Ford Global Technolgoies, LLC

Mary Catherine Farmer

Joseph Lyle Thomas

Dennis C Reed

Ethan D Sanborn

Paul Hollar

Daniel Dusa

Maruthi Ravichandran

Peter Douglas Kuechler

Terry Gene Feldpausch

Fazal Urrahman Syed

Joshua Nicholas Dewalt

Rajit Johri

Dimitar Petrov Filev

Jason Meyer

Shunsuke Okubo

Kevin Ruybal

Sassan Farahmand

Justin Panhans

Judhajit Roy

Naginder Gogna

Bhavesh Paradkar

Mitchell Thomas Fink

Ravi Kumar Tumu

Methods and systems are provided for a drivetrain system comprising: a first prime mover for supplying a torque to a front axle; a second prime mover for supplying a torque to a rear axle; and a controller configured to, in response to a torque reversal, command the front axle and the rear axle to cross lash zones sequentially.

Clunk and shuffle management in multi-motor, multi-axle electrified drivetrains

Systems and methods for operating a driveline of a hybrid vehicle are presented. In one example, torque capacity of a driveline disconnect is coordinated with torque control of an electric machine immediately following engine starting. The electric machine and the driveline disconnect clutch may assist starting of an engine, or alternatively, the engine may be started via a starter motor.

System and method for coordinating disconnect clutch and electric machine torque

Systems and methods for starting an internal combustion engine of a hybrid vehicle are presented. In one example, the internal combustion is started via closing a driveline disconnect clutch and limiting a torque output rate of an electric machine so that vehicle speed may increase continuously without decreasing during engine cranking and run-up periods.

Systems and methods to coordinate clunk and shuffle management with engine starts in MHT drivetrains

Swaddling blanket

Methods and systems are provided for reducing port injection fuel errors by selectively reactivating a direct fuel injector. Responsive to an increase in driver demand received while delivering fuel to a cylinder via port injection only, wherein the increase in driver demand is received late in the port injection window, the port injection error is addressed by reactivating a direct injector on the same engine cycle and delivering at least a portion of the fuel mass corresponding to the error via the direct injector. Additionally, a portion of the fuel mass may be delivered by the port injector on the same engine cycle by extending the end of injection timing, if possible.

Methods and systems for dual fuel infection

A vehicle includes a powertrain and a controller. The powertrain includes a powerplant. The controller is programmed to, responsive to a tip-in resulting in a powertrain torque direction reversal and upon obtaining a base value of a desired powertrain lash angle, adjust a powerplant torque schedule. The controller is then subsequently programmed to adjust the desired powertrain lash angle from the base to an adjusted value based on an observed powertrain lash angle that corresponds to a maximum powertrain acceleration during the tip-in.

Vehicle powertrain lash crossing control strategy

Methods and systems for dual fuel injection

A system and method for controlling backlash in a vehicle powertrain includes the step of controlling a torque request of the powertrain with a first control strategy after an occurrence of a backlash predictor and prior to an occurrence of backlash. The first control strategy is modified when backlash occurs during the first control strategy. The torque request is controlled with the modified first control strategy after another occurrence of a backlash predictor and before another occurrence of backlash.

Adaptive control of backlash in a vehicle powertrain

A system and method for controlling backlash in a vehicle powertrain includes the step of controlling a torque request of the powertrain with a first control strategy after an occurrence of a backlash predictor and before an occurrence of a backlash. Another step may be employed whereby the torque request is controlled with a second control strategy after the first control strategy and before the occurrence of the backlash such that a torque request level is below a highest torque request level obtained during the first control-strategy.

System and method for controlling backlash in a vehicle powertrain

A system for improving operation of an EGR system is presented. The system provides distinct models to estimate EGR temperature in response to a valve position. In one example, the system can judge EGR system operation when a state of a control valve is adjusted during driving conditions.

System for determining EGR degradation

Growing community of inventors

Plymouth, MI, United States of America

Mary Catherine Farmer