Title
ELECTRONIC ENGINE CONTROL
MULTI-CHIP MODULE REDUCES SIZE, WEIGHT AND COST OF INJECTION CONTROL UNIT
Technologies used

MCM

Industrial sector (PRODCOM code)
    31 Electrical Equipment for Engines and Vehicles
Abstract
Magneti Marelli SpA (MM) is an Italian company with 24300 employees in 45 locations world-wide and an annual turnover of 3.6 Billion . 2200 staff are employed in engineering. Product areas include automotive power train, interior equipment, safety and comfort equipment, electromechanical components and after sales lubricants. The Electronic Systems Division (MMDE), which is involved in this experiment designs and manufactures automotive electronic units for traction, instrumentation, anti-theft and engine control. The latter of these, in the form of a fuel injection control unit, is the object of this experiment. This works with the electronic ignition and engine performance parameters to control the injected fuel pattern. Technology: printed circuit board equipped with surface mounting devices and through hole devices. The connector is a through hole one. The power components are surface mounted Markets are very large, world-wide and cover all class of vehicle from Formula 1 race cars to family saloons. MMDE has very high experience and expertise in the automotive electronics field and, particularly, in PCB technology, FPGA-digital and analogue ASICs design, Hybrid circuits development and production. In a very competitive marketplace the company must constantly innovate products and encompass new technology, but on the other hand customers tend to be suspicious and conservative. The reason for this experiment is simply that to remain competitive price (product cost), size, weight must be improved. The current product employs printed circuit board plated through hole technology and is populated with surface mounting devices for the power discrete power components. Microcontroller and flash EPROM are also used. The injection control unit was redesigned using an MCM-L technology and ball grid array packaging to improve the cost, size, weight and reliability of the product and provide a standard component which could be used in other company products. The MCM prototype was produced by a subcontractor and assembled and tested by MMDE. Environmental testing of the product has been completed. The duration of the project to prototype was 20 months. The cost of the project to prototype was 137K of which 100K was the FUSE investment. A further 1M was required to industrialise the product. Assuming a minimum cost reduction of 1 per piece, a payback period of the total investment is estimated in just over three years, while an ROI of 175% over the 5 year sales life of the product is achieved. An MCM-L similar to the one developed in this AE may be a good solution in equipment with high electronic content as automotive electronic equipment, computers, instrumentation, consumer electronics (car radio system, video-cameras), Telecom electronic equipment where size, cost and weight need to be improved yet flexibility in assembly is required.
Company
Electronic Systems Division
Magneti Marelli S.p.A.
Via Trieste, 67
27100 Pavia
Italy

Detailed information

You can also benefit from microelectronics

MCM technology provided Electronic Systems Division with the means of improving its products and enhancing its market position. You can also achieve significant benefits by acquiring the right microelectronics technology and utilising it in your product or manufacturing process. You can get help from FUSE to realise this.

FUSE is a technology transfer programme, funded by the European Commission to stimulate the wider use of microelectronics technologies by European enterprises to increase their competitiveness and enhance their economic growth. The demonstrator described here is one of many examples in the public FUSE portfolio covering the whole spectrum of microelectronics technologies and spanning a wide range of applications and industry sectors.

FUSE provides you with:

  • Best practice in acquiring specific microelectronics technologies and conducting full development projects through the FUSE portfolio of real life demonstrator documents.
  • Local training and expert support to plan your innovation realistically and help you conduct your project successfully.

Further information and support relating to this and other demonstrators can be obtained from the addresses below.


Further information   Guiding Technology Transfer Node
For further information and support regarding this case study, please contact a Technology Transfer Node (TTN) in your region.
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