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Method for determining proper operation of valve in gas tank system

A technology of normal operation, gas tank, applied in the direction of container discharge method, charging system, container filling method, etc., can solve problems such as large cost and time loss, inability to detect valves, inability to open, etc.

Inactive Publication Date: 2019-02-05
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both alternatives result in considerable cost and loss of time
[0004] There is currently no way to detect if the valve fails to open

Method used

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  • Method for determining proper operation of valve in gas tank system
  • Method for determining proper operation of valve in gas tank system
  • Method for determining proper operation of valve in gas tank system

Examples

Experimental program
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Embodiment Construction

[0034] figure 1 A side view of vehicle 100 is shown. In the illustrated embodiment, the vehicle includes a tractor unit 110 and a trailer unit 112 . Vehicle 100 may be a heavy vehicle, such as a truck.

[0035] In one embodiment, no trailer unit is attached to the vehicle 100 . Vehicle 100 may include a gas engine. Vehicles include gas tank systems. The vehicle 100 includes an engine system 299, see figure 2 a. Engine system 299 may be disposed in tractor unit 110 .

[0036] In one embodiment, vehicle 100 is a bus. Vehicle 100 may be any type of vehicle that includes an air tank system. Other examples of vehicles comprising an air tank system are boats, passenger vehicles, construction vehicles and locomotives. The invention can also be used in conjunction with any other platform than a vehicle, as long as the platform includes an air tank system. One example is a power plant with a gas tank system.

[0037] The innovative method and the innovative system according ...

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PUM

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Abstract

The present disclosure relates to a method for determining the proper operation of a valve in a gas tank system. The gas tank system comprises a plurality of gas tank and valve arrangements. Each gastank and valve arrangement comprises a gas tank and at least one valve arranged at a passage downstream said gas tank. The method comprises the steps of opening the valves at the passages in a first set of gas tank and valve arrangements; determining a first pressure value downstream all of said valves which have been opened; closing the passage at all gas tank and valve arrangements, except for one gas tank and valve arrangement; waiting a predetermined amount of time; determining a second pressure value downstream the gas and tank and valve arrangement whose valve(s) have not been closed; and determining whether said at least one valve which has not been closed operates properly based on said first and said second determined pressure value.

Description

technical field [0001] The present application relates to a method for determining the normal operation of a valve in a gas tank system. The invention also relates to a system for determining the normal operation of a valve in a gas tank system, a computer program and a computer program product. Background technique [0002] Vehicles with gas engines, especially vehicles using compressed natural gas CNG as fuel, usually have several gas cylinders as storage tanks. These cylinders are often required by law to be fitted with a valve that automatically closes once the engine is shut off. During gas engine operation, normally all valves of the gas cylinders are open in order to supply gas to the gas engine. However, if the valve fails to open, less fuel is available to the gas engine. [0003] Fuel indications to vehicle drivers assume that all gas in the cylinder is available to the engine. In particular with regard to the calculation of the vehicle's remaining cruising ran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/02B60K15/03F02M21/02F17C13/02F02D41/22
CPCB60K15/03006B60K2015/03013B60K2015/03026B60Y2200/14B60Y2200/142B60K15/03F02D19/023F02D19/025F02D19/027F02D41/0027F02D41/22F02D2200/0602F02M21/0209F02M21/0215F02M21/0224F02M21/023F02M21/0239F02M21/0293F17C13/002F17C13/025F17C2205/0142F17C2205/0326F17C2221/033F17C2223/0123F17C2223/036F17C2250/032F17C2250/036F17C2250/043F17C2260/015F17C2265/066F17C2270/0168Y02T10/30B60K2015/03118F02D2041/224F02M21/0242F17C13/02F17C2250/0434F02D41/221
Inventor M·埃克达尔S·洛斯格伦M·约翰松E·桑尼加德
Owner SCANIA CV AB
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