Since acc works at very high speeds, and can detect cars far enough for it to slow down and keep the distance you chose, and not just barely avoid the car in front, then it must have a high detection range. AEB detection range is up to 200 meters...
Yes sorry I didn't reply.
For ACC, I don't know about actual systems automakers use, but I got a theoretical value:
The 77-GHz Autocruise radar system made by TRW has a forward-looking range of up to 492 feet (150 meters)
Does not acc let you select a certain distance between you and a potential, not yet existing, car, and then whenever your car detects another car at that distance away, it will slow down. I don't know.
Check the video at 1:17
Adaptive/active/radar cruise control (Update: It is not adaptive cruise control. It is automatic emergency braking) works only at or below 50 miles (per hour) in some high end cars like range rover, and even below that in other cars.
Does anyone know why?
Thanks a lot
60 volt tools are more expensive than 20 volt tools. However, when adding the price of batteries and the revenue of the additional runtime of 60 volt tools (assuming 1380 watts because that is the average wattage of their corded saws [1200-1560 watts] ), the less expensive option becomes the 60...
Hi
For a 1200 watt tool, there are 20, 40 and 60 volt batteries, and in the case of a 2 amp hour (7200 Coulomb) battery, using energy = charge x voltage gives different values of stored energy for each of the three batteries, which are 144000, 288000 and 432000 Joules.
Is this correct?
Thanks
Hi
Air conditioner vs evaporative cooler: ratio of (BTUs/hr) / electrical watts
I know evaporative coolers do not state BTUs/hr. I do not know why.
Did anyone try them and record time taken to cool.
I found this example, but I do not know if it is practically relevant...
This is beyond my knowledge level at the moment.
Maybe I should have said "ratio of [BTU/hr] / hp" instead of efficiency, and take room and outside temperature as constant.
1. OK, if the AC runs at lower than max, for 50% BTU/hr, it will have lower efficiency if power does not decrease by 50% (ratio of BTU/hr / hp).
2. I will look for that.
Thanks
2. ACs work at maximum power when air flow rate and thermostat levels are maximum, and cool with the stated BTU/hr.
When air flow rate and thermostat levels are not max, BTU/hr will not be max. Let us take BTU/hr to be 50%, what will power be? If it is higher than 50% then running the AC at...