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Michael Sztyk
TryHard
Victoria
1JZ-GTE Soarer TT - RIP

Posts: 188
Reg: 12-2005

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Sunday, November 15, 2009 - 09:51 am, by:  Michael Sztyk (Sli1) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Im looking at getting a soarer but a couple questions first.

It has an ABS error that comes up after driving for a while. When you stop the error is still there and you can hear the ABS under the dash making a repeating buzz sound that lasts around 2 seconds.
Pump the breaks at the lights a few times and the error is gone.

Second, there is a drone that sounds like its got an exhaust but it doesnt look like it has an aftermarket exhaust system. Drone is at around or just under 2,000rpm. Soon as the turbos boost its gone. There is a cooler on there too but i wouldnt think of that being related.
Ant ideas here? Leak, gutted cat, etc?

Other then that it runs good :-)
Marc Hoffmann
Tinkerer
Vic
Soarer TT

Posts: 69
Reg: 07-2009

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Sunday, November 15, 2009 - 10:23 am, by:  Marc Hoffmann (Rushed) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

if its an auto you will never spend time at 2000rpm, mine cruises around 2500>2700, maybe its had some mufflers cut out or gutted/damaged.

mine had that ABS error, but the dealer fixed it during roadworthy, from memory its an abs accumulator, try searching that one.
Daniel Blackham
Tinkerer
Victoria
31V8

Posts: 29
Reg: 10-2009

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Sunday, November 15, 2009 - 11:04 am, by:  Daniel Blackham (Daniel24) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yea the ABS could be the accumulator needs a regassing, im in the process of doing mine now, will let you know how it goes. Does your handbrake light stay on also?
Michael Sztyk
TryHard
Victoria
1JZ-GTE Soarer TT - RIP

Posts: 189
Reg: 12-2005

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Sunday, November 15, 2009 - 12:46 pm, by:  Michael Sztyk (Sli1) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks for the replies guys :-)

Marc, yeah its an auto, i spend some time in traffic so it will get annoying but im keen to get that fixed up, or not. See how i go with that.
How much did that cost you for the dealer to fix that up?

Daniel, yeah im getting the handbrake thing come up too. Let me know how much that will cost ya. Sounds like the same thing. I was told that its just a matter of clearing a code?
Daniel Blackham
Tinkerer
Victoria
31V8

Posts: 30
Reg: 10-2009

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Sunday, November 15, 2009 - 03:55 pm, by:  Daniel Blackham (Daniel24) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Im waiting on a couple emails from suspension workshops about regasing pricing, I think it will be alot cheaper having the accumulator regased compared to buying a refurbished unit.
Only downside is that since it leaked the first time then just a regasing wont last too long as it will leak again.

But this does depend on prices as you can get the refurbished one for $300 fitted.
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 4905
Reg: 10-2005

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Monday, November 16, 2009 - 06:14 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

My advise is walk away from it and keep looking, or insist the current owner get the problems seen to before you purchase it.

Buy a car that has no error codes or major issues to fix, then you won't be dissapointed or start hating on it because of all the money its costing you, and you can spend your money on improving it instead of fixing it.

There are so many Soarers available to choose from, keep looking.
Ben Kelly
DieHard
Wentworthville
v8

Posts: 676
Reg: 08-2005

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Monday, November 16, 2009 - 06:46 pm, by:  Ben Kelly (Ace) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Michael, id be wondering what else is wrong that isnt so obvious. You can get a soarer fairly cheaply these days - with everything properly maintained. Im with Matthew.
Ian Johnston
Goo Roo
South Australia
UZZ30 GT 4.0, UZZ31, BMW R1150R

Posts: 1094
Reg: 07-2005

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Tuesday, November 17, 2009 - 04:13 am, by:  Ian Johnston (Ted) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yeah, I agree with Ben, and Matthew. Plenty of Soarers on the market without buying a clapped out one. You will buy a reasonable one for $5-6,000.
Michael Sztyk
TryHard
Victoria
1JZ-GTE Soarer TT - RIP

Posts: 190
Reg: 12-2005

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Friday, November 20, 2009 - 08:36 am, by:  Michael Sztyk (Sli1) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks guys, I took the soarer over the weekend. It was a mates car and gave it back.
Exactly as mentioned there are far better condition Soarer's out there for dirt cheap.

