Engine powertrain control device and method for a vehicle

Details Engine powertrain control device and method for a vehicle Engine powertrain control device and method for a vehicle

1996-10-01

1999-12-07

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

701 55, 477109, 477110, F16H 5900

Patent

active

059998733

ABSTRACT:
An engine powertrain control device is configured to reduce data amounts of characteristics of a torque converter and realize torque estimation with high accuracy. A device detects or computes rotating speeds of input and output shafts of the torque converter. A device computes a ratio (speed ratio) between the rotating speed of the input shaft and the rotating speed of the output shaft of the torque converter. A device stores data of a pump capacity coefficient and torque ratio product of the torque converter and computes a value of the product corresponding to a value of the speed ratio computed above, and a device is provided for computing an output shaft torque of the torque converter by using the value of the computed product.

REFERENCES:
patent: 5613920 (1997-03-01), Ono et al.

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