Anyone work for LuK ?? (info on clutch actuator required)
Anyone work for LuK ?? (info on clutch actuator required)
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anonymous-user

Original Poster:

78 months

Thursday 16th December 2010
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Hi all, bit of a long shot this one, does anyone work for LuK? I'm trying to find the maximum hydraulic system output pressure for their electric clutch actuator unit:



anyone?? sonar

stevieturbo

17,987 posts

271 months

Thursday 16th December 2010
quotequote all
Cool device...maybe ask ECU Testing ?

v8guinness

204 posts

305 months

Friday 17th December 2010
quotequote all
Unfortunately nobody works on those systems for LuK in the UK anymore...
Is it worth asking what you intend to do with such a device?
They usually require a fair amount of control and calibation work to setup for their original purpose!
(i.e. a new application!)

anonymous-user

Original Poster:

78 months

Saturday 18th December 2010
quotequote all
I'm just look ing at a few options for automating the clutch on my car, enabling some anti-stall logic, some launch logic, a "handbrake" declutch strategy etc.

It just made sense to see if i could use some existing h/w, and if i use a "powered" master cylinder with integral displacement sensor then i don't have to modifiy the clutch release mech in the bellhousing etc.

Regarding the cal, i was planning on just using the motor and displacement sensor from the LuK actuator and nailing on my own Uc & H bridge to control it.


Basically if i knew what the maximum ouput pressure from the mechanical system was i can work out if it's worth trying to base something on that actuator etc!

NightDriver

1,082 posts

250 months

Saturday 18th December 2010
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I did some work on an automated clutch a while back.. got some info on all the actuators somewhere - will try and dig it out on Monday.

I'm not involved in the cal, but the guys that were found massive issues with the clutch wear correction. The vehicle we were dealing with had approx. 4mm clutch wear over it's life time! They had a great cal for a new clutch, but if we stuck the equivalent of 5k wear on, it would be terrible again!

Was an interesting project though!

stevieturbo

17,987 posts

271 months

Saturday 18th December 2010
quotequote all
Max_Torque said:
I'm just look ing at a few options for automating the clutch on my car, enabling some anti-stall logic, some launch logic, a "handbrake" declutch strategy etc.

It just made sense to see if i could use some existing h/w, and if i use a "powered" master cylinder with integral displacement sensor then i don't have to modifiy the clutch release mech in the bellhousing etc.

Regarding the cal, i was planning on just using the motor and displacement sensor from the LuK actuator and nailing on my own Uc & H bridge to control it.


Basically if i knew what the maximum ouput pressure from the mechanical system was i can work out if it's worth trying to base something on that actuator etc!
Obviously not the route you want to take. But there are already systems out there that do what you wish to achieve. No doubt pricey too.

anonymous-user

Original Poster:

78 months

Saturday 18th December 2010
quotequote all
Luckily as a purely competition car wear is not an issue, i'll just write a "bite point learn" strategy that re-adapts it, and this can be done regularly. also the clutch isn't used on any gear shift (up or down) so it's only got to do pull away. (Antistall is the main reason i'd like to add and automated clutch, because with a 5" CC multiplate clutch and bugger all engine inertia, combined with a 65mph 1st gear, getting off the line is suprisingly tricky!

I don't really want to use an exisiting "off the shelf" solution as that won't give me any access to the firmware, which would limit the things i could code etc