GM GLOBAL TECHNOLOGY OPERATIONS LLC patent applications on December 26th, 2024
Patent Applications by GM GLOBAL TECHNOLOGY OPERATIONS LLC on December 26th, 2024
GM GLOBAL TECHNOLOGY OPERATIONS LLC: 24 patent applications
GM GLOBAL TECHNOLOGY OPERATIONS LLC has applied for patents in the areas of B60W60/00 (2), H01M4/66 (2), H01M10/42 (2), H01M10/625 (2), B60L55/00 (2) B21D22/02 (1), G06F13/4282 (1), H02K5/1732 (1), H02K1/24 (1), H02J3/322 (1)
With keywords such as: battery, vehicle, cell, data, current, processor, location, determining, pressure, and between in patent application abstracts.
Patent Applications by GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor(s): Jatinder P Singh of Troy MI (US) for gm global technology operations llc, Christopher Ian Roman of Ortonville MI (US) for gm global technology operations llc, Adam R. Groseclose of Sterling Heights MI (US) for gm global technology operations llc, Kevin Anthony Beam of Rocherster Hills MI (US) for gm global technology operations llc, Thomas Joseph Mitcheltree, III of Roseville MI (US) for gm global technology operations llc
IPC Code(s): B21D22/02
CPC Code(s): B21D22/02
Abstract: components, methods for producing the components from metallic blanks, and vehicles comprising the components are provided. the components include a body having protrusions and recesses formed by a process including forming the component from a metallic blank by a drawing or stamping process. the metallic blank has at least one notch along a perimeter thereof that is configured to reduce elastic strain retained in the component formed therefrom. the at least one notch provides for relaxation of elastic strain within the component during the drawing or stamping process and thereby reduces springback distortion of the component.
Inventor(s): Thomas J. Boone of Ann Arbor MI (US) for gm global technology operations llc
IPC Code(s): B22C9/08, B22D11/119
CPC Code(s): B22C9/086
Abstract: a molten aluminum metal filter system having a holding tank operable to receive a molten metal, a filter device to filter the molten metal, a pump operable to continuously recirculate the molten metal through the filter device, and a casting device to receive a filtered molten metal from the filter device. the filter device includes a chamber, an inlet channel operable to convey the molten metal into the chamber, and an outlet channel operable to convey unused filtered molten metal out of the chamber and back into the holding tank. removeable filter elements are disposed in series within the inlet channel. the removable filter elements are configured to remove inclusions above a determined diameter size from the molten metal. the filter device includes at least one nozzle operable to direct an inert gas flow to blanket the molten metal and a heating element.
Inventor(s): Alaa M. Khamis of Courtice (CA) for gm global technology operations llc, Yujie Guo of Thornhill (CA) for gm global technology operations llc, Brooke Lynn Waldon of Romulus MI (US) for gm global technology operations llc, Julien P. Mourou of Bloomfield Hills MI (US) for gm global technology operations llc, Jarvis Cahu of Markham (CA) for gm global technology operations llc
IPC Code(s): B60J3/04, G02F1/163, G07C5/02
CPC Code(s): B60J3/04
Abstract: some embodiments disclosed herein are directed to controlling tinting levels of dimmable glass on vehicles. other embodiments may be disclosed or claimed.
Inventor(s): Rashmi Prasad of Troy MI (US) for gm global technology operations llc, Chandra S. Namuduri of Troy MI (US) for gm global technology operations llc
IPC Code(s): B60L55/00, B60L53/16, B60L53/20, H02J3/32, H02J7/00
CPC Code(s): B60L55/00
Abstract: a charging system of a vehicle includes a first charge port selectively connectable to a battery system of the vehicle, the first charge port configured to receive electrical power from a power source to charge the battery system, and a second charge port selectively connectable to the battery system of the vehicle, the second charge port connected to a bi-directional charger. the charging system also includes a controller configured to connect the battery system to the first charge port and control a first charging operation to charge the battery system, connect the battery system to the second charge port, and control a second charging operation to supply electrical power to charge an external energy storage system.
