An engagement device of a wiper and a vehicle body may include a motor for driving the wiper; a motor bracket fixed to the motor; a cowl bracket fixed to the vehicle body corresponding to the motor bracket, and a mounting portion forming a fixing structure between the motor bracket and the cowl bracket, wherein the mounting portion comprises a protrusion protruded from the motor bracket or the cowl bracket, and a socket, the protrusion being inserted into and fixed to.

An accessory system for a vehicle includes a bracket having a windshield-facing side and a cabin-facing side. The windshield-facing side of the bracket is configured to be bonded by an adhesive at a first windshield location to an in-cabin surface of the vehicle windshield. The cabin-facing side of the bracket includes first structure. An accessory module is configured to mount to the bracket. A housing of the accessory module has second structure that directly engages the first structure of the bracket when mounting the housing to the bracket. An electronic device and circuitry are housed by the housing. With the accessory module mounted to the bracket attached to the vehicle windshield, the circuitry may be in communication with a vehicle bus system of the vehicle.

Method to estimate the wear state of wiper blades (5) of a vehicle windshield wiper unit (1), said windshield wiper unit (1) comprising: at least one wiper blade (5) configured to wipe a windshield surface (S) when activated, at least one motor (7) configured to activate the at least one wiper blade (5), a controller (9) configured to control the at least one motor (7), comprising the steps: deriving a friction coefficient (B) between the at least one wiper blade (5) and the windshield surface (S), using the derived friction coefficient (B) to determine the wetness of the windshield surface (S), if the windshield surface (S) is dry, using the derived friction coefficient (B) to estimate the wear state of the at least one wiper blade (5).

A detection device is provided for a motor vehicle (10) for detecting wetness (18) on a roadway (20). The detection device has a moisture-detection unit (12) and an evaluation unit (40) designed to determine wetness (18) on the roadway (20) on the basis of a moisture value (42) detected by the moisture-detection unit (12). The moisture-detection unit (12) is embodied as a sensor unit and is arranged at a rear region of the motor vehicle (10).

A one-body type rain sensor is attached to a vehicle glass to differentiate a raindrop and an external object which fall down onto the vehicle glass, where the one-body type rain sensor includes a light emission unit which emits light which is inputted onto the vehicle glass, a second light emission module which emits light which is inputted onto the vehicle glass, a light receiving unit which receives the light which is emitted from the light emission unit and the second light emission unit and reflected off the vehicle glass, and a control unit which outputs the light that the light receiving unit has received, in the form of a signal, thereby operating a wiper of the vehicle.

A rain sensor has a frost sensing function, and is attached to a windshield glass of a vehicle. The frost sensor includes a casing provided with a frost sensing region formed by recessing a part of the casing to contact indoor air; a light emitting unit that emits light such that the light is incident on the windshield glass; a light receiving unit that receives the light emitted from the light emitting unit and reflected from the windshield glass and the frost sensing region; and a control unit that outputs the light received by the light receiving unit as a control signal and activates a wiper and an air conditioner of the vehicle.

A method for preparing a change of a wiper blade of a vehicle, comprising the steps of: Authenticating a first entity as an authorized user of the vehicle, detecting a desire of the first entity to change the wiper blade, retrieving wiper information about the wiper blade of the vehicle, wherein the wiper information allows identification of a replacement part, relaying the wiper information to a second entity different from the first entity, and granting a right of use to the second entity for actuating a wiper system of the vehicle comprising the wiper blade.

A vehicle that includes at least one UWB transmitting antenna unit that is configured to emit a radio signal pulse in a defined transmission frequency range, at least one UWB receiving antenna unit that is configured to receive radio signals in the transmission frequency range, and a processing unit that is configured to evaluate the signal strength pattern of the radio signal received by the UWB receiving antenna unit. The processing unit includes a precipitation detection module that is designed to ascertain precipitation based on a signal strength pattern of the radio signal received by the UWB receiving antenna unit.

A cleaning method (1) for cleaning a glazed surface (20) of a vehicle (2), said vehicle (2) comprising a cleaning device (21) comprising a wiping system (210) with at least one spray device for spraying a liquid (Lq), characterized in that said cleaning method (1) involves verifying (E1) a first condition (C1) that the current season (sc) is spring or summer, verifying (E2) a second condition (C2) which is the probability (pb) of there being insect strike (is) on said glazed surface (20), and verifying (E3) a third condition (C3) that said vehicle (2) is stopped. If all of the conditions (C) are met, then activating (E4) the cleaning device to begin a cleaning cycle (Cy), and executing (E5) the cleaning cycle (Cy) using said cleaning device (21).

A debris management system includes a slider adapted to move in first and second directions along a track disposed across a vehicle surface. The slider has a first side facing the first direction, a second side facing the second direction, and a spray barrier disposed along each of the first and second sides. A wiper mechanism extends from the slider and is adapted to make contact with the vehicle surface.