Section 6
Page 19
Service Training
RP01 / Chapter 1
115 804 2401.1000
6.1.5.7 ELECTRICAL BRAKING - SELECTING OPPOSITE DIRECTION OF TRAVEL.
This process is similar to releasing the accelerator pedal with two differences:-
· When the truck is nearly to a stop the top MOSFET is turned on and the truck drives in the reverse
direction. This method of slowing by regeneration and driving away by armature chopping ensures a
seamless transition between braking and drive.
· The level of electric braking when the reverse pedal is selected can be controlled by accelerator pedal
depression. Its maximum level is set in window 72 (Ibrk) of the LDC diagnostics.