Race Technology

Hello,

I am racing a Lotus Elise without an ABS system on board and want to upgrade the informations the DL1 MK3 is gathering. For this reason I want to swap the current hub / wheel bearing without speed sensors to the ones with a speed sensor. Both bearings are identical because the later, Toyota powered Elises came with an ABS.

The sensor offers 2 wires. Sadly I have not so many information about the details of the sensor: Is it a Hall effect sensor or a Reed switch? Hopefully it is not an inductive type proximity detector switch. Does anybody have this info?

And next is the wiring to the DL1. Is it just plug and play? +5V to the one cable and the other one to the frequency input?

Thanks a lot!

Regards, Jo

2 wires means its most likely a magnetic inductive sensor rather than hall effect which typically uses 3 wires.

Yes for 2 wire, you will likely need a converter box. Variable Reluctance sensors.

One of these is required:

http://www.race-technology.com/signal_c ... 30630.html

If you are handy with electrical diagrams, you can home brew one. A variable reluctance conditioner and a divider.

I've bench tested a solution using a MAX9926 for dual channel VR to square wave outputs. If required you can then pass the output from the MAX9926 through a frequency divider to reduce the number of pulses by 2, 4, 8, 16, 32 etc

Thanks for the quick answers. I am far away from brewing my own so I would have to take the VRS Signal conditioner.

On the other hand the conditioner costs more than twice the price of a wheel speed sensor. Lets see how easy they are to install.

Thanks a lot!

I use these for wheel speed sensing http://uk.rs-online.com/web/p/hall-effe ... s/7659328/

I used a LM1815 and a divider (though I can't remember the code).

Works on the bench, but haven't mounted it to the car yet.