Environmental Engineering Reference
In-Depth Information
Figure 2.30 Autonomy with in-hub M/G
plane on which the corner mass of the vehicle sits. The wheel torque develops a
longitudinal component of tractive effort at the wheel plane that is in board of the
steering axis. This off-axis steering moment due to tractive effort tends to re-align
the wheel so that the axis of applied wheel torque and the king pin axis align.
2.4.1 Post-transmission hybrid
There has been work on electric M/Gs connected to the vehicle propeller shaft
ahead of the final drive, but these programmes were discontinued in the case of
electric propulsion due to the high demands on machine power density, speed range
and physical size. Figure 2.31 illustrates the concept of a post-transmission hybrid
in which an electric machine is interfaced to the driveline via a gear reduction.
E-steer
M/G
FD
ICE
XM
3
Battery
pack
Figure 2.31 Post-transmission hybrid architecture
