Fuel filter diagnostic system and filter cartridge

• US 8,655,542 B2
• Filed: 05/22/2012
• Issued: 02/18/2014
• Est. Priority Date: 05/23/2011
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Narisako, Hideki, Kikutani, Takashi, Takeuchi, Katsuhiko
• Primary Examiner(s): Black, Thomas
• Assistant Examiner(s): PAIGE, TYLER D
• Application Number:
  US13/477,124
• Publication Number:
  US 20120303204A1
• Time in Patent Office: 637 Days
• Field of Search: 701/29.6, 701/29.1, 235/492
• US Class Current: 701/29.6
• CPC Class Codes: B01D 2201/291 End caps
• CPC Class Codes: B01D 2201/4046 Means for avoiding false mounting of different parts
• CPC Class Codes: B01D 2201/56 Wireless systems for monitoring the filter
• CPC Class Codes: B01D 29/036 ring shaped
• CPC Class Codes: B01D 36/005 Liquid level sensing means, e.g. for water in gasoil-filters
• CPC Class Codes: F02D 2041/224 Diagnosis of the fuel system
• CPC Class Codes: F02D 41/22 Safety or indicating devices for abnormal conditions in air/fuel ratio feedback systems F02D41/1495, in electric control linkage F02D11/107, in purge control systems F02M25/0809
• CPC Class Codes: F02D 41/2435 characterised by the writing medium, e.g. bar code
• CPC Class Codes: F02M 37/24 characterised by water separating means
• CPC Class Codes: F02M 37/28 with means activated by the presence of water, e.g. alarms or means for automatic drainage
• CPC Class Codes: F02M 37/32 characterised by filters or filter arrangements
• CPC Class Codes: F02M 37/40 with means for detection of clogging
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

An electronic tag is attached to a filter cartridge, which includes a filter. The electronic tag stores individual product information of the filter and wirelessly transmits the individual product information. A wireless receiver device is installed to a predetermined location of a vehicle, which is other than the filter cartridge and receives the individual product information transmitted from the electronic tag. A diagnostic device diagnoses whether the individual product information is received by the wireless receiver device or whether the filter cartridge installed in the vehicle has a desired filtering performance based on contents of the individual product information received by the wireless receiver device.

Claims

1. A fuel filter diagnostic system for a vehicle that has a filter cartridge, which includes a filter adapted to filter foreign objects contained in fuel used in an internal combustion engine of the vehicle, the fuel filter diagnostic system comprising:

an electronic tag that is attached to the filter cartridge and includes;

a storage device that stores individual product information of the filter; and

a wireless transmitter device that wirelessly transmits the individual product information;

a wireless receiver device that is installed to a predetermined location of the vehicle, which is other than the filter cartridge and receives the individual product information transmitted from the electronic tag; and

a diagnostic device that diagnoses whether the individual product information is received by the wireless receiver device or whether the filter cartridge installed in the vehicle has a desired filtering performance based on contents of the individual product information received by the wireless receiver device, wherein;

when the diagnostic device diagnoses that the filter cartridge does not have the desired filtering performance, the diagnostic device limits an output of the internal combustion engine below a predetermined value.

2. The fuel filter diagnostic system according to claim 1, wherein:

the individual product information includes genuine product identification information, which indicates that the filter cartridge is a genuine product; and

the diagnostic device diagnoses that the filter cartridge does not have the desired filtering performance in a case where the individual product information received by the wireless receiver device does not contain the genuine product identification information.

3. The fuel filter diagnostic system according to claim 1, wherein:

the storage device is a rewritable nonvolatile memory;

the individual product information includes history information, which indicates a service history of the filter cartridge; and

the diagnostic device diagnoses that the filter cartridge does not have the desired filtering performance when the diagnostic device determines that the filter cartridge has been used at least for a predetermined time period based on the history information received by the wireless receiver device.

