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Title: Method for controlling powertrain pumps

Abstract

A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
GM Global Technology Operations LLC (Detroit, MI)
Sponsoring Org.:
USDOE
OSTI Identifier:
1107595
Patent Number(s):
8565970
Application Number:
13/211,775
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60W - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION
DOE Contract Number:  
FC26-08NT04386
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Sime, Karl Andrew, Spohn, Brian L, Demirovic, Besim, Martini, Ryan D, and Miller, Jean Marie. Method for controlling powertrain pumps. United States: N. p., 2013. Web.
Sime, Karl Andrew, Spohn, Brian L, Demirovic, Besim, Martini, Ryan D, & Miller, Jean Marie. Method for controlling powertrain pumps. United States.
Sime, Karl Andrew, Spohn, Brian L, Demirovic, Besim, Martini, Ryan D, and Miller, Jean Marie. Tue . "Method for controlling powertrain pumps". United States. https://www.osti.gov/servlets/purl/1107595.
@article{osti_1107595,
title = {Method for controlling powertrain pumps},
author = {Sime, Karl Andrew and Spohn, Brian L and Demirovic, Besim and Martini, Ryan D and Miller, Jean Marie},
abstractNote = {A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {10}
}

Patent:

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