Invention Grant
- Patent Title: System and method for fast fill of accumulator for automatic transmissions
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Application No.: US15333625Application Date: 2016-10-25
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Publication No.: US09771955B2Publication Date: 2017-09-26
- Inventor: Jeffrey J. Waterstredt , Christopher Spangler , Jason Nienstedt
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BORGWARNER INC.
- Current Assignee: BORGWARNER INC.
- Current Assignee Address: US MI Auburn Hills
- Agency: Howard & Howard Attorneys PLLC
- Main IPC: B60W10/04
- IPC: B60W10/04 ; F15B1/033 ; F16H61/00

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.
Public/Granted literature
- US20170130740A1 SYSTEM AND METHOD FOR FAST FILL OF ACCUMULATOR FOR AUTOMATIC TRANSMISSIONS Public/Granted day:2017-05-11
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