Abstract: An actuator arrangement for a twin-clutch transmission has a first and a second partial transmission. The first partial transmission contains odd forward gear stages and the second partial transmission contains even forward gear stages. At least one first and one second selector drum have in each case one controllable drive motor and at least one control cam. Each control cam is assigned at least one cam follower. The control cam of at least one selector drum encircles through at least 360°. The associated drive motor is designed to drive said selector drum through at least 360°. The gear stages are distributed on the two selector drums, and arranged on the control cams, in such a way that at least one direct multiple shift can be carried out.

Abstract: A shift range change mechanism changes a shift range of an automatic transmission of a vehicle. A parking change mechanism disables rotation of a drive axle of the vehicle by engaging a park pole supported by a stationary member against a parking gear, which is rotated synchronously with the drive axle of the vehicle, at time of setting the shift range to parking. The parking change mechanism enables the rotation of the drive axle by disengaging the park pole from the parking gear at time of parking release of the shift range. An electric rotatable actuator drives the shift range change mechanism and the parking change mechanism. An SBW ECU controls power supply to an electric motor of the rotatable actuator. The SBW ECU increases an output torque of the electric motor only at the time of the parking release.

Abstract: A park/reverse inhibiting apparatus is disposed within a transmission control mechanism to inhibit movement of a cam plate selected from a forward or neutral position to a reverse position or park position when the vehicle speed is above a predetermined value. The inhibiting apparatus will also prevent movement from the reverse position to the park position depending upon the vehicle speed.

Abstract: A shifter mechanism includes a shift lever movable along a shift path and a detent assembly. The detent assembly includes a detent profile defining a plurality of gear positions, a bore, a detent plunger located at least partially within the bore, a spring member resiliently biasing the detent plunger into engagement with the detent profile, a split bushing located between the detent plunger and the bore, and a spacer located between the spring member and the bushing. The bushing is located between the spacer and an abutment of the detent plunger, and the spring member is located between the spacer and an abutment of the bore. Contact surfaces between the bushing and the abutment and between the bushing and the spacer are each angled so that a force of the spring member automatically expands the bushing to remove any free-play formed between the detent plunger and the bore.

Abstract: A gear changing device (1) has a gear lever (3) to operate a vehicle gear box, and several sensors to detect the movement of the gear lever with respect to the surroundings as a result of a force exerted by a user on the gear lever. The gear-changing device also has two electrical motors (5, 7), which are connected to the gear lever (3) via transmissions (9, 11). The transmission (9, 11) are formed by self-braking worm-worm wheel transmissions. The gear lever (3) can only be shifted if the electrical motors are actuated. The electrical motors shift the gear lever or permit the movement of the gear lever, depending on the sensor signals. The movement speed of the gear lever in this is such that it appears to the user that he has to overcome resistance to be able to shift the gear lever, so that the gear lever exercises a haptic effect.

Abstract: An actuating device (1) for a technical system, especially for selecting gears of a shift-by-wire speed-change gear includes an actuating element (2) with at least two shift positions and a locking device (8). The locking device (8) has at least one actuator (7) driven with auxiliary energy and is used to reduce the shifting path of the actuating element (2) or to lock the actuating element (2). The actuator (7) has at least three different shifting states to make it possible to embody the necessary locking functions of the actuating lever with a reduced number of actuators and hence with a comparatively low design effort. Space, weight and costs can thus be saved.

Abstract: A shifting device for the shifting of a transmission with a shifting shaft (2), having a multiplicity of shifting forks or shifting levers (8, 10, 12, 14) placed in an axial slidable manner for the carrying out of a shifting procedure with a selection apparatus (28, 30, 32, 42, 44, 46) for the choice of a shifting fork (8, 10, 12, 14) from the multiplicity of shifting forks for the carrying out of the shifting procedure and with blocking disk (52) for the prevention of the movement of non-chosen shifting forks (8, 10, 12, 14). The elements (2, 8, 10, 12, 14, 20, 22) for the carrying out of the shifting procedure are made from a material of high structural strength and the elements of the selection apparatus (28, 30, 32, 42, 44, 46) and the blocking apparatus (52) are constructed from a material of lesser structural strength.

