Abstract:
The invention relates to a motor vehicle transmission, in particular a multi-step transmission, comprising at least one shifting unit (S3a, S6a; S3b) having two coupling elements (S31a, S32, S61a, S62a; S31 b, S32b) that can rotate relative to one another and be rotationally fixed to one another, as well as an actuator (17a; 17b), and comprising an open-loop and/or closed-loop control unit (18a) provided for controlling the at least one actuator (17a; 17b), wherein the motor vehicle transmission has an inductive connection unit (19a) which connects the open-loop and/or closed-loop control unit (18a) and the actuator (17a; 17b) to one another, and which is at least provided for supplying the actuator (17a; 17b) with electrical energy.
Abstract:
A shifting mechanism has a shift fork. The shift fork has upper and lower arms connected by an upright portion. The upright portion defines a pivot axis for the fork. The mechanism also has a clutch collar that is connected to the shift fork. The shift fork is connected to gearing and a motor to pivot the fork and thus the clutch collar into and out of engagement with a clutch.
Abstract:
A device for actuating a rotating shaft selected from a plurality of parallel rotating shafts, comprising a driving shaft supported and actuated by corresponding rotation means, which is provided with a driving gear for the transmission of torque, a plurality of driven shafts each one of which is provided with a corresponding driven gear that is designed to be meshed with the driving gear, the driven gears being arranged on the respective driven shaft in an axial position that is offset with respect to the other driven gears, the driving gear being capable of performing a translational movement axially with means of translational motion for alternate meshing with one of the driven gears, the device further comprising means of prevention of rotation for the driven shafts whose driven gear is not meshed with the driving gear.
Abstract:
An electronic, high-efficiency vehicular transmission, an overrunning, non-friction coupling and control assembly and switchable linear actuator device for use in the assembly and the transmission are provided. The device controls the operating mode of at least one non-friction coupling assembly. The device has a plurality of magnetic sources which produce corresponding magnetic fields to create a net translational force. The net translational force comprises a first translational force caused by energization of at least one electromagnetic source and a magnetic latching force based upon linear position of a permanent magnet source along an axis.
Abstract:
A dog clutch control apparatus for an automated transmission includes a rotary shaft (24), plural dog clutch mechanisms (30, 32, 34, 36, 38, 40, 44, 46), each of the dog clutch mechanisms including a clutch ring (30, 32, 44, 46), a clutch hub (34) arranged next to the clutch ring, a sleeve (36) fitted with the clutch hub, a dog clutch portion (30a, 32a) which is provided at the clutch ring and selectively meshes with a spline (36a) formed at the sleeve, an axial driving device (40) for moving the sleeve, the dog clutch control apparatus includes a disengagement detecting portion (38) for detecting disengagement before the sleeve reaches a neutral position and a control apparatus (10) for controlling operation of the axial driving device, wherein in a case where the disengagement is detected at a time of shifting operation, the control apparatus starts a shift-related control.
Abstract:
Weight reduction and space reduction can be performed by using a mechanical clutch having a simplified structure for driving plural output shafts by one motor. Output gears 21 are disposed so as to be movable toward and counter to plural second input gears 14 to which rotation of the motor 10 is transmitted, and so as to be biased toward the plural second input gears 14. A cam 41, which has plural recesses 42 provided at the periphery thereof, is disposed at the inside of the output gear. The cam 41 is rotated, and a pin 24 of the output gear 21 enters the recess, so that the output gear 21 is moved toward the second input gear 14, and the output gear 21 is engaged with the second input gear 14.
Abstract:
A transmission for use in a vehicle includes a main shaft connected to an engine and carrying a plurality of first gears fuxed thereto, and a countershaft connected to drive wheels and carrying as many second gears as the first gears, each through a roller clutch which is selectively engaged and disengaged by energizing and deenergizing an electromagnetic clutch. Each of the first gears meshes with one of the second gears to provide a predetermined gear ratio that is different from the gear ratios provided by the other pairs. When a shift lever is moved from first to second position, an electronic control unit disengages the roller clutch corresponding to the second gear corresponding to the first position, adjusts the engine speed to synchronize the pair of gears corresponding to the second position with the countershaft, and engages the roller clutch corresponding to the second gear corresponding to the second position. Gear change can thus be made without depressing the clutch pedal to disengage the torque transmission clutch connected to the clutch pedal.