摘要:
A clutch includes a pilot valve, a regulating valve, and a clutch control valve. The pilot valve is configured to produce a pilot signal and includes a first valve, which is a MEMS microvalve. The regulating valve is in fluid communication with the pilot valve, and is configured to receive the pilot signal. The regulating valve is further configured to output a control signal. The clutch control valve is configured to engage and disengage the clutch in response to the control signal. The clutch may be configured as one of a wet clutch and a dry clutch.
摘要:
A powertrain system in a mild hybrid vehicle includes a hydraulic device, a pilot valve, and a regulator valve. The pilot valve is operably connected to the hydraulic device and configured to actuate. The pilot valve includes at least one micro-electro-mechanical systems (MEMS) based device. The regulator valve is operably connected to the pilot valve and the hydraulic device. The regulator valve is configured to direct fluid to the hydraulic device based on the actuation of the pilot valve.
摘要:
A pressure control system configured to control a selectable one-way clutch (SOWC) includes a pilot valve and a SOWC actuator. The pilot valve is configured to produce a pilot signal and includes a first valve, which is a MEMS microvalve. The pressure control system may further include a regulating valve in fluid communication with the pilot valve and configured to receive the pilot signal. The regulating valve is further configured to output a control signal. The SOWC actuator is configured to select between operating modes of the selectable one-way clutch in response to one of the pilot signal and the control signal.
摘要:
A pressure and flow control system for a torque converter clutch includes a pilot valve, a regulating valve, and a torque converter control valve. The pilot valve is configured to produce a pilot signal and includes a first valve, which is a MEMS microvalve. The regulating valve is in fluid communication with the pilot valve, and is configured to receive the pilot signal. The regulating valve is further configured to output a control signal. The torque converter control valve is configured to engage and disengage the torque converter clutch in response to the control signal.
摘要:
An automated manual transmission includes a hydraulic device, a pilot valve, and a regulating valve. The pilot valve is operably connected to the hydraulic device and configured to actuate. The pilot valve includes at least one micro-electro-mechanical systems (MEMS) based device. The regulating valve is operably connected to the pilot valve and the hydraulic device. The regulating valve is configured to direct fluid to the hydraulic device based on the actuation of the pilot valve.
摘要:
A pressure and flow control system includes a hydraulically-controlled component, a pilot valve, and a regulating valve. The pilot valve is configured to produce a pilot signal and includes a first valve, which is a MEMS microvalve. The regulating valve is in fluid communication with the pilot valve, and is configured to receive the pilot signal. The regulating valve is further configured to output a control signal, which controls the hydraulically-controlled component.
摘要:
A powertrain system in a hybrid vehicle includes a hydraulic device, a pilot valve, and a regulator valve. The pilot valve is operably connected to the hydraulic device and configured to actuate. The pilot valve includes at least one micro-electro-mechanical systems (MEMS) based device. The regulator valve is operably connected to the pilot valve and the hydraulic device. The regulator valve is configured to direct fluid to the hydraulic device based on the actuation of the pilot valve.
摘要:
A wet dual clutch transmission includes at least one hydraulic component and a pilot valve operably connected to the hydraulic component to actuate the hydraulic component. The pilot valve includes a Micro-Electro-Mechanical Systems (MEMS) based pressure differential actuator valve. The hydraulic component may include but is not limited to a first clutch and a second clutch of the wet dual clutch transmission, a lube regulator valve, an on/off solenoid, a synchronizing shift fork or a line pressure control valve.
摘要:
A selectable one-way clutch assembly (SOWC) includes a first race, a second race, a plurality of rockers, and a selector ring. The first race and the second race each surround the first axis. Each of the rockers selectively hold torque in a rotational direction to establish a clutch operating mode. The selector ring defines a plurality of windows and is configured to rotates about the first axis to align at least one of the windows to establish one of the plurality of different clutch operating modes. The SOWC is engaged by rotating the selector ring about the first axis to align at least one of windows in a predetermined manner. Alignment allows at least one of the rockers to engage the second race in a radial direction to hold torque in at least one rotational direction.
摘要:
A SOWC for use with a vehicle transmission is provided. The clutch includes outer and inner elements, also referred to as races, with the latter oriented concentrically within the former about an axis of rotation. A selection mechanism, which may be annular plates operatively connected with the side of the races and with one another, is selectively rotatable with respect to the inner and outer elements between different positions. Pivotable rocker elements are positioned between the races and are movable along cammed slots of the annular plates when the annular plates are rotated to establish a forward, a reverse, and a neutral operating mode corresponding with the different positions of the annular plates. In some embodiments, in the neutral operating mode, none of the rocker elements are in contact with the inner race.