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公开(公告)号：US20150127207A1
公开(公告)日：2015-05-07
申请号：US14596387
申请日：2015-01-14
Applicant: Caterpillar Inc.
Inventor： Jackson Wai , Thuong Le , Adam Braun , Jesse Gerdes , James Siegle , Mark Hartman
IPC: B60L11/02
CPC classification number: B60L11/02 , B60K6/46 , B60L11/08 , B60L15/20 , B60W10/08 , B60W2050/0075 , B60W2300/17 , B60W2300/44 , B60W2510/0638 , E02F9/2075 , F02B63/042 , F02D29/06 , Y02T10/6217 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7275 , Y02T90/16 , Y10S903/902
Abstract: A control system for a generator of an electric drive is provided. The control system may include a converter circuit configured to communicate with one or more phases of a stator of the generator, and a controller in communication with the converter circuit and an engine associated with the electric drive. The controller may be configured to determine an operational state of the electric drive based on at least engine speed, and engage one of a map-lookup control scheme and a fixed-theta off control scheme for operating the generator based on the operational state of the electric drive.
Abstract translation: 提供一种用于电驱动发电机的控制系统。 控制系统可以包括被配置为与发电机的定子的一个或多个相位通信的转换器电路，以及与转换器电路和与电驱动器相关联的发动机通信的控制器。 控制器可以被配置为基于至少发动机速度来确定电动驱动器的操作状态，并且基于地图查找控制方案和固定关闭控制方案中的一个来操作发电机，所述方法基于操作状态 电驱动。
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Patent Agency Ranking
公开(公告)号：US10041461B2
公开(公告)日：2018-08-07
申请号：US15380465
申请日：2016-12-15
Applicant: Caterpillar Inc.
Inventor： Morteza Rezaei , Ioan Paduret , James Siegle
CPC classification number: F02M65/005 , F02D2200/063 , F02M21/02 , F02M63/0015 , F02M63/0054 , F16K37/0041 , Y02T10/32 , Y10T137/8242
Abstract: A system for detecting valve seating in a valve system such as a fuel admission valve system includes seat detection circuitry coupled with a low-side driver circuit in solenoid actuator circuitry for the valve system. The seat detection circuitry includes a voltage probe for sensing voltage in the solenoid actuator circuitry, delay circuitry, and a comparator coupled with the delay circuitry and the voltage probe and having an output dependent upon change in the sensed voltage over time. A timing of voltage changes is observed to enable valve seating detection.
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公开(公告)号：US09340113B2
公开(公告)日：2016-05-17
申请号：US14596387
申请日：2015-01-14
Applicant: Caterpillar Inc.
Inventor： Jackson Wai , Thuong Le , Adam Braun , Jesse Gerdes , James Siegle , Mark Hartman
IPC: B60L9/00 , B60L11/02 , E02F9/20 , F02B63/04 , F02D29/06 , B60K6/46 , B60L11/08 , B60L15/20 , B60W10/08 , B60W50/00
CPC classification number: B60L11/02 , B60K6/46 , B60L11/08 , B60L15/20 , B60W10/08 , B60W2050/0075 , B60W2300/17 , B60W2300/44 , B60W2510/0638 , E02F9/2075 , F02B63/042 , F02D29/06 , Y02T10/6217 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7275 , Y02T90/16 , Y10S903/902
Abstract: A control system for a generator of an electric drive is provided. The control system may include a converter circuit configured to communicate with one or more phases of a stator of the generator, and a controller in communication with the converter circuit and an engine associated with the electric drive. The controller may be configured to determine an operational state of the electric drive based on at least engine speed, and engage one of a map-lookup control scheme and a fixed-theta off control scheme for operating the generator based on the operational state of the electric drive.
Abstract translation: 提供一种用于电驱动发电机的控制系统。 控制系统可以包括被配置为与发电机的定子的一个或多个相位通信的转换器电路，以及与转换器电路和与电驱动器相关联的发动机通信的控制器。 控制器可以被配置为基于至少发动机速度来确定电动驱动器的操作状态，并且基于地图查找控制方案和固定关闭控制方案中的一个来操作发电机，所述方法基于操作状态 电驱动。
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公开(公告)号：US10544773B2
公开(公告)日：2020-01-28
申请号：US15141206
申请日：2016-04-28
Applicant: Caterpillar Inc.
Inventor： William Hoban , Morteza Rezaei , Ioan Paduret , James Siegle
Abstract: An engine ignition system for a spark-ignited engine includes a sparkplug and a control system having primary ignition circuitry, secondary ignition circuitry coupled with electrodes of the sparkplug, and sensing circuitry. A control device determines a timing of spark production based on a pattern of varying of an electrical property in the primary ignition circuitry. An inflection point in a sensed current signal may be detected to determine the timing.
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公开(公告)号：US20180171955A1
公开(公告)日：2018-06-21
申请号：US15380465
申请日：2016-12-15
Applicant: Caterpillar Inc.
Inventor： Morteza Rezaei , Ioan Paduret , James Siegle
CPC classification number: F02M65/005 , F02D2200/063 , F02M21/02 , F02M63/0015 , F02M63/0054 , F16K37/0041 , Y10T137/8242
Abstract: A system for detecting valve seating in a valve system such as a fuel admission valve system includes seat detection circuitry coupled with a low-side driver circuit in solenoid actuator circuitry for the valve system. The seat detection circuitry includes a voltage probe for sensing voltage in the solenoid actuator circuitry, delay circuitry, and a comparator coupled with the delay circuitry and the voltage probe and having an output dependent upon change in the sensed voltage over time. A timing of voltage changes is observed to enable valve seating detection.
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公开(公告)号：US20170314524A1
公开(公告)日：2017-11-02
申请号：US15141206
申请日：2016-04-28
Applicant: Caterpillar Inc.
Inventor： William Hoban , Morteza Rezaei , Ioan Paduret , James Siegle
CPC classification number: F02P17/12 , F02N2300/302 , F02P3/04 , F02P17/02
Abstract: An engine ignition system for a spark-ignited engine includes a sparkplug and a control system having primary ignition circuitry, secondary ignition circuitry coupled with electrodes of the sparkplug, and sensing circuitry. A control device determines a timing of spark production based on a pattern of varying of an electrical property in the primary ignition circuitry. An inflection point in a sensed current signal may be detected to determine the timing.
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