Steer by Brake: Simplifying the steering operation

In order to simplify the steering operation in trailers with more than three axles used in heavy and abnormal goods transportation, Kässbohrer in partnership with Knorr-Bremse has developed the Steer by Brake (SBB) System to reduce the operational complexity for efficiency and safety by eliminating the need for self-steering axles, and therefore reducing costs.

Trailers with more than three axles for heavy and abnormal goods transportation are equipped with self-steering axles, to fulfil the turning radius requirements as defined in the ECE-Regulation 79 and legislations according to the country of registration. However, the use of self-steering axles brings a complex steering operation and higher material costs.

Kässbohrer has developed the Steer By Brake (SBB) System to reduce the operational complexity for higher efficiency and safety by eliminating the need for self-steering axles.

Kässbohrer engineered the Steer by Brake technology in partnership with Knorr-Bremse, to eliminate the complex self-steering operation while fulfilling the turning radius requirements without self-steering axles. Furthermore, because the SBB is built on the existing trailer electronic brake system (TEBS) architecture, the use of the SBB reduces the total cost of ownership, in terms of initial investment, tire wear and maintenance.

Kässbohrer engineers first initiated the concept development phase to define project objectives, which is followed by the development of the breaking system infrastructure by Knorr Bremse. The Kässbohrer R&D team then applied the system into the vehicle. Two parties ran the test phase together.

The main challenge in the project was to keep tire wear as low as possible. Since the SBB idea simply suggests that the steering operation can be carried out by selective breaking of rear wheels individually, the first expected result was increased tire wear as a consequence of higher usage of breaks. Kässbohrer and Knorr Bremse engineers overcame this challenge by optimizing the system architecture after extensive tests.


The Steer by Brake (SBB) system replaces the self-steering axle(s) with standard (non-steering/rigid) axle(s).  The system builds on the existing TEBS architecture to provide control over the steering of the trailer. Consequently, during cornering, the air suspension of the axles is controlled by the trailer’s TEBS system. Furthermore, the system assists cornering by selectively breaking the inner rear wheel of the last axle, thus transferring the effective wheel base forward. Steer by Brake assists the cornering by allowing the rearmost axles to slip sideways through the corner.

The TEBS system automatically configures the suspension and braking systems to achieve the desired cornering radius when the trailer enters a tight turn at low speed.  As the axles are fixed, there is no need for the user to lock the axle for alignment while reversing as in the case of a self-steering system. There is also no need to lock the axles at high speed thus stability is maintained even in the case of a failure in the electrical system.


Digital Trailer Control to increase safety for curtainsider operators

The project was born with Kässbohrer engineers deciding to increase the safety of drivers and operators during the usage of mechanical controls of a curtainsider. As an innovation project, the main challenge was to revolutionize the very traditional manual control into a centralized digital control.

After the Kässbohrer R&D team first initiated the concept development phase to define project objectives, OTAM has developed the software needed for the electronic control system. The software then used by Kässbohrer in the application of the DTC unit into the curtainsider semi-trailer. The test phase was carried out by two parties.

DTC’s user-friendly interface accelerates the operations without compromising operator’s safety.  DTC has alternative user interfaces. “Touchscreen”, can be customized according to each customer demand according to standard equipment in his/her fleet, while comparable to smart key applications in the automotive industry, “Wireless Smart Key,” is also acts as an immobilizer, in addition to system controls.

The main value of DTC is minimizing occupational injury risks which generate a substantial cost in terms of healthcare, productivity and administrative costs. Furthermore, deteriorated quality of life of the injured and his/her family is the most important cost which requires the immediate attention. As European Agency for Safety and Health at Work suggests outdoor workplaces have to be arranged to avoid injury risks, DTC can be implemented as an accident prevention tool and assist the user for a safe ride.

Regarding operational and driving safety;

  • DTC eliminates the risk of unauthorized use of parking brake mechanism. According to pre-sets, parking brakes can only be activated on remote control unit by entering a password.
  • The electromechanical landing gear can be controlled from DTC from a safe distance. DTC will either set the parking brake automatically as soon as the landing gears are fully extracted, or warn the user until the landing gears has been fully extracted.
  • DTC will automatically check loads on the king pin and the axles and load distributions. If there is an overloading or a wrong distribution of loads between king pin and axles, DTC will prevent trailer to move or warn driver according to pre-sets.
  • DTC can set the bumper (Rear Underrun Protection) position – folded or unfolded. If user forgets to set the bumper, e.g. for driving purposes; DTC will set automatically the bumper for driving position, or warn the user for the risky situation.
  • DTC will warn the user for improper condition of customs security cable (TIR), which might need to be reworked (cut and weld).
  • DTC have additional blank ports which can used to control/monitor other digital functions of trailer e.g. according to status of door sensor (if exist), DTC can warn driver if the door is open.

