A hybrid vehicle includes an electric machine, an engine selectively coupled to the electric machine by a disconnect clutch, and a controller. The controller is programmed to, in response to a change in the driver-demanded torque necessitating starting of the engine: determine a state of driving (SOD) based on the change in driver-demanded torque, wherein the SOD is indicative of a desired responsiveness of the vehicle, and the desired responsiveness increases as SOD increases; command a speed target to the engine equal to a predicted motor speed associated with the driver-demanded torque plus an offset that is based on the SOD; and command a capacity to the disconnect clutch at a rate and a magnitude based on the SOD.

A system, apparatus and method for controlling operation of a vehicle. Driver assistance system (DAS) data may be used for controlling one or more function of the vehicle via a driver assistance system. Driver profile data (DPD) is generated and/or received that includes training data from sensor monitoring of a driver's usage characteristics for at least one feature of a vehicle type during a driver-controlled mode of vehicle driving. The DPD is processed with the DAS data to determine if the DPD conform to one or more safety metrics. A driver profile data file may be created by weighing the portions of the DAS data with the DPD that do not conform with the safety metrics. One or more functions on the vehicle may be controlled via the driver profile data file using the driver assistance system during one of a semi-autonomous and fully autonomous mode of operation.

A method of controlling launch of a vehicle, may include setting step in which a controller sets a basic target engine speed; a transient control step in which the controller controls a clutch torque based on the basic target engine speed; a transient state determining step in which the controller determines, whether a transition period of change of the engine speed elapsed; a first correction amount determination step in which the controller determines a correction amount; a correction applying step in which the controller adds the correction amount to the predetermined target engine speed and then determines a final target engine speed; an error determination step in which the controller determines the engine speed control error; and a feedback determination step in which the controller uses the engine speed control error and determines a feedback control amount for feedback-controlling a clutch actuator.

A hybrid vehicle may include: an engine including a plurality of cylinders for generating power required for driving the hybrid vehicle by combustion of fuel; a first motor starting the engine and selectively operating as a generator to generate electrical energy; a second motor generating power required for driving the hybrid vehicle; a clutch provided between the engine and the second motor; and a controller configured for synchronizing a velocity of the second motor and an engine velocity and for coupling the clutch, in a transition section in which the engine moves from a stop state to an optimal operation point area as an operation area of the engine, and gradually decreasing a torque of the second motor and gradually adjusting the number of combusted cylinders among the plurality of combustion chambers to gradually increase the engine torque.

A control system of a hybrid vehicle, in which a driving power source for travel includes an engine that is started by cranking, a motor that can control a torque, and a clutch that is coupled with the motor and in which a transmission torque capacity continuously changes depending on a change of a control amount is configured to estimate a torque of the clutch based on the torque that the motor outputs, and change rates of the rotational speed of the motor and the clutch caused by changing the control amount, when the torque that the motor outputs is transmitted by the clutch that is in a slip state by changing the control amount.

The hybrid electric vehicle has a first traveling mode in which the clutch is engaged and the engine is operating, and a second traveling mode in which the clutch is disengaged and the engine is stopped. When switching from the first traveling mode to the second traveling mode, the controller for the hybrid electric vehicle performs the torque replacement control and then disengages the clutch. During the torque replacement control, the controller causes the variable valve mechanism provided in the engine to change the valve timing at a smaller change rate than during a normal engine control.

An inching system for a vehicle having a hydrostatic transmission and an engine that drives the transmission. The transmission has a pilot pressure port with a pressure of hydraulic fluid at the pilot pressure port controlling a level of power from the transmission, a beginning of draining of the hydraulic fluid from the pilot pressure port defining an inching starting point. The system includes a brake pedal and an electrohydraulic valve coupled to the pilot pressure port of the transmission, the valve being configured to drain the hydraulic fluid at the pilot pressure port. A sensor is coupled to the pedal to detect an input from the operator, the sensor producing a signal indicative of the input from the operator. A controller receives the signal and a speed of the engine. The controller controls the electrohydraulic valve dependent upon the signal and the engine speed so that the inching starting point is unchanged regardless of the speed of the engine.

A computer for managing the drive train of a hybrid vehicle including an internal combustion engine, an electric machine and a battery. The drive train being capable of operating in a plurality of charging or discharging modes of the battery, the computer determines a set of probabilities of activation of the mode, determines the value of the speed of the electric motor for each mode, determines a set of electrical powers of the electric machine, calculates an energy consumption reduction indicator, determines the torque requested by the driver, the value of the speed of the internal combustion engine and the speed of the vehicle, determines a torque to be applied to the electric machine, and sends a command to the electric machine on the basis of the torque to be applied to the electric machine determined.

A vehicle controller for a vehicle including a drive source including an electric motor includes: a sense-of-beating producer configured to acquire a total required torque which is a required torque of the entire vehicle and configured to derive a total target torque corresponding to the total required torque as applied to a predetermined engine combustion cycle; and a target motor torque deriver configured to, based on the total target torque, derive a target motor torque for torque control of the electric motor. The vehicle controller controls the electric motor based on the target motor torque.

A control system for a powertrain system includes an electronic control unit structured to receive ground speed data and load factor data. The electronic control unit determines an engine speed command to an engine and a torque command to a variable-torque transmission based upon an engine speed limit and a torque scale factor that can vary with ground speed and load factor. The commands produce an economy output of the powertrain to reduce fuel consumption.