Inventor(s): Insu Chang of Troy MI (US) for gm global technology operations llc, Hanho Yun of Oakland Twp MI (US) for gm global technology operations llc, Jun-mo Kang of Ann Arbor MI (US) for gm global technology operations llc, Chen-fang Chang of Bloomfield HIlls MI (US) for gm global technology operations llc
IPC Code(s): B60L58/12, G01R31/396, H01M10/44, H01M10/48
CPC Code(s): B60L58/12
Abstract: aspects of the disclosure include the detection of battery cell degradation. an exemplary battery management system can include a memory, computer readable instructions, and one or more processors that perform operations that include: responsive to determining that a charging state has completed, measuring a first cell voltage of a cell of the battery pack; responsive to the first cell voltage exceeding a reference voltage, measuring a second cell voltage of the cell of the battery pack; responsive to the second cell voltage being equal to the reference voltage, measuring a cell pressure of the cell of the battery pack at the reference voltage; determining a difference between the cell pressure and a prior cell pressure at the reference voltage; and responsive to the difference between the cell pressure and the prior cell pressure exceeding a threshold, identifying the cell of the battery pack as a degraded cell.
Inventor(s): Neela Praveenkumar of SECUNDERABAD (IN) for gm global technology operations llc, Rohan G. Raj of Bangalore (IN) for gm global technology operations llc, Srinivas Surampudi of Bengaluru (IN) for gm global technology operations llc
IPC Code(s): B60N2/75, B60R21/04
CPC Code(s): B60N2/78
Abstract: embodiments include a vehicle having a door with an interior surface and an armrest disposed on the interior surface of the door. the armrest includes a first material distal from the interior surface of the door, a third material proximal to the interior surface of the door, and a second material disposed in between the first material and the third material. the first material and the third material have a first stiffness and a third stiffness that are both greater than a second stiffness of the second material.
Inventor(s): Lei Hao of Troy MI (US) for gm global technology operations llc, Yue-Yun Wang of Troy MI (US) for gm global technology operations llc, Bojian Cao of Troy MI (US) for gm global technology operations llc, Suresh Gopalakrishnan of Troy MI (US) for gm global technology operations llc, Gionata Cimini of Milano (IT) for gm global technology operations llc
IPC Code(s): B60W10/08, H02P21/22
CPC Code(s): B60W10/08
Abstract: some embodiments disclosed herein are directed to constraint handling for parameters of electric motors. in particular, embodiments of the present disclosure relate to handling constraints for parameters such as current, voltage, and torque associated with an electric motor. other embodiments may be disclosed or claimed.
Inventor(s): Rodolfo Valiente Romero of Calabasas CA (US) for gm global technology operations llc, Hyukseong Kwon of Thousand Oaks CA (US) for gm global technology operations llc, Marcus James Huber of Saline MI (US) for gm global technology operations llc, Alireza Esna Ashari Esfahani of Novi MI (US) for gm global technology operations llc, Michael Cui of Winnetka CA (US) for gm global technology operations llc
IPC Code(s): B60W30/18, B60W40/02, B60W60/00
CPC Code(s): B60W30/18163
Abstract: a hybrid probabilistic driving behavior modeling system conditioned on weather for a vehicle includes one or more controllers executing instructions to determine, by a longitudinal driving model stored by the one or more controllers, a probabilistic longitudinal velocity of the vehicle with respect to a current weather condition based on a car-following model, a semantic rule system, and a speed and visibility model. the current weather condition indicates an adverse weather condition impacting driving conditions for the vehicle. the one or more controllers determine, by a probabilistic lateral driving model by the one or more controllers, one or more lane choices for the vehicle with respect to the current weather condition based on a route plan of the vehicle and perception data indicative of an environment surrounding the vehicle and selects a final lane choice from the one or more lane choices.
Inventor(s): Steffen P. Lindenthal of Oshawa (CA) for gm global technology operations llc, Michael D. Alarcon of Markham (CA) for gm global technology operations llc, Akram M. Abdel-Rahman of Ajax (CA) for gm global technology operations llc, Norman J. Weigert of Whitby (CA) for gm global technology operations llc
IPC Code(s): B60W50/14, B60K35/00, G06T7/10, G06V20/56
CPC Code(s): B60W50/14
Abstract: methods and systems are provided for providing guidance when reversing a vehicle towing a trailer. in one embodiment, a method includes: a method for providing guidance when reversing a vehicle towing a trailer, comprising: receiving, from a camera of the trailer, image data associated with an environment of the vehicle; determining, by a processor, that the camera of the trailer is at least one of partially and fully underwater; in response to the determining, determining, by the processor, at least one of underwater image data and underwater guideline data based on a correction factor associated with the water and the image data; and generating, by the processor, display data based on the at least one of underwater image data and underwater guidelines data.
