Im in love with the ACC - Page 5 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 -

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #49  
Old 10-09-2015, 09:18 PM
Member
 
Join Date: May 2013
Posts: 148
Thanks: 0
Thanked 10 Times in 9 Posts
Rep Power: 1502
2zero12wk2 is on a distinguished road
Quote:
Originally Posted by perpster View Post

Page 202 of Owner's Manual:

"Overtake Aid

When driving with ACC engaged and following a target
vehicle, the system will provide an additional acceleration
to assist in passing vehicles in front. This additional
acceleration is triggered when the driver utilizes the left
turn signal. In locations with left hand drive traffic,
Overtake Aid is active only when passing on the left
hand side of the Target vehicles.

When a vehicle goes from a location with left hand drive
traffic to a location with right hand drive traffic, the ACC
system will automatically detect traffic direction. In this
condition, Overtake Aid is active only when passing on
the right side of the Target vehicle. This additional
acceleration is triggered when the driver utilizes the right
turn signal. In this condition the ACC system will no
longer provide Overtake Aid on the left side until it
determines that the vehicle has moved back to a location
with left hand drive traffic."

Nice....there it is.

Reply With Quote
Sponsored Links
Advertisement
 
  #50  
Old 10-09-2015, 10:38 PM
Member
 
Join Date: Feb 2011
Posts: 853
Thanks: 23
Thanked 96 Times in 72 Posts
Rep Power: 3041
Snipe315 has a reputation beyond repute
Re: Im in love with the ACC

Quote:
Originally Posted by TJD1 View Post
I opted to not get the ACC on my '14 GC. I don't really use CC and didn't think it was worth the added expense (even with the accident avoidance).

One thing I've noticed when travelling on the highway in heavy (but moving) traffic is cars with ACC tend to tailgate. If the traffic ahead slows down (even slightly), an aware driver not using cruise control (like myself) will ease off on the accelerator in anticipation of the need to slow down. The driver using ACC in this same situation will wait for the ACC to kick in, and since the car is already tailgating, will need to apply the brakes. As soon as the brake lights go on, all cars behind will also react and hit the brakes in a reactionary measure. This actually causes unneeded/exaggerated slowdowns to the flow of traffic.

Drivers should not have to use the brakes to maintain distance when travelling on the highway at highway speeds.

Sorry but You are Wrong.

Since you don't have ACC, I can understand you not fully understanding how it works.

1. Vehicles with ACC do not tailgate. They maintain the distance set by the driver. That distance usually isn't shorter then what drivers without ACC maintain. In fact, it is often wider to account for possible electronic mishaps.

2. Drivers using ACC do not have to hit their brakes when traffic slows. Nor does the ACC system always apply the brakes to slow down. It also reduces engine power to slow (just like a human driver does). And while it might not be able to anticipate driving patterns as well as a human being, it does pretty good.

3. Any drivers that react by braking just because they see a vehicle ahead hit their brakes is NOT PAYING ENOUGH ATTENTION to the road & the conditions around them. Seeing a vehicle ahead hit its brakes should be noticed, but you should also notice if it is slowing suddenly (hard braking) or just using their brakes to maintain distance.


Oh... and exactly HOW would you know whether a vehicle has a system similar to ACC, or if the driver is actually using it?!?


__________________
2015 WK2 Overland 4x4 V8, Granite Exterior/Black Interior, ORA II, Advance Tech Package, Rear Seat DVD/Blu-ray
Reply With Quote
The Following User Says Thank You to Snipe315 For This Useful Post:
  #51  
Old 10-09-2015, 11:47 PM
silvermax04's Avatar
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: Feb 2013
Posts: 3,393
Thanks: 259
Thanked 568 Times in 439 Posts
Rep Power: 30365
silvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond repute
Quote:
Originally Posted by TJD1 View Post
I opted to not get the ACC on my '14 GC. I don't really use CC and didn't think it was worth the added expense (even with the accident avoidance).

One thing I've noticed when travelling on the highway in heavy (but moving) traffic is cars with ACC tend to tailgate. If the traffic ahead slows down (even slightly), an aware driver not using cruise control (like myself) will ease off on the accelerator in anticipation of the need to slow down. The driver using ACC in this same situation will wait for the ACC to kick in, and since the car is already tailgating, will need to apply the brakes. As soon as the brake lights go on, all cars behind will also react and hit the brakes in a reactionary measure. This actually causes unneeded/exaggerated slowdowns to the flow of traffic.

