BENDIX BW2843 プリント
electronics
BENDIX
®
ESP
®
ELECTRONIC STABILITY PROGRAM
The Bendix
®
ESP
®
full stability system helps you make an intelligent investment
in stability. For more information contact your Prevost Regional Sales Manager
or talk to your Bendix Account Manager, call 1-800-AIR-BRAKE (1-800-247-2725)
or visit www.bendix.com today.
or talk to your Bendix Account Manager, call 1-800-AIR-BRAKE (1-800-247-2725)
or visit www.bendix.com today.
Bendix Commercial Vehicle Systems LLC • 901 Cleveland Street • Elyria, Ohio 44035 • 1-800-AIR-BRAKE • www.bendix.com
BW2843 ©2010 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 12/10 • All Rights Reserved
BW2843 ©2010 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 12/10 • All Rights Reserved
ESP
®
is a registered trademark of Daimler AG and is used by Bendix CVS under license.
Driving Scenario:
The vehicle speed around a curve exceeds the ability for the tires to
hold the vehicle orientation, causing the vehicle to slide and begin to
over-steer. The momentum of the load further pushes the coach,
exacerbating the situation.
hold the vehicle orientation, causing the vehicle to slide and begin to
over-steer. The momentum of the load further pushes the coach,
exacerbating the situation.
System Response:
The Bendix
®
ESP
®
stability system senses the driver’s intended path and
compares it to the actual situation to identify an over-steer situation. In an
attempt to correct the vehicle orientation and reduce speed if required, the
system quickly applies braking pressure to only the appropriate wheels.
attempt to correct the vehicle orientation and reduce speed if required, the
system quickly applies braking pressure to only the appropriate wheels.
The Importance Of Full Stability... Bendix
®
ESP
®
For Motor Coaches
Rollovers and loss-of-control situations happen in the blink of an eye. That's why a full stability system makes sense for motor coach applications.
Stability for motor coaches needs to:
Stability for motor coaches needs to:
1) Detect potential instability situations quickly and completely;
2) Intervene quickly and accurately;
3) Apply ample braking where needed; and
4) Perform on wet, snow and ice covered surfaces.
2) Intervene quickly and accurately;
3) Apply ample braking where needed; and
4) Perform on wet, snow and ice covered surfaces.
The table below identifies the key features and components of the Bendix
®
ESP
®
full stability system:
Bendix
®
ESP
®
Sensor T
echnology
Bendix
®
ESP
®
Performance
Enhancement
Driving Scenario:
A vehicle enters a curve too fast, on high friction pavement, resulting
in high lateral (side) forces acting at the vehicles center of gravity (CG).
The high friction between the wheels and the pavement create a
“hinge” effect allowing the forces at the CG to push the vehicle over.
in high lateral (side) forces acting at the vehicles center of gravity (CG).
The high friction between the wheels and the pavement create a
“hinge” effect allowing the forces at the CG to push the vehicle over.
System Response:
The Bendix
®
ESP
®
stability system applies pressure to all coach brakes and
reduces engine throttle to quickly reduce vehicle speed and therefore
mitigate the tendency of the vehicle to roll over.
mitigate the tendency of the vehicle to roll over.
Feature
What it does
Why it matters
Bendix
®
ESP
®
Wheel Speed Sensors
Monitors the wheel rotation at individual Allows the system to determine vehicle speed
wheels
and monitor wheel lock-up to optimize braking
Lateral Acceleration Sensor
Senses the side or lateral forces acting
Side or lateral forces are used to detect
on the vehicle
a roll situation
Steering Angle Sensor
Senses the driver’s steering
An early indicator of a potential critical maneuver.
and direction
Helps the system to respond faster
and more accurately
Brake Pressure Sensors
Measures the driver’s braking demand
Allows the system to accurately supplement
the driver throughout the maneuver
Yaw Rate Sensor
Senses the rotation of the vehicle
Allows the system to monitor the true
orientation of the vehicle and compare it to the
driver’s intention
Multi-level Sensing
Cross checks multiple system sensors
Improves the reaction time and accuracy of the
intervention
Tuning
Different vehicles have different stability
Improves the ability of the stability system to
characteristics. Tuning adapts the stability match the intervention of the situation
system to account for these differences
All Axle Braking
The ability to apply brakes at all axles
Provides the best opportunity to reduce vehicle
speed in the shortest time
Individual Corner Braking
The ability to apply individual brakes
Provides the capability to control under- and
over-steer situations