Whats everyone spending on fuel these days? How many K's to a tank and will it make a difference on the year model too? id imagine it wouldn't but you never know...

Cheers for replies so far guys! *thumbs up*
Kyle Wathen
DieHard
Vic
JZZ30 Manual GT-T

Posts: 882
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Saturday, November 21, 2009 - 10:38 am, by:  Kyle Wathen (Cspot) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Michael Sztyk wrote on Friday, November 20, 2009 - 08:36 am:

Whats everyone spending on fuel these days? How many K's to a tank and will it make a difference on the year model too? id imagine it wouldn't but you never know...




Depends on how you drive, car condition etc. Year will make no difference.

Normal city driving I average 11L/100km (1JZ), obviously if you flog it 99% of the time that will increase...
Tom Richards
TryHard
nsw
V8

Posts: 284
Reg: 08-2005

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Tuesday, November 24, 2009 - 09:22 am, by:  Tom Richards (Tomr) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

IMO keep away from cars with TRC, they are expensive to fix and dont give a lot of advantage over a car that only has ABS.

How often does traction control kick in for the normal driver? Not needed.
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 4941
Reg: 10-2005

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Tuesday, November 24, 2009 - 10:21 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yeah, and the Soarer TRC is pretty primitive too, compared to a modern luxury car anyway.
Peter Nitschke
Junk Filterer
South Australia
UZZ30 UZZ31

Posts: 11110
Reg: 11-2004

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Tuesday, November 24, 2009 - 11:58 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I gather that the TRC got refined during the life of Soarer production. In my '97 V8 it seems to be quite effective yet not obtrusive.
Andrew Duaso
TryHard
Victoria
V8

Posts: 448
Reg: 02-2009

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Tuesday, November 24, 2009 - 12:07 pm, by:  Andrew Duaso (Andrewd) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

i wish mine had trc, my missus wasnt impressed when we were going sideways @ 110km/h in the wet up the freeway on ramp..... me on the otherhand :-) but it'd be nice i dont know if its my car, but it's the most un predictable car ever.... it's fine then breaks free in the rear and the arse end skated all over the place with no warning some times without trying.... other times try to go a bit crooked and nope not going to happen....
Ken Yo
TryHard
Victoria
V8 SC400

Posts: 260
Reg: 08-2009

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Tuesday, November 24, 2009 - 12:45 pm, by:  Ken Yo (Khangz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I saw a spectacular smash on the Tulla freeway. R33 Skyline was overtaking everyone when eventually he had to overtake a red Elantra when he lost it and smash into the concrete wall at full speed. Car jumped a metre high!

I hope that doesn't happen to me :-(

Please take it easy out on the road people.
David Vaughan
Goo Roo
Relaxed, but no provincial.
IS300

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Tuesday, November 24, 2009 - 12:51 pm, by:  David Vaughan (Davidv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Tom Richards wrote on Tuesday, November 24, 2009 - 09:22 am:

IMO keep away from cars with TRC, they are expensive to fix and dont give a lot of advantage over a car that only has ABS


If you look on this and other sites at common fixes, TRC almost never comes up as a problem and when it has I do not recall there being any great expense. Although TRC uses the ABS sensors, they are otherwise unrelated. One deals with braking and the other with acceleration so to say "[TRC] don't give a lot of advantage over a car that only has ABS" is fairly pointless. TRC gives an advantage that you will not lose traction in a variety of circumstances where you are accelerating. Nothing to do with braking.


Matthew Sharpe wrote on Tuesday, November 24, 2009 - 10:21 am:

Yeah, and the Soarer TRC is pretty primitive too, compared to a modern luxury car anyway


Modern systems usually include a variety of extra effects used for stability control whereas the Soarer's system is a pretty straight engine cut. That said, it appears to be a sufficiently sensitive system, not coarse in its measurement but a bit enthusiastic in its response, as are many modern ones.

Tom Richards wrote on Tuesday, November 24, 2009 - 09:22 am:

How often does traction control kick in for the normal driver?


