A system and method for estimating disconnect clutch torque during engine start with the motor in vehicles having an engine selectively coupled to the motor and transmission may be configured to control motor torque based on a clutch torque estimated from a difference in a measured powertrain state and a predicted powertrain state using motor torque as an input. The powertrain states may include, for example, motor speed, turbine speed, engine speed and clutch torque. An adaptive gain may be used to drive the difference between measured and estimated clutch torque toward zero.

A method is provided for operating a navigation system of a hybrid motor vehicle having a combustion engine and an electric motor that is fed from an associated battery. In this method, an efficiency route enabling a maximum utilization of the electric motor is determined by the navigation system, where at least one item of efficiency information is considered in the determination of the efficiency route. The efficiency information is provided dynamically by a drive control device of the motor vehicle and is dependent on the current operating state and/or the current operating prediction.

A method is for calculating a management setpoint for the consumption of fuel and of electric current by a hybrid motor vehicle including at least one electric motor that is supplied with electric current by a traction battery and an internal combustion engine that runs on fuel. The method includes: dividing a journey into segments; acquiring attributes for each segment; for each segment, acquiring a relationship between the fuel and electrical consumption; determining an optimal consumption point in each acquired relationship to maximize discharging the traction battery over the segments for which use of the internal combustion engine is not authorized, minimize the fuel consumption of the hybrid motor vehicle over the entire journey, and maximize the discharging of the traction battery upon completion of the journey; and developing a setpoint for power management over the entire journey, according to the coordinates of the optimal points.

The power-transmission device has an input shaft, an output shaft, a gear mechanism, and a motor. The gear mechanism includes a plurality of planetary gear mechanisms and a mode-switching mechanism, and transmits the rotations of the input shaft to the output shaft. The mode-switching mechanism selectively switches the drive-power transmission path of the power-transmission device between a plurality of modes. The motor is connected to the rotating elements of the planetary gear mechanisms. A target-input-torque determination unit determines the target input torque, which is a target value for the torque to be inputted to the power-transmission device. The target-output-torque determination unit determines the target output torque, which is a target value for the torque to be outputted from the power-transmission device. The command-torque determination unit uses the torque balance information to determine torque commands to the motor from the target input torque and the target output torque.

A driving analyzer for a haulage vehicle includes: a data loader acquiring a cycle data set each time when the haulage vehicle travels the route back and forth and storing the cycle data set in a memory, the cycle data set including: position information of the traveling haulage vehicle; and driving information including information about fuel consumption and load amount; a data extractor extracting reference cycle data set and analysis-target cycle data set from a plurality of cycle data sets in the memory; a section extractor dividing the route into a plurality of sections based on the position information and extracting an analysis-target section therefrom; and a driving information output unit outputting a part of the driving information regarding the analysis-target section according to each of the reference cycle data set and the analysis-target cycle data set.

A system for controlling an operating point of a power source for a propulsive e-machine in a hybrid electric vehicle, including: a power train including a power source and at least one propulsive e-machine, wherein the power source includes an integrated starter generator and an internal combustion engine; at least one desired operating point for the power source including at least one characteristic parameter; an operating point component configured to query the at least one desired operating point and to selectively distribute the control of the at least one desired operating point to a control of the internal combustion engine or to a control of the integrated starter generator control.

Systems and methods for operating a hybrid powertrain that includes an engine and a motor/generator are described. The systems and methods provide different ways to transition engine operating conditions between two low engine fuel consumption operating regions that are separated by a higher engine fuel consumption operating region. In one example, engine torque is increased at a higher rate in a fuel economy mode to increase an amount of time an engine operates in one of the two low fuel consumption operating regions.

A vehicle control method for controlling a vehicle in which a sailing control for traveling under inertia is executed when a vehicle is traveling. Each time the sailing control is executed, a history of sailing control is stored as history information classified according to situations in which sailing control was canceled. Also, a current travel situation is specified, history information corresponding to a current travel situation is specified from the stored history information, and whether to allow or disallow sailing control is determined based on the specified history information.

A vehicle information display may include a split braking gauge for conveying information relating to braking operation and efficiency to assist drivers in maximizing energy capture during braking in vehicle with regenerative braking systems. The split braking gauge may incorporate a side-by-side or stacked configuration for conveying both regenerative braking and friction braking values. The split braking gauge may include fixed thresholds or boundaries associated with dynamic threshold values that can change based on current vehicle operating conditions.

A hybrid electrical vehicle and a method for controlling a hybrid electrical vehicle are provided. The vehicle includes: a transmission device (1) connected with wheels (2a and 2b) of the hybrid electrical vehicle; an engine (3) and a gearbox (4), wherein the engine (3) is connected with the transmission device (1) via the gearbox (4); an electric motor (5) and a gear reducer (6), wherein the electric motor (5) is connected with the transmission device (1) via the gear reducer (6); a power battery (7) configured to supply power to the electric motor (5); and a control module configured to start the engine (3) and the electric motor (5) according to a working mode selected by a user from a plurality of working modes, and to control the vehicle to switch between the plurality of working modes according to a driving state of the vehicle and/or a working state of the power battery.