Patent ID: 11920531
Assignee: BORGWARNER LUXEMBOURG OPERATIONS SARL
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 8:
9. A processor configured to execute stored instructions to perform operations including:
estimating a value for an actual engine torque;
comparing the estimated value with a further calculated (expected) torque value;
controlling an engine consequent to said comparing, the value for the actual engine torque being determined from the following steps:
a) from a crankshaft signal, providing a plot or signal indicative of instantaneous crankshaft speed;
b) differentiating said plot or signal indicative of instantaneous crankshaft speed with respect to time to determine acceleration values;
c) within a crankshaft/time interval, determining a maximum and a minimum acceleration value from step b); and
d) determining the difference between said maximum and minimum acceleration values;, e) determining a torque value dependent on said difference from step d).