AUTOMOTIVE COMBINATION SENSOR

摘要

Systems are provided for EGR mass and air mass estimation during steady state and transient operations. By utilizing a combination sensor comprising of a manifold absolute pressure sensing element and a differential pressure sensing element sharing a common pressure chamber with connections to the intake manifold, errors in EGR mass estimation may be reduced.

主权项

1. A system, comprising:
an intake manifold; an exhaust gas recirculation passage coupled to the intake manifold with an exhaust gas recirculation valve; and a sensor housing coupled directly to the intake manifold, with an absolute pressure sensing element and a differential pressure sensing element sharing a connection to the intake manifold.