Abstract: In a shifting assembly for a multiple-gear variable speed motor vehicle transmission, a central selector or shifting shaft (2) is mounted in the transmission housing (12) such that it can be rotated and displaced axially. By rotating the selector or shifting shaft (2) a coupling to be actuated in a shift gate can be selected, and by subsequently axially displacing the shaft, the gears can be engaged. At least two roller arms (4), spaced somewhat from one another, are positioned on the selector or shifting shaft (2), bearing a rod (6) between them. The rod (6) is mechanically linked with a contoured element or lever (16) that is mounted in the transmission housing (12) such that it can swivel. The contoured edge (20) of the contoured element or lever (16) mirrors the selection patterns and is spring loaded against the rod (6) by a spring element (18).

Abstract: A shifting apparatus for an automatic transmission of a vehicle has a shift lever; a push knob (1d) operable in a pushing manner; an erroneous operation preventing window (12); a rod lock pin (1c) adapted to be lowered by the pushing down operation of the push knob (1d); and a lock mechanism operated by the descending motion of the rod lock pin (1c) to release the engagement with the erroneous operation preventing window (12) in order to enable the swing motion of the shift lever (1) from the predetermined position. The lock mechanism includes a pivot member pivotable around a pivot shaft on the shift lever (1) and normally urged toward a side limiting the swing motion of the shift lever (1). The pivot member has a first branch (8b) adapted to engage and disengage the erroneous operation preventing window (12) according to its pivot motion.

Abstract: A shifting device for a change-speed transmission, in particular for a motor vehicle, having a shifting gate which has at least one recess, and having a first guide pin which is arranged in such a manner that it engages in the recess of the shifting gate in order to prevent a simultaneous engagement of two speeds of the change-speed transmission, wherein a second guide pin is arranged at a distance from the first guide pin, and in that the shifting gate on the one hand and the guide pins on the other hand can be moved relative to each other in order to change over between different speeds of the change-speed transmission.

Abstract: The invention relates to a transmission shift device (30) for a transmission (6) having one range group transmission (14) and one shift lever (16) with a superposed H-shaped shift pattern in which a shift and selector shaft (32) is operatively connected by one end (34) with the shift lever (16) and by the other end with a transmission-side shift means, one blocking device actuatable with pressure means which prevents or at least makes detectable for the driver of a motor vehicle the inadvertent activation of transmission gears in a range group change so that the shift and selector shaft (32) is autonomously displaceable from a shift gate (G5-G6) to the shift gate (G3-G4) of the next two lower gears (G3, G4).

Abstract: A tractor with a PTO apparatus, comprises: a plurality of wheels; a vehicle body supported by the plurality of wheels; an engine supported on the vehicle body; a rear PTO shaft disposed at a rear of the vehicle body for transmitting power from the engine; a mid-PTO shaft disposed under the vehicle body for transmitting power from the engine; a PTO mode selecting device having a first position for transmitting power only to the rear PTO shaft, a second position for transmitting power to both the rear PTO shaft and said mid-PTO shaft, and a third position for transmitting power only to said mid-PTO shaft; a PTO clutch disposed on a transmission line upstream of said PTO mode selecting device and switchable between an engaged position and a disengaged position; and a restricting mechanism for preventing a change operation of said PTO mode selecting device when said PTO clutch is in the engaged position, and permitting the change operation of said PTO mode selecting device when said PTO clutch is in the disengage

Abstract: A shifting device for shifting a transmission with a shifting shaft upon which a plurality of shifting forks are located in an axial, slidable manner for carry out desired shifting procedures. The shifting device includes a selection apparatus for choosing the shifting fork to be activated for carrying out the shifting procedure and a blocking mechanism, which prevents movement of each of the non-chosen shifting forks. The blocking mechanism is located on an additional shaft which extends parallel to the shifting shaft and supports elements of the selection apparatus. A first actuator axially displaces the shifting shaft, when carrying out of the shifting procedure, and another actuator causes the additional shaft to rotate for choosing a desired the shifting fork to carry out the shifting procedure and for preventing movement of non-chosen shifting forks.

