公开(公告)号：US20240286512A1

公开(公告)日：2024-08-29

申请号：US18545068

申请日：2023-12-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiya HASHIMOTO ,  Masato MAEMURA ,  Shogo TSUGE ,  Ryosuke IKEMURA

IPC: B60L53/62 ,  B60L53/122 ,  B60L53/39 ,  B60L53/68 ,  B60L58/12 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80

CPC classification number: B60L53/62 ,  B60L53/122 ,  B60L53/39 ,  B60L53/68 ,  B60L58/12 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  B60L2240/545 ,  B60L2240/547

Abstract: The power transmission electronic control unit includes power transmission device information related to the power transmission device of the supply device, power reception device information related to one or more power reception devices provided in the vehicle, state information related to the state of the battery of the vehicle, and determines the amount of electric power to be supplied to the vehicle based on the positional relationship between the power transmitting device and the power receiving device based on the power transmitting device information, the power receiving device information, and the state information.

公开(公告)号：US20240258835A1

公开(公告)日：2024-08-01

申请号：US18409326

申请日：2024-01-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masato MAEMURA ,  Toshiya HASHIMOTO ,  Shogo TSUGE ,  Ryosuke IKEMURA

IPC: H02J50/40 ,  B60L53/122 ,  H01F38/14 ,  H02J50/12

CPC classification number: H02J50/402 ,  B60L53/122 ,  H01F38/14 ,  H02J50/12 ,  H01F2038/146 ,  H02J2310/48

Abstract: A wireless power transfer system include: a supply device provided on a road; and a vehicle having a power reception device, the power reception device receiving power from the supply device and performing wireless transfer of the power to the vehicle. Further, the supply device includes: a primary coil; and a first short-range wireless communication device to communicate with the vehicle, the vehicle includes: a secondary coil; and a second short-range wireless communication device to communicate with the supply device, the first short-range wireless communication device is provided on a rear side in a traveling direction of the vehicle with respect to the primary coil, and the second short-range wireless communication device is provided on a front side in the traveling direction of the vehicle with respect to the secondary coil.

公开(公告)号：US20240253482A1

公开(公告)日：2024-08-01

申请号：US18544684

申请日：2023-12-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiya HASHIMOTO ,  Masato Maemura ,  Shogo Tsuge ,  Ryosuke Ikemura

IPC: B60L53/122 ,  B60L53/126 ,  B60L53/30 ,  B60L53/66 ,  B60L53/68

CPC classification number: B60L53/122 ,  B60L53/126 ,  B60L53/32 ,  B60L53/66 ,  B60L53/68 ,  B60L2240/12

Abstract: A wireless power transfer system wirelessly transfers power from a supply device to a vehicle, the supply device including a primary device that transfers power and being provided on a road, the vehicle being equipped with a power reception device that includes a secondary device and traveling on the road by the power received from the supply device. Further, the supply device further includes: a processor, and the processor: acquires vehicle speed information indicating at least a speed of the vehicle; and sets a time for confirming magnetic coupling between the primary device and the secondary device based on the vehicle speed information.

公开(公告)号：US20240253481A1

公开(公告)日：2024-08-01

申请号：US18421991

申请日：2024-01-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiya HASHIMOTO ,  Masato MAEMURA ,  Shogo TSUGE ,  Ryosuke IKEMURA

IPC: B60L53/122

CPC classification number: B60L53/122

Abstract: A wireless power transfer system includes: a supply device that is provided on a road and transfers power; and a vehicle that is equipped with a power reception device and travels on the road, so that the power reception device wirelessly receives power from the supply. Further, the vehicle includes a processor, which determines whether a total number of circuits having an interruption function related to power transfer is two or more in the vehicle and the supply device; and reduces an amount of power to be transferred by the supply device to the vehicle in a case where the total number of the circuits having the interruption function is less than two.

公开(公告)号：US11975621B2

公开(公告)日：2024-05-07

申请号：US18512048

申请日：2023-11-17

Applicant: ELECTRIC POWER SCIENCE RESEARCH INSTITUTE OF GUANGXI POWER GRID CO., LTD. ,  CHONGQING UNIVERSITY

Inventor： Xiaorui Wu ,  Yue Sun ,  Xiaofei Li ,  Jing Xiao ,  Shaonan Chen ,  Yue Zuo ,  Yuhong Mo ,  Ning Wu ,  Wenlan Gong ,  Shuai Han ,  Weidong Chen ,  Min Guo ,  Xiaoxuan Guo ,  Chunsen Tang

IPC: B60L53/122 ,  B60L53/39 ,  H01F27/24 ,  H01F38/14 ,  H02J50/90

CPC classification number: B60L53/122 ,  B60L53/39 ,  H01F27/24 ,  H01F38/14 ,  H02J50/90

Abstract: The present disclosure relates to the field of EV-DWPT (electric vehicle dynamic wireless power transfer), and specifically discloses a double solenoid EV-DWPT system and a parameter optimization method thereof. The system is provided with a magnetic coupling mechanism, comprising a transmitting structure and a receiving structure. The transmitting structure includes a plurality of double solenoid transmitting rails arranged equidistantly along a road direction. Each double solenoid transmitting rail includes a square tubular magnetic core perpendicular to the road surface, and transmitting solenoids wound spirally using one and the same Litz wire wound in opposite directions. The present disclosure proposes a magnetic coupling mechanism with a double solenoid structure, provides a specific parameter optimization design method, completes the analysis of the system power transmission topology and the electrical parameter design, greatly reduces power fluctuations of the system rail switching domain, and improves the system's anti-offset capability.

