公开(公告)号：US6435149B2

公开(公告)日：2002-08-20

申请号：US96356101

申请日：2001-09-27

申请人： TOYOTA MOTOR CO LTD

发明人： MORIYA YOSHIHITO ,  NAGAOSA HIDEO ,  NAKANO SHUUJI ,  KIKUOKA SHINICHIRO

IPC分类号： F01L1/34 ,  F01L13/00 ,  F02D13/02

CPC分类号： F02D13/0207 ,  F01L1/34 ,  F01L13/0042 ,  F01L2800/00 ,  F01L2800/11 ,  F02D13/0211 ,  F02D13/0219 ,  F02D13/0226 ,  F02D13/0246 ,  F02D13/0261 ,  F02D13/0265 ,  Y02T10/18

摘要： A valve train for an internal combustion engine has a variable valve performance mechanism for changing the valve open angle of at least one set of intake valves and exhaust valves. The valve train further includes an electronic control unit (ECU) for controlling the variable valve performance mechanism and a sensor for detecting the running state of the engine. The ECU judges whether there is a malfunction in the engine based on detection signals from the sensor. If there is a malfunction in the engine, the ECU actuates the variable valve performance mechanism to decrease the valve overlap thereby performing a failsafe. The ECU also advances the closing timing of the intake valves. Alternatively, the ECU retards the opening timing of the exhaust valves.

摘要翻译： 用于内燃机的气门机构具有用于改变至少一组进气门和排气门的阀开度的可变阀性能机构。 气门机构还包括用于控制可变阀性能机构的电子控制单元（ECU）和用于检测发动机的运行状态的传感器。 ECU根据来自传感器的检测信号判断发动机是否发生故障。 如果发动机发生故障，则ECU启动可变阀性能机构以减小阀重叠，从而执行故障保护。 ECU还提前进气阀的关闭时机。 或者，ECU延迟排气门的打开正时。