BELT-CLAMPING FORCE CONTROL DEVICE FOR V-BELT TYPE CONTINUOUSLY VARIABLY TRANSMISSION

摘要

High-friction-coefficient road reference inertia torque (Tin_FH), represented by a centre-left block in fig. 6, is deducted from primary pulley input torque (Tp), represented by the block on the far left in fig. 6, to obtain high-friction-coefficient road reference belt transmission torque (Tbelt_FH), represented by a centre-right block in fig. 6. Low-friction-coefficient road reference inertia torque (Tin_FL), represented by another centre-left block in fig. 6, is deducted from the primary pulley input torque (Tp) to obtain low-friction-coefficient road reference belt transmission torque (Tbelt_FL), represented by another centre-right block in fig. 6. The highest absolute value (i.e. Tbelt_FH) from among the high-friction-coefficient road reference belt transmission torque (Tbelt_FH) and the low-friction-coefficient road reference belt transmission torque (Tbelt_FL) represented by the centre-right blocks in fig. 6 is selected, and set as final belt transmission torque represented by the block on the far right in fig. 6, thereby contributing to belt-clamping force control.