Active Aero for the C8
03-09-2018, 11:05 AM
#1
Drifting
Thread Starter
Active Aero for the C8
i think that this can be put to very good use. We have seen the Z06 suffer from too much aero downforce in many track tests.
here's my thoughts for the C8
1:when your in track mode and turn the steering wheel, the computer should activate the spoilers to induce more downforce. as you are going into a turn. then ease up on the excessive downforce into the straits.
2: go one step further and make this tunable with the drive mode selector and even overrideable. So it all integrates with the MSRC.
GM can even offer a programmable mode that is compatible with the track you are running since it will know all the turns and proactively tune the downforce for the specific turn in the specific track.
That would be impressive for the C8
here's my thoughts for the C8
1:when your in track mode and turn the steering wheel, the computer should activate the spoilers to induce more downforce. as you are going into a turn. then ease up on the excessive downforce into the straits.
2: go one step further and make this tunable with the drive mode selector and even overrideable. So it all integrates with the MSRC.
GM can even offer a programmable mode that is compatible with the track you are running since it will know all the turns and proactively tune the downforce for the specific turn in the specific track.
That would be impressive for the C8
Popular Reply
03-10-2018, 06:48 PM
Melting Slicks
Drove many cars with active aero, after reading more on GM patent technology it seams to have features similar to the Huaryra moving flaps. If anything like this wow that would be impressive technology. Video is only to shows how this technology is helpful and flexible verses fixed wings for downforce. Makes sense why GM would want it on the ME.
03-09-2018, 11:35 AM
#2
Safety Car
Believe that this is already in process based on GM’s March 23, 2017 filed patent for such a system. Even through the drawings with those submittals showed a C7, most openly speculated it was for the ME. Thanks to Keith Cornett at CorvetteBlogger for the below article and patent pictures.
Last edited by elegant; 03-09-2018 at 11:41 AM.
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XC6VETTE (03-10-2018)
03-09-2018, 11:46 AM
#3
Safety Car
The closer I read that patent description, the more I am convinced that at least the “height reading sensor” components could be somehow coupled to an ME “front axle lift system” (a la Porsche and others @ around $2,500).
Couple the patent application description with someone “reading” one of the CAD drawings and concluding that it showed an attachment point for a hose or tube for raising the front axle, the more excited I am about for this potential, related option.
GM, bring them both on please!
Couple the patent application description with someone “reading” one of the CAD drawings and concluding that it showed an attachment point for a hose or tube for raising the front axle, the more excited I am about for this potential, related option.
GM, bring them both on please!
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03-09-2018, 09:56 PM
#5
Believe that this is already in process based on GM’s March 23, 2017 filed patent for such a system. Even through the drawings with those submittals showed a C7, most openly speculated it was for the ME. Thanks to Keith Cornett at CorvetteBlogger for the below article and patent pictures.
03-10-2018, 06:08 PM
#6
Le Mans Master
The <original> McLaren F1 had movable underbody aerodynamics and about 650 HP.
The LeManns car suffered without underbody aerodynamics and a wing with only 600 HP.
Bugatti had a movable rear wing that deploys under braking (and can't be used due to race rules on tracks (Race not HPDE)).
So there is lots of room for experimentation, but the biggest advancement would be the underbody aerodynamics one gets from diffusers and underbody air channels--bigger than those huge wings seen recently.
The LeManns car suffered without underbody aerodynamics and a wing with only 600 HP.
Bugatti had a movable rear wing that deploys under braking (and can't be used due to race rules on tracks (Race not HPDE)).
So there is lots of room for experimentation, but the biggest advancement would be the underbody aerodynamics one gets from diffusers and underbody air channels--bigger than those huge wings seen recently.
03-10-2018, 06:48 PM
#7
Melting Slicks
Drove many cars with active aero, after reading more on GM patent technology it seams to have features similar to the Huaryra moving flaps. If anything like this wow that would be impressive technology. Video is only to shows how this technology is helpful and flexible verses fixed wings for downforce. Makes sense why GM would want it on the ME.
Last edited by fasttoys; 03-11-2018 at 12:53 AM.
