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    COMPRESSOR CONTROL APPARATUS AND METHOD
    3.
    发明申请
    COMPRESSOR CONTROL APPARATUS AND METHOD 有权

    公开(公告)号：US20220297509A1

    公开(公告)日：2022-09-22

    申请号：US17522775

    申请日：2021-11-09

    申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

    发明人： Ji Wan Son ,  Chang Hwan Kim ,  Sang Hun Lee ,  Tae Woong Lim ,  Jin Sung Kim

    IPC分类号： B60H1/32

    摘要： A compressor control apparatus and method includes: a sensor configured to detect air conditioner operation state information necessary to control engagement and disengagement of a clutch of an air conditioner compressor; an electromagnetic coil in the clutch of the air conditioner compressor configured to perform clutch engagement upon receiving battery current; a microcomputer configured to determine whether the current air conditioner operation state satisfies a clutch engagement allowance condition or a clutch disengagement condition based on the air conditioner operation state information detected by the sensor and to output an operation signal based on the result of determination; and a switch configured to be turned on or off according to the operation signal output by the microcomputer and to control supply of the battery current to the electromagnetic coil such that clutch engagement or clutch disengagement is performed.

    AMMONIA PRODUCTION CATALYST AND AFTER TREATMENT SYSTEM
    9.
    发明申请
    AMMONIA PRODUCTION CATALYST AND AFTER TREATMENT SYSTEM 审中-公开

    公开(公告)号：US20200248606A1

    公开(公告)日：2020-08-06

    申请号：US16263508

    申请日：2019-01-31

    申请人： Hyundai Motor Company ,  Hyundai Motor Company

    发明人： Nahm Roh Joo ,  Chang Hwan Kim ,  ChangHo Jung

    IPC分类号： F01N3/20 ,  B01J23/44 ,  F01N13/00 ,  F01N3/10

    摘要： An after treatment system is disclosed. The after treatment system may include an exhaust pipe through which an exhaust gas flows; a three-way catalyst (TWC) mounted on the exhaust pipe and purifying HC, CO, and NOx contained in the exhaust gas, an ammonia production catalyst (APC) mounted on the exhaust pipe at a downstream of the TWC, storing NOx at a lean air/fuel ratio, and generating H2, releasing the stored NOx, and generating NH3 using the released NOx and the generated H2 at a rich air/fuel ratio, and a selective catalytic reduction (SCR) catalyst mounted on the exhaust pipe at a downstream of the APC, storing the NH3 generated in the TWC and the APC, and reducing the NOx contained in the exhaust gas using the stored NH3.

    Exhaust gas purification system for vehicle
    10.
    发明授权
    Exhaust gas purification system for vehicle 有权

    公开(公告)号：US11499465B2

    公开(公告)日：2022-11-15

    申请号：US17196316

    申请日：2021-03-09

    申请人： Hyundai Motor Company ,  KIA Motors Corporation

    发明人： Hyokyung Lee ,  Chang Hwan Kim

    IPC分类号： F01N9/00 ,  F01N3/10 ,  F01N3/28 ,  F02D41/06 ,  F02D41/14 ,  F02D41/02 ,  F01N13/00

    摘要： A vehicle exhaust gas purification system and a control method thereof that may effectively remove nitrogen oxides in an exhaust gas even in a cold state, which is the initial stage of an engine starting, is disclosed. A control method of an exhaust gas purification system of a vehicle may include: a step of performing a rich control for controlling a concentration of non-combusted fuel contained in the exhaust gas flowing into the housing to be a rich fuel directly after the starting of the engine; a step of performing a lean control for controlling the concentration of the non-combusted fuel contained in the exhaust gas flowing into the housing to be a lean fuel; a step of determining whether a temperature of the exhaust gas flowing into the housing is a predetermined temperature or more; and a step of performing a normal control for controlling the concentration of the non-combusted fuel contained in the exhaust gas flowing into the housing so that a lean fuel and a rich fuel are periodically repeated with a regular interval.