About 43 results
https://drivepatents.com/patents/1393947 · 18 Dec 2024
A first output limit value (P1) is determined as an intersection point of a knock-limit output line (L1) which is set according to an exhaust gas recirculation rate and ignition timing and an exhaust-temperature-limit output line (L2) which is set accordin...
https://drivepatents.com/patents/941735 · 15 Jun 2016
A method for controlling an EGR system includes determining whether diagnosis conditions for an EGR cooler are satisfied while the EGR system operates. The EGR system is turned off when the diagnosis conditions for the EGR cooler are satisfied and a retard...
https://drivepatents.com/patents/942119 · 8 Jun 2016
The invention relates to an exhaust system state detection device that has a simple configuration and can effectively detect an exhaust gas temperature. The exhaust system state detection device includes an intake air oxygen concentration sensor (32) that ...
https://drivepatents.com/patents/943777 · 4 May 2016
An EGR control unit (34S), in accelerating an engine, closes an EGR valve (19) to stop EGR, in a case where an increased amount (Q) of a fuel injection amount (Q) detected by a fuel injection detection unit (31S) is larger than a preset first threshold val...
https://drivepatents.com/patents/956033 · 4 Nov 2015
An object of the present disclosure is to provide a control method and apparatus which are capable of stably securing an exhaust gas recirculation (EGR) flow rate for implementing low temperature combustion by expanding a control range of EGR, and in order...
https://drivepatents.com/patents/948770 · 30 Sep 2015
A control device for a diesel engine that is capable of restraining deterioration of a combustion state in a wide range of temperature environment conditions, in a diesel engine including an EGR device. In the control device for a diesel engine including t...
https://drivepatents.com/patents/948769 · 30 Sep 2015
An object of this invention is to enhance the accuracy of control of an EGR rate or an EGR amount by actuation of an EGR valve in an internal combustion engine in which an exhaust passage and an intake passage are connected through the EGR valve. To achiev...
https://drivepatents.com/patents/966770 · 3 Dec 2014
The present invention relates to a control unit of an internal combustion engine capable of performing a coordinate control of an exhaust gas recirculation (hereinafter abbreviated as "EGR") gas supply amount by an EGR apparatus and a supercharging amount ...
https://drivepatents.com/patents/966761 · 3 Dec 2014
An object of this invention is to provide an exhaust circulation apparatus for an internal combustion engine that, in an internal combustion engine that performs homogeneous combustion, can improve fuel consumption and suppress the amount of discharged NOx...
https://drivepatents.com/patents/970630 · 3 Sep 2014
A spark ignition internal combustion engine includes an exhaust gas reflux device capable of refluxing exhaust gas having passed through a catalyst for exhaust gas purification to an intake passage, an ignition timing control means for setting an ignition ...