****KSC3 engine knock detection system – Coming Q2 2024 – Subscribe to the MoviChip newsletter for updates.****
What Is It?
A supplemental engine knock detection system to help detect engine knock.
Visual indication via 12v PWM output for LED light/s and 0-5v output for engine ECU.
With user definable knock frequency window and user defined knock intensity threshold.
Who Is It For?
-Engine calibrator who wants visual assistance in detecting engine knock and/or wants a knock signal for engine ECU when knock is detected by the KSC3 (to retard ignition, close DBW throttle, reduce boost, add fuel etc etc.)
-Casual user who would like to know if/how much/how often an engine may be knocking.
Key Features
Detect actual knock frequency reported by knock sensor – In-built knock frequency detection software (in app)
Determine normal signal intensity in knock frequency window (over full RPM range) when engine not knocking – In built baseline intensity software (in app)
Variable 12v PWM output – Dimly lit LED for just breaching intensity threshold, to bright LED for large breaches of threshold intensity.
Variable 2.5-5v output to engine ECU – Low voltage for small breach of threshold, to high voltage for large breach.
RPM dependent knock intensity threshold – User defined.
Test function – To confirm sensor/wiring integrity.
Programmed through Android App – No laptop required.
Fit & Forget/Temporary Install – Designed for mounting in engine bay. Once settings have been programmed by user just get in the car and drive. App is not necessary in normal use, only when changing settings.
Very high-quality connector. Can be attached and removed constantly unlike cheaper connectors, like Molex type for example. And no wires need to be run into cabin, except perhaps signal wire to engine ECU.
Improvements Over KSC2
A plethora of improvements of the KSC2 including but not limited to
-Adjustable knock detection resolution.
High resolution up to 7.2KHz. Normal resolution up to 14.4KHz.
-Variable output for LED and ECU.
A negative aspect of the KSC2 was the fixed voltage output, to the engine ECU, when knock was detected.
If the engine was knocking a lot or if the engine was knocking a little, the same voltage would be sent meaning the correction table in the ECU was binary. To be safe, 10 degrees of timing could be taken out in the correction table (for example) if the KSC2 sent a signal. This was great if the knock was a lot, not great if the knock was minimal.
With the KSC3 the output is variable according to how far the knock intensity is above the user set threshold.
The LED indication is now also variable, from dim to bright, whereas before the brightness was fixed regardless of how much the intensity threshold was exceeded by.
-Load Threshold.
A lifting/closing throttle can induce knock type frequencies which can be falsely detected as knock. The KSC3 now has a user defined load threshold. Below the load threshold, knock type signals are ignored.
-User Interface.
Various improvements to the Android app to make it easier to use and easier to read.
Data transfer speeds between the app and the KSC unit have been increased also.
In Conclusion
All the features from the KSC2 have been kept. The KSC3 has honed the existing features and added the features listed above.
More details will be added to this product page closer to the release date. Subscribe to the MoviChip newsletter and YouTube channel to stay up to date.
A small number of initial units of the KSC3 will be sold as a “Release Candidate” for testing by end users at a reduced cost. Feedback from initial users may alter the product and/or delay the full release.
