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公开(公告)号：US11981230B2
公开(公告)日：2024-05-14
申请号：US17551043
申请日：2021-12-14
申请人： Caterpillar Inc.
CPC分类号： B60L58/21 , B60L58/12 , H01M10/441 , B60L2200/40 , B60Y2200/415 , H01M2220/20
摘要： A method of operating a machine battery system having multiple battery packs connectable in parallel includes bringing a first battery pack with the highest offline pack voltage online for discharging, including a pack controller circuit of the first battery pack bringing one or more individual battery strings of the first battery pack online; bringing a next battery pack with a next highest offline pack voltage online when the next highest offline pack voltage is within a predetermined discharge threshold voltage of a load voltage, including the pack controller circuit bringing one or more individual battery strings of the next battery pack online; and waiting to bring the next battery pack online, when the next highest offline pack voltage is less than a predetermined discharge threshold voltage of the load voltage, until the next highest offline pack voltage is within the predetermined discharge threshold voltage.
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公开(公告)号：US11874342B2
公开(公告)日：2024-01-16
申请号：US17556691
申请日：2021-12-20
申请人： Caterpillar Inc.
IPC分类号： G01R31/74 , B60R16/033
CPC分类号： G01R31/74 , B60R16/033
摘要： A method of monitoring a fuse of a work machine includes sensing a fuse current; detecting when the fuse current exceeds a threshold; quantifying a difference current that is a difference between the fuse current and the threshold current when the fuse current exceeds the threshold current; determining an amount of time that the difference current is greater than zero; and generating an alert related to fuse lifetime according to the difference current and determined time.
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公开(公告)号：US09625512B2
公开(公告)日：2017-04-18
申请号：US14150119
申请日：2014-01-08
申请人： Caterpillar Inc.
CPC分类号： G01R31/025 , G01R31/086 , G01R31/343
摘要： A technique and system for detecting a location of a ground fault in an electrical system are provided. The technique and system include steps or components for determining a ground fault voltage, receiving a gate control signal associated with an electric load, comparing the ground fault voltage to the gate control signal, and determining whether the ground fault is located at the electric load based on the comparison of the ground fault voltage to the gate control signal.
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公开(公告)号：US20240227624A1
公开(公告)日：2024-07-11
申请号：US18613898
申请日：2024-03-22
申请人： Caterpillar Inc.
CPC分类号： B60L58/21 , B60L58/12 , H01M10/441 , B60L2200/40 , B60Y2200/415 , H01M2220/20
摘要： A method of operating a machine battery system having multiple battery packs connectable in parallel includes bringing a first battery pack with the highest offline pack voltage online for discharging, including a pack controller circuit of the first battery pack bringing one or more individual battery strings of the first battery pack online; bringing a next battery pack with a next highest offline pack voltage online when the next highest offline pack voltage is within a predetermined discharge threshold voltage of a load voltage, including the pack controller circuit bringing one or more individual battery strings of the next battery pack online; and waiting to bring the next battery pack online, when the next highest offline pack voltage is less than a predetermined discharge threshold voltage of the load voltage, until the next highest offline pack voltage is within the predetermined discharge threshold voltage.
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公开(公告)号：US20230182620A1
公开(公告)日：2023-06-15
申请号：US17551043
申请日：2021-12-14
申请人： Caterpillar Inc.
CPC分类号： B60L58/21 , B60L58/12 , H01M10/441 , B60L2200/40 , B60Y2200/415 , H01M2220/20
摘要： A method of operating a machine battery system having multiple battery packs connectable in parallel includes bringing a first battery pack with the highest offline pack voltage online for discharging, including a pack controller circuit of the first battery pack bringing one or more individual battery strings of the first battery pack online; bringing a next battery pack with a next highest offline pack voltage online when the next highest offline pack voltage is within a predetermined discharge threshold voltage of a load voltage, including the pack controller circuit bringing one or more individual battery strings of the next battery pack online; and waiting to bring the next battery pack online, when the next highest offline pack voltage is less than a predetermined discharge threshold voltage of the load voltage, until the next highest offline pack voltage is within the predetermined discharge threshold voltage.
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公开(公告)号：US20160362006A1
公开(公告)日：2016-12-15
申请号：US14734795
申请日：2015-06-09
申请人： Caterpillar Inc.
