| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a turbosupercharger in which an opening area of an actual waste gate conforms with that of a target waste gate even if subjected to an influence of the friction and geometry of actuator component parts. <P>SOLUTION: The control device is equipped with a turbine (6) provided in an exhaust-air passage, a compressor (7) provided in an intake-air passage, a poppet-type waste gate (12) which opens and closes a passage which bypasses the turbine (6), an actuator (13) capable of variably controlling a degree of opening and closing the waste gate in response to control pressure supplied to a pressure chamber, a link mechanism which enlarges or contracts a rod stroke of the actuator to a stroke of the waste gate (12), three-side solenoid valves (20A, 20B) capable of regulating the control pressure supplied to the pressure chamber. A parameter for controlling the three-side solenoid valves is an operating force of the actuator (13). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
