公开(公告)号：KR1020020053351A

公开(公告)日：2002-07-05

申请号：KR1020000082964

申请日：2000-12-27

Applicant: 현대자동차주식회사

Inventor： 한광진

IPC: F01N3/10

CPC classification number: Y02A50/2322 ,  F01N3/18 ,  F01N9/00 ,  F01N2550/02 ,  F01N2560/025 ,  F01N2900/0416

Abstract: PURPOSE: A catalyst control method of exhaust gas for a vehicle is provided to prevent catalyst from being damaged by keeping the purification rate of catalyst for reducing exhaust gas. CONSTITUTION: The critical temperature threshold is set according to operation condition by modeling corresponding to characteristics of an oxygen sensor after catalyzing an engine(110), and compared with the reference value(120). The gradient is decreased with delaying time of lean decision gradient over the reference value(130), and the air fuel ratio is increased(140). Normal operation is decided below the reference value(150,160). The fuel amount is controlled by detecting the air fuel ratio to be rich or lean with the oxygen sensor. Instantaneous increase of exhaust temperature is prevented with lowering the gradient in deciding. Exhaust gas is reduced with keeping the purification rate of catalyst, and catalyst damage is prevented.

Abstract translation: 目的：提供一种用于车辆的废气的催化剂控制方法，以通过保持用于还原废气的催化剂的净化率来防止催化剂损坏。 构成：通过在催化发动机（110）之后对应于氧传感器的特性的模拟，根据操作条件设定临界温度阈值，并与参考值（120）进行比较。 梯度随着精确决策梯度的延迟时间超过参考值（130）而减小，空燃比增加（140）。 正常运行被确定为低于参考值（150,160）。 燃料量通过用氧传感器检测空气燃料比浓度或浓度来控制。 废气温度的瞬时增加可以通过降低梯度来决定。 在保持催化剂净化率的同时，减少废气，防止催化剂损坏。

公开(公告)号：KR1019900004360B1

公开(公告)日：1990-06-23

申请号：KR1019870002734

申请日：1987-03-25

Applicant: 현대자동차주식회사

Inventor： 신현찬 ,  한광진

IPC: F01N3/22

CPC classification number: Y02A50/2322

Abstract: The exhanst gas purifying apparatus, which reburns the incomplete combustion gas of engine, controls reburning time by the state of engine temperature, improves the engine efficiency, and reduces discharging of toxic gas. The apparatus includes cooling chamber 91) of intake manifold (10), which has 2 way type temperature valve (2) and filter (3) held temperature valve (4), connection pipes (9)(7), and exhaust manifold (14) with catalytic convertor (15), air cleaner (13).

Abstract translation: 重新燃烧发动机不完全燃烧气体的前排气体净化装置根据发动机温度控制再燃时间，提高发动机效率，减少有毒气体的排放。 该装置包括具有二通式温度阀（2）和过滤器（3）保持的温度阀（4），连接管（9）（7）和排气歧管（14）的进气歧管（10）的冷却室91） ）与催化转化器（15），空气净化器（13）。

公开(公告)号：KR1020040022961A

公开(公告)日：2004-03-18

申请号：KR1020020054561

申请日：2002-09-10

Applicant: 현대자동차주식회사

Inventor： 한광진

IPC: F02D41/08

CPC classification number: F02D41/08 ,  F02D41/0045 ,  F02D2009/0223

Abstract: PURPOSE: A method for setting up an idle fuel amount by density of evaporation gas is provided to control an amount of fuel supplied in the case that an engine is idle. CONSTITUTION: A temperature of cooling water and the time elapsed after starting an engine are measured to judge whether the engine is in an idle state(S11). A pressure of a fuel tank is measured(S13). The density of evaporation gas generated from fuel is measured by the measured pressure of the fuel tank and the temperature of cooling water(S15). A compensation value for idle fuel amount is set up through the measured density of the evaporation gas(S17). An idle fuel amount is decided by applying the fuel amount compensation value to the idle fuel amount(S19).

Abstract translation: 目的：提供一种用于通过蒸发气体的密度设定怠速燃料量的方法，以控制在发动机怠速的情况下供应的燃料量。 结论：测量冷却水的温度和起动发动机之后经过的时间，以判断发动机是否处于空转状态（S11）。 测量燃料箱的压力（S13）。 燃料产生的蒸发气体的密度通过燃料箱的测量压力和冷却水的温度来测量（S15）。 通过测量的蒸发气体的密度来建立怠速燃料量的补偿值（S17）。 通过将燃料量补偿值应用于怠速燃料量来决定怠速燃料量（S19）。