Abstract: An actuator for a state changeover element that is actuated in a manner interlocking with the tilting of a tilt member is provided. The actuator is equipped with a rotational power generating portion, an output shaft coaxially and integrally rotatably coupled to a tilt spindle of the tilt member to output a rotational power generated by the rotational power generating portion, a casing that covers the actuator and having an opening for exposing one axial end side of the output shaft to an outside. The actuator is further equipped with a rotational angle limiting unit provided between the output shaft and a wall portion of the casing radially facing the output shaft to physically limit a rotational angle of the output shaft. A range changeover device for an automatic transmission equipped with this actuator and a parking device equipped with this actuator are provided.

Abstract: A parking lock device for a motor vehicle transmission which comprises a transmission housing, a locking pawl mounted by a bolt to swivel on the housing and loaded by a restoring spring, a guide plate supported on the housing, and a locking element by which, in the engaged condition, the locking pawl can be locked by being supported against the guide plate. The locking pawl is arranged on the bolt with some play and, on a narrow side thereof facing toward the guide plate, has a pawl hook with a first detent element, while the guide plate has, in a swiveling area of the pawl hook, an opening with a second detent element which interlocks with the first detent element when the parking lock is disengaged.

Abstract: A parking lock device for a motor vehicle transmission including a parking lock gear, a locking pawl, a locking element with an operating rod as well as a guide plate. The locking pawl engages with and blocks the parking lock gear when the parking lock is engaged and locked by the locking element, and when the parking lock is disengaged, the locking pawl disengages from the parking lock gear and can be locked in a form-locked manner. An unlocking element is fixed to the operating rod, and the unlocking element disengages the form lock before the parking lock is engaged. The locking element is arranged on a leaf spring which has a fixed end, a free end and a center arranged between the fixed and the free ends. The center can be moved outwardly by the unlocking element and the locking element is arranged on the free end.

Abstract: A parking lock device for a motor vehicle which comprises a parking lock gearwheel, a locking pawl, a locking element with an actuating rod and a compensation spring element. In the active zone of the locking element, the locking pawl has an inclined face. The inclined face (1a) has a variable slope angle (?).

Abstract: The present invention provides a method for manufacturing a steel plate-shaped component which can increase the yield and the working efficiency. When a steel plate-shaped component (1) such as a pole parking is manufactured, a steel disk-shaped initial material (10) is vertically placed in a cavity (41) of a dice (40) of a cold forging die so that the thickness direction of the initial material (10) is perpendicular to a pressing direction. The initial material (10) is pressed through cold forging against the peripheral side portion (11) by a punch (42) while the initial thickness of the initial material (10) is maintained substantially as it is, whereby an approximate component (20) approximating the plate-shaped component (1) is obtained. Subsequently, a margin portion (25) of the approximate component (20) is removed, whereby a half-finished product (30) is obtained.

Abstract: A parking lock gear (1) for a parking lock arrangement for locking an output shaft of a transmission of a vehicle has teeth (5). An annular element (2) is fixed to the parking lock gear (1) and has outer teeth (3) which engage an actuated locking pawl.

Abstract: A park-by-wire subsystem which is internally mounted within an electrically variable hybrid transmission is provided. The park-by-wire subsystem provides a means of selectively placing the electrically variable hybrid transmission in a park condition by the selective actuation of an actuator operatively connected to a lever. The lever enables selective engagement of a park pawl mechanism and incorporates multiple Hall effect switches to monitor the position of the lever. The subsystem is monitored by various switches and sensors to provide control and diagnostic feedback and is activated by a command source controlled by a first control unit. A second control unit is incorporated into the design for required control, monitoring, and diagnostic redundancies.

Abstract: A parking lock is provided for a vehicle transmission. A parking lock gear rim can be connected with a transmission housing in a rotationally fixed manner through at least one locking pawl, and the parking lock gear rim is designed as crown wheel gear rim and arranged on a ring gear of a differential of the vehicle transmission perpendicularly to the plane of the ring gear.

