Evolve 2005: Parking Aid
Are you one of those that break out in cold sweat every time it’s time for pocket parking? Can you
really get the vehicle into that pocket; is it long enough, wide enough? Imagine that your new car
can tell you that the pocket is big enough and then park the car in it. For most people this may
sound like a dream come true. Good news is, this might be a feature in new cars within a few years.
System layout
US Sensors
Environment
Mapping
Human Machine
Interface
Parking Aid
Manager
Steering Servo
Parking Aid
Parking Path
Finder
Brake Control
Unit
The parking procedure
The goal of the student project is to deliver a parking aid
system that efficiently and safely park cars. Scenarios such
as parking along lanes, parallel parking, and outside
shopping malls is considered. In order to test and evaluate
ideas and theories the project has modified Volvo S60 test
vehicle. The emphasis have been to design a system that
park the vehicle efficiently without neglecting the aspect of
safety.
Solution
Fig. 1
Fig. 2
Along the side of the vehicle several ultrasonic sensors have
been placed in order to read the surroundings of the vehicle.
The reading from these sensors together with the position of
the vehicle, measured by the wheel encoders used in the
ABS system, give the system an idea about the nearby
environment. (Fig. 1) The data generated processed through
the Hough transform in order to find straight lines (car
sides, pavement, etc) which cross-sections represents the
corners of the nearby cars. (Fig. 2) From these corners a
path into the pocket is calculated. (Fig. 3) Along this path
the vehicle is controlled back into the pocket. (Fig. 4)
Factors such as unexpected obstacles is considered in order
to enhance the safety of the system.
Students
Fig. 3
Fig. 4
Daniel
Johan
Johan
Axelsson
Wiklund
Åkesson
Erik
Anna
Fagerman
Salmons