[DeTomaso] parking brakes

[Charles McCall]

Sorry, you are correct that it is a linear actuator. I answered quickly. In
any case, it is a mechanical actuator and not pressurizing the hydraulic
line. 

 

From: Tomas Gunnarsson [mailto:guson at home.se] 
Sent: miércoles, 13 de enero de 2016 23:02
To: charlesmccall at gmail.com
Cc: detomaso at poca.com
Subject: Re: [DeTomaso] parking brakes

 

It is more likely a linear actuator driven by a motor. A solenoid would not
be good as it would need to draw current for the whole time the brakes are
on. You can probably hear the motor whine when you flip the switch (or
whatever) and then it goes silent when the brakes are on/off. Where there's
legislation requiring a parking brake it's usually also a requirement that
it's mechanically actuated, hydraulics are not allowed.

 

Tomas



<-----Ursprungligt Meddelande----->


 

 

From: Charles McCall [charlesmccall at gmail.com]
Sent: 13/1/2016 10:53:34 PM
To: MikeLDrew at aol.com;guson at home.se;gaino at earthlink.net;detomaso at poca.com
Subject: Re: [DeTomaso] parking brakes 

I confess I don't know if OEM electric parking brake systems work by 
pressurizing the fluid in the line, or if they are a simple mechanical 'arm'

that 
is pulling on a mechanical parking brake? Does anybody know that for sure? 
****Audis use a mechanical parking brake actuated by a solenoid - the second

case. They do not pressurize the fluid in the line. They have some 
electronics to ease the brake on if you are moving, but actuating it at any 
speed locks up your brakes. They are either on or off. 



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-------------- next part --------------
   Sorry, you are correct that it is a linear actuator. I answered
   quickly. In any case, it is a mechanical actuator and not pressurizing
   the hydraulic line.


   From: Tomas Gunnarsson [mailto:guson at home.se]
   Sent: miercoles, 13 de enero de 2016 23:02
   To: charlesmccall at gmail.com
   Cc: detomaso at poca.com
   Subject: Re: [DeTomaso] parking brakes


   It is more likely a linear actuator driven by a motor. A solenoid would
   not be good as it would need to draw current for the whole time the
   brakes are on. You can probably hear the motor whine when you flip the
   switch (or whatever) and then it goes silent when the brakes are
   on/off. Where there's legislation requiring a parking brake it's
   usually also a requirement that it's mechanically actuated, hydraulics
   are not allowed.


   Tomas

   <-----Ursprungligt Meddelande----->



   From: Charles McCall [charlesmccall at gmail.com]
   Sent: 13/1/2016 10:53:34 PM
   To:
   [1]MikeLDrew at aol.com;guson at home.se;gaino at earthlink.net;detomaso at poca.co
   m
   Subject: Re: [DeTomaso] parking brakes
   I confess I don't know if OEM electric parking brake systems work by
   pressurizing the fluid in the line, or if they are a simple mechanical
   'arm'
   that
   is pulling on a mechanical parking brake? Does anybody know that for
   sure?
   ****Audis use a mechanical parking brake actuated by a solenoid - the
   second
   case. They do not pressurize the fluid in the line. They have some
   electronics to ease the brake on if you are moving, but actuating it at
   any
   speed locks up your brakes. They are either on or off.
   _______________________________________________
   Detomaso Forum Managed by POCA
   Posted emails must not exceed 1.5 Megabytes
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   [3]http://poca.com/mailman/listinfo/detomaso_poca.com
   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   .

References

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   2. mailto:DeTomaso at poca.com
   3. http://poca.com/mailman/listinfo/detomaso_poca.com