公开(公告)号：US12007023B2

公开(公告)日：2024-06-11

申请号：US17766595

申请日：2019-11-20

Applicant: SRI INTERNATIONAL

Inventor： Riley Shear ,  Alexander Kernbaum

IPC: F16H9/16 ,  F16G1/24 ,  F16G3/00 ,  F16G13/04 ,  F16H37/08 ,  F16H61/28

CPC classification number: F16H9/16 ,  F16G3/003 ,  F16G13/04 ,  F16G1/24 ,  F16H37/082 ,  F16H2061/2869

Abstract: A variety of transmission mechanisms are provided that include split pulleys nested within each other in order to reduce the size of the transmissions, to provide infinitely variable transmission ratios that include forward and reverse ratios, or to provide some other benefits. These transmissions include “W”-shaped belts, having both contact surfaces that are directed outward from the belt and inward, toward a center-line of the belt, to contact the pulleys with respective different inward- and outward-directed contact surfaces. Accordingly, the surfaces at which the belt contacts the different pulleys may be substantially the same with respect to a hinge or other structure of the belt. This improvement may permit higher levels of power transmission, increased efficiency, and increased transmission lifetime. Additionally, variable-eccentricity variable transmissions are provided wherein the eccentricity of rotation of an inner, nested pulley varies with changes in the transmission ratio of the transmission.

公开(公告)号：US20240102537A1

公开(公告)日：2024-03-28

申请号：US17766595

申请日：2019-11-20

Applicant: SRI INTERNATIONAL

Inventor： Riley Shear ,  Alexander Kernbaum

IPC: F16H9/16 ,  F16G3/00 ,  F16G13/04

CPC classification number: F16H9/16 ,  F16G3/003 ,  F16G13/04 ,  F16G1/24

Abstract: A variety of transmission mechanisms are provided that include split pulleys nested within each other in order to reduce the size of the transmissions, to provide infinitely variable transmission ratios that include forward and reverse ratios, or to provide some other benefits. These transmissions include“W”-shaped belts, having both contact surfaces that are directed outward from the belt and inward, toward a center-line of the belt, to contact the pulleys with respective different inward- and outward-directed contact surfaces. Accordingly, the surfaces at which the belt contacts the different pulleys may be substantially the same with respect to a hinge or other structure of the belt. This improvement may permit higher levels of power transmission, increased efficiency, and increased transmission lifetime. Additionally, variable-eccentricity variable transmissions are provided wherein the eccentricity of rotation of an inner, nested pulley varies with changes in the transmission ratio of the transmission.

公开(公告)号：US10899016B2

公开(公告)日：2021-01-26

申请号：US15768311

申请日：2016-10-21

Applicant: SRI INTERNATIONAL ,  YAMAHA HATSUDOKI KABUSHIKI KAISHA

Inventor： Thomas Low ,  Thomas De Candia ,  Seungkook Yun ,  Thomas Egan ,  Bryan Chavez ,  Alexander Kernbaum ,  Riley Shear ,  Leonard Gerard ,  Stephen Morfey ,  Richard Mahoney ,  Regis Vincent ,  Paul Birkmeyer ,  Hiroyuki Morita ,  Hirokatsu Muramatsu ,  Keiji Nishimura ,  Hiroshi Saijou ,  Akira Satou ,  Toshifumi Uchiyama ,  Hitoshi Watanabe ,  Shirou Watanabe

IPC: B25J11/00 ,  B25J9/10 ,  B25J13/08 ,  B25J19/02 ,  B25J9/00 ,  B25J9/16 ,  G05D1/00 ,  G05D1/02 ,  G06K9/00

Abstract: An example system includes a vehicle, a robot, and a controller. The vehicle may include an accelerator operator and a steering operator. The robot may include as accelerator actuator configured to operate the accelerator operator, and a steering actuator configured to operate-the steering operator. The controller is configured to: in response to an accelerator command, send a first signal to the accelerator actuator to operate the accelerator operator of the vehicle, and in response to a steering command, send a second, signal to the steering actuator to steer the vehicle.