Autonomous Vehicle Engineering - May 2021 - 27
ADAS
Electrification of Commercial Vehicle Steering Systems - Servotwin
External control interface
Torque overlay control
Driver comfort functions
Safety functions
Electric output torque for
loss of hydraulic assist
mitigation
Smart Driver Steering Assist
Electric portion
Conventional Hydraulic Steering
Hydraulic portion
The Servotwin setup facilitates easy overlay of driver-assistance and other features onto conventional power-steering layouts.
The Bosch accident research, " Safety + Enhanced
Driver Comfort: Steering in Commercial Vehicle ADAS
Systems, " finds that lateral actuator systems in Class 7
and 8 trucks can reduce the costs of accidents by up
to $0.04 per mile, or $3,700 annually per heavy truck.
" Increasing levels of automation and driver
assistance help to reduce accidents and make drivers'
lives easier, " said Kevin O'Keefe, regional president
of Automotive Steering for Bosch in North America.
" The Bosch accident research findings illustrate how
features like Lane Change Assist and Lane Keeping
Support can contribute positively in multiple ways
- reducing property damage, injuries and fatalities. "
Calculating Field of Effect
The Bosch accident research reviewed public crash
data to identify correlating statistics between
vehicle types and the severity of crashes. This data
was utilized to calculate a Field of Effect (FoE) for
accidents involving large trucks. To calculate FoE,
crashes were examined that could have been mitigated or avoided by using lateral actuator systems
- more specifically, LCA and LKS.
Based on the accident research, the data shows
injuries from Class 7 and Class 8 truck crashes could
be reduced by up to 23% and fatalities by up to 19%
when they are the accident-triggering vehicle. LCA
and LKS systems also could reduce the property
damage from Class 7 and Class 8 trucks by up to 35%.
AUTONOMOUS VEHICLE ENGINEERING
Bosch
Bosch
Hydraulic gear for normal
power steering operation
Customer specific
attachment points
The Bosch Servotwin electrohydraulic steering system for heavy
commercial vehicles offers
speed-dependent steering support and consumes less fuel than
purely hydraulic steering.
The introduction of Level 2 steering systems
in North America in 2020 aims to make roadways
safer. Safety features such as hydraulic failure detection and added steering assist can support the
driver during hydraulic failure or drastic events
like tire blowouts. Systems that provide active
May 2021 27
Autonomous Vehicle Engineering - May 2021
Table of Contents for the Digital Edition of Autonomous Vehicle Engineering - May 2021
Autonomous Vehicle Engineering - May 2021 - CVR4
Autonomous Vehicle Engineering - May 2021 - CVR1
Autonomous Vehicle Engineering - May 2021 - CVR2
Autonomous Vehicle Engineering - May 2021 - 1
Autonomous Vehicle Engineering - May 2021 - 2
Autonomous Vehicle Engineering - May 2021 - 3
Autonomous Vehicle Engineering - May 2021 - 4
Autonomous Vehicle Engineering - May 2021 - 5
Autonomous Vehicle Engineering - May 2021 - 6
Autonomous Vehicle Engineering - May 2021 - 7
Autonomous Vehicle Engineering - May 2021 - 8
Autonomous Vehicle Engineering - May 2021 - 9
Autonomous Vehicle Engineering - May 2021 - 10
Autonomous Vehicle Engineering - May 2021 - 11
Autonomous Vehicle Engineering - May 2021 - 12
Autonomous Vehicle Engineering - May 2021 - 13
Autonomous Vehicle Engineering - May 2021 - 14
Autonomous Vehicle Engineering - May 2021 - 15
Autonomous Vehicle Engineering - May 2021 - 16
Autonomous Vehicle Engineering - May 2021 - 17
Autonomous Vehicle Engineering - May 2021 - 18
Autonomous Vehicle Engineering - May 2021 - 19
Autonomous Vehicle Engineering - May 2021 - 20
Autonomous Vehicle Engineering - May 2021 - 21
Autonomous Vehicle Engineering - May 2021 - 22
Autonomous Vehicle Engineering - May 2021 - 23
Autonomous Vehicle Engineering - May 2021 - 24
Autonomous Vehicle Engineering - May 2021 - 25
Autonomous Vehicle Engineering - May 2021 - 26
Autonomous Vehicle Engineering - May 2021 - 27
Autonomous Vehicle Engineering - May 2021 - 28
Autonomous Vehicle Engineering - May 2021 - 29
Autonomous Vehicle Engineering - May 2021 - 30
Autonomous Vehicle Engineering - May 2021 - 31
Autonomous Vehicle Engineering - May 2021 - 32
Autonomous Vehicle Engineering - May 2021 - 33
Autonomous Vehicle Engineering - May 2021 - CVR4
https://www.nxtbook.com/smg/sae/24AE04
https://www.nxtbook.com/smg/sae/24AE03
https://www.nxtbook.com/smg/sae/24AE02
https://www.nxtbook.com/smg/sae/23AE12
https://www.nxtbook.com/smg/sae/23AAVE11
https://www.nxtbook.com/smg/sae/23AE10
https://www.nxtbook.com/smg/sae/23AE09
https://www.nxtbook.com/smg/sae/23AE08
https://www.nxtbook.com/smg/sae/23AAVE07
https://www.nxtbook.com/smg/sae/23AE06
https://www.nxtbook.com/smg/sae/23AE05
https://www.nxtbook.com/smg/sae/23AAVE04
https://www.nxtbook.com/smg/sae/23AE04
https://www.nxtbook.com/smg/sae/23AE03
https://www.nxtbook.com/smg/sae/23AE02
https://www.nxtbook.com/smg/sae/23AAVE01
https://www.nxtbook.com/smg/sae/22AE12
https://www.nxtbook.com/smg/sae/22AVE11
https://www.nxtbook.com/smg/sae/22AE10
https://www.nxtbook.com/smg/sae/22AE09
https://www.nxtbook.com/smg/sae/22AE08
https://www.nxtbook.com/smg/sae/22AVE07
https://www.nxtbook.com/smg/sae/22AE06
https://www.nxtbook.com/smg/sae/22AE05
https://www.nxtbook.com/smg/sae/22AVE04
https://www.nxtbook.com/smg/sae/22AE04
https://www.nxtbook.com/smg/sae/22AE03
https://www.nxtbook.com/smg/sae/22AE02
https://www.nxtbook.com/smg/sae/22AVE01
https://www.nxtbook.com/smg/sae/21AE12
https://www.nxtbook.com/smg/sae/21AVE11
https://www.nxtbook.com/smg/sae/21AE10
https://www.nxtbook.com/smg/sae/21AVE09
https://www.nxtbook.com/smg/sae/21AE09
https://www.nxtbook.com/smg/sae/21AE08
https://www.nxtbook.com/smg/sae/21AVE07
https://www.nxtbook.com/smg/sae/21AE06
https://www.nxtbook.com/smg/sae/21AE05
https://www.nxtbook.com/smg/sae/21AVE05
https://www.nxtbook.com/smg/sae/21AE04
https://www.nxtbook.com/smg/sae/21AE03
https://www.nxtbook.com/smg/sae/21AVE03
https://www.nxtbook.com/smg/sae/21AE02
https://www.nxtbookmedia.com