Mistä arvot testaustuloksille ? Combo D

[Lapiolalli]

Mitä se map arvo on sammuksissa. Tietääkseni toi map anturin heittämä vaikuttaa kuormitus lukuun joka on laskennallinen

Tässä sammuksissa :

Rpm ....... 0
Load_PCT ...... 0 %
ECT ....... 14 °C
MAP .......... 99 kPa

VSS........ 0 km/h
IAT........... 20 °C
MAF....... 0,69 g/s

MIL_Dist... 0 km
FRP ... 1310 kPa
EGR_PCT.... 0,0 %
FLI ......... 25,1 %

Baro ....... 98 kPa
APP_D.... 0,0 %
APP_E.... 0,0 %

[shamrock]

MAP:in arvo ei muutu ollenkaan?

[ovc2z22yh]

In the diesel engine load is controlled by adjusting the amount of fuel injected into the cylinder each operating cycle. Diesel engines always operate with an excess of air due to the type of combustion, and so to get more power, more fuel is injected. Limits to power can be poor combustion with too much fuel, mechanical load restrictions due to high pressure and other factors. In modern diesel engines this is done with electronic control of fuel injectors.

Dieselissä load% on annosteltu p.a.% max.syötöstä eikä ilmamassan määrä siihen paljoa vaikuta kunhan sitä on tarpeeksi (Diesel engines always operate with an excess of air).

[hukka]

Ihan ekana vaihtasin map anturin tai koittaisin liotella puhtaaksi karstasta..
Edelliseen eikös ilmamassa mittarilla varusttu diisselin polttoainamäärä nimen omaan ohjata ilmamassan mukaan?

[ovc2z22yh]

Tuossa Subarun EGR noen + huohotuksen tukkima MAP sensori:


Edelliseen eikös ilmamassa mittarilla varusttu diisselin polttoainamäärä nimen omaan ohjata ilmamassan mukaan?
Ei pelkästään, Electronic diesel control (EDC) is subdivided into three system blocks: sensors/setpoint generators, ECU, and actuators.
Unlike gasoline engines the air flow is not throttled, such avoiding low pressure charge losses and the combustion is performed with large air excess factors of about 1.2 <lambda< 10. The torque(load) is mainly determined by the injected fuel mass. https://link.springer.com/chapter/10.10 ... 03972-1_15

To keep truck reliable we look at mass airflow, engine speed, boost, charge air temperature, …