Computers and Cars

Your car has as many as 100 microprocessors on board. If someone said to make them believe? Well it's true. Would you believe me if I said your car may contain more lines of software code from a hunter? Well it's true. Premium-class cars these days are somewhere in the neighborhood of 100 million lines of code, about 95 million lines of software code than the U.S. military fighter jet.

lines of software code are required to work 50-100 microprocessors known as ECU (Electronic Control Unit) on board the vehicle. Sometime in the future cars are expected to use 200 million to 300 million lines of code for the ECU. This allows the ECU to make decisions in 15 to 40 milliseconds. It is estimated that more than 80 percent of automobile innovation comes from computer systems and software has become a major contributor to the value (and price stickers) in cars. Over the years the number of microprocessors has increased in meeting emissions, fuel standards, reduced wiring, and meet new safety features. In the future, even the ability to link systems car computer to a network of experts who can take information, analyze data and load the necessary software.

microcontrollers (MCUs) located in the control of the car engine systems are small computers include core processor, RAM (Random Access Memory), and input / output peripherals. These microcontrollers have gone from 12 MHz 8051 CPU on a 32-bit processing power with more than one set of peripherals. Microcontrollers are used to control transmission, anti-lock brakes, airbags, air conditioners, and other key components in cars. More microcontroller work alone and need to send information to other MCUs. As a result, three different network bus systems have been developed under the name CAN, LIN, and the majority.

can (Controller Area Network) is a fast serial bus is used in automotive applications. CAN uses a twisted pair cable to allow the ECU and other devices to communicate with each other without a host computer (server). Data can be sent to eight bytes using non-return to zero, the binary pattern of transmission speed, up to 1 Mbps, the same rate as some satellite downloads.

LIN (Local Interconnect Network) is a low-speed communication bus with one master and up to 16 bus slave. LIN uses a sub-network to communicate with CAN to 20 kbps.

MOST (media oriented systems transport) high speed multimedia network used to transmit video, audio and data automobilima.Mreža uses ring topology with synchronous communication. The bridge is broken down into three generations. MOST25 was first introduced, which had only a bandwidth of 705.6 kbit / s. Secondly, MOST50 increased bandwidth, and be capable of transmitting data up to 1024 kbit / s. MOST150 was published in 2007 and increase data transfer speeds up to 3072 kbit / s .

All in all, the cars these days are becoming more sophisticated than ever before. Computer technology has taken a heavy toll on cars that are manufactured today. Cars now are all about the rims, paint job, and sunroofs as that in the past. Consumers want GPS, satellite television, heat sensor cameras, and much more, including software and hardware equipment is increasing by many car manufacturers. Who knows where this technology will take us there May be a day that all you do is press the button to start the car, sit back and let the car take over duties such as acceleration, steer and stop. Given the amount of code lines is expected in the cars in the next few years, this day is not far away.