Abstract:
A control system for a vehicle including an engine (20), an electrical storage unit (28) and a generator (22; 24) driven by the engine, the control system includes a socket (104) and a controller (76). The socket is configured to supply electric power from the generator or the electrical storage unit to a device outside the vehicle in a travel stop state. The controller stops the engine when a preset condition is satisfied. The controller sets a first range and a second range in which the condition is satisfied. The first range is the range in a case where electric power is supplied to the device outside the vehicle and the second range is the range in another case. The first range is narrower than the second range.
Abstract:
Some exemplary embodiments include a hybrid vehicle cooling system comprising a closed loop coolant flowpath including a valve operable to direct coolant flow to an internal combustion engine or to an internal combustion engine bypass, a thermostat operable to direct coolant flow from the internal combustion engine or the internal combustion engine bypass to a radiator or a radiator bypass, a plurality of hybrid powertrain components positioned in parallel to receive coolant flow from the radiator or the radiator bypass, a mechanically driven coolant pump operable to pump coolant through the closed loop coolant flowpath, and an electrically driven coolant pump operable to pump coolant through the closed loop coolant flowpath. Additional exemplary embodiments include methods of operation and/or control of hybrid vehicle cooling systems.
Abstract:
The invention provides a power storage system of a hybrid vehicle in which a battery can be charged with electric power supplied from an external power supply. The power storage system includes an engine heater and a battery heater, a DC/DC converter that converts a voltage of input power and outputs the power to the engine heater and the battery heater, respectively, a charger connected to the external power supply and operable to outputs power supplied from the external power battery to the battery and the DC/DC converter, and a controller that performs external charge control for charging the battery with power supplied from the external power supply, and temperature regulation control for raising the temperatures of the engine and the battery, by supplying power from the external power supply to the engine heater and the battery heater via the DC/DC converter, until the external charge control ends.
Abstract:
Es wird ein Verfahren zum Betreiben eines Bordnetzes von einem Kraftfahrzeug mit mindestens einem Energiespeicher (14) beschrieben, wobei das Kraftfahrzeug eine Brennkraftmaschine (2) und eine mit dieser mechanisch gekoppelte elektrische Maschine (4), ein betätigbares Fahrpedal (21) für die Vorgabe eines Drehmomentes, das mindestens von der Brennkraftmaschine (2) abgebbar ist, eine Motorsteuerung (18) für eine Einspritzung (J) von Kraftstoff in die Brennkraftmaschine (2), sowie insbesondere ein betätigbares Bremspedal (22) aufweist, durch das zumindest in einem ersten Teilbereich seiner Betätigung eine Steuerung (15) unter der Voraussetzung von ersten externen Betriebsbedingungen aktiviert wird, so dass eine Rekuperationsleistung der elektrischen Maschine unter gleichzeitiger Energieeinspeisung in das Bordnetz erzeugt wird. Um das Rekuperationspotential zu erhöhen, wird auf eine Rekuperationsleistung der elektrischen Maschine (4) von der Steuerung (15) in einer Betriebsphase umgestellt, in der aufgrund von Betätigungen des Fahrpedals (21) auf einen Fahrerwunsch zurückgeschlossen wird, der eine Bremsleistung des Fahrzeugs zur Folge hat, wobei die Einspritzung (J) der Brennkraftmaschine (2) aufgrund von zweiten internen Betriebsbedingungen des Fahrzeugs aufrecht erhalten wird.
Abstract:
A method and a system for control of a combustion engine in a vehicle is presented. According to the present invention, at least one future speed profile v sin ICE off for an actual speed V act of the vehicle is simulated during a road section ahead. The simulation is based on information about the road section and on knowledge that coasting with the combustion engine shut down will, at least initially, be applied during the road section. Subsequently, based at least on the at least one future speed profile v sin ICE off, starting point in time t ICE start is determined, when the combustion engine will need to be started because of a requirement for a forward driving force for the vehicle and/or a need to brake the vehicle. Subsequently, a starting point brought forward in time, t ICE pre_start , is determined, which precedes the starting point in time t ICE start . Thus, according to the present invention, the starting point brought forward in time, t ICE pre start, will occur before the starting point in time t ICE start, which is determined based on the need for a forward driving or braking force arising. Subsequently, the combustion engine is controlled to be started at the starting point brought forward in time, t lCE_pre_start.
Abstract:
The invention pertains to a method to make more efficient the engine operation in a motor vehicle, comprising the steps (s410; s420; s430) to continuously determine one or several of the parameters exhaust temperature (Texh), coolant (Tcool) and oil temperature (Toil); - to continuously determine (s440) a change in at least one of said temperatures (Texh; Tcool; Toil), as a basis for control of the heat development of said engine (s240), and - to control (s450) said heat development to achieve a desired operating mode in said engine. The invention also pertains to a computer program product comprising program code (P) for a computer (200; 210), to implement a method according to the invention. The invention also pertains to a device to make the engine operation more efficient in a motor vehicle (100), and a motor vehicle which is equipped with said device.