公开(公告)号：US20230046910A1

公开(公告)日：2023-02-16

申请号：US17403177

申请日：2021-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Neeraj S. Shidore ,  Srinivasa Rao Vaddiraju ,  Satish P. Ketkar ,  Norman K. Bucknor ,  Madhusudan Raghavan

IPC: B60L58/26 ,  F28D20/02 ,  H01M10/625 ,  H01M10/613 ,  H01M10/659 ,  H01M10/66

Abstract: A modular system for thermal control of a vehicle component includes a modular thermal control unit configured to be removably installed in a vehicle, the modular thermal control unit including a housing, a heat exchange component, and a connection assembly configured to removably connect the heat exchange component in thermal communication with a thermal loop of the vehicle.

公开(公告)号：US20230322106A1

公开(公告)日：2023-10-12

申请号：US17715593

申请日：2022-04-07

Applicant: GM Global Technology Operations LLC

Inventor： Richard J. Lopez ,  Srinivasa Rao Vaddiraju

IPC: B60L53/302 ,  B60L53/16 ,  B60L53/31 ,  H05K7/20

CPC classification number: B60L53/302 ,  H05K7/20936 ,  B60L53/31 ,  B60L53/16

Abstract: A charging station for a vehicle, a system and a method of charging the vehicle. The system includes a heat exchanger at the vehicle. The charging station includes a reservoir including a charging station coolant, a dispenser unit configured to circulate the charging station coolant from the reservoir through the vehicle to absorb heat generated at the vehicle, and a cooling unit for cooling the charging station coolant from the reservoir. Heat generated during the charging of the vehicle is transferred into a vehicle coolant circulating within the vehicle. The heat is transferred from the vehicle coolant to a charging station coolant. The charging station coolant is flowed out of the vehicle.

公开(公告)号：US20230322049A1

公开(公告)日：2023-10-12

申请号：US17714289

申请日：2022-04-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jacob Wright ,  Srinivasa Rao Vaddiraju ,  David O'Rourke

IPC: B60H1/32

CPC classification number: B60H1/323

Abstract: A heating, ventilation and air conditioning (HVAC) system of a vehicle includes a main compressor positioned along a refrigerant circuit circulating a flow of refrigerant therethrough. A chiller is located along the refrigerant circuit and is fluidly connected to a rechargeable energy storage system to cool the rechargeable energy storage system. A chiller outlet passage directs the flow of refrigerant from the chiller toward the main compressor, and an evaporator is located along the refrigerant circuit in a fluidly parallel relationship with the chiller. The evaporator is configured to cool a vehicle cabin. An evaporator outlet passage directs the flow of refrigerant from the evaporator toward the main compressor, and an auxiliary compressor is located along the evaporator outlet passage between the evaporator and the main compressor.

公开(公告)号：US20220212566A1

公开(公告)日：2022-07-07

申请号：US17142347

申请日：2021-01-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Srinivasa Rao Vaddiraju

IPC: B60L58/26 ,  H01M10/625 ,  H01M10/613 ,  H01M10/635

Abstract: A method is usable for cooling portions of a vehicle having a plurality of low temperature radiators (LTR), a rechargeable energy storage system (RESS), an i-condenser coolant circuit, and a RESS coolant circuit. Cooling the RESS occurs by comparing ambient temperature to target low and high temperatures. If the ambient temperature is below the target low temperature, coolant flow is routed through a first flow path placing the first and second LTR in the RESS coolant circuit. If the ambient temperature is between the target low and high temperatures, coolant flow is routed through a second flow path placing the first LTR in the RESS coolant circuit and the second LTR in the i-condenser coolant circuit. If the ambient temperature is above the target high temperature, coolant flow is routed through a third flow path placing the first and second LTR in the i-condenser coolant circuit.

公开(公告)号：US20220118866A1

公开(公告)日：2022-04-21

申请号：US17074541

申请日：2020-10-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Taeyoung Han ,  Chih-hung Yen ,  Kuo-huey Chen ,  Bahram Khalighi ,  Vicente Domenech-Llopis ,  Srinivasa Rao Vaddiraju ,  Satish P. Ketkar

IPC: B60L53/302 ,  B60L53/16 ,  H05K7/20

Abstract: An electric vehicle charging port includes a pair of charging pins each connected to a respective charging cable by a base. A pair of porous metallic cages surround the base of the pair of charging pins. A phase change material disposed in the pair of porous metallic cages and a vapor chamber is disposed between the base of the pair of charging pins and the pair of porous cage. The phase change material with an optional vapor chamber and high thermal conductivity (metal or graphite) foam or mesh to provide faster response of transient heat generation.

