The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 10, 2019

Filed:

Feb. 15, 2019
Applicant:

Bombardier Recreational Products Inc., Valcourt, CA;

Inventor:

Jean-Philippe Houle, Sherbrooke, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/08 (2006.01); B60W 10/06 (2006.01); B60W 10/107 (2012.01); F02D 41/16 (2006.01); F02D 41/02 (2006.01); F02D 11/10 (2006.01); F02D 41/00 (2006.01); F16H 63/50 (2006.01); B60W 30/18 (2012.01);
U.S. Cl.
CPC ...
F02D 41/08 (2013.01); B60W 10/06 (2013.01); B60W 10/107 (2013.01); B60W 30/18136 (2013.01); F02D 11/106 (2013.01); F02D 41/0002 (2013.01); F02D 41/0215 (2013.01); F02D 41/16 (2013.01); F16H 63/50 (2013.01); B60W 2510/104 (2013.01); B60W 2710/0644 (2013.01); B60Y 2300/18133 (2013.01); F02D 2200/0404 (2013.01); F02D 2200/501 (2013.01); F02D 2200/602 (2013.01);
Abstract

A method for controlling an engine of a vehicle going downhill with a throttle operator in an idle position, and a driven pulley of a CVT initially having a driven pulley speed below a predetermined driven pulley speed, includes: determining a first speed, the first speed being proportional to the driven pulley speed; as the driven pulley speed increases and the driven pulley speed is below the predetermined driven pulley speed, increasing an actual engine speed as the driven pulley speed increases; the actual engine speed being an engagement speed when the driven pulley speed is the predetermined driven pulley speed; and as the driven pulley speed continues to increase and the driven pulley speed is above the predetermined driven pulley speed: controlling the engine to operate under conditions corresponding to an engine braking speed thereby causing engine braking, the engine braking speed being less than the actual engine speed.


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