JKos
Elite Veteran
Location: City of California in the state of Maryland
| Paul,
Welcome to the battle of ESCs.
Here are few ideas for you to consider...
1. Ability to log current, voltage, throttle percentage (actual ESC internal throttle, not the input), and RPM. Data can then be retrieved from ESC by connecting to a computer, perhaps by USB.
2. Smart soft-start/auto-rotation abort logic. Perhaps a difference between "throttle off" and "zero throttle". "Throttle off" would be less than a certain pulse width. "Zero throttle" would be a dead band between the throttle off pulse width and a the smallest throttle percentage pulse width. The controller only goes through the soft start routine if the "throttle off" mode was entered. If only "zero throttle" was commanded, then no (or a very abreviated) soft start would occur.
3. Constant rpm. Of course! What's a brushless ESC with out a governor mode. On this note, here is an idea for you... Many folks have found that standard throttle mode and using throttle curves is more efficient with lower ESC and motor temps and longer flights. Some way to combine governor mode with standard throttle could be interesting. For example, the ESC responds as if in standard throttle mode except that at the beginning of the battery pack 90% commanded throttle might only be 80% internal ESC throttle. As the pack voltage decreases, the internal ESC throttle associated with a given input throttle level increases. I guess you could say that it would be a very slow response governor mode plus standard throttle mode.
4. A safe startup routine. Something that makes it very obvious that the user really did want to start the motor. This also includes making sure the ESC will never start the motor if a flight pack is plugged in before the receiver is powered amd a valid signal is being received.
5. "High Voltage" operation. It should be able to handle at least a 10S LiPo setup.
6. Built in switching BEC.
- John |
