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11. 发明授权

US6012289A Apparatus and method for utilizing a learned wastegate control signal for controlling turbocharger operation 失效
标题翻译：用于利用学习的废气门控制信号来控制涡轮增压器操作的装置和方法
公开(公告)号：US6012289A
公开(公告)日：2000-01-11
申请号：US974327
申请日：1997-11-19
申请人： Mitchel R. Deckard , David L. Frohberg , Phillip J. Houtz , Charles J. Kocian , Kevin A. Lantz , James B. Maddock , Gregg W. Uhland
发明人： Mitchel R. Deckard , David L. Frohberg , Phillip J. Houtz , Charles J. Kocian , Kevin A. Lantz , James B. Maddock , Gregg W. Uhland
IPC分类号： F02B37/12 , F02B37/18 , F02B39/16 , F02D23/00 , F02D41/00 , F02D45/00
CPC分类号： F02D41/0007 , F02B37/18 , Y02T10/144
摘要： A method for controlling an engine turbocharger having a wastegate control valve is provided where the turbocharger is controlled by an electronic controller which is capable of delivering a wastegate control signal to the wastegate control valve. A determination is made as to whether an engine speed falls within a predetermined speed range defined by a first predetermined speed and a second predetermined speed, where the second predetermined speed is higher than the first predetermined speed. A predetermined initializing wastegate control signal may be delivered to the wastegate control valve in response to the engine speed falling within the predetermined speed range. A determination is made as to whether an engine speed exceeds the second predetermined speed, and a determination is made as to whether an engine load falls within a predetermined load range defined by a first predetermined load and a second predetermined load, where the second predetermined load is greater than the first predetermined load. A stored control signal value is retrieved from memory associated with the electronic controller and a wastegate control signal corresponding thereto is delivered to the wastegate control valve in response to the engine speed exceeding the second predetermined speed and the engine load falling within the predetermined load range. The stored control signal value may be updated with a learned control signal value determined during certain engine operating conditions.
摘要翻译：提供了一种用于控制具有废气门控制阀的发动机涡轮增压器的方法，其中涡轮增压器由能够将废气门控制信号传送到废气门控制阀的电子控制器控制。确定发动机速度是否落在由第二预定速度高于第一预定速度的第一预定速度和第二预定速度限定的预定速度范围内。响应于发动机转速落在预定速度范围内，可以将预定的初始化废气门控制信号输送到废气门控制阀。确定发动机转速是否超过第二预定速度，并且确定发动机负荷是否落在由第一预定负荷和第二预定负荷所限定的预定负载范围内，其中第二预定负荷大于第一预定负载。从与电子控制器相关联的存储器检索存储的控制信号值，并且响应于超过第二预定速度的发动机速度和落在预定负载范围内的发动机负荷，将与之对应的废气门控制信号传送到废气门控制阀。存储的控制信号值可以用在某些发动机运行条件下确定的学习控制信号值来更新。

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