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When you are just changing the operational parameters like "current", you should use the "set current" command. When you are in ERPM feedback mode, similarly you can set the target ERPM dynamically with a dynamic command. If you want to measure voltage and current, calculate watt...
Because most people configure the throttle as a current control device, at 0 throttle you will command 0 current. In that case the vesc turns everything off. The gui will however show a duty cycle proportional to the speed.
Your original question is simple to answer: you use, IIRC, the HALL1, and HALL2 signal wires. Double check that those go to pins that have function TIMx-CH1 and TIMx-CH2 . where the x can be found under HW_ENC_TIM in hwconf/hw_<your hardware>.h . But.... then you probably have to write some software...
my understanding is the back emf voltage at this speed will exceed the battery voltage.\ When the voltage from the motor exceeds the battery voltage, the parasitic diodes in the mosfets will function as a three-phase-rectifier. Thus even without using the throttle, the motor will start working as a...
- 14 Mar 2018, 07:14
- Forum: General
- Topic: would this method be accurate to determine a motor winding resistance?
- Replies: 3
- Views: 1647
Dor, please ignore Devin. He's got some non-scientific ways to get some results that are not scientifically valid. He starts out with assuming a gear ratio. That's the last thing you need. The motor can put out 2500 Watts. If we take that to be correct, the main question is: Can you do 15mph on 2500...
- 17 Feb 2018, 15:44
- Forum: For sale, orders, etc.
- Topic: MINI compatible with VESC® Software
- Replies: 46
- Views: 44425
Most fet drivers are "afraid" that you'll drive the FETs at a gate voltage that is insufficient to fully turn on the FET. When that happens, the FET would blow because it had voltage AND current across it so way more power than expected. So most fet drivers will have an "under voltage...