Abstract: An automatic transmission has a park system with a shaft and a parking pawl. The shaft rotates in response to a gear shift lever, and a detent lever positions the parking pawl in response to rotation of the shaft. A detent spring assembly biases the detent lever and has a detent spring, cage, and roller assembly. The cage aligns the roller assembly, while the detent spring is connected to the cage at one end and has a flat reaction surface formed at a second end. A cage notch portion aligns the cage with the detent lever, and the roller assembly into a perpendicular orientation with detent lever teeth. The notch portion engages either a detent tooth or a stationary portion of an internal mode switch (IMS). A shaft inserts into a roller through a side hole in the cage to retain the roller assembly therewithin.

Abstract: A drive force transmitting apparatus for a vehicle including a drive source, a drive force transmitting path adapted to be connected to a drive shaft to transmit a drive force from the drive source to the drive shaft, and a clutch mechanism capable of connecting and disconnecting the drive force transmitting path. The drive force transmitting apparatus further includes a parking mechanism provided in the drive force transmitting path and capable of stopping the rotation of the drive shaft and an actuator mechanism capable of selectively operating the clutch mechanism and the parking mechanism.

Abstract: A transmission is provided with a park pawl moveable around an axis and positioned over a park gear. An actuator assembly is provided for pushing the park pawl against the effect of a return spring in a blocked position thus blocking the park gear. In order to provide a transmission in which the risk of an erroneous engagement of the park pawl due to a broken spring is avoided, means, such as a mechanical coupling, are provided for mechanically coupling the park pawl to the actuator when the park pawl is in unblocked position. Due to this mechanical coupling, the park pawl is retained in the unblocked position and prevented from falling into the park gear even if the return spring breaks.

Abstract: A parking lock for a motor vehicle with an automatic or manual automatic transmission includes a parking lock wheel connected with the transmission output, a locking pawl pivotably attached by a parking lock bolt to a transmission housing. The locking pawl engages and disengages the parking lock wheel and has an end communicating with a guiding plate. A locking element is placed between the pawl and plate to prevent the pawl from disengaging the parking lock wheel. A hydraulic damping element, is at least operatively connected with the pawl, such that while disengaging the parking lock, movement of the pivotable end of the locking pawl toward the guiding plate is damped upon release of the parking lock thus preventing any undesired release jolt.

Abstract: A transmission for an internal combustion apparatus is provided in which a parking lock mechanism is commonly formed with an upstream side portion of a power transmission system of a shift change mechanism, whereby the number of parts is reduced and the parking lock mechanism is compactly incorporated therein to achieve miniaturization of the internal combustion engine. The transmission in which a shift change mechanism performs a shift change in response to an operation of a gear selecting apparatus is configured to include a parking lock mechanism which is driven in an interlocking relationship with a working portion of the shift change mechanism, and if the shift change mechanism is set to the parking position, then a rotary shaft of the transmission is locked against rotation by the parking lock mechanism thereby restricting rotation of the rotary shaft.

Abstract: When it is predicted that a request for a parking lock operation is likely to be received, an actuator of a parking mechanism is controlled to perform standby processing for bringing the parking mechanism into a standby state immediately preceding a lock state to wait for the request for the parking lock operation.

Abstract: A parking lock mechanism of an automatic transmission includes a casing, a parking gear provided in the casing, a parking pawl engaged with the parking gear to achieve a parking lock state, and a “parking pawl holding portion” suppressing inclination of the parking pawl in an out-of-plane direction (a direction shown with an arrow DR40). A groove portion is formed in the casing. A protruding portion is provided in a sleeve fixed to the casing. A side surface of the groove portion implements a “first portion” of the “parking pawl holding portion.” A base and protruding portion are formed from a member separate from the casing, and implement a “second portion” of the “parking pawl holding portion.

Abstract: A fulcrum cam (24) for moving the fulcrum of a parking lock pole 22 is configured to move the fulcrum of a parking lock pole (22) such that the widthwise center of a protrusion (22a) of the parking lock pole (22) is moved along a radial line L extending from the axis of rotation P of the parking gear (21) through the circumferential center of a corresponding notch (21b) from point X1 through point X2 to point X3.

