Not a drop
of water wasted with the Bosch Jet Wiper, Wiper arm to be standard equipment in new
Volvo XC90
A clear field of vision is essential for
safe driving. And whenever this field of vision is impaired by dirt, the Bosch Jet Wiper gets to work. As part of a
Bosch system featuring a wiper drive and Aerotwin wiper blades, the innovative
wiper arm will now be standard equipment in the new Volvo XC90. The Jet Wiper
is far superior to conventional windshield wipers. The reason for this is its
smart control, combined with spray nozzles integrated in the wiper arm. These
nozzles distribute the washer fluid evenly, thus ensuring that the windshield is
cleaned over the entire length of the wiper blade. “The Jet Wiper deploys the
right amount of washer fluid, precisely where it is needed,” says Bernhard
Straub, president of the Bosch Electrical Drives division. The benefits of this
system are that drivers’ vision is not impaired by spray mist, and consumption
of washer fluid is reduced by as much as 50 percent.
Not a drop of washer fluid is wasted when
using the Bosch Jet Wiper. This is also due to the reversing wiper drive, also
made by Bosch. This drive alternates the rotation of the motor between the
wiper arms’ two final positions – parked position and A-pillar. Its integrated electronics means that it can detect the
Jet Wiper’s position on the windshield at all times. To achieve the best cleaning
effect, spraying is done only when the wiper arm is moving upward. In this way,
the washer liquid is immediately picked up by the two Aerotwin wiper blades and
distributed over the entire windshield. “The Bosch system thus provides optimum
cleaning along the entire wiper blade,” Straub says. This also ensures a clear
field of vision for a video sensor used for driver assistance systems, which is
normally positioned at the same height as the rear-view mirror.
Bosch Aerotwin: best wiper blades in the
market
Most importantly, the end result of
cleaning with the Jet Wiper is independent of driving speed. Conventional wiper
systems spray the washer fluid from nozzle elements on the engine hood, and
these elements are designed for a certain speed. As speed increases, the
airflow diverts the spray, which means less washer fluid is sprayed on the area
to be cleaned, resulting in a poor cleaning of the windshield. With the Jet
Wiper, there is practically no effect from the airflow since the nozzle
elements are mounted directly along the wiper arm. And that’s not all: the
spray nozzles are fitted with tiny valves that open when drivers activate the
wind-shield-washing function and close as soon as spraying has finished. This
means there are no subsequent drips, and the wiper blades only have to wipe
once. In winter, the nozzles are heated, making them ready for use even in the
worst of weather.
In opting for the Bosch Aerotwin, Volvo is also choosing what are currently the best wiper blades in the market. This was recently confirmed by a test carried out by ADAC, the German automobile club. Out of eight wiper blades tested, the joint-free Bosch Aerotwin was the only one to receive top marks. “The secret of our wiper blades is their twin technology,” Straub says. At the cleaning lip, the rubber is harder, and thus hard-wearing. By contrast, the back of the Aerotwin is more flexible, facilitating the reverse movement of the blade when the wiper arm switches from downward to upward motion. This means that the Aerotwin is practically silent in operation. And if a wiper blade should show signs of wear and tear, it can be quickly, easily, and inexpensively replaced, thanks to the Jet Wiper’s sophisticated clip system.
Related links:
Bosch Aerotwin is clear winner of ADAC windshield-wiper test
http://bit.ly/1Barh7J
http://bit.ly/1Barh7J
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