Volvo Truck Corporation

Ramachandran Sandrasekaran

Kent Augustsson

Marcel Palmgren

Martin Petersson

Leon Henderson

Tobias Andersson

Sundar Vignesh Alavandar

Luciano Scoparo

Boopathy Mani

Venkatachalam Ramasamy

Luiz Paulo Abreu

Deepak Sheelvant

Nachiappan Manickam

A vehicle wheel end assembly comprising a wheel hub, rotatably mounted on a wheel axle spindle by a wheel bearing s comprising a roller bearing. The wheel bearing has a bearing inner ring mounted on an external section of the wheel axle spindle and a bearing outer ring mounted in an internal section of the wheel hub. The assembly further comprises a threaded hub nut mounted at the end of the wheel axle spindle to fix the bearing inner ring on the wheel axle spindle and a rotational lock mechanism to prevent relative rotation between the bearing inner ring and the wheel axle spindle. The rotational lock mechanism comprises a tangential surface arranged to intersect a part of an inner circumference of the bearing inner ring at right angles to the axis of rotation in a plane located at or adjacent an outer radial end surface of the bearing inner ring.

Vehicle wheel end assembly and a vehicle

A control unit arranged to monitor a load distribution of a vehicle when the vehicle is in motion, the control unit comprising an interface arranged to receive a plurality of load values associated with one or more vehicle axles and/or one or more vehicle wheels from a plurality of load sensors arranged on the vehicle, wherein the control unit is arranged to determine a vehicle load distribution based on the plurality of load values, to compare the determined vehicle load distribution to a pre-determined allowable vehicle load distribution, and to trigger an emergency procedure in case the determined vehicle load distribution differs from the pre-determined vehicle load distribution by more than an allowable amount.

Methods and systems for monitoring vehicle load distribution

A vehicle calliper disc brake comprising a brake disc connected to a vehicle wheel and having inboard and outboard side surfaces and a rotational axis; an actuator arranged in a calliper housing to displace at least one piston to actuate the disc brake; the calliper housing having facing first and second side walls on opposite sides of the brake disc, where the first side wall has at least one piston slidably mounted in a cavity between the side walls and where the second side wall is part of a calliper bridge extending from the first wall and spanning the brake disc.

Vehicle disc brake arrangement, brake pad, and vehicle

A wheel end assembly for a vehicle, comprising a central wheel support member such as a spindle or a steering knuckle, and an outboard wheel end bearing arranged concentrically around the central wheel support member. The outboard wheel end bearing comprises roller elements accommodated between an inner race-forming part and an outer race-forming part surrounding the inner race-forming part. The inner race-forming part is configured to be supported by the central wheel support member. The central wheel support member comprises a first rotational lock portion. The inner race-forming part comprises a second rotational lock portion configured to engage with the first rotational lock portion to prevent the inner race-forming part from rotating relative to the central wheel support member. The invention also relates to a vehicle comprising such a wheel end assembly.

Rotational lock in inner ring of outboard bearing to avoid lock washer

A vehicle comprising a safety device comprising a supporting member having a first end provided with a joint part which is pivotally mounted on a side wall of the vehicle, and a second end configured to bear on the ground. The vehicle further comprises an actuator connected to the supporting member and configured to move it relative to the vehicle between an inactive position in which the supporting member is located along the vehicle side wall, with the second end at a distance from the ground, and a safety position in which the supporting member extends between the vehicle side wall and the ground, to limit vehicle roll by means of the second end bearing on the ground.

Vehicle and method for limiting vehicle roll

A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body (), first and second disc plates () releasably securable to the central disc body. Each disc plate has a wear surface and a disc body facing surface. The brake disc has a geometrical centre axis. Each disc plate has an inner periphery and an outer periphery extending from the wear surface to the disc body facing surface. A first ledge () mates with the inner periphery of the first disc plate, and a second ledge () mates with the inner periphery of the second disc plate. Each ledge comprises at least a ledge portion which is inclined relative to the geometrical centre axis for counteracting axial movement of the disc plates relative to the central disc body.

Brake disc and a vehicle

A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body () having a first and a second side, wherein the second side faces in the opposite direction compared to the first side; a first and a second disc plate (), each disc plate having a wear surface for producing friction when a brake pad is pressed against the wear surface; wherein the disc plates are releasably secured to said first side and said second side, respectively, of said central disc body, so as to enable the first and second disc plates to be replaced by other disc plates; and an enveloping sleeve () releasably secured to an outer circumference of the central disc body so as to apply a radially inwardly directed pressure to the disc plates.