Abstract: In a clearance-free supporting structure for a pivotal axle applicable to an operation device of a multi-stage automatic transmission, at least one pair of first projections is formed on a housing between which the pivotal axle is inserted to enable a pivotal movement of the pivotal axle, a pair of left and right truncated cone shaped portions are formed on the pivotal axle, at least one pair of second projections is formed on the housing to graspably contact with the pair of left and right truncated cone shaped portions to enable the pivotal movement of the pivotal axle, at least one recessed portion formed on the housing at a position placed in proximity to a base portion of each of the pair of first projections to enable a slidable contact thereof with the pivotal axle, and a biasing device biases the pivotal axle to be pressed toward the recessed portion.

Abstract: A shifter for controlling a vehicle transmission includes a base and a shift lever movably mounted to the base for movement between a plurality of gear positions. At least one of the gear positions comprises a PARK/NEUTRAL position having a PARK and a NEUTRAL control feature. The shifter includes an input device configured to switch between PARK and NEUTRAL upon actuation of the input device by an operator. An indicator on the shift lever indicates if the transmission is in PARK or NEUTRAL.

Abstract: A device for controlling a gearbox, in particular for a motor vehicle, comprising a lever pivotably mounted in a fixed support and permanent magnets borne by a components integral with the lever or displaceable by the latter and cooperating by magnetic attraction or repulsion with permanent magnets mounted on the fixed support along the paths covered by the permanent magnets displaced by the lever for defining stable positions of the lever, detent ball forces applied to the lever between the stable positions and forces for restoring the lever towards its stable positions.

Abstract: The gearbox comprises a case, a rod mounted on the case, a pair of sliding shift forks mounted on the rod, and travel-limit elements arranged on the rod for defining travel-limit positions for the shift forks. The travel-limit elements comprise a pair of bushes which are separate from the rod and have each a first axially outer larger-diameter portion and a second axially inner smaller-diameter portion so as to define at least one axial abutment surface for the shift fork adjacent thereto.

Abstract: A shift device in a manual transmission of a motor vehicle having a central selector shaft (6) with two rocker arms (7, 8) to which a spindle (9) is supported. The spindle (9) supports a roller (10), which communicates with a pivotally mounted, spring-loaded contour element (2). The contour element (2) has a gate guide which extends in a circular arc (k) concentric with the selector shaft (6). The rocker arms (7, 8) have guide pins (19) which extend parallel to the selector shaft (6) on a radius (R) of the circular arc (k). The guide pins (19) are moveable through axially directed movement of the selector shaft (6) to engage the gate guide.

Abstract: An actuating device is provided for selecting gears of an automatic transmission. The actuating device includes a rotatable actuating element as well as a crank arrangement (9) with stop elements (Mn) for limiting the rotation angle of the actuating element to a total switching angle. The actuating element may assume n switching positions within the total switching angle. The crank arrangement (9) has a separate stop element (Mn), which can be activated in a controlled manner, and a crank area (12, 13) for each of the n switching positions. The crank area (12, 13) comprises at least one crank segment (A, B, C, . . . ), between the end stops of which a stop element (Mn) can assume one of n relative positions, which correspond to the n switching positions. The crank segments (A, B, C, . . . ) are arranged distributed over the total crank angle such that all n relative positions are occupied by the n stop elements (Mn) for each relative switching position (1, 2, 3, . . . ).

Abstract: The present invention provides for an instrument panel assembly for a vehicle. The instrument panel assembly includes a dashboard with an interior panel disposed proximal to the dashboard. A shift lever is pivotally attached to the interior panel and movable between a drive position for allowing movement of the vehicle and a park position for preventing movement of the vehicle. At least one wall extends inwardly from the interior panel to define a pocket complementary in configuration to a portion of the shift lever for receiving the shift lever when in the parked position and the shift lever spaced from the pocket when in the drive position.

