Ford Global Technolgoies, LLC

Andres Arevalo

Jon Dixon

Ian Halleron

Christian Winge Vigild

Frederik De Smet

Jan Harmsen

Mario Balenovic

Matthew Allen Schneider

Robert Ukropec

Frank Linzen

Monika Angst

Felix Goebel

Kim Ford

Dirk Roemer

Evgeny Smirnov

Sean Harman

Javier Castellano

Zoltan Szilagyi

Oliver Gee

A turbocharger control method and related systems are provided. An operational command to control a level of boost provided by the turbocharger is received. In response to receiving the operational command, an exhaust gas recirculation (EGR) valve is instructed to move from a current position to a desired position. A time taken for the EGR valve to move from the current position to the desired position is determined. A maximum rise rate of exhaust manifold pressure corresponding to a predicted EGR valve position is determined. A permitted exhaust manifold pressure limit for the turbocharger is determined based on a current exhaust manifold pressure, the maximum rise rate of exhaust manifold pressure and the time taken. An operation of the turbocharger is controlled such that the permitted exhaust manifold pressure limit is not exceeded.

Turbocharger control method

Methods and systems are provided for coordinating operation of a high pressure EGR control loop with a boost pressure control loop. In one example, following a tip-in, turbine vane position may be adjusted as a function of a maximum permissible exhaust pressure upstream of a turbocharger turbine. The maximum permissible exhaust pressure may be determined as a function of a HP EGR valve position at the time of the tip-in.

Method and system for operating an engine

Methods and systems are provided for an EGR valve diagnostic. In one example, a method may include actuating an EGR valve between first and second positions. The method may further includes determining one or more characteristics of the EGR valve during the diagnostic to determine if an EGR valve cleaning is desired.

Methods and systems for EGR valve diagnostics

An operating method for a motor vehicle having a hybrid drivetrain includes, during a demand check, comparing at least one value which characterizes a current state of an exhaust-gas after-treatment device, with a setpoint value of the exhaust-gas after-treatment device. In response to the comparison indicating a deviation of the value characterizing the current state of the exhaust-gas after-treatment device from the setpoint value, a demand for a measure is indicated. The measure includes supplying charge gas, which includes recirculated exhaust gas, to the internal combustion engine during overrun operation. In addition, a capability check is carried out to detect conditions suitable for implementing the operating method.

Methods relating to exhaust after-treatment devices

Methods and systems are provided for an exhaust gas recirculation valve. In one example, a system may include a valve being cleaned following a delay subsequent an engine shut-down.

Methods and systems for an exhaust gas recirculation system

Growing community of inventors

London, United Kingdom

Andres Arevalo