Electric system in an automobile

1
Electric system in an automobile
2
Automotive Electronics

• They are any electrically-generated systems used
  in road vehicles.
• Automotive electronics originated from the need
  to control Engines.
• The first electronic pieces were used to control
  engine functions and were referred to as engine
  control units (ECU).
• A modern car may have up to 100 ECU's and a
  commercial vehicle up to 40.

3
(No Transcript)
4
What is an ECU

• In the Automobile industry an electronic control
  unit (ECU) is an embedded electronic device,
  basically a digital computer, that reads signals
  coming from sensors placed at various parts and
  in different components of the car and depending
  on this information controls various important
  units e.g. engine and other automated operations
  within the car among many.

5
Types of ECU

• ECM - Engine Control Module
• EBCM - Electronic Brake Control Module
• PCM Power train Control Module
• VCM - Vehicle Control Module
• BCM - Body Control Module

6
TYPES OF SENSORS

• ENGINE SENSORS
• Oxygen Sensor
• Throttle Position Sensor
• Crankshaft Position Sensor
• MAP Sensor
• Engine Coolant Temperature Sensor
• Mass Air Flow Sensor

7
SPEED SENSORS

• Speed sensors are machines used to detect the
  speed of an object, usually a transport vehicle.
  They include
• Wheel speed sensors
• Speedometers
• Pitometer logs
• Pitot tubes
• Airspeed indicators
• Piezo sensors (e.g. in a road surface)
• LIDAR
• ANPR (where vehicles are timed over a fixed
  distance)

8
Auto electrical services 

• Engine and engine component based services
• Engine tuning Tuning the engine to optimal
  performance using the latest equipment will
  deliver a more responsive drive, by restoring
  lost power and increasing fuel economy, helping
  to lower overall emissions.
• Engine carbon clean With everyday driving and
  the use of lesser quality fuel your engine starts
  to accumulate carbon on fuel injectors and other
  engine components. This accumulated carbon causes
  poor fuel economy, a decrease in power and
  responsiveness plus rough idling and emissions.
• Alternator The alternator converts mechanical
  energy into electrical energy to help power
  electrical parts within your vehicle and to
  recharge your battery.

9
Cont..

• Starter motor Starter motors turn your engine
  over by drawing electricity from your car battery
  to get the crankshaft going.
• Fuel injection system If your fuel
  injection system isnt working properly your
  cars performance will be directly affected. By
  utilizing the appropriate diagnostic equipment we
  can locate the issue and prevent it from
  occurring in the future.
• Fuel injectors If your fuel injectors are
  clogged or dirty your vehicle will be
  experiencing limited acceleration, decreased
  power, lackluster fuel efficiency, irregular
  idling along with possible increased emissions.

10
Cont..

• Electronic fuel pumps The fuel pump pumps fuel
  from the tank to the vehicles engine. Fuel is
  delivered constantly to make sure the engine is
  performing properly and constantly. 
• Automatic transmission diagnostics Your
  automatic transmission needs to be in optimal
  working order to make sure gear shift transitions
  are performed smoothly. If your transmission
  isnt running smoothly it will jump through gears
  and ultimately wear out gears and plates.

11

• Other electrical component services
• Batteries The battery supplies electricity to
  the starter motor and ignition system that starts
  your car.
• Air bags To keep you and your passengers safe,
  it is good to know your air bags are in working
  order. Our auto electricians can check and repair
  any compromised electrical work that has an
  impact on your air bags.
• Sound and vision Looking to add a better
  entertainment, rear vision or parking system? No
  worries. We can install, wire and setup sound
  systems, DVD players, flip down headrest
  screens and rear parking cameras and sensors.

12

• Power windows and central locking Central
  locking and your power windows issues are often
  caused by an electronics issue that can be easily
  repaired after a system wide diagnostic scan is
  performed.