4. The fuel filter diagnostic system according to claim 1, wherein:

the storage device is a rewritable nonvolatile memory;

the fuel filter diagnostic system further comprising a used product information recording device, which is installed in the vehicle at a predetermined location that is other than the filter cartridge;

the used product information recording device records used product information, which indicates that the filter cartridge is a used product, in the storage device to include the used product information in the individual product information in a case where the vehicle is driven while using the filter cartridge;

the individual product information includes individual product identification information of the filter cartridge; and

the diagnostic device diagnoses that the filter cartridge does not have the desired filtering performance in a case where the individual product information, which is currently received by the wireless receiver device, does not coincide with the individual product information, which is previously received by the wireless receiver device, and the individual product information includes the used product information.

5. A fuel filter diagnostic system for a vehicle that has a filter cartridge, which includes a filter adapted to filter foreign objects contained in fuel used in an internal combustion engine of the vehicle, the fuel filter diagnostic system comprising:

an electronic tag that is attached to the filter cartridge and includes;

a storage device that stores individual product information of the filter; and

a wireless transmitter device that wirelessly transmits the individual product information;

a wireless receiver device that is installed to a predetermined location of the vehicle, which is other than the filter cartridge and receives the individual product information transmitted from the electronic tag; and

a diagnostic device that diagnoses whether the individual product information is received by the wireless receiver device or whether the filter cartridge installed in the vehicle has a desired filtering performance based on contents of the individual product information received by the wireless receiver device, wherein;

the vehicle has a receiving case that receives the filter cartridge and forms a fuel passage, which is a part of a fuel supply path extending from a fuel tank to the internal combustion engine in the vehicle; and

the wireless receiver device is installed to the receiving case.

6. The fuel filter diagnostic system according to claim 5, wherein the wireless receiver device is installed in the receiving case in an immersed state where the wireless receiver device is immersed in fuel in the fuel passage.

7. A fuel filter diagnostic system for a vehicle that has a filter cartridge, which includes a filter adapted to filter foreign objects contained in fuel used in an internal combustion engine of the vehicle, the fuel filter diagnostic system comprising:

an electronic tag that is attached to the filter cartridge and includes;

a storage device that stores individual product information of the filter; and

a wireless transmitter device that wirelessly transmits the individual product information;

a wireless receiver device that is installed to a predetermined location of the vehicle, which is other than the filter cartridge and receives the individual product information transmitted from the electronic tag; and

a diagnostic device that diagnoses whether the individual product information is received by the wireless receiver device or whether the filter cartridge installed in the vehicle has a desired filtering performance based on contents of the individual product information received by the wireless receiver device, wherein;

the vehicle has a receiving case that receives the filter cartridge and forms a fuel passage, which is a part of a fuel supply path extending from a fuel tank to the internal combustion engine in the vehicle; and

the electronic tag is attached to the receiving case in an immersed state where the electronic tag is immersed in fuel in the fuel passage.

8. A fuel filter diagnostic system for a vehicle that has a filter cartridge, which includes a filter adapted to filter foreign objects contained in fuel used in an internal combustion engine of the vehicle, the fuel filter diagnostic system comprising:

an electronic tag that is attached to the filter cartridge and includes;

a storage device that stores individual product information of the filter; and

a wireless transmitter device that wirelessly transmits the individual product information;

a wireless receiver device that is installed to a predetermined location of the vehicle, which is other than the filter cartridge and receives the individual product information transmitted from the electronic tag; and

a diagnostic device that diagnoses whether the individual product information is received by the wireless receiver device or whether the filter cartridge installed in the vehicle has a desired filtering performance based on contents of the individual product information received by the wireless receiver device, wherein;

the vehicle has a receiving case that receives the filter cartridge and forms a fuel passage, which is a part of a fuel supply path extending from a fuel tank to the internal combustion engine in the vehicle; and

the electronic tag is installed to a center location of a bottom surface of the filter cartridge, which is configured into a cylindrical tubular body or a circular cylinder body; and

the wireless receiver device is installed to a corresponding location of the receiving case, which is opposed to the electronic tag.