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    • 1. 发明授权
    • Engine brake control pressure strategy
    • 发动机制动控制压力策略
    • US06779506B1
    • 2004-08-24
    • US10668854
    • 2003-09-23
    • James T. BeaucaireDavid S. HlavacDavid V. Rodgers
    • James T. BeaucaireDavid S. HlavacDavid V. Rodgers
    • F02D1304
    • F02D41/3836F01L9/02F01L13/06F01L2800/00F02B3/06F02D13/04F02D41/12
    • An engine (10) has a hydraulic system (28) that serves both fuel injectors (22) and hydraulic actuators (40) of an engine brake that brakes the engine by controlling exhaust gas flow during engine braking. Pressure of the hydraulic fluid is set by an injection control strategy when a brake control pressure strategy is inactive. When the brake control pressure strategy is active, braking of the engine occurs when hydraulic fluid is delivered to the actuators. The brake control pressure strategy signals pressure of the hydraulic fluid supplied to the one or more actuators that is in excess of a pressure determined by a brake control pressure strategy. The brake control pressure strategy then limits pressure of the hydraulic fluid.
    • 发动机(10)具有液压系统(28),其用于燃料喷射器(22)和发动机制动器的液压致动器(40),发动机制动器通过在发动机制动期间控制排气流来制动发动机。 当制动控制压力策略不活动时,液压流体的压力由注射控制策略设定。 当制动控制压力策略激活时,当液压油被输送到执行器时发动机发生制动。 制动控制压力策略指示供给到一个或多个致动器的液压流体的压力超过由制动控制压力策略确定的压力。 制动控制压力策略然后限制液压油的压力。
    • 2. 发明授权
    • Engine speed-based modification of exhaust gas recirculation during fueling transients
    • 在加油过渡期间,基于发动机速度改变废气再循环
    • US06698409B1
    • 2004-03-02
    • US10314671
    • 2002-12-09
    • Michael P. KennedyMichael J. McNultyJames T. BeaucaireDavid V. Rodgers
    • Michael P. KennedyMichael J. McNultyJames T. BeaucaireDavid V. Rodgers
    • F02M2507
    • F02D41/10F02D41/005F02D41/12F02D41/1488F02D41/2422Y02T10/47
    • Engine speed data N and engine fueling data MFDES are processed by a strategy (22) that multiplies (28) fueling transient data MFDES TRANSIENT and speed-based modifier data EGR_N_TRANS_MULT to develop speed-based fueling transient data. The speed-based fueling transient data is then processed according to a function (32) that correlates values of a fueling transient modifier with values of speed-based fueling transient data to develop exhaust gas recirculation modifier data. The exhaust gas recirculation modifier data and basic exhaust gas recirculation data are multiplied (34) to develop modified exhaust gas recirculation data, and exhaust gas is recirculated in accordance with the modified exhaust gas recirculation data. Using engine speed as a determinant of the extent to which the basic EGR rate should be modified during a fueling transient enables better control over certain exhaust emissions over certain speed ranges.
    • 发动机速度数据N和发动机加油数据MFDES通过将(28)加油瞬态数据MFDES TRANSIENT和基于速度的修正数据EGR_N_TRANS_MULT相乘的策略(22)来处理,以开发基于速度的加油瞬态数据。 然后根据功能(32)对基于速度的燃料供给瞬态数据进行处理,该功能将加油过渡调节器的值与基于速度的燃料供给瞬态数据的值相关联,以开发废气再循环修正数据。 将废气再循环调节剂数据和碱性废气再循环数据相乘(34)以形成修正废气再循环数据,并根据改进的废气再循环数据再循环废气。 使用发动机转速作为在加油瞬态过程中应修改基本EGR率的程度的决定因素,能够在某些速度范围内更好地控制某些废气排放。
    • 8. 发明授权
    • Engine speed controller having PI gains set by engine speed and engine speed error
    • 发动机转速控制器具有发动机转速和发动机转速误差所设定的PI增益
    • US07536992B1
    • 2009-05-26
    • US12056864
    • 2008-03-27
    • Paul A. WieshuberJames T. BeaucaireMichael A. Majewski
    • Paul A. WieshuberJames T. BeaucaireMichael A. Majewski
    • F02D31/00F02D41/08F02D41/10F02M3/08
    • F02D31/007F02D41/2422F02D41/2451F02D2041/1409F02D2041/1422
    • A PI control strategy controls engine speed to an engine speed set-point. A proportional map (36) is populated with data values to be used in calculating the P component of the strategy. An integral map (38) is populated with data values to be used in calculating the I component. Each data value in the maps is correlated with a speed data value representing engine speed (N) and a speed error data value representing the difference between engine speed and engine speed set-point (N_DIF_MAX_LIM). Values for proportional and integral components are selected from the respective maps by processing current engine speed data and current engine speed error data. The strategy uses the values from the maps for controlling engine speed to the speed set-point. Data values from other maps (20 and 24; or 22 and 26) modify the selected values from the proportional and integral maps (36, 38) for transmission type, transmission gear, and engine temperature.
