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Vehicle misfueling mitigation system and method

A vehicle and fuel system technology, applied in vehicle maintenance, vehicle parts, vehicle maintenance/repair, etc., can solve problems such as wrong filling of gasoline, wrong diagnosis, maintenance or replacement, etc.

Inactive Publication Date: 2009-10-07
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

False diagnostics can lead to repair or replacement of non-defective expensive components such as catalysts, fuel injectors, fuel pumps, exhaust oxygen sensors, etc.
Additionally, may cause damage to fuel system or engine components not resistant to high concentrations of alcohol
[0005] Finally, as alcohol-based fuels and alcohol-fueled vehicles become more common than ever, a downside can arise: vehicles designed to run on fuels with high levels of alcohol may be mistakenly refueled

Method used

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  • Vehicle misfueling mitigation system and method
  • Vehicle misfueling mitigation system and method
  • Vehicle misfueling mitigation system and method

Examples

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Embodiment Construction

[0012] figure 1 An exemplary structure of a vehicle component according to the present invention is shown. figure 1 Cylinder 102 is shown with intake valve 104 , spark ignition 106 , fuel injector 108 , exhaust valve 110 , and crank angle sensor 112 . Cylinder 102 may be one of many cylinders in an engine of a vehicle. In this example, at least some fuel enters cylinder 102 via fuel injector 108 . Air is drawn into the cylinder 102 through an intake valve 104 . In some embodiments, fuel may enter the cylinder through an intake valve and a fuel injector. therefore, figure 1 The configuration of the components shown in is intended to enable direct injection and any combination of direct and port injection.

[0013] figure 1 Also shown are air-fuel ratio sensor 114 , fuel tank 116 , refill sensor 118 , fuel composition sensor 120 , and controller 122 . The refill sensor 118 is a device installed within the vehicle and configured to generate an output signal indicative of w...

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PUM

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Abstract

A method is provided to indicate improper fuel filling in a vehicle. An indicator is actuated if a proportion of alcohol in the fuel is outside a range of expected proportions. In some examples, the range corresponds to a non-flex fuel vehicle recommended range, or to a normal range for a low alcohol-content fuel, which may be between 0 and 15 percent alcohol by volume. The indicator may include a diagnostic code or a dash light. Further, the indicator may be actuated in combination with a mitigating action, which may involve adjustment of a fuel injector pulse width or an ignition spark timing, as examples.

Description

technical field [0001] The present invention relates to motor vehicle error diagnosis and mitigation, and more particularly to refueling error diagnosis and mitigation. Background technique [0002] Motor vehicle fuels of different compositions are displayed for sale at a gas station. In particular, fuel mixtures comprising ethanol and gasoline are increasingly used, some of which may be used in conventional gasoline engines, while others may only be used in certain configurations of engines. For example, E85 is a suitable fuel for so-called flex-fuel vehicles (vehicles configured to run on widely varying fuel mixtures). Other blends such as E10 can be used in conventional gasoline engines as long as a suitable homogenous mixture is used. [0003] However, some fuel dispensers rely on splash mixing during fuel delivery to homogenize the fuel mixture. This method does not guarantee uniformity and can result in stratified fuel being supplied to the gas station. Consequentl...

Claims

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Application Information

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IPC IPC(8): B60S5/02
CPCF02D19/0623F02D19/087F02D19/0628B60K2015/03361Y02T10/36F02D2200/0611F02D41/22F02D41/0025F02D19/084F02D19/0665Y02T10/30
Inventor 拉尔夫·韦恩·坎宁安马克·威廉·彼得斯
Owner FORD GLOBAL TECH LLC
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