About 199 results
https://drivepatents.com/patents/992063 · 10 Apr 2013
Provided is an exhaust gas purification system with which the frequency of DPF regeneration requests can be reduced during LLIR, thereby improving convenience. In an exhaust gas purification system 1 including a control unit 40 that performs regeneration c...
https://drivepatents.com/patents/992047 · 10 Apr 2013
Provided is an exhaust gas purification system in an upland area capable of maintaining engine performance when a vehicle travels in a normal drive mode in an upland area, securing the amount of oxygen required for post-injection when the vehicle is in a r...
https://drivepatents.com/patents/992041 · 10 Apr 2013
An exhaust gas purifying system is provided to, during automatic regeneration with a vehicle running, control post injection accurately through PID control even when acceleration and deceleration are repeated or when an exhaust brake valve is closed. An ex...
https://drivepatents.com/patents/992015 · 10 Apr 2013
Provided is an exhaust gas purification system which is capable of accurately controlling idling mode automatic regeneration when a vehicle is stopped during running mode automatic regeneration and also preventing the temperature of exhaust gas from oversh...
https://drivepatents.com/patents/992005 · 10 Apr 2013
A DPF system that suppresses clogging of a DPF and enhances convenience is provided. The DPF system includes: accumulated PM quantity estimation means 6 for estimating an accumulated PM quantity in an idle state; and a long low idle forced regeneration uni...
https://drivepatents.com/patents/992018 · 10 Apr 2013
Provided is an SCR system that enables reduction in burden on a battery resulting from energization of a heater and a decrease in time during which an NOx concentration cannot be detected. The SCR system includes: an SCR device 103; a dosing valve 104; NOx...
https://drivepatents.com/patents/992258 · 27 Mar 2013
Provided is an exhaust gas purification system that can prevent adhesion of urea water in a dosing valve during DPF regeneration. An exhaust gas purification system 100 includes a DCU 126 that controls a supply module 106 to inject or return urea water ins...
https://drivepatents.com/patents/992218 · 27 Mar 2013
Provided is a competence diagnosis system for a urea water temperature sensor that can limit a diagnosis during a cold start. A competence diagnosis system for a urea water temperature sensor 129 includes a competence diagnosis unit 127 that diagnoses a fa...
https://drivepatents.com/patents/985443 · 27 Mar 2013
Provided is an SCR system that can rapidly cancel engine start prohibition after filling a urea aqueous solution as well as preventing improper indication of deficiency of the urea aqueous solution by variation in a solution level in a urea aqueous solutio...
https://drivepatents.com/patents/985436 · 27 Mar 2013
Provided are a NOx sensor diagnosis apparatus capable of diagnosing the appropriateness of a NOx sensor by considering environmental conditions and preventing misdiagnosis, and an SCR system. A NOx sensor diagnose apparatus, which diagnoses a NOx sensor 11...