公开(公告)号：US09803742B1

公开(公告)日：2017-10-31

申请号：US15212926

申请日：2016-07-18

Applicant: GM Global Technology Operations LLC

Inventor： Kothamasi Sumithra Raju ,  Sudipto Ray ,  Leonid Basin ,  Hai Xu ,  Avinash Singh

IPC: F16H47/04 ,  F16H57/04 ,  F16H1/46 ,  F16H57/08

CPC classification number: F16H57/043 ,  F16H1/46 ,  F16H57/0484 ,  F16H57/0486 ,  F16H57/082 ,  F16H2003/442

Abstract: A radially stacked planetary gear assembly provides improved lubrication fluid flow to the planet gear bearings of an outer planetary gear set which is especially important when the housing or outer planetary gear carrier is stationary. The assembly includes radially aligned or stacked inner and outer planetary gear sets each having a sun gear, a ring gear and a carrier having planet gears in constant mesh with the sun and ring gears wherein the ring gear of the inner gear set is also the sun gear of the outer gear set and the outer carrier is the assembly housing. The sun gear is disposed on a transmission shaft having lubrication passages which aligns with pluralities of radial openings in a hub housing. A circular plate or guide adjacent one side of the housing includes channels which align with the openings and functions as a lubrication director, channeling lubrication from the transmission shaft and the pluralities of radial openings in the housing hub to the outer bearings, shafts and planet gears.

公开(公告)号：US20230366997A1

公开(公告)日：2023-11-16

申请号：US17742886

申请日：2022-05-12

Applicant: GM Global Technology Operations LLC

Inventor： Kothamasi Sumithra Raju ,  Sudipto Ray ,  Yuchuan Liu ,  Julien P. Mourou

IPC: G01S7/497 ,  B05B1/00 ,  B05B1/08 ,  B60S1/54

CPC classification number: G01S7/497 ,  B05B1/005 ,  B05B1/08 ,  B60S1/54 ,  G01S2007/4977

Abstract: A vehicle having a Lidar system includes a cleaning apparatus that performs a method of cleaning the Lidar system. The cleaning apparatus includes a nozzle for spraying a gas onto a window of the Lidar, a pump for controlling a flow of the gas through the nozzle, and a processor. The processor is configured to control the pump to control the flow of the gas through the nozzle at a variable flow rate.

公开(公告)号：US12099147B2

公开(公告)日：2024-09-24

申请号：US17742886

申请日：2022-05-12

Applicant: GM Global Technology Operations LLC

Inventor： Kothamasi Sumithra Raju ,  Sudipto Ray ,  Yuchuan Liu ,  Julien P. Mourou

IPC: B05B1/00 ,  B05B1/08 ,  B60S1/54 ,  G01S7/497

CPC classification number: G01S7/497 ,  B05B1/005 ,  B05B1/08 ,  B60S1/54 ,  G01S2007/4977

Abstract: A vehicle having a Lidar system includes a cleaning apparatus that performs a method of cleaning the Lidar system. The cleaning apparatus includes a nozzle for spraying a gas onto a window of the Lidar, a pump for controlling a flow of the gas through the nozzle, and a processor. The processor is configured to control the pump to control the flow of the gas through the nozzle at a variable flow rate.

公开(公告)号：US20230391291A1

公开(公告)日：2023-12-07

申请号：US17834610

申请日：2022-06-07

Applicant: GM Global Technology Operations LLC

Inventor： Kothamasi Sumithra Raju ,  Julien P. Mourou ,  Sudipto Ray ,  Yuchuan Liu

IPC: B60S1/08 ,  B60W60/00

CPC classification number: B60S1/0848 ,  B60S1/0862 ,  B60W60/001 ,  B60W2420/52 ,  B60W2555/20

Abstract: A Lidar system, a cleaning apparatus for the Lidar system and a method of operation. The cleaning apparatus cleans a surface of the Lidar system. The cleaning apparatus includes a nozzle and a processor. The nozzle discharges a gas at a surface of the Lidar system. The processor is configured to identify a type of debris on the surface, identify a cleaning mode for cleaning the surface based on the type of debris, select a nozzle velocity of the gas from the nozzle based on the cleaning mode, and operate the nozzle to discharge the gas at the nozzle velocity.