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21.
公开(公告)号:US5584277A
公开(公告)日:1996-12-17
申请号:US534070
申请日:1995-09-26
CPC分类号: F02D41/34 , F02D41/047 , F02D41/107 , F02D2200/0402 , F02D2200/0406 , F02D2200/0408 , F02D2200/0411 , F02D2200/0414 , Y02T10/44
摘要: The fuel delivery control system monitors engine speed and load parameters to develop a wall wetting history that is indicative of the physical state of the fuel within the intake port or intake manifold. The wall wetting history is used along with engine speed, temperature and pressure measurements to determine the pulse width of the fuel injector signal. Fuel to air ratio is thereby optimized. Transient conditions due to changes in engine load or due to acceleration and deceleration are used to generate a pulse width correction signal to optimize performance on a cycle by cycle basis. Each engine cylinder injector may be independently controlled.
摘要翻译: 燃料输送控制系统监测发动机速度和负载参数以开发指示进气口或进气歧管内的燃料的物理状态的壁润湿历史。 使用墙体润湿历史以及发动机转速,温度和压力测量来确定燃油喷射器信号的脉冲宽度。 从而优化燃料与空气的比例。 由于发动机负载变化或由于加速和减速引起的瞬态条件用于产生脉冲宽度校正信号,以逐周期优化性能。 每个发动机气缸喷射器可以独立控制。
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公开(公告)号:US5517964A
公开(公告)日:1996-05-21
申请号:US238098
申请日:1994-05-04
CPC分类号: F02D37/02 , F02D31/005 , F02P5/1508 , Y02T10/46
摘要: A method of controlling idle speed of an internal combustion engine in an automotive vehicle is provided. The method includes the steps of calculating an acceleration error of the engine and determining whether the calculated acceleration error is greater than a predetermined deadband. The method also includes the steps of opening or closing an Automatic Idle Speed (AIS) stepper motor if the acceleration error is greater than the predetermined deadband and increasing or decreasing a spark advance if the acceleration error is not greater than the predetermined deadband.
摘要翻译: 提供一种控制机动车辆内燃机的怠速的方法。 该方法包括计算发动机的加速度误差并确定所计算的加速度误差是否大于预定死区的步骤。 该方法还包括如果加速度误差大于预定死区并打开或关闭自动空转速度(AIS)步进电机并且如果加速度误差不大于预定死区,则增加或减少火花提前的步骤。
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