Inventor(s): Mohammadali Shahriari of Markham (CA) for gm global technology operations llc, Mehdi Abroshan of Waterloo (CA) for gm global technology operations llc, Amanpal S Grewal of Novi MI (US) for gm global technology operations llc, Dmitriy Feldman of W Bloomfield MI (US) for gm global technology operations llc, Robert C Baraszu of Livonia MI (US) for gm global technology operations llc
IPC Code(s): B60W60/00, B60W40/02
CPC Code(s): B60W60/001
Abstract: methods and systems for providing driving assistance in a vehicle. in one embodiment, a method includes: receiving, by a processor, vehicle data from a sensor system of the vehicle; determining, by a processor, a path of the vehicle based on the steering data; expanding, by the processor, the path of the vehicle to a path area based on probabilistic uncertainty bound prediction; determining, by the processor, a target object based on the path area and object data that identifies objects within the environment of the vehicle; and generating, by the processor, control signals to vehicle actuators to control the vehicle based on the target object.
Inventor(s): Rasoul Salehi of Ann Arbor MI (US) for gm global technology operations llc, Lei Wang of Rochester Hills MI (US) for gm global technology operations llc, Alok Warey of Novi MI (US) for gm global technology operations llc, Michelle H. Wiebenga of Farmington Hills MI (US) for gm global technology operations llc
IPC Code(s): G01R31/392, G01R31/367, G01R31/371, G01R31/3835, G01R31/396
CPC Code(s): G01R31/392
Abstract: techniques are provided for reference electrode-based battery imbalance diagnosis. in one embodiment, the techniques involve determining a state of health of a cell group, determining a state of health of a cell of the cell group, determining a cell imbalance of the cell group based on a comparison of the state of health of the cell group and the state of health of the cell, and generating an alert signal or a control signal based on the cell imbalance.
Inventor(s): Aaron Adler of Rochester Hills MI (US) for gm global technology operations llc, Gregg R. Kittinger of Oakland Township MI (US) for gm global technology operations llc, Nahel Eshaq of Rochester MI (US) for gm global technology operations llc
IPC Code(s): G01S19/46
CPC Code(s): G01S19/46
Abstract: presented are control systems for governing analog and digital radio services in motor vehicles, methods for making/using such systems, and vehicles equipped with such systems. a method of controlling a vehicle includes an in-vehicle radio tuner receiving selections of broadcast radio stations output by analog signals and/or streaming radio stations output by digital signals. a vehicle controller retrieves a memory-stored broadcast station service (bss) map with a service contour containing available broadcast radio stations having sufficient signal strength within a designated area. the controller receives geopositional data indicative of the host vehicle's location, and accesses a remote database to retrieve an updated bss map that corresponds to the vehicle's location. the controller then determines if the stored bss map corresponds to the updated bss map; if not, the radio tuner responsively displays an updated list of available stations revised to reflect available stations contained in the updated bss map.
Inventor(s): Asaf Degani of Tel Aviv (IL) for gm global technology operations llc, Yael Shmueli Friedland of Tel Aviv (IL) for gm global technology operations llc, Daniel Y. Rubin of Holon (IL) for gm global technology operations llc, Shani Avnet of Tel Aviv (IL) for gm global technology operations llc, Lisa M. Talarico of Milford MI (US) for gm global technology operations llc
IPC Code(s): G06F11/36
CPC Code(s): G06F11/3608
Abstract: a method for verifying system behavior and correcting design flaws in a finite state machine (fsm)-modeled system or any other representational method that includes receiving from a user device via a model verification platform, data associated with the system design. the data describes states, state transitions, events, and outputs of the fsm-modeled system. the method includes searching the data for predetermined behavior of the fsm-modeled system, including predetermined state(s) and/or mode changes. the method includes flagging the predetermined behavior as a verified behavior and performing a control action in response to the verified behavior, including transmitting a notification to the user device that is indicative of the verified behavior, and a design recommendation where applicable. instructions for the method may be recorded in a computer readable storage medium and executed by a processor to cause the model verification platform to perform the method.
