Cars are equipped with the lever switch with a ring of regulation of frequency of movement of brushes in the automatic mode or system of automatic change of frequency of movement of brushes in the faltering mode. In both cases on cars are established:

– the regulator of sensitivity of the sensor on the screen wiper switch lever;

– system of automatic change of frequency of movement of brushes in the faltering mode and light sensor.

For inclusion of system install the screen wiper switch in the situation corresponding to a faltering operating mode. At switching off of ignition install the screen wiper switch in situation "stop", then again in situation "faltering operating mode".

In case of the increased resistance to the movement of levers of a screen wiper (for example, at the movement with a high speed) the block of protection and switching automatically transfers a screen wiper to an operating mode at a smaller speed.

In case of jamming of the mechanism of a screen wiper (for example, when freezing brushes to a windshield) the block of protection and switching automatically powers off the electric motor only on the motionless car.

If screenwash is included by the switch or the sensor of a rain, then at inclusion of transfer of a backing the cleaner of back glass joins.

The teams arriving from the screen wiper switch possess the highest priority and cancel the teams arriving from TsEKBS and the block of protection and switching.

Frequency of the movement of brushes of a cleaner of back glass depends on the speed of the movement of the car.

If TsEBKS does not receive the operating signal from the understeering switch, the small speed of work of a screen wiper automatically joins.

TsEKBS has special configurations for ensuring function of cleaning and washing of glasses.

Fig. 7.102. Flowchart of work of cleaners and washers of glasses: 1 – PDU under a steering wheel; 2 – sensor of a rain and illumination; 3 – the operating influence of the driver; 4 – block of diodes and switch; 5 – TsEKBS; 6 – wire communication; 7 – multiplex communication channel; 8 – information on inclusion of a backing and on car speed; 9 – block of protection and switching; 10 – pump of a washer of wind and back glasses; 11 – electric motor of a cleaner of back glass; 12 – electric motor of screenwash