Robert Boschgmbh

Nicole Weber

Jens-Werner Falkenstein

Stefan Tumback

Dieter Hoetzer

Jochen Fassnacht

Manfred Schmitt

Christof Ott

Steffen Schumacher

Ulrich Foerch

Thomas Winter

Kay Hindorf

Lutz Rauchfuss

Martin Johannaber

Juergen Hessenauer

Oliver Schell

Henrick Brandes

Marcus Schulz

In a method for operating a fluid valve for controlling or regulating a fluid, having at least one movable valve component is displaceable with the aid of at least one electrical actuating signal which contains at least one first actuating signal portion which causes an oscillating valve motion of the valve component. Pressure oscillations generated in the fluid due to the oscillating valve motion are detected, and are used for regulation of the oscillating valve motion caused by the first actuating signal portion.

Method for operating a fluid valve via an oscillating valve motion

Method for operating a hybrid drive, in particular a parallel hybrid drive, of a vehicle. The parallel hybrid drive includes an internal combustion engine and at least one electric drive, at least one energy storage device, and a vehicle transmission. During deceleration phases in which a torque required on the transmission input side is present, the internal combustion engine is operated either in drag mode or at a minimum drive torque.

Braking strategy for a hybrid drive of a vehicle

A motor vehicle having a hybrid drive and a method for idle-speed control of a hybrid drive of a motor vehicle are provided. The hybrid drive includes an internal combustion engine having an engine management system, and at least one speed-controlled electric machine which is coupled to a drive shaft of the internal combustion engine during idling. During idling, the internal combustion engine is controlled by the engine management system in open or closed loop as a function of power demands of an electrical system of the motor vehicle.

Motor vehicle comprising a hybrid drive and method for controlling the idle speed of a hybrid drive of a motor vehicle

A method for regulating an electromechanically power-splitting hybrid drive system of a motor vehicle, having an internal combustion engine and two electric motors that are coupled by way of a transmission, as well as an electromechanically power-splitting hybrid drive system for a motor vehicle. It is proposed that, based on coupling conditions of the transmission, respective target rotation speeds and target torques be calculated for the internal combustion engine and the two electric motors; that the respective target rotation speeds be compared with corresponding actual rotation speeds of the internal combustion engine and of the electric motors; and that in the case of a system deviation between one of the actual rotation speeds and the corresponding target rotation speed, one or more additional torques be calculated on the basis of the system deviation and be taken into account, in addition to the target torque or torques calculated by the control system, in controlling the torque of the internal combustion engine and of the two electric motors.

Regulating strategy for electromechanically power-branching hybrid drives

Growing community of inventors

Schwieberdingen, Germany

Nicole Weber