Browse Prior Art Database

USAGE OF POSITIONING INFORMATION FOR DETERMINATION OF CLOUDING POINT FOR FUEL IN VEHICLE

IP.com Disclosure Number: IPCOM000216288D
Publication Date: 2012-Mar-28
Document File: 7 page(s) / 60K

Publishing Venue

The IP.com Prior Art Database

Abstract

According to the present invention, a clouding point (CP) temperature for fuel in a vehicle fuel tank is determined by usage of positioning information, such as information provided by the Global Positioning System (GPS). Based on the positioning information, the geographical location where the vehicle is filled-up with fuel is determined. Then the CP temperature for the fuel in the fuel tank can be determined based on this geographical location and on information of CP temperatures for different types of fuels and for different geographical areas. By this reliable determination of the CP temperature for the fuel in the vehicle, the risk of having particles forming in the fuel due to cold temperatures can be dramatically reduced, since the driver can take countermeasures in time to avoid such particle forming. Hereby the risk of vehicle standstill due to plugged up fuel filters is greatly reduced.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 29% of the total text.

Usage of positioning information for Determination of clouding point for fuel in vehicle

Abstract

According to the present invention, a clouding point (CP) temperature for fuel in a vehicle fuel tank is determined by usage of positioning information, such as information provided by the Global Positioning System (GPS). Based on the positioning information, the geographical location where the vehicle is filled-up with fuel is determined. Then the CP temperature for the fuel in the fuel tank can be determined based on this geographical location and on information of CP temperatures for different types of fuels and for different geographical areas. By this reliable determination of the CP temperature for the fuel in the vehicle, the risk of having particles forming in the fuel due to cold temperatures can be dramatically reduced, since the driver can take countermeasures in time to avoid such particle forming. Hereby the risk of vehicle standstill due to plugged up fuel filters is greatly reduced.


Detailed description

Combustion engines in engine driven vehicles, such as cars, trucks, buses, or tractors, are run on fuel, for example diesel or petrol. If a temperature of the fuel, such as diesel, falls below a certain temperature, also called the clouding point (CP) temperature of the fuel, particles are formed in the fuel. Formation of such particles, which can include paraffin wax crystals, is also known as gelling of the fuel. Such particles may plug e.g. the fuel tank filter, thereby reducing the amount of fuel reaching the engine, which could make the engine stop, and thereby also making the vehicle inoperable.

Low temperatures are relatively common in a number or regions of the World, wherefore a number of solutions for this problem have been presented in the prior art. Known ways of dealing with the gelling problem include adding anti-gelling additives to the fuel and/or heating the fuel by use of fuel heaters.

The CP temperature varies for different types of fuels and also for the same type of fuel in different markets. Thus, different kinds of diesel and petrol often have different CP temperatures. Also, the same type of fuel, for example the same type of diesel, may have different CP temperatures in different geographical areas. Also, the CP temperatures of fuels are traditionally not provided to the consumer of the fuels. Therefore, it is not easy for a driver of a vehicle, or for an owner of a vehicle, to determine when the fuel of a vehicle reaches, or is going to reach, the CP temperature, or to determine if measures against gelling should be applied or not. This leads to a relatively high risk of standstill for a vehicle due to gelling of the fuel when a vehicle is in a cold environment.

According to the present invention, positioning information, such as information provided by the Global Positioning System (GPS), or by another positioning system, is used for determining a geographical location where the vehicle is filled-up with f...