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公开(公告)号：US20220324550A1
公开(公告)日：2022-10-13
申请号：US17516168
申请日：2021-11-01
发明人： Jin Hyuck Heo , Kyu Won Kim , Min Woo Han , Jong Ho Lee
摘要： A control system for operating an air vehicle for urban air mobility (UAM) is arranged such that when a steering operation for a steering wheel and a stroke operation for an accelerator pedal and a brake pedal are performed for operating the air vehicle for UAM, haptic feedback providing notification of any operational limitations is provided to a driver, so that operation stability and convenience of the driver are secured and stable steering, acceleration, and deceleration of the air vehicle are performed.
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公开(公告)号：US11608107B2
公开(公告)日：2023-03-21
申请号：US16805207
申请日：2020-02-28
申请人： HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
发明人： Kyu Won Kim , Chung Choo Chung , Yong Woo Jeong , Seung Hi Lee
摘要： A motor driven power steering system includes: a power source for generating a steering assistance force assisting the steering of a vehicle; a transfer gear positioned between a power source and a column for transferring the steering assistance force generated by the power source to the column; a parameter estimation unit for estimating a friction parameter of a dynamic friction model based on the actual friction torque actually generated in the transfer gear; and a state estimation unit for calculating a state variable of the dynamic friction model based on a contact surface moving speed of the transfer gear and for estimating expected friction torque according to the dynamic friction model by using the calculated state variable and the friction parameter of the dynamic friction model estimated by the parameter estimation unit.
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公开(公告)号：US11447176B2
公开(公告)日：2022-09-20
申请号：US16588397
申请日：2019-09-30
发明人： Dong Hyun Hwang , Jin Hyuck Heo , Kyu Won Kim
摘要： A system and method for detecting a hands-off state of a steering wheel may include acquiring, by a controller, a steering torque, a steering angle and a steering angular speed while driving of a vehicle, determining, by the controller, a variance value of the steering angular speed through cumulation for a designated time, determining, by the controller, a difference value between a steering angular speed estimated through a steering system model determined on an assumption that the steering wheel is in the hands-off state and a measured steering angular speed through cumulation for a designated time, when the variance value of the steering angular speed is less than a first threshold value, and divisionally determining, by the controller, whether or not the steering wheel is in the hands-off state or in the hands-on state according to the difference value between the measured and estimated steering angular speeds.
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公开(公告)号：US20210122412A1
公开(公告)日：2021-04-29
申请号：US16805207
申请日：2020-02-28
申请人： HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
发明人： Kyu Won Kim , Chung Choo Chung , Yong Woo Jeong , Seung Hi Lee
IPC分类号： B62D5/04
摘要： A motor driven power steering system includes: a power source for generating a steering assistance force assisting the steering of a vehicle; a transfer gear positioned between a power source and a column for transferring the steering assistance force generated by the power source to the column; a parameter estimation unit for estimating a friction parameter of a dynamic friction model based on the actual friction torque actually generated in the transfer gear; and a state estimation unit for calculating a state variable of the dynamic friction model based on a contact surface moving speed of the transfer gear and for estimating expected friction torque according to the dynamic friction model by using the calculated state variable and the friction parameter of the dynamic friction model estimated by the parameter estimation unit.
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