Peterbilt 365 2017, Manual

Page: 183 / 228

OPERATING THE BRAKE SYSTEM
Advanced ABS with Stability
Control
This vehicle may be equipped
with an optional Electronic Stability
Control (ESC). ESC is a feature for
ABS-equipped vehicles that reduces
the risk of rollovers, jackknifing and
other loss of control situations. ESC
features include Roll Stability Program
(RSP) and Yaw Control.
During operation, the ECU of the
Bendix® Advanced ABS system
constantly compares performance
models to the vehicle’s actual
movement, using the wheel speed
sensors of the ABS system, as well
as lateral, yaw, and steering angle
sensors. If the vehicle shows a
tendency to leave an appropriate travel
path, or if critical threshold values are
approached, the system will intervene
to assist the driver.
Roll Stability Program
Bendix® RSP, an element of the
overall ESC system, addresses
rollover conditions. In the case of
a potential roll event, the ECU will
override the throttle and quickly apply
brake pressure at all wheel ends to
slow the vehicle combination. The
level of braking application during an
RSP event will be proportional to roll
risk.
A Real World Example of How the
RSP System Operates
Excessive speed for road conditions
creates forces that exceed the
threshold at which a vehicle is likely to
rollover on a higher-friction surface.
The system automatically reduces
engine torque and applies the service
brakes (based on the projected rollover
risk) to reduce the vehicle speed,
thereby reducing the tendency to roll
over.
RSP Example
(03/17) Y53-6076-1B1
4-25
4
https://www.besttruckmanuals.com/