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Method for controlling a rolling or coasting function of a vehicle
US8939870B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939870-B2 |
| Application number | US-201013505539-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 13, 2010 |
| Priority date | Nov 3, 2009 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A method of controlling a rolling or coasting function of a vehicle with a drive train having a drive motor, an automatic or automated transmission, a controllable shifting means, a brake device and a drive speed control device. The vehicle speed is regulated by the drive speed control device and the braking device is activated, as needed, when driving on a downhill gradient section. To effectively and reliably use the rolling or coasting function in suitable driving situations, taking into account the influence of the driving speed control device, a rolling or a coasting condition for a downhill gradient taper is checked, when driving on the downhill gradient section, and, when the rolling or coasting condition is satisfied, the transmission controls interrupt the flow of power in the drive train before the vehicle entering a flat area, and/or before the driving speed control device generates an engine torque request.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of controlling either a rolling or a coasting function of a vehicle for a drive train comprising a drive motor, either an automatic or an automated transmission, that is controllable by transmission controls with controllable shifting for interrupting a flow of power in the drive train, a brake device, a drive speed control device, a current roadway incline (α_Fb), vehicle speed (v_F) and vehicle acceleration (a_F) are determined, and the vehic…
Assignees
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Classifications
- B60W10/02Primary
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
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 US8939870B2 cover?
- A method of controlling a rolling or coasting function of a vehicle with a drive train having a drive motor, an automatic or automated transmission, a controllable shifting means, a brake device and a drive speed control device. The vehicle speed is regulated by the drive speed control device and the braking device is activated, as needed, when driving on a downhill gradient section. To effecti…
- Who is the assignee on this patent?
- Wurthner Maik, Sauter Ingo, Staudinger Joachim, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B60W10/02. 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).