Page 38 - SAEINDIA Magazine December 2020

SPECIAL

Feature

Types of exhaust-gas sensors

To meet the needs of a reliable analysis of the exhaust-gas composition, the basis of exhaust-gas treatment, vehicles
must be equipped with different sensors known to be installed in the exhaust duct. The sensors in turn are integrated
into the onboard diagnostic system. Bosch offers five types of exhaust-gas sensors.

Nitrogen-oxide sensors SCR inturn to reduce NOx thus making them an important
aftermarket inclusion.
Using a resilient and heat-resistant ceramic sensor
element, the amount of nitrogen oxide (NOx), Exhaust-gas temperature sensors
downstream of the Selective Catalytic Reduction (SCR) The exhaust-gas
catalytic converter is measured. In some engines, temperature sensors can be
the NOx sensors are installed across locations
included upstream of within the exhaust duct of
the catalytic converter. diesel and gasoline engines.
The sensors control The sensors measure the
the amount of AdBlue temperature of exhaust
injected into the gases. An electric voltage
catalytic converter for signal is sent to the Engine Control Unit (ECU). In diesel

the combustion process carbon neutral. In a time of more efficient, more flexible, and sustainable. Featuring
crisis, opined Denner, it would be a good proposition to the latest in Industry 4.0 solutions and carbon-neutral
offset such renewable synthetic fuels against the fleet technology, it was built
consumption over-tightening the CO2 rules on the whole. to boost competitiveness
and meet the rising
3R approach
demand identified in the
In FY2020, Bosch limited made a provision of a 717 local market according to
crores towards a 3R approach of restructuring, reskilling, Denner. The Bidadi plant
and redeployment initiatives. In line with the company’s was built to act as a local
efforts to capitalise on the inherent opportunities of hub for the company’s
mobility-related projects. Amounting to a 399 crores, powertrain solutions
the total investments by Bosch are attributed to the and for the manufacture
expansion of the Bidadi plant and Adugodi campus. of common rail single
The Bidadi plant inaugurated on July 17, 2020, is known cylinder pumps and high-
Soumitra Bhattacharya,
to be a step towards making Indian manufacturing pressure rails among other Managing Director, Bosch India.

36 DECEMBER 2020 MOBILITY ENGINEERING