A sensor assembly includes a first sensor including a first cylindrical sensor window defining an axis; an annular member substantially centered around the axis, fixed relative to the first sensor, and supporting the first sensor; a second sensor fixed relative to the annular member and suspended from the annular member, the second sensor including a second cylindrical sensor window defining the axis; a first tubular ring fixed relative to the annular member and substantially centered around the axis, the first tubular ring including a plurality of first nozzles aimed at the first cylindrical sensor window; a second tubular ring fixed relative to the annular member and substantially centered around the axis, the second tubular ring including a plurality of second nozzles aimed at the second cylindrical sensor window; and two legs extending downward from the annular member and supporting the annular member.

A sensor assembly includes a first sensor including a first cylindrical sensor window defining an axis; an annular member substantially centered around the axis, fixed relative to the first sensor, and supporting the first sensor; a second sensor fixed relative to the annular member and suspended from the annular member, the second sensor including a second cylindrical sensor window defining the axis; a first tubular ring fixed relative to the annular member and substantially centered around the axis, the first tubular ring including a plurality of first nozzles aimed at the first cylindrical sensor window; a second tubular ring fixed relative to the annular member and substantially centered around the axis, the second tubular ring including a plurality of second nozzles aimed at the second cylindrical sensor window; and two legs extending downward from the annular member and supporting the annular member.

A roof module for a motor vehicle may have a roof skin, a roof frame on a vehicle body and have at least one transverse frame part extending in the transverse roof direction and a longitudinal frame part extending in the longitudinal roof direction on either side of a longitudinal center roof plane, and a roof opening system having a lid element configured to be displaced on guide rails, which are part of the longitudinal frame parts of the roof frame, in the longitudinal roof direction relative to the roof frame, and/or a solid roof element having a transparent see-through portion and being rigidly connected to the roof frame, having a sensor system comprising at least one sensor module which has at least one environmental sensor and is located outside of the roof opening and/or outside of the transparent see-through portions and is covered by a cover element.

An onboard washing system provides the ability to wash specific areas at the rear of a concrete truck, without requiring an operator to climb a ladder or climb on the truck. Certain specified areas which are traditionally difficult to wash, including the inside of the charge hopper, the interior portions of the discharge chute, and rear portions of the mixing drum structure, can now be washed in an automated and efficient manner. The truck-mounted washing system has components which are specifically positioned to cause washing fluid (water) to be sprayed or directed toward predetermined areas in an efficient and effective manner. The system also includes hand-held washing wands or washing mechanisms, which allow an operator to easily reach additional zones or additional areas at the rear of the truck, which are lower. Most significantly, the truck-mounted wash systems and the hand-held nozzle systems (wand) are all operable while an operator remains on the ground.

An onboard washing system provides the ability to wash specific areas at the rear of a concrete truck, without requiring an operator to climb a ladder or climb on the truck. Certain specified areas which are traditionally difficult to wash, including the inside of the charge hopper, the interior portions of the discharge chute, and rear portions of the mixing drum structure, can now be washed in an automated and efficient manner. The truck-mounted washing system has components which are specifically positioned to cause washing fluid (water) to be sprayed or directed toward predetermined areas in an efficient and effective manner. The system also includes hand-held washing wands or washing mechanisms, which allow an operator to easily reach additional zones or additional areas at the rear of the truck, which are lower. Most significantly, the truck-mounted wash systems and the hand-held nozzle systems (wand) are all operable while an operator remains on the ground.

An optical monitoring system serves to monitor surroundings, having a monitoring apparatus, the visual or scanning field of which is captured by a lens, and a protection panel (112) which protects the lens from precipitation and covers at least the visual or scanning field of the monitoring apparatus. In order to avoid the signal quality of the monitoring apparatus being impaired by precipitation on the protection panel, it is proposed that the protection panel (12; 112; 218; 318) is acoustically coupled to at least one ultrasonic transducer (10). The optical monitoring system can be included into the control system of a vehicle for autonomous driving, wherein, overall, it is possible to obtain increased safety of the control system.

An optical monitoring system serves to monitor surroundings, having a monitoring apparatus, the visual or scanning field of which is captured by a lens, and a protection panel (112) which protects the lens from precipitation and covers at least the visual or scanning field of the monitoring apparatus. In order to avoid the signal quality of the monitoring apparatus being impaired by precipitation on the protection panel, it is proposed that the protection panel (12; 112; 218; 318) is acoustically coupled to at least one ultrasonic transducer (10). The optical monitoring system can be included into the control system of a vehicle for autonomous driving, wherein, overall, it is possible to obtain increased safety of the control system.

A method for operating a motor vehicle with at least one exterior camera includes detecting whether the motor vehicle is put into operation before a driver gets into the motor vehicle, determining whether there is any contamination of the at least one exterior camera, in particular of a lens and/or a cover of the exterior camera, and outputting at least one signal in the event of certain contamination and detected start-up. A motor vehicle includes a control or regulating device designed to carry out the method.

A method for operating a motor vehicle with at least one exterior camera includes detecting whether the motor vehicle is put into operation before a driver gets into the motor vehicle, determining whether there is any contamination of the at least one exterior camera, in particular of a lens and/or a cover of the exterior camera, and outputting at least one signal in the event of certain contamination and detected start-up. A motor vehicle includes a control or regulating device designed to carry out the method.

A system for distributing a fluid in a vehicle, comprising: a plurality n of independent fluid ejection devices; a plurality n1 of distributors, each having an inlet, a first outlet and a second outlet and being configured to establish a fluid connection either between the inlet and the first outlet or between the inlet and the second outlet; the inlet of a first distributor being connected to a pump connected to a fluid reservoir; each independent ejection device being connected to an outlet of a distributor; at least one outlet of a distributor being connected to the inlet of a subsequent distributor.