Apparatus and method for controlling deactivation of cylinders in engine
AssigneesHyundai Motor Company, Kia Motors Corporation, Kumoh National Institute of Technology Industry-Academic Cooperation Foundation
InventorsKi Seon Sim, Gee Wook Shin, Myung Sik Choi, Won Gyu Kim, Young Hong Kwak, Kyoung Seok Park
Life of this patent
Estimating the term…
Abstract
An apparatus and method for controlling deactivation of cylinders in an engine may include a sensor that measures pressure inside an intake manifold of the engine, an oil control valve (OCV) that deactivates the cylinders in the engine, and a controller that is configured to control the OCV to deactivate a specific cylinder in the engine, based on the pressure inside the intake manifold.
Claims16
An apparatus for controlling deactivation of cylinders in an engine, the apparatus comprising:
- a sensor configured to measure pressure inside an intake manifold of the engine;
- an oil control valve (OCV) configured to deactivate the cylinders in the engine;
- and
- a controller configured to control the OCV to deactivate a predetermined cylinder among the cylinders in the engine, based on the pressure inside the intake manifold,
- wherein the controller is configured to:
- set a plurality of reference ranges and a number of cylinders to be deactivated for each reference range of the plurality of reference ranges;
- and
- determine a number of cylinders to be deactivated, based on a reference range in which the pressure inside the intake manifold is included,
- wherein the controller is configured to determine an order in which all the cylinders in the engine are deactivated, to prevent the predetermined cylinder from being continually deactivated, and
- wherein the controller is configured to periodically modify the order in which all the cylinders in the engine are deactivated.
A method of controlling deactivation of cylinders in an engine, the method comprising:
- setting, by a controller, a plurality of reference ranges and a number of the cylinders to be deactivated for each reference range of the plurality of reference ranges;
- obtaining, by the controller, pressure inside an intake manifold of the engine;
- determining, by the controller, the number of cylinders to be deactivated, based on a reference range in which the pressure inside the intake manifold is included;
- and
- setting, by the controller, a plurality of groups based on a firing order of the cylinders in the engine and periodically modifying an order of the groups and an order in which cylinders in each group are deactivated.
Dependencies are inferred from the claim text.