09-01-2014, 02:00 AM | #1 |
Drives: 2014 black zl1 Join Date: May 2014
Location: PA
Posts: 33
|
magnetic ride ptm improvements?
I had an idea regarding the magnetic ride suspension and it's effects on the ZL1's handling and was wondering what you guys thought about this idea.
Have you noticed how bikes lean into the turns during corner maneuvers? We'll I was hoping if it were possible to make the car do the same by electronically altering the shock stiffness ratios independently from side to side of the vehicle during corner execution. For example imagine a Z making a fast right hand turn under the performance traction mode. The cars natural response is to want to roll to the left, hence the use for the anti-roll bars etc. Now say if the outer two left shocks were at their max levels and the two inner shocks were in their soft settings causing the car to lean into the turn by a few degrees do you think this will make the handling even greater? The system will be disable during normal driving and activated during the PTM driving modes, or both if the user desires. Please share your thoughts on this. |
09-01-2014, 06:43 AM | #2 |
Drives: 2013 ZL1 A6 Camaro, 2015 C7 A6 Z51 Join Date: Apr 2014
Location: Oklahoma
Posts: 396
|
the problem is that a bikes tire is rounded so you still keep a good chunk of the side of the tire in the corners on a bike, a car's tire is not designed that way, you couldn't get the car tire to respond / handle the same way.
__________________
Roto-Fab CAI, Texas Speed Headers, Texas Speed X-Pipe, Texas Speed LS3-B Blower Cam, Metco 9.10" Crank Pulley, Metco 2.5 Upper Pulley, ID 850 Injectors, LPE Ported Throttle Body, Alky Control Methanol kit, E2 Catch Can, 610HP / 608 Torque.
|
09-01-2014, 09:48 AM | #3 |
Drives: 2013 ZL1 Join Date: Oct 2013
Location: Nor Cal
Posts: 481
|
The magnetic ride control does not change spring stiffness.. just dampening.. could never happen..
It does not effect ride height what so ever in any way and could never effect the way a car leans.. it would have to be a pressurized system like old air shocks to effect ride height in the least.
__________________
2013 Silver ZL1
|
09-01-2014, 10:20 AM | #4 |
Drives: 2013 Camaro ZL1 Join Date: Dec 2012
Location: Dallas, Texas
Posts: 2,155
|
The reason a motorcycle/bicycle is leaning is to counteract the gyroscopic effect. Try not leaning and feel the bike naturally want to "sit up" Also evident by the small contact patch of the tire when leaning at an angle.
|
09-01-2014, 10:52 AM | #5 |
Go Cougs!
|
Here is a great article by Car and Driver. Mercedes just did what the OP describes and the reactions were not to positive. They call it magic body control...
http://www.caranddriver.com/news/mer...-system-driven |
09-01-2014, 03:53 PM | #6 |
Drives: 2014 black zl1 Join Date: May 2014
Location: PA
Posts: 33
|
Actually Porsche has a similar feature but they use a hydraulic system to properly set the car up at corner entry. Allowing the car to take the turn a little bit faster. Kind of an active anti roll bar.
I figured if the vehicle was properly setup just prior to corner entry and then gradually evens out on exit it could make for a faster turn. It would be like there was an embankment, except there is none but just that the vehicle will set itself up that way. Cars will carry more speed when the road is banked. I just thought it was something that could be done but I guess it will not work with the cars system. It just looks like manufacturers such as porshe and mercedes are starting to incorporate this into their vehicle dynamics. I figured maybe GM could do something similar. |
09-01-2014, 07:00 PM | #7 |
Drives: 02 Z06, 95 Trans Am, 2012 ZL1 Join Date: Mar 2012
Location: Southeast
Posts: 1,838
|
The tires actually do lean into a turn. Research what Caster is. And "camber gain"
__________________
Bryan 2018 ZL1 M6
|
09-01-2014, 07:56 PM | #8 | |
Drives: 2014 black zl1 Join Date: May 2014
Location: PA
Posts: 33
|
Quote:
|
|
09-02-2014, 12:08 AM | #9 |
Drives: 69 Chevelle SS396 2013 ZL1 Join Date: Mar 2010
Location: West
Posts: 700
|
Stagger in the tires would do it, like a sprint car turning left or a coffee cup rolling on the ground in circles. Not so good for left and right cornering though.
A bike leans to counteract the gyro effect of a rotating mass, the wheel. It wants to stand straight up. Pull the bars right momentarily to turn left and vice versa. Four wheels do it with caster and camber and anti-roll aids.
__________________
|
09-02-2014, 12:54 AM | #10 |
Account Suspended
Drives: none Join Date: Oct 2012
Location: Sydney Australia
Posts: 571
|
Would be good if you could hack the system for 90/10 shocks and then use it at the drags.
Antaeus Labs Last edited by GenF-GTS; 09-06-2014 at 02:26 AM. |
09-02-2014, 02:02 AM | #11 | |
1st Civ. Div.
Drives: Camaroless for now...RIP "Big SexZ" Join Date: Dec 2007
Location: Savannah, Ga
Posts: 2,726
|
GM did some development work decades ago with Lotus on an active suspension.
http://www.superchevy.com/features/0...?__federated=1 Quote:
Read more: http://www.superchevy.com/features/0...#ixzz3C8kIyL8B
__________________
Swift....Silent....Deadly
Last edited by RLHMARINES; 09-02-2014 at 02:18 AM. |
|
09-02-2014, 07:30 AM | #12 |
Drives: 2014 black zl1 Join Date: May 2014
Location: PA
Posts: 33
|
Wow, that was a pretty good article. I hope they make it happen in the gen ZL1 and z28. I believe the technology is now available to make it work.
Thank you RLHMARINES. |
|
|
|
|