摘要:
A hydraulic circuit for a power transmission device has an oil passage supplying hydraulic pressure of hydraulic fluid to the power transmission device mounted on a vehicle and a hydraulic actuator on which the hydraulic pressure of the hydraulic fluid in the oil passage acts, the oil passage is provided with a concave portion of the inner surface of the oil passage that is recessed upward in the state of mounting on the vehicle. The concave portion is located upstream of the hydraulic actuating portion in the oil passage and above the hydraulic actuating portion when the unit is mounted in the vehicle.
摘要:
A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. An integrated actuator housing includes a single external power access for the shift actuator. A controller interprets controls the shift actuator with actuating and opposing pulses, and interprets a shaft displacement angle, determines if the transmission is in an imminent zero or zero torque region, and performs a transmission operation in response to the transmission in the imminent zero or zero torque region.
摘要:
A transmission includes an input shaft and an output shaft, the input shaft selectively accepting a torque input from a prime mover, and the output shaft selectively providing torque output to a driveline. A controller determines a shaft displacement angle representing an angle value of rotational displacement difference between at least two shafts of the transmission, and performs a transmission operation responsive to the shaft displacement angle.
摘要:
A clutch mechanism designed to be installed between an engine and a motor vehicle transmission, wherein the clutch mechanism includes at least one cooling duct arranged to make a cooling fluid circulate toward the clutch, wherein each cooling duct includes an axially extending part and at least one radially extending part, the axially extending part of each cooling duct is situated radially between a transmission shaft and an interior face of the clutch support, and at least one radially extending part of each cooling duct is situated axially between the support bearing and the output hub.
摘要:
A multiple natural frequency coupling apparatus for connecting a rotatable driving member to a rotatable driven member of a drive line. The coupling apparatus of the present invention provides a substantially cylindrical housing having a longitudinal axis with a substantially cylindrical outer shaft coaxially aligned with and connected to the housing. A substantially cylindrical inner shaft is coaxially aligned with the outer shaft and the housing. A substantially cylindrical chuck housing is coaxially aligned with the housing, the outer shaft, and the inner shaft wherein the fluid chuck housing is connected to the inner shaft. A substantially cylindrical collapsible sleeve is coaxially aligned with and between the fluid chuck housing and the outer shaft, wherein the collapsible sleeve may move between a non-actuated position, wherein the collapsible sleeve does not engage the outer shaft thereby providing the coupling apparatus with a first torsional stiffness corresponding to a first natural frequency, and an actuated position, wherein the collapsible sleeve engages the outer shaft thereby providing the coupling apparatus with a second torsional stiffness corresponding to a second natural frequency.
摘要:
An actuating device is provided for actuating at least one shifting element shiftable through a shifting device, whereas the shifting device features a pressure space with a supply for a pressurized medium, along with a shut-off valve. It is proposed that the shut-off valve is connected in an electrically controllable and torque-proof manner to at least one shifting element, and that the electrical energy for the actuation of the shut-off valve is able to be supplied without contact.
摘要:
Provided are devices and methods to minimize drag caused by abrasion powder between clutch plates and to prevent a faulty engagement or release of a dry clutch. A hybrid driving force transmission device is provided, wherein a multi-plate dry clutch is arranged in a sealed space and used for connecting/disconnecting transmission of a driving force is provided with drive plates, driven plates, friction facings, and a housing cover. The drive plates are splined to a clutch hub, and have, in the sections thereof that are splined to the clutch hub, vent holes for channeling the air flowing in the axial direction. The driven plates are splined to a clutch drum. The housing cover has an external air intake hole for drawing external air into the sealed space, and an external air discharge hole for discharging the airflow from the sealed space to the outside.
摘要:
A method and a device for controlling an automatic or automated clutch (4) of a vehicle, by a pressure fluid drive actuator (6) whereby the waypoint of a part (piston rod 12), connected with the drive actuator (6), is captured via a displacement sensor (28) and entered, as a control parameter, into a clutch control interacting with the vehicle control system (26). Provision is made for a diversified redundancy by use of a pressure sensor (30) measuring the fluid pressure in the drive actuator (6). The pressure sensor (30) monitors and stores the pressure in the drive actuator (6) and pressure changes, when engaging or disengaging the clutch, as a curve in the vehicle control system (26). Hereby, the level of engagement of the clutch is represented by the waypoint of drive actuator (6) by the pressure in the drive actuator (6) so that, if there is a malfunction in the displacement sensor (28), an emergency drive function is maintained.
摘要:
A clutch assembly having a drive shaft operably connected to a first hub or clutch plate. A second hub or clutch plate adjacent to the first clutch plate and operably connected to a second drive shaft. A release ring positioned to selectively release both clutch plates. Positioned to engage the release ring is a pneumatic actuating member that is operably connected to a source of compressed air.
摘要:
A torsional spring system is provided and is made from a single wire having a first end and a second end, and being wound to define a plurality of coil sections each separated from one another by a plurality of torsion arms. The first and second ends of the wire are joined to one another such that the plurality of coil sections and the plurality of torsion arms combine to form a loop. The torsion spring of the present invention can be utilized as a return spring in a clutch system for reducing the cost of the overall assembly. In addition, the torsion spring of the present invention also provides added functionality by being capable of simultaneously counteracting any combination of axial, radial, and rotational forces.