Controller corrects vibrations on the fly

Article Abstract:

Group Lotus has designed an accurate high-speed positional control system for hydraulically-actuated engine valves. Ten thousand times per second closed-loop correction provides an advance on cam and follower systems. Control is based on modern digital signal processing chips programmed in C computer language. Although designed for a test engine the company is investigating cost effectiveness in other automotive control functions.

Cover Story, Fluid power technology, Fluid power equipment, Control systems, Hydraulic control, Group Lotus PLC

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Changing ratios by wire beats a human

Article Abstract:

Issues are presented concerning the benefits which can be gained by drivers who are able use electronic controls for changing gears in an automobile. The improved comfort and convenience for the driver are discussed.

Design and construction, Automobiles, Power transmission, Power transmission (Mechanical), Automobile transmissions

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Charting a road to the future

Article Abstract:

An interview with automobile design engineer Andrew Brown is presented. He discusses the progress which has been made in automotive electronics and predicts the first driverless driving by 2011.

Interview, Personalities, Engineering design, Brown, Andrew

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