System and method for operating a machine

• US 8,041,485 B2
• Filed: 12/31/2007
• Issued: 10/18/2011
• Est. Priority Date: 12/31/2006
• Status: Active Grant

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Prasetiawan, Eko A., Guha, Satyaki
• Primary Examiner(s): Zanelli; Michael J.
• Application Number:
  US11/967,462
• Publication Number:
  US 20090012679A1
• Time in Patent Office: 1,387 Days
• Field of Search: None
• US Class Current: 701/50
• CPC Class Codes: E02F 3/964 of several tools mounted on one machine E02F3/962 takes precedence
• CPC Class Codes: E02F 9/166 movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins seats for vehicles in general B60N2/00
• CPC Class Codes: E02F 9/2004 Control mechanisms, e.g. control levers control levers per se G05G

Abstract

A machine is provided. The machine includes a body, an engine, a transmission, a seat assembly, an electronic control module, a first transmission controller, and a second transmission controller. The engine is mounted within the body and powers the machine. The transmission is coupled to the engine. The seat assembly is rotatably mounted to the body and moveable between a first position and a second position. The electronic control module is in electrical communication with the engine and the seat assembly. The first transmission controller is in electrical communication with the electronic control module and operable to control the transmission with a first transmission command. The second transmission controller is in electrical communication with the electronic control module and operable to control the transmission a second transmission command when the seat assembly is in the first position and the first transmission command is neutral.

Claims

1. A machine comprising:

a body;

an engine mounted within the body and powering the machine;

a transmission coupled to the engine;

a seat assembly being rotatably mounted to the body and moveable between a first position and a second position, wherein the seat assembly includes a seat assembly position sensor operable to detect the first position and the second position;

an electronic control module in electrical communication with the engine, the transmission, and the seat assembly position sensor;

a first transmission controller in electrical communication with the electronic control module and operable to control the transmission with a first transmission command; and

a second transmission controller in electrical communication with the electronic control module and operable to control the transmission with a second transmission command;

wherein the first transmission control operable to control the transmission using a forward command and a reverse command only when the seat assembly is in the first position and the second transmission command is neutral;

wherein the second transmission controller is operable to control the transmission using forward command and the reverse command only when the seat assembly is in the first position and the first transmission command is neutral.

2. The machine of claim 1, wherein the machine is a backhoe loader.

3. A control system for use in a machine, comprising:

a seat assembly position sensor operable to detect a position of a seat assembly;

an electronic control module in electrical communication with the seat assembly position sensor and including a transmission control algorithm to control a transmission;

a first transmission controller in electrical communication with the electronic control module;

a second transmission controller in electrical communication with the electronic control module; and

the transmission control algorithm using the first transmission controller to control the transmission using a forward command and a reverse command only when the seat assembly is in a first position and the second transmission controller is in a neutral position, and the transmission control algorithm using the second transmission controller to control the transmission using the forward command and the reverse command only when the seat assembly is in the first position and the first transmission controller is in the neutral position.

4. The control system of claim 3, wherein the machine is a backhoe loader.

5. A method of operating a machine having a transmission, a first transmission controller, and a second transmission controller, including the steps of:

detecting a position of a rotatable seat assembly;

controlling the transmission with the first transmission controller using a forward command and a reverse command only when the rotatable seat assembly is in a first position and the second transmission command is in a neutral position; and

controlling the transmission with the second transmission controller using the forward command and the reverse command only when the rotatable seat assembly is in the first position and the first transmission controller is in the neutral position.

6. The method of claim 5, wherein the machine is a backhoe loader.