-
公开(公告)号:US12132423B2
公开(公告)日:2024-10-29
申请号:US18000902
申请日:2020-06-18
发明人: Tatsuya Mori , Akira Furukawa , Kenta Kubo
CPC分类号: H02P21/05 , B62D5/0409 , B62D5/046 , H02P27/08
摘要: To provide a controller for AC rotary electric machine which can suppress the increase in the unwanted sound while reducing noise. A controller for AC rotary electric machine switches n pieces of zero phase candidate voltage values in order for every switching period and calculate as a zero phase voltage value; by defining a deviation between the zero phase voltage value and a time lag zero phase voltage value delaying by a j times value of the switching period, as a zero phase time lag deviation value; j is a natural number which minimizes a difference between a half period of a mechanical resonance period, and the j times value of switching period; an effective value of the zero phase time lag deviation value becomes small, compared with an effective value of AC component of the zero phase voltage value.
-
公开(公告)号:US12128966B2
公开(公告)日:2024-10-29
申请号:US17295545
申请日:2019-11-19
申请人: Robert Bosch GmbH
发明人: Juergen Hoersch , Armin Nagel , Jan Beck , Stephanus Sebastiaan Bester , Karl-Heinz Urban , Bjoern Volpp , Christian Held , Matthias Buerckert
CPC分类号: B62D5/0424 , B62D5/0448 , F16C17/02 , F16C33/06 , F16C2326/01
摘要: The disclosure relates to a steer-by-wire system for a motor vehicle including a steering rod, an electric servo unit configured to move the steering rod, and a sliding bearing which radially supports the steering rod in a housing. The housing, the sliding bearing, and the steering rod have complementary geometries whereby the steering rod is prevented from rotating. The sliding bearing includes multiple segments in the circumferential direction, at least one segment of the multiple segments is a sliding bearing location for the radial support. At least one segment of the multiple segments is a first supporting element configured to prevent rotation in one direction of rotation. At least one segment of the multiple segments is a second supporting element configured to prevent rotation in the opposite direction of rotation.
-
公开(公告)号:US12128965B2
公开(公告)日:2024-10-29
申请号:US18094345
申请日:2023-01-07
申请人: HL MANDO CORPORATION
发明人: KwangHyung Lee
摘要: The disclosure relates to a steering control device and method. Specifically, according to the disclosure, a steering control device comprises a first steering control module controlling a first reaction force motor to generate a reaction force torque for a steering wheel through a first inverter and a second steering control module controlling a second reaction force motor to generate a reaction force torque for the steering wheel through a second inverter. The first steering control module or the second steering control module generates the reaction force torque by conducting one of the first inverter and the second inverter when the first inverter and the second inverter fail.
-
公开(公告)号:US20240343297A1
公开(公告)日:2024-10-17
申请号:US18664883
申请日:2024-05-15
发明人: Tushar Chugh , David Dahlgren , Fredrik Bruzelius
CPC分类号: B62D5/0463 , B62D6/008 , B62D6/10 , B62D15/025
摘要: In one or more embodiments described herein, devices, systems, methods and/or apparatuses are described that can facilitate provision of a single motor torque request based on a driver assistance system pinion angle request. The motor torque request can be generated absent arbitration between two or more requests from two or more different controller components. A device can comprise a steering control system that generates a motor torque request based on a single request from a single first controller component.
-
5.
公开(公告)号:US20240343293A1
公开(公告)日:2024-10-17
申请号:US18577835
申请日:2022-06-28
申请人: aiMotive Kft.
发明人: Roland Kohári
摘要: The invention is a steering system for use in test driving of an autonomous vehicle, comprising—a manual steering means configured to manually steer the vehicle, —a steering axle (30) attached to the manual steering means, and—a direct drive motor (35) controllably affecting a torque on the steering axle (30), wherein the direct drive motor (35) has an axis (37) of rotation being coaxial with the steering axle (30). The steering system is characterized in that—it has at least two predefined states characterizing different driving conditions, wherein each predefined state has at least one predefined disengagement limit, and—it further comprises a controller assembly operable based on a control parameter, the controller assembly being configured to detect an actual predefined state of the vehicle, and the controller assembly initiates a disengagement of the direct drive motor (35) if, based on a difference value between a prescribed value of the control parameter and an actual value of the control parameter, the at least one predefined disengagement limit corresponding to the actual predefined state is reached. The invention further relates to a disengagement method, and a data processing system, a computer program product and a computer readable medium carrying out the method.