Drivers should not have to use the brakes to maintain distance when travelling on the highway at highway speeds.
ACC does not tailgate in the least my biggest complaint about ACC is that it does not follow close enough even at the tightest setting. The gap it leaves is too big allowing other cars to cut you off and cut in during heavier volume. I know it leaves large gaps for safety but I would prefer it be more aggressive them it currently is. The ACC eases off the gas the same way a human does when approach a car it does not come up hard on a car and then hit the brakes. If the car in front slams on the brakes it will do the same and do what it needs to to keep the set distance. It's a good system works well just leaves too large of a gap between cars.
Reply With Quote
  #52  
Old 10-10-2015, 12:16 AM
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Dec 2013
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1154
TJD1 is on a distinguished road
Re: Im in love with the ACC

Quote:
Originally Posted by Snipe315 View Post
Sorry but You are Wrong.

Since you don't have ACC, I can understand you not fully understanding how it works.

1. Vehicles with ACC do not tailgate. They maintain the distance set by the driver. That distance usually isn't shorter then what drivers without ACC maintain. In fact, it is often wider to account for possible electronic mishaps.

2. Drivers using ACC do not have to hit their brakes when traffic slows. Nor does the ACC system always apply the brakes to slow down. It also reduces engine power to slow (just like a human driver does). And while it might not be able to anticipate driving patterns as well as a human being, it does pretty good.

3. Any drivers that react by braking just because they see a vehicle ahead hit their brakes is NOT PAYING ENOUGH ATTENTION to the road & the conditions around them. Seeing a vehicle ahead hit its brakes should be noticed, but you should also notice if it is slowing suddenly (hard braking) or just using their brakes to maintain distance.


Oh... and exactly HOW would you know whether a vehicle has a system similar to ACC, or if the driver is actually using it?!?


Regarding your first point: ACC vehicles do not tailgate? Humph. From earlier posts in this thread (emphasis mine)...

Quote:
Originally Posted by protect1989 View Post
3 following distances. There are three buttons that control the ACC on the right side of the steering wheel. The far left button turns on/sets the ACC, the other two buttons control the distance between your vehicle and the vehicle infront of you.

I keep mine on the lowest possible distance (one bar) and find it to be plenty responsive. It keeps about a car distance or so inbetween vehicles. Anything more and you have people constantly jumping into that empty space thus causing your ACC to brake. You just keep going slower and slower as more cars fill the void.


Quote:
Originally Posted by overlanding View Post
Attachment 59477 My '15 Overland Pentastar V6 has 4

It will definitely ride ass, which kinda surprised me at first. My other vehicles with this feature would never get very close.

Quote:
Originally Posted by mswlogo View Post
I always have mine max distance and feel it's often still too close at some speeds.

Quote:
Originally Posted by SaintGermain View Post
I agree- I set mine at the 3rd or 4th bar. I don't mind some cars cutting in since the system reacts pretty good and brakes in time. I find the closest setting pushes me at the edge of the seat because it feels rather unnerving watching my car coast straight behind another car and braking much closer than what I would do. It's the same almost helpless feeling I get when someone else is driving- I would normally brake a little early rather than the last minute. In rainy, slippery or less than ideal driving conditions, having that extra distance gives me an extra degree of reassurance in the event the car needs to stop.

Regarding your second point: I will add a clarification on what I intended to say... I should've typed that the ACC system activates the brakes when the car gets too close. Here's the rewrite:

If the traffic ahead slows down (even slightly), an aware driver not using cruise control (like myself) will ease off on the accelerator in anticipation of the need to slow down. The driver using ACC in this same situation will wait for the ACC to kick in, and since the car is already tailgating, the ACC system will need to apply the brakes.

I also never said the ACC always applies the brakes to slow down.


Regarding your third point: I totally agree with your first sentence. Your last sentence, not so much... when traveling on the highway (my original post was regarding highway speeds) with the normal steady speed flow of traffic there is absolutely no need to apply the brakes to maintain distance. Anyone using their brakes in that scenario is too close (regardless of manual throttle, CC or ACC).

