Welcome back! Global Positioning System - we use it daily to navigate around cities, find holiday spots, locate restaurants or take-away shops, or track suspicious activities of your spouses. GPS can also be used to calculate the speed of your vehicle. It's a very accurate, simple to set up, and relatively inexpensive method - and here's how it's done.
the problem is GPS only calculates speed relative to the satellite so not always accurate unless on 'level' ground. had numerous situations where the factory speedo reads the same in a hilly area, but because of the hills the GPS speed varies due to the car moving less distance via satellite view, despite travelling at the same actual ground speed. also, as you have mentioned, they can be sporadic in cities etc, which in many areas would be illegal to have a non operational speedometer.
Note that since this video was released, Haltech has added a "GPS Speed Input" option under "Main Source" and there is also a "GPS" option in the "Main Source" dropdown menu (not sure why you have to select the main source in two places?). HOWEVER... one critical piece of information that this video leaves out is that the Haltech ECU wont allow Cruise Control to function if a GPS Speed Input is selected! In fact, Cruise Control won't work with any undriven speed input. For example, selecting a front wheel speed input on a RWD car won't allow Cruise Control to work. Yet, there's nothing stopping you from assigning a GPS signal to a rear wheel speed input, and that will allow Cruise Control to work. It's all very odd and not clear why any of it is set up like this. It's also not documented anywhere, and it even took Haltech a month to figure it out.
Thanks Nigel I've been looking for this answer. I'm wondering is it as GPS might not be as a reliable signal as a sensor? It sounds safety related to me why they might not allow it. But if it was to be set up the way you suggest, is there anything Haltech might be able to do to disable that function?
@@garyegt what I've observed from trying the GPS speed sensor I have as a speed input is that it responds slowly to changes in speed. For example, I'll come to a complete stop and the GPS speed will still be counting down to zero. As a consequence, using it for cruise control results in it constantly overshooting and undershooting the desired speed by several KPH. Now, it may be the GPS speed sensor I'm using is just not suitable for this application. It's an older Veethree unit intended for boats, where changes in speed are going to be relatively slow compared with a car. Perhaps some of the newer automotive based GPS units will work better.
@@nigel_white yeah that's a great point, GPS speed takes a 2nd or 2 to update almost. I was looking at haltechs own GPS speed input but again, I wouldn't know how quickly it updates.
Scott forgot one of the main benefits of a GPS speed sensor. Knowing my car speed when I'm doing a 4 wheel burnout :) But seriously, allows better traction control on AWD vehicles.
So, by my understanding of this tutorial there is no dedicated option for GPS speed input that way you can do GPS speed vs Drivetrain overall for traction control? Or do we have to do a front speed sensor vs rear speed sensor for AWD traction control strategies? Maybe a option for the next update to allow 2 different overall speed inputs?
Can you setup the GPS to calibrate (fine tune) a wheel speed sensor. so you always have spedo even in a tunnel. And have acurite speed with diferent size wheels.
Thanks for the info. I have just got the elite 2500 and IC-7 dash and looking at options for a speed sensor. if i wire this gps through the ECU can the ECU then have cruise control? Thanks
If I use this to control fans by speed, on below X, off above X. Can it still have a temperature on/off control in case signal is lost and it goes to 0mph?
Could this be used in a master and slave setup for vehicle speed. Use gps speed for accuracy ect then change to a drivetrain sensor automatically if the unit looses gps signal
Might be a stupid question but can you hack the information as its using a sat? I just don't want to be on the stand in court and suddenly the cops pull a fast one... "We have retrieved these files from the haltech server which states on that night...."
The misconception is to say they "communicate" while gps only goes one-way. The module receives a time signal broadcast from satellites. That's it. Still cool tho
Love the in depth installation instructions and tips. Saves me from bothering y’all with direct messages!
Welcome back!
Global Positioning System - we use it daily to navigate around cities, find holiday spots, locate restaurants or take-away shops, or track suspicious activities of your spouses. GPS can also be used to calculate the speed of your vehicle. It's a very accurate, simple to set up, and relatively inexpensive method - and here's how it's done.
the problem is GPS only calculates speed relative to the satellite so not always accurate unless on 'level' ground. had numerous situations where the factory speedo reads the same in a hilly area, but because of the hills the GPS speed varies due to the car moving less distance via satellite view, despite travelling at the same actual ground speed. also, as you have mentioned, they can be sporadic in cities etc, which in many areas would be illegal to have a non operational speedometer.
Can you track your time laps in a circuit track?
would LOVE to see you guys take that GPS module and incorporate its positioning into the logging like AIM dashes for reviewing track data.
Note that since this video was released, Haltech has added a "GPS Speed Input" option under "Main Source" and there is also a "GPS" option in the "Main Source" dropdown menu (not sure why you have to select the main source in two places?). HOWEVER... one critical piece of information that this video leaves out is that the Haltech ECU wont allow Cruise Control to function if a GPS Speed Input is selected! In fact, Cruise Control won't work with any undriven speed input. For example, selecting a front wheel speed input on a RWD car won't allow Cruise Control to work. Yet, there's nothing stopping you from assigning a GPS signal to a rear wheel speed input, and that will allow Cruise Control to work. It's all very odd and not clear why any of it is set up like this. It's also not documented anywhere, and it even took Haltech a month to figure it out.
