Raion-Fox wrote:
You can disable TCS, but not ESC altogether, from what I have understood. ESC consists of several parts including skid control computer, yaw sensors and lateral acceleration sensors
You are referring to two separate systems. "Traction control" reduces motor output to prevent wheelspin, and exists on some older cars with ABS (mid 90s-early 2000s). My trans am had this. Because the APP was cable driven it would literally kick the gas pedal back at you
"ESC", "DSC", etc (everybody has their own name for it) modulates brake pressure to individual wheels to prevent wheelspin (this is often an improvement over TC because it can modulate each driven wheel separately) and also typically works to prevent oversteer.
There is one module which contains your "several parts". This is a Bosch unit on FCA VF (promaster/ducato) but they all work the same. Every carmaker has their own secret sauce "tuning". There is a microcontroller (a pretty beefy 32-bit unit) and 3 axis MEMS accelerometer and gyroscope. It reads the wheelspeed sensors. It can send a message to ECU to cancel motor torque. There is a pressure pump (like ABS pump) and proportional valve for each wheel (whereas ABS was only one "channel" of control) so it can activate one wheel at a time. Some FWD cars have one valve for both rear wheels.
Some tunes cut in before you even notice any slipping. The promaster is like this (well, duh. It's a little scary being sideways in a very tall 7000# cargo van) Some let you get darn near sideways. Mazda tends to strike a nice balance of (just barely) staying out of your way. You get a bit of oversteer, more than any sane person would want, but can't do anything silly without turning it off.
Anyways, if there is no button or menu to turn it off on the dash, you can always pull out the fuse or unplug the thing (my hand is on the plug...). You will get a warning light regardless. For some cars you will lose the brake booster pump as well, which is only an issue for EV/HEV and forced induction.
They tend to range between $200-$600 at the dealer parts counter.
It also enables one of my favorite features: the hill holder. If the car is stopped facing uphill (on the miata, it also works when downhill and the transmission is in reverse. But not the Ducato. Promaster comes with an automatic transmission so it's still there but fairly redundant) it will keep the car from rolling backwards until it detects forward motion and releases the brake.
This makes it a great car for teaching new drivers I've taught 2 people with the miata so far and it really helps with all of the hills around here.
There are some other neat tricks: the challenger (not my SXT of course, but, you know, the hellcat version) have a line-lock feature so you can heat up the tires for drag racing. I'm sure the mustang and camaro also offer this on their hot-rod models. Some cars (focus ST and other cars like that) use it as a sort of LSD. Which is why many of these hot hatches have so much brake dust on their wheels all the time.
dexter1 wrote:
To Raion-Fox and Guardian452, please stay on topic or move to another thread (i can split it for you)
fine by me
dexter1 wrote:
and please refrain from making personal comments.
Sorry
dexter1 wrote:
I know both of you feel strongly about the subject of cars and automotive technology, which is absolutely fine. but i am not inclined to make a separate forum-section about automotive tech on this forum
Oh god, please not another auto rag website.