公开(公告)号：US5803046A

公开(公告)日：1998-09-08

申请号：US741004

申请日：1996-10-31

申请人： William Joseph Bolander ,  Robert Leonard Morris

发明人： William Joseph Bolander ,  Robert Leonard Morris

IPC分类号： F02P5/14

CPC分类号： F02P5/14

摘要： Automotive internal combustion engine ignition timing control operations for varying timing of engine cylinder combustion chamber ignition events models the lead-lag combustion chamber temperature change profile under a transition from a first to a second engine operating condition and varies ignition timing following the transition in response to the temperature change profile. The lead-lag profile is implemented by applying a step change in ignition timing followed by a more gradual timing change, such as along a first order lag trajectory, toward a final ignition timing following the transition, and is updated in synchronism with engine cylinder events to account for a dependence on engine speed.

摘要翻译： 汽油内燃机点火正时控制操作，用于发动机气缸燃烧室点火事件变化时间的变化，在从第一个发动机运行状态到第二个发动机运行状态的过渡时，模拟出超前滞后燃烧室的温度变化曲线，并响应于 温度变化曲线。 超前滞后曲线通过在点火正时之后施加步进变化，随后沿着第一阶滞后轨迹进行更渐进的定时改变，朝向转变之后的最终点火正时进行，并且与发动机气缸事件同步地更新 以解释发动机转速的依赖。

公开(公告)号：US5720258A

公开(公告)日：1998-02-24

申请号：US766077

申请日：1996-12-16

申请人： Joseph Mark Tolkacz ,  William Joseph Bolander ,  Robert Charles Simon, Jr. ,  Gary Arthur Nichols

发明人： Joseph Mark Tolkacz ,  William Joseph Bolander ,  Robert Charles Simon, Jr. ,  Gary Arthur Nichols

IPC分类号： F02D41/14 ,  F02D41/18 ,  F02D41/24 ,  F02D41/34 ,  F02D41/16

CPC分类号： F02D41/009 ,  F02D41/1404 ,  F02D41/18 ,  F02D41/2464 ,  F02D41/2483 ,  F02D2041/1433 ,  F02D2200/0402 ,  F02D41/2441 ,  Y02T10/42

摘要： Control of engine speed responsive to a deviation in engine speed away from a target speed is applied selectively under closed-loop airflow control operating conditions, such as idle and coastdown operating conditions in response to analysis of a cause of an engine intake airflow deviation away from a modeled airflow. If airflow deviations are determined to have resulted from variation in internal engine friction away from a nominal friction level, the control is applied. If airflow deviations are determined to have resulted from change in internal engine airflow restriction, such as due to contaminant build-up over a period of engine use, then the control is not applied under closed-loop airflow control operating conditions to avoid overcompensating for such deviations.

摘要翻译： 选择性地在闭环气流控制操作条件下响应于发动机转速偏离目标速度的发动机速度的控制，例如怠速和下降操作条件，以响应于分析发动机进气气流偏离的原因 模拟气流。 如果确定气流偏差是由于内部发动机摩擦远离标称摩擦水平的变化而导致的，则应用该控制。 如果确定气流偏差是由内部发动机气流限制的变化引起的，例如由于在发动机使用期间的污染物累积，则在闭环气流控制操作条件下不应用控制，以避免过度补偿 偏差