Patent ID: 9682626
Date: 2017-06-20
CPC Classifications: B60L,F02D,Y02T

Claim:
1. A system for monitoring torque supplied by a prime mover of a motor vehicle, or an electric or hybrid vehicle, comprising: circuitry configured to determine a driver's torque request, estimate torque produced by a propulsion unit, filter the driver's torque request, determine consistency between the torque request and torque produced considering quasi-static variation phases of the request by receiving, as an input, signals carrying the estimate of the torque produced by the propulsion unit, the driver's torque request and the filtered driver's torque request, and detecting torque anomalies by constructing a torque specification and determining occurrence of a torque anomaly as a function of the torque estimate, the torque request, and the torque specification, and determine the quasi-static variation phases of the request by determining a Boolean value indicating a quasi-static variation phase and a mean value of error percentage between the torque request and the estimate of the torque produced, measured over a period of set duration extending before a start of a quasi-static variation phase of the driver's torque request, as a function of comparison of the filtered driver's torque request with a set threshold.