Caterpillar Inc.

Derek J Light

Ming Zhang

Michael D Mitchell

Joshua D Reed

Harold Duane Dabbs

Arjun Veneshetty

Paul William Bierdeman

Kirk S Shively

Aaron Y Ho

Bradley Bergerhouse

Mark David Anderson

Sudhakar Subramaniyan

Rohinikumar Adivi

Cynthia A Nastav

Jeffrey David Rule

A system and method to access a machine through a mobile device includes sending a machine key to a controller on-board the machine, and a mobile device key to the mobile device using a remote server. The mobile device sends a mobile device ID to the controller. The controller determines the mobile device key based on the mobile device ID and the machine key. The controller sends a random number to the mobile device. The mobile device processes the random number to derive a first processed random number, and sends the first processed random number to the controller. The controller processes the random number to derive a second processed random number. The controller enables a start button to send a request to start the machine, when the first processed random number matches the second processed random number. The controller starts the machine upon receiving the request to start the machine.

Starting a machine through a mobile device

A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode while the transmission shifts from a first gear ratio to a second gear ratio. The control system also limits engine speed below a first engine speed limit when a gear ratio setting of the transmission is indicative of the second gear ratio.

Machine powertrain control system and method

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Washington, IL, United States of America

Derek J Light