公开(公告)号：US20190248228A1

公开(公告)日：2019-08-15

申请号：US15772784

申请日：2016-12-02

Applicant: Scania CV AB

Inventor： Mårten WALLENGREN ,  Erik KLINGBORG ,  Svante LÖTHGREN ,  Christian WESSEL

IPC: B60K15/03 ,  B60K15/035

CPC classification number: B60K15/03006 ,  B60K15/035 ,  B60K15/03519 ,  B60K2015/03026 ,  B60K2015/03585 ,  F02D19/02 ,  F02D19/025 ,  F02D19/027 ,  F02D41/0027 ,  F02D2041/1433 ,  F02D2041/228 ,  F02M21/02 ,  F02M21/0221 ,  F02M21/0287 ,  F02M21/0293 ,  F17C5/00 ,  F17C7/00 ,  F17C2201/0104 ,  F17C2201/056 ,  F17C2203/032 ,  F17C2203/0391 ,  F17C2203/0629 ,  F17C2205/0308 ,  F17C2221/012 ,  F17C2221/014 ,  F17C2221/03 ,  F17C2221/033 ,  F17C2221/035 ,  F17C2223/0161 ,  F17C2223/047 ,  F17C2225/045 ,  F17C2227/0302 ,  F17C2227/0393 ,  F17C2250/032 ,  F17C2250/034 ,  F17C2250/0426 ,  F17C2250/043 ,  F17C2250/0439 ,  F17C2250/0473 ,  F17C2250/0491 ,  F17C2250/0495 ,  F17C2260/026 ,  F17C2260/035 ,  F17C2265/03 ,  F17C2265/066 ,  F17C2270/0105 ,  F17C2270/0173 ,  F17C2270/0176 ,  F17C2270/0178 ,  G01F23/14 ,  Y02T10/32

Abstract: The present invention relates to a method, system, vehicle, and computer program product for determining time data relating to a non-combustion outlet process of a fuel gas from a gas tank associated with a vehicle. The method comprises providing a model for the state of fuel gas in the gas tank. The method further comprises determining time data relating to the outlet process of the fuel gas based on the model.

公开(公告)号：US20190128205A1

公开(公告)日：2019-05-02

申请号：US16309758

申请日：2017-06-19

Applicant: Scania CV AB

Inventor： Mårten ECKERDAL ,  Svante LÖTHGREN ,  Magnus JOHANSSON ,  Erik SUNNEGÅRDH

IPC: F02D41/22 ,  B60K15/03 ,  F02D19/02 ,  F02M21/02 ,  F17C13/02

Abstract: Disclosed is a method for determining operation of a valve in a gas tank system comprising a plurality of gas tank and valve arrangements, each comprising a gas tank and at least one valve arranged at a passage downstream said gas tank. The method comprises: opening the valves at the passages in a first set of gas tank and valve arrangements; determining a first pressure value at a gas transportation arrangement downstream all of said opened valves; closing the passage at all gas tank and valve arrangements, except for one gas tank and valve arrangement; waiting a pre-determined amount of time; determining a second pressure value at said gas transportation arrangement downstream the gas and tank and valve arrangement whose valve have not been closed; and determining whether said at least one valve which has not been closed operates properly based on said first and second determined pressure values.

公开(公告)号：US20190323443A1

公开(公告)日：2019-10-24

申请号：US16309966

申请日：2017-05-19

Applicant: Scania CV AB

Inventor： Svante LÖTHGREN

IPC: F02D41/00 ,  F02D19/02 ,  F02M21/02 ,  F02P5/15

Abstract: The present disclosure relation relates to a system and method for controlling a gas engine, wherein the gas engine is supplied with a fuel gas which consists of different molecules and which is stored in at least a gaseous phase and a liquid phase in a gas storage device. The system comprises means for determining from which of its liquid or gaseous phase the fuel gas is taken out of the gas storage device. The system further comprises means for adapting the control of the gas engine in case it is determined that the phase from which the fuel gas is taken out of the gas storage device has changed.