PowerBoost Electrical Consumption at High Temperatures

[turbopilot]

Today I drove my 2023 PB from Flagstaff, AZ to Palm Springs, CA pulling a 7,300 lb Airstream. When I left Flagstaff the temperature was 47F. When I arrived in Palm Springs 6 hours later it was 113F.

This is the first time I have operated my PB at temperatures this high pulling a 7,300 lb trailer. Engine temperatures were remarkable steady no matter what the outside temperature. Transmission and engine coolant remained in a narrow band between 200F and 210F.

However, as I descended into the hot temperatures electrical demand rose to very high levels. The air conditioning compressor at times was drawing up to 12 amps @ 280 volts. That is a lot of watts. Likewise the DC/DC converter was putting out up to 111 amps @ 12 volts. Half of the demand on the DC/DC converter came as the variable output high flow electric engine fan kicked on at temperatures above 100F.

The high voltage battery temperature was interesting watch. The battery temperature cycled between 115F and 126F. As the temperature of the battery approached 126F the high voltage air conditioner motor would come on and pull up to 12 amps @ 280 volts driving the battery temperature back down.

And finally, with the blower at 5 and above the voltage charge level for the 12 volt batter fell as the temperature climbed. Leaving Flagstaff at 47F the 12 volt battery was charging at 14.3 volts. The charge level progressively dropped as the temperature increase to 13.4 volts at 113F outside air temperature. So 12 volt battery charging is temperature compensated.

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[Longdeck]

Today I drove my 2023 PB from Flagstaff, AZ to Palm Springs, CA pulling a 7,300 lb Airstream. When I left Flagstaff the temperature was 47F. When I arrived in Palm Springs 6 hours later it was 113F.

This is the first time I have operated my PB at temperatures this high pulling a 7,300 lb trailer. Engine temperatures were remarkable steady no matter what the outside temperature. Transmission and engine coolant remained in a narrow band between 200F and 210F.

However, as I descended into the hot temperatures electrical demand rose to very high levels. The air conditioning compressor at times was drawing up to 12 amps @ 280 volts. That is a lot of watts. Likewise the DC/DC converter was putting out up to 111 amps @ 12 volts. Half of the demand on the DC/DC converter came as the variable output high flow electric engine fan kicked on at temperatures above 100F.

The high voltage battery temperature was interesting watch. The battery temperature cycled between 115F and 126F. As the temperature of the battery approached 126F the high voltage air conditioner motor would come on and pull up to 12 amps @ 280 volts driving the battery temperature back down.

And finally, with the blower at 5 and above the voltage charge level for the 12 volt batter fell as the temperature climbed. Leaving Flagstaff at 47F the 12 volt battery was charging at 14.3 volts. The charge level progressively dropped as the temperature increase to 13.4 volts at 113F outside air temperature. So 12 volt battery charging is temperature compensated.

Amazing what the blower setting 5 or above does for charging the battery. Wondering what is Ford theory for programming to kick boost battery at this setting?

OBW…totally love Flagstaff

 

[Oxford_Powerboost]

I too have seen crazy draws from the compressor at high outside temperatures. It works quite well though - but certainly pulls a lot of watts and makes quite the racket

 

[Cobraman428]

Today I drove my 2023 PB from Flagstaff, AZ to Palm Springs, CA pulling a 7,300 lb Airstream. When I left Flagstaff the temperature was 47F. When I arrived in Palm Springs 6 hours later it was 113F.

This is the first time I have operated my PB at temperatures this high pulling a 7,300 lb trailer. Engine temperatures were remarkable steady no matter what the outside temperature. Transmission and engine coolant remained in a narrow band between 200F and 210F.

However, as I descended into the hot temperatures electrical demand rose to very high levels. The air conditioning compressor at times was drawing up to 12 amps @ 280 volts. That is a lot of watts. Likewise the DC/DC converter was putting out up to 111 amps @ 12 volts. Half of the demand on the DC/DC converter came as the variable output high flow electric engine fan kicked on at temperatures above 100F.

The high voltage battery temperature was interesting watch. The battery temperature cycled between 115F and 126F. As the temperature of the battery approached 126F the high voltage air conditioner motor would come on and pull up to 12 amps @ 280 volts driving the battery temperature back down.

And finally, with the blower at 5 and above the voltage charge level for the 12 volt batter fell as the temperature climbed. Leaving Flagstaff at 47F the 12 volt battery was charging at 14.3 volts. The charge level progressively dropped as the temperature increase to 13.4 volts at 113F outside air temperature. So 12 volt battery charging is temperature compensated.

Hey TurboPilot, could you post your OBD MX+ config file for your PowerBoost 1.4. I have your 1.3 working and this one looks better. Thanks!

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