Gm Global Technolgoy Operations, Inc.

Hongguang Sun

Michael D Alarcon

Sara Kaffash

Regan P Dixon

Dan Mepham

William Hsiahua Wang

Norman Joseph Weigert

Yun Qian Miao

Farhad Sheikh Hosseini Lori

An optically transparent coplanar microwave slot antenna formed between a first glass layer and a second glass layer is provided including a metal oxide layer, a first slot element and a second slot element formed in a dipole arrangement within the metal oxide layer wherein the first slot element is formed by a first triangular slot, a first trapezoidal slot, and a first rectangular slot and the second slot element is formed by a second triangular slot, a second trapezoidal slot, and a second rectangular slot, and a waveguide feedline for carrying microwave signals to the first slot element and the second slot element.

Multi-band transparent coplanar slot antenna using conductive windshield coating

An optically transparent coplanar microwave slot antenna is provided including a conductive mesh and a feedline connectively coupled to the conductive mesh wherein the conductive mesh includes a plurality of Christmas tree shaped slots arranged in a dipole configuration wherein each of the plurality of Christmas tree shaped slots is formed from a triangular slot, a trapezoidal slot and a rectangular slot.

Optically transparent triple band coplanar slot antenna

Methods and apparatus are provided for determining a trailer dimension including a radar for generating a depth map wherein the depth map includes a detection of a first trailer surface, a camera for generating an image of the first trailer surface, a processor operative to determine a first dimension of the first trailer surface in response to the depth map and a second dimension of the first trailer surface in response to the first dimension and the image, and a vehicle controller controlling a vehicle in response to the first dimension and the second dimension.

Method and apparatus for determining trailer dimensions in a motor vehicle

A self-cleaning lens system disposed adjacent a camera is disposed. The system may incorporate a piezoelectric (PZT) lens system having a first PZT element secured to a first peripheral portion of the lens element, which may be responsive to an alternating current (AC) signal applied to the first PZT element. An AC signal may excite the first PZT element to cause shear displacements in opposite longitudinal directions and to create an oscillating shear motion for the first PZT element. The oscillating shear motion may cause an oscillating rotational movement of the lens element that removes the environmental element from a surface of the lens element.

System and method for utilizing inertial force for water displacement

An assembly to reduce droplet accumulation and impingement on a lens assembly is disclosed. The assembly includes a camera body; a camera lens mounted within the camera body; and a groove surrounding the camera body. The groove has a first portion defined by a first sidewall, a second sidewall, and a first floor portion and a second portion defined by the first sidewall, a third sidewall, and a second floor portion. The first portion has a first width and a second portion has a second width larger than the first width.

Assembly to reduce liquid droplet accumulation

A battery pack and method of cooling a battery pack. In one form, the battery pack is an assembly made up of numerous battery cells arranged within numerous modules. Cooling channels that receive cooling fluid from a ducted supply are placed between adjacent cells or cooling plates within each of the modules. The ducted supply includes beads or related area-increasing undulations that are designed to improve both the stiffness of the ducting as well as the uniformity of the flow rates of individual cooling channels within each of the modules. In one form, the pressure-enhancing beads are placed in an inlet portion of the ducting that is adjacent a forward portion of one or more of the sequentially-encountered modules in order to promote a more equitable distribution of the cooling fluid between the various cooling channels within each of the modules.

Flow uniformity of air-cooled battery packs

A cooling system for a battery pack including a tapered first conduit for receiving a fluid therein, a second conduit for receiving the fluid therein, and at least one secondary conduit for receiving the fluid therein, the first conduit in fluid communication with the second conduit through at least one fluid channel formed between a plurality of battery units, wherein the battery units are in heat transfer communication with the at least one fluid channel to transfer heat from the battery units to the fluid disposed in the cooling system.

Cooling system for a battery pack

A battery module having a cooling plate assembly made from two non-contiguous cooling plates is provided. Each cooling plate has a side panel contiguous with a base panel, and the cooling plates are disposed opposite one another such that the base panels are coplanar and separated by a gap. An inlet duct runs along an upper edge of each side panel, and a manifold having coolant channels in fluid communication with the inlet duct is located in each side panel. The base panels have an outlet duct in fluid communication with the manifold. The cooling plate is designed to decrease friction loss as coolant flows through the inlet duct, manifold and outlet cut, and coolant channels in the manifold are designed to maintain a uniform flow rate across the manifold. Individual cells are disposed in the assembly such that the cell sides and bottoms are in heat-transfer contact with the plate side and base panels, respectively. The design of the battery module reduces operational temperature variation in the cells across the battery module and within each battery cell. Methods for reducing coolant flow friction loss, for establishing a more uniform coolant flow rate, and for reducing temperature variation are also provided.

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Whitby, Canada

Hongguang Sun