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公开(公告)号：US11319609B2
公开(公告)日：2022-05-03
申请号：US16530696
申请日：2019-08-02
发明人： Sung Hwan Kim , Chan Woo Kim
摘要： Steel for a crankshaft includes 0.37 to 0.42 wt % of carbon (C), 0.55 to 0.70 wt % of silicon (Si), 1.45 to 1.65 wt % of manganese (Mn), 0.025 wt % or less (excluding 0 wt %) of phosphorus (P), 0.020 to 0.035 wt % of sulfur (S), 0.15 to 0.30 wt % of chromium (Cr), 0.035 to 0.055% of vanadium (V), and the remainder of Fe and other inevitable impurities. The steel for a crankshaft has strength that is maintained high even when reducing the amount of vanadium.
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公开(公告)号：US10293733B2
公开(公告)日：2019-05-21
申请号：US15379132
申请日：2016-12-14
发明人： Byung Seok Kong , Kwan Woo Lee , Sung Hwan Kim
摘要： A cup holder may include a holder body having a holding groove opened at an upper portion thereof, and provided such that a container is inserted into the holding groove, a guide integrally or monolithically formed in the holder body with an elastic adjustment body interposed therebetween, so as to protrude inward from the holding groove, the guide tightly supporting a side of the container in a state in which the guide protrudes inward from the holding groove, and the elastic adjustment body integrally or monolithically formed in the guide and the holder body so as to provide an elastic restoring force in order for the guide to elastically protrude.
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公开(公告)号：US20230382189A1
公开(公告)日：2023-11-30
申请号：US17972131
申请日：2022-10-24
发明人： Jae Sik Choi , Young Tae Song , Byeong Moo Jang , Dong Won Yeon , Sung Hwan Kim , Sung Young Lee , Byung Guk An
CPC分类号： B60H1/2225 , H05B3/06 , B60H1/2218 , F24H3/0441 , H05B2203/005 , H05B2203/016 , H05B2203/017
摘要： The present disclosure provides a split heater apparatus and a method of manufacturing the same, the split heater apparatus being capable of dividing a heating region into zones, heating the zones individually, and having components capable of being simply assembled, such that the number of components and the number of assembly processes are reduced.
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公开(公告)号：US20220194238A1
公开(公告)日：2022-06-23
申请号：US17509737
申请日：2021-10-25
发明人： Young Jin Jang , Sung Hwan Kim , Won Yong Sung , Dong Jun Lee , Hye Seung Kim
摘要： A vehicle battery charging system includes a main battery, an auxiliary battery, an integrated converter that includes a high voltage charging device that supplies power to the main battery and a low voltage charging device that supplies power to the auxiliary battery, a solar cell that converts sunlight into electrical energy, a solar cell converter that converts an output of the solar cell into a voltage corresponding to a voltage of the auxiliary battery and outputs the converted voltage to the auxiliary battery, and a switching device that switches between the integrated converter and external power and the integrated converter and the solar cell, wherein the switching device connects the integrated converter and the solar cell in a solar cell only charging mode in which the auxiliary battery is charged by the solar cell.
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公开(公告)号：US11609278B2
公开(公告)日：2023-03-21
申请号：US17313307
申请日：2021-05-06
发明人： Soon Myung Kwon , Sae Rom Kim , Sung Hwan Kim
摘要： An apparatus for determining a sensing error of a LDC, which controls and senses an output and an output cutoff of a first current inputted to a first load of a vehicle and an output and an output cutoff of a second current for charging a battery, includes a battery control device that senses the second current and a third current for discharging the battery; a power control device that receives the first current, the second current, and the third current and calculates a fourth current inputted to a second load for controlling the vehicle driving by controlling an operation of switching element; and a controller that determines whether the sensing error of the LDC occurs based on the first current, the second current, the third current, and the fourth current.
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