Scania Cv Ab

Man Truck & Bus Se.

Per Arnelöf

Peer Norberg

Jörgen Forsberg

Dieter Slapak

Stefan Karlsson

Mårten Dahlbäck

Tomas Selling

Daniel Häggström

Daniel Petersen

Mattias Ingesson

Tomas Löfwall

Nichlas Florén

Tobias Müller

Gustav GÖRANSSON

Paolo Fornaseri

A retarder arrangement () is configured to brake rotation of a shaft () of a vehicle (). The arrangement () includes a retarder rotor (), a retarder transmission (), a lubricant feed conduit () arranged to conduct lubricant to the retarder transmission (), a coupling device (), and an actuator element (). The actuator element () is moveable between an actuated position and an unactuated position to move the coupling device () between an engaged state and a disengaged state. The coupling device () is configured, in the engaged state, to connect the retarder rotor () to the shaft () via the retarder transmission (), and in the disengaged state, to disconnect the retarder rotor () from the shaft (). The lubricant teed conduit () includes a valve () mechanically connected to the actuator element (). The present disclosure further relates to a transmission arrangement (), a power train (), and a vehicle ().

Retarder arrangement and related devices

A power take-off arrangement () for a vehicle () that includes an input shaft (), a main transmission member (), a main coupling device (), a first power take-off unit (), a second power take-off unit (), a first coupling device (), and a second coupling device (). The first coupling device () and the second coupling device () are configured to connect, in an engaged state, a respective power take-off unit () to the main transmission member (). The first and second coupling devices () are connected to the main coupling device () such that the main coupling device () is controlled to be in the engaged state when any one of the first and second coupling devices () is in the engaged state.

Power take-off arrangement, powertrain, and vehicle

A shift control arrangement in a gearbox comprising a first shift rod having a first end connectable to a first power means and second end connected to a first shift fork; a second shift rod having a first end connectable to a second power means and a second end connected to a second shift fork; a first set of grooves arranged in the first shift rod, a second set of grooves arranged in the second shift rod; and first and second lock pins arranged between the first and second shift rods, which together with the first and second set of grooves restricts or allows axial movement of the respective first and second shift rod.

Shift control arrangement in a gearbox

A gearbox for a vehicle that includes a planetary gear with a ring gear, a sun gear and a planet gear carrier, on which at least one planet gear is rotatably mounted, which ring gear and sun gear are configured to engage with the at least one planet gear; a gearbox housing surrounding the planetary gear; an input shaft and an output shaft for the transfer of torque to and from the gearbox; a first axially movable coupling sleeve for selectively engaging and disengaging the planetary gear with/from the gearbox housing and for selectively engaging and disengaging the ring gear, the sun gear and the planet gear carrier with/from each other; and a second axially movable coupling sleeve for selectively engaging and disengaging the output shaft with/from the ring gear and with/from the planet gear carrier.

Gearbox for vehicles and vehicles comprising such a gearbox

A gearbox for vehicles that include a split gearbox, a main gearbox and a range gearbox. The range gearbox is shiftable into a low range gear, a high range gear and a reverse gear. The range gearbox includes a planetary gear, which may be shifted into a reverse gear. The split gearbox and the main gearbox are together arranged to have a combined ratio spread larger than 5, in that the split gearbox and the main gearbox are together arranged to have a combined largest gear ratio over 4:1, and in that the planetary gear in the range gearbox has a gear ratio less than 4:1 when shifted into the reverse gear.

Gearbox for vehicles

A gearbox for vehicles that includes a split gearbox, a main gearbox and a range gearbox, which is shiftable into a low range gear position and a high range gear position. The range gearbox includes a planetary gear with a ring gear wheel, a sun gear wheel and a planet carrier, on which at least one planet gear wheel is rotatably mounted. A gearbox housing surrounds the planetary gear. A first axially movable coupling sleeve engages the planet carrier with the gearbox housing. A second axially movable coupling sleeve engages the ring gear wheel with an output shaft to shift into a reverse gear. A crawler gear in the main gearbox is arranged to transfer torque through the gearbox when the range gearbox is shifted into the reverse gear.

A gearbox for vehicles, comprising a split gearbox (C), a main gearbox (A) and a range gearbox (B), which is shiftable into a low range gear, a high range gear and a reverse gear; the range gearbox (B) comprising a planetary gear () with a ring gear wheel (), a sun gear wheel () and a planet carrier (), on which at least one planet gear wheel () is rotatable mounted, which ring gear wheel () and sun gear wheel () engage with the at least one planet gear wheel (); a gearbox housing () surrounding the planetary gear (); a first axially movable coupling sleeve () arranged to engage the planet carrier () with the gearbox housing (); and a second axially movable coupling sleeve () arranged to engage the ring gear wheel () with an output shaft () for achieving the reverse gear in the gearbox (). The split gearbox (C) and the main gearbox (A) are together arranged to have a combined largest gear ratio which is larger than the gear ratio in the planetary gear () in the range gearbox (B) when the planetary gear () is shifted into the reverse gear.

Provided is a shift control arrangement in a gearbox, comprising a first shift rod with a first end part connectable to a first power means and second end part connected to a first shift fork; a second shift rod with first end part connectable to a second power means and second end part connected to a second shift fork; a first set of grooves in the first shift rod, a second groove in the second shift rod; and a lock pin between the first and second shift rods, which lock pin, with the first set of grooves and the second groove restrict and/or allow axial movement of the respective first and second shift rods. The first end part of the first shift rod is provided with an axial directed cut out for non-conflicting with the lock pin, and the first end part of the second shift rod is provided with a control surface for axial movement of the lock pin.

The invention relates to a lubrication system and a-method for controlling the lubrication system. The lubrication system comprises a bypass line by which it is possible to lead a part of the oil flow in the oil line past a component to be lubricated and back to the oil sump, a first valve configured to regulate the oil flow through the bypass line and a control unit. The control unit is configured to receive information from at least one parameter related to the oil flow to said component to estimate a required oil flow to said component in view of said parameter and to regulate the first valve such that a part of the oil flow in the oil line is led to the bypass line and that a remaining part of the oil flow, which corresponds to the required oil flow, is led to said component.

Lubrication system and a method for controlling the lubrication system

The invention relates to a gearbox for vehicles, comprising a planetary gear with a ring gear a sun gear and a planet carrier on which at least one planet gear is rotatable mounted, which ring gear and sun gear engages with the at least one planet gear by teeth; and a gearbox housing surrounding the planetary gear. A first axially movable coupling sleeve is in a first gear position arranged to engage the ring gear with the gearbox housing in a second gear position arranged to engage the sun gear with the planet carrier and in a third gear position arranged to engage the planet carrier with the gearbox housing. A second axially movable coupling sleeve is in the third gear position arranged to engage the ring gear with an output shaft. The invention also relates to a vehicle, which comprises such a gearbox.

Growing community of inventors

Vendelsö, Sweden

Per Arnelöf