Torque management algorithm for hybrid electric vehicles

Details Torque management algorithm for hybrid electric vehicles Torque management algorithm for hybrid electric vehicles

2007-11-13

2007-11-13

Tran, Dalena (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Electric vehicle

C180S065100

Reexamination Certificate

active

10836799

ABSTRACT:
A system and method for determining a commanded engine and motor torque to minimize fuel consumption and manage battery state of charge in a hybrid electric vehicle. The method includes determining a penalty factor value that dictates the usage of the battery. A cost value is determined for every feasible engine torque for a selected or demanded vehicle torque and speed request. Each cost value is determined by a fuel consumption value, a change in the battery state of charge and the penalty factor value. The change in the battery state of charge is determined from the motor power and a nominal battery state of charge. For a specific penalty factor, a look-up table for optimal engine torque is generated for different requested vehicle torques at various vehicle speeds. A separate look-up table is provided for each penalty factor.

REFERENCES:
patent: 5936312 (1999-08-01), Koide et al.
patent: 6356817 (2002-03-01), Abe
patent: 6449537 (2002-09-01), Phillips et al.
patent: 6480767 (2002-11-01), Yamaguchi et al.
patent: 6561296 (2003-05-01), Obayashi
patent: 6741917 (2004-05-01), Tomikawa
patent: 6827167 (2004-12-01), Cikanek et al.
International Search Report for PCT/US05/09623 dated May 24, 2007 corresponding to this application.

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