Gm Global Technolgoy Operations, Inc.

Kothamasi Sumithra Raju

Julien P Mourou

Yuchuan Liu

Sudipto Ray

Leonid Basin

Avinash Singh

Hai Xu

Zhe Li

A vehicle camera lens cleaning system includes a camera configured to be mounted to a vehicle and including a lens; an ultrasonic cleaning system adapted to vibrate the lens; a source of pressurized air; an air flow passage connected to the source of pressurize air; an annular duct connected to the air flow passage and surrounding the lens, the annular duct having a non-uniform cross section taken in a radial direction from a center of the lens; a plurality of nozzles extending from the annular duct and pointed at the lens; and a controller configured to supply pressurized air from the source of pressurized air to the plurality of nozzles simultaneous with operating the ultrasonic cleaning system.

Vehicle camera lens cleaning system with swirl flow generator

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.

Surface cleaning system to clean lidar sensor of an autonomous vehicle

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.

Stacked planetary gear assembly with improved lubrication

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Bengaluru, India

Kothamasi Sumithra Raju