This block implements PGN 49664 Monitor Performance Ratio (DM20).
Inputs
Input
Type
Description
Outputs
Output
Type
Description
ignition count
uint16
The ignition cycle counter is defined as a single counter that defines the number of ignition cycles. Requirements for incrementing the denominator are specified in the appropriate legislative documents.
obd encounters
uint16
OBD Monitoring Conditions Encountered Counts displays the number of times that the vehicle has been operated in the specified OBD monitoring conditions (e.g. CARB defines this as the general denominator).
SPNs[]
uint32[]
SPN of the system monitor for which Monitor ratio is being reported.
numerators[]
uint16[]
The number of times a vehicle has been operated such that all conditions necessary for the Applicable System Monitor to detect a malfunction have been encountered (e.g. CARB numerator requirements).
denominators[]
uint16[]
The number of times a vehicle has been operated that constitutes a driving cycle where this Applicable System Monitor could be operated per regulatory requirements (e.g. CARB denominator requirements).
