Date: 4 weeks ago   Category: Hi-Tech

Bosch electrifies semi-trailers


Bosch electrifies semi-trailers, thereby electrifying modern freight transportation. Bosch presented to

Within the international exhibition of commercial motor transport in Hanover the electrified axis for semi-trailers. The essence of the idea is in equipping semi-trailer axes with the electrical machine for obtaining advantage of their free rotation. With such equipment of an axis will be able to accumulate energy during braking and then to charge with it accumulators. Use of this technology for trailers refrigerators will allow to save up to 10 000 euros a year. According to the estimates of Bosch if the refrigeration unit works at the energy which is saved up by means of recuperative braking it will allow to save up to 9 000 l of fuel a year. Functions of the electric drive also cut fuel consumption. Any economy of fuel reduces emissions of carbon dioxide in the atmosphere. This technology also opens new opportunities for carriers which carry out delivery of goods in grocery stores. On the electrified trailers refrigerators delivery can be carried out early in the morning and late night, without worrying about noise which publishes the diesel refrigerator.

"Our decisions on electrification of trucks not only are economic, but also open new opportunities of electromobility in the sphere of freight transportation, - Dr. Markus Heine, the board member of Robert Bosch GmbH notes. - The electrified axis is an important step to automation of the parking of trailers on parkings of the logistic companies, for example. Integration of the power unit into an axis of the trailer means that it can move on the parking lot without use of the tractor".

System is available to use both in new trailers, and to modernization of existing. The potential demand for such systems is huge. Only in Europe annually register about a quarter of one million trailers with the allowed maximum weight more than 10 t. At the same time every fifth trailer is equipped with the refrigeration unit.

Unlike the experts working in many other projects for cargo vehicles for electrification of axes engineers of Bosch applied serial components to passenger vehicles. For example, the SMG180 electric motor is already used in hundreds of thousands of hybrid and electric vehicles worldwide, including the electric express minibus StreetScooter of the German post service. Unlike power plants of electric vehicles, the engine of the electrified axis is connected in work only if necessary. For example, during the movement on descent or braking. Thanks to the system of recovery during braking energy is not spent any more, and remains in the high-voltage battery. This energy can be used for creation of additional draft at start-off on rise or for operation of the refrigeration unit. At the expense of it it is possible to save a lot of fuel. this demanded system has

also other advantage. As recovery of energy or power supply of the electric motor at

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