MANAGING LEAN AIR/FUEL TRANSIENTS IN COORDINATED TORQUE CONTROL
    1.
    发明申请
    MANAGING LEAN AIR/FUEL TRANSIENTS IN COORDINATED TORQUE CONTROL 失效
    在协调扭矩控制中管理航空/燃油过渡

    公开(公告)号:US20090283070A1

    公开(公告)日:2009-11-19

    申请号:US12437193

    申请日:2009-05-07

    IPC分类号: F02P5/15 F02P5/00

    摘要: An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal.

    摘要翻译: 发动机控制系统包括空气控制模块,火花控制模块,转矩控制模块,瞬态检测模块和发射扭矩模块。 空气控制模块基于指令的预测转矩来控制发动机的节气门。 火花控制模块基于指令的立即扭矩控制发动机的火花提前。 当催化剂熄灭(CLO)模式有效时,转矩控制模块增加指令预测转矩,并且当驾驶员启动加速器输入时增加指令的立即转矩。 当CLO模式有效时,当检测到每缸增加的空气时,瞬态检测模块产生稀薄瞬态信号。 发射扭矩模块基于稀薄瞬态信号产生扭矩偏移信号。 转矩控制模块基于转矩偏移信号增加指令的立即转矩。

    Managing lean air/fuel transients in coordinated torque control
    2.
    发明授权
    Managing lean air/fuel transients in coordinated torque control 失效
    在协调扭矩控制中管理贫气/燃料瞬态

    公开(公告)号:US07748362B2

    公开(公告)日:2010-07-06

    申请号:US12437193

    申请日:2009-05-07

    IPC分类号: F02P5/15

    摘要: An engine control system includes an air control module, a spark control module, a torque control module, a transient detection module, and a launch torque module. The air control module controls a throttle valve of an engine based on a commanded predicted torque. The spark control module controls spark advance of the engine based on a commanded immediate torque. The torque control module increases the commanded predicted torque when a catalyst light-off (CLO) mode is active, and increases the commanded immediate torque when a driver actuates an accelerator input. The transient detection module generates a lean transient signal when an air per cylinder increase is detected while the CLO mode is active. The launch torque module generates a torque offset signal based on the lean transient signal. The torque control module increases the commanded immediate torque based on the torque offset signal.

    摘要翻译: 发动机控制系统包括空气控制模块,火花控制模块,转矩控制模块,瞬态检测模块和发射扭矩模块。 空气控制模块基于指令的预测转矩来控制发动机的节气门。 火花控制模块基于指令的立即扭矩控制发动机的火花提前。 当催化剂熄灭(CLO)模式有效时,转矩控制模块增加指令预测转矩,并且当驾驶员启动加速器输入时增加指令的立即转矩。 当CLO模式有效时,当检测到每缸增加的空气时,瞬态检测模块产生稀薄瞬态信号。 发射扭矩模块基于稀薄瞬态信号产生扭矩偏移信号。 转矩控制模块基于转矩偏移信号增加指令的立即转矩。

    EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS FOR LOW ENGINE DELTA PRESSURE CONDITIONS
    6.
    发明申请
    EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS FOR LOW ENGINE DELTA PRESSURE CONDITIONS 审中-公开
    用于低发动机压力条件的排气回送控制系统和方法

    公开(公告)号:US20130268176A1

    公开(公告)日:2013-10-10

    申请号:US13440570

    申请日:2012-04-05

    IPC分类号: F02D28/00 F02D41/26

    摘要: A partial pressure determination module: determines a first partial pressure of oxygen in an intake manifold of an engine based on an output of a first oxygen sensor measuring oxygen in the intake manifold; and determines a second partial pressure of oxygen in an exhaust system based on an output of a second oxygen sensor measuring oxygen in the exhaust system. A concentration determination module: determines a concentration of oxygen in the intake manifold based on the first partial pressure and an intake manifold; and determines a concentration of oxygen in the exhaust system based on the second partial pressure. A flowrate determination module determines a mass flowrate of exhaust gas recirculation (EGR) based on the concentration of oxygen in the intake manifold and the concentration of oxygen in the exhaust system. An actuator control module controls an engine operating parameter based on the mass flowrate of EGR.

    摘要翻译: 分压确定模块:基于测量进气歧管中的氧的第一氧传感器的输出,确定发动机的进气歧管中的氧的第一分压; 并且基于排气系统中测量氧的第二氧传感器的输出,确定排气系统中的第二氧分压。 浓度确定模块:基于第一分压和进气歧管确定进气歧管中的氧浓度; 并且基于第二分压确定排气系统中的氧浓度。 流量确定模块基于进气歧管中的氧气浓度和排气系统中的氧气浓度来确定废气再循环(EGR)的质量流量。 执行器控制模块基于EGR的质量流量控制发动机工作参数。