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History of MembersPage/PetrPodrazsky
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2015-01-01 07:00:00 . . . . MembersPage/MarcellGal [changed link to shop.vems.hu]
2015-01-01 07:00:00 . . . . MembersPage/MarcellGal [implementation]
2015-01-01 07:00:00 . . . . snat.klfree.net
2015-01-01 07:00:00 . . . . MembersPage/MarcellGal [throttle implementation]
2015-01-01 07:00:00 . . . . PhatBob [Answer to trigger question]
2005-11-11 21:17:59 . . . . snat.klfree.net
2005-11-11 19:15:53 . . . . snat.klfree.net [Questions abaut initial config]
2005-11-11 19:04:09 . . . . snat.klfree.net [Some questions abaut initial config]
2005-11-11 15:12:03 . . . . snat.klfree.net [Ignition question and cleaning]
2004-06-10 06:37:59 . . . . snat.klfree.net

Changes by last author:

Changed:
The common solution is to use 74HC259 output, with 510 Ohm (270 Ohm..1kOhm). See [assembled controller specs in webshop] for which channels are traditionally used: check the 6+2 configuration: (namely channel3=EC36pin36 and channel5=EC36pin12 are logic-level) but you can use any, of course.
The common solution is to use 74HC259 output, with 510 Ohm (270 Ohm..1kOhm). See assembled controller specs in WebShop for which channels are traditionally used: check the 6+2 configuration: (namely channel3=EC36pin36 and channel5=EC36pin12 are logic-level) but you can use any, of course.
Changed:
I'll put some photos and info later. It looks nearly same as one at link above, but only 45 mm diameter. Now I cant find file upload to VEMS server, but I can put it to another place..
I'll put some photos and info later. It looks nearly same as one at link above, but only 45 mm diameter.

* file upload is on bottom of DocsPage

Changed:
* and possibly MAP feedback would be nice too

Can you write more abaut MAP feedback, please? As I said I need only basic throttle control from pedal, so I didn't searched for anny control method.

* and possibly MAP feedback would be nice too. This means closed loop: the direct PWM(TPS, RPM) function is only a reference PWM value, and MAP(TPS, RPM) is the target value that is maintained with a (eg. PID) controller algorithm. This means that actual PWM can diverge somewhat (eg. +-10%) from the reference PWM(TPS, RPM). Open-loop PWM(TPS, RPM) is OK to try first, might give perfect results without added complexity.
Changed:
Here is some info abaut DC motor in throttle:
Here is some info about DC motor in throttle:
Changed:
Yes it could be nice to have implemented this in genboard firmware. But I haven't many experiences with programing. I didn't study genboard sources detailed. Can someone help "howto implement Electronically controlled throttle to Genboard code"? :-) Anny template.. :-)
Yes it could be nice to have implemented this in genboard firmware. But I haven't many experiences with programing. I didn't study genboard sources in detail. Can someone help "howto implement Electronically controlled throttle to Genboard code"? :-) Any template.. :-)

It's easier to put the code in the firmware than into an external board. If the solenoid wants a fixed frequency signal, the same approach can be used as in boostcontrol.c. Otherwise it's even easier: softpwm.c.

Just be sure to configure overrun fuelcut to prevent engine from overrevving when TPS is near 0% (<iac_tps_thres) and the electronic throttle is opened more than it should (for some reason, eg. during development, or broken wires).