    • PI控制策略将发动机转速控制到发动机转速设定值。 比例图(36)填充有用于计算策略的P分量的数据值。 积分图(38)填充有用于计算I分量的数据值。 地图中的每个数据值与表示发动机转速(N)的速度数据值和表示发动机转速和发动机转速设定值(N_DIF_MAX_LIM)之间的差的速度误差数据值相关。 通过处理当前发动机转速数据和当前发动机转速误差数据,从各个图中选择比例积分分量的积分值。 该策略使用地图中的值来控制发动机转速到速度设定点。 来自其他地图(20和24;或22和26)的数据值从传动类型,传动齿轮和发动机温度的比例积分图(36,38)中修改所选值。
    • 9. 发明授权
    • Strategy for engine fueling during return to positive power flow after engine brake de-activation
    • 在发动机制动器不起动之后返回到正功率流的发动机加油策略
    • US07055496B1
    • 2006-06-06
    • US11220464
    • 2005-09-07
    • Michael A. MajewskiJames T. Beaucaire
    • Michael A. MajewskiJames T. Beaucaire
    • F02D1/00
    • F02D41/021F02D9/06F02D13/04F02D41/126F02D41/3836F02D2250/31
    • An internal combustion engine that propels a vehicle has a fuel injection system for injecting fuel into engine cylinders at desired injection control pressure. A control system controls activation and de-activation of a hydraulic actuator for an engine brake. A processor processes data to develop data for desired injection control pressure. Transitional injection control pressure data is used as desired injection control pressure during a transition time interval that commences with de-activation of the engine brake caused by the relief of pressure of the control fluid for allowing resumption of positive power flow from the engine for propelling the vehicle and that ends after the processor has determined the existence of a predetermined correlation between the transitional injection control pressure data and data indicating pressure of the control fluid.
    • 推进车辆的内燃机具有燃料喷射系统,用于以期望的喷射控制压力将燃料喷射到发动机气缸中。 控制系统控制用于发动机制动器的液压致动器的启动和停用。 处理器处理数据以开发用于期望的喷射控制压力的数据。 过渡喷射控制压力数据作为期望的喷射控制压力,在转换时间间隔期间被使用,该过渡时间间隔开始于由控制流体的压力减轻引起的发动机制动器的停用,以允许恢复来自发动机的正功率流以推进 车辆,并且在处理器确定过渡喷射控制压力数据和指示控制流体的压力的数据之间存在预定的相关性之后结束。
    • 10. 发明授权
    • Post-retard fuel limiting strategy for an engine
    • 发动机的后阻燃料限制策略
    • US06968828B2
    • 2005-11-29
    • US10920933
    • 2004-08-18
    • Michael A. MajewskiJames T. Beaucaire
    • Michael A. MajewskiJames T. Beaucaire
    • F02D41/12F02D41/38F02M51/00
    • F02D41/126F02D41/3836
    • An engine (10) having a control system (24) that executes a control strategy (44) for limiting engine fueling upon deactivation of an engine retarder. Upon deactivation of the retarder, the strategy immediately shuts off fueling by setting the maximum fueling limit MFLMX to zero via setting of a latch function (42). Fueling continues to be shut off so long as the difference between a desired pressure for the hydraulic fluid used to force fuel into the engine combustion chambers and actual pressure of the hydraulic fluid (ICP—ERR) equals or exceeds a value (ICP—VRE—ERR) from a map (48) correlated both with the speed (N) at which the engine is running and with governed engine fueling (MFGOV) appropriate for the load on the engine at the engine running speed. Once that difference ceases to equal or exceed a value from the map (48), the latch function is reset, and the limit value for fueling provided by the strategy increases withtime according to a map (54).
    • 一种具有控制系统(24)的发动机(10),所述控制系统(24)执行控制策略(44),用于在停用发动机延迟器时限制发动机加油。 在减速器停用时,通过设定闩锁功能(42)将最大加油极限MFLMX设定为零,立即切断加油。 加油继续关闭,只要用于迫使燃料进入发动机燃烧室的液压流体的期望压力和液压流体的实际压力(ICP - > / ERR)之间的差值等于或等于 来自地图(48)的值与发动机运行的速度(N)和控制的发动机加燃料(MFGOV)相关联的值(ICP, )适用于发动机运行速度下的发动机负载。 一旦该差值停止等于或超过地图(48)的值,则锁存功能被复位,并且根据地图(54)随着时间的推移而增加由该策略提供的加油的限制值。