harmful gaseous substances. [0003] However, it is also known that the typical abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/035F02M25/08
CPCB60K15/03504B60K2015/03514B60K2015/03561F02M25/0836B60Y2306/09F02M25/089F02D41/003F02M25/0809
Inventor M·科尼希S·普劳恩
Owner BAYERISCHE MOTOREN WERKE AG
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