Kia Motors Corporation

Hyundai Motor Company

Hyundai Motor Gompany

Seungbum Kim

Jeong Nam Park

An apparatus configured for controlling starting of engine may include a clutch pedal including an ignition lock switch, a starter, a status detecting unit, an electronic clutch mounted between the engine and a transmission, a clutch controller configured to control coupling and releasing of the electronic clutch, check status of the electronic clutch and generate a clutch status data, and a vehicle controller configured to enter coasting running mode based on the vehicle status data, and, during the coasting running mode, operate the starter and restart the engine based on the clutch status data provided from the clutch controller and a switch status data of the ignition lock switch when a position value of an acceleration pedal included in the vehicle status data is equal to or greater than an acceleration reference value.

Apparatus and method for controlling starting of vehicle engine

A method for diagnosing an engine system including a continuous variable valve duration (CVVD) apparatus, a driving unit of the CVVD apparatus including a first driving unit and a second driving unit, a CVVD position detector configured to detect a position of the CVVD apparatus, a camshaft position detector configured to detect a position of a camshaft, a front lambda detector configured to detect a lambda value at front of intake valve, and a controller may include the steps of starting the engine, detecting measured values of the front lambda detector during combustion of first to fourth cylinders (first to fourth lambda values), determining whether CVVD driving unit is misaligned according to the detected first to fourth lambda values, and generating a warning notification when the CVVD driving unit is determined to be misaligned.

Method and apparatus for diagnosing engine system with continuous variable valve duration apparatus

An apparatus of controlling starting of an engine may include a starter, an electronic clutch mounted between the engine and a transmission, a gear position detector, a clutch controller configured to control the electronic clutch, receive the gear stage position data from the gear position detector, and generate a gear stage status data, and a vehicle controller connected to the clutch controller through a vehicle communication network, and configured to receive start signal, determine whether the vehicle communication network and the clutch controller are normal, receive the gear position data from the gear position detector and the gear stage status data from the clutch controller when the vehicle communication network and the clutch controller are determined to be normal, and operate the starter to start the engine based on the gear stage status data and the gear position data.

Apparatus and method for controlling vehicle engine starting

A method and apparatus for diagnosing an engine system are provided. An apparatus for diagnosing an engine system including a continuous variable valve duration (CVVD) apparatus according to an exemplary embodiment of the present invention may include: an accelerator pedal position detector configured for detecting a position of an accelerator pedal; a brake pedal position detector configured for detecting a position of a brake pedal; a vehicle speed detector configured for detecting a speed of a vehicle; an intake pressure detector configured for detecting an intake pressure; and a controller configured for determining whether a fuel cut condition is satisfied and determining whether the CVVD apparatus is in a failure state when the fuel cut condition is satisfied.

Method and apparatus for diagnosing engine system

A method of controlling an engine system may include: method of controlling an engine system including a continuous variable valve duration (CVVD) apparatus, the method including: detecting data for controlling the engine system; determining whether a speed of an engine is less than a predetermined speed; determining whether a position value of an accelerator pedal is greater than a predetermined position value when the rotation speed of the engine is less than the predetermined speed; operating the CVVD apparatus to increase a valve overlap when the position value of the accelerator pedal is greater than the predetermined position value; and performing a knock control after the valve overlap is increased.

Method and apparatus for controlling engine system

A method of and an apparatus for controlling an engine system having a continuous variable valve duration (CVVD) apparatus and an exhaust gas recirculation (EGR) apparatus may include: determining whether an EGR valve of the EGR apparatus is opened; determining an amount of an external EGR gas according to opening of the EGR valve and an amount of an internal EGR gas according to operation of the CVVD apparatus when the EGR valve is opened; comparing a value obtained by summing the amount of the external EGR gas and the amount of the internal EGR gas with an EGR limit value; and decreasing a duration of an intake valve when the value obtained by summing the amount of the external EGR gas and the amount of the internal EGR gas is greater than the EGR limit value.

A method of and an apparatus for diagnosing an engine system are provided. An apparatus for diagnosing an engine system including a continuous variable valve duration (CVVD) apparatus and an exhaust gas recirculation (EGR) apparatus may include: an accelerator pedal position sensor detecting a position of an accelerator pedal; a brake pedal position sensor detecting a position of a brake pedal; a vehicle speed sensor detecting a speed of a vehicle; an intake pressure sensor detecting an intake pressure; and a controller determining whether a fuel cut condition is satisfied and determining whether the CVVD apparatus and an EGR valve is in a failure state when the fuel cut condition is satisfied.

