B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
B60K 23/00 (2006.01) B60K 23/04 (2006.01) F16H 61/00 (2006.01)
Patent
CA 2362076
In a vehicle in which a torque generated in an engine is transmitted to driven wheels through a torque converter and an automatic transmission, when a speed ratio e in the torque converter is equal to or larger than a predetermined value (e.g., 0.85), and the accuracy of estimating a capacity .tau. of the torque converter is low, an estimated engine torque Ti is multiplied by a torque ratio k of the torque converter to estimate a drive torque Td. When the speed ratio e in the torque converter is smaller than the predetermined value, and a response lag is produced in the transmission of the engine torque, a drive torque Td is estimated from an engine rotational sped Ne and the speed ratio e in the torque converter. During shifting of the automatic transmission, a drive torque Td is estimated from a wheel speed V. Thus, a correct drive torque can be estimated.
Asada Ryuji
Hori Masakatsu
Iwazaki Akihiro
Okuma Shinji
Tomari Tatsuhiro
Honda Giken Kogyo Kabushiki Kaisha .)
Smart & Biggar
LandOfFree
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