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公开(公告)号：US20150345417A1
公开(公告)日：2015-12-03
申请号：US14290112
申请日：2014-05-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yongjie Zhu , Jun-Mo Kang , Chen-Fang Chang
IPC: F02D41/18
CPC classification number: F02D41/18 , F02D41/144 , F02D2200/0402 , F02D2200/0406 , F02D2200/0411
Abstract: A method for estimating the volumetric efficiency in an internal combustion engine in real time includes the following steps: (a) monitoring an oxygen percentage of gases in the intake manifold using an oxygen sensor coupled to an intake manifold; and (b) determining, via a control module, a volumetric efficiency of the internal combustion engine in real time based, at least in part, on the oxygen percentage of the gases in the intake manifold.
Abstract translation: 一种用于实时估算内燃机的体积效率的方法包括以下步骤：（a）使用耦合到进气歧管的氧传感器监测进气歧管中的气体的氧百分比; 和（b）至少部分地基于进气歧管中的气体的氧气百分比，经由控制模块实时确定内燃机的体积效率。
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公开(公告)号：US09068907B1
公开(公告)日：2015-06-30
申请号：US14270857
申请日：2014-05-06
Applicant: GM Global Technology Operations LLC
Inventor： Jun-Mo Kang , Yongjie Zhu , Yiran Hu , Chen-Fang Chang , Hanho Yun
CPC classification number: F01N13/107 , F01N3/00 , F01N13/02 , F02D13/0207 , F02D13/0261 , F02D13/0265 , F02D41/00 , F02D41/0007 , F02D41/005 , F02D41/0062 , F02D2041/001 , Y02T10/144 , Y02T10/18 , Y02T10/47
Abstract: A method can be used to determine the total residual gas volume in a cylinder when the piston of an internal combustion engine is at the bottom dead center (BDC) position. The method includes: (a) measuring an intake manifold pressure and an exhaust manifold pressure; (b) determining a residual gas volume in the at least one cylinder originating from a current engine cycle; (c) determining a residual gas volume in the at least one intake port originating from at least one previous engine cycle; and (d) determining a total residual gas volume when the piston is at a BDC position based, at least in part, on the residual gas volume in the at least one cylinder originating from the current engine cycle and the residual gas volume in the at least one cylinder originating from at least one previous engine cycle.
Abstract translation: 当内燃机的活塞处于下死点（BDC）位置时，可以使用一种方法来确定气缸中的总残余气体体积。 该方法包括：（a）测量进气歧管压力和排气歧管压力; （b）确定来自当前发动机循环的至少一个气缸中的残余气体体积; （c）确定源于至少一个先前发动机循环的至少一个进气口中的残余气体体积; 以及（d）至少部分地基于来自当前发动机循环的至少一个气缸中的残余气体体积和在所述发动机循环中的剩余气体体积来确定活塞处于BDC位置时的总剩余气体体积 至少一个气缸起始于至少一个先前的发动机循环。
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公开(公告)号：US20250070351A1
公开(公告)日：2025-02-27
申请号：US18453432
申请日：2023-08-22
Applicant: GM Global Technology Operations LLC
Inventor： Yongjie Zhu , Chunhao J. Lee , Jun-mo Kang , Insu Chang
IPC: H01M50/242 , B60R16/033 , H01M10/04 , H01M50/202 , H01M50/211 , H01M50/249
Abstract: A pressure management system includes a pressure plate disposed at an initial position relative to a battery cell, the battery cell disposed in a housing, the pressure plate and the housing defining an enclosure, where an increase in an internal pressure of the battery cell causes an expansion force to be applied to the pressure plate. The system includes a mechanical linkage attached to the pressure plate, the mechanical linkage configured to translate the expansion force to a reverse force that is opposed to the expansion force, and a rotatable component connected to the mechanical linkage, the rotatable component configured to rotate from a first orientation to a second orientation based on lateral movement of the mechanical linkage to allow the pressure plate to move and increase a volume of the enclosure.
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公开(公告)号：US20250023120A1
公开(公告)日：2025-01-16
申请号：US18350488
申请日：2023-07-11
Applicant: GM Global Technology Operations LLC
Inventor： Insu Chang , Chen-fang Chang , Jun-mo Kang , Hanho Yun , Chunhao J. Lee , Yongjie Zhu , Nicholas W. Pinto
IPC: H01M10/42 , B60L50/64 , H01M10/052 , H01M10/48 , H01M50/204 , H01M50/249
Abstract: A vehicle includes a propulsion system having multiple electric motors. A battery system is connected to the electric motors via a direct current to direct current (DC-DC) converter and an inverter. The battery system includes a battery assembly having a plurality of battery modules. Each of the battery modules has multiple individual battery cells arranged in battery packs, a set of sensors configured to monitor a set of parameters of each battery pack, and a plurality of battery pack mounts. Each battery pack mount includes a base plate and a top plate and an actuator configured to alter a distance between plates. A monitoring unit is configured to monitor a value representative of a battery pack pressure, determine whether the value falls within a pressure threshold window, and maintain the value within the pressure threshold window by actively altering the battery pack pressure.
