| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle weight presuming device capable of presuming the weight of a vehicle simply. SOLUTION: The weight presuming device of a vehicle equipped with an automatic transmission to transmit the output of a mounted engine E through a friction engagement element (hydraulic clutch) for gear shifting is configured so that an input torque Tin fed to the automatic transmission is calculated (S500), a change amountΔNC presumed value of the output revolving speed of the automatic transmission is calculated (S502), and the weight of the vehicle is presumed from the input torques before and after shifting and the change amount of the output revolving speed (S504-S516). Concretely, it is assumed so that the running resistance acting on the vehicle does not change during shifting, and the weight of the vehicle is presumed from the input torques Tin1, Tin2 before and after shifting and the change amountΔNC presumed value of the output revolving speed or more concretelyΔNC1 andΔNC2 (S504-S516). COPYRIGHT: (C)2011,JPO&INPIT
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