Regarding your last comment: Next time you're on a long highway drive with heavy traffic flow (moving at or greater than the speed limit), pick out some of the high end cars (e.g. MB, BMW, Audi, or even high-end model JGC), pull up alongside and see if the blind spot warning indicator lights up on the side view mirror - most cars that have that also have ACC. If they do, follow it for a bit. Watch for a slowdown ahead like I originally described and then see what happens. But you argue how I would know the car has ACC? Drive around the front and look for the sensor below the bumper (better to have a passenger do that unless you want to put full faith in your accident avoidance feature).


I think the progression in car technology is great and I'm really hopeful that we will someday soon have fully automated/driverless highway driving. That'll have a tremendous impact on highway safety, fuel efficiency and traffic reduction. In addition to the technical hurdles, we just have to solve the insurance/liability issue (e.g. Who's fault is it if the autopilot gets into a car accident?).
Reply With Quote
  #53  
Old 10-10-2015, 12:19 AM
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Dec 2013
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1154
TJD1 is on a distinguished road
Re: Im in love with the ACC

Quote:
Originally Posted by silvermax04 View Post
ACC does not tailgate in the least my biggest complaint about ACC is that it does not follow close enough even at the tightest setting. The gap it leaves is too big allowing other cars to cut you off and cut in during heavier volume. I know it leaves large gaps for safety but I would prefer it be more aggressive them it currently is. The ACC eases off the gas the same way a human does when approach a car it does not come up hard on a car and then hit the brakes. If the car in front slams on the brakes it will do the same and do what it needs to to keep the set distance. It's a good system works well just leaves too large of a gap between cars.
Interesting. Others in this thread seem to think the following distance is too short.

I'm sure future iterations of ACC will close the gap. I think that once we get car-to-car communication (think mesh network), then you could theoretically run much shorter following distances as the car will have greater visibility to what is happening much further ahead (probably further than a driver can see).
Reply With Quote
  #54  
Old 10-10-2015, 12:41 AM
Member
 
Join Date: Jun 2011
Posts: 128
Thanks: 13
Thanked 31 Times in 22 Posts
Rep Power: 2170
Paul 92688 is on a distinguished road
Re: Im in love with the ACC

Quote:
Originally Posted by silvermax04 View Post
ACC does not tailgate in the least my biggest complaint about ACC is that it does not follow close enough even at the tightest setting. The gap it leaves is too big allowing other cars to cut you off and cut in during heavier volume. I know it leaves large gaps for safety but I would prefer it be more aggressive them it currently is. The ACC eases off the gas the same way a human does when approach a car it does not come up hard on a car and then hit the brakes. If the car in front slams on the brakes it will do the same and do what it needs to to keep the set distance. It's a good system works well just leaves too large of a gap between cars.
Interesting... The ACC leaves a good gap in my opinion. I drive in Los Angeles (I405) rush hour traffic. I keep it on setting 3 and it is not too close and not too far in my experience. As far as not preventing people from getting in front of you, that is going to happen unless you are very close to the car you are trailing, for my comfort, closer than I want to follow regardless of it being me or the ACC doing the following.

Paul
Reply With Quote
  #55  
Old 10-10-2015, 12:45 AM
silvermax04's Avatar
Premium Member
My Jeep: 2014 5.7L WK2
 
Join Date: Feb 2013
Posts: 3,393
Thanks: 259
Thanked 568 Times in 439 Posts
Rep Power: 30365
silvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond reputesilvermax04 has a reputation beyond repute
The ACC following distance is fully adjustable by the driver and has several distance settings you can increase and decrease the distance to your liking. I have mine set on the tightest closest setting and to me that is still too much of a gap. Setting it to the farthest setting is way back there in my opinion so I don't see how that setting could be considered close in the least but I guess everyone has their own opinion on what close is.
Reply With Quote
  #56  
Old 10-10-2015, 09:33 AM
Premium Member
 
Join Date: Aug 2013
Location: Boston
Posts: 1,794
Thanks: 42
Thanked 213 Times in 165 Posts
Rep Power: 76853
mswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond reputemswlogo has a reputation beyond repute
Re: Im in love with the ACC

The ACC is adjustable but I wish I could set max distance a bit further.
ACC does use more braking and does get slightly lower MPG.