Practically any wet corner in which you would accelerate, especially one with bumps or ripples in the road. Most people do not need ABS most of the time either. So what? It is still useful when you do need it.
Dave Rose
Goo Roo
wa
uzz31 v8

Posts: 1038
Reg: 03-2007

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Tuesday, November 24, 2009 - 01:27 pm, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

On post 96/8 its called V.S.C. +A.B.S. on wet days when TRC light flickers i am sure it brakes on that wheel.
Phil Gibson
Goo Roo
WA
'91 UZZ31 track bunky, '94 blk/blk UZZ31

Posts: 1566
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Tuesday, November 24, 2009 - 01:56 pm, by:  Phil Gibson (Sciflyer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

All Soarers regardless of year with TRC brake the wheels (well at least all V8s do)

I turn it off when its dry as i find it obtrusive, however its useful in the wet
Paul Knox
Tinkerer
QLD
uzz31's manual and auto

Posts: 67
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Tuesday, November 24, 2009 - 07:01 pm, by:  Paul Knox (Surreal) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I find the traction control very effective.
not to intrusive and leaves the driver feeling in control of the the car not the other way round.

Modern cars with ASC or VSC take too much control away form the driver.
fine if you can't drive , but for a driving enthusiast far to intrusive.

Try this little experiment next time you drive a newish Audi or BMW or Mercedes with ASC or VSC of course
Put your foot flat to the floor whilst driving around a roundabout in the wet.
The car will do no more than about 15km's , all wheels will be braked to maintain traction and correct inertial motion in the car.
I Was invited to an Audi advanced driver training Day, in an attempt by the dealer to get me to purchase an S4 for my wife.

She still drives a soarer after 8 years of ownership onto her second.

ASC , VSC - Very very safe and smart , but no fun what so ever.
far to intrusive and doesn't allow you to gain any acceleration if you are trying to evade an oncoming car for example.

The TRC in a soarer will brake the wheels in conjunction with limiting engine output via the secondary throttle.

Smart enough to be helpful , not smart enough to be intrusive.
Ali Saeed
Goo Roo
WA
V8 Limited

Posts: 1401
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Tuesday, November 24, 2009 - 08:38 pm, by:  Ali Saeed (Ali) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

all the new systems come with various settings anyway. normal sport race ice, off etc.
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1193
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Tuesday, November 24, 2009 - 08:41 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Andrew Duaso wrote on Tuesday, November 24, 2009 - 12:07 pm:

i wish mine had trc, my missus wasnt impressed when we were going sideways @ 110km/h in the wet up the freeway on ramp..... me on the otherhand but it'd be nice i dont know if its my car, but it's the most un predictable car ever.... it's fine then breaks free in the rear and the arse end skated all over the place with no warning some times without trying.... other times try to go a bit crooked and nope not going to happen....




Must be your car or tyres mate what tyres are you running?

I have driven piles of soarers both TT's and V8's and they are not like this at all.

Soarer's are very predictable at the limit the car gives good feedback and it very stable at and beyond the limit.

Unlike nissan R33's which have a terrible unpredictable rear end with little or no feedback. Even when driving R33's even at normal speeds you have no feeling of the rear end and you are unsure if the rear end is really planted to the road, give them a squirt and sometimes they suddenly whip around out of control.

I find the TRC intrusive and they can cause the car to go out of control under to certain circumstances. Most of the time it works perfectly fine but there is more than one situation which the braking of the outside tyre can cause the car to step out.

The pulse rate of the system for both TRC and ABS is also very slow and is IMO too slow to be of any bennifit. You can test this yourself find a quite road plenty of space clear visability and no other cars infront or behind and try braking at the limit with and without ABS measure the difference in distances, you will be surprised how much longer the stopping distance is with ABS and is more than enough to be the difference between stopping or crashing.

Newer cars typically have much faster pulse rate systems possibly more accurate sensors as well as better programing and in real world situations work a lot better. For 1991 model car not many had such systems and I'm sure it was as good if not better than any other system in the world but they are not perfect and certainly no where near as good as systems in the latest top of the line cars.
Adam Lonergan
Goo Roo
Victoria
UZZ32 #369 (V8)

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Monday, November 30, 2009 - 08:02 pm, by:  Adam Lonergan (Alchemistal) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The pulse rate would be linked to the 'best guess' point of the tyre locking up (unless of course there is some physical limitation which I'm not aware of). Change the brake pad type/brand, caliper size, discs, tyre width/brand/quality, road conditions, mass of the car and hey it's only best guess.
Damian Ware
Goo Roo
Victoria
UZZ32

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Monday, November 30, 2009 - 08:39 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Adam the pulse rate is directly related to the electronic control systems which I believe is limited mostly by the speed of the micro controllers used.

