Exhaust heat recovery device
US-2015354438-A1 · Dec 10, 2015 · US
Exhaust heat recovery control device
US9458751B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9458751-B2 |
| Application number | US-201514606408-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 27, 2015 |
| Priority date | Feb 4, 2014 |
| Publication date | Oct 4, 2016 |
| Grant date | Oct 4, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An exhaust heat recovery control device includes a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas and a control unit configured to control the recovered heat adjusting unit so as to prevent or suppress freezing in an exhaust pipe based on a traveling history of a vehicle on which the exhaust heat recovery control device is mounted when the freezing in the exhaust pipe is predicted.
First claim
Opening claim text (preview).
What is claimed is: 1. An exhaust heat recovery control device comprising: a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas; and a control unit configured to determine whether freezing of a liquid in an exhaust pipe occurs based on a past traveling history of a vehicle and to control the recovered heat adjusting unit, on which the exhaust heat recovery control device is mounted, when the freezing in the exhaust pipe is predicted to occur. 2. The exhaust heat recovery control device according to claim 1 , wherein the control unit controls the recovered heat adjusting unit so as to decrease the amount of heat recovered of exhaust gas by the exhaust heat recoverer when a previous traveling time as the traveling history is equal to or shorter than a predetermined reference time. 3. The exhaust heat recovery control device according to claim 1 , wherein the exhaust heat recoverer raises a temperature of a coolant for cooling an engine using the recovered heat of exhaust gas, wherein the recovered heat adjusting unit includes a circulation unit configured to circulate the coolant, and wherein the control unit adjusts the amount of heat recovered of exhaust gas by adjusting an amount of coolant circulated by the circulation unit. 4. The exhaust heat recovery control device according to claim 1 , wherein the recovered heat adjusting unit adjusts the amount of heat recovered by adjusting a flow rate of exhaust gas passing through the exhaust heat recoverer. 5. The exhaust heat recovery control device according to claim 1 , wherein the past traveling history is based on a previous traveling state of the vehicle prior to a present traveling state of the vehicle in which the control unit is controlling the recovered heat adjusting unit. 6. An exhaust heat recovery control device comprising: an actuator that adjusts an amount of heat recovered of exhaust gas by an exhaust heat recoverer that recovers heat of exhaust gas; and circuitry configured to determine whether freezing of a liquid in an exhaust pipe occurs based on a past traveling history of a vehicle and to control the actuator, on which the exhaust heat recovery control device is mounted, when the freezing in the exhaust pipe is predicted to occur.
Assignees
Inventors
Classifications
Profiting from waste heat of exhaust gases · CPC title
measuring the elapsed time · CPC title
the coolant being liquid · CPC title
Outlet manifold · CPC title
Ambient temperature · CPC title
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- What does patent US9458751B2 cover?
- An exhaust heat recovery control device includes a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas and a control unit configured to control the recovered heat adjusting unit so as to prevent or suppress freezing in an exhaust pipe based on a traveling history of a vehicle on which the exhau…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N5/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 04 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).