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System and method for controlling a transmission

  • US 8,880,309 B1
  • Filed: 04/12/2013
  • Issued: 11/04/2014
  • Est. Priority Date: 04/12/2013
  • Status: Active Grant
First Claim
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1. A powertrain system for a vehicle comprising;

  • a transmission having a gear selection controller adaptive to select one of a plurality of gear ratios;

    an electronic control unit;

    at least one information acquisition unit;

    wherein the electronic control unit uses information from the information acquisition unit to determine when the vehicle is stationary and when the vehicle is on an expressway, when the electronic control unit determines the vehicle is stationary and the vehicle is on an expressway then the electronic control unit sends a signal to the gear selection controller of the transmission to select a lower gear ratio than would normally be used to transition the vehicle from a stationary to a moving state.

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