Control of fuel injection in an internal combustion engine based on converged fuel injector slope

    公开(公告)号:US10760523B1

    公开(公告)日:2020-09-01

    申请号:US16443310

    申请日:2019-06-17

    Abstract: A system and method for controlling operation of an internal combustion engine having at least one fuel injector. A controller is configured to selectively command the at least one fuel injector to deliver a primary fuel injection of a first fuel quantity and a secondary fuel injection of a second fuel quantity. The first fuel quantity is above a predefined threshold and the second fuel quantity is at or below the predefined threshold. The controller is configured to command a primary pulse width and a secondary pulse width, based in part on a respective desired fuel injection mass and respective initialized values of fuel injector slope. Operation of the fuel injectors is controlled based in part on a converged primary fuel injector slope and a converged secondary fuel injector slope determined at partially from a comparison of a calculated fuel mass and an estimated fuel mass.

    ENGINE TORQUE CONTROL WITH FUEL MASS
    13.
    发明申请
    ENGINE TORQUE CONTROL WITH FUEL MASS 有权
    发动机扭矩控制与燃油质量

    公开(公告)号:US20160363085A1

    公开(公告)日:2016-12-15

    申请号:US14735660

    申请日:2015-06-10

    Abstract: An engine assembly includes an internal combustion engine with an engine block having at least one cylinder. An intake manifold and an exhaust manifold are each fluidly connected to the at least one cylinder and define an intake manifold pressure (pi) and an exhaust manifold pressure (pe), respectively. A controller is operatively connected to the internal combustion engine and configured to receive a torque request (TR). The controller is programmed to determine a desired fuel mass (mf) for controlling a torque output of the internal combustion engine. The desired fuel mass (mf) is based at least partially on the torque request (TR), the intake and exhaust manifold pressures and a pressure-volume (PV) diagram of the at least one cylinder.

    Abstract translation: 发动机组件包括具有至少一个气缸的发动机缸体的内燃机。 进气歧管和排气歧管各自流体地连接到至少一个气缸并且分别限定进气歧管压力(pi)和排气歧管压力(pe)。 控制器可操作地连接到内燃机并且被配置为接收扭矩请求(TR)。 控制器被编程以确定用于控制内燃机的扭矩输出的期望燃料质量(mf)。 所需的燃料质量(mf)至少部分地基于所述至少一个气缸的扭矩要求(TR),进气和排气歧管压力以及压力 - 体积(PV)图。

    FAST CHARGING CAPABLE MIXED CHEMISTRY BATTERY SYSTEMS

    公开(公告)号:US20250050758A1

    公开(公告)日:2025-02-13

    申请号:US18446569

    申请日:2023-08-09

    Abstract: A system for controlling power transfer includes a direct current (DC)-DC converter connected to a charging bus and selectively connected to a propulsion battery assembly and a supplemental battery assembly, the propulsion battery assembly having a first chemistry and configured to supply power to an electric motor of a vehicle, the supplemental battery assembly having a second chemistry that is different than the first chemistry. The system also includes a charger connected to the charging bus at a first side of the DC-DC converter, the charging bus connected to a load at a second side of the DC-DC converter, and a controller configured to control the DC-DC converter to perform a charging operation.

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