公开(公告)号：US20240116375A1

公开(公告)日：2024-04-11

申请号：US18235961

申请日：2023-08-21

Applicant: UT-Battelle, LLC

Inventor： Erdem Asa ,  Veda Prakash Galigekere ,  Omer C. Onar ,  Burak Ozpineci ,  Jason L. Pries ,  Gui-Jia Su

IPC: B60L53/122 ,  B60L53/60 ,  H02J7/00 ,  H02J50/12 ,  H02J50/80 ,  H02M5/293

CPC classification number: B60L53/122 ,  B60L53/60 ,  H02J7/0047 ,  H02J50/12 ,  H02J50/80 ,  H02M5/293 ,  B60L2210/20 ,  B60L2210/30 ,  H02J2310/48

Abstract: A method for wirelessly or conductively (non-wireless) providing AC or DC power in AC or DC load applications and bidirectional applications.

公开(公告)号：US20240067019A1

公开(公告)日：2024-02-29

申请号：US18239429

申请日：2023-08-29

Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY

Inventor： Hao WANG ,  Lukai GUO

IPC: B60L53/38 ,  B60L53/122 ,  H02J50/10

CPC classification number: B60L53/38 ,  B60L53/122 ,  H02J50/10

Abstract: A partially magnetized pavement is placed above a transmitter coil for improved efficiency of electric vehicles charging through wireless power transfer. The partially magnetized pavement includes a non-magnetized pavement portion positioned vertically above the transmitter coil and a magnetized pavement portion positioned vertically above a first area surrounded by the inner dimension of the transmitter coil and a second area outside the outer dimension of the transmitter coil. In some cases, the partially magnetized pavement further includes a transmitter coil having the inner dimension and the outer dimension and a capacitor electrically coupled to the transmitter coil to form a resistor-inductor-capacitor circuit at a system level. In some cases, a plurality of electric vehicle charging units are positioned in a center of a lane in a roadway and separated from one another by a predetermined distance along a direction of the lane in the roadway.

公开(公告)号：US11909222B2

公开(公告)日：2024-02-20

申请号：US17194215

申请日：2021-03-06

Applicant: Ningbo Geely Automobile Research & Development Co., Ltd.

Inventor： Alexander Berggren ,  Gabriel Samuelsson

IPC: H02J50/10 ,  H02J50/70 ,  B60L53/122 ,  H01F38/14 ,  H02J7/02

CPC classification number: H02J50/10 ,  B60L53/122 ,  H01F38/14 ,  H02J7/02 ,  H02J50/70

Abstract: A device for a wireless power transfer system includes a housing and a conductor wire forming a coil arranged in the housing. The coil has a first topology. The conductor wire is rearrangeable such that the coil is given a second topology instead of the first topology. The first topology and the second topology are different from each other.

公开(公告)号：US11874423B2

公开(公告)日：2024-01-16

申请号：US17077124

申请日：2020-10-22

Applicant: WiTricity Corporation

Inventor： Hans Peter Widmer ,  Lukas Sieber ,  Andreas Daetwyler

IPC: G01V3/08 ,  G01V3/10 ,  H02J50/10 ,  H02J50/90 ,  B60L53/122 ,  B60L53/124 ,  B60L53/65 ,  H02J50/60 ,  H05B1/02 ,  B60L53/38 ,  G06F18/21

CPC classification number: G01V3/088 ,  B60L53/122 ,  B60L53/124 ,  B60L53/38 ,  B60L53/65 ,  G01V3/101 ,  G06F18/217 ,  H02J50/10 ,  H02J50/60 ,  H02J50/90 ,  H05B1/0288 ,  G06V2201/08

Abstract: A multi-purpose detection circuit for object detection and vehicle position determination is described. For example, the circuit is configurable for detecting foreign metallic objects, living objects, and a vehicle or type of vehicle above an inductive wireless power transmitter. The circuit is also configurable for determining the vehicle's position relative to the inductive wireless power transmitter. An example apparatus includes a measurement circuit including a multiplexer, electrically connected to a plurality of inductive and capacitive sense circuits, for measuring one or more electrical characteristics in each of the inductive and capacitive sense circuits according to a predetermined time multiplexing scheme. The apparatus further includes a control and evaluation circuit for evaluating the measured electrical characteristics and determining at least one of a presence of a metallic object, a living object, a vehicle, or a type of vehicle, and a vehicle position based on changes in the measured electrical characteristics.

公开(公告)号：US20230411985A1

公开(公告)日：2023-12-21

申请号：US18210336

申请日：2023-06-15

Applicant: Daifuku Co., Ltd.

Inventor： Daizo Ninomiya ,  Atsushi Miyazaki ,  Hiroshi Matsubara ,  Hiroshi Onishi

IPC: H02J7/00 ,  H02J50/10 ,  B60L53/62 ,  B60L53/122

CPC classification number: H02J7/00712 ,  H02J7/0047 ,  H02J50/10 ,  B60L53/62 ,  B60L53/122 ,  B60L2210/30 ,  B60L2240/549 ,  B60L2240/547

Abstract: A charger includes a power regulator that regulates power supplied from a power supply and outputs the power to a power storage device, a current detector that detects a battery current supplied to the power storage device, a voltage detector that detects a battery voltage, a controller that performs feedback control over the power regulator based on the battery current and the battery voltage, a feedback signal generator that generates, based on the battery current and the battery voltage, a power feedback signal usable for constant current control and constant voltage control, and a feedback calculator that generates, based on a difference between a command value and the power feedback signal, a control signal to control the power regulator.