Abstract: A device is provided for actuation of a parking lock of a vehicle transmission that is automatically operated in particular, whereby the parking lock can be brought into a locked position by means of a spring mechanism and can be brought out of the locked position and into an unlocked position by means of an actuator, and an electrically operated actuator is provided, acting upon a locking latch arranged in the unlocked position of the parking lock with a locking slide in an engaged position so that the engaged position can be released such that the spring mechanism brings the parking lock into the locked position.

Abstract: A vehicular transmission, includes: an input shaft; a drive gear, fixed to the input shaft; an output shaft; a driven gear, brought in mesh with the drive gear, and provided at the output shaft; a hub configured to rotate along with the output shaft; a sleeve configured to rotate integrally with the hub, and configured to slide in an axial direction so as to connect the driven gear to the output shaft to drive; a parking gear, integrally formed with the sleeve; a claw member, provided at a vicinity of an outer periphery of the parking gear engageably with and disengageably from the parking gear; and a sleeve restricting member, provided with the claw member, and configured to restrict the sleeve from a movement in the axial direction when the claw member is moved in a direction of being engaged with the parking gear.

Abstract: A parking brake device for motor transmissions, especially automatic transmissions has a parking brake pawl (2) with an actuating or adjusting device (3) for engaging and disengaging the pawl (2) as well as a holding device for securing the parking brake pawl (3) in the disengaged position. The holding device includes a toggle mechanism (6, 7, 8, 9) that can be brought from a first, stretched position, in which the parking brake pawl (2) is fixed in the disengaged position, into a second, bent position, in which the parking brake pawl (2) can be engaged. This presents a reduction of the design effort, an improvement of robustness and resistance to different ambient conditions with no auxiliary energy requirement for maintaining the securing action for the parking brake pawl and also minimal releasing forces for releasing the parking brake securing.

Abstract: A transmission parking lock with a ramp (10) for pressing against an actuating element. The ramp (10) defines an actuation direction (11) in which the actuating element can be moved and the ramp (10) has a ramp gradient in the actuation direction (11). The ramp gradient varies transversely with respect to the actuation direction (11) such that the load between a pawl (1) and of the actuating element can be reduced.

Abstract: A parking lock device for an automatic transmission includes: a parking gear externally fixed to the output shaft; a parking lock pole displaced between a lock position, where the parking lock pole latches onto the parking gear to disable rotation of the parking gear, and an unlock position, where the parking lock disengages from the parking gear to enable rotation of the parking gear; a parking rod for displacing the parking lock pole toward and away from the parking gear; a drive lever that moves the parking rod; and a booster mechanism interposed between the parking rod and the drive lever that increases the driving force of the drive lever. Thus, the parking lock device makes the driving force applied by the drive lever when unlocking as small as possible and prevents inadvertent unlocking when in a locked state, thereby achieving smooth operation and enhanced reliability.

Abstract: A vehicular transmission, includes: an input shaft; a drive gear, fixed to the input shaft; an output shaft; a driven gear, brought in mesh with the drive gear, and provided at the output shaft; a hub configured to rotate along with the output shaft; a sleeve configured to rotate integrally with the hub, and configured to slide in an axial direction so as to connect the driven gear to the output shaft to drive; a parking gear, integrally formed with the sleeve; a claw member, provided at a vicinity of an outer periphery of the parking gear engageably with and disengageably from the parking gear; and a sleeve restricting member, provided with the claw member, and configured to restrict the sleeve from a movement in the axial direction when the claw member is moved in a direction of being engaged with the parking gear.

Abstract: Parking brake actuator is an overrunning single directional clutch which provides for infinite locking positions.

Abstract: A torque based park lock assembly for motor vehicles, especially passenger cars and trucks equipped with automatic transmissions, includes a lobed wheel secured to a transmission output shaft and a rotation restricting flexible lever which may be selectively moved into engagement with the lobed wheel by a cam. A bidirectional motor rotates the cam. A return spring translates the lever away from the lobed wheel when the cam is rotated into a disengaged (non-Park) position.

