Electronic variable vane control
Electronic variable vane control
03-23-2009, 06:45 PM
#49
The MPX4250GP from Freescale Semiconductor makes a great boost gauge too. Its rated to I think, 45psi, and outputs as a 0-5v analog voltage.
As for my turbo project, I just finalized the design for the vane actuator circuit. I'm using a dsPIC33 microcontroller and H-bridge chip to drive the VNT's actuator motor directly, bypassing the built in computer. Position feedback will be provided by a throttle position sensor (potentiometer) connected to one of the analog inputs. Everything is controlled over an I2C bus by the turbo computer (at this time, its a laptop with a USB I2C interface, but will eventually be a PIC32 micro). I initially wanted to use CAN bus but I don't have any equipment capable of debugging it easily.
VNT Actuator Board:
http://img15.imageshack.us/img15/2223/vntboard.jpg
Edit: looks like someone already suggested the maxim part before me.. as for circuit boards, the classic laser printer toner transfer method has worked for me for years now. 10 mil traces and 0.5mm pitch parts are possible if your good.
This post was last modified: 03-23-2009, 07:07 PM by 300SD81.
Ich liebe meine Autos!
1981 Mercedes-Benz 300SD | 156K Miles | 2nd Owner | EGR Disabled [Removal Pending] | ALDA Removed | Straight Pipes | GT2256V??? | Laser Interceptor | Engine swap over summer, hopefully with GT2256V attached...
1981 Mercedes-Benz 300SD | Odo Stopped at 160K (at least 50K more) | EGR Disabled | ALDA All The Way Out | Straight pipes | FM-870 Remote Start Alarm System | B100 Biodiesel | AC Fixed x2 | Trunk crushed in
| Retired to garage.Excessive speeding? It ain't excessive till I redline!
If you plan on using the board for EGT, might I suggest the MAX6675 (http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3149 ) I'm using it for my EGT probe and its alot more accurate than using the microcontroller's AD inputs. Your board has a Atmel ATmega168, which I believe has a SPI interface to connect to the chip.
The MPX4250GP from Freescale Semiconductor makes a great boost gauge too. Its rated to I think, 45psi, and outputs as a 0-5v analog voltage.
As for my turbo project, I just finalized the design for the vane actuator circuit. I'm using a dsPIC33 microcontroller and H-bridge chip to drive the VNT's actuator motor directly, bypassing the built in computer. Position feedback will be provided by a throttle position sensor (potentiometer) connected to one of the analog inputs. Everything is controlled over an I2C bus by the turbo computer (at this time, its a laptop with a USB I2C interface, but will eventually be a PIC32 micro). I initially wanted to use CAN bus but I don't have any equipment capable of debugging it easily.
VNT Actuator Board:
http://img15.imageshack.us/img15/2223/vntboard.jpg
Edit: looks like someone already suggested the maxim part before me.. as for circuit boards, the classic laser printer toner transfer method has worked for me for years now. 10 mil traces and 0.5mm pitch parts are possible if your good.
Ich liebe meine Autos!
1981 Mercedes-Benz 300SD | 156K Miles | 2nd Owner | EGR Disabled [Removal Pending] | ALDA Removed | Straight Pipes | GT2256V??? | Laser Interceptor | Engine swap over summer, hopefully with GT2256V attached...
1981 Mercedes-Benz 300SD | Odo Stopped at 160K (at least 50K more) | EGR Disabled | ALDA All The Way Out | Straight pipes | FM-870 Remote Start Alarm System | B100 Biodiesel | AC Fixed x2 | Trunk crushed in
| Retired to garage.Excessive speeding? It ain't excessive till I redline!
