Cummins Inc.

Oruganti Prashanth Sharma

Kenneth M Follen

Daniel Reed Dempsey

Vivek Anand Sujan

Nathanael G Long

Jairo Andres Sandoval Leon

Tejas Shrikant Kinjawadekar

Howard Robert Frost

Apurva Arvind Chunodkar

Craig M Calmer

Joseph R Dynes

Ian Fredrick Lowry

A powertrain including a prime mover and an electronically controllable clutch. The powertrain structured selectably engages the clutch to provide power from the prime mover to drive one or more ground contacting wheels and to selectably disengage the clutch to decouple with one or more ground contacting wheels. The electronic control system operatively communicates with the prime mover and the electronically controllable clutch, and uses a predictive cruise control (PCC) controller and an idle coast management (ICM) controller, to control vehicle speed during concurrent operation of the PCC controller and the ICM controller.

Optimization of concurrent operation of predictive cruise control and idle coast management control

A system, method, and apparatus include a controller structured to predict a change in speed of a vehicle in advance of upcoming terrain and inhibit a coasting event if the speed exceeds a limit. In one form a velocity of the vehicle is predicted using a physics based model of the vehicle within a look ahead window in front of a vehicle. Such a look ahead window can be distance or time based. In another, speed of a vehicle is monitored during a coasting event and is compared against a threshold to determine whether to remain coasting or re-engage an engine to a driveline. The threshold is a function of road grade, and permits a larger deviation from set speed at low grade than at high grade. The function can be based on road grade and vehicle weight.

Driveline disengagement and coasting management

A system, method, and apparatus includes management of coasting during operation of a vehicle equipped with a predictive cruise control system.

Systems and methods for idle coasting management of a vehicle having predictive cruise control

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Moutain View, CA, United States of America

Oruganti Prashanth Sharma