Typical sensors include the following: mass airflow, exhaust oxygen, engine revolutions per minute, manifold absolute pressure, barometric pressure, coolant temperature, throttle position, knock, vehicle speed, air-conditioning load, power steering load, crankshaft position, and camshaft position.
This paper proposes a system identification method to obtain a virtual in-cylinder air-to-fuel ratio (AFR) sensor using the measured engine variables of engine speed, manifold absolute pressure and fuel pulse width.
Due to the proposed digital temperature compensation method, temperature output error of pressure sensors was significantly reduced (typically from 0.15% FSO/°C to 0.05% FSO/°C, based on calibration of 29482 manifold absolute pressure sensors).
Two approaches for the ICE speed control are investigated: (i) a single loop gain-scheduled proportional integral (PI) controller and (ii) a dual loop control based on an internal gain-scheduled Manifold Absolute Pressure (MAP) feedback loop and an outer loop composed of a gain-scheduled PI controller.
Each PEMS was comprised of two parallel five-gas analyzers, a PM measurement system, and an engine sensor array with sensors to measure engine speed (RPM), manifold absolute pressure (MAP), and intake air temperature (IAT).
The engine was run at 1800 rpm and a manifolds absolute pressure of 61.5 kPa.
The engine was run at 3000 rpm and a manifolds absolute pressure of 37.5 kPa with the stoichiometric excess air ratio.
Each such inference, however, involves concluding "from the transcendental concept of the subject, which contains nothing manifold, the absolute unity of this subject itself, of which I possess no concept whatsoever" (A340/B398).
The experiments have been performed at the different hydrogen volumetric percentage (0 40%), ignition timing (22 30oBTDC), A/F ratio (1 1.73) and manifold-absolute pressure (60 137 kPa) at various engine load and speed.
Kant examined the perfection of dynamic interactivity and its sustaining divine unit in the Essay on Optimism (1759), arguing that relative natural perfection amounts to the harmony of a manifold with a rule, and that absolute divine perfection is such that its manifold contains within itself the ground of reality (2 30 31note).
It's worth stressing that while DA opposes fundamental absolute quantities, it is potentially neutral on the question of manifold substantivalism (indeed, this topic barely appears in Brown 2005).
