KR102611743B1 - 광학 스캐너를 위한 이중 샤프트 축방향 플럭스 모터 - Google Patents
광학 스캐너를 위한 이중 샤프트 축방향 플럭스 모터 Download PDFInfo
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
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- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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- G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
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- G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
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- H—ELECTRICITY
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- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Traffic Control Systems (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
도 2는 LiDAR 시스템과, 차량 인지 및 계획 시스템을 포함하는 다수의 다른 시스템 사이의 상호 작용을 예시하는 블록도를 도시한다.
도 3은 예시적인 LiDAR 시스템을 예시하는 블록도이다.
도 4는 예시적인 섬유-기반의 레이저 소스를 도시한 예시적인 블록도이다.
도 5a 내지 도 5c는 시야 내에 배치된 객체까지의 거리를 측정하기 위해 펄스 신호를 사용하는 예시적인 LiDAR 시스템을 도시한다.
도 6은 다양한 실시예에서 시스템, 장치 및 방법을 구현하는 데 사용되는 예시적인 장치를 예시하는 블록도이다.
도 7은 전통적인 검류계 디바이스를 도시한다.
도 8a 및 도 8b는 일부 실시예에 따른 예시적인 동력식 광학 스캐너의 사시도이다.
도 9a는 도 8a 및 도 8b의 예시적인 동력식 광학 스캐너의 단면 사시도이다.
도 9b는 도 8a 및 도 8b의 예시적인 동력식 광학 스캐너의 단면도이다.
도 10a 및 도 10b는 도 8a 및 도 8b의 동력식 광학 스캐너의 예시적인 회전자 조립체를 예시하는 사시도이다.
도 10c는 도 8a 및 도 8b의 동력식 광학 스캐너의 예시적인 회전자 조립체를 예시하는 분해도이다.
도 11은 이중 샤프트 동력식 광학 스캐너의 예시적인 샤프트 장착 고정구를 예시하는 사시도이다.
도 12a는 일부 실시예에 따른 예시적인 동력식 광학 스캐너를 예시하는 사시도이다.
도 12b는 일부 실시예에 따른 예시적인 동력식 광학 스캐너를 예시하는 측면도이다.
도 13은 축방향 플럭스 모터와 비교하여 예시적인 반경방향 플럭스 모터를 도시한다.
Claims (23)
- 자동차에 사용되는 LiDAR(Light Detection and Ranging) 시스템의 동력식 광학 스캐너이며,
기판 및 반사 표면을 포함하는 반사 편;
기판의 제1 단부 및 제2 단부에 각각 부착되는 제1 샤프트 및 제2 샤프트로서, 제1 단부 및 제2 단부는 기판의 종방향을 따르는 기판의 대향 단부들이고, 제1 샤프트 및 제2 샤프트의 회전 축들은 종방향으로 반사 편을 통과하는, 제1 샤프트 및 제2 샤프트,
제1 샤프트 및 제2 샤프트에 각각 결합된 제1 베어링 및 제2 베어링으로서, 제1 베어링 및 제2 베어링은 실질적으로 동심이고, 제2 샤프트의 이동은 반사 표면이 하나 이상의 광 빔을 시야에 대해 광학적으로 송신하게 하는, 제1 베어링 및 제2 베어링을 포함하는, 동력식 광학 스캐너. - 제1항에 있어서,
반사 표면은 기판의 전방측에 기계적으로 또는 접착식으로 장착되는 거울인, 동력식 광학 스캐너. - 제1항에 있어서,
기판 및 반사 표면은 반사 편의 일체형 부분인, 동력식 광학 스캐너. - 제1항에 있어서,
샤프트-장착 고정구를 더 포함하는, 동력식 광학 스캐너. - 제4항에 있어서,
기판의 후방측은 샤프트-장착 고정구에 부착되는, 동력식 광학 스캐너. - 제4항에 있어서,
샤프트-장착 고정구는 기판의 지지를 강화시키는 복수의 돌출부를 포함하는, 동력식 광학 스캐너. - 제4항에 있어서,
샤프트-장착 고정구는 제1 샤프트 및 제2 샤프트가 삽입되는 2개의 장착 구멍을 포함하는, 동력식 광학 스캐너. - 제1항에 있어서,
각도 위치 인코더를 더 포함하고:
제1 베어링은 제1 샤프트의 제1 부분에 결합되고;
위치 인코더는 제1 샤프트의 제2 부분에 결합되고, 제2 부분은 제1 부분과 상이하고;
위치 인코더는 제1 베어링보다 반사 편으로부터 더 멀리 위치되는, 동력식 광학 스캐너. - 제8항에 있어서,
