Patent Document ID: 6039028
Application ID: 09231879
Patent Flag: 1

Claim One:
1. A system adapted to reduce rotational speed pulsations in an engine, said engine generating a rotational torque, said system comprising: (a) means for generating a first supplemental torque term, the value of said first supplemental torque term being a linear function of a present difference between a target engine rotational speed and an actual engine rotational speed; (b) means for generating a second supplemental torque term, the present value of said second supplemental torque term being a function of said second supplemental torque term calculated when said engine was at a previous rotational position and said first supplemental torque term calculated when said engine was at said previous rotational position; and (c) means for applying a supplemental torque to said engine in addition to said torque generated by said engine, said supplemental torque comprising a combination of said present value of said first supplemental torque term and said present value of said second supplemental torque term, said supplemental torque reducing rotational speed pulsations of said engine.