Abstract: The invention relates to a locking unit for a first flap, a second flap and a carrier, comprising a locking element which can be housed in a displaceable manner on the first flap and which comprises a tappet, and a driveable actuation device which is used to displace the locking element. In a first position, said locking element couples the first flap to the second flap in order to form a unit, and in a second position, the first flap is released from the second flap, and in an intermediate position, the first flap and the second flap are fixed together in the carrier. An active connection between the tappet of the locking element and the actuation element can be formed in said intermediate position.

Abstract: In a method and a device for engine stop/engine start of hybrid vehicles, which includes an internal combustion engine and an electric machine which is coupled to the internal combustion engine and is selectively able to be operated regeneratively or motively, the engine speed can be detected and compared to a limit speed to initiate the stopping of the engine in a hybrid vehicle using an automatic start/stop mechanism, and if the engine speed drops to the threshold speed, the engine is stopped, the electric machine being switched over into the motive or the regenerative operation when the limit speed is reached; the electric machine assuming the limit speed, whereas the fuel supply of the internal combustion engine is shut down or remains shut down and the electric machine initiates the stopping of the internal combustion engine.

Abstract: A method controls an operation of a motor vehicle equipped with a hybrid drive unit having a combustion engine and at least one electric machine that can be selectively operated as a motor or as a generator. The electric machine, when in generator mode, charges an energy store and/or supplies power to a vehicle electrical system of the motor vehicle. In generator mode, the electric machine is operated in alternating intervals, while maintaining predefined boundary conditions. In a first interval, the electric machine is operated with a first high electrical power output that is higher than an actual power consumption of the vehicle electrical system of the motor vehicle. The electric machine is switched off in a second interval. This largely prevents the electric machine from approaching operating points under light load which have a low efficiency and achieves a fuel advantage in comparison to a continuous operating mode.

Abstract: A method is for controlling an overrun condition in a hybrid vehicle having a combustion engine and additionally at least one electric motor as well as an overrun fuel cutoff, which interrupts a fuel supply to the combustion engine when the vehicle is in an overrun condition and restores the fuel supply when the combustion engine reaches or falls below a restoring speed. At least in a combustion engine at operating temperature, the fuel supply is restored at a restoring speed of at most 200 min?1, e.g., at most 100 min?1 above an idling speed of the combustion engine. The restoring speed may be in the range of the idling speed or only slightly above the latter. The restoring speed is thus clearly lowered as compared to the usual restoring speeds and extends the overrun fuel cutoff phases and thus reduces fuel consumption.

Abstract: A method is for controlling the operation of an exhaust-gas sensor disposed in an exhaust duct of a motor vehicle and equipped with an internal or external sensor heating device, the motor vehicle including a combustion engine and an automatic switchoff, which causes an automatic switching off of the combustion engine when at least one stop condition is present.

Abstract: The invention relates to a locking unit for a first flap, a second flap and a carrier, comprising a locking element which can be housed in a displaceable manner on the first flap and which comprises a tappet, and a driveable actuation device which is used to displace the locking element. In a first position, said locking element couples the first flap to the second flap in order to form a unit, and in a second position, the first flap is released from the second flap, and in an intermediate position, the first flap and the second flap are fixed together in the carrier. An active connection between the tappet of the locking element and the actuation element can be formed in said intermediate position.

Abstract: The invention relates to a method for controlling an operation of a motor vehicle equipped with a hybrid drive unit (10), which comprises a combustion engine (12) and at least one electric machine (14) that can be selectively operated as a motor or as a generator. The electric machine (14), when in generator mode, charges an energy store (22) and/or supplies power to a vehicle electrical system (24) of the motor vehicle. The invention provides that in generator mode the electric machine (14) is operated in alternating intervals, while maintaining predefined boundary conditions, wherein: (a) in a first interval, the electric machine (14) is operated with a first high electrical power output that is higher than an actual power consumption of the vehicle electrical system (24) of the motor vehicle; and (b) is switched off in a second interval.

Abstract: The invention is directed to a method for controlling fuel injection in an internal combustion engine (10) having at least one electric machine (26), wherein a direct injection system (18) for direct injection of fuel into at least one combustion chamber (54) of the internal combustion engine (10) is associated with the internal combustion engine (10), the direct injection system (18) including a mechanically driven high-pressure fuel pump (22) for generating a fuel pressure in an accumulator volume (20) upstream of the at least one combustion chamber (54).

Abstract: A method is for controlling the operation of an exhaust-gas sensor disposed in an exhaust duct of a motor vehicle and equipped with an internal or external sensor heating device, the motor vehicle including a combustion engine and an automatic switchoff, which causes an automatic switching off of the combustion engine when at least one stop condition is present.

Abstract: A method for operating a hybrid motor vehicle having an internal combustion engine and at least one electric machine is provided. At least one of the electric machines supplies a varying torque to the internal combustion engine such that cyclic irregularities of the internal combustion engine during idling are reduced and, at the same time, the internal combustion engine is operated during idling with an ignition angle and a volumetric efficiency optimized for this operating state and without retarding the ignition angle for building up a torque reserve.

Abstract: A method for operating a hybrid motor vehicle having an internal combustion engine and at least one electric machine is provided. At least one of the electric machines supplies a varying torque to the internal combustion engine such that cyclic irregularities of the internal combustion engine during idling are reduced and, at the same time, the internal combustion engine is operated during idling with an ignition angle and a volumetric efficiency optimized for this operating state and without retarding the ignition angle for building up a torque reserve.

Abstract: The invention is directed to a method for controlling fuel injection in an internal combustion engine (10) having at least one electric machine (26), wherein a direct injection system (18) for direct injection of fuel into at least one combustion chamber (54) of the internal combustion engine (10) is associated with the internal combustion engine (10), the direct injection system (18) including a mechanically driven high-pressure fuel pump (22) for generating a fuel pressure in an accumulator volume (20) upstream of the at least one combustion chamber (54).

Abstract: A connection bolt (1) for repeated tightening beyond yield point which bolt (1) comprises a head (2) and a shank which shank is provided with a thread, whereby said head (2) of said connection bolt (1) is provided with at least one indication mark (9) at a fixed defined mutual angle position to at least one indication sign (10), which sign (10) is provided on the free shank (5) end relative to the axis (q—q) of the bolt (1) rotation. This system of marking allows to determine the damage of said bolt (1) exactly and to decide about further ability of said bolt (1) to be used next time without any risk of destruction or decrease in quality of a joint.