Abstract: The present invention relates to a lock-up device for a torque converter which has a simple structure compared to the prior art, which reduces manufacturing costs, and which may reduce a size of the entire torque converter and improve a damping ability of the dynamic damper by minimizing an installation space of a dynamic damper.

Abstract: An actuation mechanism including one or more motors having an output shaft with a sun gear. A sun gear of a non-back drivable planetary gear assembly is drivingly connected to at least a portion of one or more planetary gears. The one or more planetary gears are drivingly connected to at least a portion of the sun gear, a carrier, a fixed non-rotating ring gear and a selectively rotatable output ring gear. The disclosure further relates to a method of operating an actuation mechanism that is drivingly connected to at least a portion of a vehicle parking mechanism. The method includes providing an actuation mechanism, providing a parking mechanism and one or more sensors that are operably configured to collect an amount of data to be analyzed. Based on the data analyzed, one or more failures within the parking mechanism may be determined and an alert may be sent.

Abstract: In a hydraulic control device switchable between a first state in which a first oil is supplied from a first pump to a hydraulic operation part via a bypass valve and a second state in which the first oil supplied from the first pump is pressurized by using the second pump and the pressurized first oil is supplied, as a second oil, to the hydraulic operation part, control that adds a correction hydraulic pressure of a predetermined amount to the hydraulic pressure of the oil discharged from a valve for adjusting the pressure of the oil supplied to the hydraulic operation part is performed when the second state is switched to the first state due to a stop or a low rotation state of the second pump.

Abstract: An actuation mechanism for use in a vehicle. The actuation mechanism includes one or more motors having an output shaft with a sun gear. At least a portion of the sun gear is drivingly connected to at least a portion of one or more planetary gears. The one or more planetary gears are drivingly connected to at least a portion of a carrier, a fixed non-rotating ring gear and an output gear. The disclosure further relates to a method of operating an actuation mechanism that is drivingly connected to at least a portion of a vehicle parking mechanism. The method includes providing an actuation mechanism, providing a parking mechanism and one or more sensors that are operably configured to collect an amount of data to be analyzed. Based on the data analyzed, one or more failures within the parking mechanism may be determined and an alert may be sent.

Abstract: A power transmission apparatus may include a first motor-generator including a first stator fixed to a first housing, and a first rotor; a second motor-generator including a second stator fixed to a second housing and a second rotor; a first planetary gear set including first and third rotation elements connected to the first rotor and a first wheel, respectively, and a third rotation element; a second planetary gear set including fourth, fifth and sixth rotation elements connected to the second rotor, a second wheel, and the third rotation element, respectively; a first clutch selectively locking up the first planetary gear set by selectively connecting two out of the first to third rotation elements; a second clutch selectively locking up the second planetary gear set by selectively connecting two of the fourth to sixth rotation elements; and a brake selectively fixing the third and sixth rotation elements to a third housing.

Abstract: A transmission device capable of cooperating with a dual-power source and a driving method therefor, the transmission device includes a planetary gear assembly that is driven by the dual-power source; the planetary gear assembly comprises a sun gear, a rotating inner gear ring, and a planetary gear that is engaged between the sun gear and the rotating inner gear ring; the dual-power source comprises an input shaft, the input shaft being connected to the sun gear. The direction of the rotational movement of the planetary gear about the input shaft depends on the linear velocity V1 of pitch circle movement of the rotating inner gear ring and the linear velocity V2 of pitch circle movement of the sun gear.

Abstract: A hydraulic system for a vehicle transmission with at least two friction elements, the system comprising a first hydraulic circuit comprising a pump for supplying hydraulic fluid to the first hydraulic circuit. A flow restriction may be provided in the first hydraulic circuit between an output of the pump and a sump for providing leakage of hydraulic fluid into the sump. Further, a second hydraulic circuit comprising a second pump may be arranged, wherein the hydraulic pressure in the first circuit is higher compared to the second circuit. A flow control element operated using hydraulic pressure from the first circuit may be arranged for controlling flow/pressure in the second circuit. Further, the hydraulic system may be arranged for generating a line pressure, wherein an actuator for engaging a park lock system may be connected to the first hydraulic circuit for enabling direct actuation by means of the line pressure.

Abstract: In a vehicle parking lock mechanism, a parking pawl mechanically hinders rotation of the parking gear by being engaged with the parking gear. A lock member is moved to the lock position to establish a parking lock state in which the parking pawl hinders rotation of the parking gear. The support member includes a guide portion configured to guide movement of the lock member between the lock position and the unlock position while restricting the lock member from displacing in a direction away from the parking pawl. The stopper is rotatably mounted to either one member of the lock member or the support member, changes a posture in accordance with relative movement between the lock member and the support member, and protrudes toward the other member side of the lock member such that the stopper establishes a protruding posture in the parking lock state.

Abstract: An oil feed structure includes: a hydraulic clutch; a power transmitting shaft coupled to the hydraulic clutch; a valve element inserted into the power transmitting shaft, and a spring configured to bias the valve element. The valve element includes: a pressure receiving surface facing in an axial direction of the power transmitting shaft and configured to receive hydraulic pressure of a hydraulic pressure oil passage; and a port communicable with a clutch lubrication hole of the power transmitting shaft. The spring biases the valve element toward the hydraulic pressure oil passage against the hydraulic pressure received by the pressure receiving surface. When clutch operating hydraulic pressure changes, the valve element moves in the axial direction to change an opening degree of communication between the port and the clutch lubrication hole.