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03-10-2018, 08:03 PM
#8
Safety Car
From the U.S. Patent and Tradmark Office, as excerpted by the Society of Automotive Engineers, here are a few more details about GM’s last March 23rd “active aero” application.
http://articles.sae.org/15523/
Originally Posted by articles.sae.org
The best evidence of what’s afoot is GM’s U.S. Patent Application 2017/0080770 A1 dated March 23, 2017. The document is titled Vehicle Ride-Height Determination For Control of Vehicle Aerodynamics.
All six of the annotated illustrations in this patent show a current Corvette Stingray adorned with “a plurality of adjustable aerodynamic elements and various sensors mounted to the vehicle body…” Background statements clarify the reasons for this pursuit: “to reduce drag and wind noise…and to prevent undesired lift forces and other causes of aerodynamic instability at high speeds” and “to achieve down force in vehicles in order to improve vehicle traction, high speed stability, and cornering.”
The list of adjustable devices includes a spoiler, an air dam, a shutter with moveable louvers, a specialized wing, an airfoil and a dive plane. The patent description says that these devices may be located at both ends of the vehicle and be adjusted by an electric motor or other types of actuators. In addition to an accelerometer to quantify acceleration and braking dynamics, laser and ultrasonic sensors are noted for ride height determination.
To vary the position of the aero elements relative to the body, electric, mechanical, electro-mechanical, and pneumatic actuators are specified plus “any other type appropriate for the specific packaging, efficiency, and cost constraints…” CPUs responsible for managing ride-height, body pitch angle, and aerodynamic component settings are mentioned.
All six of the annotated illustrations in this patent show a current Corvette Stingray adorned with “a plurality of adjustable aerodynamic elements and various sensors mounted to the vehicle body…” Background statements clarify the reasons for this pursuit: “to reduce drag and wind noise…and to prevent undesired lift forces and other causes of aerodynamic instability at high speeds” and “to achieve down force in vehicles in order to improve vehicle traction, high speed stability, and cornering.”
The list of adjustable devices includes a spoiler, an air dam, a shutter with moveable louvers, a specialized wing, an airfoil and a dive plane. The patent description says that these devices may be located at both ends of the vehicle and be adjusted by an electric motor or other types of actuators. In addition to an accelerometer to quantify acceleration and braking dynamics, laser and ultrasonic sensors are noted for ride height determination.
To vary the position of the aero elements relative to the body, electric, mechanical, electro-mechanical, and pneumatic actuators are specified plus “any other type appropriate for the specific packaging, efficiency, and cost constraints…” CPUs responsible for managing ride-height, body pitch angle, and aerodynamic component settings are mentioned.
http://articles.sae.org/15523/
Last edited by elegant; 03-10-2018 at 08:05 PM.
03-12-2018, 12:59 PM
#9
Drifting
Thread Starter
Drove many cars with active aero, after reading more on GM patent technology it seams to have features similar to the Huaryra moving flaps. If anything like this wow that would be impressive technology. Video is only to shows how this technology is helpful and flexible verses fixed wings for downforce. Makes sense why GM would want it on the ME.
https://www.youtube.com/watch?v=GMY4l9JIQmM
https://www.youtube.com/watch?v=GMY4l9JIQmM
03-13-2018, 03:31 PM
#10
Safety Car
Believe that this is already in process based on GM’s March 23, 2017 filed patent for such a system. Even through the drawings with those submittals showed a C7, most openly speculated it was for the ME. Thanks to Keith Cornett at CorvetteBlogger for the below article and patent pictures.
fig 5/ 45
fig 3 and 4/ 45.
C5R GT1 hood
My biggest beef with the C5,6 and 7 suspension geometry is displayed in Fig. 2. The wheel stays in neg. camber during the entire travel from trounce to full droop which screws up grip on the inside wheels. It should be positive in droop for max.grip.
figure 2 c7 front geometry c7
C7 neg camber in droop
c7 upper a arm just wrong
c7 daylight inside wheel in a turn Check out diffuser. Front and rear diffuser work well with active ride height control with much less drag.
Front splitter diffuser
Last edited by Shaka; 03-13-2018 at 08:14 PM.
03-15-2018, 11:43 AM
#11
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Very interesting design and would be a nice addition to the Vette.