-
公开(公告)号：US10087815B2
公开(公告)日：2018-10-02
申请号：US14790387
申请日：2015-07-02
Applicant: GM Global Technology Operations LLC
Inventor： Sanjeev M. Naik , Yue-Ming Chen , Irina N. Dmitrieva
Abstract: A system includes a temperature estimation module and a pump control module. The temperature estimation module estimates a temperature of coolant flowing through an engine. The temperature estimation module estimates a temperature of a cylinder wall in the engine based on the estimated coolant temperature and a measured coolant temperature. The pump control module controls a coolant pump to adjust an actual rate of coolant flow through the engine based on the estimated cylinder wall temperature.
-
公开(公告)号：US09644548B2
公开(公告)日：2017-05-09
申请号：US14873583
申请日：2015-10-02
Applicant: GM Global Technology Operations LLC
Inventor： Zhijian James Wu , Sanjeev M. Naik , Joshua D. Cowgill , Martino Casetti
CPC classification number: F02D35/0007 , F01L1/34 , F02B37/186 , F02D37/02 , F02D41/0002 , F02D41/0007 , F02D41/005 , F02D41/0077 , F02D41/1447 , F02D41/145 , F02D41/1456 , F02D41/18 , F02D41/26 , F02D41/30 , F02D41/3005 , F02D2041/001 , F02D2200/00 , F02D2200/021 , F02D2200/04 , F02D2200/0406 , F02D2200/0614 , F02D2200/101 , F02D2200/703 , F02P5/15 , F02P5/1502 , G01K7/42 , G01K13/02 , G01K2013/024 , G01K2205/04 , G01M15/102 , G07C5/0841 , Y02T10/144
Abstract: A control system for an engine of a vehicle includes an adder module that determines a pressure sum based on a sum of a plurality of pressures determined based on (i) a plurality of operating parameters of the vehicle and (ii) a plurality of predetermined values calibrated for determining an estimated pressure at a location within an exhaust system of the vehicle. An estimating module determines the estimated pressure at the location within the exhaust system based on the pressure sum and a reference pressure. An actuator control module selectively adjusts at least one engine actuator based on the estimated pressure.
-
公开(公告)号：US09458778B2
公开(公告)日：2016-10-04
申请号：US13798586
申请日：2013-03-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Allen B. Rayl , Randall S. Beikmann , Sanjeev M. Naik
CPC classification number: F02D41/0087 , F01L13/0005 , F01L2013/001 , F02D17/02 , F02D41/021 , F02D41/0225 , F02D41/1401 , F02D2041/0012 , F02D2041/141 , F02D2041/1412 , F02D2041/1437
Abstract: A ranking module determines N ranking values for N predetermined cylinder activation/deactivation sequences of an engine, respectively. N is an integer greater than or equal to two. A cylinder control module, based on the N ranking values, selects one of the N predetermined cylinder activation/deactivation sequences as a desired cylinder activation/deactivation sequence for cylinders of the engine. The cylinder control module also: activates opening of intake and exhaust valves of first ones of the cylinders that are to be activated based on the desired cylinder activation/deactivation sequence; and deactivates opening of intake and exhaust valves of second ones of the cylinders that are to be deactivated based on the desired cylinder activation/deactivation sequence. A fuel control module provides fuel to the first ones of the cylinders and disables fueling to the second ones of the cylinders.
Abstract translation: 排序模块分别确定发动机的N个预定气缸启动/停用序列的N个排序值。 N是大于或等于2的整数。 气缸控制模块基于N个排序值，选择N个预定气缸启动/停用顺序中的一个作为发动机气缸的期望气缸启动/停用顺序。 气缸控制模块还：基于所需的气缸启动/停止顺序，激活要启动的第一气缸的进气门和排气门的打开; 并且基于期望的气缸激活/去激活顺序来停用要被去激活的第二个气缸的进气门和排气门的打开。 燃料控制模块向第一气缸提供燃料，并且禁止向第二气缸供油。
-
公开(公告)号：US20250062676A1
公开(公告)日：2025-02-20
申请号：US18451978
申请日：2023-08-18
Applicant: GM Global Technology Operations LLC
Inventor： Yilun Luo , Muhammad Hussain Alvi , Junghoon Kim , Chandra S. Namuduri , Rashmi Prasad , Khorshed Mohammed Alam , Sanjeev M. Naik
Abstract: A vehicle includes an inverter having a power module. The power module includes a high side bus, a low side bus and an alternating current (AC) output bus. The high side bus includes a first switch, wherein a high side current is configured to flow through the first switch in a first direction. The high side bus is disposed in a plane. The low side bus includes a second switch, wherein a low side current is configured to flow through the second switch in the first direction. The low side bus is parallel to the high side bus. The alternating current (AC) output bus is parallel to the high side bus and the low side bus, wherein an output current flows through the AC output bus in a second direction opposite to the first direction.