Thanks Nigel I've been looking for this answer. I'm wondering is it as GPS might not be as a reliable signal as a sensor? It sounds safety related to me why they might not allow it. But if it was to be set up the way you suggest, is there anything Haltech might be able to do to disable that function?
@@garyegt what I've observed from trying the GPS speed sensor I have as a speed input is that it responds slowly to changes in speed. For example, I'll come to a complete stop and the GPS speed will still be counting down to zero. As a consequence, using it for cruise control results in it constantly overshooting and undershooting the desired speed by several KPH. Now, it may be the GPS speed sensor I'm using is just not suitable for this application. It's an older Veethree unit intended for boats, where changes in speed are going to be relatively slow compared with a car. Perhaps some of the newer automotive based GPS units will work better.
@@nigel_white yeah that's a great point, GPS speed takes a 2nd or 2 to update almost. I was looking at haltechs own GPS speed input but again, I wouldn't know how quickly it updates.
Scott forgot one of the main benefits of a GPS speed sensor.
Knowing my car speed when I'm doing a 4 wheel burnout :)
But seriously, allows better traction control on AWD vehicles.
cringe
This is sweet, would like to see a video on how well it responds before I pull the trigger on one.
Can you guys make tracking GPS systems for are car that would be sweet
Just a shame you cant use that as a lap timer on your IC7 on track, would be very usefull.
Very detail video.
So, by my understanding of this tutorial there is no dedicated option for GPS speed input that way you can do GPS speed vs Drivetrain overall for traction control? Or do we have to do a front speed sensor vs rear speed sensor for AWD traction control strategies? Maybe a option for the next update to allow 2 different overall speed inputs?
Can you setup the GPS to calibrate (fine tune) a wheel speed sensor. so you always have spedo even in a tunnel. And have acurite speed with diferent size wheels.
My phone has a habit of losing its position when I go through a tunnel. I would imagine this would also?
Can this be used to replace a none driven wheel speed input, as part of a Traction Control Strategy on Elite series Ecu's, or is it to slow?
Can the dash with the GPS module be set up to get some what accurate lap times on a track?
I have this connected to my ecu master black all works but is 10mph out?
Scott, 8:29 "Should slide in effortlessly..." Hmm...
Thanks for the info. I have just got the elite 2500 and IC-7 dash and looking at options for a speed sensor. if i wire this gps through the ECU can the ECU then have cruise control? Thanks
Bit slow 10hz do you guys do a 100hz ?
Old video but can this input speed into the ecu then output it to a stock s14 cluster through a generic output or dpo?
Would this product also need to be calibrated in any special way in order to have the odometer reading to work?
I've been told gps speedometers are illegal as you won't have Signal during a cloudy day or driving through a tunnel
Is there any thought to creating a full GPD data input over CAN bus similar to the AEM 30-2206 Vehicle Dynamics Module?
What do you use for driveshaft rpm sensor values in the Elite 2500? Number of teeth? Max derivative? Warning max?
Due to the arguments for wiring it to the ecu, does that mean the ic7 does not report vehicle speed via can to the ecu if it's direct wired?
If I use this to control fans by speed, on below X, off above X. Can it still have a temperature on/off control in case signal is lost and it goes to 0mph?
Could this be used in a master and slave setup for vehicle speed. Use gps speed for accuracy ect then change to a drivetrain sensor automatically if the unit looses gps signal
My kingdom for a ≥50Hz sensor!
Does the old haltech gps unit work on the new iq7 or do I need to buy the new gps module?
How do you read mph ?
Cheeky, Govt tracking us!!!
Does it work when Drifting Donuts and burnouts?
Hi can you use the speed sensor out as an input to an aftermarket cruise control? Thanks
I've used it with a metering device. If what you need a speed input has a configurable speed Input pulse then probably
Will this work on platinum sport 2000 ecu’s? Then transmit through CAN to aim dash? 🤞🏼
Hey Luke, shoot our technical support team a message. They'll be happy to help you out: www.haltech.com/support
sorry for the question, but what happened to the elite 550? in your website she's disappeared
www.haltech.com/elite-series-revamp/
Ok, many thanks
Could you use this for a stock harness ?
Yep!
Might be a stupid question but can you hack the information as its using a sat?
I just don't want to be on the stand in court and suddenly the cops pull a fast one...
"We have retrieved these files from the haltech server which states on that night...."
No, GPS is a one way system
gps + or - lots
Hi,
what if my car is on the Dyno and I use speed dependent tuning strategies?
Well then it won’t work will it ?
@@hoonaticbloggs5402 for real haha, what a stupid question
10hz is bit slow surprised you guys not using a 50hz that way can be used in drag application
I know this would be messy, but could this be also used to power a tach booster for old school tacho's? Is there a way?
So what happens when i go through a tunnel?
🙄 re watch
The ECU thinks you're going at 0 mph, and I guess if you also had a wheel/driveshaft sensor, it would assume you're doing a burnout.
You go underground? ;)
The IC7 would explode due to loss of signal
The misconception is to say they "communicate" while gps only goes one-way. The module receives a time signal broadcast from satellites. That's it. Still cool tho
Lol… 🤦🏽♂️