Drive shaft torque controlling apparatus for use in a vehicle ha

Details Drive shaft torque controlling apparatus for use in a vehicle ha Drive shaft torque controlling apparatus for use in a vehicle ha

1996-11-20

1999-08-17

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

701 53, 701 51, 477 30, 477 78, 477125, G06G 770

Patent

active

059387122

ABSTRACT:
At a torque converter characteristic assuming unit, during non gear shift, gear ratio and an input shaft torque are assumed and also during gear shift, accessory torque is assumed. So as to correct the accessory torque a deviation between pump torque and engine torque is learned and this value is given to the accessory torque, thereby the input shaft torque can be executed and assumed. A drive shaft torque is obtained from a drive shaft torque calculating unit, a control period of the drive shaft torque is determined, a reference drive shaft torque is determined during torque control period from a reference drive shaft torque setting unit. A deviation between the reference drive shaft torque and the drive shaft torque is obtained from a torque deviation executing unit. An engine controlling unit varies the engine torque by controlling an ignition period so as to decrease substantially zero the deviation.

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