ABS Sensor data?
Thread Starter
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
ABS Sensor data?
Does anyone have a decent rundown of information for ABS sensors on an 89?
Are they hall effect sensors?
Operating Voltage?
Ohm?
How many "teeth" do the wheels have?
Sorry I'm a PITA, but I can't find a single source that has all of this data for this year. I found a site that had some info for the later LT1 equipped C4s but some data was missing and I wasn't sure if it had been changed from 89.
Are they hall effect sensors?
Operating Voltage?
Ohm?
How many "teeth" do the wheels have?
Sorry I'm a PITA, but I can't find a single source that has all of this data for this year. I found a site that had some info for the later LT1 equipped C4s but some data was missing and I wasn't sure if it had been changed from 89.
Thread Starter
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Anything?
I'm building a system that taps into one front and one rear ABS sensor for traction control. I have a working code, but without specifics it wont be reliable, and adjusting for variables like tire size will be nearly impossible.
I'm building a system that taps into one front and one rear ABS sensor for traction control. I have a working code, but without specifics it wont be reliable, and adjusting for variables like tire size will be nearly impossible.
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Joined: Dec 2016
Posts: 65
Likes: 3
Thread Starter
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Traction control system using arduino. It will compare front and rear wheel speeds using the ABS sensors, and the duty cycle on a boost controller to lower boost % by the % that the tires are spinning.
I have a pretty archaic formula made up now that sends 5v to the sensor and measures the return. But instead of the number of teeth, I just let it output a raw number, and then I go for a drive with a GPS speedo (my phone) and divide the raw number down until I get close.
If I had the number of teeth on the wheel, I could make up variables that let me enter tooth count, tire size, etc, and it would work for any wheel/tire combination, ABS reluctor count on other vehicles, etc.
I don't see the point in making up another bracket and mounting separate sensors when everything I need is already there.
I have a pretty archaic formula made up now that sends 5v to the sensor and measures the return. But instead of the number of teeth, I just let it output a raw number, and then I go for a drive with a GPS speedo (my phone) and divide the raw number down until I get close.
If I had the number of teeth on the wheel, I could make up variables that let me enter tooth count, tire size, etc, and it would work for any wheel/tire combination, ABS reluctor count on other vehicles, etc.
I don't see the point in making up another bracket and mounting separate sensors when everything I need is already there.
Thread Starter
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Are the early ones are not sealed on the fronts? I can't get to the reluctor on the fronts or I wouldn't be here asking. I can definitely start with 47. I was going to hook up to the ABS and spin the wheel exactly 1 time and count the pulses, but it always ends up +/- 1 tooth when done that way.
I can definitely work with 47. That's a solid start for me.
The only other part of the equation is wiring/voltage. If its 12v, I'll need some additional hardware. If I can send a 5v signal through it and read it, I'm all set.
Thanks!
I can definitely work with 47. That's a solid start for me.
The only other part of the equation is wiring/voltage. If its 12v, I'll need some additional hardware. If I can send a 5v signal through it and read it, I'm all set.
Thanks!
