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Open Roads Forum  >  Tow Vehicles

 > Onboard Tongue weight

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BurbMan

Noblesville, IN

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Posted: 04/30/21 08:01am Link  |  Quote  |  Print  |  Notify Moderator

Interesting article from Truck Camper Magazine on the new F-150s that will have built in weight sensors. You can get an accurate payload number from the infotainment screen, your smartphone app, or from the tail lights. The tail lights have 4 "bars" that light up like a battery gauge that tell you from the outside when you are loading the truck when it has reached 25%, 50%, 75% and 100% of rated payload. Once you exceed payload, the tail lights blink.

The truck will also give you real time readouts on trailer tongue weight also.

TC magazine opines that this function will be added to SuperDutys next year and that other mfrs will follow suit.

I wonder if there will be a way to override the blinking tail lights when running overloaded? It's not a stretch to picture this tied into the PCM so that the truck won't start if it's overloaded, or maybe is limited to 5mph "limp" mode when loaded over the GVWR.


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TurnThePage

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Posted: 04/30/21 08:22am Link  |  Quote  |  Print  |  Notify Moderator

If they tried to prevent driving with an overloaded condition, they would lose sales. One of those nasty 1s or 0s gets out of place and you're stuck where you sit.

They don't stop you from driving without a seatbelt.


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p220sigman

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Posted: 04/30/21 08:39am Link  |  Quote  |  Print  |  Notify Moderator

I don't think they would ever go with something that prevents the vehicle from running. But what I could see as more likely is it storing the info in the PCM and then if you come in for warranty work on the transmission, rear end, suspension, etc., them pulling the info and denying warranty because you were "abusing" the vehicle by driving outside of the design parameters.

Grit dog

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Posted: 04/30/21 09:20am Link  |  Quote  |  Print  |  Notify Moderator

How many sections of the forum are you going to post the same "news" in (after it's already been posted by someone else to boot)?


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BurbMan

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Posted: 04/30/21 09:25am Link  |  Quote  |  Print  |  Notify Moderator

TurnThePage wrote:

They don't stop you from driving without a seatbelt.


No, but the bell dings louder and louder until you give in...one mfr (I forget which one) disables the radio if you don't fasten your seatbelt.

IdaD

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Posted: 04/30/21 10:07am Link  |  Quote  |  Print  |  Notify Moderator

BurbMan wrote:

Once you exceed payload, the tail lights blink.


A literal wet dream for the weight police.


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BenK

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Posted: 04/30/21 10:53am Link  |  Quote  |  Print  |  Notify Moderator

There is no policing on these freebie forums...just opinions and those with a cautionary point...labeled with the derogatory "weight police"

Can see both benefits of not having to go to a weigh station and a recording for warranty purposes for the OEM

Agree, killing the engine would be unsafe...but going into the various limp modes a very real option for the OEM's to take


Posted this on another thread about this...wonder how they designed in high hysteresis and high enough set points to manage dynamic & shock loads.

Betcha tons of interactive communications with the other computer's and sensors...AKA "highly integrated"...which IMHO, becomes a nightmare to fix


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Lwiddis

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Posted: 04/30/21 11:33am Link  |  Quote  |  Print  |  Notify Moderator

p220 is right on point. "...more likely is it storing the info in the PCM and then if you come in for warranty work on the transmission, rear end, suspension, etc., them pulling the info and denying warranty..."


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BurbMan

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Posted: 04/30/21 01:45pm Link  |  Quote  |  Print  |  Notify Moderator

BenK wrote:

...wonder how they designed in high hysteresis and high enough set points to manage dynamic & shock loads.


Probably only reads with shifter in Park to avoid having to manage those issues. The rental truck shown here had a VERY loud buzzer that sounded to notify the driver the truck was overloaded...but it went off as soon as you shifted into Drive. Agree that at a minimum data will be tracked for warranty issues and possibly some sort of speed control for safety. Limp mode might be extreme.

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blt2ski

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Posted: 04/30/21 01:57pm Link  |  Quote  |  Print  |  Notify Moderator

Back in 2000 at a HS reunion, a friend of mine that was driving long haul, was going thru the Utah salt flats. Decided to see how fast his Kenworth could go. 110mph. 5 miles in neutral to slow back down to 60.
5-6 months later getting an oil change and service. Service tech came up to him scratching his head, truck computer says it hit 110 mph awhile back?!?!?
Anyway, none of us are non findable these days. Cell phones, pcm in vehicles, etc, all seem to have some sort of memory or locating device that can find that thing! Any of you had your auto locking car unlocked by emergency service?
And people don't want covid shot because they think a tracking device will be included.....

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