Abstract:
A method of braking a vehicle (15) which includes ground engaging wheels (16-19), and a braking system (28) with ABS capability and including an operator actuated brake control (31), the ABS becoming operative in response to the operator actuating the brake control (31), and upon the braking system (28) sensing the slippage or impending slippage of at least one of the ground wheels (16-19) relative to the ground, to vary the braking force applied to the at least one of the wheels (16-19) between, in alternative periods, an applied state in which the braking force is applied, and a released state in which the braking force is released, and characterised in that the method includes applying torque to assist acceleration of the wheel (16-19) at least during periods in which the braking force is released by the ABS.
Abstract:
The invention relates to a method and a device for controlling the drive nit of a vehicle. In a first step, input variables, which are independent of the drive unit, are used to form a first input variable. In a second step, a second input variable influencing at least one regulation variable of the drive unit is formed on the basis of said first input variable and at least one motor-specific input variable. The invention also describes an interface between the motor-independent and the motor-specific part of the motor control.
Abstract:
A method of controlling a drive train of a motor vehicle having an engine (10), wheels (13), a wheel slip control system (15), and an automatic transmission (12) having a clutch (11), the clutch capable of being opened and closed, wherein the automatic transmission (12) is controlled based upon signals generated by the wheel slip control system (15).
Abstract:
The description relates to a wheel slip regulating system (ABS and/or ASR and/or MSR). According to the invention, when a bend is detected the regulating system is set to different permissible degrees of slip so that a yawing moment is produced in the opposite direction to that produced by the inclination of the vehicle to over or understeer.
Abstract:
An engine brake control device comprising a fuel cutting unit, slippage detecting unit, and a control unit, whereby, when an engine braking operation is underway, the fuel cutting unit stops the supply of fuel to the engine, but if a slippage of the driven wheels of the vehicle is detected by the slippage detecting unit, while the fuel cutting operation is being executed by the fuel supply cutting unit, the control units prohibits the operation of the fuel supply cutting unit, and therefore, when a slippage of the driven wheels is caused by an engine braking operation, fuel is fed into the engine and the slippage of the driven wheel is prevented.
Abstract:
The present invention relates to a method for reducing a mechanical load on at least one component of the drive train of a motor vehicle (10) having at least two wheels, of which at least one is a drive wheel (12a, 12b), wherein the motor vehicle (10) comprises an anti-lock braking system (16), and at least one electrical machine (18) which, in order to drive exactly one drive wheel (12a, 12b) of the motor vehicle (10), is coupled to said drive wheel, wherein a respective friction brake (14a, 14b) is assigned to each of at least two wheels of the motor vehicle (10), said method comprising the following steps: a) provision of the anti-lock braking system (16) in such a manner that it can act individually for each wheel on the friction brakes (14a, 14b) for the wheels of the motor vehicle (10) (step 100); b) during an actuation of the anti-lock braking system (16) (step 110): b1) determining the mechanical load on at least one articulated shaft (20a, 20b) connecting an electrical machine (18a, 18b) and an associated drive wheel (12a, 12b) (step 120); b2) activating the electrical machine (18a, 18b) assigned to the drive wheel (12a, 12b) in such a manner that the mechanical load is counteracted (step 140). The invention additionally relates to a corresponding motor vehicle.
Abstract:
Ein Verfahren zur Erkennung und Korrektur der Fahrzeugreferenzgeschwindigkeit, insbesondere bei deren Abseilung durch Schlepp- und/oder Rekuperationsmoment, eines Kraftfahrzeuges, insbesondere eines Allradfahrzeuges, mit einem Motor (110) und einem Motorsteuergerät (120), wobei mit Hilfe eines Sensors die Längsbeschleunigung des Kraftfahrzeuges gemessen wird und mit Hilfe von Raddrehzahlsensoren (146) die Radbeschleunigungen bestimmt werden, soll einerseits eine extrem zuverlässige Bestimmung der Fahrzeugreferenzgeschwindigkeit sowie die Einleitung von Korrekturmaßnahmen erlauben, sobald ein Abseilen erkannt wurde, und andererseits auf gewöhnlich verbaute Komponenten und Steuer- und Regelungsroutinen zurückgreifen. Dazu werden die folgenden Schritte durchgeführt : Filterung der Radbeschleunigungen, Filterung der Längsbeschleunigung, Bildung einer korrigierten Längsbeschleunigung durch Beaufschlagung der gefilterten Längsbeschleunigung mit einem Sicherheitsoffset und mit einem Korrekturoffset, zeitliche Integration der Differenz zwischen der korrigierten Längsbeschleunigung und der jeweiligen Radbeschleunigung, wobei bei Überschreiten eines Schwellenwertes des Absolutwertes der Differenz während eines vorgegebenen Zeitintervalls bei einer vorgegebenen Anzahl der Räder Schritte zur Korrektur eingeleitet werden.
Abstract:
The invention relates to a method for distributing driving or towing torque to the driven wheels (2a, 2b) of a vehicle (1). To reduce the tendency of the vehicle to understeer or oversteer and to improve the agility of the vehicle when the vehicle (1) is cornering, the driving or towing torque is distributed to the driven wheels (2a, 2b) in such a way that a differential driving torque (MD) or towing torque that counteracts the tendency of the vehicle (1) to understeer or oversteer is produced, the magnitude of the differential driving torque (MD) or towing torque being dependent on the magnitude of the wheel contact forces (FN) acting on the wheels (2a, 2b) or a modification of said forces, or on the magnitude of a physical variable that describes the wheel contact forces or a modification of said variable.
Abstract:
Die Erfindung betrifft ein Verfahren zum Stabilisieren eines Kraftfahrzeuges während und nach Lastwechselvorgängen, wobei ein Lastwechselvorgang ermittelt wird und eine Steuervorrichtung eine das Fahrzeug stabilisierende Korrekturmaßnahme hervorruft, wenn eine Aktivierungsschwelle von einer ermittelten Gierrate überschritten wird, wobei die Aktivierungsschwelle auf einen niedrigeren Wert abgesenkt wird, sobald ein Lastwechselvorgang ermittelt wird. Die Erfindung betrifft auch eine Vorrichtung enthaltend Mittel zum Durchführen eines solchen Verfahrens.