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公开(公告)号：US20210239209A1
公开(公告)日：2021-08-05
申请号：US16918866
申请日：2020-07-01
发明人： Jong Yun Park , Sung Wha Hong , Hang Chul Cho
摘要： An actuator for a transmission may include a shift fork coupled to a sleeve; a ball screw mounted to pass through a portion of the shift fork; and at least a guide shaft mounted to pass through a portion of the shift fork to be parallel to the ball screw.
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公开(公告)号：US11054029B2
公开(公告)日：2021-07-06
申请号：US16655456
申请日：2019-10-17
发明人： Hang Chul Cho
IPC分类号： F16H63/16 , F16H25/20 , F16H63/32 , F16H63/34 , F16H61/26 , B60T1/00 , F16H63/30 , F16H61/28
摘要： A shifting actuator for a transmission includes: a screw shaft; a screw nut which threadedly engages the screw shaft and linearly moves along the screw shaft; a guide for guiding movement of the screw nut; a control finger integrally formed with the screw nut; and a first slider and a second slider, which are disposed parallel to each other and adapted to be selected by the control finger so as to be linearly slidable in an axial direction parallel to a longitudinal direction of the screw shaft.
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公开(公告)号：US11815179B2
公开(公告)日：2023-11-14
申请号：US16918866
申请日：2020-07-01
发明人： Jong Yun Park , Sung Wha Hong , Hang Chul Cho
CPC分类号： F16H63/304 , F16H25/2204 , F16H63/062 , F16H63/32 , F16H2025/204 , F16H2063/3063
摘要： An actuator for a transmission may include a shift fork coupled to a sleeve; a ball screw mounted to pass through a portion of the shift fork; and at least a guide shaft mounted to pass through a portion of the shift fork to be parallel to the ball screw.
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公开(公告)号：US11181173B1
公开(公告)日：2021-11-23
申请号：US17039354
申请日：2020-09-30
发明人： Jong Yun Park , Hang Chul Cho , Sang Bum Baek , Byung Dae Choi , Seong Eun Yun , Joon Lee , Sung Wha Hong , Hyeon Jin Kim
IPC分类号： B60K1/00 , F16H37/04 , B60K17/08 , F16D21/00 , B60K17/02 , F16D13/00 , F16D11/00 , F16D41/00
摘要： A powertrain for an electric vehicle, may include: an input shaft and an output shaft mounted in parallel to each other; first and second power transmission mechanisms provided to transmit power from the input shaft to the output shaft at two gear ratios different from each other; a one-way clutch included in the first power transmission mechanism; a friction clutch included in the second power transmission mechanism; and a bypass mechanism provided to form a power transmission path that bypasses the one-way clutch and a power transmission path that bypasses the friction clutch.
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公开(公告)号：US11305636B1
公开(公告)日：2022-04-19
申请号：US17318663
申请日：2021-05-12
发明人： Hang Chul Cho
摘要： A power transmission apparatus of a hybrid electric vehicle may include, a first shaft fixedly connected to an engine, a second shaft selectively connectable to the first shaft and fixedly connected to a motor-generator, a third shaft disposed on a same axis with the first shaft and selectively connectable to the second shaft, a fourth shaft disposed coaxially with the third shaft without rotational interference therebetween, a fifth shaft disposed in parallel with the third shaft and the fourth shaft and externally gear-meshed with the third shaft and the fourth shaft, a sixth shaft disposed in parallel with the third shaft and the fourth shaft and externally gear-meshed with the third shaft and the fourth shaft, a planetary gear set having three elements, one element being fixedly connected to the second shaft, another element being selectively connectable to a transmission housing, and a remaining element being fixedly connected to the fourth shaft, and four gear sets forming external gear engagements between the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft and the sixth shaft.
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公开(公告)号：US11465487B2
公开(公告)日：2022-10-11
申请号：US17321047
申请日：2021-05-14
发明人： Hang Chul Cho
摘要： A power transmission apparatus of a hybrid electric vehicle may include a first shaft fixedly connected to an engine, a second shaft selectively connectable to the first shaft and fixedly connected to a motor-generator, a third shaft disposed on a same axis with the first shaft and selectively connectable to the second shaft, a fourth shaft disposed coaxially with the third shaft without rotational interference therebetween, a fifth shaft disposed in parallel with the third and fourth shafts and externally gear-meshed with the third and fourth shafts, a planetary gear set having three elements, one element being fixedly connected to the second shaft, another element being selectively connectable to a transmission housing, and a remaining element being fixedly connected to the fourth shaft, and four gear sets forming gear engagements between the first shaft, the second shaft, the third shaft, the fourth shaft and the fifth shaft.
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公开(公告)号：US11285799B1
公开(公告)日：2022-03-29
申请号：US17360246
申请日：2021-06-28
发明人： Hang Chul Cho
摘要： A power transmission apparatus of a hybrid vehicle using an engine and a motor-generator as a power source, includes a first shaft fixedly connected to an output side of the engine, a second shaft selectively connectable to the first shaft and fixedly connected to the motor-generator, a third shaft selectively connectable to the second shaft, a fourth shaft disposed without rotational interference in the external circumference of the third shaft, a fifth shaft externally geared with the third and fourth, a sixth shaft externally geared with the fourth shaft, a planetary gear set including first, second, and third rotation elements, and one of the three rotation elements is fixedly connected to the second shaft, the other rotation element is selectively connectable to a transmission housing, and the other rotation element is fixedly connected to the fourth, and four gear trains forming an external gear connection between the first, second, third, fourth, fifth and sixth shafts.
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