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System and method for controlling a work vehicle transmission based on the detection of unintended vehicle motion

  • US 10,316,959 B2
  • Filed: 01/29/2016
  • Issued: 06/11/2019
  • Est. Priority Date: 01/29/2016
  • Status: Active Grant
First Claim
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1. A method for controlling the operation of a transmission of a work vehicle based on the detection of unintended vehicle motion, the method comprising:

  • determining an intended driving direction for the work vehicle while the work vehicle is positioned on a sloped surface;

    initiating a shifting procedure within the transmission for engaging an on-coming clutch associated with moving the work vehicle in the intended driving direction, the on-coming clutch being initially engaged at an initial ramp rate;

    monitoring an acceleration of the work vehicle as the on-coming clutch is being engaged using an accelerometer positioned on or within the work vehicle;

    comparing a first accelerometer measurement obtained prior to the initiation of the shifting procedure to a second accelerometer measurement obtained following the initiation of the shifting procedure to determine a current travel direction for the work vehicle; and

    when the current travel direction differs from the intended driving direction, adjusting the initial ramp rate for engaging the on-coming clutch to an increased ramp rate.

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