september2022 - 28
DIAGNOSTIC TECH
Figure 3- Mazda Smart City Brake LiDAR sensor in operation
Figure 4- Mazda short range LiDAR sensor
GHz). Radar sensor that resides behind body panels are tuned
specifically for that environment, so any changes to the body,
repair, paint, etc. could negatively affect its operation. Consult
service information for more information.
Additionally, these sensors are very delicate and most have
a statement on the body stating they should be discarded if
dropped. If you find yourself addressing one of these sensors
that has been in a collision where the sensor and/or surrounding
area suffered an impact equaling the shock from
a drop, then a new sensor should be installed and properly
initialized and calibrated.
LIDAR - LIGHT DETECTION AND RANGING
LiDAR works like radar, as it's using ToF of the near infrared
light beams scattered out in front of the sensor. Since infrared
is outside of the human's visible spectrum, it's hard to
visualize what is happening in these wavelengths. Figure 3
shows a blended image I was able to acquire using special
filters and camera techniques.
Essentially, the systems are attempting to produce a spatial
3-D point cloud to establish where any hazards may exist.
Although wide use of lidar is currently not the norm, there
are several vehicle manufacturers who have adopted some
form of LiDAR on their vehicle. One popular sensor can
be found on Mazdas, Toyotas, and Volvos (Figures 4 and
5). (I recently published a video detailing a live view of two
different LiDAR sensors utilizing the Oculus which can be
found here: https://youtu.be/K7NRdwpqaAI)
LIMITATIONS - ODD AND OEDR
Today's systems have numerous limitations, and as these
systems evolve, their capabilities will improve. Service professionals
should always refer to both the vehicle owner's
manual and service information before evaluating any complaints
about system operation. The limitations may mirror
the system complaint, which one would then need to review
with the consumer. Just because one vehicle can respond to
a road condition doesn't mean all vehicles have the same
capabilities.
Figure 5- Mazda short range LiDAR sensor; Smart City Brake support
DIAGNOSTICS AND CALIBRATION
Many of the skills one needs for electrical and/or engine
performance will serve well when addressing ADAS complaints
and/or service requirements. If one wishes to gain a
high level of competencies, then they should pursue training.
Depending on the carline, you may have all the tools needed
to address most diagnostic and service requirements.
Some vehicle manufacturers require special tooling
such as static targets. Entering this market trying to become
28 Professional Distributor I September 2022 I VehicleServicePros.com
https://www.youtube.com/watch?v=K7NRdwpqaAI
http://www.VehicleServicePros.com
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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