Abstract: A parking mechanism of a transmission includes a parking sprocket plug having a pawl portion to be engaged with a parking gear, a parking rod which has a bulge portion and causes the parking sprocket plug to operate, and a bracket which has a rod support member supporting the parking rod. The parking sprocket plug also has a support piece. When the bulge portion is disengaged from a projection, the support piece is hooked on the bulge portion, and the parking sprocket plug is supported in a position where the pawl portion is disengaged from the parking gear. Thereby, a parking mechanism which incurs no malfunction and requires small force for operation is provided.

Abstract: A parking lock device mounted on a transmission without modifying the constitution of the base transmission as much as possible and is constituted in a compact size. A first coupling member 11 is spline-fitted and fixed to a rear end portion of an output shaft 1 of the transmission by using a fixing nut 5, and a second coupling member 12 is integrally coupled to the first coupling member 11. A continuously indented portion 11C is formed along the outer circumference of the first coupling member 11. In a park locked state, a pawl portion 31A of a parking pawl 31 arranged on the lower side is brought in mesh with the intended portion 11C. The parking lock device is mounted on the rear end portion of the output shaft 1, and does not require the basic portion of the transmission to be modified. The second coupling member 12 has an extended shaft portion 12C formed in the same shape as the rear end portion of the output shaft 1.

Abstract: This invention relates to the housing of a hybrid electro-mechanical transmission consisting of park pawl system located in the end cover portion of the transmission housing. The end cover portion is configured to cover the park pawl system and allow access to the components of the park pawl system for assembly or service even as the end cover portion remains attached to the main housing of the transmission. Beyond providing coverage to the park pawl system, the end cover portion also provides structural support to a main housing portion during operation of the transmission. A method of assembling a park pawl system between main and end cover portions of a transmission housing is also provided.

Abstract: An electronic transmission range selection (ETRS) system for shifting a transmission range of a transmission includes an electro-mechanical park inhibit assembly that operates to disallow the ETRS system from shifting from an Out-of-Park mode to a Park mode under certain circumstances. The park inhibit assembly includes a follower having a recess defined thereon and slidably disposed within a follower bore. In one embodiment a selectively energizable solenoid assembly is mounted substantially perpendicular to the follower and operates to bias a ball into the recess when energized thereby locking the ETRS system in the Out-of-Park mode. In another embodiment the park inhibit assembly includes a selectively energizable motor assembly mounted substantially perpendicular to the follower. The motor assembly operates to enforce the Park and Out-of-Park mode of the ETRS system.

Abstract: A parking brake apparatus for an automatic transmission vehicle in one embodiment includes a parking shaft connected to a shift lever, a cam plate secured to the parking shaft, a parking rod assembly operated when the cam plate secured to the parking shaft rotates through manipulation of the shift lever, and a parking gear meshed with a sprag which is actuated by the parking rod assembly. The apparatus comprises a driving section having a driving motor assembly for driving the parking shaft such that the sprag can be engaged with or disengaged from the parking gear when the shift lever is manipulated between P and R, and operating to ensure that a rotational force of a driving motor is added to a disengaging force of the parking rod assembly for disengaging the sprag engaged with the parking gear when the disengaging force is insufficient.

Abstract: When it is predicted that a request for a parking lock operation is likely to be received, an actuator of a parking mechanism is controlled to perform standby processing for bringing the parking mechanism into a standby state immediately preceding a lock state to wait for the request for the parking lock operation.

Abstract: A device for locking a vehicle transmission including a toothed wheel connected to the vehicle drive wheels via a transmission element, and a locking pivoting finger capable of being engaged between two consecutive teeth of the toothed parking wheel to immobilize the drive wheels via the toothed parking wheel. The toothed parking wheel is integrated in the differential ring gear.

Abstract: A parking mechanism of a transmission includes a parking sprocket plug having a pawl portion to be engaged with a parking gear, a parking rod which has a bulge portion and causes the parking sprocket plug to operate, and a bracket which has a rod support member supporting the parking rod. The parking sprocket plug also has a support piece. When the bulge portion is disengaged from a projection, the support piece is hooked on the bulge portion, and the parking sprocket plug is supported in a position where the pawl portion is disengaged from the parking gear. Thereby, a parking mechanism which incurs no malfunction and requires small force for operation is provided.