Abstract: A shift lever apparatus includes a detent pin, and the distal end portion thereof is attached to a shift lever so as to be movable in the direction of coming into and out of contact with the shift lever. A lever guide is formed with a transition sliding surface on which the distal end of the detent pin slides along the operation of the shift lever on the back surface thereof. A gate portion is provided on the transition sliding surface, and limits the direction of movement of the detent pin in the direction practically matching the selecting direction by coming into contact with the distal end portion of the sliding detent pin. Accordingly, the direction of movement of the shift lever is limited only to the direction practically matching the selecting direction by a force transmitted from the gate portion via the detent pin when the shift lever passes through a transition guide groove.

Abstract: A process for preventing the engagement of an impermissible speed in an automated gearbox with a gear-switching member, which can be moved along a gear-selection speed range and out of it into speed step ranges containing the following steps: acquiring the speed step range in which the gear-switching member is moved; acquisition of the momentary vehicle speed; checking as to whether the speed, belonging to the particular speed step range related to the momentary vehicle speed, is permissible; acquisition of the triggering of a gear-switching actuator in case of an impermissible speed; and, triggering of a fault reaction upon the activity of the gear-switching actuator toward the setting of the speed that is recognized as impermissible. A device for implementing the method is also disclosed.

Abstract: A plate-like functional component and method of making same, in particular a gate plate of an automatic gear shift mechanism with locking gate is provided. The gate plate includes engagement holes for engagement elements which kinetically interact with the functional component. To allow high mechanical forces to be transmitted using this component while simplifying its production, and to as far as possible avoid impact noises during interaction with engagement elements which are guided inside the holes, it is provided that the functional component comprises, in sandwich form, three stamped parts, which bear flat against one another, and are unreleasably connected to one another. Each stamped part has at least two engagement holes for engagement elements which kinetically interact with the functional component. The engagement holes in the stamped parts are arranged congruently with respect to one another.

Abstract: A shifter for vehicles including a base structure and a shift lever that is movably mounted to the base structure. A shift gate controls movement of the shift lever between a plurality of control positions including at least PARK, NEUTRAL and DRIVE control positions. The shifter also includes a powered pawl having a pawl member configured to engage the shift gate. The pawl member defines a first position relative to the shift gate wherein the shift lever is locked in the NEUTRAL position. The pawl member also defines a second position relative to the shift gate wherein the shift lever is movable between the PARK, NEUTRAL and DRIVE positions. The pawl member further defines a third position relative to the shift gate wherein the pawl member locks the shift lever in the PARK position.

Abstract: In a shift lever, when a button of a knob is pressed, a link member is pivoted, and a detent rod is moved down. Further, impact sound or the like is restrained or prevented from being emitted by bringing the link member into contact with a contact member and elastically deforming the contact member. Here, a cover portion of the knob and the contact member are constituted by separate members. Therefore, the cover portion of the knob and the contact member can easily be constituted by materials suitable for respective functions.

Abstract: A handling mechanism of a gearshift which enable to shift endlessly into neutral, first-speed, second-speed, third-speed, fourth-speed, fifth-speed, neutral, first-speed, second-speed, third-speed, fourth-speed, fifth-speed for example can be used for the wire-typed and lot-typed transmission. The gearshift handling mechanism can be shifted endlessly and mechanically into neutral, first-speed, second-speed, third-speed, fourth-speed, fifth-speed, neutral, first-speed, second-speed, third-speed, fourth-speed, fifth-speed for example via the operation lever which is moved in the forward-backward direction.

Abstract: A shifter includes an actuator, such as a shape memory alloy wire, to control movement of a set of strategically placed magnets on lever-position-controlling components of a vehicle transmission shift lever. In one arrangement, the actuator controls movement of a carrier carrying one or more of the magnets, the magnets controlling a position of a blocking member to prevent moving a pawl out of park position until predetermined vehicle conditions are met. Alternatively, the magnets can be carried by a cam, or slide, or wheel.

