About 24 results
https://drivepatents.com/patents/1069931 · 15 Feb 2006
This invention relates to estimation of a particulate matter deposit amount in a diesel particulate filter (1) provided in an exhaust passage (7) of a vehicle diesel engine (10). When the vehicle speed exceeds a predetermined vehicle speed, a differential ...
https://drivepatents.com/patents/1076877 · 15 Jun 2005
Method for activation of the regeneration of a particulate filter for a motor vehicle engine, comprising the steps of calculating an estimated value (xM) of a quantity of particulate accumulated in the particulate filter; comparing (8) the estimated value ...
https://drivepatents.com/patents/1083367 · 6 Oct 2004
An engine is equipped with a particulate filter, and a control unit. The control unit controls to regenerate the particulate filter when the trapped amount of particulate in the filter is estimated to have reached a predeterminable amount ( alpha ). The co...
https://drivepatents.com/patents/1084118 · 8 Sep 2004
A map which defines a relationship of an exhaust gas pressure P2 at the outlet of a filter (13) to a load Q and rotation speed Ne of an engine (1) is prepared, and an exhaust gas pressure P1 at the inlet to the filter (13) is determined from a differential...
https://drivepatents.com/patents/1085597 · 14 Jul 2004
A regeneration apparatus comprises a regeneration timing determining section that determines the timing at which an accumulated particulate is combusted to regenerate the particulate filter, and a regeneration mode controlling section that performs a contr...
https://drivepatents.com/patents/1090011 · 28 Jan 2004
A desired value for a lambda signal or its variation is given. An actual value for it is measured. From the comparison between desired- and actual values, a control signal for an actuator is derived. This controls the reaction in the exhaust gas treatment ...
https://drivepatents.com/patents/1094231 · 6 Aug 2003
A particulate filter (4) is provided in an exhaust passage (3) of a diesel engine (1) in order to trap particulate matter in exhaust gas. A controller (11) determines a basic fuel injection amount in response to an accelerator pedal depression amount (S22)...
https://drivepatents.com/patents/1096545 · 23 Apr 2003
The invention relates to a method to control the regeneration of an exhaust filter by raising the temperature of the exhaust gas above a given threshold. The regeneration may especially consist in burning the load of a diesel particulate filter. It is exec...
https://drivepatents.com/patents/1097269 · 26 Mar 2003
The volumetric flowrate (VS) is determined from a second magnitude (W2, F1, F2). This characterizes the flow resistance of a second component (120), e.g. an exhaust silencer, of the exhaust system. Independent claims are included for corresponding equipmen...
https://drivepatents.com/patents/1098531 · 5 Feb 2003
An internal combustion engine (1) has a particle filter (10) with temperature (11,13) and pressure sensors (14,15) and an input air flow meter (6). A control unit (12) receives the data and calculates the trapped mass from a formula which links it with pre...