| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve or moderate disadvantageous events along with remarkable rise of a pressure inside a passageway from a compressor to a throttle valve, in a low or intermediate load region where a throttle opening degree is relatively small. <P>SOLUTION: A supercharging pressure control system is configured to include an opening degree sensor 14 for detecting an opening degree of a throttle valve 13, a pressure sensor 16 for detecting an intake pipe pressure at downstream of the throttle valve 13, and an electronic control device 12 for suppressing a target supercharging pressure at downstream of the throttle valve 13 to less than actual intake pipe pressure detected by the pressure sensor 16, if an throttle opening degree detected by the opening degree sensor 14 is equal to or less than a predetermined value. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
