Hyundai Motor Company

Snu Rdb Foundation

Kia Motors Corporation

Seoul National University

Junyong Lee

Daekwang Kim

Minyoung Jung

Chikung Ahn

Jiyong Yu

Kyoungchan Han

Jun Young Yu

Kyoungdoug Min

Sejun Kim

Kihoon Nam

Wonah Park

Jin Ha Lee

Kyoung Min Lee

Young Jae Kim

Sera Lim

Kyoung Doug Min

Hyungjun Kim

Kuk-jin Chun

Seungha Lee

Youngbok Lee

Seounghyeon Lee

Gyujin Kim

A method of predicting NOx generation amount of a compression ignition engine is provided. The method includes predicting a composition ratio of a gas in a mixture and a flame temperature using driving variables of an engine and calculating a nitrogen oxide generation rate using the composition ratio of the gas in the mixture and the flame temperature. Additionally, a nitrogen oxide generation concentration around flame is calculated using the nitrogen oxide generation rate and a total nitrogen oxide generation amount of a cylinder is predicted using the nitrogen oxide generation rate and the nitrogen oxide generation concentration.

Device and method of predicting NOx generation amount

A particulate matter sensor unit may include a sensor portion of an electrostatic induction type that may be reacted when a particulate matter having electric charge may be passing the vicinity thereof, a protection pad that the sensor portion may be bonded on one side thereof through a conductive paste, an heater electrode that may be formed on the protection pad and burns the particulate matters that may be disposed on the sensor portion to eliminate them, and a sensor electrode that may be formed on the protection pad to transfer a signal that may be generated by the sensor portion to an outside.

Particulate matter sensor unit

A system and a method for controlling NOx may include predicting NOx generation amount by using a virtual sensor; comparing the NOx prediction amount with a predetermined NOx target amount; and controlling the NOx generation amount so as for the NOx prediction amount to follow the NOx target amount.

System and method for controlling NOx

The ISG (Idle Stop & Go) system may include a vehicle information receiving unit receiving a vehicle information, and a control unit including an ISG operation logic which performs an idle stop when a preset idle stop condition is satisfied and restarts the engine when a preset restart condition of the engine is satisfied, and an ISG deactivation determination logic which determines whether a preset ISG deactivation condition is satisfied or not, based on the accumulated number of determinations that the idle stop condition is not satisfied, the accumulated number of idle stops, and the accumulated number of determinations that a performance time of the idle stop is smaller than a preset idle stop retention time, and deactivates the ISG operation logic when the ISG deactivation condition is satisfied.

ISG system and control method thereof

An apparatus for monitoring belt slip in a belt-torque assistance system includes a motor-alternator slip control unit that determines whether the belt connecting the motor-alternator with the engine in accordance with driving modes of a vehicle slips, and restricts operation of the motor-alternator in accordance with the slip of the belt, an ECU that outputs the operation state of the engine to the motor-alternator slip control unit, an inverter that changes an alternate current generated from the motor-alternator into a direct current or a direct current into an alternate current to drive the motor-alternator, and outputs a signal according to the speed of a rotor and power generation load to the motor-alternator slip control unit, and a motor-alternator operation control unit that operates the motor-alternator to generate power from the driving power transmitted from the engine and to assist torque of the engine.

Apparatus and method for monitoring belt slip in belt-torque assistance system

A method of predicting NOx generation amount may include calculating NO generation rate by using a combustion pressure of an engine and driving variables of the engine, obtaining NO generation period by using the combustion pressure of the engine, calculating NO generation amount based on the NO generation rate and the NO generation period, and predicting the NOx generation amount by obtaining NOgeneration amount based on a ratio between NO and NOaccording to the NO generation amount and a driving condition of the engine.

Method of predicting NOx generation amount

A vehicle generation controlling system for saving fuel includes a battery supplying power to electric components of a vehicle, a generator generating power by using rotational force of an engine and supplying the generated power to the battery and the electric components, and an ECU determining whether generation control is prevented by monitoring vehicle information on the vehicle and operational information on an operation of an electric product of a cooling system among the electric components and controlling the generator to prevent the generation control according to the determination. As a result, the generation control is performed based on whether an electric product of a cooling system is actuated and vehicle information on the vehicle to thereby prevent cooling performance from being deteriorated due to the generation control.

Vehicle generator control system and method for saving fuel

A vehicle generating system for saving fuel includes a battery supplying power to electric loads in a vehicle, an electric generator supplying power to the battery and the electric loads, a speed calculation module that calculates operation speed of a wiper in the electric loads, and an ECU including an electric generation control prevention module controlling the electric generator to perform electric generation control prevention when the operation speed calculated by the speed calculation module is compared with a predetermined reference speed and the calculated operation speed is equal to or more than the reference speed, and controlling the electric generator to remove the electric generation control prevention when the operation speed is less than the reference speed.

A battery charging system for a vehicle includes a generator, a battery, a DC/DC converter converting the electrical power generated by the generator and supplying the converted electrical power to the electrical device of the vehicle and supplying the electrical power to an electrical device, and charging the battery, an energy storage device storing the electrical power generated from the generator and providing the stored electrical power to the DC/DC converter, and an engine control unit controlling the generator to charge the energy storage device by providing regenerative power generated by the generator in a deceleration driving section of the vehicle, calculating a low-voltage control amount determined to correspond to a state of the battery connected to the DC/DC converter and whether the electrical device of the vehicle operates, and controlling the DC/DC converter to charge the electrical power in the battery based on the calculated low-voltage control amount.

Growing community of inventors

Hwaseong-si, South Korea

Junyong Lee