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Application Of Electronics in Automobiles

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APPLICATION OF ELECTRONICS IN AUTOMOBILES

 

Automotive electronics or automotive embedded systems are distributed systems and according to different domains in the automotive field they can be classified into:

}        Engine Electronics

}        Transmission Electronics

}        Chassis Electronics

}        Active Safety

}        Driver assistance

}        Passenger Comfort

}        Infotainment systems

 

Engine Electronics

}        One of the most demanding electronic part of an automobile is the engine control unit. Engine controls demand one of the highest real time deadlines, as the engine itself is very fast and complex part of the automobile. Of all the electronics in any car the computing power of the engine control unit is the highest, typically a 32-bit processor.

 

In a Diesel Engine

}        -Fuel injection rate

}        -Emission control, Nox control

}        -Regeneration of oxidation catalytic converter

}        -Turbocharger control

}        -Cooling system control

}        -Throttle control

 

In a Gasoline engine

 

}        OBD OnBoard diagnosis

}        -Cooling system control

}        -Ignition system control

}        -Lubrication system control (only few has electronic control)

}        -Fuel injection rate control

}        -Throttle control

 

Transmission Electronics

}        This controls the transmission system; mainly it controls the shifting process of the gears. For a better shift comfort, lower torque interrupt while shafting -these electronics are used in a manual transmission. Many semi automatic transmissions which have a fully automatic clutch or a semi-auto clutch (only declutching) use electronics for its operation and control. Also fully automatic transmissions use controls for their operation.

 

Chassis Electronics

 

}        ABS – Anti-lock braking system

}        TC – Traction control system

}        EBD – Electronic brake distribution

}        ESP – Electronic Stability Program

 

 

Active Safety

}        Air Bags

}        Hill Descent Control

}        Emergency Brake assist system

 

Driver assistance

}        Lane assist system

}        Speed assist system

}        Blind spot detection

}        Park assist System

}        Adaptive Cruise Control System

 

Passenger Comfort

}        Automatic Climate control

}        Electronic seat adjustment with memory

}        Automatic wipers

}        Automatic Headlamps

 

Infotainmentems

}        Navigation system

}        Music system

               Information access

 

 

 

 

 

History & Latest Trends In Microcontroller & Microprocessor

Reading Time: 5 minutes

      

       Topics :-

  • –   Physical View of MPU & MCU
  • –   Moore’s Law
  • –   Key Features Of MPU & MCU
  • –    Bridge between College and Real Life Scenario-Work Of Intel Engineer
  • –   Latest in MPU & MCU
  • –   Leading Companies In MPU

 

Physical View of MPU & MCU:

Historical Background

Fairchild

  • –   Fairchild Semiconductors founded in 1957, invented the first IC in 1959.
  • –   In 1968, Robert Noyce, Gordan Moore, Andrew Grove resigned from Fairchild Semiconductors.
  • –   Found their own company Intel (Integrated Electronics).
  • –   Intel grows from 3 man start-up in 1968 to industrial giant by 1981.
  • –   It had 82,500 employees (2010) and $53.34 Billion revenue(2012).

Timeline:

  • –   1947-Invention Of Transistor
  • –   1959-Invention Of Integrated Circuit
  • –   1965-Birth Of Moore’s Law
  • –   1971-Development of First Microprocessor-4004
  • –   1971-Development of First Microcontroller-TMS1000
  • –   2011 May 2, , Intel announced its first 22 nm microprocessor, codenamed Ivy Bridge, using a technology called 3-D Tri-Gate

 

Gorden Moore’s Law

”The number of transistors on integrated circuits will double approximately every 24 months.”

 moores law

 So what changes do they do actually?

Bring in Advanced Micro-architecture technology which puts in more and more no. of transistors on a unit sized chip

 

Key Features Of MPU & MCU:

  • Smaller Size
  • Lower Cost
  • Higher Reliability
  • Lower Power Consumption-CMOS
  • Higher Versatility
  • More Powerful

 

Bridge between College and Real Life Scenario-Work Of Intel Engineer

What do these Engineers do?[1]

–   Process Engineers-develop the most efficient methods for semiconductor manufacturing using state-of-the-art equipment and materials

–   Yield Engineers– work closely with process engineers to improve product yield and to troubleshoot process flow from root causes to equipment tuning

–   Equipment Engineers–  own and lead the stability, improvement, maintenance and performance functions of extremely advanced tools

