THEPRA-LAB: PCB Lab System

THEPRA-LAB: PCB lab system
Car actuator technology - diagnosis basics
On the output side of an electronic control
or regulation system, the assessment results
of the microprocessor can be measured
as actuator control voltages.
In state-of-the-art vehicle systems, onboard-diagnosis
is a standard. Workshop
practice, however, shows that output interferences
recognised by the control unit
are only formulated in very vague detail in
the error storage. The reason for this is the
fact that a control unit cannot actually
recognise whether the driving stage in the
control unit, the connection lines to the
actuator or the actuator as such are defective.
The present lab system with its diverse
practice-related actuators of intact and
defective systems provides real measured
values. Type, structure and alignment of
the components facilitate transfer competence
from pure theory to the locally installed
vehicle components. The student documents
contain not only instructions but
also physical basic information on the
actuator and control current branch.
Special importance is placed on handling
the oscilloscope and assessment of the
diagnosis images .
Educational targets
��In vehicle-related circuit examples, they
will learn about performance and indicativeness
of actuator diagnosis.
��In vehicle-related switching examples,
they will develop the actuator-typical
voltage values of the intact and defective
control current branches.
��They use multimeters and oscilloscopes
for actual value recording. They interpret
the oscilloscope charts.
��They will learn how to "read" oscilloscope
charts by documenting the indication
of the oscilloscope and the set time and
voltage parameters in prepared or free
axes of coordinates and interpreting
them.
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��They will practice how to proceed in
measurement if they want to verify
whether the control unit end stage, actuator
lines or the actuator itself are defective.
The task and exercises refer to the
few measuring points that are accessible
in a state-of-the-art vehicle filled
with electrical components.
��They improve their skills at recognising
incorrect values and error causes in self
-generated and provided actual value
logs .
Electrics and Electronics
PCB 4
Car actuator technology - diagnosis
basics
Order No. 12 020 013
For best equipment, we also recommend:
12 050 011 DC lab mains adaptor
12 020 020 Wire harness 2 mm plug
12 020 021 Wire harness wit insulatedalligator
clips
16 062 012 Universal multimeter
16 162 020 Oscilloscope 25 MHz
16 162 015 Oscilloscope 20 MHz with
True RMS Multimeter
Fig.: 12 020 021 Wire harness
with insulated alligator clips
Modifications reserved!
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TECHNOLAB SA, Rotherdweg 16, CH-5022 Rombach/Switzerland - Tel +41 62 827 11 11 - info@technolab.org - www.technolab.org
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