The state of practice in developing embedded infrastructure software uses component-based architectures such as the AUTOSAR initiative (www.autosar.org), along with static code analysis tools to capture design flaws. However, these still... more
The state of practice in developing embedded infrastructure software uses component-based architectures such as the AUTOSAR initiative (www.autosar.org), along with static code analysis tools to capture design flaws. However, these still fail to address the dynamic and real-time aspect of the infrastructure software. Fortunately, current advances in MBD technology indicate that embedded-software developers can expect more tool support for the whole ECU software spectrum. We report in this article an overview on the X-in-the-loop V&V process and draw some lessons learned from related industrial experience.
Low speed estimation in DTC IMD is not accurate due to the presence of transient offset, drift and domination of ohmic voltage drop in the measured stator voltages and currents used for estimating the stator flux required for accurate... more
Low speed estimation in DTC IMD is not accurate due to the presence of transient offset, drift and domination of ohmic voltage drop in the measured stator voltages and currents used for estimating the stator flux required for accurate estimation of speed. EKF is a nonlinear, recursive adaptive algorithm capable of estimating speed ranging from very low speed to rated speed using equation of motion from noisy measured currents and voltages based on state space technique. In the previous work a new state space model of IM was developed for estimation in EKF by feeding load torque profile as an input variable instead of estimating it by considering load torque as constant, validated using MATLAB-Simulink software. In this paper real time validation of the EKF controller with load profile fed as input for speed estimation in DTC IMD is carried out using OPAL-RT simulator and real time results validates the simulation results and proves the effectives of the new EKF for low speed estimation in DTC IMD.
Officially admitted by the Office of then Philippine Supreme Court Chief Justice Reynato Puno (summit convener) for use during the National Consultative Summit on Extrajudicial Killings and Enforced Disappearances - Searching for... more
Officially admitted by the Office of then Philippine Supreme Court Chief Justice Reynato Puno (summit convener) for use during the National Consultative Summit on Extrajudicial Killings and Enforced Disappearances - Searching for Solutions, Manila, Philippines, 16-17 July 2007.
