Development of an Anti-Pinch System for Passenger Vehicles
Typ
Examensarbete för masterexamen
Program
Product development (MPPDE), MSc
Publicerad
2020
Författare
Bohlin, Marcus
Nagpal, Gunjan
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Products are becoming increasingly complex and so is every vehicle on the road. Passenger car
manufacturers are adding more customer-oriented comfort features at every price segment in
order to differentiate themselves from the competition. A lot of these features make use of
automating the movement of various parts such as sunroof panels, seats and tailgates.
Automation through motorized components needs to be accompanied by systems that can act
as safeguards to prevent human injury due to this automation process. This thesis aims to lay
the groundwork thereby equipping Volvo Cars with the knowledge to develop a consolidated
anti-pinch system that could potentially be used in several different automotive components.
Different approaches for detecting pinch situations across industries and environments were
evaluated. Two principally different approaches were chosen for further development, the first
using hall sensors and the second leveraging ripple counting. A fundamental requirement for
the developed concepts was conforming with legal regulations, namely the US regulation
FMVSS No. 118 and the UN regulation ECE-R21-01. Taking an approach of early prototyping
and testing, the concepts were continuously being tested along with their development.
After going through prototyping and testing, three different recommendations were made for
Volvo Cars based on different timescales. A concept that meets legal testing requirements was
suggested for implementation in 1-2 years, whereas other concepts that would require more
developmental effort were suggested for timescales of 3-4 years and 7+ years. With an inhouse
system at their disposal, Volvo will have greater control over the functionality and safety
of their anti-pinch systems, while also enabling cost savings.
Beskrivning
Ämne/nyckelord
Automotive, Mechatronics, Passenger Safety, Anti-Pinch System, Hall Sensors, , Sensorless Motor Control, Product Development