Messages In This Thread
Electronic variable vane control - by winmutt - 01-08-2009, 05:47 PM
RE: Electronic doodads - by winmutt - 01-08-2009, 06:13 PM
RE: Electronic doodads - by Gross Polluter - 01-09-2009, 02:22 AM
RE: Electronic doodads - by ForcedInduction - 01-09-2009, 04:03 AM
RE: Electronic doodads - by winmutt - 01-09-2009, 08:10 AM
RE: Electronic doodads - by winmutt - 01-09-2009, 09:11 AM
RE: Electronic doodads - by Gross Polluter - 01-09-2009, 09:41 AM
RE: Electronic doodads - by GREASY_BEAST - 01-09-2009, 10:54 AM
RE: Electronic doodads - by winmutt - 01-09-2009, 11:05 AM
RE: Electronic doodads - by GREASY_BEAST - 01-09-2009, 01:10 PM
RE: Electronic doodads - by winmutt - 01-09-2009, 02:55 PM
RE: Electronic doodads - by oel_brenner - 01-10-2009, 01:02 PM
RE: Electronic doodads - by GREASY_BEAST - 01-11-2009, 12:45 PM
RE: Electronic doodads - by tantank79 - 01-12-2009, 01:21 AM
RE: Electronic doodads - by Telecommbrkr - 01-11-2009, 10:37 PM
RE: Electronic doodads - by winmutt - 01-12-2009, 10:20 AM
RE: Electronic doodads - by ForcedInduction - 01-12-2009, 02:01 AM
RE: Electronic doodads - by oel_brenner - 01-12-2009, 07:56 PM
RE: Electronic doodads - by winmutt - 01-12-2009, 08:49 PM
RE: Electronic doodads - by oel_brenner - 01-12-2009, 09:03 PM
RE: Electronic doodads - by winmutt - 01-12-2009, 09:40 PM
RE: Electronic doodads - by GREASY_BEAST - 01-14-2009, 03:05 PM
RE: Electronic doodads - by oel_brenner - 01-14-2009, 11:41 PM
RE: Electronic doodads - by Gross Polluter - 01-15-2009, 01:57 AM
RE: Electronic doodads - by Tymbrymi - 01-30-2009, 01:54 PM
RE: Electronic doodads - by winmutt - 01-14-2009, 05:21 PM
RE: Electronic doodads - by winmutt - 01-15-2009, 10:06 AM
RE: Electronic doodads - by winmutt - 01-20-2009, 10:29 PM
RE: Electronic doodads - by winmutt - 01-20-2009, 11:16 PM
RE: Electronic doodads - by winmutt - 01-21-2009, 02:55 PM
RE: Electronic doodads - by cannonballSDL - 01-25-2009, 04:02 AM
RE: Electronic doodads - by winmutt - 01-26-2009, 10:37 AM
RE: Electronic doodads - by winmutt - 01-30-2009, 02:08 PM
RE: Electronic doodads - by Tymbrymi - 01-30-2009, 02:47 PM
RE: Electronic doodads - by ForcedInduction - 03-17-2009, 07:25 PM
RE: Electronic doodads - by Tymbrymi - 03-18-2009, 07:51 AM
RE: Electronic doodads - by ForcedInduction - 03-18-2009, 07:59 AM
RE: Electronic doodads - by GREASY_BEAST - 03-18-2009, 09:13 AM
RE: Electronic doodads - by Tymbrymi - 03-19-2009, 08:36 AM
RE: Electronic doodads - by GREASY_BEAST - 03-19-2009, 11:45 AM
RE: Electronic doodads - by GREASY_BEAST - 03-21-2009, 09:54 AM
RE: Electronic doodads - by Tymbrymi - 03-23-2009, 07:40 AM
RE: Electronic doodads - by GREASY_BEAST - 03-23-2009, 10:41 AM
RE: Electronic doodads - by winmutt - 03-17-2009, 07:41 PM
RE: Electronic doodads - by ForcedInduction - 03-17-2009, 07:44 PM
RE: Electronic doodads - by winmutt - 03-17-2009, 07:47 PM
RE: Electronic doodads - by winmutt - 03-18-2009, 03:02 PM
RE: Electronic doodads - by 300SD81 - 03-23-2009, 10:10 AM