Newer faster micros allow for a faster pulse rate, faster pulse sensors, more complex programming hence better result.
David Vaughan
Goo Roo
Relaxed, but no provincial.
IS300

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Monday, November 30, 2009 - 08:56 pm, by:  David Vaughan (Davidv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The pulse rate relates to the sensors -- number of triggers per revolution of the wheel. Even an early 1980s chip could keep up with a typical pulse rate easily, let alone one from 1990.

How did you disconnect ABS for your test, Damian?
David Vaughan
Goo Roo
Relaxed, but no provincial.
IS300

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Monday, November 30, 2009 - 09:01 pm, by:  David Vaughan (Davidv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Incidentally, the Toyota system in the Soarer does not brake the outside tyre, SFAIK. It only cuts the engine. Braking usually happens only at low speeds and is part of a stability control system, not traction control, typically available in high end cars from the mid to late 90s. I am therefore puzzled how you could readily lose control consequent on TRC activating.
Damian Ware
Goo Roo
Victoria
UZZ32

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Monday, November 30, 2009 - 09:15 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

David, UZZ32's do have ESP and it continues to operate at high speed.

I don't know if all models have this but 32's certainly do.

There are situations where the computer stuffs up and applies the brake to the outside rear wheel causing a loss of control it is rear to happen but it can which is a problem.

Yes the pulse rate is related to the sensors but this is limited by the speed of the micro.

Most micros today are 80-100Mhz with very fast sampling and ADC's so you don't have to wait for a result. With older micros even a 2000 model the fastest switching operation that was possible was about 20kHz with 3 sensors or measurements due to the available time and the time taken to get the measurements/sample. Keep in mind 20kHz is highly optimise running very smart math.

With a modern 100Mhz processor it is possible to run at 300kHz. Back in the early to mid 90's processors were not fast enough to allow control and switching of a system at anything more than about 1kHz and the control adjustment was often used every third switching cycle so the real world response was about 300Hz with 3 inputs.

Given most car systems have a sensor on each wheel, and a main speed sensor they have to process 5 speed sensors and the soarer system was developed in the late 80's they are slow and I believe the micro was the limitation that resulted on the sensor pulse rates.
Kyle Wathen
DieHard
Vic
JZZ30 Manual GT-T

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Monday, November 30, 2009 - 09:39 pm, by:  Kyle Wathen (Cspot) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I found the TRC system in the Soarer great.

Simply turned it off in the dry and with 200+rwkw it really helped accelerating in the wet.
David Vaughan
Goo Roo
Relaxed, but no provincial.
IS300

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Monday, November 30, 2009 - 09:55 pm, by:  David Vaughan (Davidv) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

At 100 Km/h with five pulses per wheel per revolution, five sensors, we are still talking a full 3 mS between individual pulses, or a pulse train of about 300 Hz, are we not? Perhaps my quick arithmetic is not right.

Looking around, I can find ESP only on UZZ32 before about 1997 when it seems it was on late UZZ31 models. I do not know if that is correct. It sounds as though you are describing a bug in the software to cause instability.

Kyle, on my experience I disagree with that. I think the TRC on a Soarer sucks in any respect except keeping you safe, killing motive force for an agonisingly long time compared with systems on later cars with more sporting pretensions.
Damian Ware
Goo Roo
Victoria
UZZ32

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Monday, November 30, 2009 - 10:37 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

300Hz switching speed is not directly the speed of the sensors this was the fastest the system could make any form of change to the output. This was early to mid 90's. This was also with the best most expensive hardware available which would not be used in automotive applications.

Before that time micros were too slow and FPGA's were used for that type of application. Toyota developed this hardware before the car was released and probably used what was availalbe in 1987-1989 and would have been not the high end fastest micros.

Exactly what was possible at that time I don't know but the biggest problem with a system like this in a car is pulse rate of sensors is always changing with speed. I should measure the response rate of the output control pulse then compare with a new car would be interesting to see the diffence not just what it felt.

The main speed sensor is very slow and I remember the suprastick guys moving to the wheel speed sensors to have suitable resolution. If I recall correctly the pulse rate was still fairly low and they had issues at low speed.