Abstract: A transmission gear selector including a pivotal shift lever with a grip portion and an attachment structure that is operably coupled to an automatic transmission for shifting the transmission. A locking member pivots with the shift lever and is moveably engageable with an engagement surface that defines a park position detent. When the locking member is engaged with the park position detent, the shift lever cannot be moved out of the park position. The mechanical linkage includes a driver-operated member which, when actuated, causes the mechanical linkage assembly to bias the locking member out of engagement with the park position detent. A solenoid disposed within the grip portion is coupled with the mechanical linkage assembly and includes a plunger that can prevent the mechanical linkage from biasing the locking member out of the park position detent. An installation method for a gear selector is also disclosed.

Abstract: An operating position select device has a select lever unit, a mode shift unit to shift operation modes of the automatic transmission, and an assist actuator controlled by a control unit. A first connecting member of the select lever and a second connecting member of the mode shift unit are relatively movable to a limit amount to each other and integrally movable beyond the limit amount with each other. The positions of the members are detected by an operating position sensor and an assist position sensor, respectively. The actuator is driven so that a difference between an operating position and an assist position may be reduced, but prohibited from driving when the difference is kept out of a permissible range for a predetermined period during rest of the actuator.

Abstract: In association with a solenoidal coil 10 being energized to unlock a shift lever 1C, a first movable core 9 and a second movable core 11 magnetically stick together so as to rotationally move in unison from an original position in which the first movable core 9 engages with the second movable core 11. Because the first movable core 9 and the second movable core 11 stick together before unlocking the shift lever 1C, it is possible to avoid the first movable core 9 from hitting the second movable core 11 so as to eliminate an operational noise. A lock plate 7 and a link plate 8 are rotatably provided around a rotational center 6 in relative to the solenoidal coal 10. This prevents the lock plate 7 and the link plate 8 from moving rotationally in unison with the solenoidal coil 10 so as to insure a smooth and quick rotational movement.

Abstract: A magnetic fluid shifter damper mechanism for a vehicle transmission may include a shift linkage having a first position and a second position, a magnetic fluid damper disposed between a substantially fixed point and a support point on the shift linkage, a fluid inside the magnetic fluid damper resisting substantially a motion of the support point relative to the substantially fixed point in the presence of a magnetic field, wherein the magnetic field is applied substantially to the fluid when the shift lever is in substantially the first or the second position, and wherein the magnetic field is removed substantially from the fluid when the shift lever is substantially between the first and the second position.

Abstract: In association with a solenoidal coil 10 being energized to unlock a shift lever, a first movable core 9 and a second movable core 11 magnetically stick together so as to rotationally move in unison from an original position in which the first movable core 9 engages with the second movable core 11. Because the first movable core 9 and the second movable core 11 stick together before unlocking the shift lever, it is possible to avoid the first movable core 9 from hitting the second movable core 11 so as to eliminate an operational noise which would otherwise be produced by hitting the first movable core 9 against the second movable core 11. A lock plate 7 and a link plate 8 are rotatably provided around a rotational center 6 in relative to the solenoidal coil 10. This prevents the lock plate 7 and the link plate 8 from moving rotationally in unison with the solenoidal coil 10, thus enabling the lock plate 7 and the link plate 8 to a smooth and quick rotational movement.

Abstract: A gearshift to transmission controller interface is based on a controller area network and a gearshift interface interposed between the gearshift and associated displays and the network bus. The shift controller can be made universal to all transmission types of automated manual transmissions by incorporation of a library program relating to a transmission type.

Abstract: A shift control system rotates an actuator to allow a wall of a detent plate and a roller of a detent spring to contact each other and then detects the position of contact so as to detect the position of the wall of the detent plate. After the wall position is determined, the actuator is driven in the direction opposite to the wall until the actuator reaches a position located before the wall position and distant therefrom by a predetermined amount, in order to cancel flexure or extension of the detent spring that is caused when the detent spring is pushed against the wall of the detent plate. Accordingly, such a situation where the shift position is moved by the recovery force of the detent spring can be avoided.

