User login

Novel Sliding Mode Control For Driving MEMS-based Resonators

Publication Type:

Web Article





Sliding Mode Control; Resonators; Reference Model; Stiffness Variation


AUTO21's Highly Qualified Person Elie Sarraf believes people could be riding more safely in vehicles if steps were taken to develop more refined safety features and early alert systems. Using an AUTO21 International Travel Assistance Program (ITAP) grant, Mr. Sarraf traveled to Athens, Greece to present his research at the 25th Eurosensors Conference in September. There he received several accolades for his work and valuable feedback from researchers around the world working on inertial microsensors.

Contributing to the AUTO21 project Inertial Sensor Cluster for Adaptive Path Prediction under the supervision of Dr. Edmond Cretu, Mr. Sarraf's main objective is to increase the sensitivity, resolution and overall performance of a vehicle's inertial sensor cluster (three degrees of freedom), without increasing the cost of fabrication. His proposed technique, Sliding Mode Control, attracted attention due to its high performance and low complexity.

The inertial sensor cluster adaption Mr. Sarraf presented offers direct and enabled applications. Direct applications are those where the three degrees of freedom sensor cluster is the core of the application. An adaptive road lighting system, for instance, could make use of the information provided by the inertial sensors and tune the position of the lights so they illuminate the road in the direction of travel, as predicted by the rotation of the car. This would benefit Canadians by enhancing the safety of the passenger, especially on dangerous mountainous roads with poor external lights.

Enabled applications are those where the inertial sensor needs to be complemented by extra systems to provide a full functionality. GPS-assisted navigation and imminent collision warning systems fall into this category. The combination of their three degrees of freedom sensor cluster with a GPS system strongly enhances the effectiveness of inertial navigation by providing a local reference frame during the “black-out” regions when satellite information is not reliable.

Both categories of application have a large potential for increasing the safety and comfort of the driving experience along with a positive perception from pedestrians as the risk of an accident can be highly diminished.

To receive more information or apply for AUTO21's ITAP grant, contact

Faculty Member(s): 
Research Area(s): 
Research Area(s): 
Sensors and Actuators