Alleman Hall McCoy Russell & Tuttle LLP
Methods and systems for assisted direct start control
Methods and systems are provided for pressurizing a hydraulic circuit comprising a hydraulically actuated transmission component and an accumulator. One example method comprises, during an engine idle-stop, adjusting actuation of the hydraulically actuated transmission component over a duration. The method further comprises, during the duration, isolating the accumulator from the hydraulically actuated transmission component when a pressure in the hydraulic circuit is above a threshold, and coupling the accumulator into the hydraulic circuit when the pressure is below the threshold.
Ford Global Technologies, LLC
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Marvin Paul Alex O'Connor Yuji Gregory Michael Seung-Hoon
Kraska Gibson Fujii Pietron Lee