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Patent Searching and Data


Title:
METHOD AND SYSTEM FOR ELIMINATING FUEL CONSUMPTION DURING DYNAMIC BRAKING OF ELECTRIC DRIVE MACHINES
Document Type and Number:
WIPO Patent Application WO/2012/024251
Kind Code:
A3
Abstract:
A drive system (100, 100a-c) for an electric drive machine (102, 102a-c) having an engine (104, 104a-c), a generator (106, 106a-c), a motor (108, 108a-c), final drive wheels (110, 110a-c) and auxiliary devices (116, 116a-c) is provided. The drive system (100, 100a-c) may include an inverter circuit (118, 118a-c) and an auxiliary driver (120, 120a-c). The inverter circuit (118, 118a-c) may be coupled to each of the generator (106, 106a-c) and the motor (108, 108a-c). The auxiliary driver (120, 120a-c) may be coupled to each of the generator (106, 106a-c) and the auxiliary devices (116, 116a-c). The inverter circuit (118, 118a-c) and the auxiliary driver (120, 120a-c) may be configured to automatically communicate power from the engine (104, 104a-c) and any power from the auxiliary devices (116, 116a-c) to the motor (108, 108a-c) in a propel mode, and automatically communicate power from the motor (108, 108a-c) to the engine (104, 104a-c), and optionally to a hybrid system (132) if applicable, in a dynamic braking mode so as to minimize fuel consumption during the dynamic braking mode.

Inventors:
MARCHAND, David, G. (10926 North Higherest Lane, Dunlap, IL, 61525, US)
SELVEY, Dustin, C. (1122 Brookview Court, Peoria, IL, 61615, US)
Application Number:
US2011/047835
Publication Date:
November 01, 2012
Filing Date:
August 16, 2011
Export Citation:
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Assignee:
CATERPILLAR INC. (100 N.E. Adams Street, Peoria, IL, 61629-9510, US)
MARCHAND, David, G. (10926 North Higherest Lane, Dunlap, IL, 61525, US)
SELVEY, Dustin, C. (1122 Brookview Court, Peoria, IL, 61615, US)
International Classes:
H02P3/16; B60W10/18
Foreign References:
KR100419937B12004-02-25
JPS5098405U1975-08-15
JP2005012900A2005-01-13
KR20100028403A2010-03-12
US7034480B22006-04-25
US6488608B22002-12-03
EP2193969A12010-06-09
Attorney, Agent or Firm:
WATERFIELD, L., Glenn et al. (100 N.E. Adams Street, Peoria, IL, 61629-9510, US)
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