Emission Control System Overview

The overview is designed to provide an extremely brief touchstone for the various topics covered in each section. Many readers have found this an invaluable tool for distilling topics down to their most basic elements before digging in. We hope you find it helpful as well.
________________________________________________________

Over the years there has been an intense effort by the government, environmental groups and auto manufactures to develop ways in which harmful auto emissions can be reduced. As a result, every modern automobile is designed to reduce harmful emissions and meet federal emissions standards. To get the job done, each automobile is equipped with an emissions control system.

The auto emissions control system is comprised of various devices and systems designed to work together to reduce harmful emissions into the environment. Auto emissions come in a variety of forms and constitute varying degrees of health and environmental concerns.

In terms of the history of the automobile, most emissions control systems are fairly new. In the past, the harmful affects of auto emissions on the environment and increased health risks were not well known. As a result, little if anything, was done to diminish auto emissions. It wasn’t until the middle of the 20th century that people began a concentrated effort to quantify the amount of auto emissions and to begin looking for ways to reduce their release into the atmosphere. During the process, auto emissions were broken down into four basic emission categories and they include: carbon monoxide, hydrocarbons, nitrogen oxides, and particulate matter. In time, devices and systems were developed to combat emissions.

The general theme of modern emissions control is based on three basic principles. First, stop the venting of untreated emissions directly into the environment. Second, when applicable, focus on recycling of emissions or use chemical or other processes to diminish the harmful affects of emissions. Third, use a sophisticated network of onboard computers and sensors to monitor the effectiveness of the emissions control process and make on the fly adjustments to tweak performance and reduce emissions. The same computer network is equipped to alert drivers when something is wrong with the system and an automobile is emitting excessive levels of pollution.

In some states, a fourth component of emissions control is employed through legal statute. Many states require periodic emissions control testing as a way to enforce control standards.

Each part of the emissions control system tackles the problem of auto emissions in a unique and sometimes ingenious way. Although each component tackles one part of the chain, together they are part of an integrated system. Today’s automobiles emit a small fraction of harmful emissions that occurred ten or twenty years ago. With the prospect of cleaner burning fuels or the use of hydrogen as a renewable resource, the future of auto emissions will undoubtedly look radically different in the years to come.

Over the years there has been an intense effort by the government, environmental groups and auto manufactures to develop ways in which harmful auto emissions can be reduced.

The fruit of these efforts are being reaped today as automobiles are the cleanest operating ever and harmful emissions have been greatly reduced. This is due in large part to the development of sophisticated emissions control systems that constantly monitor engine operation and Over the years there has been an intense effort by the government, environmental groups and auto manufactures to develop ways in which harmful auto emissions can be reduced.

The fruit of these efforts are being reaped today as automobiles are the cleanest operating ever and harmful emissions have been greatly reduced. This is due in large part to the development of sophisticated emissions control systems that constantly monitor engine operation and

Central to the reduction of harmful emissions has been the role of sophisticated onboard computers and sensors. Sensors monitor nearly every aspect of an automobile and report to various computers who can make adjustments for optimal performance and minimal emissions.

Pollution efforts focus primarily on reducing fuel and carbon monoxide emissions.

More Emission Control Information

Emission Control Glossary
Emission Control Milestones In Auto History

General Information

3DAuto Glossary
3DAuto Biography Series
3DAuto Legends Series
Milestones In Auto History

Rate This Page

Comments:

© 2005-2006 3DAuto.com