Patent ID: 8764596
Filing Date: 2014-07-01
Classification: F16H

Abstract:
1. A transmission system of a vehicle, comprising: a transmission housing that includes an aperture formed through the transmission housing; a valve body that is disposed within the transmission housing; a pump that is powered by rotation of an input shaft, that is disposed within the transmission housing, that pressurizes transmission oil when an engine is operating, and that outputs the pressurized transmission oil to the valve body; a first manifold body that is disposed within the transmission housing, wherein the pump draws transmission oil from a sump via the first manifold body; an auxiliary pump that is coupled to the transmission housing, that pressurizes the transmission oil when the engine is not operating, and that outputs the pressurized transmission oil to the valve body, a plurality of pressure control devices (PCDs) that select a gear ratio using the pressurized transmission oil; and a second manifold body that is disposed within the transmission housing and that is coupled to the auxiliary pump through the aperture of the transmission housing, and wherein the auxiliary pump draws transmission oil from the sump via the second manifold body.