Simplifying Electricity
description
Transcript of Simplifying Electricity
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Simplifying Electricity
About Locktronics automotive
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What is Locktronics?
Locktronics is a range of products that simplifies the
process of learning and
teaching electricity and Electronics
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Subject areas we focus on
Science
Electronics / Engineering
Technology
Automotive
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The range consists of more than 200 items
Baseboards
Resistors
Capacitors
Inductors
Semiconductors
Logic gates
System blocks
Electromechanical
Curriculum packs
Active subsystems
Optoelectronic
Accessories
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How does Locktronics work?
Review curriculum Take a base board Follow instructions
on worksheets Add components Learn through
experimentation
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Unique benefit of Locktronics
As students construct the circuit they can see the circuit diagram. This helps students link theory to practice and
simplifies the learning process.
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Why choose Locktronics?
Makes learning easier Saves preparation time It lasts and Lasts Versatility Support
Spring clips riveted on for strength
Components identifiable under
carrier
Strong soldered joints
Simple repairs can be made in-house
Component value easily identifiableCircuit symbol
bonded onto carrier
Most up to date circuit symbols now
available
Custom made metal clips can be bent
many times.
Durable, robust plastic carriers are
long lasting and cost effective
Rust proof springs ensure good connection
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Curriculum packs – most are free of charge
LK7325 - Electricity matters 11-14 LK7326 - Electricity matters 14-16 LK9392 - Introduction to digital electronics LK8392 - AC principles for automotive
technicians LK8821 – An introduction to motors and
generators LK8849 - Automotive sense and control LK9893 - CAN bus systems
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Purchasing Locktronics
Buy just one item, or a selection of items
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Purchasing Locktronics
Buy a ‘solution’ that includes PSU, current probe, storage trays etc.
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Automotive – our goals
To build the World’s best suite of training resources for auto electric courses
To provide outstanding value for money and flexible purchasing options
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Automotive companies that use Locktronics for training
Some companies use direct in their own training establishments – some through third party training companies contracted to them.
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Automotive plan
1 basic kit with two curriculum packs
EMM1 and 23 intermediate kits
AC principles Motors and generators Digital electronics
2 advanced kits: Sense and Control CAN bus Logical thinking at
some time in the future
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Automotive – beginner’s courseElectricity,
magnetism and materials
Electrical properties of materials
Simple circuits Heat and magnetism Basic circuit symbols Current flow Series and parallel circuits Patterns of voltage and
current Electrical sensors Relays and electromagnets
Same equipment – two sets of experiments
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Automotive – intermediate coursesAC principles for
automotive technician’s
Batteries and their properties AC signal fundamentals DC equivalent, peak and RMS
values Reactance, Inductance and
supression Diode and Zener diode
behaviour Half and full wave rectifiers Battery charging systems
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Automotive – intermediate coursesAn introduction to
motors and generators
Magnetic fields, field strength and flux density
Electromagnets The force on a conductor in a magnetic
field (Fleming’s Left-hand motor rule) DC motor principles The induced current when a conductor
moves inside a magnetic field (Fleming’s Right-hand dynamo rule)
investigate the factors that determine the magnitude of the induced current;
AC generator principles Transformer construction and operation
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Automotive – intermediate courses
An introduction to digital electronics
Analogue and digital signals Binary and hexadecimal number
systems A simple logic probe Truth tables for AND, OR, NOT,
NAND, NOR NAND gates and circuits Microcontroller circuits and logic
systems
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Automotive – advanced
Sensors and Control DC motors with speed control Stepper motors Temperature sensor Light sensor Potential dividers and their use Transistors as switches Use of relays ECU action and function Automotive control systems Sensor and actuator waveforms and
signals Sensor and motor faults
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Automotive – advanced
CAN bus ECU action and function Automotive control systems Wiring in CAN bus systems CAN bus message structure CAN bus transactions in a
system CAN bus faults CAN bus instrumentation used
for fault detection and fault reset
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Automotive panel
For permanent auto-electrical labs
Double baseboard MIAC embedded Panel based CAN bus + Sense
and control solutions available
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Automotive in more detail
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Methodology in automotive - starting
Students are advised to study Electricity, Magnetism and Materials before going on to advanced courses.
Students understand symbols, circuits, wiring, and theory
Students must get involved in wiring circuits
Students progress through ‘traditional’ subjects such as AC etc.
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Methodology in automotive – sense and control
Students understand: systems and ECUs Circuitry inside an
ECU ECU wiring How software
makes open and closed loop systems
Circuit configurations
Students work in pairs
Students build circuits with 5 or 6 wires
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Methodology in automotive – CAN bus
Students: Wire up each
node Test each node Students work in
pairs or groups of 4
Each circuit contains up to 14 wires
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Methodology in automotive – CAN bus
Students wire up the whole system and use the admin /scan node to discover how the system works. This looks very difficult
But students build it slowly and gain confidence in wiring
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Key learning points about the CAN bus program
Sensor ID D0
Side lights (A1) switch on 100 1
Side lights (A1) switch off 100 0
Full beam (A2) on 101 1
Full beam (A2) off 101 0
Left (A3) on 102 1
Left (A3) off 102 0
Right (A4) 103 1
Right (A4) on 103 0
Horn (A5) on 104 1
Horn (A5) off 104 0
Wiper (A6) on 105 1
Wiper (A6) off 105 0
Reverse (B1) on 106 1
Reverse (B1) off 106 0
Brake (B2) on 107 1
Brake (B2) off 107 0
Message structure and message transaction
Students build up tables on all CAN data
Students use diagnostic tools (Kvaser / Pico) for this
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Other details
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Locktronics PIC component
USB programmable 4 I/O lines
Inputs are analogue or digital 2 outputs have PWM for speed
control 3 slide switch inputs – program
selection or own use Rugged Supplied from 6V or USB Free copy of Flowcode 3
(some limitations) Pre-programmed with 8
selectable programs
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Flowcode 3
Also a Matrix product A graphical
programming language for microcontrollers
Simple drag and drop interface
Simulation of flow chart and components
Direct USB download No upgrade rights to Flowcode V4
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MIAC
A general purpose controller
The World’s only educational ECU
Designed to give experience of many types of input/output signals and devices
Free version of Flowcode 3
Direct USB programming
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MIAC features
102
4
17
5 6 7 89
1
12
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14
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16
3 11
1. Top hat rail mounting recess2. 6 character x 4 line LCD display3. Power LED4. Input status LEDs5. 2.1mm power jack6. Screw terminal inputs7. Top hat rail retainer clip - upper8. Reset / run switch9. USB socket10. USB transfer LED11. Control keys12. M3 mounting holes13. Motor status LEDs 14. Motor output screw terminals15. Top hat rail retainer clip - lower16. Relay output screw terminals17. Relay output status LEDs
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MIAC – educational version
Rugged case Protected I/O 4mm shrouded
connectors Free Flowcode 3