Abstract: Methods and apparatus are taught for controlling the operation of a power train in a motor vehicle (1), which may include controlling a clutch actuating mechanism (20) so as to open a clutch (3) in a vehicle pull mode. Then, a transmission (4) may be changed from a first gear position to a second gear position via a neutral position by moving a transmission actuator. At or about the same time, the ignition angle of a spark-ignited combustion engine (2) is preferably shifted during the gear change step to cause the combustion engine to generate a negative engine torque. As a result, engine speed is decreased when the transmission is disposed in the neutral position and a desired engine torque can be rapidly realized as soon as the transmission actuator is disposed in the second gear position. Thereafter, the clutch is closed again.

Abstract: Monostable shifting mechanism, in which two shifting channels are provided for the shift lever. “Monostable” means that the shifting element or the shift lever has only one stable position. As a function of the actual “operating condition” of the shifting mechanism, certain other operating conditions can be selected by means of the deflection of the shift lever. For this purpose, the shift lever is deflected manually in either one or the other shifting channel and, after the release, automatically returns into the stable starting position from any possible deflected position.

Abstract: The first gear/reverse gate switch of the present invention includes a detent switch including a contact pin and a contact switch. When a manual transmission is shifted to a gear not in the first gear/reverse gate, the contact pin of the detent switch engages a recessed portion on a detent mechanism such that the contact pin does not engage the contact switch. This indicates that the transmission is not in a gear in the first gear/reverse gate. When the manual transmission is shifted to a gear in the first gear/reverse gate, the interlock moves the detent, pushing the contact pin into engagement with the contact switch. This indicates that the transmission is in a gear in the first gear/reverse gate. The spring forces the detent into a “relaxed position” when not in the first gear or the reverse gate, breaking switch contact.

Abstract: A locking device is provided with a locking finger (12), the locking finger (12) being provided with a clearance space (12a).

Abstract: In a shift device for an electronically controllable control unit of a motor vehicle having a shift selector lever (1) which can be pivoted on a transverse spindle (7), mounted on a selector-lever support structure (20), against the action of a spring (10), the selector-lever support structure (20) being arranged together with the selector lever (1) pivotally on support hosing (23), which includes an opening (27) holding the spring (10), the selector lever support structure (20) has a slotted-guide opening (8) receiving a guide pin (9), which is supported in a slot (22) in the support housing (23) and can be shifted against the force of the spring (10), for shifting the selector lever (1) into at least two locking positions.

Abstract: A device for increasing a selection force is integrated into a support arrangement of a shift lever. The device is pivotable around a pivot axis and also around a tilt axis aligned transversely to the pivot axis. The selection force upon pivoting movements of the shift lever around the tilt axis is produced by at least one lever that is movable against a spring and a runoff roller placed in operative connection with the lever (24, 38). The device is integrated into a support arrangement for pivotable support of the shift lever by a casing in a housing. The support arrangement supports the shift lever pivotably with respect to the casing around the pivot axis and also supports the shift lever with the casing pivotably with respect to the housing around the tilt axis aligned transversely to the pivot axis.

Abstract: The shift-lever apparatus of an automatic transmission for enabling manual mode operation includes a housing, a shift-lever connected to a rotating unit disposed at a lower portion of the housing such that the shift-lever can rotate about the rotating unit, and a base member fixed to the shift-lever and enclosed by the housing, such that the base member moves according to the movement of the shift-lever. The apparatus also includes “+” and “?” switches, each being disposed at either side of the base member, such that the “+” and “?” switches are selectively operated according to the movement of the shift-lever. Finally, the apparatus includes a switch operating unit disposed at the base member such that the switch operating unit selectively presses the “+” and “?” switches.

