摘要:
This cruise control device enables more accurate prediction of running resistance and prevents worsening of fuel economy. In this device, a coasting prediction unit (12c) of an automatic cruise control device (12), which is for performing cruise control of the vehicle (1) on the basis of a resistance coefficient, predicts, on the basis of the resistance coefficient, the change in vehicle speed if the vehicle (1) were to coast; if the vehicle (1) does coast, a vehicle information acquisition unit (12b) acquires information about the detected vehicle speed; and a running resistance updating unit (12f) updates the value of the resistance coefficient on the basis of the information about the change in vehicle speed predicted by the coasting prediction unit (12c) and information about the vehicle speed acquired by the vehicle information acquisition unit (12b).
摘要:
A method for determination of a first parameter RF which represents a motive force capacity of a motor vehicle (1) provided with a power train which may assume various transmission ratios for propulsion of the vehicle (1). The vehicle includes an engine (10) and a gearbox (20). The first parameter RF is determined on the basis of a difference between a first motive force FMax and a second motive force FDr. The first motive force FMax is a maximum motive force available for the vehicle (1) at a current transmission ratio. The second motive force FDr is a current running resistance for the vehicle (1). There is a use of such a parameter. A computer program, a computer program product, a system and a motor vehicle related to such a parameter are disclosed.
摘要:
A hybrid vehicle control device for controlling a hybrid vehicle with an engine and an electric motor as drive sources of the vehicle includes a high-load road travel determination unit configured to determine whether or not the vehicle is traveling on a high running resistance road surface on which a predetermined vehicle acceleration is unobtainable only by an output of the engine, and a motor output setting unit configured to set an output of the electric motor. If the vehicle is determined to be traveling on the high running resistance road surface by the high-load road travel determination unit, the motor output setting unit limits the output of the electric motor when a vehicle speed reaches a predetermined vehicle speed.
摘要:
A deceleration factor estimation apparatus (1) estimating a deceleration factor of a vehicle (2) includes: a driving force acquisition unit (62) that obtains a driving force of the vehicle (2); a speed acquisition unit (60) that obtains a speed of the vehicle (2); an acceleration acquisition unit (61) that obtains an acceleration of the vehicle (2); and a deceleration factor estimation unit (63, 64, 65, 66) that estimates a plurality of deceleration factors on the basis of a relationship between the obtained driving force, speed, and acceleration, wherein the deceleration factor estimation unit (63, 64, 65, 66) switches the deceleration factor to be estimated on the basis of a travel condition of the vehicle (2).
摘要:
A system and approach for a vehicle system. The vehicle system may include a vehicle (10), a propulsion device (14) (e.g., a combustion engine or electric motor), and a controller (16). The propulsion device (14) may at least partially power the vehicle (10). The controller (16) may be in communication with the propulsion device (14) and may control the propulsion device according to a target speed of the vehicle. The controller may include a model (30) of energy balances of the vehicle and may use the model to estimate energy losses over a travel horizon of the vehicle. The controller may optimize a cost function (28) over the travel horizon of the vehicle based at least in part on the estimated energy losses to set an actual speed for the vehicle. The estimated energy losses may include one or more of aerodynamic drag, vehicle friction, and conversion efficiency from the propulsion device.
摘要:
A motor vehicle controller according to the invention comprises: means for receiving a signal indicative of a surface friction parameter, said surface friction parameter corresponding to a coefficient of friction between a road wheel and a driving surface; means for receiving a signal indicative of a position of an accelerator control with respect to an allowable range of positions; means for determining a critical powertrain torque limit value in dependence at least in part on the value of the surface friction parameter; and means for providing a traction warning indication to a driver in dependence on the value of the signal indicative of a position of the accelerator control and the critical powertrain torque limit value.
摘要:
Bei einem Fahrzeugüberwachungsverfahren eines Fahrzeuges, wobei die Fahrzeugmasse in Echtzeit während des Betriebs des Fahrzeuges bestimmt wird, wobei das Fahrzeug mit einer Fahrzeugrechnereinheit mit mindestens einer Sensoreinheit und einer Sendeeinheit ausgestattet ist und die Fahrzeugrechnereinheit mit einer Auswerterechnereinheit kommuniziert, wobei eine periodische Aufnahme von Istwerten von Sensoren durch die Sensoreinheit der Fahrzeugrechnereinheit erfolgt und auf eine Benutzung eines Massensensors verzichtet wird, soll ohne Einsatz weiterer oder spezieller Sensoren, sowie mit einfachen mathematischen Methoden die Reichweite des Fahrzeuges und/oder den Zeitpunkt eines nächsten Servicebesuches bestimmt werden. Dies wird dadurch erreicht, dass mittels fester Reifengrösse ( rw ), gemessener Übersetzung (G), sowie berechnetem Motordrehmoment (τ) die aktuelle Traktionskraft ( Ftrac ) ermittelt wird, sodass nach Division der aktuellen Beschleunigung ( ẍ ) durch die berechnete Traktionskraft ( Ftrac ) die aktuelle Fahrzeugmasse (mident) während eines Beschleunigungsvorganges zur Zeit berechnet wird und die bestimmten Fahrzeugmassen (mident) während des Betriebes des Fahrzeuges protokolliert werden.
摘要:
The present invention relates to a method for determining an energy consumption of a vehicle (100) which is provided with a first power source in the form of an engine (101) for generating a first driving force for propulsion of said vehicle (100). The method comprises estimating, when said vehicle (100) is travelling in a first direction, the energy consumed as a result of a first braking force which counteracts the movement of said vehicle (100) in said direction, and accumulating during said journey of said vehicle (100) a representation of the energy consumed as a result of said first braking force. The invention relates also to a system and a vehicle (100)