1
Gopichandra Surnilla: Method for rapid catalyst heating. Ford Global Technologies, Allan J Lippa, John D Russell, May 27, 2003: US06568177 (79 worldwide citation)

A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel ...


2
Christopher P Glugla, John Ottavio Michelini: Variable displacement engine control for fast catalyst light-off. Ford Global Technologies, John D Russell, Allan J Lippa, May 21, 2002: US06389806 (73 worldwide citation)

A system and method for controlling a variable displacement engine include starting the engine with at least one bank of cylinders deactivated to increase load on at least one other bank of activated cylinders and reduce time required for an engine and/or vehicle component to reach a desired operati ...


3
Jessy W Grizzle, Jing Sun: Direct injection engine system and method. Ford Global Technologies, John D Russell, June 12, 2001: US06244242 (57 worldwide citation)

A method for controlling mode transitions, such as from stratified to homogeneous mode, in a direct injection engine adjusts a number of cylinders carrying out combustion to prevent engine torque disturbances. Cylinder activation is used when changes in cylinder air/fuel ratio cannot be compensated ...


4
Michiel Jacques van Nieuwstadt: Method and apparatus for controlling the amount of reactant to be added to a substance using a sensor which is responsive to both the reactant and the substance. Ford Global Technologies, Allan J Lippa, John D Russell, April 15, 2003: US06546720 (53 worldwide citation)

A method wherein a reactant is added to a substance to react with such substance. The product of such reaction along with un-reacted portions of the substance and un-reacted portions of the reactant are directed to a sensor. The sensor produces an output signal in response to detection of both the u ...


5
Ilya V Kolmanovsky, Jing Sun: Lean engine control with multiple catalysts. Ford Global Technologies, Allan J Lippa, John D Russell, April 22, 2003: US06550240 (48 worldwide citation)

A method for controlling an engine having multiple banks with separate catalysts is described. In particular, coordinate lean and rich operation between the banks is utilized. However, termination of rich operation may be different between the banks to prevent breakthrough of rich exhaust gasses due ...


6
John David Russell: Control method for engine having multiple control devices. Ford Global Technologies, John D Russell, April 17, 2001: US06219611 (46 worldwide citation)

A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention achieves cylinder air charge control ...


7
Alexander Y Gopp, John Ottavio Michelini: Fueling control system. Ford Global Technologies, Allan J Lippa, John D Russell, May 20, 2003: US06567738 (45 worldwide citation)

A method for controlling air-fuel ratio of an engine coupled to an emission control device uses an upstream linear exhaust gas sensor and a switching downstream exhaust gas sensor. During stoichiometric operation, both sensors are used for feedback control. During operation away from stoichiometry, ...


8
Stanley L Bower Jr, Donald J Lewis, Kevin Ronald Carlstrom, Stephen L Hahn: Catalyst based adaptive fuel control. Ford Global Technologies, Allan J Lippa, John D Russell, September 24, 2002: US06453665 (42 worldwide citation)

An air/fuel control system and method for controlling an air/fuel ratio entering an engine are disclosed. The system comprises a controller and two sensors. In operation, a first feedback loop is created around the engine to control the oxygen concentration in the exhaust gas. A second feedback loop ...


9
Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower Jr, Stephen L Hahn: System and method for estimating oxidant storage of a catalyst. Ford Global Technologies, Allan J Lippa, John D Russell, September 24, 2002: US06453662 (41 worldwide citation)

The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. To do so, the invented system estimates an amount of oxidants stored ...


10
William Francis Stockhausen, Mazen Hammoud, Thomas George Leone, Diana Dawn Brehob, John D Russell: Transitions among operating modes in an engine with a hybrid valvetrain. Ford Global Technologies, John D Russell, Allan J Lippa, May 14, 2002: US06386156 (40 worldwide citation)

A method for controlling intake valves in an internal combustion with intake valves operated by more than one type of actuation device includes steps to accomplish smooth transitions among intake valve operating modes.