| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle-start creep-down prevention control apparatus capable of limiting discomfort caused to a driver.SOLUTION: During a start operation (initially, a motor torque instruction value TTMA=TTMA0) in which an accelerator opening degree APO (a target motor torque basic value TTMA0) is increased as shown in Figure after an instantaneous time t1 in the state of D range stop in the midst of charging limitation, if a vehicle speed VSP≤-0.5 km/h continues for 0.1 sec (i.e., creep-down is determined), creep-down prevention control is started (flag_RSAON=1). That is, while the TTMA is decreased at a constant change rate &bgr;1 to be reduced to zero (0) at t3, while a vehicle-start creep-down preventing-braking torque instruction value TTBRK (a brake hydraulic pressure instruction value TPMC) is increased at a constant change rate α1 so as to become the same torque value as TTMA0 so as to prevent a creep-down using a frictional braking instead of a regenerative braking. |
