METHOD AND SYSTEM FOR CONTROLLING SHIFTING OF A VEHICLE IN CRUISE CONTROL

摘要

Methods and systems are presented for improving performance of a vehicle operating in a cruise control mode where a controller adjusts torque output from a vehicle to maintain vehicle speed within a desired range while preventing the unnecessary downshifts. The methods and systems include adapting a vehicle dynamics model and a vehicle fuel consumption model that provide input to nonlinear model predictive controller.

主权项

1. A vehicle system, comprising:
a vehicle including a motive torque source; and a controller in the vehicle, the controller including executable instructions stored in non-transitory memory, the instructions including an adaptive nonlinear model predictive cruise control routine, the adaptive nonlinear model predictive cruise control routine including a powertrain torque threshold to reduce transmission shifting while maintaining vehicle speed within first and second vehicle speed thresholds.