| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide the control technology of a hybrid vehicle capable of securing a booster negative pressure in the negative pressure chamber of a brake booster during motor traveling selectively using only a motor as a power plant. <P>SOLUTION: A hybrid vehicle 1 is provided with: an internal combustion engine 5 and a motor 50 as a power plant; a first clutch 21 allowing an engine output shaft 8 to engage with a first input shaft 27 of a first gear changing mechanism 30; a second clutch 22 allowing the engine output shaft 8 to engage with a second input shaft 28 of a second gear changing mechanism 40; and a brake booster for storing a negative pressure generated by the internal combustion engine 5 in a negative pressure chamber, and for increasing the operation force of a brake pedal by using the booster negative pressure stored in the negative pressure chamber. When it is decided that the booster negative pressure has decreased to a decision value or less during motor traveling selectively using the motor 50, an ECU 100 rotates an engine output shaft 8 of the internal combustion engine 5 by putting at least one of the first and second clutches 21 and 22 in an engaged state or a semi-engaged state. <P>COPYRIGHT: (C)2009,JPO&INPIT |
