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    • 7. 发明授权
    • Desulfurization method for LNT system
    • LNT系统脱硫方法
    • US08664139B2
    • 2014-03-04
    • US13315003
    • 2011-12-08
    • Jin Ha LeeJae Beom ParkJeong Ho KimJin Woo ParkSoon Hyung Kwon
    • Jin Ha LeeJae Beom ParkJeong Ho KimJin Woo ParkSoon Hyung Kwon
    • B01J38/14
    • F02D41/028F02D41/029F02D2200/0812
    • A desulfurization method of a nitrogen oxide absorption catalyst when diesel is used may include determining how many times a regeneration of a diesel particulate filter (DPF) is completed, ending a DPF regeneration, if the number of times of the DPF regeneration reaches a predetermined value and entering into a desulfurization mode to desulfurize the DPF, ending the desulfurization mode after the desulfurization mode is performed for a predetermined time, and calculating a particulate matters (PM) amount that is trapped in the DPF after the desulfurization, compensating the trapped PM amount, and determining a time of the DPF regeneration. A desulfurization timing is determined based on the number of times that the DPF is regenerated to be able to simplify the desulfurization logic and also reduce the memory of ECU, when the LNT catalyst is poisoned by a small amount of sulfur included in exhaust gas.
    • 当使用柴油时,氮氧化物吸收催化剂的脱硫方法可以包括如果DPF再生的次数达到预定值,则确定柴油机微粒过滤器(DPF)的再生次数完成多少次,结束DPF再生 进入脱硫模式,对DPF进行脱硫,在脱硫模式进行规定时间后结束脱硫模式,计算脱硫后的DPF中捕集的颗粒物质(PM)的量,补偿被捕获的PM量 ,并确定DPF再生的时间。 当LNT催化剂被废气中包含的少量硫中毒时,基于DPF再生次数能够简化脱硫逻辑并减少ECU的存储量来确定脱硫时间。
    • 9. 发明申请
    • EXHAUST GAS POST PROCESSING METHOD
    • 排气后处理方法
    • US20120131905A1
    • 2012-05-31
    • US13168217
    • 2011-06-24
    • Soon Hyung Kwon
    • Soon Hyung Kwon
    • F01N3/18
    • F02D41/1446F01N3/021F01N3/103F01N3/2066F02D41/0225F02D41/024F02D41/1447F02D41/22F02D41/405F02D2200/021F02D2200/0414F02D2200/101F02D2200/501F02D2200/703Y02A50/2325Y02T10/24Y02T10/26Y02T10/44
    • An exhaust gas post processing method may include determining whether a driving condition is included in an area for monitoring a rapid-heat-up (RHU) logic process that is used to quickly raise a temperature of exhaust gas passing an exhaust line, detecting on/off signal that performs or stops the rapid-heat-up logic process, determining whether an injection signal for performing the rapid-heat-up logic process is activated or not, detecting error of components for performing the rapid-heat-up logic process, and detecting the temperature of the exhaust during the rapid-heat-up logic process and comparing the detected temperature with a modeled value.Accordingly, malfunction of the rapid-heat-up logic process is prevented before hand to realize the rapid-heat-up logic process securely, and the malfunction by the error signal is informed to the driver such that the on board diagnosis function is improved.
    • 废气后处理方法可以包括确定驱动条件是否包括在用于监视用于快速升高通过排气管线的废气的温度的快速加热(RHU)逻辑过程的区域中, 关闭信号,执行或停止快速加热逻辑处理,确定用于执行快速加热逻辑处理的喷射信号是否被激活,检测用于执行快速加热逻辑处理的组件的误差, 以及在快速加热逻辑处理期间检测排气的温度并将检测到的温度与建模值进行比较。 因此,防止快速加热逻辑处理的故障,从而可靠地实现快速升温逻辑处理,并且通过误差信号的故障被通知给驾驶员,使得车载诊断功能得到改善。
    • 10. 发明授权
    • System for controlling urea injection quantity of vehicle and method thereof
    • 车辆尿素喷射量控制系统及其方法
    • US08181448B2
    • 2012-05-22
    • US12357139
    • 2009-01-21
    • Soon Hyung Kwon
    • Soon Hyung Kwon
    • F01N3/00F01N3/10
    • F01N3/208F01N2240/20F01N2560/026F01N2560/06F01N2560/08F01N2560/14Y02A50/2325Y02T10/24
    • A system for controlling urea injection quantity of a vehicle, may include an SCR device, the SCR device purifying NOx, a pump configured to supply the SCR device with a urea solution of a urea tank through a urea supply line, a dosing injector disposed on the exhaust pipe at upstream side of the SCR device and injecting the urea solution, and a control portion that closes the dosing injector not to exhaust the urea solution that is charged in the urea supply line if operation of the engine is stopped and outside temperature is higher than a predetermined base temperature, and that stops the pump and opens the dosing injector to exhaust the urea solution charged in the urea supply line to the urea tank if operation of the engine is stopped and the outside temperature is equal to or lower than the predetermined base temperature.
    • 一种用于控制车辆的尿素喷射量的系统可以包括SCR装置,SCR装置净化NOx,构造成通过尿素供应管线将尿素罐的尿素溶液供应到SCR装置的泵,配置在 SCR装置的上游侧的排气管,喷射尿素溶液;以及控制部,该控制部在关闭发动机的运转停止而外部温度为止的情况下,关闭给药注射器而不排出在尿素供给管路中被填充的尿素溶液 高于预定的基础温度,并且如果发动机的运转停止并且外部温度等于或低于所述尿素罐,则停止泵并打开计量喷射器以将装入尿素供给管线的尿素溶液排出到尿素罐 预定基础温度。