-
公开(公告)号：US12212227B2
公开(公告)日：2025-01-28
申请号：US17865482
申请日：2022-07-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Hong Nguyen , Michael Z. Pieszala , Yilun Luo , Khorshed Mohammed Alam , Sanjeev M. Naik , Benjamin S. Ngu
IPC: H02M1/08 , H02M1/00 , H02M7/5395 , H03K17/04 , H03K17/16 , H02M7/5387 , H03K17/041 , H03K17/042
Abstract: A variable current gate driver for a transistor includes a first current control device having a first controllable output current. The first current control device is electrically connected between a first bus and an activator of the transistor, and a second current control device having a second controllable output current. The second current control device is electrically connected between the activator of the transistor and a second bus. A controller is operatively connected to the first and second current control devices to control the first and second controllable output currents to control the first and second current control devices to control activation of the transistor via the activator. The controller is operative to control the first and second current control devices to control a slew rate of the transistor.
-
Patent Agency Ranking
公开(公告)号：US20250026216A1
公开(公告)日：2025-01-23
申请号：US18354741
申请日：2023-07-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Minh-Khai Nguyen , Lei Hao , Chandra S. Namuduri , Sanjeev M. Naik
Abstract: Embodiments include an electric vehicle having a charging port configured to receive an alternating current (AC) power, a direct current (DC) battery, and a bidirectional inverter configured to convert AC power to DC power and to convert DC power to AC power, the bidirectional inverter is selectively connected to the DC battery by propulsion switches. The electric vehicle also includes an AC motor connected to the bidirectional inverter and selectively connected to the charging port by a first charging switch, an isolated DC/DC converter motor selectively connected to the DC battery via a second charging switch and a third charging switch, and a processor configured to control the operation of the propulsion switches, the first charging switch, the second charging switch, and the third charging switch based on an operational mode of the electric vehicle.
-
公开(公告)号：US09745889B2
公开(公告)日：2017-08-29
申请号：US14790384
申请日：2015-07-02
Applicant: GM Global Technology Operations LLC
Inventor： Sanjeev M. Naik , Yue-Ming Chen , Irina N. Dmitrieva
CPC classification number: F01P7/167 , F01P3/02 , F01P3/20 , F01P5/10 , F01P5/14 , F01P7/164 , F01P2003/001 , F01P2003/021 , F04B49/02 , F04B51/00 , F04B2203/0605
Abstract: A system according to the principles of the present disclosure includes a heat transfer rate module, a desired flow rate module, a flow rate adjustment module, and a pump control module. The heat transfer rate module determines a rate of heat transfer from an engine to coolant flowing through the engine based on a cylinder wall temperature and a measured coolant temperature. The desired flow rate module determines a desired rate of coolant flow through the engine based on the heat transfer rate. The flow rate adjustment module determines a coolant flow rate adjustment based on a desired coolant temperature and the measured coolant temperature. The pump control module controls a coolant pump to adjust an actual rate of coolant flow through the engine based on the desired coolant flow rate and the coolant flow rate adjustment.
-
公开(公告)号：US20250107051A1
公开(公告)日：2025-03-27
申请号：US18474637
申请日：2023-09-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yilun Luo , Ronald O. Grover, JR. , Sanjeev M. Naik , Chandra S. Namuduri , Rashmi Prasad , Junghoon Kim , Peng Peng
IPC: H05K7/20
Abstract: Embodiments of the present disclosure are directed to power module cooling systems. In particular, some embodiments of the present disclosure relate to power module cooling systems with structures to generate three-dimensional swirling and tumbling in liquid coolant flowing within a chamber of the cooling system. Other embodiments may be disclosed or claimed.
-
公开(公告)号：US20240429773A1
公开(公告)日：2024-12-26
申请号：US18339822
申请日：2023-06-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yilun Luo , John Diemer , Jack M. Gayney , Patrick S. Portell , Sanjeev M. Naik , Azadeh Narimissa , Mohammad F. Momen
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.
-
10.发明授权公开(公告)号：US09840962B2
公开(公告)日：2017-12-12
申请号：US14877112
申请日：2015-10-07
Applicant: GM Global Technology Operations LLC
Inventor： Eugene V. Gonze , Yue-Ming Chen , Vijay Ramappan , Sanjeev M. Naik
CPC classification number: F01P7/167 , F01P2007/146 , F01P2037/00
Abstract: A system including a target module determining a target temperature of coolant at an input of an engine for a maximum amount of fuel efficiency. A mode module disables closed loop control based on temperatures of coolant entering the engine and at an output of a radiator. An open loop module determines first and second temperatures of coolant at inputs of a coolant control valve that receive coolant from the radiator and a channel that bypasses the radiator. A ratio module determines a ratio based on the first and second temperatures and the temperatures of the coolant entering the engine and at the radiator output. A closed loop module generates a correction value based on the target temperature and the temperature of the coolant entering the engine. A position module adjusts the coolant control valve based on the ratio, the correction value and whether closed loop control is disabled.
-
-
-
-
-
-
-
-
-
Search Results
27
records
(took 0.015 seconds)