CPC分类号： B60L7/26 , B60L7/18 , B60L11/123 , B60L11/14 , B60L15/2009 , B60L2240/421 , B60L2240/423 , B60L2260/28 , B60L2270/145 , B60T7/12 , B60T8/172 , B60T13/586 , B60T13/66 , B60T2201/04
摘要： A system for managing braking torque in a machine uses a first braking system, a second braking system that is independent of the first braking system and a controller that monitors activity in both braking systems. The controller selectively reduces torque in the first braking system as torque in the second braking system increases to limit undesired effects of possible over-braking
摘要翻译： 用于管理机器中制动转矩的系统使用第一制动系统，独立于第一制动系统的第二制动系统和监控两个制动系统中的活动的控制器。 当第二制动系统中的扭矩增加时，控制器选择性地减小第一制动系统中的扭矩，以限制可能的过度制动的不期望的影响
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公开(公告)号：US11642967B2
公开(公告)日：2023-05-09
申请号：US16947290
申请日：2020-07-27
申请人： Caterpillar Inc.
发明人： Jonathan M. Baumann , Justin D. Middleton , Jason Lee Miller , Dustin Craig Selvey , Alexander C. Crosman, III
CPC分类号： B60L3/0046 , B60L53/20 , B60L58/20 , B60L2200/40 , B60L2240/54
摘要： A machine may a first high voltage interlocking loop (HVIL) system to provide power to one or more components of the machine, the first HVIL system comprising: a plurality of groups of batteries; a plurality of disconnect components connected to the plurality of groups of batteries; a plurality of sets of contactors, a set of contactors, of the plurality of sets of contactors, being connected to a group of batteries of the plurality of groups of batteries. The machine may a second HVIL system to receive power from a power source, the second HVIL system comprising: a port configured to receive a connector of the power source and receive power, from the power source via the connector, to charge the plurality of groups of batteries, wherein the second HVIL system is independent with respect to the first HVIL system.
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公开(公告)号：US20220090594A1
公开(公告)日：2022-03-24
申请号：US17025716
申请日：2020-09-18
申请人： Caterpillar Inc.
摘要： A monitor and control system for a hydraulic fracturing pump is described herein to reduce or eliminate harmful oscillations in fluid discharge pressure caused by the pump load dynamics. The monitor and control system receives various sensor data from the operation of the pump, including the pump crank position, and executes a pump control equation or model based on the pump sensor data, pump load data and/or pump speed data. Pump control equations or models are specific to the design and dynamic operation of the pump, incorporating the number of plungers, pump dynamics, motor lag and motor dynamics, etc. Using the pump control equations or models, the monitor and control system determines control commands for the pump motor to reduce or eliminate the oscillatory discharge pressure at the pump.
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公开(公告)号：US09676280B2
公开(公告)日：2017-06-13
申请号：US14734795
申请日：2015-06-09
申请人： Caterpillar Inc.
CPC分类号： B60L7/26 , B60L7/18 , B60L11/123 , B60L11/14 , B60L15/2009 , B60L2240/421 , B60L2240/423 , B60L2260/28 , B60L2270/145 , B60T7/12 , B60T8/172 , B60T13/586 , B60T13/66 , B60T2201/04
摘要： A system for managing braking torque in a machine uses a first braking system, a second braking system that is independent of the first braking system and a controller that monitors activity in both braking systems. The controller selectively reduces torque in the first braking system as torque in the second braking system increases to limit undesired effects of possible over-braking.
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公开(公告)号：US08635000B1
公开(公告)日：2014-01-21
申请号：US13676261
申请日：2012-11-14
申请人： Caterpillar Inc.
IPC分类号： G06F19/00
CPC分类号： E02F9/2083
摘要： A brake monitoring system for a machine has at least one traction motor coupled to drive wheels of the machine. An operator input device receives a requested retarding torque from an operator of the machine and sends a signal to a controller that is configured to compare the required retarding torque to a maximum retarding torque available at a particular speed of the traction motor. The controller selectively generates a warning signal based on a comparison of the required retarding torque to a maximum retarding torque available.
摘要翻译： 用于机器的制动监控系统具有耦合到机器的驱动轮的至少一个牵引马达。 操作员输入装置从机器的操作者接收请求的减速转矩，并将信号发送到控制器，控制器被配置为将所需的延迟转矩与在牵引电动机的特定速度下可用的最大延迟转矩进行比较。 控制器基于所需的延迟转矩与可用的最大延迟转矩的比较选择性地产生警告信号。
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