ENGINE CONTROL SYSTEM AND METHOD
First Claim
1. An engine control system, comprising:
- an engine including a plurality of combustion chambers and configured to provide driving torque through combustion of a fuel to be injected into the combustion chambers;
a turbocharger including a turbine rotated based on flow energy of exhaust gas exhausted from the engine, a compressor configured to compress external air in synchronization with the rotation of the turbine to supply the compressed air to a cylinder, and a vane configured to adjust an amount of exhaust gas to be supplied to the turbine;
an exhaust gas recirculation (EGR) device configured to recirculate a portion of exhaust gas exhausted from the combustion chamber to supply the recirculated gas to the combustion chamber;
an exhaust manifold including a body formed therein with an internal fluid path, a plurality of exhaust inlets formed within the body and in which exhaust gas exhausted from the plurality of combustion chambers is introduced, a partition to divide the internal fluid path into a first internal fluid path and a second internal fluid path, and an exhaust outlet to which exhaust gas introduced from the plurality of exhaust inlets is exhausted;
a first temperature sensor configured to measure a temperature of exhaust gas flowing through the first internal fluid path;
a second temperature sensor configured to measure a temperature of exhaust gas flowing through the second internal fluid path; and
a controller configured to adjust an opening amount of the vane of the turbocharger, an amount of exhaust gas recirculated using the EGR device, and an amount of a fuel to be injected to the plurality of combustion chambers based on the temperature of the exhaust gas measured by the first temperature sensor and the temperature of the exhaust gas measured by the second temperature sensor.
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Accused Products
Abstract
An engine control system is provided and includes an engine having combustion chambers and provides driving torque through combustion of a fuel injected into the combustion chambers. A turbocharger includes a turbine rotated according to flow energy of exhaust gas, a compressor compressing external air, and a vane adjusting amount of exhaust gas supplied to the turbine. An EGR device recirculates exhaust gas to the combustion chamber. An exhaust manifold includes a body with an internal fluid path, exhaust inlets in which exhaust gas is introduced, a partition to form internal fluid paths, and an exhaust outlet to which exhaust gas is exhausted. Temperature sensors measure temperature of exhaust gas flowing through the internal fluid paths. A controller adjusts an opening amount of the vane of the turbocharger, exhaust gas recirculated using the EGR device, and fuel to be injected to the combustion chambers based on measured temperature.
8 Citations
18 Claims
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1. An engine control system, comprising:
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an engine including a plurality of combustion chambers and configured to provide driving torque through combustion of a fuel to be injected into the combustion chambers; a turbocharger including a turbine rotated based on flow energy of exhaust gas exhausted from the engine, a compressor configured to compress external air in synchronization with the rotation of the turbine to supply the compressed air to a cylinder, and a vane configured to adjust an amount of exhaust gas to be supplied to the turbine; an exhaust gas recirculation (EGR) device configured to recirculate a portion of exhaust gas exhausted from the combustion chamber to supply the recirculated gas to the combustion chamber; an exhaust manifold including a body formed therein with an internal fluid path, a plurality of exhaust inlets formed within the body and in which exhaust gas exhausted from the plurality of combustion chambers is introduced, a partition to divide the internal fluid path into a first internal fluid path and a second internal fluid path, and an exhaust outlet to which exhaust gas introduced from the plurality of exhaust inlets is exhausted; a first temperature sensor configured to measure a temperature of exhaust gas flowing through the first internal fluid path; a second temperature sensor configured to measure a temperature of exhaust gas flowing through the second internal fluid path; and a controller configured to adjust an opening amount of the vane of the turbocharger, an amount of exhaust gas recirculated using the EGR device, and an amount of a fuel to be injected to the plurality of combustion chambers based on the temperature of the exhaust gas measured by the first temperature sensor and the temperature of the exhaust gas measured by the second temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An engine control method comprising:
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measuring, by a first temperature sensor, a temperature of exhaust gas flowing through a first internal fluid path of an exhaust manifold; measuring, by a second temperature sensor, a temperature of exhaust gas flowing through a second internal fluid path of an exhaust manifold; measuring, by a controller, an amount of exhaust gas exhausted from a combustion chamber of an engine flowing through an internal fluid path divided into the first internal fluid path and the second internal fluid path by a partition; determining, by the controller, whether a difference between the temperature of exhaust gas detected by the first temperature sensor and the temperature of exhaust gas detected by the second temperature sensor is less than or equal to a preset temperature; and adjusting, by the controller, an amount of exhaust gas recirculated to the combustion chamber, an opening amount of a vane of a turbocharger, and an amount of a fuel to be injected to the plurality of combustion chambers using the temperature of the exhaust gas detected by the first temperature sensor and the temperature of the exhaust gas detected by the second temperature sensor. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
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program instructions that control a first temperature sensor to measure a temperature of exhaust gas flowing through a first internal fluid path of an exhaust manifold; program instructions that control a second temperature sensor to measure a temperature of exhaust gas flowing through a second internal fluid path of an exhaust manifold; program instructions that measure an amount of exhaust gas exhausted from a combustion chamber of an engine flowing through an internal fluid path divided into the first internal fluid path and the second internal fluid path by a partition; program instructions that determine whether a difference between the temperature of exhaust gas detected by the first temperature sensor and the temperature of exhaust gas detected by the second temperature sensor is less than or equal to a preset temperature; and program instructions that adjust an amount of exhaust gas recirculated to the combustion chamber, an opening amount of a vane of a turbocharger, and an amount of a fuel to be injected to the plurality of combustion chambers using the temperature of the exhaust gas detected by the first temperature sensor and the temperature of the exhaust gas detected by the second temperature sensor. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification