At the time of belt slippage of V belt type non-stage transmission on-board car it uses V belt

摘要

PROBLEM TO BE SOLVED: To provide power source output torque control for compensating the decrease of a drive force during the control of a belt slip.;SOLUTION: A computation part 51 obtains requested engine torque Te* from engine speed Ne and an accelerator pedal opening APO based on an engine performance map. A divider 52 obtains a division value (λ/i) by dividing a pulley rotational ratio λ by a belt winding radius ratio i. λ is kept at a target speed ratio by performing speed change control at the control of belt the slip, i is decreased by the belt slip. i is not decreased while a belt does not slip, the division value (λ/i) is 1 based on i=λ, and the division value (λ/i) becomes larger than 1 due to the decrease of i during the control of the belt slip. A multiplier 53 obtains the target engine torque tTe by multiplying the requested engine torque Te* by the division value (λ/i), and is subjected to the output control of the engine. Therefore, the engine torque is increased based on (λ/i)1 during the control of the belt slip, thus compensating the decrease of the drive force during the control of the belt slip.;COPYRIGHT: (C)2011,JPO&INPIT