Accessory drive for hybrid vehicles
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United States of America Patent
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-
Nov 25, 2014
Issued Date -
N/A
app pub date -
Jun 17, 2011
filing date -
Jun 17, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A vehicle includes an internal combustion engine, a first hydraulic pump/motor coupled with the internal combustion engine, and a second hydraulic pump/motor is coupled with at least one driven wheel of the vehicle. A clutch establishes a driving connection between the first hydraulic pump/motor and the internal combustion engine, and selectively interrupts the driving connection when disengaged. At least one vehicle accessory device is coupled to the first hydraulic pump/motor. The at least one vehicle accessory device is operable under power of the internal combustion engine when the clutch is engaged and the internal combustion engine is running, and the at least one vehicle accessory device is operable directly by the first hydraulic pump/motor operating in a motor mode when the clutch is disengaged, regardless of whether or not the internal combustion engine is running. A corresponding method of operating the vehicle is also provided.
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