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- From: leonglaw@hpsgm2.sgp.hp.com (Lawrence LEONG)
- Date: Fri, 20 Nov 1992 06:46:17 GMT
- Subject: Mech ABS retrofit (ABS-TRAX)
- Message-ID: <53060095@hpsgm2.sgp.hp.com>
- Organization: HP Singapore
- Path: sparky!uunet!spool.mu.edu!sdd.hp.com!hpscit.sc.hp.com!scd.hp.com!hpscdm!hplextra!hpcc05!hpsgm2!leonglaw
- Newsgroups: rec.autos
- Lines: 34
-
- I've just seen a mechanical ABS retrofit. Its called "ABS-TRAX" and is
- supposed to be derived from aircraft systems. Have you heard of it, and if
- so, any data-points or anecdotes?
-
- The system consists of a small pressurised chamber which fastens (one per
- brake circuit) onto the master cylinder output, somewhat like a reserviour.
- The chamber contains a pressurised Nitrogen chamber and diagphram; when the
- brake fluid hits a pre-set pressure (supposed to be within 5-10% of lockup),
- a valve will actuate to relieve the pressure and keep the wheels on the
- threshold of skidding (somewhat similar to threshold braking). Under normal
- braking, it is supposed to not activate.
-
- There is no speed sensor like the electronic versions. Since this device
- works on a principle similar to threshold braking (I think), it appears to
- be better than electronic ABS, no?
-
- The sales guy could not tell me how/what was used to determine the threshold
- nor the method of pressure relief.
-
- This system is supposed to in use on aircraft, and is supposed to reduce
- braking distances by up to 30%. Its also supposed to be DOT certified (for
- what its worth). The company claims to have sold 15000 units in US alone.
-
-
- Does anyone have any experience with this? Does this system sound viable?
- Is this really used in aircraft? Should I part with good money for this?
-
- (price is approx US$620, incl installation).
-
- comments/suggestions welcome.
- lawrence
- leonglaw@hpsgm2.sgp.hp.com
-
-
-