Engine starting strategy to avoid resonant frequency
    92.
    发明公开
    Engine starting strategy to avoid resonant frequency 审中-公开
    引擎启动策略避免共振频率

    公开(公告)号:EP2685083A3

    公开(公告)日:2017-03-15

    申请号:EP13003202.2

    申请日:2013-06-24

    申请人: Caterpillar, Inc.

    IPC分类号: F02N11/00 F02D41/06 B60W20/00

    摘要: A machine (100) comprising an engine (102) operable at various engine speeds including a resonant frequency engine speed. The machine comprises a hybrid motor (118) operatively connected to the engine, the hybrid motor being adapted to apply power to the engine. An electronic control module (124) is configured to control the hybrid motor to apply power to the engine until at least a time when the engine speed exceeds the resonant frequency engine speed.

    摘要翻译: 一种机器(100),包括可在包括谐振频率发动机速度的各种发动机速度下操作的发动机(102)。 该机器包括可操作地连接到发动机的混合动力马达(118),该混合动力马达适于向发动机供电。 电子控制模块(124)配置成控制混合动力马达向发动机施加功率,直到至少发动机速度超过共振频率发动机速度的时间。

    INTERNAL COMBUSTION ENGINE
    94.
    发明公开
    INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机

    公开(公告)号:EP3134636A1

    公开(公告)日:2017-03-01

    申请号:EP15715464.2

    申请日:2015-03-12

    发明人: HAYASHI, Atsushi

    摘要: An EGR channel and an EGR valve are provided for introducing EGR gas into an intake channel upstream of a compressor that supercharges intake air. There is provided an intake bypass channel that connects the intake channel downstream of the compressor and the EGR channel immediately downstream the EGR valve along the direction of the flow of the EGR gas to each other, and a bypass valve capable of selecting a configuration of an intake air flow channel from among a first channel in which the intake air having passed through the compressor passes through the intake channel and flows into a cylinder and a second channel in which in the state where the EGR valve is closed, part of the intake air having passed through the compressor passes through the intake bypass channel and the EGR channel and is recirculated to a part upstream of the compressor.

    摘要翻译: EGR通道和EGR阀被设置用于将EGR气体引入到增压进气的压缩机上游的进气通道中。 提供了一种进气旁路通道,该进气旁路通道将压缩机下游的进气通道和紧邻EGR阀下游的EGR通道沿着EGR气体的流动方向彼此连接,旁通阀能够选择 从已经通过所述压缩机的进气经过所述进气通道并流入气缸的第一通道和所述EGR阀关闭的状态的第二通道中的进气流动通道的一部分, 已经通过压缩机的空气通过进气旁路通道和EGR通道并被再循环到压缩机的上游部分。

    FAST ENGINE SYNCHRONIZATION FOR RESTART MANAGEMENT
    97.
    发明公开
    FAST ENGINE SYNCHRONIZATION FOR RESTART MANAGEMENT 审中-公开
    SCHNELLE MOTORSYNCHRENISIERUNG ZUR NEUSTARTVERWALTUNG

    公开(公告)号:EP3126655A1

    公开(公告)日:2017-02-08

    申请号:EP15773649.7

    申请日:2015-03-30

    申请人: Cummins, Inc.

    IPC分类号: F02D41/06

    摘要: Systems and methods described herein provide a relatively fast engine restart. The systems and methods include receiving an engine stop command in a vehicle, the engine stop command structured to shut down an engine of the vehicle; receiving position data from a bi-directional sensor, the position data indicative of a position of a crankshaft wheel; determining a stop position of the crankshaft wheel based on the position data when the engine is shut down; determining a first viable cylinder of the engine to restart combustion in based on the determined stop position of the crankshaft wheel; and receiving an engine restart command, the engine restart command structured to restart the engine beginning with initiation of combustion in the first viable cylinder.

    摘要翻译: 本文所述的系统和方法提供相对较快的发动机重起。 所述系统和方法包括在车辆中接收发动机停止命令,所述发动机停止命令被构造成关闭所述车辆的发动机; 从双向传感器接收位置数据,所述位置数据指示曲轴轮的位置; 当发动机关闭时,基于位置数据确定曲轴轮的停止位置; 基于所确定的曲轴轮的停止位置,确定所述发动机的第一可行缸重启燃烧; 并且接收到发动机重起命令,所述发动机重起命令被构造成从所述第一可行缸中的燃烧开始开始重新启动所述发动机。

    METHOD AND SYSTEM FOR DETECTING A HYDROSTATIC LOCK DURING THE ENGINE START
    98.
    发明公开
    METHOD AND SYSTEM FOR DETECTING A HYDROSTATIC LOCK DURING THE ENGINE START 审中-公开
    VERFAHREN UND系统ZER ERKENNUNG EINER HYDROSTATISCHEN SPERREWÄHRENDEINES MOTORSTARTS

    公开(公告)号:EP3114341A1

    公开(公告)日:2017-01-11

    申请号:EP15705338.0

    申请日:2015-01-26

    发明人: GRANÀ, Daniele

    摘要: The aim of the invention is to detect the hydrostatic lock before in a more reliable way (1). The starting event system is equipped with a speed measurement arrangement (8, 9) and a control unit (7). The control unit has an acceleration calculation unit (10) to calculate acceleration of the crankshaft (6) by using the received speed measurement data. The system is further provided with an air compression device (11) and an air delivery arrangement (14, 15, 16) to deliver the compressed air into cylinders (2) of the engine in order to rotate the crankshaft slowly. The control unit (10) is further provided with a detector unit (19) that is in connection with the acceleration unit in order to detect a hydrostatic lock in at least one cylinder of the engine.

    摘要翻译: 本发明的目的是以更可靠的方式检测静液压锁定(1)。 启动事件系统配备有速度测量装置(8,9)和控制单元(7)。 控制单元具有通过使用接收到的速度测量数据来计算曲轴(6)的加速度的加速度计算单元(10)。 该系统还设置有空气压缩装置(11)和空气输送装置(14,15,16),以将压缩空气输送到发动机的气缸(2)中,以便缓慢地旋转曲轴。 控制单元(10)还设置有与加速单元连接的检测器单元(19),以便检测发动机的至少一个气缸中的静液压锁定。

    CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
    99.
    发明公开
    CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机控制系统

    公开(公告)号:EP3088715A1

    公开(公告)日:2016-11-02

    申请号:EP16167101.1

    申请日:2016-04-26

    摘要: A control system reduces the amount of fuel injected from a second fuel injector (11) in one cycle to an amount smaller than a second basic injection amount according to operating conditions of an internal combustion engine, and increases the amount of fuel injected from a first fuel injector (5) in one cycle to an amount larger than a first basic injection amount according to operating conditions of the engine, during a predetermined period after a flow restricting operation is finished, so as to reduce fluctuations in the air-fuel ratio due to fluctuations in the wall temperature.

    摘要翻译: 控制系统根据内燃机的运行条件将在一个循环中从第二燃料喷射器(11)喷射的燃料量减少到小于第二基本喷射量的量,并且增加从第一燃料喷射器 在流量限制动作结束后的规定期间内,根据发动机的运转状态,将燃料喷射阀(5)的流量控制为比第一基本喷射量大的量,从而减少所述空燃比的变动 到壁温的波动。