Dual Degree and MTech Project Proposals: 2006-2007
Listed below are four DD/MTech project topics. If you are interested
in any of the following, send me an email (shashisn@me.iitb.ac.in) to
request an appointment. Before you send an email to me, click here to
understand what you are getting into.
Harnessing the benefits of independent steering in front wheel
steered four wheel vehicles
Automobile steer-by-wire (SBW) technology refers to next generation
steering systems where mechanical complexity is replaced by
intelligent mechatronic solutions. Steer-by-wire technology is
characterized by the absence of mechanical linkages between the
handwheel and the roadwheels. Over the last couple of years, my group
has worked towards the development of a steer-by-wire vehicle that
supports independent steering of the front wheels.
This project is about investigating the benefits of using independent
steering action from the point of view of how the vehicle handles. The
project will involve: (a) understanding the dynamics of front
wheel-steered, four wheelers (b) identification of handling metrics
(c) design of control strategies that impact relevant handling metrics
(d) implementation and testing on a steer-by-wire Scorpio
Development of a hardware-in-the-loop system to facilitate
electric power steering design
Many cars today are fitted with power steering systems. Power steering
eases driver steering effort by providing torque assist. For smaller
cars, electric power steering systems have become popular because of
fuel-saving benefits they provide.
This project is aimed at building a hardware-in-the-loop system that
can emulate tire forces and thereby impose a load on the steering
column. Such a system would facilitate the design and testing of power
steering solutions.
Control of variable valve timing/lift engines
Petrol engines often use a throttle. The throttle regulates the mass
of air that flows into the combustion chamber and thereby help
regulate the torque built. However, the throttling process leads to
sub-atmospheric pressure to be developed downstream of the
throttle. This situation leads to pumping losses due to a differential
pressure developed across the two sides of the piston.
Pumping losses can, to a great extent, be reduced if open throttle
configurations can be used in conjunction with variable
timing/variable lift valve actuation systems. This project intends to
build upon preliminary work conducted in my group towards the
development of a camless engine that supports variable valve
timing/lift operation. The project will focus on control strategy
development for such an engine prototype. The project will involve (a)
understanding the behaviour of camless engines (b) working with
relevant sensing and actuation elements (c) design of control
algrorithms and their implementation. The student will work on an
established engine test bed.