Operating method for a filter system and filter system

Patent metadata

Field	Value
Publication number	US-10596985-B2
Application number	US-201715690741-A
Country	US
Kind code	B2
Filing date	Aug 30, 2017
Priority date	Aug 30, 2016
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

A filter system for a motor vehicle, such as a car, truck, train, ship includes a filter element for a fluid filter with a wireless identification means having second data about the filter element. A filter housing for the fluid filter in which the filter element is exchangeably arranged and which has a read device for the wireless identification means. A central data base in which third data about the filter element is stored. An evaluation unit configured to retrieve the third data about the filter element from the central data base and to compare them to the second data about the filter element that were obtained from the read device.

First claim

What is claimed is:

1. An operating method for a filter system of a motor vehicle, wherein
the filter system comprises:
a filter element for a fluid filter,
wherein the filter element has a packaging having a second wireless identification means having first data about the filter element, wherein the second wireless identification means is a radio frequency identification (RFID) tag or a barcode, and
wherein the filter element has a first wireless identification means with second data about the filter element;

a filter housing for the fluid filter in which the filter element is exchangeably arranged and which has a read device for reading the first wireless identification means and reading the second wireless identification means; and

an evaluation unit and a memory unit;
wherein the operating method comprises the steps of:
providing the filter element with the packaging having the second wireless identification means;
moving the second wireless identification means towards the read device;
reading the first data about the filter element from the second wireless identification means and importing the first data into the memory unit;
inserting the filter element into the filter housing;
executing a testing method;

wherein the testing method includes the steps of:
retrieving the second data of the first wireless identification means with the read device from the filter element;
comparing the first data and second data in the evaluation unit, producing a comparison result;
when the comparison result is that the second data of the first wireless identification means do not match the first data from the packaging in a prescribed manner,
then outputting a warning and/or preventing operation of the fluid filter;

wherein the testing method further includes the steps of:
determining if an expiration date for the filter element has passed;
when the expiration date has passed then
outputting a warning and/or preventing operation of the fluid filter.

2. The operating method according to claim 1 , wherein before the step of executing a testing method, the operating method further includes the steps of:
initiating starting the motor vehicle;
waiting for the motor vehicle to start.

3. The operating method according to claim 1 , further including the steps of:
detecting if the filter housing has been opened and then closed;
when the filter housing has been opened and then closed, then
executing the testing method.

4. The operating method according to claim 1 , wherein
the filter system further comprises a central database;
wherein the retrieving step of the testing method further includes
retrieving third data about the filter element from the central database, and/or
transmitting the second data to the central database.

5. The operating method according to claim 1 , wherein
the first wireless identification means of the filter element is an RFID tag having the second data about the filter element.

6. The operating method according to claim 1 , wherein
the first wireless identification means is arranged on or inside of a filter medium of the filter element.

7. The operating method according to claim 1 , wherein
the first wireless identification means is arranged on or in an end disk of a filter medium of the filter element, or on or in a sealing element of the filter element.

8. The operating method according to claim 1 , wherein
the evaluation unit and/or the memory unit are embodied in the read device.

9. The operating method according to claim 1 , wherein
the evaluation unit and/or the memory unit are embodied in a control device of a motor vehicle having the fluid filter for the filter system.

10. A filter system for a motor vehicle, comprising:
a memory unit in which data on a filter element can be stored;
a read device;
the filter element being for a fluid filter, the filter element provided with a packaging for the filter element, the packaging with a second wireless identification means having a first data about the filter element, wherein the second wireless identification means is a radio frequency identification (RFID) tag or a barcode;
wherein the read device wirelessly reads first data from the second identification means provided on the packaging of the filter element and imports the first data to the memory unit, wherein the first data includes data about the filter element including a number of a production lot of the filter element;
wherein the filter element has a first wireless identification means having second data about the filter element, the second data including a serial number of the filter element, wherein the second data is retrieved by the read device from the filter element;
a filter housing for the fluid filter in which the filter element is exchangeably arranged and which has the read device;
a central database in which third data about the filter element is stored the third data including at least one of: motor vehicle model and maximum permissible operating time of the filter element; and
an evaluation unit;
wherein the evaluation unit is configured to retrieve the third data about the filter element from the central database and to compare them to the second data about the filter element that were obtained from the read device.

11. The filter system according to claim 10 , wherein
the evaluation unit is furthermore configured to transmit and store data about the filter element to the central database.

Assignees

• Mann & Hummel Gmbh

Inventors

• Franz Andreas

Classifications

• G07C5/008

  communicating information to a remotely located station (transmission systems for measured values G08C) · CPC title

• B01D2201/52

  Filter identification means · CPC title

• G07C5/085

  using electronic data carriers · CPC title

• B01D2201/54

  Computerised or programmable systems · CPC title

• B01D2273/18

  Testing of filters, filter elements, sealings · CPC title