Abstract: A park brake includes a brake lever that is movable about a primary and secondary pivot. The brake lever selectively rotates about the primary and secondary pivots changing a ratio of rotation of the brake lever relative to a cable.

Abstract: A parking lock device for an automatic transmission includes: a parking gear externally fixed to the output shaft; a parking lock pole displaced between a lock position, where the parking lock pole latches onto the parking gear to disable rotation of the parking gear, and an unlock position, where the parking lock disengages from the parking gear to enable rotation of the parking gear; a parking rod for displacing the parking lock pole toward and away from the parking gear; a drive lever that moves the parking rod; and a booster mechanism interposed between the parking rod and the drive lever that increases the driving force of the drive lever. Thus, the parking lock device makes the driving force applied by the drive lever when unlocking as small as possible and prevents inadvertent unlocking when in a locked state, thereby achieving smooth operation and enhanced reliability.

Abstract: This invention relates to grounding the mechanical loads of an electrically variable transmission with a park pawl system located in the end cover portion of the transmission housing. The end cover portion is configured to cover the park pawl system and engagement gear. A support hub is interfittable with the end cover portion of the transmission and sufficiently secured thereto so as to ground the park pawl loads. The hub also functions to guide oil to the cavity of a piston-clutch assembly. A method of securing a hub to an electrically variable transmission housing is also provided.

Abstract: A belt-type continuously-variable transmission includes a casing enclosing a primary pulley, a secondary pulley, a belt connecting the pulleys and a parking gear; and a side cover subassembly including a side cover joined to the casing. The side cover assembly further includes a parking pawl arranged to engage with the parking gear, a support member arranged to support the parking pawl; and a return spring.

Abstract: A parking brake assembly which includes a brake lever, a rotary clutch and a lock-release mechanism which cooperate to selectively lock and release a parking brake. The clutch allows actuation of the brake lever in one direction and prevents movement of the brake lever in an opposite direction. The lock-release mechanism allows selective movement of the rotary clutch and the brake lever together in the opposite direction. A gear mechanism is operatively coupled between the brake lever and the rotary clutch.

Abstract: According to a preferred embodiment of the present invention, a clutch is applied when the vehicle comes to a stop. The application of this clutch locks the output shaft with energy stored therein. When the shift selector is then moved to the park position, the clutch releases the stored energy in a controlled manner by slipping the clutch plates. The controlled slipping reduces the noise as the park pawl tooth contracts an output gear tooth.

Abstract: A drive force transmitting apparatus for a vehicle including a drive source, a drive force transmitting path adapted to be connected to a drive shaft to transmit a drive force from the drive source to the drive shaft, and a clutch mechanism capable of connecting and disconnecting the drive force transmitting path. The drive force transmitting apparatus further includes a parking mechanism provided in the drive force transmitting path and capable of stopping the rotation of the drive shaft and an actuator mechanism capable of selectively operating the clutch mechanism and the parking mechanism.

Abstract: This invention relates to an actuable park pawl system for a hybrid electro-mechanical transmission located in the end cover portion of the transmission housing. The end cover portion is configured to cover the park pawl system and ancillary components such as the actuator guide. This enables the actuator guide to be an open-ended structure. A method of securing a park engagement system with an open-ended actuator guide in a vehicle transmission is further provided.

Abstract: The methods and devices for actuating a parking brake in a gearbox which is actuated in an automated manner, whereby gear changes are carried out by means of at least one electrically driven actuator, gear positions can be selected by means of a selector device, and the parking brake can be activated by means of the selector device when the vehicle is stationary or moving slowly. The invention also relates to a vehicle provided with an additional gearbox. The ignition key can only be removed, when the gearbox is in the P state and the additional gearbox is not in the N state. The further method and device, whereby the additional gearbox can only be shifted in the N state when the gearbox is not in the P state. The methods and a device for carrying out the same, by automated manual gearboxes, especially parallel gearboxes, are controlled in such a way that the vehicle can be safely parked and can set off in a reliable and comfortable manner.

Abstract: A parking lock of an automatic transmission avoiding an undesirable engagement of a lock member (2) in a parking lock gear, during occurring extreme accelerations in normal driving of a motor vehicle. An arrester (7) is provided which, in the driving gear stages of the transmission, retains the lock member (2) with an arresting shape fit.

