RD350 YPVS Controller

[ktm200]

OK I couldn't help myself. I have tested all combinations of the last four dip switches. This test was carried out on the bench and is a no load no engine test i.e pv controller and pv motor on the bench only connected to a power supply. I do have timing figures for all of these I will post later, but the rate of movement (deg/time) was constant. I will reconduct these tests adjusting the first four dip switches later. I also hope to test again connected to my ignition when mboddy and I get an ignition test stand setup.

Test setup

I attached a degree wheel to the power valve motor and set up a pointer as close as possible to the wheel. I then set up a digital video camera directly over the top of the pointer to avoid parallax error. I then initiated two power on sequences for each setting. The video was then examined with a video editor that allowed frame by frame examination i.e. 1/25th of a second / frame.

Results

setting    rotation
_ _ _ _      66
1 _ _ _      68
_ 2 _ _      70
1 2 _ _      71
_ _ 3 _      74
1 _ 3 _      76
_ 2 3 _      79
1 2 3 _      81
_ _ _ 4      82
1 _ _ 4      85
_ 2 _ 4      86
1 2 _ 4      88
_ _ 3 4      91
1 _ 3 4      92
_ 2 3 4      95
1 2 3 4      97


The first dip switch appears to add 1 -2 degrees to the other settings.

I will post more as I test.

Regards

ktm200

[ktm200]

OK mapping all these settings is going to get complicated. I believe we need to include the setting of the first four dip switches with the last four, they are not independent of each other. There is also changes speed with switches 1-4. I have conducted 3 more tests.

all combinations of 1-4 with 13-16 set on
all combinations of 1-4 with 13-16 set off
all combinations of 1-4 with 13-16 set standard tzr250

I will post results after I analyze the video.

ktm200

[ktm200]

Ok first video completed. this is going to take some time as there is 256 of these to do.

We need to establish some conventions so we are all on the same page.

I am going to number the switches 1 - 16 from left to right as originally described by FOTIS.
All tests I am going to include all switch settings.
A number indicates the switch is on.
A underscore switch off.
The rotation is in degrees.
open  is opening time in seconds.
dwell is time at full opening in seconds.
close  is the time to close in seconds.

Some of these values may be affected by the ignition pulse, so until I get a test bench to run the ignition these figures were all collected as previously described. The dwell figure might not have importance on a running engine but it is interesting to note that switch 2 appears to increase the full open time by approx 0.96 of a second if it is switched on. Switch 4 doesn't appear to change anything so might be a setting for the number of cylinders. All these values are an average of two tests.

1-4          5-8          9-12      13-16            rotation open dwell  close
_ _ _ _   5 6 7 _   _ 10 _ _   13 14 15 16            63   0.44   0.00   0.44
1 _ _ _    5 6 7 _   _ 10 _ _   13 14 15 16           97   0.68   0.12   0.68
_ 2 _ _   5 6 7 _   _ 10 _ _   13 14 15 16            62   0.48   1.12   0.48
1 2 _ _   5 6 7 _   _ 10 _ _   13 14 15 16            97   0.64   0.96   0.68
_ _ 3 _   5 6 7 _   _ 10 _ _   13 14 15 16            95   0.68   0.12   0.68
1 _ 3 _   5 6 7 _   _ 10 _ _   13 14 15 16           130   0.80   0.00   0.88
_ 2 3 _   5 6 7 _   _ 10 _ _   13 14 15 16            95   0.64   0.96   0.68
1 2 3 _   5 6 7 _   _ 10 _ _   13 14 15 16           129   0.84   1.12   0.88
_ _ _ 4   5 6 7 _   _ 10 _ _   13 14 15 16             64   0.40   0.00   0.48
1 _ _ 4   5 6 7 _   _ 10 _ _   13 14 15 16             97   0.68   0.12   0.68
_ 2 _ 4   5 6 7 _   _ 10 _ _   13 14 15 16             63   0.48   1.12   0.48
1 2 _ 4   5 6 7 _   _ 10 _ _   13 14 15 16             97   0.68   0.96   0.68
_ _ 3 4   5 6 7 _   _ 10 _ _   13 14 15 16             95   0.68   0.12   0.68
1 _ 3 4   5 6 7 _   _ 10 _ _   13 14 15 16           130   0.80   0.00   0.88
_ 2 3 4   5 6 7 _   _ 10 _ _   13 14 15 16             95   0.64   0.96   0.68
1 2 3 4   5 6 7 _   _ 10 _ _   13 14 15 16            129   0.84   1.12   0.88



switches 1-4 tested against 13-16 with 13-16 all on.

not selecting 1 or 3 gives a rotation value of 63 degrees
switch 3 gives a rotation value of 95 degrees
switch 1 gives a rotation value of 97 degrees
switch 1 + 3 gives a rotation of 130 degrees
switch 2 adds approx 1 second of dwell at full open
switch 4 unknown ( no. of cylinders ? )



switches 1-4 tested against 13-16 with 13-16 all off.

not selecting 1 or 3 gives a rotation value of 31 degrees
switch 3 gives a rotation value of 63 degrees
switch 1 gives a rotation value of 65 degrees
switch 1 + 3 gives a rotation of 97 degrees
switch 2 adds approx 1 second of dwell at full open
switch 4 unknown ( no. of cylinders ? )



Regards

ktm200

[Fotis]

oh thanks! That would help a lot of people I guess..Another important thing to find out is which switch is setting the 1 or two cylinder mode.I think its in the first group from the left. If you like playing with electonics then you could simply connect the input of the controller (by-passing the resistors) to your output line of your soundcard. Then just by simply producing and playing back a wave file of 10-500hz will simulate the engine speed.
This is how I found out all of these values.

[ktm200]

Can you be a bit more specific with where to connect the output of the sound card. Do you connect one channel or two?

ktm200

[Fotis]

You have to connect the ground of your soundcard to the ground of the controller and the signal to the input of the controller. BUT because the controller accepts high volts signal you will have to by pass the resistors in order to trigger it. Just follow the Black and Yellow wire until you find the two resistors in series. You must connect the output after the second resistor.then try adjusting the volume until you see the servo moving.(at 200Hz for example)

[ktm200]

Thanks got it working. I tried exactly what you said originally but I had the volume too low. I overlooked playing with the volume.

[ktm200]

Switch 4 definately switches between 1 and 2 cylinders. off for a twin and on for a single.

ktm200

[ktm200]

This is the test setup.

ktm200

[Fotis]

hmm do you mean the forth switch from the first group on the left?

[ktm200]

Yes

[Fotis]

Now that we know everything about the ypvs controller its time to work on the CDI
Take a look here: http://tzr250.com/forums/index.php/topic,790.0.html
Its like the BDK modification but unfortunately I cant test it since I cannot supply the three phase input...
 

[ktm200]

 Some quick tests on a stock tdr250b PVC.

Rotation = 97 degress (stock tzr is 86 degrees) so to set a PVC for a TDR you need to set switches 13 -16 all on.


ktm200

[Fotis]

tzr125 rk settings : 1001 1110 0100 0101
ypvs F2 settings:   1000 0110 1000 0010

[HENATZR]

Hola Martin, ya cree el circuito, para convertir la señal, lo que necesito saber es como conectarlo al controlador?

Muchas gracias