公开(公告)号：US09770973B1

公开(公告)日：2017-09-26

申请号：US15212907

申请日：2016-07-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Srinivasa Rao Vaddiraju

IPC: B60K11/08 ,  B62D25/08 ,  B60K11/04

CPC classification number: B60K11/08 ,  B60K11/04 ,  B62D25/082 ,  B62D35/02 ,  Y02T10/88

Abstract: An engine compartment assembly and a vehicle include an engine compartment. The engine compartment assembly and the vehicle also include an inlet configured to allow a flow of air into the engine compartment and an outlet configured to allow at least some of the flow of air out of the engine compartment. The engine compartment assembly and the vehicle further include a wall disposed closer to the outlet than the inlet. Generally, the wall extends in a manner to create an air dam which enhances the flow of air through at least part of the engine compartment. In certain embodiments, the wall extends outwardly from the belly pan away from the engine compartment to create a pressure reduction at the outlet which in turn enhances the flow of air through at least part of the engine compartment.

公开(公告)号：US20230147794A1

公开(公告)日：2023-05-11

申请号：US17521990

申请日：2021-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Srinivasa Rao Vaddiraju ,  Jeffrey A. Bozeman

IPC: B60H1/00 ,  B60H1/03

CPC classification number: B60H1/00492 ,  B60H1/00899 ,  B60H1/03 ,  B60H2001/00928

Abstract: A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system includes a refrigerant circuit having a flow of refrigerant circulated therethrough. The refrigerant circuit includes a compressor, an internal condenser, and a chiller heat exchanger. A coolant circuit is fluidly connected to the refrigerant circuit and has a flow of coolant circulated therethrough. The coolant circuit includes the chiller heat exchanger, the internal condenser, a heater core, a rechargeable energy storage system (RESS), and a three-way coolant valve to selectably direct the flow of coolant through the RESS and/or along a bypass passage to bypass the RESS.

公开(公告)号：US11207973B1

公开(公告)日：2021-12-28

申请号：US17068948

申请日：2020-10-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Srinivasa Rao Vaddiraju ,  Nicholas J. Christoff

IPC: B60K11/08 ,  B62D35/00

Abstract: An actively controlled flap system includes a bar defining a rotational axis, a first flap rotatably coupled to the bar and configured to rotate about the rotational axis, and a second flap rotatably coupled to the bar and configured to rotate about the rotational axis, the second flap including an opening extending through the second flap. The first flap is rotatable between a first position in which the opening in the second flap is covered by the first flap and a second position in which the opening in the second flap is uncovered, and the second flap is rotatable between a third position and a fourth position.

公开(公告)号：US20210155074A1

公开(公告)日：2021-05-27

申请号：US16692605

申请日：2019-11-22

Applicant: GM Global Technology Operations LLC

Inventor： Srinivasa Rao Vaddiraju ,  Christopher M. Frizza ,  Todd C. Marhenke

IPC: B60H1/00

Abstract: Methods and systems to dissipate heat in a vehicle include a first condenser portion, and a second condenser portion arranged parallel with the first condenser portion. The system includes a fan arranged parallel with the first condenser portion and the second condenser portion. The fan draws air flow from the first condenser portion and the second condenser portion. The system also includes a radiator arranged substantially perpendicular with the first condenser portion and the second condenser portion, and one or more covers controlled to an open or closed position. A controller controls the position of the one or more controlled covers.

公开(公告)号：US11731532B2

公开(公告)日：2023-08-22

申请号：US17142347

申请日：2021-01-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Srinivasa Rao Vaddiraju

IPC: B60L58/26 ,  H01M10/625 ,  H01M10/635 ,  H01M10/613

CPC classification number: B60L58/26 ,  H01M10/613 ,  H01M10/625 ,  H01M10/635 ,  B60L2250/18 ,  H01M2220/20

Abstract: A method is usable for cooling portions of a vehicle having a plurality of low temperature radiators (LTR), a rechargeable energy storage system (RESS), an i-condenser coolant circuit, and a RESS coolant circuit. Cooling the RESS occurs by comparing ambient temperature to target low and high temperatures. If the ambient temperature is below the target low temperature, coolant flow is routed through a first flow path placing the first and second LTR in the RESS coolant circuit. If the ambient temperature is between the target low and high temperatures, coolant flow is routed through a second flow path placing the first LTR in the RESS coolant circuit and the second LTR in the i-condenser coolant circuit. If the ambient temperature is above the target high temperature, coolant flow is routed through a third flow path placing the first and second LTR in the i-condenser coolant circuit.