摘要:
Internal combustion engine (100) and method for operating an internal combustion engine (100), comprising a fluid reservoir (110, 114) connectable to either an intake manifold (192) or an exhaust manifold (101) of the internal combustion engine (100), pumping means (102) for pumping a fluid, and regulating means (111, 130, 150, 160, 171) for directing or controlling the flow of the fluid, wherein the regulating means (111, 130, 150, 160, 171) is configurable to fill the fluid reservoir (110, 114) with fluid pumped by the pumping means (102), wherein the regulating means (111, 130, 150, 160, 171) is configurable to connect the reservoir (110, 114) to either the intake manifold (192) or the exhaust manifold (101) depending on an operating mode of the internal combustion engine (100) for releasing fluid from the reservoir (110, 114) into the intake manifold (192) and the exhaust manifold (101) respectively.
摘要:
A method of operating a combustion engine is described. The combustion engine comprises a cylinder, a piston, an injection valve and a pressure sensor, wherein the cylinder and the piston delimit a combustion chamber. The method comprises injecting fuel with the injection valve into the combustion chamber according to an energizing time (ET), measuring a pressure signal in the combustion chamber with the pressure sensor, determining a first course (51) of a value (Vb1) of an integrated heat release plateau depending on the pressure signal for several energizing times (ET), determining a second course (52) of the value (Vb1) for several energizing times (ET) after a given running time of the combustion engine, evaluating a first and a second offset point (OP1, OP2) of the first and the second course (51, 52), and evaluating a corrected energizing time (ETcorr) depending on the first and the second offset point (OP1, OP2).