Exhaust gas control apparatus and method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsShinji Kamoshita, Shigeki Nakayama, Hiromi Hiramatsu, Hiroyuki Murai
Life of this patent
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Abstract
An exhaust gas control apparatus includes: a fuel supply portion that is provided so as to supply fuel to a portion of an exhaust passage, which is upstream of an exhaust gas purification member provided in the exhaust passage; a heating portion that is disposed between the fuel supply portion and the exhaust gas purification member; and a control portion that controls an amount of electric power that is supplied to the heating portion, based on an exhaust gas temperature and an exhaust gas flow rate.
Claims7
An exhaust gas control apparatus, comprising:
- an exhaust gas purification member that is provided in an exhaust passage;
- a fuel supply portion that is provided so as to supply fuel to a portion of the exhaust passage, which is upstream of the exhaust gas purification member;
- a heating portion that is disposed between the fuel supply portion and the exhaust gas purification member;
- and
- a control portion that controls an amount of electric power that is supplied to the heating portion, based on an exhaust gas temperature and an exhaust gas flow rate.
A method for controlling an exhaust gas control apparatus which includes an exhaust gas purification member that is provided in an exhaust passage, a fuel supply portion that is provided so as to supply fuel to a portion of the exhaust passage, which is upstream of the exhaust gas purification member, and a heating portion that is disposed between the fuel supply portion and the exhaust gas purification member, the method comprising:
- detecting an exhaust gas temperature;
- detecting an exhaust gas flow rate;
- and
- controlling an amount of electric power that is supplied to the heating portion, based on the exhaust gas temperature and the exhaust gas flow rate.
Dependencies are inferred from the claim text.