METHOD OF CONTROLLING MACHINES WITH CONTINUOUSLY VARIABLE TRANSMISSION

• US 20160186857A1
• Filed: 03/10/2016
• Published: 06/30/2016
• Est. Priority Date: 03/10/2016
• Status: Abandoned Application

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Mitchell, Michael David, Mei, Barry
• Application Number:
  US15/065,881
• Publication Number:
  US 20160186857A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F16H 2059/663 Road slope
• CPC Class Codes: F16H 59/44 dependent on machine speed of the machine, e.g. the vehicle
• CPC Class Codes: F16H 59/66 Road conditions, e.g. slope, slippery
• CPC Class Codes: F16H 61/0213 characterised by the method for generating shift signals
• CPC Class Codes: F16H 63/48 Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission

Abstract

A method is provided for controlling a machine having a continuously variable transmission travelling on a ground surface. The method includes receiving signals indicative of a speed of the machine and an inclination angle of the surface on which the machine is travelling. The method further includes receiving a shift signal indicative of a desired change in a direction of travel of the machine. The method selectively activates at least one supplementary retarding device based at least on one of the inclination angle and the speed of the machine.

Claims

1. A method of controlling a machine having a continuously variable transmission, travelling on a ground surface, the method comprising:

receiving an inclination signal, through an inclination sensor, wherein the inclination signal is indicative of an inclination angle of the ground surface;

receiving a speed signal, through a speed sensor, wherein the speed signal is indicative of a speed of the machine;

receiving a shift signal, through an input device, wherein the shift signal is indicative of a command for a change in a direction of travel of the machine; and

selectively activating, through a controller and in response to receiving the shift signal, at least one supplementary retarding device based at least in part on one of the inclination angle, and the speed of the machine.