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Bosch Showcases Expertise, Breadth of Technologies at 2010 SAE Commercial Vehicle Engineering Congress

- Diesel systems continues to achieve new levels of injection pressure – for some models 2,500 bar in 2012

- Emissions division develops components to meet new emissions standards

- Bosch Engineering Group provides a wide range of products, systematic support, extensive expertise in engine management systems

- Bosch Rexroth’s hydrostatic regenerative braking system cuts fuel consumption, reduces brake wear

FARMINGTON HILLS, Mich. – Bosch will be displaying its innovative commercial vehicle technologies at the 2010 Society of Automotive Engineers’ (SAE) Commercial Vehicle Engineering Congress (COMVEC) Oct. 5-6 at the Donald E. Stephens Convention Center in Rosemont, Ill. On Oct. 6, Kyle W. Williams, director, automotive systems integration, Robert Bosch LLC, will participate in the electronics executive panel discussion on managing rapid electronics growth and complexity in commercial vehicles. Bosch technologies available to the global commercial vehicle industry will be on display in Booth 507; Bosch Rexroth’s demonstration vehicle will be located in Booth 813.

Diesel systems achieve new levels of injection
Bosch’s diesel technology is as clean as it is economical. The common rail system, which features a high-pressure pump and rail, injector and control unit, offers an 8,000-hour service life, enables Tier 4 emissions regulation compliance and is highly efficient, even at low engines speeds. The company is achieving new levels of in-jection pressure. For some models, Bosch will be offering 2,500 bar in 2012. That will not only help lower consumption directly, but also increase power density, which in turn will make smaller engines with higher charging capacity possible. Bosch will be developing the necessary turbochargers through its joint venture, Bosch Mahle Turbo Systems.

Additionally, the Denoxtronic 2.2 metering system developed by Bosch works to-gether with an SCR (selective catalytic reduction) catalytic converter to lower nitro-gen-oxide emissions by up to 95 percent.

Using data from the engine electronics, such as the readings for engine speed and operating temperature, the Denoxtronic metering module injects just the right amount of AdBlue, a urea-water solution, into the exhaust gas flow. This gives rise to ammonia, which reacts with the nitrogen oxides in the SCR catalytic converter to produce non-toxic nitrogen and water. When SCR exhaust-gas treatment is used, CO2 emissions and fuel consumption can be lowered by roughly 3 percent.

Ultrasonic flow meter enables emissions compliance, increases efficiency
With diesel engines, the injected fuel quantity must be matched exactly to the cylinders’ air charge at every operation point to reach maximum efficiency with minimal emissions. This calls for precise metering of the air mass filling the combustion chamber. Bosch’s ultrasonic flow meter (UFM), a robust air-mass measuring system for diesel engines, can be mounted after the air cooler or close to the engine. The ultrasonic sensor is robust against contamination, which makes it particularly suitable for heavy-duty and off-highway diesel systems. Additionally, the ultrasonic measuring technology enables compliance with future emission regulations for heavy-duty and off-highway diesel systems.

Emissions systems help meet stricter emission standards
Off-highway vehicles, just like other vehicles, will be subject to stricter emission limits in the years to come. Bosch Emission Systems, a joint venture between Bosch, Deutz and Eberspächer, applies appropriate packages for exhaust-gas treatment, offering specific solutions for very specific vehicles.

The emissions product range includes diesel particulate filters, diesel oxidation catalysts, SCR catalytic converters and the associated tubing, urea metering systems, sensors, AdBlue tanks, and all the additional components needed for a complete exhaust-gas treatment system. Development is currently in progress for a burner system that has an integrated air pump and can regenerate particulate filters regardless of load or engine speed. Series production will begin in late 2011.

Bosch engineering ensures low emissions, reduced fuel consumption, high performance
Bosch Engineering Group offers tailor-made engineering services for commercial vehicles and off-highway applications, and does not base its services off the volume of the project involved. Its services, which cover everything from the design phase to series production, are focused on developing specific software for engine management, safety systems and comfort systems, as well as for integrating them electrically and electronically.

Bosch Engineering specialists draw on tried-and-true Bosch large-scale series production technology for commercial vehicles. They adapt this technology to the individual needs of specific vehicles and target markets and ensure low emissions, reduced fuel consumption and high performance, with target parameters weighted based on customer preferences. Bosch’s modern testing facilities also enable them to perform both functional testing and exhaust-gas and emissions testing for all governmental emissions regulations worldwide.

Bosch Rexroth cuts fuel consumption, reduces brake wear
Bosch’s subsidiary, Bosch Rexroth offers a hydrostatic regenerative braking (HRB) system that can cut diesel consumption by up to 25 percent in stop-and-go driving typical of delivery and refuse trucks, and can simultaneously reduce brake wear by up to 50 percent.

HRB not only protects the environment and reduces operating costs, it also pays off economically for cities and municipalities. In May 2010, the company announced that its HRB parallel hydraulic hybrid system is being used for the first time in a compressed natural gas (CNG)-powered refuse truck by the New York City Department of Sanitation (DSNY) in a 9- to 12-month in-field evaluation.

The Bosch Group is a leading global supplier of technology and services. In the areas of automotive and industrial technology, consumer goods, and building technology, some 275,000 associates generated sales of $53 billion (38.2 billion euros) in fiscal 2009. The Bosch Group comprises Robert Bosch GmbH and its more than 300 subsidiaries and regional companies in over 60 countries. If its sales and service partners are included, then Bosch is repre¬sented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for growth. Each year, Bosch spends more than $5 billion (3.5 billion euros) for research and development, and applies for some 3,800 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both innovative and beneficial.

In the U.S., Canada and Mexico, the Bosch Group manufactures and markets automotive original equipment and aftermarket products, industrial drives and control technology, power tools, security and communication systems, packaging technology, thermotechnology, household appliances, solar energy and healthcare products. Having established a regional presence in 1906, Bosch employs over 20,000 associates in more than 70 locations, with reported sales of $7.3 billion in fiscal 2009.

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Bosch at SAE COMVEC - October 2010


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