Sensor
AssigneeIsuzu Motors Limited
InventorTadashi UCHIYAMA
Life of this patent
Estimating the term…
Abstract
The sensor includes: a collection part 30L, 30M, 30S in which, a plurality of filter members for collecting particulate matter in exhaust gas are arranged in descending order of porosity from an exhaust upstream side to an exhaust downstream side of the exhaust gas; a pair of electrodes 32, 33 which is arranged to each of the plurality of filter members 30L, 30M, 30S and facing each other with the plurality of filter members interposed therebetween; and estimation means 42 to 44 far estimating a particulate matter amount collected on each of the plurality of filter members having different porosities based on a capacitance change amount between the pair of electrodes 32, 33.
Claims13
A sensor comprising:
- a collection part in which a plurality of filter members, which are for collecting particulate matter in exhaust gas and have different porosities from each other, are arranged in descending order of the porosity from an exhaust upstream side to an exhaust downstream side of the exhaust gas;
- a pair of electrodes which is arranged to each of the plurality of filter members and facing each other with the plurality of filter members interposed therebetween;
- and
- an estimation unit which estimates a particulate matter amount collected on each of the plurality of filter members having the different porosities from each other based on a capacitance change amount between the pair of electrodes.
(canceled)
A sensor comprising:
- a collection part in which a plurality of filter members, which are for collecting particulate matter in exhaust gas and have different physical properties from each other, are arranged in descending order of the physical property from an exhaust upstream side to an exhaust downstream side of the exhaust gas;
- a pair of electrodes which are arranged to each of the plurality of filter members and facing each other with the plurality of filter members interposed therebetween;
- and
- a control unit,
- wherein the physical property is a porosity or an average pore size;
- and
- wherein the control unit operates to execute the following processing:
- estimation processing for estimating a particulate matter amount collected on each of the plurality of filter members having the different physical properties based on a capacitance change amount between the pair of electrodes.
A sensor comprising:
- a collection part in which a plurality of filter members, which are for collecting particulate matter in exhaust gas and have different average pore sizes from each other, are arranged in descending order of the average pore size from an exhaust upstream side to an exhaust downstream side of the exhaust gas;
- a pair of electrodes which is arranged to each of the plurality of filter members and facing each other with the plurality of filter members interposed therebetween;
- and
- an estimation unit which estimates a particulate matter amount collected on each of the plurality of filter members having the different average pore sizes from each other based on a capacitance change amount between the pair of electrodes.
Dependencies are inferred from the claim text.