-
公开(公告)号:US12116054B2
公开(公告)日:2024-10-15
申请号:US17429703
申请日:2019-12-16
发明人: Yukio Uchida , Toshiro Yoda , Shogo Ishikawa , Satoshi Kubosawa
摘要: A steering device includes: a steering mechanism including a steering shaft, and a transmitting mechanism; and a controller including a first hydraulic passage state judging section, a first electric motor control section, and a second electric motor control section; the first hydraulic passage state judging section configured to judge a state of the hydraulic fluid in a first hydraulic passage in which the hydraulic fluid discharged from the first pump flows, the first electric motor control section configured to control and drive the first electric motor based on a driving state of a vehicle, and the second electric motor control section configured to increase a rotation number of the second electric motor when the first hydraulic passage state judging section judges that a supply of the hydraulic fluid in the first hydraulic passage is deficient.
-
7.
公开(公告)号:US20240336298A1
公开(公告)日:2024-10-10
申请号:US18741953
申请日:2024-06-13
申请人: Jilin University
发明人: Junnian WANG , Yitong WANG , Zidong ZHOU , Zongwen ZHANG , Zhe LIU , Yujing CAO
IPC分类号: B62D3/06 , B60G3/26 , B60G7/00 , B60G15/06 , B60K7/00 , B60K17/04 , B60K17/22 , B60L50/60 , B60T1/06 , B62D5/04 , B62D7/18 , B62D7/20
CPC分类号: B62D3/06 , B60G3/26 , B60G7/005 , B60G15/062 , B60K7/0007 , B60K17/046 , B60K17/22 , B60T1/065 , B62D5/0403 , B62D5/0421 , B62D7/18 , B62D7/20 , B60G2200/144 , B60G2202/312 , B60G2204/129 , B60G2204/416 , B60G2206/124 , B60L50/60
摘要: A self-energy-storage wheel corner module integrating omni-directional redundant steering and energy regenerative suspension, including a wheel assembly, a suspension system having an unequal-length double wishbone suspension structure, a first steering system, a drive system, a braking system, a second steering system, an energy storage system and an actuator assembly. The first steering system is a primary steering system, and has low steering delay and excellent maneuverability at high speeds. The second steering system is a redundancy of the first steering system, and contributes to the omni-directional steering of the wheel assembly, which enhances the vehicle maneuverability. A motor of the second steering system also functions as another actuation motor of the actuator assembly in an idle state to enable the suppression and energy regeneration of the suspension vibration.
-
公开(公告)号:US12110067B2
公开(公告)日:2024-10-08
申请号:US17139186
申请日:2020-12-31
发明人: Kevin Boyle
CPC分类号: B62D5/0454 , B62D7/18 , B62D7/20 , F16C19/364 , F16H37/02 , F16H2702/02
摘要: An electric commercial vehicle power steering system includes an input shaft, an electric motor, and a planetary gear set, a drive coupling, and an output shaft. A first one of a sun gear, a planet carrier, and a ring gear of the planetary gear set is connected to and rotatable with a rotor of the electric motor, and a second one of the sun gear, the planet carrier, and the ring gear of the planetary gear set is connected to and rotatable with a first gear of the drive coupling. A second gear of the drive coupling is connected to and rotatable with the input shaft. A globoidal worm drive is arranged between the input shaft and the output shaft. The globoidal worm drive couples the input shaft to the output shaft such that the output shaft is rotatable with the input shaft via the globoidal worm drive.
-
公开(公告)号:US20240326900A1
公开(公告)日:2024-10-03
申请号:US18576879
申请日:2021-07-12
发明人: Xiaoliang Zhang , Sheng Yu
CPC分类号: B62D5/046 , B62D5/0481 , H02M3/158
摘要: A power source control circuit and a power steering system are provided. The power source control circuit comprises: a signal input circuit that includes at least two input ends, and each of the at least two input ends is used for collecting a first control signal which indicates whether an external device corresponding to the input end is abnormal; and a control circuit that is used for generating, according to the first control signals collected by each of the at least two input ends, a second control signal, which is used for controlling the turning-off of a power source.
-
公开(公告)号:US12097918B2
公开(公告)日:2024-09-24
申请号:US17696335
申请日:2022-03-16
发明人: Scott A Millsap , Gustavo M. Nunes , Omkar Karve , Joseph A LaBarbera , Michael S. Wyciechowski
CPC分类号: B62D6/10 , B62D5/0481
摘要: A system and method of hands-off signature detection may include applying a unique sinusoidal motor command to an EPS or handwheel actuator of a vehicle and monitoring attenuation of the unique sinusoidal motor command to determine if a user's hands are on or off of a handwheel of a vehicle. Attenuation of the unique sinusoidal motor command may occur due to the physical presence of a driver's hand(s) on the steering wheel.
-
-
-
-
-
-
-
-
-