AGRICULTURAL WORKING MACHINE

• US 20090030581A1
• Filed: 07/16/2008
• Published: 01/29/2009
• Est. Priority Date: 07/27/2007
• Status: Active Grant

• Current Assignee: Claas Selbstfahrende Erntemaschinen GmbH (CLAAS KGaA mbH)
• Original Assignee: Claas Selbstfahrende Erntemaschinen GmbH (CLAAS KGaA mbH)
• Inventors: Immer, Daniel, Pollklas, Manfred
• Granted Patent: US 8,321,093 B2
• Time in Patent Office: Days
• US Class Current: 701/50
• CPC Class Codes: A01D 41/127 Control or measuring arrangements specially adapted for combines
• CPC Class Codes: A01D 43/085 Control or measuring arrangements specially adapted therefor
• CPC Class Codes: B60C 23/00 Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
• CPC Class Codes: B60W 2530/20 Tyre data
• CPC Class Codes: B60Y 2200/22 Agricultural vehicles
• CPC Class Codes: B60Y 2200/222 Harvesters

Abstract

The present invention relates to an agricultural working machine (2), in particular a forage harvester (1) with a device for adjusting the ground speed v, with which the maximum ground speed v of the agricultural working machine (2) is determined as a function of the tire pressure of at least one tire (14).

Claims

1. An agricultural working machine, in particular a forage harvester with a device for adjusting the ground speed, wherein the maximum ground speed v of the agricultural working machine (2) is determined as a function of the tire pressure of at least one tire (14).

2. The agricultural working machine as recited in claim 1, wherein for different tire sizes and/or tire types.

3. The agricultural working machine as recited in claim 1, wherein the maximum driveable ground speed v is determined with reference to at least one characteristic curve k, which accounts for—

at the least—

the parameter of tire pressure of a tire (14).

4. The agricultural working machine as recited in claim 3, wherein the at least one characteristic curve k also accounts for the parameter of tire type and/or tire size.

5. The agricultural working machine as recited in claim 3, wherein the at least one characteristic curve k is storable in a memory device (31), it being possible to enter the particular preselected, tire pressure-dependent, maximum ground speed value, the tire type, and the tire size in the memory device (31) via a control panel (35).

6. The agricultural working machine as recited in claim 1, wherein the pressure of at least one tire (14) is ascertained using an output signal generated by at least one sensor in a control and evaluation unit (34), which queries—

in accordance with the output signal that was produced—

the tire pressure-dependent, preselected, maximum driveable ground speed v stored in the memory device (31), and the queried ground speed value is transmitted to the ground speed control device (21) for automatic control of the ground speed v.

7. The agricultural working machine as recited in claim 1, wherein the agricultural working machine (2) may be operated, at the maximum, at ground speed v, which corresponds to the preselected ground speed value of the lowest tire pressure sensed by the sensors (33) when the sensors (33) in the various tires (14) of the agricultural working machine (2) detect different tire pressures.

8. The agricultural working machine as recited in claim 6, wherein the at least one sensor (33) is designed as a pressure sensor (32) and it detects the tire pressure.

9. The agricultural working machine as recited in claim 1, wherein the tire pressure-dependent, maximum driveable ground speed v is displayed to the driver (23) of the agricultural working machine (2) via a display unit (36) in the driver'"'"'s cab (25), and the driver (23) may manually adjust the maximum driveable ground speed v using suitable actuating elements.

10. The agricultural working machine as recited in claim 1, wherein, if the maximum driveable ground speed v that is determined as a function of the tire pressure is exceeded, an optical and/or acoustic warning signal is output to the driver (23) via a signal transducer, and/or the ground drive (19) of the agricultural working machine (2) is automatically regulated down to the maximum driveable ground speed v that was preselected based on the tire pressure.

11. The agricultural working machine as recited in claim 1, wherein the agricultural working machine (2) is a combine harvester, a forage harvester (1), or a tractor.