Abstract: A gear change device including a shift lever support mechanism arranged in a casing to support a shift lever so as to slide in the axial direction of the casing and to rotate, a select actuator for operating the shift lever support mechanism to slide the shift lever in the axial direction which is the direction of selection, and a shift actuator for rotating the shift lever support mechanism to rotate the shift lever in the direction of shift. The shift actuator has an operation lever, with a base portion mounted on the shift lever support mechanism, and a pair of electromagnetic solenoids arranged facing each other, with the acting portion of the operation lever interposed therebetween. The solenoids are inclined with respect to the horizontal direction. A resilient urging member produces an urging force in the direction of operation of the electromagnetic solenoid which operates upward along the inclination.

Abstract: In a shift lever apparatus, a shift position can be changed from a “P” shift position only by turning a shift lever to a right side of a vehicle. Unless a brake is operated, it is possible to maintain a state in which a stopper portion is disposed in a right side of the vehicle in an abutting portion. Therefore, the abutting portion abuts the stopper portion, and the shift lever cannot be turned to the right side of the vehicle. When the brake is operated, a rotary plate is rotated in accordance that the shift lever turns to the right side of the vehicle. Accordingly, the abutting portion does not abut the stopper portion, and the shift lever can be turned to the right side of the vehicle.

Abstract: A judging section judges whether or not ranges detected, respectively, by a first range detection section consisting of a first detection section and a position detecting sensor, and a second range detection section consisting of a second detection section; a C1 detecting sensor and a B1 detecting sensor are in mutual agreement, and when the detected ranges are not in mutual agreement, a failure judging section judges a failure of the first range detection section.

Abstract: A shift device has an operation member for operating a vehicular automatic transmission. The operation member is formed to conform to the shapes of a hand and fingers of a driver.

Abstract: A transmission selector assembly for a vehicle having an automatic transmission settable to gear ranges of low-speed ranges, a high-speed range and a higher-speed range. The transmission selector assembly includes: a selector lever which is shiftable between forward-gear positions of, at least, a high-speed position where the transmission is allowed to be set to the high-speed range or the higher-speed range, and a low-speed position where the transmission is allowed to be set to the low-speed range; and a gearshift switch for switching the gear ranges between the high-speed range and the higher-speed range while the selector lever remains in the high-speed position, and between gear ranges other than the high-speed range and the higher-speed range while the selector lever remains in the forward-gear positions other than the high-speed position.

Abstract: A mechanical gear shifting mechanism capable of connection to a gearbox includes a shifter frame and a rotatable shaft mounted to the shifter frame. A ratchet drum having teeth is fixed to the shaft. A first cam disc formed with a slot in its main face is fixed to the shaft for rotation therewith. A shifting lever is connected to the shifter frame and is pivotable about an axis in first and second directions. First and second engagement pawls are connected to the shifting lever and positioned for engaging the teeth of the ratchet drum, whereby pivotal movement of the shifting lever induces rotational movement about the shaft's longitudinal axis. A pendant lever is engaged with the slot via a follower and has an end engageable to the gearbox. In practice, the end of the pendant lever would be connected to gear selectors of the gearbox.

Abstract: For locking individual gears, a “rod-type” locking element is provided which extends in the axial direction over several operating elements and which, in the individual possible transmission shifting positions, in each case, engages with some of the existing operating elements. When one of the operating elements is shifted out of its neutral position into a shifting position, the locking rod is brought into a locking engagement with at least some of the existing operating elements.

Abstract: A shifting system for a motor vehicle transmission shifts the transmission into the neutral and returns a steering column shift lever to the neutral position from the reverse position, when the vehicle speed is above a pre-determined positive value and the shift lever is shifted into the reverse position. The system may further shift the transmission into the neutral and returns the steering column shift lever to the neutral position from the forward drive position, when vehicle speed is below a pre-determined negative value and the shift lever is shifted into the forward drive position.

Abstract: A mechanical transmission system (10) is provided with a detent mechanism (156/172, 186/196) for applying a selectively variable detent resistance to disengagement of an engaged gear ratio. To provide resistance to shift lever (31) induced jumpout when no intent to shift is sensed, a greater detent resistance is provided, and to provide improved shift quality upon sensing an intent to shift, a lesser detent resistance is provided. The mechanism also may be utilized to maintain the transmission in neutral.