Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 12-18-2002, 04:13 PM
Registered User
Join Date: Sep 2001
Location: Austin, Tx
Posts: 713
A question about alternators...

Hello, do the alternators in our benzes have some type of clutch mechanism or do they stay on at maximum current generation at all time? Its seems like a waste to have all 80A or whatever of juice being generated if you are just idling around with the radio off...
Reply With Quote
Old 12-18-2002, 04:30 PM
Posts: n/a
As with any automotive alternator or generator since they were first added to cars about 70 or 80 years ago, there is a regulator. Although there is no clutch and the alternator mechanically turns at any time the engine is running, it is not producing anything electrically unless the regulator determines that it must do so.

Before the invention and application of semiconductors to the automobile, this was done with electromechanical regulators. If the voltage sank to a certain level, a relay contact was energized which completed the circuit between the generator and battery.

Now that we have semiconductor based regulators, there is an active device that conducts electricity to the battery at such a time when the battery becomes low on charge.

So, no mechanical clutch, but there is automatic electrical management to prevent 80 amps from being developed at times when it is not needed or wanted.

Hope this helps,
Reply With Quote
Old 12-18-2002, 05:23 PM
Registered User
Join Date: Sep 2001
Location: Austin, Tx
Posts: 713
Thankyou very much!
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 01:48 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page