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11. 发明授权

US06209518B1 Method and apparatus for fail safe control of an electronically controlled throttle valve of an internal combustion engine 有权
标题翻译：内燃机电控节流阀的故障安全控制方法和装置
公开(公告)号：US06209518B1
公开(公告)日：2001-04-03
申请号：US09366205
申请日：1999-08-04
申请人： Kenichi Machida , Masahiro Iriyama , Mikio Nozaki
发明人： Kenichi Machida , Masahiro Iriyama , Mikio Nozaki
IPC分类号： F02D1110
CPC分类号： F02D11/107 , F02D2041/227
摘要： In a method and apparatus for fail-safe controlling an electronically-controlled throttle-type internal combustion engine, provision is made of two accelerator position sensors and two throttle position sensors. When either one of the two accelerator position sensors or either one of the two throttle position sensors fails to operate, a low-speed fail-safe operation of a minimum compensation, that is, an operation for maintaining a minimum output required for limp-home control operation of the engine, is executed and, then, a first fail-safe control operation is executed for controlling the position of the throttle valve using a value detected by the remaining sensor. Therefore, the throttle valve is not unintentionally opened, and the operation can be smoothly shifted to the first fail-safe control operation. When the operation for decelerating the engine is detected by a sensor of a system separate from the above-mentioned sensors, the first fail-safe control operation is interrupted and, instead, a second fail-safe control operation is executed for holding the throttle valve at a predetermined position in order to assure the low-speed fail-safe operation of the minimum compensation.
摘要翻译：在用于故障安全控制电控节气门式内燃机的方法和装置中，提供两个加速器位置传感器和两个节气门位置传感器。当两个加速器位置传感器中的任一个或两个节气门位置传感器中的任何一个不能操作时，最低补偿的低速故障安全操作，即用于维持跛行所需的最小输出的操作执行发动机的控制操作，然后执行第一故障保护控制操作，以使用由剩余传感器检测的值来控制节气门的位置。因此，节气门不会被无意地打开，并且可以将操作顺利地转移到第一故障保护控制操作。当通过与上述传感器分离的系统的传感器检测到用于减速发动机的操作时，第一故障保护控制操作被中断，而是执行第二故障保护控制操作以保持节气门在预定位置，以便确保最小补偿的低速故障安全操作。

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