october2022 - 34
DIAGNOSTIC TECH
Electronic controls:
Lateral and longitudinal
Electronic controls have displaced many of the
mechanical systems we once saw on vehicles years ago.
by Scott Brown, PTEN Technical Editor
Figure 1 - ADAS vehicle in operation, path planning to avoid a VRU
E
lectronic controls have displaced many of the mechanical
systems we once saw on vehicles years ago.
Electronic throttle and steering are popular these days,
but we're now seeing vehicles with systems such as electromechanical
brake boosters, electric power steering executing
lane changes, avoiding vulnerable road users (VRU), and
more. This article will discuss service operations diagnostics
surrounding these systems.
ADAS
Advanced driver assistance systems (ADAS) have been populating
the vehicle beginning as far back as 2010, supporting SAE's
J3016 Level 0 vehicles which, for the most part, only offered
visual and/or audible warnings to the vehicle operator when
an unsafe condition was detected. Moving into higher levels
(1 and 2) requires additional support via advanced electronic
control systems supported by critical communication channels
34 Professional Distributor I October 2022 I VehicleServicePros.com
as shown in Figure 1. Technicians looking to stay ahead of the
curve know that continuing education is an absolute must to
stay service ready. Professional service providers possessing a
deeper understanding on these systems will typically result
in " less-friction " for the service technician during diagnostics
and service.
THROTTLE ACTUATOR CONTROL (TAC)
For more than two decades, electronic throttle bodies have
been populating the vehicle market, and I suspect that your
customers have seen more than a few with intermittent DTCs
related to the throttle actuator. The device usually consists of a
DC motor and two throttle position sensors that typically, but
not always, output somewhat opposing signals, which are used
to validate proper system operation. The DBW system took on a
lot of heavy risk assessment study and had to pass through the
Automotive Safety Integrity Level (ASIL) steps before standards
http://www.VehicleServicePros.com
october2022
Table of Contents for the Digital Edition of october2022
Editor's Note: Meet the New Guy
Sneak Peek
Most Wanted
Ins and outs of leak detection tools
2022 PTEN People's Choice Award Winners
In Focus
Diagnostic Tech: Electronic Controls: Lateral and longitudinal
Show Me Your Truck: From running grocery stores to a tool truck
Go Sell Something: Becoming an industry expert
Driving Sales
Tales from the Road: Satisfying his customers
october2022 - 1
october2022 - 2
october2022 - 3
october2022 - Editor's Note: Meet the New Guy
october2022 - 5
october2022 - Sneak Peek
october2022 - 7
october2022 - 8
october2022 - 9
october2022 - Most Wanted
october2022 - 11
october2022 - Ins and outs of leak detection tools
october2022 - 13
october2022 - 14
october2022 - 15
october2022 - 16
october2022 - 17
october2022 - 18
october2022 - 19
october2022 - 2022 PTEN People's Choice Award Winners
october2022 - 21
october2022 - 22
october2022 - 23
october2022 - 24
october2022 - 25
october2022 - 26
october2022 - 27
october2022 - 28
october2022 - 29
october2022 - In Focus
october2022 - 31
october2022 - 32
october2022 - 33
october2022 - Diagnostic Tech: Electronic Controls: Lateral and longitudinal
october2022 - 35
october2022 - 36
october2022 - 37
october2022 - 38
october2022 - 39
october2022 - Show Me Your Truck: From running grocery stores to a tool truck
october2022 - 41
october2022 - Go Sell Something: Becoming an industry expert
october2022 - 43
october2022 - Driving Sales
october2022 - 45
october2022 - 46
october2022 - 47
october2022 - 48
october2022 - Tales from the Road: Satisfying his customers
october2022 - 50
october2022 - 51
october2022 - 52
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