Inventor(s): Bo Nie of Unionville (CA) for gm global technology operations llc, Amandeep Saini of Brampton (CA) for gm global technology operations llc
IPC Code(s): G06F13/42, G06F9/455, G06F13/38, G06F21/44
CPC Code(s): G06F13/4282
Abstract: apparatuses and methods for enabling an mfi stack and corresponding mfi application to be authenticated in an emulator operating using one or more processors/cpus are presented. in one aspect, a computer may include a memory and processor configured to execute the operating system. the computer may include a usb bus coupled through usb interface to a dongle. the dongle may include an authentication coprocessor for use in an integrated circuit (i2c)-to-usb configuration, and an i2c-to-usb computer. driver code running on the computer may manage the data exchanged between the authentication coprocessor and a virtual emulator on the computer. the emulator may include a usb-to-i2c driver that virtualizes the authentication coprocessor as an i2c device running with the mfi application like carplay.
Inventor(s): Ziqiang Sheng of Troy MI (US) for gm global technology operations llc, Timothy J Byrd of Goodrich MI (US) for gm global technology operations llc, Ronald Schabel of Lapeer MI (US) for gm global technology operations llc, Kleber M Cabral of Auburn Hills MI (US) for gm global technology operations llc, Michael J Watson of Grand Blanc MI (US) for gm global technology operations llc
IPC Code(s): G06F30/20, G06F30/15
CPC Code(s): G06F30/20
Abstract: methods and systems for analyzing stamped parts having a final shape for a vehicle are provided. a method includes receiving data for the stamped part; producing a computer simulation based on the data; determining a wrinkling index (wi) for the stamped part in response to the processor producing the computer simulation; determining whether an element under analysis is located at a trimmed edge of the stamped part; when the element under analysis is located at a trimmed edge of the stamped part, determining a stretching index (si) for a trimmed edge portion, or when the element under analysis is not located at a trimmed edge of the stamped part, determining a si for a plane stress portion in response to the processor producing the computer simulation; comparing the si to a si threshold and/or comparing the si to the wi; and generating, using the processor, a uniform failure index (ufi).
Inventor(s): Sayed Youssef Sayed NAGY of Troy MI (US) for gm global technology operations llc, Anil K. SACHDEV of Rochester Hills MI (US) for gm global technology operations llc, Diptak BHATTACHARYA of Royal Oak MI (US) for gm global technology operations llc
IPC Code(s): H01M4/74, H01M4/04, H01M4/66
CPC Code(s): H01M4/74
Abstract: a method for manufacturing a current collector for an electrode of a battery cell includes providing a wire mesh current collector including a plurality of first wires and a plurality of second wires that overlap to form a plurality of mesh joints. a diameter of the plurality of first wires and the plurality of second wires is in a range from 4 �m to 100 �m. the method includes coating the wire mesh current collector with a metal coating by immersing the wire mesh current collector in a bath including a metal salt.
Inventor(s): Shuonan Xu of Troy MI (US) for gm global technology operations llc, Lei Hao of Troy MI (US) for gm global technology operations llc, Neeraj S. Shidore of Novi MI (US) for gm global technology operations llc, Chandra S. Namuduri of Troy MI (US) for gm global technology operations llc, Nicholas W. Pinto of Shelby Township MI (US) for gm global technology operations llc
IPC Code(s): H01M10/615, H01M10/42, H01M10/625, H01M10/63, H01M10/657
CPC Code(s): H01M10/615
Abstract: a battery electric system includes an inverter connected to a battery pack and a direct current (dc) voltage bus, first and second electrical switches, and a battery controller. the first switch is connected between the inverter and battery pack, and opens during an alternating current (ac) self-heating mode of the battery pack. this mode includes generating an ac waveform through the battery pack via the inverter at a controlled amplitude. the second switch, which is connected to the inverter and the first switch, closes during the self-heating mode. the controller, in response to calibrated entry criteria, opens the first switch, closes the second switch, and controls on/off conducting states of the power switches to self-heat the battery pack using the ac waveform. the entry criteria includes required charging of the battery pack while a temperature of the battery pack is less than a calibrated temperature limit.
