Control apparatus for internal combustion engine
US-2015377164-A1 · Dec 31, 2015 · US
Drive control apparatus for providing drive control to a hybrid electric vehicle, and hybrid electric vehicle
US8948949B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948949-B2 |
| Application number | US-201113982770-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 9, 2011 |
| Priority date | Feb 9, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A torque applied to a one-way clutch when a first motor generator and second motor generator are operated in a motor generator drive mode is restrained or prevented from becoming excessively high by setting a first motor generator sharing ratio in response to a driving torque target for the vehicle, by controlling operation of the first motor generator in response to a first motor generator first sharing ratio when vehicle vibrations due to cogging torque are likely to take place, and by reducing the torque from the first motor generator when the driving torque target is large. Torque applied to the one-way clutch which otherwise would become excessively high immediately after engine shutdown, is restrained or prevented by reducing the torque from the first motor generator in response to a second motor generator second sharing ratio when engine downtime is short.
First claim
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The invention claimed is: 1. A drive control apparatus for a hybrid electric vehicle, including an engine, a device for restricting the direction of revolution of an engine output shaft of said engine, a drive shaft connected to a traction wheel, a first motor generator, a second motor generator, and a power split and composition device with four rotary elements coupled to said first motor generator, second motor generator, drive shaft and engine, respectively, the drive control ap…
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Frequently asked questions
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- What does patent US8948949B2 cover?
- A torque applied to a one-way clutch when a first motor generator and second motor generator are operated in a motor generator drive mode is restrained or prevented from becoming excessively high by setting a first motor generator sharing ratio in response to a driving torque target for the vehicle, by controlling operation of the first motor generator in response to a first motor generator fir…
- Who is the assignee on this patent?
- Tagawa Masaaki, Ito Yoshiki, Saito Masakazu, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B60W20/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 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).