Abstract:
본 발명은 가상의 센서를 이용하여 상기 녹스의 발생량을 예측하고, 녹스 예측값을 기설정된 녹스 목표값과 비교하여, 상기 녹스 예측값이 상기 녹스 목표값을 추종하도록 녹스 발생량을 제어하는 녹스 제어 시스템 및 방법에 관한 것으로서, 본 발명에 따르면 별도의 장비 없이도 녹스 발생량을 실시간으로 예측할 수 있고, 예측된 녹스 발생량을 이용하여 운전 상황에 맞추어 목표값을 설정함으로써 녹스 배출을 줄일 수 있는 방향으로 제어함으로써 배기성능을 향상시킬 수 있는 효과가 있다
Abstract:
PURPOSE: A device for setting a mounting position of a vibration sensor of an inner combustion engine, a control method thereof, and a system for the same are provided to set a mounting position of the vibration sensor by measuring vibration and pressure and analyzing the same simultaneously on a real time basis, thereby reducing the number of processes and minimizing time required for setting an optimal mounting position. CONSTITUTION: A device for setting a mounting position of a vibration sensor comprises a data measuring unit(10) and a data calculation unit(30). The data measuring unit respectively measures vibration per each measurement position set in advance and pressure at a reference position set in advance when combusting the inner combustion engine. The data calculation unit calculates correlation indexes per each measurement positions by using measured pressure signals and vibration signals, thereby setting the mounting position of the vibration sensor based on the calculated correlation indexes. [Reference numerals] (12) Pressure measuring end; (14) Vibration measuring end; (30) Data calculation unit
Abstract:
PURPOSE: A combustion time discriminating method of a compression-ignition engine and an apparatus thereof are provided to control a direct injection type compression-ignition engine by analyzing the vibration signal of the engine block. CONSTITUTION: A combustion time discriminating method of a compression-ignition engine comprises following steps. A block vibration signal which is generated by the combustion of an engine is measured(S101). After establishing a frequency domain(S102) to be analyzed in the block vibration, a wavelet scale is partitioned(S103). The successive wavelet transform is enabled on a wavelet scale(S104), and the return value is extracted according to the time. The difference value of the scale is calculated(S105).
Abstract:
PURPOSE: A separable intake manifold apparatus for stratifying Exhaust Gas Recirculation in an engine is provided to simultaneously reduce nitrogen oxide and soot by stratifying re-circulated EGR gas in a combustion chamber. CONSTITUTION: A separable intake manifold apparatus for stratifying Exhaust Gas Recirculation in an engine comprises multiple cylinders(3), intake manifolds(5), EGR pipes(7), and EGR valve units. Each cylinder comprises multiple intake ports(1). The intake manifolds connect the intake ports of each cylinder to form an air path. The EGR pipes are connected to the intake manifolds. The EGR valve units control the amount of EGR gas supplied from the EGR pipes to the intake manifolds.
Abstract:
본 발명의 실시예에 따른 입자상 물질 센서유닛은 전하를 띤 입자상 물질이 근처를 지날 때 반응하는 정전유도방식의 센서부, 전도성 패이스트를 통해서 상기 센서부가 일측에 부착되는 보호패드, 상기 보호패드에 형성되어 상기 센서부에서 부착된 입자상 물질을 태워서 제거하는 히터전극, 및 상기 보호패드에 형성되어 상기 센서부에서 발생되는 신호를 외부로 전달하는 센서전극을 포함할 수 있다.