ELECTRIC DRIVE SYSTEM FOR A VEHICLE

    公开(公告)号:US20230032971A1

    公开(公告)日:2023-02-02

    申请号:US17876267

    申请日:2022-07-28

    Abstract: A method includes monitoring one or more of an ambient condition or an operational condition of a vehicle system while the vehicle system is stationary and a propulsion system of the vehicle system is operating at an idle speed, determining whether the one or more of the ambient condition or the operational condition satisfy one or more reduced auxiliary or parasitic load criteria, reducing one or more of an auxiliary load or a parasitic load responsive to determining that the one or more ambient condition or the operational condition satisfy the one or more reduced auxiliary or parasitic load criteria, and subsequently reducing the idle speed at which the propulsion system is operating to a slower speed following reducing the one or more of the auxiliary load or the parasitic load.

    CONTROL SYSTEM FOR DETERMINING BIOFUEL CONTENT
    3.
    发明申请
    CONTROL SYSTEM FOR DETERMINING BIOFUEL CONTENT 有权
    用于确定生物体内容物的控制系统

    公开(公告)号:US20130219862A1

    公开(公告)日:2013-08-29

    申请号:US13781131

    申请日:2013-02-28

    Applicant: Cummins Inc.

    Abstract: A system includes an internal combustion engine having an air intake, a fuel inlet, and exhaust outlet. The system further includes a NOx sensor operably coupled to the exhaust outlet and structured to provide an exhaust O2 value, and a controller structured to functionally execute operations for determining a tank biofuel value. The controller includes an operation conditions module that interprets an intake O2 value, the exhaust O2 value, and a biofuel O2 correlation, an O2 fuel determination module that determines an O2 biofuel value in response to the intake O2 value, the exhaust O2 value, and the biofuel O2 correlation, and a fuel composition module that determines a tank biofuel value in response to the O2 biofuel value. The controller further includes a biofuel reporting module that provides the tank biofuel value.

    Abstract translation: 一种系统包括具有进气口,燃料入口和排气出口的内燃机。 该系统还包括可操作地耦合到排气出口并被构造成提供排气O2值的NOx传感器,以及被构造成功能地执行用于确定罐生物燃料值的操作的控制器。 控制器包括解释进气O2值,排气O2值和生物燃料O2相关性的操作条件模块,O 2燃料确定模块,其响应于进气O2值,排气O2值和O2排出量确定O2生物燃料值 生物燃料O2相关性以及响应于O2生物燃料值确定罐生物燃料值的燃料组成模块。 控制器还包括提供罐生物燃料值的生物燃料报告模块。

    ELECTRIC DRIVE SYSTEM FOR A VEHICLE

    公开(公告)号:US20230029939A1

    公开(公告)日:2023-02-02

    申请号:US17876310

    申请日:2022-07-28

    Abstract: An electric drive system for a vehicle and method includes controlling a propulsion system of the vehicle to operate according to a first torque-speed relationship between a power generated by an engine and a speed of the engine. The engine is controlled according to the first torque-speed relationship during acceleration of the vehicle by motors that are powered by operation of the engine. The method includes determining that operation of the propulsion system has reached a steady state following the propulsion system operating according to the first torque-speed relationship and controlling the propulsion system to operate according to a second torque-speed relationship between the power and the speed of the engine. The second torque-speed relationship is reduced relative to the first torque-speed relationship such that the engine speed in the first torque-speed relationship is associated with a greater amount of power than in the second torque-speed relationship.

    COOPERATIVE CAM PHASER AND AIR THROTTLE CONTROL
    8.
    发明申请
    COOPERATIVE CAM PHASER AND AIR THROTTLE CONTROL 有权
    合作相机和空气控制

    公开(公告)号:US20170044999A1

    公开(公告)日:2017-02-16

    申请号:US14826969

    申请日:2015-08-14

    Applicant: Cummins Inc.

    Abstract: Methods and apparatus relate to air handling for an internal combustion engine system, particularly utilizing premixed air and fuel. The engine system includes an intake air throttle (IAT) having a position set in response to the engine speed and a variable valve timing module having an intake valve timing set in response to the engine load. The variable valve timing module may be a cam phaser having a position at or between full retard and full advance positions. The engine system may operate in a transient mode or a fuel efficiency mode. The IAT position is adjusted in response to an engine speed error value or set at full throttle. The cam phaser position is adjusted in response to a pressure difference across the IAT, the engine speed, or is set to a limit position.

    Abstract translation: 方法和装置涉及内燃机系统的空气处理,特别是利用预混空气和燃料。 发动机系统包括具有响应于发动机转速而设定的位置的进气节气门(IAT)和具有响应于发动机负荷而设定的进气门正时的可变气门正时模块。 可变气门正时模块可以是具有在完全延迟和完全提前位置之间或之间的位置的凸轮相位器。 发动机系统可以在瞬时模式或燃料效率模式下操作。 IAT位置是根据发动机转速误差值进行调整或设定为全速。 响应于跨越IAT的压力差,发动机转速或者被设定为极限位置来调整凸轮相位器位置。

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