Nissan Leaf (and Tesla) coolant pumps

[tom91]

Not sure that 2hz (what the pump wants) is achievable with the fixed prescalar, I have not tried it. EDIT:your values appear to be under 16bit so it should work.

using TIM3 and modifying anything there adjust ALL pwm output frequencies. There are only two frequencies possible, one for all PWM outputs and one for the Oil pump pwm

I recommend we move the conversation to viewtopic.php?p=82853

[vitecd]

I've not tried it yet but will report back

Hi,
Have you tried yet?

[tom91]

Have you tried yet?

The zombie DOES not provide a pwm for the pump unless:
1. you use the pwm output and set it up as described here:viewtopic.php?t=6403
2. you modify the code and create a new PWM output function

Same answer as here
viewtopic.php?p=84304#p84304

[Alibro]

Hi,
Have you tried yet?

Not yet, still rebuilding the LV and HV junction boxes
Life, work and a bad back slowing progress but I'll probably keep using the Arduino Uno initially. I might even try to setup two different outputs as the heater pump does not need to push as hard the the coolant pump.

[alexbeatle]

Tesla pump consumes max. 7A, Nissan Leaf pump consumes max. 3,5A? So Nissan Leaf pump can only produce ~ half the flow rate that of Tesla pump (max. 720L/h)?

[jrbe]

Tesla pump consumes max. 7A, Nissan Leaf pump consumes max. 3,5A? So Nissan Leaf pump can only produce ~ half the flow rate that of Tesla pump (max. 7200L/h)?

You have to know flow, pressure, and or efficiency to know for sure.