Tesla Charge Time Calculation

gistfile1.txt

    def calculate_charge_time(self, log, starting_range, kwh_needed, cold_pack=False, charger_type="supercharger"):
        '''
        Data via TMC thread:
            super: {
                efficiency:     0.93,
                chargeRate1:    114.1,
                chargeRate2:    50.4,       // kW/hour
                dropoff:        150,        // dropoff distance in miles
                image:          IMAGES[MODEL]["super"]
            }
            https://teslamotorsclub.com/tmc/threads/model-x-subsite-updates.9573/page-19
        '''
        miles_to_add = (kwh_needed * 1000.0) / self.rated_wh_mile
        log.debug("   miles to add: %d", miles_to_add)
        log.debug("   starting range: %d (%.1f%%)", starting_range, 100.0*starting_range/self.max_range)
        log.debug("   ending range: %d (end at %.1f%%)", miles_to_add + starting_range,
                  100*(miles_to_add + starting_range)/self.max_range)

        if starting_range > 150:
            m = (1 / (50.4 * 1000 / 60)) * miles_to_add * self.rated_wh_mile
        elif starting_range + miles_to_add <= 150:
            m = (1 / (114.1 * 1000 / 60)) * miles_to_add * self.rated_wh_mile
        else:
            m = (1 / (114.1 * 1000 / 60)) * (150 - starting_range) * self.rated_wh_mile
            m += (1 / (50.4 * 1000 / 60)) * (miles_to_add - (150 - starting_range)) * self.rated_wh_mile

        log.debug("   minutes to charge: %d", m)
        if cold_pack:
            m *= 1.4
        return m