US 9,751,372 B2 · System for determining an axle load for an agricultural tractor

Abstract

A system for determining an axle load for an agricultural tractor. The system includes an axle or wheel suspension device arranged on a front axle of the agricultural tractor and has a hydraulic spring strut having a hydraulic cylinder and a hydraulic piston dividing the hydraulic cylinder into an annular space and a piston space. A first pressure sensor detects a first working pressure, which is present in the annular space. A second pressure sensor detects a second working pressure, which is present in the piston space. A control device calculates a front axle load variable which represents an axle load acting on a front axle on the basis of a pressure force difference derived from the first and second working pressures.

Claims14

Dependent claims

A system for determining the axle load for an agricultural tractor, comprising:

a wheel suspension device, arranged on a front axle of the agricultural tractor, the device including a hydraulic spring strut having a hydraulic cylinder and a hydraulic piston dividing the hydraulic cylinder into an annular space and a piston space;
a first pressure sensor configured to detect a first working pressure, which is present in the annular space;
a second pressure sensor configured to detect a second working pressure, which is present in the piston space;
and
a control device configured to calculate, on the basis of a pressure force difference derived from the first and second working pressures, a front axle load variable, which represents an axle load acting on the front axle.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/066,041Filed 10 Mar 2016

Priority

DE 10 2015 206 3699 Apr 2015

Published

US 2016/0297275 A113 Oct 2016

Granted

5 Sep 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

B60G 17/016
The regulating means comprising electric or electronic elements: characterised by their responsiveness, when the vehicle is travelling, to…
B60G 17/018
The regulating means comprising electric or electronic elements: characterised by the use of a specific signal treatment or control method
B60G 17/019
The regulating means comprising electric or electronic elements: characterised by the type of sensor or the arrangement thereof
B60G 17/01941
Characterised by the type of sensor or the arrangement thereof: characterised by the use of piezoelectric elements, e.g. sensors or actuators

System for determining an axle load for an agricultural tractor

Life of this patent

System for determining an axle load for an agricultural tractor

Life of this patent

Abstract

Claims14