But the Pros outweight the Cons.

There are situations it can be dangerous around town because it doesn't do stationary objects.
__________________
07-24-2017 Summit 3.6L Velvet Red W/Black & Brown Int
Tires: OEM 20"/Nokian 18"
Situational awareness: Valentine One with V1Driver on IOS
Reply With Quote
  #57  
Old 10-10-2015, 10:17 AM
Jim_in_PA's Avatar
Super Moderator

My Jeep: 2012 5.7L WK2
 
Join Date: Jul 2012
Location: SE PA (central Bucks County)
Posts: 4,459
Thanks: 807
Thanked 622 Times in 498 Posts
Rep Power: 96263
Jim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond reputeJim_in_PA has a reputation beyond repute
Garage
Re: Im in love with the ACC

I find that the available following distances for AAC are more than adequate. I often run at "1" which is the closest and cuts down on folks "cutting in line", but will bump it to further on certain types of roads. Following distance also seems to be speed sensitive. It's a great feature and will be "standard" on any other vehicle I buy in the future until something better comes along.
__________________
2012 GC Overland Summit - Winter Chill with New Saddle interior. 5.7L HEMI V8 - Pirelli Scorpion Verde Plus "shoes" - LED fogs and DRLs



Day-job...Telecom Technical Sales
Avocations...Woodworking, Equestrian, Food, Photography
Reply With Quote
  #58  
Old 10-10-2015, 10:27 AM
Member
 
Join Date: Apr 2014
Posts: 547
Thanks: 158
Thanked 140 Times in 98 Posts
Rep Power: 2269
BubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond reputeBubbaATL has a reputation beyond repute
Re: Im in love with the ACC

Quote:
Originally Posted by mswlogo View Post
...
There are situations it can be dangerous around town because it doesn't do stationary objects.
But in combination with the new Full-speed Forward Collision Warning-Plus on my 2016, I'll be able to use it in the parking garage, right?
Reply With Quote
  #59  
Old 10-10-2015, 10:32 AM
MDBones's Avatar
OVERLAND HIGH ALTITUDE
My Jeep: 2016 3.6L WK2
 
Join Date: Mar 2014
Location: Wisconsin's West Coast
Posts: 3,592
Thanks: 630
Thanked 613 Times in 503 Posts
Rep Power: 10610
MDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond reputeMDBones has a reputation beyond repute
Garage
Re: Im in love with the ACC

I understand that some people like (or love) the ACC. Personally, I don't care for it and would rather drive the car myself.

I don't do that much open road / light traffic driving to begin with where this could be any kind of benefit to me and I can't really justify the cost of an option that strikes me as something I'd have to liken to as two cats in a gunnysack fighting each other based on some of the descriptions I read on how it operates.

__________________
http://www.jeepgarage.org/members/54562-albums357-picture4289.png
Reply With Quote
  #60  
Old 10-10-2015, 01:41 PM
NetworkTV's Avatar
Member
My Jeep: 2015 3.6L WK2
 
Join Date: Apr 2015
Posts: 833
Thanks: 3
Thanked 191 Times in 144 Posts
Rep Power: 6969
NetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond reputeNetworkTV has a reputation beyond repute
Re: Im in love with the ACC

Quote:
Originally Posted by perpster View Post
The vehicle is smarter than I am!

And, I didn't realize it accelerates to overtake on one side only (for a given side of the road traffic setup).
Since you're not supposed to be deliberately passing on the right in the US, changing to the right lane could be potentially you turning off an exit ramp or moving to the right lane to prepare to do so - or even let someone pass you.
__________________
2015 Jeep Grand Cherokee Limited
Deep Cherry Red Crystal Pearl Coat

Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
ACC - upgrading to ACC with stop? Sequoia Grand Cherokee - WK2 - 3 01-30-2014 08:07 AM
LOVE LOVE LOVE my 13' Jeep SRT! Scottina06 Grand Cherokee SRT - WK2 29 06-19-2013 06:41 PM
Advanced Warning/ACC Group Question rb3wreath Grand Cherokee - WK2 - 30 05-29-2011 08:58 AM
radar detectors and ACC rdalcanto Grand Cherokee - WK2 - 5 12-10-2010 06:29 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 03:21 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.