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公开(公告)号：US11338850B2
公开(公告)日：2022-05-24
申请号：US16123793
申请日：2018-09-06
发明人： Woo Je Sung , Jong Ho Lee , Seung Bum Cho
摘要： A method of operating a motor vehicle includes sensing a sensed torque based on a driver interaction with a steering wheel that is part of an electric power steering system, the sensed torque being sensed using a torque sensor, calculating driver steering wheel torque using state variables of a steering system model based on the electric power steering system, and controlling a difference between the driver steering wheel torque calculated from the steering system model and sensed torque sensed by the torque sensor to converge to zero through a controller.
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公开(公告)号：US11794810B2
公开(公告)日：2023-10-24
申请号：US17021258
申请日：2020-09-15
发明人： Seung Bum Cho , Woo Je Sung
IPC分类号： B62D15/02
CPC分类号： B62D15/024
摘要： The present disclosure relates to an apparatus and a method for estimating a steering angle of a vehicle, and an object of the present disclosure is to provide an apparatus and a method for estimating a steering angle of a vehicle capable of estimating an actual steering angle without using a steering angle sensor.
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公开(公告)号：US20210078632A1
公开(公告)日：2021-03-18
申请号：US17021258
申请日：2020-09-15
发明人： Seung Bum Cho , Woo Je Sung
IPC分类号： B62D15/02
摘要： The present disclosure relates to an apparatus and a method for estimating a steering angle of a vehicle, and an object of the present disclosure is to provide an apparatus and a method for estimating a steering angle of a vehicle capable of estimating an actual steering angle without using a steering angle sensor.
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公开(公告)号：US20190176885A1
公开(公告)日：2019-06-13
申请号：US16123793
申请日：2018-09-06
发明人： Woo Je Sung , Jong Ho Lee , Seung Bum Cho
IPC分类号： B62D6/10
摘要： A method of operating a motor vehicle includes sensing a sensed torque based on a driver interaction with a steering wheel that is part of an electric power steering system, the sensed torque being sensed using a torque sensor, calculating driver steering wheel torque using state variables of a steering system model based on the electric power steering system, and controlling a difference between the driver steering wheel torque calculated from the steering system model and sensed torque sensed by the torque sensor to converge to zero through a controller.
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公开(公告)号：US10167011B2
公开(公告)日：2019-01-01
申请号：US15232295
申请日：2016-08-09
发明人： Min Woo Han , Woo Je Sung , Jong Ho Lee , Sung Jun Kim , Kyung Soo Kim , Yong Hun Kim
摘要： A system for compensating for disturbance of a motor for motor driven power steering is provided. The system for compensating for disturbance of a motor for motor driven power steering compensates for the disturbance based on a closed loop based input value prediction model unit, separately predicts an input value from a command by a closed loop based input value prediction model unit, and compensates for disturbance in accordance with a desired disturbance frequency band when there is a difference between the predicted input value and an input value error-compensated by a feedback controller.
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公开(公告)号：US10377415B2
公开(公告)日：2019-08-13
申请号：US15376530
申请日：2016-12-12
发明人： Jong Ho Lee , Min Woo Han , Jin Hyuck Heo , Woo Je Sung
摘要： Disclosed is a method of controlling a motor driven power steering system (MDPS). The method includes multiple operations including a torque sensor failure determining operation of determining failure of the torque sensor according to existence of a torque sensor signal input from the torque sensor; a control module calculating operation of, when it is determined that the torque sensor has failure, receiving control signals from a steering angle sensor and a motor angle sensor and calculating a plurality of control modules including a basic assist generating module, an assist maintaining module, and an overshoot preventing module; and an MDPS motor driving operation of driving a motor of the MDPS based on motor torque calculated through the control module.
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公开(公告)号：US10224841B2
公开(公告)日：2019-03-05
申请号：US15283076
申请日：2016-09-30
发明人： Min Woo Han , Woo Je Sung , Jong Ho Lee , Kyung Soo Kim , Yong Hun Kim
摘要： A motor control system is provided for compensating disturbance. The system includes a controller that supplies an input voltage to a motor based on the difference between a current command value to a motor and an actual current of the motor. A motor modeling part outputs a motor output current based on an input voltage from the controller and a disturbance observation part is formed as a reverse model of the motor modeling part to remove current noise using a current differentiation filtering method. Additionally, a disturbance compensation amount determination part determines a disturbance compensation amount based on the disturbance estimated by the disturbance observation part.
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公开(公告)号：US20170166240A1
公开(公告)日：2017-06-15
申请号：US15232295
申请日：2016-08-09
发明人： Min Woo Han , Woo Je Sung , Jong Ho Lee , Sung Jun Kim , Kyung Soo Kim , Yong Hun Kim
CPC分类号： B62D5/046 , H02P6/08 , H02P6/28 , H02P23/0004
摘要： A system for compensating for disturbance of a motor for motor driven power steering is provided. The system for compensating for disturbance of a motor for motor driven power steering compensates for the disturbance based on a closed loop based input value prediction model unit, separately predicts an input value from a command by a closed loop based input value prediction model unit, and compensates for disturbance in accordance with a desired disturbance frequency band when there is a difference between the predicted input value and an input value error-compensated by a feedback controller.
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公开(公告)号：US20170110992A1
公开(公告)日：2017-04-20
申请号：US15283076
申请日：2016-09-30
发明人： Min Woo Han , Woo Je Sung , Jong Ho Lee , Kyung Soo Kim , Yong Hun Kim
CPC分类号： H02P6/08 , H02P21/0003 , H02P21/13
摘要： A motor control system is provided for compensating disturbance. The system includes a controller that supplies an input voltage to a motor based on the difference between a current command value to a motor and an actual current of the motor. A motor modeling part outputs a motor output current based on an input voltage from the controller and a disturbance observation part is formed as a reverse model of the motor modeling part to remove current noise using a current differentiation filtering method. Additionally, a disturbance compensation amount determination part determines a disturbance compensation amount based on the disturbance estimated by the disturbance observation part.
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