VEMS Community Forum

VEMS => Calibration & Mapping => Topic started by: Kamuto on January 03, 2015, 12:48:21 PM

Title: alpha N map compensation
Post by: Kamuto on January 03, 2015, 12:48:21 PM
hello, I have a question again, how can I disable map compensation on pure alpha-N? all tables are based on TPS and I don't have map sensor connected at all, map input on ecu shows about 300kpa, so it multiplies ve table values by 3x or something, how can I get rid of it? 
Title: Re: alpha N map compensation
Post by: Kamuto on January 03, 2015, 01:00:38 PM
Use cases

Pure S / D
VE table: MAP based
Spark table: MAP based
Lambda table: MAP based

Pure Alpha-N
VE table: TPS based
Spark table: TPS based
Lambda table: TPS based

Alpha-N with baro correction
VE table: TPS based with MAP multiplication
important: with map sensor connected in free air or before throttle bodies
Spark table: TPS based
Lambda table: TPS based

Alpha-N with boost compensation, map based spark+lambda all the time
VE table: TPS based with MAP multiplication
Spark table: MAP based
Lambda table: MAP based

Alpha-N with boost compensation, tps based spark+lambda before boost arrives
VE table: TPS based with MAP multiplication
Spark table: TPS based when MAP<=barometric pressure, MAP based above
Lambda table: TPS based when MAP<=barometric pressure, MAP based above
Title: Re: alpha N map compensation
Post by: Kamuto on January 03, 2015, 01:36:19 PM
Seems found it, it just needs to set mao sensor range to 0