A method of controlling driving of a vehicle may include determining whether a vehicle speed exceeds a predetermined speed, determining whether a signal of an accelerator position sensor (APS) is input as a signal of an accelerator pedal, determining whether a signal of a brake position sensor (BPS) is input as a signal of a brake pedal, determining whether the signal of the BPS is input while overlapping the signal of the APS for over a predetermined time in a state where the signal of the APS is being input, determining whether the signal of the APS is input while overlapping the signal of the BPS for over a predetermined time in a state where the signal of the BPS is first being input, driving an engine in a first smart pedal control mode, and executing a second smart pedal control mode.

Method and system for controlling driving of vehicle

A gasoline engine control system includes a crankshaft rotation sensor configured to measure a rotation speed of a crankshaft, a coolant temperature sensor configured to measure a coolant temperature, an engine knocking sensor, a valve timing mechanism, an engine igniter, an air/fuel controller, and a controller configured to obtain a crankshaft rotation speed, a coolant temperature, and knocking information from the crankshaft rotation sensor, the coolant temperature sensor, and the engine knocking sensor, respectively, to determine a fuel class flowing in the engine and a cold start adaption factor, determine a fuel/cold start adaption factor based on the fuel class and the cold start adaption factor, and control an operation of at least one of the valve timing mechanism, the engine igniter, and the air/fuel controller according to the determined fuel/cold start adaption factor when the determined fuel/cold start adaption factor may be not a predetermined reference fuel/cold start adaption factor.

Gasoline engine control system and control method for the same

A system and a method of diagnosing a secondary air injection apparatus may include an intake line supplying air to an engine, an exhaust line exhausting exhaust gas, a secondary air injection (SAI) line branching off at a branch point of the intake line and being joined to the exhaust line at a joining point of the exhaust line, a first pressure sensor mounted at the intake line to detect pressure or amount of intake air flowing through the intake line, a catalytic converter, a first oxygen sensor mounted at the exhaust line, an SAI pump mounted at the SAI line and pumping the air flowing through the intake line to the SAI line, an SAI valve mounted at the SAI line and selectively communicating the SAI line with the exhaust line, and a control portion controlling the SAI pump and the SAI valve to perform catalyst heating.

Vehicle having system and method of diagnosing secondary air injection apparatus

An exhaust gas recirculation control apparatus includes: an EGR valve adjusting a flow rate of EGR gas recirculated from an exhaust manifold to an intake manifold; a manifold absolute pressure (MAP) sensor measuring pressure inside the intake manifold; a throttle valve controlling the amount of inflow air; an igniter spraying fuel; an acceleration pedal angular position sensor; a crank position sensor measuring engine RPM; a vehicle speed sensor measuring a speed of a vehicle; and a control portion receiving a pressure signal from the MAP sensor, calculating a ratio of the EGR gas for a total volume of the intake manifold by using pressure variance inside the intake manifold, calculating pressure of the EGR gas by multiplying the pressure of the intake manifold and the ratio of the EGR gas, and converting the pressure of the EGR gas to a flow rate of the EGR gas.

Apparatus and method for controlling exhaust gas recirculation

An exhaust gas recirculation diagnosis device may include an EGR module that supplies an intake manifold with exhaust gas from an exhaust manifold, a MAP (manifold absolute pressure) sensor that measures pressure of the intake manifold, and a control portion that controls the EGR module such that the flow rate of the exhaust gas that is supplied from the exhaust manifold to the intake manifold is controlled by stages and monitors the value of the MAP sensor in a fuel cut off condition to diagnose whether the EGR module is faulty. The exhaust gas recirculation diagnosis device uses MAP sensor to perform exhaust gas recirculation and to diagnose the fault of the exhaust gas recirculation device.

Apparatus for diagnosing exhaust gas recirculation and method thereof

An engine system may include an engine generating torque through a crankshaft, an exhaust line that exhaust gas of the engine flows, a diesel particulate filter disposed on the exhaust line to trap particulate matters of the exhaust gas, a first pressure difference sensor configured to detect a front/rear pressure difference of the diesel particulate filter, a temperature sensor configured to detect a temperature of exhaust gas flowing into the diesel particulate filter, and a control unit that detects signal form the temperature sensor and the first pressure difference sensor in a predetermined rotation cycle of the crankshaft, uses the detected signal to calculate a front/rear pressure difference of the diesel particulate filter, and calculates a temperature of exhaust gas flowing into the diesel particulate filter. A corresponding signal processing method is also described.

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Seongnam-si, South Korea

Seungbum Kim