Abstract: The disclosure relates to a drive train for a mixer drum, wherein the drive train comprises a generator which outputs a first alternating voltage to a first converter. The first converter is connected to a high-voltage direct voltage network. A second converter is also provided which is connected to the high-voltage direct voltage network and which supplies an electric motor with a second alternating voltage in order to drive the mixer drum. The drive train also comprises a high-voltage battery which is connected to the high-voltage direct voltage network. Finally, a control unit is also provided which is connected to the first and second power converters or the battery and thus controls a flow of energy via the high-voltage direct voltage network.

Abstract: A method for interlinking regulation and/or control functions for a motor vehicle, the communication structure of the control or regulation functions is defined by way of graphs containing nodes and directed gridlines, the nodes of the graph representing control or regulation functions and its directed gridlines representing defined communication paths of the control or regulation functions.

Abstract: A method for interlinking regulation and/or control functions for a motor vehicle, the communication structure of the control or regulation functions is defined by way of graphs containing nodes and directed gridlines, the nodes of the graph representing control or regulation functions and its directed gridlines representing defined communication paths of the control or regulation functions.

Abstract: In the process according to the invention for predetermining the ratio of a continuously variable transmission (5), a dynamic driving range is generated. The actual, minimum and maximum acceleration (a_akt, a_min, a_max) is calculated. Further detected is the driver's wish to accelerate or to decelerate (a_fwu) and an acceleration (a_vorg) is determined. Also calculated is a change of ratio per time unit of the continuously variable transmission (iV_pkt), which is guided by the engine speed of rotation during adjustment of the continuously variable transmission (5).

Abstract: The invention relates to a method of adjusting the transmission ratio of a continuously variable gear. The position of a current operating point (B_akt) in a predetermined driving range is constantly adjusted in accordance with the driving situation. The position of the operating point is also determined by range boundaries (UG, OG) which can be varied in accordance with the driving resistance and the driver's manner of driving. The method is characterized in that it simplifies development and application.

Abstract: The invention concerns a control system for shifting gears in an automatic shift transmission (3) by using fuzzy logic methods. Vehicle parameters form input variables (8) that are continuously detected by appropriate means (9). These input variables are further processed in downstream functional blocks (11, 12, 13, 14, 15, 16 and 17). Gearshifting points that ensure an economical driving are determined in the functional block (11) according to fuzzy logic methods. Besides a set of basic fuzzy logic generating rules, additional rules are used to improve driving. For that purpose, the input quantity "desired performance" is taken into consideration in both sets of rules. The desired performance may be a desired acceleration or a desired deceleration. A closed regulation circuit is formed by converting the fictitious quantity desired performance and the quantity driving manner to a physical quantity.

Abstract: The invention concerns a gear-change control systems (10) for an automatic transmission (3). Input variables, derived from a driver-vehicle system, are established. Output variables are established by fuzzy logic methods and used to determine a gear-change ratio. A fuzzy logic module, which imitates the operating method of a logical flip-flop and additionally permits continuous intermediate values, is used to consider driving states brought about by different situations.

Abstract: The invention concerns a control system (10) for changing automatic gears (3) that operates according to fuzzy logic methods. All the fuzzy-production rules are divided into at least three sections: a set of basic rules to determine the gear-changing point in a consumption-oriented driving style, a set of adaptation rules to modify the set of basic rules depending on a current driving style and an identification set of rules for classifying the driver according to his/her driving style. By way of a supplementary set of adaptation rules the set of basic rules can be additionally modified according to a current driving condition. Individual function blocks (11 to 15) operate preferably according to the same inference mechanism. Gamma operators are used in order to approximate as closely as possible human behavior. A process is proposed for generating membership functions to determine a running condition by fuzzy-production rules.