Powertrain and method of determining residual gas volume
    22.
    发明授权
    Powertrain and method of determining residual gas volume 有权
    动力总成和确定残余气体体积的方法

    公开(公告)号:US09068907B1

    公开(公告)日:2015-06-30

    申请号:US14270857

    申请日:2014-05-06

    Abstract: A method can be used to determine the total residual gas volume in a cylinder when the piston of an internal combustion engine is at the bottom dead center (BDC) position. The method includes: (a) measuring an intake manifold pressure and an exhaust manifold pressure; (b) determining a residual gas volume in the at least one cylinder originating from a current engine cycle; (c) determining a residual gas volume in the at least one intake port originating from at least one previous engine cycle; and (d) determining a total residual gas volume when the piston is at a BDC position based, at least in part, on the residual gas volume in the at least one cylinder originating from the current engine cycle and the residual gas volume in the at least one cylinder originating from at least one previous engine cycle.

    Abstract translation: 当内燃机的活塞处于下死点(BDC)位置时,可以使用一种方法来确定气缸中的总残余气体体积。 该方法包括:(a)测量进气歧管压力和排气歧管压力; (b)确定来自当前发动机循环的至少一个气缸中的残余气体体积; (c)确定源于至少一个先前发动机循环的至少一个进气口中的残余气体体积; 以及(d)至少部分地基于来自当前发动机循环的至少一个气缸中的残余气体体积和在所述发动机循环中的剩余气体体积来确定活塞处于BDC位置时的总剩余气体体积 至少一个气缸起始于至少一个先前的发动机循环。

    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.

    ENGINE TORQUE CONTROL WITH COMBUSTION PHASING
    30.
    发明申请
    ENGINE TORQUE CONTROL WITH COMBUSTION PHASING 有权
    发动机扭矩控制与燃烧相关

    公开(公告)号:US20160363059A1

    公开(公告)日:2016-12-15

    申请号:US14735653

    申请日:2015-06-10

    Abstract: An engine assembly includes an internal combustion engine with an engine block having at least one cylinder and at least one piston moveable within the at least one cylinder. A crankshaft is moveable to define a plurality of crank angles (CA) from a bore axis defined by the cylinder to a crank axis defined by the crankshaft. 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 combustion phasing (CAd) for controlling a torque output of the internal combustion engine. The desired combustion phasing is based at least partially on the torque request (TR) and a pressure-volume (PV) diagram of the at least one cylinder.

    Abstract translation: 发动机组件包括具有发动机缸体的内燃机,所述发动机缸体具有至少一个缸体,并且至少一个活塞可在所述至少一个气缸内移动。 曲轴可移动以从由气缸限定的孔轴线到由曲轴限定的曲柄轴线限定多个曲柄角(CA)。 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的燃烧定相(CAd)。 期望的燃烧定相至少部分地基于至少一个气缸的扭矩要求(TR)和压力 - 体积(PV)图。

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