Dual clutch powertrain architecture
US-9352738-B2 · May 31, 2016 · US
Vehicle travel control device
US9656676B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9656676-B2 |
| Application number | US-201214439380-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 31, 2012 |
| Priority date | Oct 31, 2012 |
| Publication date | May 23, 2017 |
| Grant date | May 23, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A running control device of a vehicle including an engine, a connecting/disconnecting device separating the engine and wheels, and a transmission transmitting power of the engine toward the wheels, the running control device of a vehicle being configured to execute a normal running mode performed by using the power of the engine with the engine and the wheels coupled, a free-run inertia running mode that is an inertia running mode performed by separating the engine and the wheels and stopping the engine during running, and a neutral inertia running mode that is an inertia running mode performed by separating the engine and the wheels and operating the engine in a self-sustaining manner during running, the running control device of a vehicle setting a gear ratio of the transmission on a high vehicle speed side in the case of return from the free-run inertia running mode to the normal running mode.
First claim
Opening claim text (preview).
The invention claimed is: 1. A running control device of a vehicle including an engine, a connecting/disconnecting device separating the engine and wheels, and a transmission transmitting power of the engine toward the wheels, the running control device being configured to execute a normal running mode performed by using the power of the engine with the engine and the wheels coupled, a free-run inertia running mode performed by separating the engine and the wheels and stopping the engine during running, and a neutral inertia running mode performed by separating the engine and the wheels and operating the engine in a self-sustaining manner during running, the running control device setting a gear ratio of the transmission on a high vehicle speed side in the case of return from the free-run inertia running mode to the normal running mode as compared to the case of return from the neutral inertia running mode to the normal running mode. 2. The running control device of claim 1 , wherein the running control device includes a condition that is an increase in a drive demand amount as one of a plurality of conditions for returning to the normal running mode, the running control device executes a control of setting the gear ratio of the transmission on the high vehicle speed side at the time of return to the normal running mode associated with the increase in the drive demand amount, and the running control device sets the gear ratio of the transmission to a normal running mode gear ratio for the normal running mode at the time of return to the normal running mode associated with a condition other than the increase in the drive demand amount. 3. The running control device of claim 1 , wherein the running control device has a predefined relationship determining a normal running mode gear ratio of the transmission for the normal running mode, and wherein the running control device sets the gear ratio of the transmission on the high vehicle speed side relative to the normal running mode gear ratio determined from the predefined relationship in the case of return from the free-run inertia running mode to the normal running mode as compared to the case of return from the neutral inertia running mode to the normal running mode. 4. The running control device of claim 1 , wherein the running control device has a predefined relationship for free-run inertia running mode determining a free-run inertial running mode gear ratio of the transmission at the time of return from the free-run inertia running mode to the normal running mode and a predefined relationship for neutral inertia running mode determining a neutral inertial running mode gear ratio of the transmission at the time of return from the neutral inertia running mode to the normal running mode, and wherein the relationship for free-run inertia running mode has the free-run inertial running mode gear ratio of the transmission set on the high vehicle speed side as compared to the relationship for neutral inertia running mode. 5. A running control device of a vehicle including an engine, a connecting/disconnecting device separating the engine and wheels, and a transmission transmitting power of the engine toward the wheels, the running control device being configured to execute a normal running mode performed by using the power of the engine with the engine and the wheels coupled, a free-run inertia running mode that is an inertia running mode performed by separating the engine and the wheels and stopping the engine during running, and a neutral inertia running mode that is an inertia running mode performed by separating the engine and the wheels and operating the engine in a self-sustaining manner during running, the running control device having a predefined relationship determining a normal running mode gear ratio of the transmission for the normal running mode, a gear ratio of the transmission being set on a high vehicle speed side relative to the normal running mode gear ratio determined from the predefined relationship in the case of return from the free-run inertia running mode to the normal running mode as compared to the case of return from the neutral inertia running mode to the normal running mode. 6. A running control device of a vehicle including an engine, a connecting/disconnecting device separating the engine and wheels, and a transmission transmitting power of the engine toward the wheels, the running control device being configured to execute a normal running mode performed by using the power of the engine with the engine and the wheels coupled, a free-run inertia running mode that is an inertia running mode performed by separating the engine and the wheels and stopping the engine during running, and a neutral inertia running mode that is an inertia running mode performed by separating the engine and the wheels and operating the engine in a self-sustaining manner during running, the running control device having a predefined relationship for free-run inertia running mode determining a free-run inertial running mode gear ratio of the transmission at the time of return from the free-run inertia running mode to the normal running mode and a predefined relationship for neutral inertia running mode determining a neutral inertial running mode gear ratio of the transmission at the time of return from the neutral inertia running mode to the normal running mode, the relationship for free-run inertia running mode having the free-run inertial running mode gear ratio of the transmission set on the high vehicle speed side as compared to the relationship for neutral inertia running mode. 7. The running control device of claim 1 , wherein a neutral inertial running mode gear ratio of the transmission at the time of return from the neutral inertia running mode to the normal running mode is a normal running mode gear ratio of the transmission for the normal running mode.
Assignees
Inventors
Classifications
Adapting the ratios to special vehicle conditions · CPC title
including control of change-speed gearings · CPC title
characterised by the method for generating shift signals · CPC title
- B60W30/18172Primary
Preventing, or responsive to skidding of wheels · CPC title
Signals to an engine or motor · CPC title
Patent family
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9656676B2 cover?
- A running control device of a vehicle including an engine, a connecting/disconnecting device separating the engine and wheels, and a transmission transmitting power of the engine toward the wheels, the running control device of a vehicle being configured to execute a normal running mode performed by using the power of the engine with the engine and the wheels coupled, a free-run inertia running…
- Who is the assignee on this patent?
- Mitsuyasu Masaki, Kim Jonggap, Kuroki Rentaro, and 9 more
- What technology area does this patent fall under?
- Primary CPC classification B60W30/18172. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 23 2017 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).