Automobile Current Affairs - 2020

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GoI: Technology developed to improve Fuel Efficiency of Internal Combustion Engines

The International Advanced Centre for Powder Metallurgy and New Materials (ARCI) operating under Department of Science and Technology, Government of India has developed a technology to improve fuel efficiency of internal combustion engines.


The technology improves the fuel efficiency by reducing friction in the engines. This has been achieved through Laser surface micro-texturing. In this technology, the friction is controlled by controlling the size, density and shape of the micro-surface texture features. Such a texture is created by using a pulsating laser beam. The beam creates micro-dimples, grooves on the surface of the materials. These Grooves trap debris that usually increase friction and thereby wear and tear.

About the model

The texture has been created on internal combustion engine components such as cylinder liners and piston rings. The model was tested at the ARCI lab under difference speeds and also at different temperatures of lubrication oil and coolant.

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Volkswagen Chief Executive Martin Winterkorn resigns

Volkswagen Chief Executive Martin Winterkorn has resigned following the revelation that the world’s largest carmaker (in terms of sales) had manipulated US diesel car emissions tests.

His resignation comes after the German carmaker admitted that it had deceived US regulator Environmental Protection Agency (EPA) in exhaust emissions tests by installing a device to give more positive results.

What is the issue?

  • Volkswagen had cheated on emissions tests especially in its diesel cars in order to enhance their technical performances by trading off US environmental guidelines.
  • Media has dubbed this manipulation scandal of diesel car emissions tests as Diesel Dupe.
  • During the test cars were fitted with devices with manipulation software in cars with diesel engines that could manipulate the emissions norms.
  • It is estimated that company has sold around 11 million vehicles worldwide by violating the environmental norms.
  • The case has sparked a criminal investigation worldwide which could lead to legal action with financial fines for the auto giant.

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