Inventor(s): Anil Yadav of Troy MI (US) for gm global technology operations llc, Srikant Srinivasan of Novi MI (US) for gm global technology operations llc
IPC Code(s): H01M50/103, H01M4/131, H01M4/133, H01M4/134, H01M4/66, H01M10/0525, H01M10/613, H01M10/625, H01M10/647, H01M10/6554
CPC Code(s): H01M50/103
Abstract: a prismatic battery includes a prismatic battery can having an upper region, a vertical z-direction along a height of the prismatic battery can, and a horizontal y-direction along a width of the prismatic battery can. a plurality of stacked battery layers is disposed inside of the prismatic battery can. the stacked battery layers have an in-plane direction and a transverse direction that is perpendicular to the in-plane direction. the stacked battery layers have an orthotropic thermal conductivity that has a high, in-plane thermal conductivity in the in-plane direction and has a low, transverse thermal conductivity in the transverse direction. the stacked battery layers are folded inside of the prismatic battery can in an inverted-u geometric configuration. the inverted-u geometry is configured to provide a longer thermal delay time and a reduced peak temperature in response to a thermal runaway event occurring in an adjacent battery can.
Inventor(s): Masoud MOHAMMADPOUR of Novi MI (US) for gm global technology operations llc, Junjie MA of Novi MI (US) for gm global technology operations llc, Teresa Jean RINKER of Royal Oak MI (US) for gm global technology operations llc, Blair E. CARLSON of Ann Arbor MI (US) for gm global technology operations llc, Jennifer Therese BRACEY of Holly MI (US) for gm global technology operations llc
IPC Code(s): H01M50/30, B23K26/26, H01M50/46, H01M50/536
CPC Code(s): H01M50/394
Abstract: a method for manufacturing a battery cell includes providing a stack including c cathode electrodes each including a cathode current collector, a cathode active layer, and an external tab extending from the cathode current collector, a anode electrodes including an anode current collector, an anode active layer, and an external tab extending from the anode current collector, and s separators. the method includes providing a terminal including a first portion connected to a second portion at a predetermined angle less than or equal to 100�; positioning external tabs of one of the a anode electrodes and the c cathode electrodes in contact with one of an inner surface and an outer surface of the first portion of the terminal; and laser welding ends of the external tabs to the one of an inner surface and an outer surface of the first portion of the terminal.
Inventor(s): Alexander Millerman of Bloomfield Township MI (US) for gm global technology operations llc, Chunhao J. Lee of Troy MI (US) for gm global technology operations llc, Yongjie Zhu of Troy MI (US) for gm global technology operations llc, Insu Chang of Troy MI (US) for gm global technology operations llc, Jun-mo Kang of Ann Arbor MI (US) for gm global technology operations llc, Chen-fang Chang of Bloomfield Hills MI (US) for gm global technology operations llc
IPC Code(s): H01M50/618, B60L50/64, H01M10/42
CPC Code(s): H01M50/618
Abstract: a vehicle, a pressure control device and method for controlling a pressure within a battery of the vehicle. the pressure control device includes a support plate, a pressure plate and an actuator. the pressure plate is configured to move with respect to the support plate. the battery is disposed between the support plate and the pressure plate. the actuator changes between a first shape and a second shape to move the pressure plate with respect to the support plate to control the pressure within the battery.
Inventor(s): Chandra S. Namuduri of Troy MI (US) for gm global technology operations llc, Rashmi Prasad of Troy MI (US) for gm global technology operations llc, Suresh Gopalakrishnan of Troy MI (US) for gm global technology operations llc, Yilun Luo of Ann Arbor MI (US) for gm global technology operations llc, Khorshed Mohammed Alam of Canton MI (US) for gm global technology operations llc, Minh-Khai Nguyen of Troy MI (US) for gm global technology operations llc
IPC Code(s): H02J3/32, B60L50/60, B60L53/24, B60L55/00, H02J7/02, H02M7/797
CPC Code(s): H02J3/322
Abstract: an electric vehicle includes a drive system that performs a method of transferring power between a vehicle and an external location. the drive system includes a battery, a rectifier, and a processor. the rectifier is one of a two-level rectifier and a multi-level rectifier. the processor is configured to connect the rectifier between an alternating current (ac) port of an outlet of an external location and the battery. the rectifier is configured to convert between an ac power at the ac port on an external side of the rectifier and a direct current (dc) power at a vehicle side of the rectifier in order to transfer power bi-directionally between the external location and the battery.
