hp calc PID

[pwilson22000]

I've been trying to get the calc PID. "Power at Rear Wheels" to work and I have not been succesful. I've added the vehicle weight to the text file and still get the below error.

[blandmiller]

The PID values are entered correctly. Are you getting an error when you attempt to log? The PID will not calculate until you start recording. It will read "N/A" all the time while you are 'real-time' monitoring and will start displaying calculated values when you record.

[Blacky]

Exactly what blandmiller said, plus...

The divide by zero is caused when the dx() function is calculated. It is calculated as (change in speed)/(change in time) which will reuslt in a divide by zero error if the (change in time) is zero. While monitoring, there is no change in time as no frames are being recorded in the strip charts.

I've added the vehicle weight to the text file and still get the below error.

Make sure you add the vehicle weight to the customer data for the vehicle you are logging. Once you save a log file the vehicle weight is saved into the log file based on what was in the customer details when the log was made.

If you want to change/set the vehicle's weight for an existing log file, use the menu option: Edit->Log file information.
Remember to save the log file again after changing any information.

Regards
Paul

[pwilson22000]

thanks, I'll try that!