[특허]Portable two-wheeled self-balancing personal transport vehicle

P&N PHC, LLC

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Portable two-wheeled self-balancing personal transport vehicle

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60W-040/13 B62K-011/00 B62K-023/08
출원번호	US-0092460 (2016-04-06)
등록번호	US-10252724 (2019-04-09)
발명자 / 주소	Edney, Daniel Bryan Laird
출원인 / 주소	P&N PHC, LLC
대리인 / 주소	Mauriel Kapouytian Woods LLP
인용정보	피인용 횟수 : 0 인용 특허 : 64

초록
▼

A portable two-wheeled self-balancing personal transport vehicle comprises a single support platform having first and second foot placement sections, one or more inertial sensors operable to provide pitch data for the platform. The first foot placement section and the second foot placement section are associated with a first wheel and a second wheel respectively controlled by a first and a second drive motor. At least one load sensor provides first load data for the first foot placement section and at least one load sensor provides second load data for the second foot placement section. Control circuitry is connected to the first and second drive motors, and operable to transmit to the first and second drive motors balancing signals for self-balancing the support platform housing in response to the pitch data, as well as one or more steering torque signals in response to the first and second load data.

대표
청구항
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1. A self-balancing transport vehicle, comprising: a support platform housing comprising one or more inertial sensors operable to provide data indicating the pitch of the support platform, a first foot placement section and a second foot placement section;a first wheel associated with the first foot placement section and a second wheel associated with the second foot placement section, the first and second wheels being spaced apart and substantially parallel to one another;a first drive motor configured to drive the first wheel and a second drive motor configured to drive the second wheel;at least one load sensor operable to provide first load data for the first foot placement section and at least one load sensor operable to provide second load data for the second foot placement section, wherein the first load data comprises a first front load data and a first rear load data of the first foot placement section and the second load data comprises a second front load data and a second rear load data of the second foot placement section; andcontrol circuitry connected to the first and second drive motors, and operable to transmit balancing torque signals to the first and second wheels for self-balancing the support platform housing in response to the pitch data, and further operable to transmit steering torque signals to the first and second wheels in response to the first and second load data, wherein a net steering torque signal of the control circuitry comprises a product of a first factor and a second factor, wherein the first factor comprises a steering force input provided by the first load data and the second load data, and wherein the second factor comprises a constant coefficient that varies depending on the speed of the vehicle. 2. The self-balancing transport vehicle of claim 1, further comprising at least one carrying handle disposed along a first portion of the support platform housing comprising a lateral mid-point of the housing. 3. The self-balancing transport vehicle of claim 2, wherein the at least one carrying handle substantially spans the length of one side of the support platform housing. 4. The self-balancing transport vehicle of claim 1, wherein at least two load sensors are operable to provide the first front load data and first rear load data for the first foot placement section and at least two load sensors are operable to provide the second front load data and second rear load data for the second foot placement section. 5. The self-balancing transport vehicle of claim 4, wherein the at least two load sensors operable to provide the first load data for the first foot placement section and the at least two load sensors operable to provide second load data for the second foot placement section are arranged in association with each of the first and second foot placement sections to generate signals to determine weight differentials between a heel portion and a toe portion of each foot placement section. 6. The self-balancing transport vehicle of claim 5, wherein the control circuitry is configured to transmit one or more signals to adjust steering rightward when the weight differentials indicate weight shifts toward the left toe portion of the first foot placement section and the right heel portion of the second foot placement section. 7. The self-balancing transport vehicle of claim 5, wherein the control circuitry is configured to transmit one or more signals to adjust steering leftward when the weight differentials indicate weight shifts toward the left heel portion of the first foot placement section and the right toe portion of the second foot placement section. 8. The self-balancing transport vehicle of claim 1, wherein at least four load sensors are operable to provide the first load data for the first foot placement section and at least four load sensors are operable to provide the second load data for the second foot placement section. 9. The self-balancing transport vehicle of claim 1, wherein the load sensors are mounted on a chassis structure inside the support platform housing. 10. The self-balancing transport vehicle of claim 9, wherein the at least one load sensor operable to provide first load data for the first foot placement section supports a first foot plate positioned underneath the first foot placement section, and the at least one load sensor operable to provide second load data for the second foot placement section supports a second foot plate positioned underneath the second foot placement section inside the support platform housing. 11. The self-balancing transport vehicle of claim 10, further comprising at least two pivot members mounted on the chassis structure, wherein at least one pivot member supports the first foot plate and is positioned underneath the first foot placement section on the side opposite the at least one load sensor operable to provide the first load data, and at least one pivot member supports the second foot plate and is positioned underneath the second foot placement section on the side opposite the at least one load sensor operable to provide the second load data. 12. The self-balancing transport vehicle of claim 1, wherein the control circuitry is operative to determine the presence and absence of weight applied to the support platform housing based on data supplied by the at least one load sensor. 13. The self-balancing transport vehicle of claim 1, wherein the control circuitry is operative to determine, based on data supplied from the at least one load sensor, whether weight within a predefined range is applied to the first and second foot placement sections of the support platform housing. 14. The self-balancing transport vehicle of claim 1, wherein at speeds of less than 1 meter per second, the net steering torque signal comprises the product of a constant coefficient of greater than or equal to 0.2 and the steering force input;at speeds from 1 to 3 meters per second, the net steering torque signal comprises the product of a constant coefficient within a range of 0.1 to 1.0 inclusive, and the steering force input; andat speeds greater than 3 meters per second, the net steering torque signal comprises a product of a constant coefficient less than or equal to 0.4, and the steering force input. 15. The self-balancing transport vehicle of claim 1, wherein the control circuitry is configured to receive a remote control signal via a remote control pathway, wherein the remote control signal indicates a desired direction of travel, and the control circuitry is operable to transmit a signal to adjust steering in the desired direction of travel.

이 특허에 인용된 특허 (64)

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Portable two-wheeled self-balancing personal transport vehicle

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Portable two-wheeled self-balancing personal transport vehicle

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이 특허에 인용된 특허 (64)

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