摘要:
In a locking mechanism provided with: a sleeve which is fixed in the circumferential direction and which can be stroked in the shaft line direction; a hub which can rotate in the circumferential direction orthogonal to the shaft line direction; and an actuator which can apply a driving force for displacing the sleeve in the shaft line direction, dog teeth are formed on the inner circumferential surface of the sleeve, and dog teeth are formed in the hub. Here, the engagement surfaces of the dog teeth are inclined at a predetermined angle with respect to the shaft line such that the hub performs relative rotation with respect to the sleeve in a process in which the sleeve is stroked in the shaft line direction. The ECU estimates the stroke volume of the sleeve on the basis of the rotation amount of the hub and the predetermined angle.
摘要:
A method and apparatus for setting the torque transmitted by a friction clutch via an actuator chain having an electric motor, a reduction gear and a mechanism for converting the rotary movement of the electric motor. In the method, a desired angle of rotation of the electric motor or a link of the actuator chain is determined from the torque to be transmitted by the friction clutch and is set in a setting procedure based on a given torque/angle dependence. To compensate for wear inside the friction clutch, a calibration process takes place in which a first correction angle is determined for the torque/angle dependence. Variations in a torque/power consumption dependence caused by wear within the actuator chain are also taken into account. Specifically, the number of setting procedures of the electric motor within a predetermined time interval is determined and is used to correct the torque/power consumption dependence.
摘要:
A method of detecting axial wear and a counterforce gradient of a multiple disc switching element (1) with position-controlled actuation with an electric motor (2), a spur gear stage (3) and a ball ramp (4) by one of a hydraulic pressure actuator and an electromagnetic actuator. The method comprises the step of determining, when a vehicle is at a standstill, the axial wear (J) and the counterforce gradient or the rigidity of the system by an overrun adaptation.
摘要:
The differential limiting control apparatus having a clutch unit interposed between one rotational shaft and the other rotational shaft for variably transmitting a driving force between the one rotational shaft and the other rotational shaft, having: a feedback control unit for computing the clutch torque on basis of vehicle behaviors through a feedback control, a feed forward control unit for computing the clutch torque based on the behaviors through feed forward control, a tire diameter difference computing unit for computing a diameter difference of a tire, and a clutch torque computing unit for computing a final clutch torque by changing a ratio of the clutch torque obtained through the feedback control and a clutch torque obtained through the feed forward control so as to appropriately decide the feed forward control by effectively suppressing the tire slip while avoiding the occurrence of the internal circulation of the torque.
摘要:
Actuation devices are disclosed for a pressure-closed clutch where the position of an actuation member is acquired by an incremental sensor. In an embodiment of the actuation device, the signal of the incremental sensor is acquired in case of a sudden change in the power consumption of an actuator and is used as a new reference signal. In another embodiment, the actuation member, while the spindle is rotating, is moved by a recovery spring during the closing of the clutch against a stop and the signal of the incremental sensor upon the attainment of said stop is used as a reference signal.
摘要:
A clutch actuator comprises a clutch motor comprising motor shaft. The clutch actuator also comprises a worm shaft that is spline connected to the motor shaft. The rotary motion of the worm shaft 103 is transferred to a worm wheel 105, which is engaged with the worm shaft 103. The worm shaft 103 has a threaded portion 103c. The threaded portion 103c comprises multiple threads.
摘要:
An actuator for a clutch or gear mechanism in a motor vehicle comprises an electric motor and an incremental encoder. The encoder comprises a position measurement signal output at which a position measurement signal can be output which has a number of different signal states, each of which is assigned to a relative position between a primary part and a secondary part of the electric motor. For the commutation of the electric motor, the position measurement signal output is connected to a position measurement signal input of a control device for a motor winding of the electric motor. The control device comprises a device for checking the plausibility of the position measurement signal and is designed in such a manner that on the occurrence of an implausible signal state the power supply to the electric motor is disconnected and/or the power of the electric motor is limited.
摘要:
A hydraulic actuation system, especially for actuating the clutch of a vehicle, containing a master cylinder unit, a slave cylinder unit, a hydraulic medium line connecting the two cylinder units and a throttle valve which is used to alter the flow resistance between the cylinders of the master cylinder unit and the slave cylinder unit.
摘要:
Actuation devices are disclosed for a pressure-closed clutch where the position of an actuation member is acquired by an incremental sensor. In an embodiment of the actuation device, the signal of the incremental sensor is acquired in case of a sudden change in the power consumption of an actuator and is used as a new reference signal. In another embodiment, the actuation member, while the spindle is rotating, is moved by a recovery spring during the closing of the clutch against a stop and the signal of the incremental sensor upon the attainment of said stop is used as a reference signal.
摘要:
In either a pull-mode operating state or a push-mode operating state, a clutch arrangement assigned to the first gearbox input shaft and a clutch arrangement assigned to the second gearbox input shaft are actuated in such a way and a torque-generating arrangement comprising a drive unit is controlled in such a way that, when a shift is to be made between a first gear assigned to a first gearbox input shaft and a second gear assigned to a second gearbox input shaft, at least one of the following criteria with respect to the shifting sequence comprising the shift in question is fulfilled:(1) during the shifting sequence, the torque present at the gearbox output shaft is at least approximately constant or changes monotonically;(2) during the shifting sequence, the vehicle accelerates in an essentially monotonically increasing or in an essentially monotonically decreasing manner.