Method of testing motor torque integrity in a hybrid...

Details Method of testing motor torque integrity in a hybrid... Method of testing motor torque integrity in a hybrid...

2004-05-14

2008-05-06

Ip, Paul (Department: 2837)

Electricity: motive power systems

Motor load, armature current or force control during...

C318S431000, C318S432000, C318S434000, C318S139000

Reexamination Certificate

active

07368886

ABSTRACT:
A method of testing an electric motor that is adapted to provide a desired electric motor output torque to a vehicle powertrain system comprising an engine and the electric motor which are operatively and selectively coupled to a transmission. The method includes the steps of determining an initial motor speed of the electric motor, determining a motor torque command as a function of the initial motor speed, applying the motor torque command to the electric motor to produce an output torque from the electric motor, measuring a resultant motor speed of the electric motor and establishing a motor status as a function of the resultant motor speed. The method may be implemented as a computer control and diagnostic algorithm.

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