Chapter 8 Dynamics of Vehicles Sectionl Traveling Principle 3.The Driving and Adhesion Conditions of Vehicle Traveling 3.1 Driving Conditions The first condition of the vehicle traveling: ,≥Fr+Fw+F 3.2 Adhesion Conditions The second condition of the vehicle traveling E≤F。=Fop --Coefficien t of adhesion F--Weight beard by driving wheels; The driving and adhesion conditions of the vehicle traveling (necessary and sufficient conditions) F+Fn+F≤F≤Fo·p Automobile and Tractor Northwest A&F UniversityAutomobile and Tractor Northwest A&F University Chapter 8 Dynamics of Vehicles 3 . The Driving and Adhesion Conditions of Vehicle Traveling 3.1 Driving Conditions The first condition of the vehicle traveling: 3.2 Adhesion Conditions The second condition of the vehicle traveling: The driving and adhesion conditions of the vehicle traveling: (necessary and sufficient conditions) —— ； —— ； Weight beard by driving wheels Coefficien t of adhesion      z t z F F  F = F • Ft  Ff + Fw + Fi Ff + Fw + Fi  Ft  Fz • Section1 Traveling Principle