Invention Grant
- Patent Title: System and method to improve engagement shift quality in automatic transmissions using engagement brake torque control
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Application No.: US14924953Application Date: 2015-10-28
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Publication No.: US09855936B2Publication Date: 2018-01-02
- Inventor: Joseph Bousamra , Charles William Suter , Thaddeus Hill
- Applicant: FORD GLOBAL TECHNOLOGIES, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman P.C.
- Agent James Dottavio
- Main IPC: B60T8/1755
- IPC: B60T8/1755 ; B60T8/17 ; F16H63/40 ; B60T8/24 ; B60T8/32 ; B60T8/52

Abstract:
A method of controlling a vehicle includes, in response to vehicle speed being approximately zero and a driver braking torque request being greater than a park interlock threshold, commanding vehicle brakes to provide an augmented braking torque. The augmented braking torque has a magnitude that is greater than the magnitude of the braking torque request. The braking torque returns to the level of the driver braking torque request following completion of a gear shift event.
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