MAIN PUMP TO AUXILIARY PUMP HAND-OFF STRATEGY FOR MAINTAINING HYDRAULIC PRESSURE IN HYBRID TRANSMISSION
A method and system of providing hydraulic pressure during a transition from gas-powered engine operation to electric motor operation in a hybrid electric vehicle. During the transition, main pressure arising from operation of a gas-powered engine with a main pump is matched with auxiliary pressure...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
11.07.2013
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Subjects | |
Online Access | Get full text |
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Summary: | A method and system of providing hydraulic pressure during a transition from gas-powered engine operation to electric motor operation in a hybrid electric vehicle. During the transition, main pressure arising from operation of a gas-powered engine with a main pump is matched with auxiliary pressure arising from operation of a battery-powered electric motor with an auxiliary pump. After matching the main and auxiliary pressures, the auxiliary pressure is boosted to an operational pressure in response to a triggering event. |
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Bibliography: | Application Number: US201213344895 |