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Method and system for controlling shifting of a vehicle in cruise control

  • US 10,124,784 B2
  • Filed: 12/05/2016
  • Issued: 11/13/2018
  • Est. Priority Date: 04/13/2015
  • Status: Active Grant
First Claim
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1. A vehicle system, comprising:

  • a vehicle including a motive torque source;

    a transmission coupled to the motive torque source; and

    a controller in the vehicle, the controller including executable instructions stored in non-transitory memory, wherein the controller is configured to;

    sense a vehicle speed;

    provide a torque command to the motive torque source responsive to an output of an adaptive nonlinear model predictive cruise control routine, the torque command determined based on a shape of a vehicle fuel consumption model; and

    operate the motive torque source to output a powertrain torque, the powertrain torque constrained below a powertrain torque threshold, where the transmission downshifts responsive to the powertrain torque equal to or greater than the powertrain torque threshold at the sensed vehicle speed.

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