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Controlling Vehicle Refueling Operations

A fuel supply and vehicle technology, applied in electrical control, vehicle maintenance, vehicle components, etc., can solve problems such as fuel pump failures

Active Publication Date: 2021-03-02
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No one will notice that the EVAP system is throttled, or that the fuel pump is in failure mode

Method used

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  • Controlling Vehicle Refueling Operations
  • Controlling Vehicle Refueling Operations
  • Controlling Vehicle Refueling Operations

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0056] introduce

[0057] exist figure 1 A system 10 for controlling refueling operations of a first vehicle is shown in FIG. System 10 includes a first vehicle, one or more second vehicles, one or more refueling locations 14 , and a server 16 , where the first vehicle and the second vehicles are collectively referred to as vehicles 12 . The refueling location 14 includes one or more fuel pumps 30 .

[0058]During refueling operations, a fuel level sensor 22 in the first vehicle generally continuously monitors the fuel level in the fuel tank 20 and provides fuel level data to a computer 24 in the first vehicle. "Substantially continuous" is defined here as a sufficiently high sampling rate that enables evaluation of resulting data regarding the occurrence of an overpressure shutdown event, as described below. For example, if an overpressure shutdown event lasts a minimum of 100 ms and the system wishes to measure the length of the overpressure shutdown event with + / - 10% ac...

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PUM

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Abstract

A computer for a vehicle is programmed to receive fuel level data for a period of time during refueling operations. Based on the fuel level data, the computer determines that fuel flow during a portion of the refueling operation is significantly reduced relative to other portions of the refueling operation. The computer is programmed to output a failure mode based on the determination.

Description

technical field [0001] The invention relates to the field of refueling operation control. Background technique [0002] In vehicles, evaporative emission control (EVAP) systems are sometimes restricted, ie blocked or partially blocked, which causes pressure to build up in the fuel tank during refueling operations. The buildup of pressure can cause the fuel pump to shut down prematurely and repeatedly, causing inconvenience and oscillations to the user. Fuel pumps and refueling locations can also have failure modes such as failed pressure sensors, too high fuel pressure, which can cause the fuel pump to shut down prematurely. Some vehicles include sensors to detect this unwanted pressure buildup, which allows the vehicle to alert the user of the restricted state of the EVAP system. However, some vehicles do not include this sensor, and in vehicles that do, the sensor may malfunction. Further, in the case of autonomous vehicles, refueling can take place without an operator....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B67D7/04B67D7/30B67D7/32B67D7/34B67D7/58G01F9/00
CPCB67D7/04B67D7/30B67D7/3218B67D7/3272B67D7/344B67D7/58G01F9/00B60K2015/03217B67D2007/0461G07C5/0808B60K2015/03197B60K15/03B60K2015/03203G07C5/008B60S5/02B60W50/0205F02D19/025F02D41/22B60K2015/03019G05D1/0217
Inventor 艾德·M·杜达尔
Owner FORD GLOBAL TECH LLC