Detecting the deactivation of a filling device

Patent metadata

Field	Value
Publication number	US-11548377-B2
Application number	US-201816625370-A
Country	US
Kind code	B2
Filing date	Jun 25, 2018
Priority date	Jun 27, 2017
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A method for determining a filling stop during a filling process of an operating fluid container whose operating fluid container interior can be filled with an operating fluid via a filling pipe opening into said interior, wherein a pressure sensor for determining a pressure within the filling pipe is arranged in the filling pipe, wherein the method has the following method steps: acquiring the time profile of pressure values acquired by means of the pressure sensor; and outputting a filling stop signal in accordance with the time profile of the pressure values. In addition, the present invention discloses an operating fluid container system having an operating fluid container and a filling pipe, opening into an operating fluid container interior, for filling the operating fluid container with an operating fluid, wherein the operating fluid container system has a pressure sensor arranged within the filling pipe and is coupled via a data line to an electronic control device for transmitting data, representing the pressure within the filling pipe, to the electronic control device, wherein the control device is designed to carry out the method according to the invention for determining a filling stop.

First claim

What is claimed:

1. An operating fluid container system comprising:
an operating fluid container having an operating fluid container interior; and
a filling pipe for filling the operating fluid container interior with an operating fluid;
wherein the operating fluid container system has a pressure sensor, for determining pressure within the filling pipe, arranged within the filling pipe;
the pressure sensor is coupled via a data line to an electronic control device for transmitting data, representing the pressure within the filling pipe, to the electronic control device;
the control device is configured to perform a method for detecting deactivation of a filling device during a filling process of the operating fluid container whose operating fluid container interior is fillable with the operating fluid via the filling pipe, wherein the method comprises acquiring a time profile of pressure values by the pressure sensor, and outputting a filling stop signal in accordance with the time profile of pressure values; and
wherein the operating fluid container is a gasoline fuel container, a diesel fuel container or a urea container.

2. The operating fluid container system according to claim 1 , wherein the pressure sensor is installed within the filling pipe such that the pressure sensor does not project beyond an inner face of the filling pipe.

3. The operating fluid container system according to claim 1 , wherein the operating fluid container system has a non-return value via which the operating fluid container interior is fluidically connected to the filling pipe.

4. The operating fluid container system according to claim 1 , wherein the method further comprising:
acquiring at least two pressure values within a first time period within the filing pipe by the pressure sensor;
acquiring at least two further pressure values within a second time period, chronologically following the first time period, within the filling pipe by the pressure sensor;
determining a first difference between the at least two pressure values acquired within the first time period;
determining a second difference between the at least two further pressure values acquired within the second time period; and
outputting the filling stop signal if an absolute value of the second difference is lower than an absolute value of the first difference.

5. The operating fluid container system according to claim 1 , wherein the method further comprising:
acquiring a multiplicity of first pressure values within a first time period;
determining a first signal-to-noise ratio on a basis of the multiplicity of first pressure values;
acquiring a multiplicity of second pressure values within a second time period which chronologically follows the first time period;
determining a second signal-to-noise ratio on a basis of the multiplicity of second pressure values; and
outputting the filling stop signal if the second signal-to-noise ratio is larger than the first signal-to-noise ratio.

6. The operating fluid container system according to claim 1 , wherein the method further comprising:
acquiring a multiplicity of first pressure values within a first time period;
acquiring a first frequency spectrum on a basis of the first pressure values;
acquiring a multiplicity of second pressure values within a second time period which chronologically follows the first time period;
acquiring a second frequency spectrum on a basis of the second pressure values; and
outputting the filling stop signal if the second frequency spectrum differs from the first frequency spectrum.

7. The operating fluid container system according to claim 1 , wherein the method further comprising:
ascertaining whether the pressure values have an absolute maximum and an absolute minimum following the absolute maximum at a first time interval; and
outputting the filling stop signal if the first time interval is shorter than a predetermined time period.

8. The operating fluid container system according to claim 1 , wherein the method further comprising:
performing high-pass filtering of the pressure values acquired by the pressure senor; and
outputting the filling stop signal if the high-pass-filtered pressure values undershoot a predetermined lower threshold.

9. The operating fluid container system according to claim 1 , wherein the method further comprising:
performing high-pass filtering of the pressure values acquired by the pressure sensor;
acquiring absolute values of the high-pass-filtered pressure values; and
outputting the filling stop signal if the high-pass-filtered pressure values which have been converted into the absolute values exceed a predetermined upper threshold.

10. The operating fluid container system according to claim 1 , wherein the method further comprising:
performing high-pass filtering of the pressure values acquired by the pressure sensor;
acquiring absolute values of the high-pass-filtered pressure values;
performing low-pass filtering of the pressure values which were firstly high-pass filtered and then converted into the absolute values; and
outputting the filling stop signal if the pressure values which were firstly high-pass filtered and then converted into the absolute values and subsequently low-pass filtered exceed a predetermined upper threshold.

11. An operating fluid container system comprising:
an operating fluid container having an operating fluid container interior; and
a filling pipe for filling the operating fluid container with an operating fluid;
wherein the operating fluid container system has an acceleration sensor mounted on the operating fluid container or on the filling pipe;
the acceleration sensor is coupled via a data line to an electronic control device for transmitting acceleration data to the electronic control device;
the control device is configured to perform a method for detecting deactivation of a filling device during a filling process of the operating fluid container whose operating fluid container interior is fillable with the operating fluid via the filling pipe, wherein the method comprises acquiring a time profile of acceleration values by the acceleration sensor, and outputting a filling stop signal in accordance with the time profile of acceleration values; and
wherein the operating fluid container is a gasoline fuel container, a diesel fuel container or a urea container.

12. The operating fluid container system according to claim 11 , wherein the filling stop signal is output if an acceleration value of the acceleration values exceeds a predetermined acceleration limiting value.

13. An operating fluid container system comprising:
an operating fluid container having an operating fluid container interior; and
a filling pipe for filling the operating fluid container interior with an operating fluid;
wherein the operating fluid container system has a volume flow sensor, for determining a volume flow within the filling pipe, arranged within the filling pipe;
the volume flow sensor is coupled via a data line to an electronic control device for transmitting data, representing volume flow within the filling pipe, to the electronic control device;
the control device is configured to perform a method for detecting deactivation of a filling device during a filling process of the operating fluid container whose operating fluid container interior is fillable with the operating fluid via the filling pipe, wherein the method comprises acquiring a time profile of volume flow values by the volume flow sensor, and outputting a filling stop signal in accordance with the time profile of volume flow values; and
wherein the operating fluid conta

Assignees

• Kautex Textron Gmbh & Co Kg

Inventors

• Wind Stefan
• Barkow Axel

Classifications

• B60K15/04 Primary

  Tank inlets (B60K15/077 takes precedence) · CPC title

• B60K2015/03368

  for preventing overfilling of tanks · CPC title

• B60K2015/049

  Means for determining the position of the filler nozzle in the filler pipe · CPC title

• B60K2015/0321

  characterised by special sensors, the mounting thereof · CPC title

• B60K15/01

  Arrangement of fuel conduits · CPC title