A wiper apparatus includes a wiper axis interface configured for mounting a wiper assembly to a wiper drive. A lower wiper arm extends from the wiper axis interface to a wiper mount that is configured to connect the lower arm to an upper arm. A first end of the lower wiper arm proximate the wiper axis interface has a first airfoil profile and wall thickness. A second end of the lower wiper arm proximate the wiper mount has a second airfoil profile and wall thickness. An intermediate portion of the lower wiper arm extending between the first and second ends has a transitioning airfoil profile and thickness that transitions from the first airfoil profile and wall thickness to the second airfoil profile and wall thickness.

The invention relates to a wiper device, in particular a motor vehicle windshield wiper device, comprising a wiper strip unit (10), which comprises a wiper strip element (20) having a longitudinal guide channel (12) for guiding a carrier element (14). According to the invention, the longitudinal guide channel (12) comprises a longitudinal opening (16) which extends at least over the majority of the wiper strip element (20).

A wind deflector for a windscreen wiper system of a motor vehicle has a receptacle for fastening the wind deflector to a component of a wiper arm of the windscreen wiper system. The wind deflector has at least two parts which can be mounted in a divided state on the component of the wiper arm and subsequently can be joined together, as a result of which the wind deflector can be secured to the component of the wiper arm of the windscreen wiper system.

A windshield wiper system includes an arm hub connected to a drive shaft, a curved cantilever beam connected to the arm hub, and an elastomeric wiper blade element. The curved cantilever beam has a cross-sectional shape. The elastomeric wiper blade element includes a mounting channel shaped to engage with the cross-sectional shape of the curved cantilever beam such that the elastomeric wiper blade element can be installed on the curved cantilever beam.

A windscreen wiper device of the flat blade type comprising an elastic, elongated carrier element, as well as an elongated wiper blade of a flexible material, which can be placed in abutment with a windscreen to be wiped, which wiper blade includes at least one longitudinal slit, in which slit at least one longitudinal strip of the carrier element is disposed, which windscreen wiper device comprises a connecting device for a rod-like extension of an oscillating arm, wherein said rod-like extension can be pivotally connected to said connecting device about a pivot axis near a free end thereof, wherein said connecting device comprises a first part and a second part, wherein said rod-like extension of said oscillating arm can be pivotally connected to said first part about said pivot axis, with the interposition of said second part, wherein said first part is connected to said wiper blade and said second part is pivotally (preferably also detachably) connected onto said first part, wherein said second part comprises a channel arranged to receive said free end of said rod-like extension, with the special feature that said windscreen wiper device comprises a housing for said rod-like extension, wherein said housing is arranged to be connected to said second part, and wherein said housing comprises a channel to receive said rod-like extension, said channel of said housing in mounted position being co-axial with said channel of said second part.

The invention relates to a windscreen wiper blade for a vehicle. The wiper blade at least one wiping strip configured to wipe a glazed surface of the vehicle, a stiffening member including a vertebra support and at least one vertebra configured to stiffen the wiping strip, a central mounting configured to be connected to a drive arm of the windscreen wiper blade, an air deflector connected to the vertebra support, two connectors rigidly connected to the at least one vertebra. The wiper blade also includes a spraying device configured to spray a washing fluid onto the glazed surface with spraying openings, and a washing-fluid distribution device configured to distribute washing fluid to the spraying device.

Systems and methods for estimating wiper friction in a vehicle can include receiving, by a processor, sensor data indicating electrical power input to a wiper motor and a position of a wiper blade coupled to the wiper motor. Calculating, by the processor, an estimated wiper friction based on an energy balance model using the electrical power input and changes an energy of the wiper blade. Determining, by the processor, an average friction power loss over a defined calculation window of wiper blade movement. The method can also include providing, by the processor, the average friction power loss as an input to an automatic wiper control system.