Enable Heater when engine start.

[billlask]

Hello,

i want to ask if anyone know how can i read the temperature before satrt heating the sensor.
I want to detect from temperature that the engine is starting so after that start heating the sensor.
With this i think i can protect the sensors for failure

Thank you

[Christian_Bylund]

Hello,

i want to ask if anyone know how can i read the temperature before satrt heating the sensor.
I want to detect from temperature that the engine is starting so after that start heating the sensor.
With this i think i can protect the sensors for failure

Thank you

Hello, there is actually a pre-heating water condensation phase implemented already in our example code following the Bosch recommendation for LSU 4.9 sensors. To answer your question, the adcValue_UR variable is used to measure the temperature of the sensor.

[billlask]

Thank you for answering.
i have see your pre-heating example code that works perfect.
My problem is that many time i will urn on the ignition and i will start the engine 5 minutes ago.
The time that i start the engine he LSU has full heat and this is my problem about sensor fail.

That i want to do is to understand from the heat that the engine is running and after that run your pre-heating algorith.

I have log the adcValue_UR and I increase the heat on the sensor but the value has no change.
I make the same test to add small buty abiut 20/255 on the heater but again no change on UR what i heat the sensor.

Any other idea?