1. Engine Dynamics
A sample of power and torque performances for a spark ignition engine

2. If we use to indicate the angular velocity, measured in [ rad/ s], at
which the engine power reaches the maximum value PM , measured in [W =
Nm/ s], then for spark ignition engines we use

4. For exampel

6. Driveline component

9. Gearbox and Clutch Dynamics

11. exampel

13. Assume the torque-speed equation of a car is similar to Equation
that is a second degree of speed having the gear ratio n = ni as a parameter.

16. Gearbox stability condition.

18. For exampel

19. Cg=?

23. Gearbox Design

25. To determine the middle gear ratios
there are two recommended methods:

26. Geometric Ratio Gearbox Design
When the jump of engine speed in any two successive gears is constant at a vehicle speed
Step jump
The range (ω1, ω2) is called the engine’s
working range.

28. Speed span

29. Progressive Ratio Gearbox Design

32. EXAMPEL