Control system for hybrid vehicle
US-2016176392-A1 · Jun 23, 2016 · US
Vehicle
US2016185343A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016185343-A1 |
| Application number | US-201414910510-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 31, 2014 |
| Priority date | Aug 8, 2013 |
| Publication date | Jun 30, 2016 |
| Grant date | — |
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.
Even when a motor fails in an EV travel mode in which a clutch is disengaged, an amount of hydraulic oil that is supplied to the clutch can be secured by reducing a transmission leaked amount. Accordingly, the clutch can be engaged, and an oil pump can be driven by power of an engine. Thus, an evacuation travel by the engine is allowed when the motor fails in the EV travel mode.
First claim
Opening claim text (preview).
1 . A vehicle comprising: an engine; a transmission; a drive wheel; a first motor provided in a power transmission path between the engine and the drive wheel, the power transmission path including the transmission; a clutch configured to disconnect the engine from the first motor by being disengaging; a mechanical oil pump connected to a rotary member disposed on the power transmission path between the clutch and the drive wheel, the mechanical oil pump configured to be driven by rotation of the rotary member to supply hydraulic oil to the clutch and the transmission; and an electronic control unit configured to control an operation related to the transmission, so as to reduce an amount of the hydraulic oil that is leaked due to the operation related to the transmission when the first motor fails in a motor travel mode in which the clutch is disengaged and only the first motor is used as a drive power source. 2 . The vehicle according to claim 1 , further comprising: a hydraulic control circuit configured to control the operation related to the transmission via a solenoid valve, wherein the electronic control unit is configured to control the solenoid valve so as to minimize the amount of the hydraulic oil that is leaked due to the operation related to the transmission. 3 . The vehicle according to claim 1 , wherein the electronic control unit is configured to control the operation related to the transmission so as to reduce the amount of the hydraulic oil that is leaked due to the operation related to the transmission and so as to increase an amount of the hydraulic oil supplied to the clutch. 4 . The vehicle according to claim 1 , further comprising: a second motor for an oil pump; and an electric oil pump driven by rotation of the second motor to supply the hydraulic oil to the clutch and the transmission, the rotation of the second motor being independent of the rotation of the rotary member disposed on the power transmission path between the clutch and the drive wheel. 5 . The vehicle according to claim 4 , wherein the electronic control unit is configured to, when the first motor fails, control the operation related to the transmission so as to reduce the amount of the hydraulic oil that is leaked due to the operation related to the transmission and is configured to increase the amount of the hydraulic oil supplied to the clutch by the electric oil pump when the first motor fails.
Assignees
Inventors
Classifications
Hybrid vehicles · CPC title
Specific drive or transmission adapted for hev · CPC title
Other features of vehicle sub-units · CPC title
Hybrid vehicles · CPC title
Clutches · 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 US2016185343A1 cover?
- Even when a motor fails in an EV travel mode in which a clutch is disengaged, an amount of hydraulic oil that is supplied to the clutch can be secured by reducing a transmission leaked amount. Accordingly, the clutch can be engaged, and an oil pump can be driven by power of an engine. Thus, an evacuation travel by the engine is allowed when the motor fails in the EV travel mode.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60W20/50. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jun 30 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).