Kässbohrer comes together with ESTA members in Istanbul

Kässbohrer came together with ESTA (The European Association of abnormal road transport and mobile cranes) member international logistics providers within the scope of ESTA’s annual meeting in a dinner on October 16 in Istanbul, co-organized with Turkish ESTA member company Hareket Proje Taşımacılığı ve Yük Mühendisliği.

Kässbohrer’s representatives in the dinner included Business Development Executive Board Member Iffet Türken, Marketing Coordinator Volkan Oflaz, Product Manager Eray Gül, while Hareket Proje Taşımacılığı ve Yük Mühendisliği is represented by company CEO Engin Kuzucu, Business Development Manager Abdullah Altunkum and other company representatives.

In the dinner, gathering together representatives from leading Turkish and international crane, project transportation and logistics providers, participants discussed issues regarding the sector, suggested solutions and evaluated innovations. Participants also formed business cooperation opportunities.

About ESTA:

Founded in 1976, The European Association of abnormal road transport and mobile cranes (ESTA) is the unique European arm for trade Associations, representing mobile cranes and access platform, rental companies and abnormal road transport companies.

Kässbohrer maxima curtainsider tested on Formula 1 Track

Kässbohrer participated in the truckEmotion in Monza, Italy on October 10-12, with a Maxima curtainsider, K.SCS X+, a non-tipping silo, K.SSL 35, a 3 axle low bed, K.SLA 3, and a coil transporter, K.SCC X+.

truckEmotion is intended to offer a new vision for the truck and trailer sector through seminars, workshops and roundtables, testing of vehicles and driving business meetings among the major players in the market.Kässbohrer’s Maxima Curtainsider, K.SCS X+, is also taken to test drives on Italy’s famous race track Autodromo Nazionale Monza, a month after the Formula 1 Italian Grand Prix.

Tırsan Solutions delivers 50.000th semi-trailer produced in the past 10 years

Tırsan Solutions, one of Europe’s leader in trailer solutions, delivered its 50,000th semi-trailer produced in the past 10 years on October 14, 2014 in Adapazarı, Turkey.

As the 50.000th semi-trailer was produced under Tırsan Treyler A.Ş., the delivery ceremony took place in Tırsan Solutions Adapazarı Plant, in Turkey.  In the ceremony, followed closely by the industrial press, the 50,000th vehicle is delivered to Gaziantep-based logistics provider Eyup Lojistik. Speaking at the ceremony, Çetin Nuhoğlu, the president of Tırsan Solutions addressed to the press and the Turkish Tırsan dealers:

“Today is a very special day for us. It’s the 37th year of Tırsan this year and I hope to celebrate our 40th year in 2017”.

“We have gathered here today for the delivery of the 50,000th vehicle we produced in the past 10 years. It’s been 20 years since our Adapazari plant has been established. In the first 10 years we produced 19,314 vehicles, while we produced 50,000 vehicles in the second 10 years, half of it having been produced in the past 3 years. By 2018, we will produce 20,000 vehicles a year. We made every plan to achieve it.”

A Perfect Match: Kässbohrer delivers two 90 m3 tipping silos to Logistik XXL

Manufacturer of Germany’s one of the first tipping silos with hydraulic tipping Kässbohrer has delivered two Kässbohrer SSK.90 Tipping Silos to German logistics service provider Logistik in XXL earlier this month. 

The delivery took place in Kässbohrer Facilitiy in Goch, with the participation of Volker Asche, the Executive Director of Logistik in XXL, Michael Conrad, Sales Manager of Austrian dealer Hochstaffl Nutzfahrzeuge GmbH and Cansu Dilmen, Country Manager of European Sales at Kässbohrer Fahrzeugwerke GmbH.Logistik in XXL is a logistics service provider, specialized in general logistics, including food and beverages, automotive, steel, heavy loads, bulk loads, containers and silo logistics. The cooperation between Kässbohrer and Logistik in XXL became possible as the specialization of Logistik in XXL in knowing of the demands of silo logistics matched perfectly with the engineering power and technical ability of Kässbohrer in producing tipping silos with volumes reaching up to 90m3.

Kässbohrer SSK 90 Tipping Silos carry a lightweight aluminum construction with one compartment, conically ending at rear, lifted by the power of the hydraulic tipping system comprising of a front telescopic piston with a tilt angle of about 45°.