-
公开(公告)号：US20230291281A1
公开(公告)日：2023-09-14
申请号：US17690071
申请日：2022-03-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alireza FATEMI , Chih-Hung YEN , Farzad SAMIE , SeungHwan KEUM , Thomas W. NEHL , Xiaofeng YANG
Abstract: A motor stator includes a stator core having a plurality of stator teeth on an inner diameter thereof and defining a respective plurality of slots between the plurality of stator teeth. A plurality of windings are disposed in the slots. A heat pipe network includes a plurality of evaporator portions including a hollow structure disposed in at least a portion of the plurality of slots and including an interior having a wick extending along the interior of the hollow structure. A condenser portion has an interior portion in communication with the plurality of evaporator portions and is located at an end of the stator core. The wick of each of the plurality of evaporator portions extend into the condenser portion.
-
Patent Agency Ranking
公开(公告)号：US20220166264A1
公开(公告)日：2022-05-26
申请号：US17116661
申请日：2020-12-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alireza FATEMI , Anil K. SACHDEV , Jian YAO , Anthony M. COPPOLA , Thomas W. NEHL , Chengwu DUAN
Abstract: A bi-material permanent magnet for an electric machine includes a core including a first magnetic material and a shell portion located on the core and made of a second magnetic material. The first magnetic material comprises a magnet material with an energy less than 20 Mega Gauss Oersteds (MGOe). The second magnetic material comprises a magnet material with an energy greater than 30 MGOe.
-
公开(公告)号：US20180258900A1
公开(公告)日：2018-09-13
申请号：US15452312
申请日：2017-03-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chandra S. NAMUDURI , Lei HAO , Thomas W. NEHL
IPC: F02N11/08
CPC classification number: F02N11/0848 , F02N11/08 , F02N11/0862 , F02N15/023 , F02N15/067 , F02N2011/0896 , F02N2200/041 , F02N2200/044 , F02N2200/047 , F02N2300/108
Abstract: A vehicle propulsion system includes an engine configured to be selectively activated to provide torque to propel the vehicle and a starter module coupled to the engine and configured to start the engine from an inactive state. The starter module includes a brushless electric machine to generate an output torque to crank start the engine. The starter motor also includes a pinion gear coupled to the electric machine, where the pinion gear is actuatable to selectively engage a cranking input of the engine. A controller assembly is programmed to cause actuation of the pinion gear to engage the cranking input of the engine and transfer a cranking torque to activate the engine.
-
公开(公告)号：US20240250570A1
公开(公告)日：2024-07-25
申请号：US18312029
申请日：2023-05-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Lei HAO , Qigui WANG , John S. AGAPIOU , Thomas W. NEHL , Xiaohui DU
IPC: H02K3/02
CPC classification number: H02K3/02
Abstract: An electric motor includes a stator and a rotor rotatable relative to the stator and having an air gap between the rotor and the stator, wherein at least one of the stator and the rotor include a plurality of windings formed from ultra-conducting copper foil.
-
公开(公告)号：US20220402395A1
公开(公告)日：2022-12-22
申请号：US17350696
申请日：2021-06-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rashmi PRASAD , Chandra S. NAMUDURI , Suresh GOPALAKRISHNAN , Thomas W. NEHL , David J. BROOKS
Abstract: A charging system includes a scalable power source for powering a motor of a vehicle and telematics and battery management modules. The scalable power source includes: N battery packs, where N is an integer greater than or equal to 3; and multiple switches connected to the N battery packs including N−1 switches for serially connecting the N battery packs between supply and return lines and a multiple of N switches for parallel connecting the N battery packs to the supply and return lines. The telematics module requests capability of a charging station and receives a response signal from a device indicating the capability of the charging station. The battery management module: based on the capability of the charging station, selects one of the available arrangements in which to connect the N battery packs, sets states of the multiple switches; and then charges the N battery packs based on the states.
-
公开(公告)号：US20210036643A1
公开(公告)日：2021-02-04
申请号：US16527846
申请日：2019-07-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yue-Yun WANG , Lei HAO , Alireza FATEMI , Thomas W. NEHL , Chandra S. NAMUDURI
Abstract: A current command module is configured to, based on a direct current (DC) bus voltage for an electric motor of the vehicle, generate a d-axis current command for the electric motor and a q-axis current command for the electric motor. A voltage command module configured to generate voltage commands based on the d-axis current command and the q-axis current command. A battery switching control module is configured to: determine a voltage operating state of a battery based on the voltage commands; compare a battery parameter to at least one of a predetermined voltage parameter and a predetermined current parameter during a dwell time when a plurality of switches of the battery are open; and generate a switch control signal to transition at least one switch of the plurality of switches to cause the battery to operate in the voltage operating state based on the comparison.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
