In a vehicle wiper apparatus, rotation of an output shaft of a wiper motor is converted to reciprocal rotation of a pivot shaft, and a wiper member, attached to the pivot shaft, reciprocally rotates between closed and open positions. A nozzle, provided in the wiper member, sprays a cleaning fluid towards a front side in an advancing direction of the wiper member on at least one of forward and return paths of the reciprocal rotation. A washer pump supplies the cleaning fluid to the nozzle. A round-trip time of the wiper member is detected based on a detection result of a detecting unit that detects at least a state in which the wiper member is positioned in the closed position. The washer pump is controlled based on a detected round-trip time, and is operated during rotation of the wiper member on at least one of the forward and return paths.

The present invention relates to a cleaning device for cleaning at least one optical system of a vehicle, comprising an actuator which has an actuator body which delimits a chamber, a piston with the ability to move in the chamber, and a rod connected to the piston, one end of the rod emerging from the actuator body, said rod comprising at least one cleaning-fluid-spraying element formed at the end of the rod, the rod comprising at least one cleaning-fluid circulation duct which connects the chamber to said at least one spraying element, characterized in that the cleaning device comprises at least one switch activated according to the position of the piston.

A method for controlling a sensor assembly cleaning apparatus includes receiving sensor data from various vehicle sensors, determining a level of obscurement of the transparent surface, and determining whether the level of obscurement exceeds a threshold level. If the transparent surface is obscured beyond the threshold level, a control signal may be sent to the apparatus to initiate the ejection of pressurized air onto the transparent surface. Optionally, the method may further evaluate other parameters such as the vehicle velocity in relation to a threshold vehicle velocity prior to sending the control signal to ensure that the cleaning operation using pressurized air would not be superfluous in light of the vehicle velocity. In addition, a method for selectively activating the sensor assembly cleaning apparatus includes determining an activation schedule for the apparatus based on an arrangement of transparent surfaces and controlling the apparatus to operate based on the activation schedule.

A valve body has an inflow passage for a working fluid, an outflow passage for the working fluid, and a pressure relief passage, which connects the inflow passage and the outflow passage by bypassing a normally close valve seat. A pressure relief valve is located in the pressure relief passage. The pressure relief valve closes the pressure relief passage, if a pressure of the working fluid in the outflow passage is lower than, is equal to, and is higher by a pressure difference less than a predetermined relief pressure than a pressure of the working fluid in the inflow passage. The pressure relief valve opens the pressure relief passage, if the pressure of the working fluid in the outflow passage is higher by a pressure difference equal to or higher than the relief pressure than a pressure of the working fluid in the inflow passage.

An electromagnetic valve is configured with an electromagnetic section, a flow path section, and a sealing member between them. This separate arrangement improves a degree of freedom for arranging inflow and/or outflow passage. This separate arrangement also enables to reduce a size of the electromagnetic section. A plunger comes in contact with a central portion of a spherical portion of a valve member. A normally open compression spring comes in contact with a peripheral portion of the valve member. The valve member can be reliably seated on the normally close valve seat even if the plunger is slightly tilted.

A fluid distributor comprising: a fluid inlet, a first outlet connected to the inlet by a first fluid communication channel, a second outlet connected to the inlet by a second fluid communication channel, an actuator comprising a movable piston capable of moving between an initial position and a switched position; a first deformable diaphragm, in contact with the first end of the piston, and configured to close the first channel when the piston is in its switched position; a second deformable diaphragm, in contact with the second end of the piston, and configured to close the second channel when the piston is in its initial position.

The present invention relates to a valve for a system for spraying a cleaning liquid, said valve comprising: —a valve body including a hydraulic cavity configured to be fluidically connected to a hydraulic channel of the spray system and intended to receive the cleaning liquid, —a plunger configured to be displaced in the hydraulic cavity between an open position, in which it allows the cleaning liquid to enter the hydraulic channel, and a closed position, in which it prevents the passage of the cleaning liquid through the hydraulic channel, —a compressible elastic element containing a gas disposed in the hydraulic cavity and configured to be compressed if the cleaning liquid in the valve freezes.

The invention relates to a control device for a driver assistance system, wherein the control device comprises a sensor interface via which the control device can be connected to at least one sensor module to receive data from the at least one sensor module, a power processor which is adapted to detect objects and to provide object data based on the data from the at least one sensor module, and a system interface via which the control device can be connected to a higher-level control device of the driver assistance system for forwarding object data provided by the power processor.

A cleaning target provided to a vehicle is automatically cleaned in an appropriate manner. A vehicle cleaning system includes a cleaning section configured to clean a cleaning target provided to a vehicle, and a control section configured to control cleaning of the cleaning target by the cleaning section according to at least one out of a travel situation of the vehicle, an environmental situation of the vehicle, or an indicator relating to adhesion of adhered material to the cleaning target of the vehicle.

A method for determining a cleaning strategy for cleaning a surface to be cleaned of a motor vehicle. The surface to be cleaned is selected in dependence of a cleaning mode. A sensor is operatively connected to the surface to be cleaned. The sensor exhibits an actual availability. The cleaning strategy exhibits a control quantity setpoint defining a cleaning process for the surface to be cleaned. Moreover, the method relates to a cleaning method, a use of a cleaning strategy, a cleaning system and a motor vehicle.