Invention Application
US20100326542A1 CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION HAVING MULTIPLE DEFAULT MODES 有权
具有多种默认模式的自动变速器的控制系统

CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION HAVING MULTIPLE DEFAULT MODES
Abstract:
A hydraulic control system for a automatic transmission includes a plurality of solenoids and valves in fluid communication with a plurality of shift actuators. The shift actuators are operable to actuate a plurality of torque transmitting devices. Selective activation of combinations of the solenoids allows for a pressurized fluid to activate at least one of the shift actuators. The solenoids are configured to provide a forward gear ratio and a reverse gear ratio when the solenoids are deengerized.
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