As per above the faster you go the faster the pulses and the sensors are most likely designed around the micros limitation to handel them at normal driving speeds ie up to 120km/hr. I would expect to achieve a balanced setup the micro would not respond to every pulse at high speed similar to the above example with an adjustment made every 3 events but at low speed there would be a point where the micro could be faster than the sensors and the sensor in the limit factor to the response of the system.

IE 100km/hr lock up the wheels the micro probably will not react until a number of pulse events have passed and is limite by micro speed but at 5km/hr it might be able to react faster than the pulses so the system is then limited by the output from the sesnors.

There is mention in the toyota documentation for a uzz32 about active safety but it is does not appear to be reffering to the suspension and is not clearly defined, something along the lines of TRC plus 4ws results in active safety.

UZZ32 do apply the brakes to different wheels depending on the situation and can be used at high speed to keep the car from sliding out of control, generally by braking he inside wheel to help the car pull through a turn which is exactly what ESP does on modern cars.

The problem with the outside wheel locking up only seems to happen in certain circumstances and I agree is appears to be some sort of bug.

The article in wheels magazine summed ESP up well when they tested a selection of cars and performed a number of different tests.
Every car in every test except one test was worse off from the drivers perspective, time to complete the test and the speed at which the test was done with ESP turn on.

The drivers all said they would much rather not have ESP except for the one situation which allowed them to push the car beyond what was normally physically possible without completely loosing control.
Kyle Wathen
DieHard
Vic
JZZ30 Manual GT-T

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Tuesday, December 01, 2009 - 09:45 am, by:  Kyle Wathen (Cspot) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


David Vaughan wrote on Monday, November 30, 2009 - 09:55 pm:

Kyle, on my experience I disagree with that. I think the TRC on a Soarer sucks in any respect except keeping you safe, killing motive force for an agonisingly long time compared with systems on later cars with more sporting pretensions.




No doubt it wouldn't compare to later systems, but when putting down 200+rwkw in the wet you really have to feather the accelerator,when I had the auto I preferred to just push the accelerator to the floor and let TRC sort it out on slippering surfaces.

Sure it held it back but still quicker than wheel spinning up the road without TRC on :-)
Damian Ware
Goo Roo
Victoria
UZZ32

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Tuesday, December 01, 2009 - 10:10 am, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Kyle Wathen wrote on Tuesday, December 01, 2009 - 09:45 am:

you really have to feather the accelerator,when I had the auto I preferred to just push the accelerator to the floor and let TRC sort it out on slippering surfaces




I assume you take the same approach with the brake pedal and ABS...

One of the important skills in driving is throttle control and the ability to balance a car and accellerate efficiently without loosing control.

Just relying on TRC is not a good idea and certainly not remotely good driving practice.
Damian Ware
Goo Roo
Victoria
UZZ32

Posts: 1218
Reg: 10-2005

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Tuesday, December 01, 2009 - 08:55 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Been thinking about the above today and in regards to the micro and ESP. It is likely they are running a faster set timing interrupt in there code that checks the data which may be faster than the sensor output at low speed and slower than the sensor output at high speed.

In the event an error in the sensors ie loss of control is determine a corectional adjustment would be made by winding up a control loop. This would happen as a small increment over a large number of cycles. The driver might not feel this until 10 cycles later if the interrupt loop was running at 100Hz with 10 cycles to result in a noticeable change in the output it could be a 10Hz pulsing effect that the driver would feel.

If the control loop was faster to respond ie a greater increment it might go out of control or activate when not required which for a safety device would be a serious hazzard. This could be why there is a sluggish response combined with the speed of the available hardware when the system was developed.

Does anyone else have any thoughts?
Kyle Wathen
DieHard
Vic
JZZ30 Manual GT-T

Posts: 890
Reg: 02-2007

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Friday, December 04, 2009 - 11:35 am, by:  Kyle Wathen (Cspot) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Damian Ware wrote on Tuesday, December 01, 2009 - 10:10 am:

I assume you take the same approach with the brake pedal and ABS...

One of the important skills in driving is throttle control and the ability to balance a car and accellerate efficiently without loosing control.

Just relying on TRC is not a good idea and certainly not remotely good driving practice.




Not at all, my current soarer is - manual, no TRC, no ABS. I know the dynamics required to properly control the car.

I'm just lazy when I had a TRC equipped daily driver.

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