각도 위치 인코더는 제1 샤프트의 각도 위치 또는 동작을 전기 신호로 변환하는 회전 인코더인, 동력식 광학 스캐너. - 제8항에 있어서,
이미터 전류를 제어하고, 강도 오차를 감소시키며, 배경 잡음에 대한 내성을 증가시키도록 구성된 인코더 이미터 구동 회로를 더 포함하는, 동력식 광학 스캐너. - 제8항에 있어서,
흑잡음을 포함하는 배경 잡음에 대한 잡음 내성을 추가로 개선하도록 구성된 인코더 수신기 조절 회로를 더 포함하는, 동력식 광학 스캐너. - 제1항에 있어서,
제1 베어링 및 제2 베어링은 각각 제1 베어링 고정구 및 제2 베어링 고정구에 장착되거나 제1 베어링 고정구 및 제2 베어링 고정구의 일부이며,
제1 베어링 고정구 및 제2 베어링 고정구 각각은 적어도 제1 베어링과 제2 베어링의 동심도를 정렬시키도록 구성된 개별 정렬 기구를 포함하는, 동력식 광학 스캐너. - 제12항에 있어서,
정렬 기구는 하나 이상의 도웰 핀 구멍을 포함하는, 동력식 광학 스캐너. - 제1항에 있어서,
제2 샤프트에 결합된 축방향 플럭스 모터를 더 포함하는, 동력식 광학 스캐너. - 제14항에 있어서,
축방향 플럭스 모터는 제2 샤프트의 제1 부분에 결합되고;
제2 베어링은 제2 샤프트의 제2 부분에 결합되고, 제2 부분은 제1 부분과 상이하고;
제2 베어링은 축방향 플럭스 모터보다 반사 표면으로부터 더 멀리 위치되는, 동력식 광학 스캐너. - 제14항에 있어서,
축방향 플럭스 모터는:
하나 이상의 고정자;
제2 샤프트에 결합되는 회전자;
제1 권선부 및 제2 권선부로서, 회전자가 제1 권선과 제2 권선 사이에 배치되는, 제1 권선부 및 제2 권선부를 포함하는, 동력식 광학 스캐너. - 제16항에 있어서,
회전자는 제2 샤프트에 결합된 2개의 축방향 자화된 반원통형 자석을 포함하는, 동력식 광학 스캐너. - 제16항에 있어서,
제1 권선부 및 제2 권선부는 하나 이상의 고정자 상에 장착된 플랫 코일을 포함하는, 동력식 광학 스캐너. - 제18항에 있어서,
제1 권선부 및 제2 권선부는 하나 이상의 강철 판 상에 장착되는, 동력식 광학 스캐너. - 제16항에 있어서,
회전자는 회전자의 하나 이상의 측부 표면 상에 장착된 복수의 자석을 포함하는, 동력식 광학 스캐너. - 제14항에 있어서,
반사 편이 시야에 하나 이상의 광 빔을 송신하도록 회전 또는 왕복 진동하도록 제2 샤프트를 회전 또는 왕복 진동시키기 위해 축방향 플럭스 모터를 제어하게 구성된 모터 제어 회로를 더 포함하는, 동력식 광학 스캐너. - 자동차에서 사용되는 LiDAR(Light Detection and Ranging) 시스템이며, 상기 시스템은 동력식 광학 스캐너를 포함하고, 동력식 광학 스캐너는:
기판 및 반사 표면을 포함하는 반사 편;
기판의 제1 단부 및 제2 단부에 각각 부착되는 제1 샤프트 및 제2 샤프트로서, 제1 단부 및 제2 단부는 기판의 종방향을 따르는 기판의 대향 단부들이고, 제1 샤프트 및 제2 샤프트의 회전 축들은 종방향으로 반사 편을 통과하는, 제1 샤프트 및 제2 샤프트,
제1 샤프트 및 제2 샤프트에 각각 결합된 제1 베어링 및 제2 베어링으로서, 제1 베어링 및 제2 베어링은 실질적으로 동심이고, 제2 샤프트의 이동은 반사 표면이 하나 이상의 광 빔을 시야에 대해 광학적으로 송신하게 하는, 제1 베어링 및 제2 베어링을 포함하는, 시스템. - 동력식 광학 스캐너를 포함하는 자동차이며, 동력식 광학 스캐너는:
기판 및 반사 표면을 포함하는 반사 편;
기판의 제1 단부 및 제2 단부에 각각 부착되는 제1 샤프트 및 제2 샤프트로서, 제1 단부 및 제2 단부는 기판의 종방향을 따르는 기판의 대향 단부들이고, 제1 샤프트 및 제2 샤프트의 회전 축들은 종방향으로 반사 편을 통과하는, 제1 샤프트 및 제2 샤프트,
제1 샤프트 및 제2 샤프트에 각각 결합된 제1 베어링 및 제2 베어링으로서, 제1 베어링 및 제2 베어링은 실질적으로 동심이고, 제2 샤프트의 이동은 반사 표면이 하나 이상의 광 빔을 시야에 대해 광학적으로 송신하게 하는, 제1 베어링 및 제2 베어링을 포함하는, 자동차.
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EP4150377A4 (en) | 2024-01-17 |
US20220260722A1 (en) | 2022-08-18 |
KR20230028289A (ko) | 2023-02-28 |
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WO2022177622A1 (en) | 2022-08-25 |
US11567213B2 (en) | 2023-01-31 |
EP4150377A1 (en) | 2023-03-22 |
CN115461648A (zh) | 2022-12-09 |
JP2023539790A (ja) | 2023-09-20 |
US11422267B1 (en) | 2022-08-23 |
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