Subject:
|
Re: Control lego motors and rotation sensors
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Fri, 26 Apr 2002 02:54:33 GMT
|
Viewed:
|
554 times
|
| |
|
|
Changing the motor 'speed' (pulse wave modulation) really only changes the
torque. It will only change the speed if the motor is heavily loaded.
Another technique that is more successful is to create a control loop in
which the motor is on for 5 ticks and off for (say) 10 ticks. Whatever the
load condition the motor will run at 1/3 of full speed.
Jerry
|
|
Message has 1 Reply:
 | | Re: Control lego motors and rotation sensors
|
| (...) That's not really any different from what the RCX's firmware does though. You are doing pulse-width modulation and so does the firmware. The only difference is that you are using a longer time-constant. ---...--- Steve Baker ---...--- Mail : (...) (22 years ago, 26-Apr-02, to lugnet.robotics)
|
Message is in Reply To:
| | Re: Control lego motors and rotation sensors
|
| (...) There are commands for the RCX to use different 'power levels' - which will translate into a change in speed if there is sufficient load. (...) lego (...) No - but you can use a gear train to make the rotation sensor spin more than once for (...) (22 years ago, 26-Apr-02, to lugnet.robotics)
|
10 Messages in This Thread:
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
