Regenerative-braking transmission downshift torque limiting
US-2015360691-A1 · Dec 17, 2015 · US
Transmission control device for hybrid vehicle
US9108636B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108636-B2 |
| Application number | US-201213983517-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2012 |
| Priority date | Mar 25, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
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In a transmission control device for a hybrid vehicle, when an engine torque is equal to or less than a predetermined value during a constant speed traveling, a learning engine rotational speed is set to a rotational speed being higher by +α than the present engine rotational speed. Then, a learning engine torque is calculated that corresponds to the learning engine rotational speed, a learning clutch actuator operation amount is obtained that corresponds to the learning clutch torque, and a clutch actuator is operated based on the learning clutch actuator operation amount. Thereafter, when the engine rotational speed and the engine torque are in stable states, a clutch torque value corresponding to the learning clutch actuator operation amount is compensated by a stable engine torque value.
First claim
Opening claim text (preview).
The invention claimed is: 1. A transmission control device for a hybrid vehicle, comprising: an automatic transmission that gear-changes at a plurality of gear ratios the rotation of an input shaft which is adapted to be rotated by an engine torque outputted by an engine mounted on the vehicle, and transmits the rotation to an output shaft rotationally coupled to drive wheels of the vehicle; a clutch that connects or disconnects an output shaft of the engine with respect to the…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9108636B2 cover?
- In a transmission control device for a hybrid vehicle, when an engine torque is equal to or less than a predetermined value during a constant speed traveling, a learning engine rotational speed is set to a rotational speed being higher by +α than the present engine rotational speed. Then, a learning engine torque is calculated that corresponds to the learning engine rotational speed, a learning…
- Who is the assignee on this patent?
- Terakawa Tomomitsu, Hosoi Yasuhiro, Kitamura Yuichiro, and 2 more
- 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 Aug 18 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).