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25.发明申请
公开(公告)号：US20250015412A1
公开(公告)日：2025-01-09
申请号：US18347091
申请日：2023-07-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Yongjie Zhu , Louis G. Hector, JR. , Meinan He , Srikanth Arisetty , Mei Cai
IPC: H01M50/242 , B60L50/64 , H01M10/0525 , H01M50/209 , H01M50/231 , H01M50/249
Abstract: Excessive expansion of rechargeable batteries during recharging is a significant concern since the uncontrolled buildup of high internal battery pressures from expansion inside a confined space can lead to separator membrane failure and/or thermal runaway of a battery cell. A crushable foam or honeycomb insert layer is placed inside of a rigid battery fixture to automatically limit the progressive buildup of internal battery pressure due to charging-induced expansion of the battery cell during recharging. The crushable insert layer is included as part of the rigid battery fixture. Aluminum honeycomb cores and porous aluminum metal foam materials have a significant amount of crushability over a very wide range of compressive strains. Alternatively, a porous metal foam or metal honeycomb material may be infused with a liquid polymer (e.g., silicone, rubber, EDPM, or polyurethane) to enhance the mechanical properties of the polymer-infused metal foam or honeycomb metal/polymer composite material.
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公开(公告)号：US20240421623A1
公开(公告)日：2024-12-19
申请号：US18336095
申请日：2023-06-16
Applicant: GM Global Technology Operations LLC
Inventor： Xueyu Zhang , Yongjie Zhu , Chunhao J. Lee , Yue-Yun Wang , Madhumita Ramesh Babu , Chen-fang Chang , Jun-mo Kang
Abstract: A vehicle includes at least one electric motor configured to convert electric power to rotational motion, a battery system electrically connected to the at least one electric motor, and a controller coupled to the battery system. The controller includes a non-transitory computer readable memory and a processor. The memory stores a charging control software module configured to cause the processor to perform the method of: determining an optimum charging profile based at least partially on an available received charging power, an ambient temperature of the battery system, charging system constraints, and at least one driver preference.
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公开(公告)号：US20240416796A1
公开(公告)日：2024-12-19
申请号：US18336705
申请日：2023-06-16
Applicant: GM Global Technology Operations LLC
Inventor： Chunhao J. Lee , Suresh Gopalakrishnan , Yongjie Zhu , Dongxu Li , Muhammad Hussain Alvi
Abstract: A vehicle includes two or more battery packs configured to power a motor. A controller is configured to dynamically activate an operational mode during operation. The operational mode is one of multiple possible operational modes including a first operational mode defining a series connection between the two or more battery packs and second operational mode defining a parallel connection between the two or more battery packs. The connection between the battery packs is controlled by a first plurality of switches. A plurality of low voltage loads are connected to a subset of the battery packs in the battery packs such that a power output of the subset of the battery packs provides full power to the plurality of low voltage loads. The plurality of low voltage loads are connected to only the subset of the battery packs in both the first operational mode and the second operational mode.
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公开(公告)号：US20240391341A1
公开(公告)日：2024-11-28
申请号：US18323794
申请日：2023-05-25
Applicant: GM Global Technology Operations LLC
Inventor： Yongjie Zhu , Jun-mo Kang , Xueyu Zhang , Chunhao J. Lee , Chen-fang Chang , Madhumita Ramesh Babu
IPC: B60L53/62 , B60L58/12 , B60L58/16 , B60L58/24 , G01R31/367 , H01M10/625 , H01M10/633
Abstract: A method for controlling a vehicle charging and thermal operation includes monitoring at least a charge characteristic of a battery system and a thermal characteristic of the battery system. The method predicts a battery system temperature at a future time (t) based at least in part on the monitored characteristics using a predictive physics model and maintains the battery system temperature above a minimum temperature threshold and below a maximum temperature threshold by adjusting a charging profile based at least in part on the predicted battery system temperature.
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公开(公告)号：US12152893B2
公开(公告)日：2024-11-26
申请号：US17700996
申请日：2022-03-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yongjie Zhu , Dongxu Li , Yue-Yun Wang , Chen-Fang Chang , Chunhao J. Lee , Brandon D. Mazzara
Abstract: A trip energy estimation system for a vehicle includes a traffic speed module configured to determine an average traffic speed along a projected route, a path information module configured to output path information indicating route features along the projected route, a perceived speed module configured to output a perceived vehicle speed along the projected route based on the average traffic speed and the path information, and a dynamic driving module configured to calculate and output a predicted driver speed based on the perceived vehicle speed and a feedback input indicative of the predicted driver speed. The dynamic driving module is configured to execute a machine learning algorithm to calculate the predicted driver speed.
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公开(公告)号：US20240246511A1
公开(公告)日：2024-07-25
申请号：US18098823
申请日：2023-01-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meng Jiang , Louis G. Hector, JR. , Yongjie Zhu , David T. Proefke
CPC classification number: B60R25/241 , B60R25/25 , B60R25/34
Abstract: A system for key absence management in a vehicle configured to be started by an electronic key fob includes a key absence management controller that implements a method configured to authorize starting of the vehicle by monitoring presence and absence of the electronic key fob in the vehicle. If the controller finds the electronic key fob to be present in the vehicle, then the controller authorizes starting of the vehicle. If the controller finds the electronic key fob to be absent from the vehicle, then the controller authorizes starting of the vehicle based on detection of a keyless authority indicator. A vehicle configured to be started by an electronic key fob includes the system with the controller that implements the method.
