One last update to close out the first year for Beastronix.
While working with Sachsenring Driving School in Germany the ABS Control logic was pushed to meet the custom needs of the school. This led to us developing a much better method of ABS Control.
The school has several training scenarios where the driver is at a much lower rate of speed in pursuit of mastering various techniques. The original ABS Control was designed around competition speeds while making use of data from the wheel speed sensors in order to control the ABS system. This method works perfectly fine, but uses 10-30mph/16-48kmh as a prep zone before keeping ABS off at 30mph/48kmh.
If you happen to be cruising in this prep zone the 86Nanny is communicating interval settings with the Skid Control Module (SCM) based on wheel speed sensors. In this zone ABS is in a pre off state. Rene at Sachsenring was kind enough to send video of some driving and detail the low speed maneuvers they perform. This put us at the drawing board for a custom ABS solution. After a month of logging & data pushing we’ve successfully achieved ABS control without needing wheel speed sensor data.
Differences:Old ABS Control
- ABS off indicators at 10mph/16kmh
- Interval ECU checks every 4 seconds between 10-30mph/16-48kmh.
- ABS OFF after exceeding 30mph/48kmh. ABS remains completely off until car has to come to a stop (wheel speed sensors at 0).
Driver Perspective: Just drive. If hanging between 10-30mph/16-48kmh you’ll see quick ABS indicator blinks every 4 seconds. Once you exceed 30mph/48kmh the ABS lamp stays steady until you have to come to another stop. Each stop = communication requirements with the SCM.New ABS Control
- ABS OFF instantly upon ABS Control button press.
- 1 Required ECU check at 30mph/48kmh per complete stop.
Driver Perspective: ABS instantly off. If you were at 0mph/kmh when you disabled ABS the ECU will do 1 check at 30mph/kmh causing a quick blink in the ABS indicator. If you were already rolling the ECU requires 0 checks. 1 check per vehicle stop required.
The functional end result? The new method enables low speed maneuvers without ABS being intrusive while also meeting competition speed needs. The other bonus is freeing up processing power on the 86Nanny since it’s no longer monitoring the wheel speed sensor data.
All ABS related orders from 12/28/15 forward include this ABS Update.