Subject 'Basics of Motor Vehicle Design'

Year:   2014/2015    2015/2016    2016/2017    2017/2018    2018/2019    

1. Forces and moments applied to vehicle, oversteer, understeer, turn distribution by speed and direction, turn division.
2. Suspension types, their advantages, disadvantages. Suspension kinematics, instant center, roll center, camber gain in roll and heave, bump steer, pitch center, anti-dive, anti-squat, anti-lift, KPI, caster, scrub radius, caster trail. Laboratory work about measuring and analyzing random vehicle suspension.
3. Suspension dynamic parameters, like springs and antiroll bars stiffness, shocks damping ratio influence to weight transfer and handling. Creation of weight transfer calculation module. Laboratory work about estimating vehicle handling with stock suspension setup and modified setup - relation with calculations. This laboratory will be held in both winter and summer conditions.
4. Tire characteristics, slip angle, slip ratio, lateral, longitudinal, vertical forces, coefficient of friction, camber, toe, cornering stiffness. Graphical interpretation of tire characteristics. Suspension and steering parameters relation to tire characteristics.
5. Vehicle power characteristics. Laboratory about tuning and measuring vehicle in a chassis dyno. Top speed calculation, gear ratio selection, power and torque with different gears. Analyze of vehicle acceleration with Lapsim
6. Brake systems and their components, brake disk materials. Laboratory work about creating brake parameters calculation module. Selection of brake components due to calculations for a selected vehicle

Give an overview of vehicle dynamics and design basics and skills for analysing vehicle characteristics or creating a vehicle.

1. Knows basic of vehicle dynamics, forces and moments applied to vehicle 2. Has knowledge about different type of suspensions, knows how suspension kinematics and dynamics work. 3. Can select suspension type and characteristics (springs and antiroll bars stiffness, shock damping ratios, motion ratios) for a given vehicle 4. Knows tire characteristics, its relation to temperature, slip angle, vertical- and lateral forces 5. Can find vehicle top speed due to aerodynamic parameters, find gear and final drive ratios due to top speed and engine characteristics 6. Knows different brake systems and brake disk materials. Can find a brake system and its parameters (master- and slave cylinder diameters, motion ratios, forces, linepressures) for a given vehicle 7. Knows basics about handling, turn division and different parameters influence to vehicle handling.

The course has 16 hours of lectures and 24 hours of laboratory work. Every topic has a lecture, which is followed by laboratory class and dynamical testing, where students can experience different parameters influence to vehicle handling and correlation between theory and practice

1. Milliken, F. William; Milliken, L. Douglas
"Race Car Vehicle Dynamics". SAE International 1995
2. J. Reimpell, H Stoll, JW Betzler "The Automotive Chassis"
3. M. Olley "Chassis Design"
4."Auto teknilinen taskukirja" Bosch 1984

2015: FOR  

2014: AT  

2013: AT  

2012: AT  

2011: AT  

2010: AT  

2009: AT  

2008: AT*  

2007: AT*  

2006: AT*  

2005: AT*  

2004: AT*  

* Optional subject