Constant engine torque strategy for an improved catalyst heating phase
US-2024262341-A1 · Aug 8, 2024 · US
Control apparatus for hybrid vehicle
US9026295B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9026295-B2 |
| Application number | US-201314070051-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 1, 2013 |
| Priority date | Nov 1, 2012 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A control apparatus for a hybrid vehicle which is provided with an engine and an electric motor each functioning as a drive power source, and a clutch selectively connecting the engine and the electric motor to each other, said control apparatus being configured to switch a drive mode of the hybrid vehicle between an engine-driven running with at least said engine of the drive power source consisting of the engine and said electric motor used as the drive power source and with said clutch placed in a fully engaged state, and an electric-motor-driven running with said electric motor used as the drive power source and with said clutch placed in a released state, includes: a clutch temperature calculating portion configured to calculate, during said engine-driven running, an estimated temperature of said clutch upon a next engaging action of the clutch for switching of said drive mode from the following electric-motor-driven running back to the engine-driven running; and a switching control portion configured to continue the engine-driven running while inhibiting a releasing action of said clutch if said estimated temperature of the clutch calculated by said clutch temperature calculating portion is not lower than a predetermined overheat threshold value.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control apparatus for a hybrid vehicle which is provided with an engine and an electric motor each functioning as a drive power source, and a clutch selectively connecting the engine and the electric motor to each other, said control apparatus being configured to switch a drive mode of the hybrid vehicle between an engine-driven running with at least said engine of the drive power source consisting of the engine and said electric motor used as the drive power source and with said clutch placed in a fully engaged state, and an electric-motor-driven running with said electric motor used as the drive power source and with said clutch placed in a released state, comprising: a clutch temperature calculating portion configured to calculate, during said engine-driven running, an estimated temperature of said clutch upon a next engaging action of the clutch for switching of said drive mode from the following electric-motor-driven running back to the engine-driven running; and a switching control portion configured to continue the engine-driven running while inhibiting a releasing action of said clutch if said estimated temperature of the clutch calculated by said clutch temperature calculating portion is not lower than a predetermined overheat threshold value. 2. The control apparatus according to claim 1 , wherein said clutch is a wet-type multiple-disc friction clutch having friction plates lubricated by a lubricant, and the estimated temperature of said clutch is calculated on the basis of a slipping speed of said clutch, an engaging torque of said clutch, and a temperature of said lubricant for lubricating the clutch.
Assignees
Inventors
Classifications
- B60K6/48Primary
Parallel type · CPC title
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
- B60W20/40Primary
Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)} · CPC title
Characterized by control of driveline clutch · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9026295B2 cover?
- A control apparatus for a hybrid vehicle which is provided with an engine and an electric motor each functioning as a drive power source, and a clutch selectively connecting the engine and the electric motor to each other, said control apparatus being configured to switch a drive mode of the hybrid vehicle between an engine-driven running with at least said engine of the drive power source cons…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60K6/48. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 05 2015 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).