september2022 - 26
DIAGNOSTIC TECH
Putting the
'A' in ADAS
A Rav4 case study highlights some of the
challenges with repairing these advanced systems.
By Scott Brown, PTEN Technical Editor
Figure 1 - Onboard DAS puts a high priority on vulnerable road users.
D
AS, driver assistance systems, have been a part
of the automobile going back many years with
the introduction of such systems as ABS (antilock
braking system), TC (traction/stability control), TPMS (tire
pressure monitoring system), etc. Looking back, these systems
had an impact on service because of the required
product knowledge and oftentimes the adoption of new
tooling to competently service such vehicles. Today, the
common acronym we see is ADAS, which added the term
" advanced " based upon the new features that either augmented
the current DAS, or introduced brand new vehicle
capabilities.
Many of these systems support active safety and go a long
way towards preventing collisions and/or reduce the injuries
received from a vehicular accident. In this article, you'll learn
about these systems, service challenges, and opportunities.
CAMERA SYSTEMS
Cameras found on today's vehicles naturally provide visual
support not only for the vehicle operator but may support
26 Professional Distributor I September 2022 I VehicleServicePros.com
operations such as lane keeping, collision avoidance, and
more. When you start to think about how these cameras
work within these systems, you need to drop the assumption
the camera sees exactly what humans see. Machine vision
science is extremely sophisticated, and there's a lot more than
just photon detection going on behind the scenes. For many
vehicle systems, it's likely that the camera system is providing
parallel layers of vision support simultaneously.
For example, a camera may be tasked with performing
lane monitoring operations where a special filter is applied
to the signal for processing lane markings and measurements
as they relate to the vehicle they're mounted on. At the same
time, there may be another service running that performs
object detection and classification, and there may be a posedetection
program running tasked with estimating/predicting
human movement around the vehicle. Humans on foot and
on bicycles are considered vulnerable road users (VRUs) and
are a high priority within the onboard DAS (Figure 1).
Cameras mounted high and center behind the windshield
are mostly used for lane keeping and object detection/
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september2022
Table of Contents for the Digital Edition of september2022
Editor's Note: Is safety top of mind for you?
Sneak Peek
Most Wanted
In Focus
Cover Story: A safe bet
Diagnostic Tech: Putting the 'A' in ADAS
Show Me Your Truck: A new truck without the shine
Go Sell Something: Be the Best
Driving Sales: Diagnostic Test Equipment
Tales From the Road: All in the family
september2022 - 1
september2022 - 2
september2022 - 3
september2022 - Editor's Note: Is safety top of mind for you?
september2022 - 5
september2022 - Sneak Peek
september2022 - 7
september2022 - 8
september2022 - 9
september2022 - 10
september2022 - 11
september2022 - 12
september2022 - 13
september2022 - Most Wanted
september2022 - 15
september2022 - In Focus
september2022 - 17
september2022 - 18
september2022 - 19
september2022 - Cover Story: A safe bet
september2022 - 21
september2022 - 22
september2022 - 23
september2022 - 24
september2022 - 25
september2022 - Diagnostic Tech: Putting the 'A' in ADAS
september2022 - 27
september2022 - 28
september2022 - 29
september2022 - 30
september2022 - 31
september2022 - Show Me Your Truck: A new truck without the shine
september2022 - 33
september2022 - Go Sell Something: Be the Best
september2022 - 35
september2022 - Driving Sales: Diagnostic Test Equipment
september2022 - 37
september2022 - 38
september2022 - 39
september2022 - 40
september2022 - 41
september2022 - Tales From the Road: All in the family
september2022 - 43
september2022 - 44
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