Cummins Inc.

Daniel Reed Dempsey

Vivek Anand Sujan

Kenneth M Follen

Nathanael G Long

Oruganti Prashanth Sharma

Jairo Andres Sandoval Leon

Joseph R Dynes

Tejas Shrikant Kinjawadekar

Howard Robert Frost

Apurva Arvind Chunodkar

Craig M Calmer

Ian Fredrick Lowry

J Steven Kolhouse

Thomas M Yonushonis

Tony James Hall

Steven W Reedy

Timothy J Proctor

Thomas Robert Marsh

David W Ochs

James Randall Nebergall

Jeffrey A Green

Christopher Michael Remington

Jason A Owens

Radhika Cherukuru

Nirav Shah

A method of substantially preventing road speed excursions while traversing a road grade includes: determining, by a controller, a predicted over speed for a vehicle during an upcoming downhill grade based on a difference between a predicted engine braking power of the vehicle and an amount of braking power that substantially prevents a speed of the vehicle from exceeding a speed threshold; and responsive to the determination, controlling, by the controller, one or more components of the vehicle to substantially prevent the vehicle from exceeding the speed threshold.

Speed limiting of vehicles equipped with engine brakes

Methods and systems for improving fuel economy and reducing emissions of a vehicle with an electric motor, an engine, an energy storage device, and a controller are disclosed. The method includes obtaining current state information including a current hybrid control surface, and determining a target hybrid control surface for the vehicle based on the current state information.

Method and system for a hybrid power control in a vehicle

Apparatuses, methods, and systems comprising vehicle fleet management systems are disclosed. One embodiment is a method that provides a plurality of predetermined powertrain trim templates, where each of the plurality of predetermined powertrain trim templates specifies a plurality of powertrain trim parameters implementable by an electronic powertrain control system to control one or more operational response characteristics of the powertrain. The method includes selecting one of the plurality of predetermined powertrain trim templates and one of a plurality of vehicles of a vehicle fleet to receive the selected one of the plurality of predetermined powertrain trim templates. In response to the act of selecting one of the plurality of predetermined powertrain trim templates, the method transmits via a telematics network one or more modified powertrain trim parameters. Further, the method receives the modified powertrain trim parameters with a telematics system of the selected one of the plurality of vehicles of the vehicle fleet. Also, the method applies the modified trim parameters with the electronic powertrain control system to control the one or more operational response characteristics of the powertrain.

Dynamic powertrain trim template selection and vehicle fleet optimization

A control system, apparatus, and method integrates management of vehicle torque limits and gear shifting of a vehicle by determining future engine power requirements from the forward-looking route conditions to improve performance and drivability of the vehicle over what is achievable through default and/or currently selected torque limits and gear state shifting strategies.

Systems and methods for engine and transmission control in response to look ahead data

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 method of substantially preventing road speed excursions while traversing a road grade event includes receiving, by a controller, vehicle operations data regarding operation of a vehicle and road grade data regarding an upcoming road grade of a path ahead of the vehicle. The method additionally includes determining, by the controller, an amount of braking power that substantially prevents the vehicle from exceeding a speed threshold regarding operation of the vehicle based on the road grade and vehicle operations data, and determining an amount of engine braking power based on a current transmission setting. The method further includes controlling, by the controller, a transmission setting in response to a determination that the amount of engine braking power is less than the amount of braking power.

A system for a vehicle including a controller structured to communicate with a transmission and an engine of a vehicle, and additionally structured to: receive at least one of vehicle operation data, route data, or dynamic data during operation of the vehicle; determine that the vehicle is in a coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data; provide a command to at least one of the engine and the transmission to maintain the coasting state for the vehicle; and determine an end of the coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data.

Vehicle coasting systems and methods

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

Methods of operating internal combustion engines are provided. A controller detects a coasting event while an associated vehicle is in motion. In response to the coasting event, the controller directs at least a portion of an exhaust gas output by an exhaust system of an internal combustion engine of the vehicle into an intake system of the internal combustion engine.

Intelligent coasting management

A system for a vehicle includes a transmission, an engine, and a controller communicably coupled to the transmission and the engine. The controller is structured to receive a vehicle operating parameter, receive vehicle operation data during operation of the vehicle, determine that the vehicle is in a coasting state based on the vehicle operation data, and provide a command to control at least one of an engine and the transmission during the coasting state to at least one of optimize the vehicle operating parameter and facilitate and maintain the coasting state.

Systems, apparatuses, and methods herein relate to vehicle speed management. The apparatus includes a projection module structured to determine a future road load for a vehicle based on horizon data regarding an attribute of a route of the vehicle at a future location of the vehicle. The apparatus also includes a vehicle drafting module structured to determine a drafting road load for the vehicle based on drafting data regarding operation of a second vehicle. The apparatus further includes a vehicle speed management module structured to determine and provide a vehicle speed adjustment to an output device of the vehicle to at least one of facilitate and maintain a drafting arrangement between the vehicle and the second vehicle responsive to at least one of the future road load and the drafting road load.

Growing community of inventors

Columbus, IN, United States of America

Daniel Reed Dempsey