A brake disc configured to be connected to a vehicle axle and to be squeezed between brake pads, comprising a central disc body () having a first and a second side (), wherein the second side faces in the opposite direction compared to the first side; a first and a second disc plate (), each disc plate having a wear surface for producing friction when a brake pad is pressed against the wear surface. The disc plates are releasably secured to said first side and second sides, respectively, so as to enable the first and second disc plates to be replaced by other disc plates. A connecting member () prevents rotation of the disc plates relative to the central disc body, the connecting member extending from the first disc plate, through a passage () in the central disc body, to the second disc plate. Also presented is a vehicle comprising such a brake disc.

The invention relates to a method of determining that a failure has occurred at or in a wheel end bearing of a vehicle. An estimated value of the temperature of the wheel end bearing is calculated by a processing circuitry. A measured value of the temperature of the wheel end bearing is acquired by a temperature sensor. The measured value is compared with the estimated value by the processing circuitry. When the measured value deviates from the estimated value by a predefined difference or more, then the processing circuitry determines that a failure has occurred. The invention also relates to a system for determining that a failure has occurred.

Method and system for determining that a failure has occurred at or in a wheel end bearing of a vehicle

The invention relates to a brake lever () for a drum brake arrangement (), said brake lever being designed for transmitting the movement of a cylinder rod () to a brake shaft (), wherein the brake lever () comprises a first portion () delimiting a hole () for fitting the brake shaft () and a second portion (), which is configured to be pivotally connected to the cylinder rod () and wherein the first portion and the second portion are offset from each other with respect to a central axis (X) of the hole (). The brake lever further includes a stiffening member () that extends along a direction (L) contained inside a plane (P) perpendicular to the central axis (X) of the hole and that includes an orifice () for fitting the brake shaft ().

Brake lever for a drum brake arrangement, said brake lever being designed for transmitting the movement of a cylinder rod to a brake shaft

The invention relates to a brake pad for a vehicle, adapted to be connected to a carrier around a rotatable brake disc which rotates around a geometrical centre axis, the brake pad comprising an upper side, a lower side, a friction surface extending downwardly from the upper side to the lower side and being adapted to be pressed against a brake disc, an opposite surface extending downwardly from the upper side to the lower side and being adapted to be faced away from the brake disc, wherein the lower side comprises at least one sliding portion configured to slide against a mating sliding portion of a carrier, wherein the at least one sliding portion extends downwards towards the opposite surface.

Brake pad for a vehicle, a brake arrangement, a brake system, and a vehicle

A hub lock nut assembly for retaining a vehicle wheel hub in position. The hub lock nut assembly comprising a hub lock nut and a mating component with which the hub lock nut is arranged to be mated in a mated position. The hub lock nut comprises a circumferential inner wall defining a central hole, the inner wall having a threaded portion. One of the hub lock nut or the mating component comprises at least one resilient portion adapted to be movable in a radial direction outwardly of the central hole when subjected to an external force provided by the other of the mating component or the hub lock nut. The at least one resilient portion having an engagement area for receiving said external force, wherein the engagement area is located radially outwardly of the threaded portion.

Hub lock nut assembly

There is provided a wheel bearing sealing arrangement for a wheel bearing of a vehicle, comprising an outboard bearing having an outboard periphery intended to face away from a central longitudinal axis of the vehicle and an inboard periphery intended to face towards the central longitudinal axis of the vehicle, wherein the outboard bearing comprises a first race-forming part and a second race-forming part which surrounds the first race-forming part; an outboard seal arranged between the first race-forming part and an opposite part; and a safety washer pressed against the outboard periphery of the first race-forming part, wherein the outboard seal comprises a sealing part pressed against and in direct contact with the safety washer. There is also provided a vehicle comprising such a wheel bearing sealing arrangement.

Wheel bearing sealing arrangement and a vehicle

The invention relates to a wheel end assembly for a vehicle, comprising a wheel end bearing, a hub casing including a first material and a different second material joined together as a single piece, the hub casing comprising a radially external body of said first material and a radially internal tubular core of said second material, the tubular core being provided concentrically around the wheel end bearing, and an annular seal which is concentric with the wheel end bearing and the hub casing, wherein the annular seal has a radial extension from the wheel end bearing towards and into contact with one of the external body and the tubular core, and wherein the annular seal is spaced apart from the other one of the external body and the tubular core. The invention also relates to a wheel end arrangement and to a vehicle.

Wheel end assembly for a vehicle

A brake drum system () for a wheel of a vehicle, comprising a brake drum () rotatable with the wheel, the brake drum having an inner surface () adapted to receive a friction-generating lining when a driver applies the brakes of the vehicle; a wheel end hub () adapted to be located radially between a drive axle of the vehicle and the brake drum (); and a substantially circular spring element () for concentrically aligning the brake drum () with the wheel end hub (), the spring element being adapted to be clamped between the brake drum and the wheel end hub for providing a radially directed spring force, wherein the spring element has an outer surface adapted to be pressed against the brake drum and an inner surface adapted to be pressed against the wheel end hub.

Growing community of inventors

Karnataka, India

Ramachandran Sandrasekaran