公开(公告)号：US09771955B2

公开(公告)日：2017-09-26

申请号：US15333625

申请日：2016-10-25

Applicant: BorgWarner Inc.

Inventor： Jeffrey J. Waterstredt ,  Christopher Spangler ,  Jason Nienstedt

IPC: B60W10/04 ,  F15B1/033 ,  F16H61/00

CPC classification number: F15B1/033 ,  F16H61/0021 ,  F16H2061/0034

Abstract: A system and method for fast fill of a hydraulic accumulator used in an automatic transmission includes providing an active fast fill mechanism fluidly connected to a hydraulic accumulator and a hydraulic system of the automatic transmission, providing an electronic control module in communication with the active fast fill mechanism, activating, by the electronic control module, the active fast fill mechanism to allow the hydraulic accumulator to fill with fluid from the hydraulic system, filling, by the active fast fill mechanism, the hydraulic accumulator with fluid, and de-activating, by the electronic control module, the active fast fill mechanism to stop filling the hydraulic accumulator with fluid from the hydraulic system during stop/start engine events of a vehicle.