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APOLLO0 pages
APOLLO, the advanced, cost-effective speed
sensor for fast passenger car turbochargers
APOLLO the advanced, cost-effective speed sensor for fast
passenger car turbochargers
Downsizing of engines and minimizing the fuel consumption is
the challenge of today’s engine development. Whilst turbochargers are used in nearly 100% of all new developments of diesel
engines, the turbocharger for petrol driven cars is still considered a premium feature. However the trend shows that the next
generation of petrol engines will also profit from the extra boost
of turbocharging. The benefits of an accurate, fast and reliable
speed measurement for turbochargers are well known in diesel
engine markets – and now acknowledged by petrol engine markets as well.
APOLLO – specifically designed for passenger car market – with
advanced capability with less cost
Many engine designers have opted for the benefits of turbocharger
speed measurement in both diesel and petrol driven units.
The only challenges for the passenger car market, so far, have
been the size of a speed sensor and its cost. Drawn from
experience of being the key supplier for most of the turbocharger
manufacturers and having over 6 million turbocharger sensors in
traffic, JAQUET’s new APOLLO turbocharger sensor is specifically
designed for the personal car market. It eliminates both of the
obstacles – the sensor is extremely small, easily adaptable and
economically priced.
Speed measurement – more efficiency and protection
The key advantage of speed measurement is the regulation of the
airflow in the engine which can be handled much faster and with
more accuracy – enabling a better use of the given compressor
map of a turbocharger. It is also the key element for an effective
protection of the turbocharger against any catastrophic failures
caused by overspeed conditions. Adjustments needed by the air
density changes of different altitudes also benefit from speed
measurement – as well as adaptive support of the quick changing driving conditions in today’s traffic.
APOLLO means more capability with less cost
The advanced features are based on a high temperature ASIC,
developed by JAQUET for increasing underhood temperatures.
The ASIC is built directly into the sensor body and provides performances and features unseen in this category of sensor elements;
diagnostic functions, configuration capabilities, on board
frequency division and a possibility to detect both aluminium and
titanium blades. All of this is combined with a mechanical design
which allows an easy assembly in the turbocharger. Depending on
the specific application requirements and preference of a
customer, an integral high temperature connector or a short cable
with a standard connector can be selected.
Speed as a source for diagnostic information
The prospect of utilizing speed measurement to gain diagnostic
information is an exciting thought. The idea is based on
gathering information on the turbocharger acceleration pattern
caused by the engine exhaust boosts. Acceleration of the turbo
takes place every time when a cylinder has fired and exhaust
gases are pushed out. Between boosts a fast passenger car turbocharger easily spins 20 to 40 revolutions. This is enough time
for a speed sensor to detect any missing or reduced acceleration
impulse of the engine – therefore providing direct information on
the engine performance itself.
Would you like to test APOLLO?
Sample sensors, with the final ASIC version, are now available at
JAQUET to support ECU development and testing.
Get your sample units at only 85¤ per unit piece.
To order, please fill in the APOLLO order form on the back.
For more information, samples and customization possibilities
please do not hesitate to contact us.
We are pleased to help you drive for maximum efficiency.
IN CHARGE OF SPEED
JAQUET TECHNOLOGY GROUP • Thannerstrasse 15 • CH-4009 Basel • Switzerland
Tel +41 61 306 8822 • Fax +41 61 306 8818 • info@jaquet.com • www.jaquet.com
