Annual Report 2012 - Knorr-Bremse AG.

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68 Report ProduCts // Commercial vehicle systems SafetyDirect monitors data coming from safety systems to display driver performance information over time. Using the AutoVue LDW system to gather data from the vehicle, the SafetyDirect web portal allows fleet owners the opportunity to analyze safety information about their vehicles that is wirelessly transmitted – in real time – via telematics systems already installed on the vehicles. SafetyDirect can provide an immediate warning through email to fleet operators if their drivers are braking too hard or traveling too fast. The wireless data is transmitted to a fleet’s back office, eliminating the need for technicians to manually extract it from the vehicles. The video and other trending data is delivered by SafetyDirect in a fraction of the time. This helps fleet managers make key decisions, such as identifying risky driver behavior and providing targeted training for drivers. New steering brake for truck applications prevents understeer Classic three-axle construction site vehicles often suffer from understeer when cornering. Particularly in the slippery conditions encountered in building excavations or quarries, even a modern vehicle can be difficult to maneuver. The new steering brake function by Knorr-Bremse is intended to help the driver in such situations. Integrated into the EBS electronic braking system, it reduces the cornering radius by applying the brake on the inside rear wheels. The system functions a bit like the split brake pedal that is often found on agricultural vehicles. In the case of the steering brake, the brake cylinder on the inside rear wheels receives a higher pressure than the outside wheels, effectively countering the characteristic understeer that can be experienced on slippery surfaces. The degree of the difference in brake pressure between the two ends of the axle depends on the steering wheel angle – the further the driver turns the wheel, the more firmly the brake is applied on the inside wheel. To prevent tire scuffing the pressure is automatically reduced when the slip limit is reached.
Report 69 Differential lock for commercial vehicles assists truck drivers Drivers sometimes find it difficult to decide when to activate the differential lock and when it is better not to. The result is that it is often switched on too late, when the vehicle has already stopped moving or one wheel is already spinning so much that the differential lock no longer engages. The so-called Differential Lock Control system developed by Knorr-Bremse helps the driver by activating the lock on solo and tandem rear axles and automatically deactivating it again as soon as it is no longer required. If one or more wheels start to spin, the system applies the brake to the spinning wheel(s) to synchronize the axle concerned, and then automatically activates the differential lock. To speed up the process, ensure rapid activation and minimize wear, the drive train may also be briefly disengaged. New ST7-430 trailer brake boosts efficiency in trailers too The new ST7-430 brake literally lightens the load for trailers. This successor to the successful SK7 is one of the lightest two-piston disc brakes for 22.5-inch wheels on the market. The ST7-430 is designed for 9-tonne trailer axles and thanks to its optimized disc and caliper weighs in at around four and a half kilograms less than its predecessor. This means that for a classical trailer application the unladen weight is reduced by 27 kg. The fact that this enables the load volume to be increased is, if you take a mineral oil tanker as an example, a strong argument for purchasing the system. And if the full load capacity is not used, the 27 kg saved will certainly reduce fuel consumption. Thus either way, trailer efficiency can be increased. During 2012 prototype testing was completed and preparations made for customer field testing. Compressor development for hybrid applications There are still many unanswered questions about how truck hybrid applications can be used effectively in the medium and long term, but one thing is clear: sooner or later such modern drive systems are going to be found in this segment. It is also clear that the compressors used to generate air for the braking system will no longer be powered by the vehicle’s combustion engine, as – depending on the type of system involved – it temporarily switches off during hybrid operation. And, of course in the case of fully electric vehicles, the combustion engine will cease to exist completely. Hence the need to look to the future and develop an electrically-powered compressor. The new electrically-powered compressor is designed for maximum flexibility and can be installed in a wide range of hybrid vehicles. During the year under review, Knorr-Bremse started to work on a prototype electric compressor that is also oil-free and air-cooled, as current compressors are not just mechanically linked to the vehicle’s combustion engine but also share its oil- and water-cooling system. The new compressor is completely separate from the drive system and can be installed anywhere in the vehicle as a stand-alone, battery-powered component. Knorr-Bremse sees the main use of hybrid drive systems as being on urban buses and local distribution trucks, so the new battery has been designed to be highly flexible and capable of installation in a wide variety of different vehicle types. At the same time the emphasis during the development stage was on noise and vibration reduction. Volume production launched of new slack adjusters for disc brakes Slack adjusters are essential elements of any disc brake, as they ensure that the running clearance between the brake pads and disc remains constant, however much wear the pads are exposed to. During 2012 Knorr-Bremse successfully launched volume production of its new N2G slack adjuster. These will initially be installed on semi-trailer tractor units, and in 2013 will be rolled out for the entire range of disc brake applications including truck trailers.
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Knorr-Bremse Group Annual Report 20
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Main Majority-owned Subsidiaries of
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Supervisory Board 3 Overview 04 06
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2012 at a Glance 5 January Rolf Hä
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Executive Board 7 Klaus Deller Dr.
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Supervisory Board 9 Wolfgang Hubert
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Supervisory Board 11 and the compan
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14 The State and Development of Kno
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16 Development of the Knorr-Bremse
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Page 22 and 23: 20 Overall assessment of the econom
Page 24 and 25: 22 Regional developments by divisio
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Page 28 and 29: 26 to falling exports but also to s
Page 30 and 31: 28 Research and development As a te
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Page 36 and 37: 34 Outlook In the next two years, K
Page 39 and 40: Report Despite a volatile business
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Page 43 and 44: Report 41 partners and customers as
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Page 48 and 49: Itupeva, Brazil Westminster, USA
Page 50 and 51: 48 Report Site-specific projects //
Page 59: PRODUCTS TRADE FAIRS Technological
Page 62 and 63: 60 Report ProduCts // Rail vehicle
Page 68 and 69: 66 Report ProduCts // Commercial ve
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Page 75 and 76: Report 73 PRODUCTS TRADE FAIRS Trad
Page 77 and 78: Report 75 Dr. Dieter Wilhelm, Membe
Page 79 and 80: Report 77 Heinz Hermann Thiele, own
Page 81 and 82: Report 79 Expo Ferroviaria 2012, Tu
Page 83: Report 81 tive service strategies -
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Page 106 and 107: 104 Report External ratings
Page 109: MARKET SUCCESSES Passion “We are
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118 Report Market successes // Rail
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120 Report Market successes // Rail
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122 Report Market successes // Comm
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Corporate Responsibility Employees
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134 Report Corporate Responsibility
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Report 141 Corporate Responsibility
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Report 143 Staffing levels also dec
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Report 145 Knorr-Bremse certified i
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Report 147 Leadership excellence Kn
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150 Notes to the Consolidated Finan
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166 • Commodity contracts are use
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168 SEGMENT REPORT Segment Report i
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170 STATEMENT OF CHANGES IN GROUP E
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172 CONSOLIDATED BALANCE SHEET Cons
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Contact Knorr-Bremse AG Moosacher S
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