Has any one been able to control the Bosch 0 132 008 600 'steeper' motor with VEMS?
Im having difficulty finding any information on the motor itself, so I destroyed one to see what was inside. I initialy thought this was a bipolar stepper motor, but since I fried the chip, which incidently coincided with all my other problems, but upon taking it apart, it is clear it is just a simple DC motor, driving a worm screw/ pinion and then a lead screw to give a linier movement.
There are four pins, two are the motor, and the other two would appear to be a switch arrangement which is open when the throttle stop is off the 'lead screw' and closed when the throttle stop is on the lead screw. I assume this is used in some war to determine idle and drive condition?
Any help on how I can control this single winding motor. I would call this a servo, rather than a motor, or a servo. I cant see PWM working as it will not return to its 'closed' state when the power is removed.
I have thought about using only one pair of the stepper motor driver, but not sure how that will work, if at all.
(http://i8.ebayimg.com/02/i/02/e3/d9/e8_1_b.JPG)
(http://i9.ebayimg.com/04/i/08/42/da/01_1_b.JPG)
HELP!! :-\
;D
After further trial and thought, its not going to work :-\
Bummer
Sounds like it needs to be driven by a H bridge setup. How VEMS would handle this I'm not sure. Is this the stock mini setup?
-Gavin
IIRC an H-Bridge is what the stepper driver is, but there would need to be specific code written in order to control the unique way that motor works.
It is not suitable for VEMS. Its a 5v motor ::)
It is a common part though. This motor is from the BMW K1200, and I have just fitted the K1200 throttles to take advantage of the 'stepper' motor, LMFAO. The Mini uses either a unipolar throttle kicker on the SPi or a unipolar IACV on the MPi.
I have managed to tee in a Rover VVC IACV, which is bipolar without modification, lol. Just waiting until tomorrow to see if its going to be man enough on the 1/4" ports on each throttle :-\