IP Library Granted Patent US 11,357,224
Granted Patent B2
US 11,357,224 · App. 16/524,862 · Granted Jun 14, 2022

System and method for electronic fluid measurement

Inventors: Aaron Tollefsrud (Willmar, MN); Bruce Bastin (Pennock, MN)
Assignee: CNH Industrial America LLC
A01M7/0089A01M7/0085B60K15/00B60K35/00B60K37/00F01M11/06F16N19/003G01F23/18G01F25/20G07C3/00G07C5/00G07C5/0816B60K2015/03217
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Quick Facts
Patent No.
US 11,357,224
App. No.
16/524,862
Granted
Jun 14, 2022
Kind
B2
Abstract

An agricultural product application implement includes a system and method for indicating an amount of fluid stored. A pressure transducer installed at the sump of a fluid tank electronically measures and displays a fluid depth. Instrumentation, such as an instrument cluster unit for the implement, is programmed via software to convert the voltage output of the pressure transducer to a volume measurement displayed in the operator's line of sight. Software within the instrument cluster unit for self-calibrating accounts for varying densities of different chemical solutions. The pressure transducer is used in conjunction with a transfer medium to prevent corrosive chemical solutions from contacting the pressure transducer.

Claims (9)

1. A method for indicating an amount of fluid stored in a self-propelled agricultural product application implement comprising:

(a) holding a fluid within a tank having an interior volume;

(b) sensing an amount of pressure within the tank resulting from the fluid using a pressure transducer disposed on a base of the interior volume of the tank and communicating a first electrical signal corresponding to the amount of pressure;

(c) determining an amount of fluid within the tank based on the amount of pressure communicated by the first electrical signal and the interior volume, and communicating a second electrical signal corresponding to the amount of fluid;

(d) displaying the amount of fluid within the tank as communicated by the second electrical signal to a display visible by an operator of the implement while the operator is in a forward-facing position; and

(e) providing a transfer medium above the pressure transducer for protecting the pressure transducer from the fluid.

2. The method of claim 1 , further comprising calibrating for different types of fluids having differing densities based on a calibration curve.

3. The method of claim 2 , further comprising providing an input for selecting a type of fluid held within the tank.

4. The method of claim 1 , further comprising sensing a temperature within the interior volume of the tank and determining the amount of fluid based on the temperature sensed from within the tank.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 22, 2022
From: CNH INDUSTRIAL AMERICA LLC
To: BLUE LEAF I.P., INC.
Reel/Frame 061987/0305 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2022
From: TOLLEFSRUD, AARON; BASTIN, BRUCE
To: CNH INDUSTRIAL AMERICA LLC
Reel/Frame 060260/0376 →
Continuity (2)
Division 14558011 · Dec 2, 2014
Related Publication 20190350188A1 · Nov 21, 2019