Introduction; Lvd System; Ebs; Air Suspension - Volvo FM Handbook

Introduction

1

LVD system

The vehicle is equipped with software that registers
different types of information about the vehicle. The
information will be transferred to Volvo Trucks AB
and used in product development and fault tracing in
engines and vehicles. Information that is saved
concerns, among other things, speed, fuel consumption
and torque. Volvo Trucks AB and its authorised
workshops will make use of this information.
Questions concerning the use of this information can
be made to Volvo Action Service..

EBS

EBS generation 3 functions in a different way to
earlier braking systems. In previous braking systems a
particular pressure to the pedal gave a particular
pressure to the braking system. With EBS 3 a
particular pressure on the pedal will give a particular
reduction of speed. The same depression of the pedal
gives the same reduction of speed, but the pressure to
the brake cylinders on the axles varies with the axle
load.
After changing loads, the first brake application can
feel strange, since the system must learn the new axle
loads.
EBS adapts the braking pressure to the trailer so that
the trailer brakes to the same degree as the truck.

Air suspension

This truck has full air suspension and thus has bellows
instead of leaf springs. The amount of air in the
bellows can be regulated, and determines the ride
height.
The air suspension is electronically controlled
(ECS, electronically controlled suspension) and
maintains constant ride height irrespective of load