RE: Electronic doodads - by Tymbrymi - 03-25-2009, 08:17 AM
RE: Electronic doodads - by 300SD81 - 03-23-2009, 06:45 PM
RE: Electronic doodads - by winmutt - 03-24-2009, 10:08 AM
RE: Electronic doodads - by Gross Polluter - 03-24-2009, 02:54 PM
RE: Electronic doodads - by winmutt - 09-04-2009, 10:31 AM
RE: Electronic doodads - by 300SD81 - 03-29-2009, 11:53 AM
RE: Electronic doodads - by 300SD81 - 04-09-2009, 10:23 AM
RE: Electronic doodads - by oel_brenner - 04-20-2009, 10:54 PM
RE: Electronic doodads - by 300SD81 - 04-20-2009, 11:40 PM
RE: Electronic doodads - by ForcedInduction - 04-21-2009, 05:45 PM
RE: Electronic doodads - by oel_brenner - 04-21-2009, 10:06 PM
RE: Electronic doodads - by oel_brenner - 04-29-2009, 10:41 PM
RE: Electronic doodads - by oel_brenner - 04-30-2009, 10:48 PM
RE: Electronic doodads - by Gross Polluter - 06-05-2009, 03:55 PM
RE: Electronic doodads - by winmutt - 09-03-2009, 01:27 PM
RE: Electronic doodads - by Tymbrymi - 09-03-2009, 01:36 PM
RE: Electronic doodads - by winmutt - 09-03-2009, 02:25 PM
RE: Electronic doodads - by tomnik - 09-04-2009, 06:15 AM
RE: Electronic variable vane control - by winmutt - 09-04-2009, 08:27 AM
RE: Electronic variable vane control - by Tymbrymi - 09-04-2009, 01:33 PM
RE: Electronic variable vane control - by winmutt - 09-04-2009, 03:21 PM
RE: Electronic variable vane control - by winmutt - 01-22-2011, 10:21 PM
RE: Electronic variable vane control - by aaa - 01-22-2011, 10:53 PM
RE: Electronic variable vane control - by winmutt - 01-22-2011, 11:38 PM
RE: Electronic variable vane control - by Spaceraver - 01-23-2011, 12:08 PM
RE: Electronic variable vane control - by winmutt - 01-23-2011, 03:55 PM
RE: Electronic variable vane control - by winmutt - 01-24-2011, 09:25 AM
RE: Electronic variable vane control - by aaa - 01-24-2011, 05:04 PM
RE: Electronic variable vane control - by Spaceraver - 01-25-2011, 04:53 AM
RE: Electronic variable vane control - by winmutt - 01-25-2011, 09:40 AM
RE: Electronic variable vane control - by 300D50 - 01-25-2011, 12:01 PM
RE: Electronic variable vane control - by winmutt - 01-25-2011, 05:45 PM
RE: Electronic variable vane control - by MTUPower - 01-25-2011, 07:15 PM
RE: Electronic variable vane control - by aaa - 01-25-2011, 07:21 PM
RE: Electronic variable vane control - by winmutt - 01-26-2011, 06:28 PM
RE: Electronic variable vane control - by tomnik - 01-27-2011, 12:45 AM
RE: Electronic variable vane control - by Syncro_G - 01-27-2011, 10:17 AM
RE: Electronic variable vane control - by 300D50 - 01-27-2011, 10:43 AM
RE: Electronic variable vane control - by aaa - 02-01-2011, 08:01 PM
RE: Electronic variable vane control - by winmutt - 03-04-2011, 09:38 PM
RE: Electronic variable vane control - by 300D50 - 03-04-2011, 11:45 PM
RE: Electronic variable vane control - by winmutt - 03-07-2011, 10:14 AM
RE: Electronic variable vane control - by 300D50 - 03-07-2011, 02:46 PM
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