Abstract: This invention relates to the housing of a hybrid electro-mechanical transmission consisting of park pawl system located in the end cover portion of the transmission housing. The end cover portion is configured to cover the park pawl system and allow access to the components of the park pawl system for assembly or service even as the end cover portion remains attached to the main housing of the transmission. An access cover and seal for the access opening in the end cover portion is also provided. The access opening is designed to be small enough so that the end cover portion can also provides structural support to a main housing portion during operation of the transmission. A method of selectively providing access to a park pawl system located in the end cover portion of a transmission housing is also provided.

Abstract: A P-ECU determines whether or not energization to an actuator is shut off when a shift-range switch instruction is unissued. If energization to the actuator is shut off, the P-ECU obtains a current rotational position of the actuator according to a count value obtained by an encoder. If a difference between a target rotational position and the current rotational position exceeds a predetermined amount, positional correction control is exercised.

Abstract: A parking lock for an automated transmission of a motor vehicle includes a first spring-type actuator for engaging the parking lock, a transmission actuator, a release device operable using the transmission actuator for disengaging the parking lock, and a retaining device. The retaining device is configured to counteract at least one of the spring-type actuator and a second spring-type actuator so as to hold the parking lock in a disengaged state.

Abstract: A blocking and releasing of actuating elements especially used in a manually shifted automatic transmission in vehicles for a manual gear input unit with a plurality of actuating elements, e.g., a selector lever and a button. A manual gear input unit (1) is selected for selecting gears with a first actuating element 2 for selecting at least one gear and with at least one additional actuating element 3 for setting additional functions. A detent pawl (6), which can be moved by means of an actuator 8 and by which the first actuating element and at least one additional actuating element 2, 3 can be locked and unlocked simultaneously, is provided.

Abstract: A parking brake especially for an automotive automatic gearbox or an automotive automated manual gearbox. The parking brake comprises a blocking device that blocks or unblocks the gearbox in response to an actuation signal triggered by an actuation device. The blocking device is brought into the blocking position by actuating a spring accumulator (10) and the blocking device is released from the blocking position by either hydraulic or pneumatic pressure while simultaneously pretensioning the spring accumulator (10). The parking brake is further provided with a mechanically actuating locking device (40) for maintaining the blocking device in the non-blocking condition, and with an electromagnet (40) that can be supplied with current and that maintains the locking device (40) in the locking position.

Abstract: All all-terrain vehicle has a shiftable transmission that is coupled to a variable speed V-belt transmission. The variable speed V-belt transmission is joined to a crankshaft through a centrifugal clutching arrangement. The shiftable transmission enables an operator to go between low, high, neutral, reverse, and park. In the park position, the transmission is locked from substantial rotation such that the engaged wheels of the all-terrain vehicle are also locked from substantial rotation, whether or not the engine speed is sufficient to allow the centrifugal clutch to be engaged with the variable speed transmission.

Abstract: A parking assembly 10 is provided for use in combination with a vehicle of the type having a park gear 12 and a shifter or shifting assembly 14 which is operatively used to select between several “gears” or vehicle operating modes. The parking assembly 10 includes a selectively and pivotally movable parking pawl member 20, a park rod assembly 22, and a servo mechanism 24 which selectively actuates park rod 22. The servo mechanism 24 is controlled by use of a controller 30 which monitors several sensors 32, 34 and which allows the park event to be calibrated based upon various selectable vehicle conditions or attributes.

Abstract: A hybrid driving device including an engine shaft, a motor shaft, and a countershaft. A parking gear, which has been conventionally placed on the countershaft, is placed on the engine shaft to reduce torque loads applied to parts associated with a parking mechanism and, at the same time, the countershaft is placed so as not to overlap an engine or a motor in a radial direction as a result of an axial length being shortened, thereby shortening the distance between the engine shaft and the motor shaft. The parts associated with the parking mechanism are placed in a dead space of an oil pan near a valve body, supported by the valve body and a casing wall, thereby cutting down on space required for arrangement.