–   Design Automation and Computer Aided Design (CAD) Engineers– design, develop, maintain, and provide user support of CAD tools, assist with schematic entry and analysis in the integrated circuit design process, and create and implement computer-controlled automatic test systems. In all of these tasks, their core objectives are simple—to improve quality and reduce costs

–   Hardware and Software
Product Development- ensuring the testability and manufacturability of integrated circuits, optimizing component production, and evaluating, developing and debugging complex test methods. Working with our process technology development and product teams, these individuals help deliver the best process and design effective reliability models based on ROI, process limitations, Q&R requirements and product usage models

–   Component Design and Validation–  responsible for chip layout, circuit design, circuit checking, device evaluation, and validation. Starting with product requirements and logic diagrams, they plan design projects and help address the unique needs of our customers

–   Research and Development– Explore how customers interact with technology, what they love about it, and how to make off-the-wall ideas usable reality. Whether you’re applying new materials, emerging technologies or customer insights, your innovations will be what transforms the computing capabilities of tomorrow.

 

Latest in MPU & MCU:

What the hell is the difference between these i3 i5 and i7 Processors???

I3 I5 I7
–   Cores-2(dual)–   3-4 MB Cache–   2.93 to 3.06 GHz Clock Speed  –   Cores2(dual)/4(Quard)Threads-2/4–   4/(6-8) MB Cache–   3.2 to 3.6/2.4 to 2.6 GHz Clock Speed–  Cores-4(quard)8 MB Cache3.06 to 3.2 GHz Clock Speed  
–   Threads-4  Threads 2/4 Threads-8
–   Hyperthreading-Yes –   Hyperthreading-Yes/No Hyperthreading-Yes
–   Turbo Boost-No –   Turbo Boost-Yes/Yes Turbo Boost-Yes
–   32 nm technology –   32/45 nm technology 32-45 nm technology

 

 

Meaning Of Pratik has 64-Bit Laptop???

  • –   It means the Microprocessor has 64 data bus lines.
  • –   So if you have 32 bit Microprocessor, then it means that there are 32 data lines .

Meaning of 256 MB Memory

–   256 =2^8

–   So there are in total 8 address lines

 

Leading Companies In MPU:

 intel

INTEL

 

 

  • –   Integrated Electronics founded in 1968
  • –   Paul Otellini –CEO
  • –   Headquarter-Santa Clara ,California
  • –   Intel has also begun research in electrical transmission and generation
  • –   It has 23,000 employers
  • –    Intel has recently introduced a 3-D transistor that improves performance and energy efficiency.
  • –   Intel has begun mass producing this 3-D transistor, named the Tri-Gate transistor, with their 22 nm process, which is currently used in their 3rd generation core processors initially released on April 29, 2012

Others:

 

 

 History & Latest Trends In Microcontroller & Microprocessor microcontroller vs microprocessor History & Latest Trends In Microcontroller & Microprocessor microcontroller vs microprocessor History & Latest Trends In Microcontroller & Microprocessor microcontroller vs microprocessor
History & Latest Trends In Microcontroller & Microprocessor microcontroller vs microprocessor  History & Latest Trends In Microcontroller & Microprocessor microcontroller vs microprocessor  History & Latest Trends In Microcontroller & Microprocessor microcontroller vs microprocessor

 

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Power of Nanotechnology

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Nanotechnology is the engineering of tiny machines. It is the projected ability to build things from the bottom up inside personal nano-factories (PNs) using techniques and tools being developed to make complete, highly advanced products.

Ultimately, nanotechnology will enable control of matter at the nanometre scale, using mechanochemistry. Shortly after this envisioned molecular machinery is created, it will result in a manufacturing revolution, probably causing severe disruption. It has serious economic, social, environmental, and military application.

One of the cool feature of Nanotechnology is the synthesis of Buckypaper from Carbon Nanotubes. A Carbon Nanotube is a tube-shaped material, made of carbon allotrope, having a diameter measuring on the nanometer scale. Carbon Nanotubes have many structures, differing in length, thickness, and in the type of helicity and number of layers. Although they are formed from essentially the same graphite sheet, their electrical characteristics differ depending on these variations, acting either as metals or as semiconductors.

Hence various essential properties can be obtained in one Buckypaper sheet at the same time because of the Carbon Nanotubes. Watch the video below to get more insight on how the use of Buckypaper will revolutionize our lives.

 

# References: http://www.nanocyl.com/CNT-Expertise-Centre/Carbon-Nanotubeshttp://www.crnano.org/basics.htm

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