Regenerative-braking transmission downshift torque limiting
US-2015360691-A1 · Dec 17, 2015 · US
Method and system for controlling a user requested shift in a hybrid vehicle
US8942876B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942876-B2 |
| Application number | US-201313765771-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 13, 2013 |
| Priority date | Feb 13, 2013 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
Official abstract text for this publication.
A hybrid vehicle has an engine, an electric machine connected to the engine by an upstream clutch, a transmission gearbox connected to the electric machine by a downstream clutch, and a controller. The controller is configured to, in response to a user commanded shift of the transmission, control the electric machine speed to a designated speed based on gearbox output speed and the transmission gear ratio after the shift, thereby synchronizing speeds across the gearbox for the shift. A method for controlling a hybrid vehicle provides, in response to a user commanded shift of an automatic transmission gearbox, controlling an electric machine speed to a target speed based on the transmission gear ratio after the shift where the target speed is synchronized with the transmission gearbox output speed.
First claim
Opening claim text (preview).
What is claimed is: 1. A vehicle comprising: an electric machine connected to an engine by an upstream clutch and to a transmission gearbox by a torque converter with a bypass, downstream clutch; and a controller configured to, in response to a user commanded transmission shift control the electric machine to a designated speed based on gearbox output speed, a gearbox gear ratio after the shift, and a torque converter status, thereby synchronizing speeds across the gearbox for t…
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Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
- B60W20/30Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8942876B2 cover?
- A hybrid vehicle has an engine, an electric machine connected to the engine by an upstream clutch, a transmission gearbox connected to the electric machine by a downstream clutch, and a controller. The controller is configured to, in response to a user commanded shift of the transmission, control the electric machine speed to a designated speed based on gearbox output speed and the transmission…
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification B60W20/30. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 27 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).