Ford Global Technolgoies, LLC

Gang Song

John Ottavio Michelini

Ilya V Kolmanovsky

Donald James Lewis

Alexander O'Connor Gibson

Nate Trask

Michael John Cullen

Mrdjan J Jankovic

Xiaoying Zhang

Larry Allen Hardy

James Michael Kerns

Roger Arnold Trombley

Stephen B Smith

Alex Maurice Miller

Alex Gibson

Ahsan Qamar

James William McCallum

Fangjun Jiang

Matthew Joseph Meinhart

A path of a target object is predicted. A path of a non-moving host vehicle is predicted based on at least one of a predetermined host vehicle acceleration and a predetermined host vehicle speed. A threat number for the target is determined based at least in part on the predicted path of the host vehicle, the threat number indicating a probability of a collision between the target and the host vehicle. A brake is actuated when the threat number is above a threat number threshold.

Vehicle collision avoidance

A method for controlling the air-fuel ratio of an internal combustion engine operating with alternating intake valves is presented. According to the method, engine air-fuel ratio can be adjusted by changing valve timings or fuel during a cylinder cycle.

Method for controlling air-fuel ratio for an alternating valve engine

A method of control fueling of a cylinder in an internal combustion engine, the cylinder having at least two intake valves, the method comprising of operating in a first mode with one active intake valve and one inactive intake valve during a cycle of the cylinder operating in a second mode with two active intake valves during a cycle of the cylinder and adjusting a fuel injection from an injector configured to deliver fuel through at least the two intake valves, where the fuel injection adjustment is responsive to a transition in modes and based on whether the transition is from the first mode to the second mode, or from the second mode to the first mode.

Engine fueling control during cylinder valve mode transitions

A method for improving engine starting for an engine having a variable event valvetrain is described. According to one aspect of the description, valve timing during a start can be set so that combustion stability and emissions may be improved.

Throttle position control during an engine start

A method for controlling an engine to reduce vehicle shuffle mode vibration during mode transition. The engine includes multiple cylinders, each with at least one electrically actuated valve, and the engine operates in a first mode having a first number of firing cylinders and a second mode having a second number of firing cylinders. The method comprises transitioning the engine from operating in the first mode to the second mode; adjusting at least a valve timing or lift of one of a last cylinder to be fired in said first mode and a first cylinder to be fired in said second mode to temporarily adjust a cylinder torque and thereby reduce vehicle shuffle mode vibration.

System and method for reducing vehicle acceleration during engine transitions

Starting an engine having a variable event valvetrain

A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled to improve engine fuel economy. Further, the method can adjust valve operation to provide air-fuel charge motion and increase combustion stability.

Valve control for an engine with electromechanically actuated valves

A method for calculating transient fuel wall wetting characteristics of an operating engine is described. The method accounts for cylinder valve deactivation of cylinders in the engine in calculating the dynamic fueling compensation. In one example, fuel vaporization effects from fuel puddles in deactivated cylinders are considered when calculating the fueling compensation for active cylinders.

Engine control to compensate for fueling dynamics

An electronic valve actuation system and control method is described. The valve timing is changed between early and late intake valve closing depending on engine operating conditions. Further, valve timing is adjusted to control engine airflow or engine torque. Finally, air-fuel ratio is adjusted based on feedback from an exhaust gas oxygen sensor as well as an estimate of air, fuel, and residual exhausted from cylinders operating with late valve closing (after bottom dead center) timing.

Computer controlled engine valve operation

A method for calculating transient fuel wall wetting characteristics of an operating engine is described. The method accounts for cylinder valve deactivation of cylinders in the engine in calculating the dynamic fueling compensation. In one example, fuel vaporization effects from fuel puddles in deactivated cylinders is considered when calculating the fueling compensation for active cylinders.

A system and process for determining fuel injection time scheduling in an internal combustion engine. The system and method uses a prediction of engine speed to compensate for the errors due to rapid speed change in fuel injection during crank/start and engine speed transition like engine tip-in and tip-out.

Growing community of inventors

Canton, MI, United States of America

Gang Song