Abstract: In one form there is disclosed an internally balanced involute-type speed reducer; the reducer comprising a stator stage, an input stage, an output stage, and a plurality of gear sets in mesh. In a further form there is disclosed an actuator assembly for a robot; said actuator assembly comprising a stator core located within an outer housing and subtended by inner and outer mounting hubs; said hub supporting a drive train and bearings within the actuator assembly. In a further form there is disclosed a transducer system operable in conjunction with the reducer or actuator assembly.

Abstract: A commercial vehicle with at least one driven axle, at least one service brake, at least one propulsion engine, and wheels characterized in that the parking brake function of the vehicle is solved by a bistable locking means acting on both wheels. At least one multi-speed gearbox is provided to concurrently activate a first gear stage and a second gear stage having different ratios.

Abstract: An electric powertrain includes a first electric motor that has an uninterrupted connection with a drive shaft of a vehicle. The electric powertrain further includes a first gear train that has an interruptible connection with the drive shaft. In one form, this interruptible connection includes a second carrier and a clutch engagement member. The electric powertrain further includes a sun gear in the form of a ring gear and planet gears in the form of a first output shaft. To provide a compact configuration, the first electric motor and the first gear train are sandwiched between the sun gear and the planet gears.

Abstract: A transmission for a vehicle. The transmission includes a housing and a valve block arranged in the housing, and a parking lock mechanism. The parking lock mechanism has a wheel rotationally locked to a shaft of the transmission, a pawl and a hydraulic actuator arranged for engagement of the wheel and the pawl for locking the shaft. The actuator is hydraulically connected to the valve block such that the actuator is supplied by hydraulic fluid from the valve block.

Abstract: An electric axle assembly includes an electric motor having an output shaft. A two stage gear train is coupled with the output shaft. The two stage gear train includes two reduction gears which provide different gear ratios. A differential is provided. A hollow differential input shaft is splined with the differential wherein the hollow input shaft supports driven gears that rotate independently relative to the hollow differential input shaft. A sliding dog clutch is splined to the hollow differential input shaft selectively engaging the driven gears or maintaining a neutral position wherein the electric motor and gear train are disconnected from the differential.

Abstract: A clutch unit for a drive unit, comprising: at least one outer ring and one inner ring, wherein the rings are mounted rotatably relative to each other, the outer ring being configured to be in operative engagement with a first component of a drive unit of a vehicle and the inner ring being configured to be in operative engagement with a second component of a drive unit of a vehicle; at least one first locking element; at least one first displacement element; the at least one first locking element being movably mounted on one of the rings and being movable by the displacement element in order to engage in a corresponding recess of the other ring a rotationally fixed connection of the two rings in at least a first direction of rotation being provided.

Abstract: A transfer case having, a transmission mount, an input shaft received through the transmission mount, an electric propulsion motor, a transfer case portion and a transmission portion. The transfer case portion has a transfer case portion input, a first transfer case portion output, a second transfer case portion output, and a power transfer mechanism, the first transfer case portion output being drivingly coupled to the transfer case input portion, the power transfer mechanism drivingly coupling the second transfer case portion output to the first transfer case output portion. the transmission portion has a first coupling, which is selectively operable for drivingly connecting the input shaft to the transfer case portion input, and a second coupling that is selectively operable for drivingly connecting a rotor of the electric propulsion motor to the transfer case portion input.

Abstract: The controller forms a control device for a vehicle with which torque generated in an engine and a motor generator is transmissible to a continuously variable transmission in accordance with a driving force request from a driver. The controller includes an engine controller forming a motor control unit adapted to control an output of the motor generator in accordance with the driving force request, and a transmission controller forming a transmission capacity control unit adapted to control a transmitted torque capacity of the continuously variable transmission, and, in a case where motor assistance is performed and when stability of the transmitted torque capacity of the continuously variable transmission is detected, performs the motor assistance.

Abstract: Methods and systems for an electric drive axle of a vehicle are provided. An electric drive axle system includes, in one example a gear train configured to rotationally attach to an electric motor-generator, the gear train includes an output shaft having a clutch arranged thereon and configured to selectively rotationally couple a gear to the output shaft. The gear train further includes a lubrication channel extending between an output shaft and an axle shaft and including an outlet extending through the output shaft and opening into the clutch.

Abstract: A powertrain for a hybrid vehicle includes: a complex planetary gear set including a first rotary element, a second rotary element, a third rotary element, and a fourth rotary element; an input shaft connected with an engine and installed to be able to be selectively connected to each of the first rotary element and the second rotary element of the complex planetary gear set; a motor generator connected to the first rotary element of the complex planetary gear set; a first brake installed to be able to fixedly connect the second rotary element of the complex planetary gear set to a transmission case; a second brake installed to be able to fixedly connect the third rotary element of the complex planetary gear set to the transmission case; and an output shaft connected to the fourth rotary element of the complex planetary gear set.

Abstract: A clutch device includes a main clutch, a pilot clutch, and an inner cage. The main clutch has a friction pack, a pressure device for pressing the friction pack, and a ramp system for moving the pressure device. The pilot clutch is for transmitting torque to the ramp system and can be opened and closed by moving the counter-plate. The pressure device can be moved by the counter-plate. The friction pack is mechanically connected to the inner cage and an outer cage. The ramp system includes a first ramp element arranged on the inner cage, a freewheel, and a second ramp element. The freewheel blocks rotary movement of the first ramp element in a first rotational direction and allows rotary movement in an opposite rotational direction. The first and second ramp elements, and the pilot clutch, are mechanically connected to the inner cage when the pilot clutch is closed.