USB OBDII Interface
This OBDII Interface provides a quick way to record the vehicle's engine RPM,
this is specially useful with diesel engines, in which neither the capacitive clamp
nor inductive clamp can acquire the engine speed
OBDII interface + USB adapter
SportDyno communicates directly with the OBDII interface
OBDII Configuration Window
In this window the computer shows the available PIDs (car channels), and the user can select those PIDs that want to acquire. This is useful for slow protocols like K-line, to avoid low sample rates per channel. In the example only Engine RPM and speed are selected
Battery voltage is provided by the OBDII interface, not by the car, so it consume less communications time.
After selecting which channels are going to be used in the system, these channels can be used either on the Ratio Window or during the recording of the test:
This screenshot shows the following OBDII channels: battery, engine RPM and speed (dark)
Note that the data provided by this car is slow because it is based on K-line. This is the reason only two channels have been selected. On cars using CAN or other protocols speed is much higher.
We are preparing an improved algorithm to obtain the data at the fastest speed available, and to interpolate the data so the graphs are high quality in the next Software version.
Channel Selector (in Gauges Window)
List of OBDII channels is added to the main Channel List of the program, so they can be displayed in the Gauges Window
Last modified: 1/OCT/2015