Inventor(s): Jinho Lee of Seoul (KR) for gm global technology operations llc
IPC Code(s): H02K1/24, H02K15/02
CPC Code(s): H02K1/24
Abstract: a rotor disk having a plurality of space apart teeth, each tooth having a transverse portion having s first and second end portion each having an angled side face forming an angle that is not 90 degrees with respect to a top surface or a bottom surface of the rotor disk.
Inventor(s): Yilun Luo of Ann Arbor MI (US) for gm global technology operations llc, John Diemer of Royal Oak MI (US) for gm global technology operations llc, Jack M. Gayney of Grosse Ile MI (US) for gm global technology operations llc, Patrick S. Portell of Clarkston MI (US) for gm global technology operations llc, Sanjeev M. Naik of Troy MI (US) for gm global technology operations llc, Azadeh Narimissa of Lake Orion MI (US) for gm global technology operations llc, Mohammad F. Momen of Rochester Hills MI (US) for gm global technology operations llc
IPC Code(s): H02K5/173, H02K7/00, H02K11/40
CPC Code(s): H02K5/1732
Abstract: an electric motor including a motor casing, a shaft having an axis of rotation, a first end and a second end, a first main bearing for rotatably supporting the shaft at the first end within the motor casing, a second main bearing for rotatably supporting the shaft at the second end within the motor casing, and a grounding bearing for conducting a bearing current between the shaft and the motor casing.
Inventor(s): Alaa M. Khamis of Courtice (CA) for gm global technology operations llc, Yun Qian Miao of Waterloo (CA) for gm global technology operations llc, Russell A. Patenaude of Macomb Township MI (US) for gm global technology operations llc
IPC Code(s): H04W4/029
CPC Code(s): H04W4/029
Abstract: a method for confirming arrival at a target location includes comparing, by one or more controllers, properties of a plurality of identifying features of the target location with properties of a corresponding plurality of corresponding features of a present location to result in a plurality of comparisons. the method additionally includes identifying, by one or more controllers, the present location as the target location if the plurality of comparisons concludes that the present location is the target location. the properties of a plurality of identifying features of the target location include at least one property of one or more wireless communication networks expected to be detectable at the target location.
GM GLOBAL TECHNOLOGY OPERATIONS LLC patent applications on December 26th, 2024
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- B21D22/02
- CPC B21D22/02
- Gm global technology operations llc
- B22C9/08
- B22D11/119
- CPC B22C9/086
- B60J3/04
- G02F1/163
- G07C5/02
- CPC B60J3/04
- B60L55/00
- B60L53/16
- B60L53/20
- H02J3/32
- H02J7/00
- CPC B60L55/00
- B60L58/12
- G01R31/396
- H01M10/44
- H01M10/48
- CPC B60L58/12
- B60N2/75
- B60R21/04
- CPC B60N2/78
- B60W10/08
- H02P21/22
- CPC B60W10/08
- B60W30/18
- B60W40/02
- B60W60/00
- CPC B60W30/18163
- B60W50/14
- B60K35/00
- G06T7/10
- G06V20/56
- CPC B60W50/14
- CPC B60W60/001
- G01R31/392
- G01R31/367
- G01R31/371
- G01R31/3835
- CPC G01R31/392
- G01S19/46
- CPC G01S19/46
- G06F11/36
- CPC G06F11/3608
- G06F13/42
- G06F9/455
- G06F13/38
- G06F21/44
- CPC G06F13/4282
- G06F30/20
- G06F30/15
- CPC G06F30/20
- H01M4/74
- H01M4/04
- H01M4/66
- CPC H01M4/74
- H01M10/615
- H01M10/42
- H01M10/625
- H01M10/63
- H01M10/657
- CPC H01M10/615
- H01M50/103
- H01M4/131
- H01M4/133
- H01M4/134
- H01M10/0525
- H01M10/613
- H01M10/647
- H01M10/6554
- CPC H01M50/103
- H01M50/30
- B23K26/26
- H01M50/46
- H01M50/536
- CPC H01M50/394
- H01M50/618
- B60L50/64
- CPC H01M50/618
- B60L50/60
- B60L53/24
- H02J7/02
- H02M7/797
- CPC H02J3/322
- H02K1/24
- H02K15/02
- CPC H02K1/24
- H02K5/173
- H02K7/00
- H02K11/40
- CPC H02K5/1732
- H04W4/029
- CPC H04W4/029
