A method of controlling engine on of a hybrid vehicle, may include determining, by a controller, a shift pattern of the vehicle between multiple regions; deriving, by the controller, a shifting possibility of the vehicle from each of the regions; and deriving an engine-on strategy of the vehicle on the basis of the derived shifting possibility, and controlling an engine of the vehicle to be on or off in accordance with the derived engine-on strategy.

A control system for a hybrid vehicle that reduces delay in engagement of a clutch when shifting an operating mode by manipulating the clutch. A controller is configured to adjust a speed of a first motor to a first standby speed at which the speed difference in a first clutch is reduced when an operating mode will be shifted from a single-motor mode to a first mode, and adjust a speed of the first motor to a second standby speed at which a speed difference in the second clutch is reduced when the operating mode will be shifted from the single-motor mode to a second mode.

A method for controlling a hybrid vehicle (1) is provided. The hybrid vehicle includes an electric motor (13) that drives the vehicle to travel, a generator (12) that supplies power to the electric motor, and an engine (11) that drives the generator. The method includes calculating an amount or factor of change in target driving force (Fd) for the vehicle, setting a change rate (NRu, NRd) of a rotational speed of the engine in accordance with the amount or factor of change in the target driving force, and controlling the rotational speed of the engine on the basis of the change rate of the rotational speed of the engine.

A driver assistance system includes a detector configured to detect pedestrians or obstacles in a front detection area and a rear detection area of a vehicle; an accelerator pedal sensor configured to detect a position of an accelerator pedal of the vehicle; and a controller configured to selectively activate the front detection area and the rear detection area according to a gear state of the vehicle, when there is the pedestrians or the obstacles in the activated detection area, to recognize an acceleration pedal change amount from an acceleration pedal position detected through the accelerator pedal sensor, to determine whether emergency braking of the vehicle is necessary based on the recognized acceleration pedal change amount, and when the emergency braking is necessary, to perform the emergency braking for the vehicle.

Systems and methods for improving operation of a vehicle that includes an engine that may be automatically stopped and started are presented. In one example, vehicle launch control parameters are adjusted responsive to a learned driving style. The approach may provide vehicle launches that are closer to driver expectations than vehicle launches that are based solely on accelerator pedal position.

A vehicle transmission system may include an engine outputting power from fuel combustion, a transmission coupled to the engine and including at least one clutch to control torque input from the engine, an supercharger compressing an intake air and supplying the compressed intake air to the engine, and a control unit, where, when a predetermined acceleration condition is satisfied, the control unit is configured to operate the supercharger and to control the transmission according to a transmission clutch stroke operation map corresponding to the operation of the electric supercharger, to vary an engagement speed of the clutch when the supercharger is operated.

A vehicle transmission system may include an engine outputting power from fuel combustion, a transmission coupled to the engine and including at least one clutch to control torque input from the engine, an supercharger compressing an intake air and supplying the compressed intake air to the engine, and a control unit, where, when a predetermined acceleration condition is satisfied, the control unit is configured to operate the supercharger and to control the transmission according to a transmission clutch stroke operation map corresponding to the operation of the electric supercharger, to vary an engagement speed of the clutch when the supercharger is operated.

A computer implemented method, system and computer product are provided. The method is under control of one or more processors configured with specific executable program instructions. The method obtains driver-initiated action (DIA) data indicative of a driving maneuver of a principle vehicle and obtains traffic movement related (TMR) data indicative of a course of an object in an environment at least partially around the principle vehicle. The method analyzes the DIA data and TMR data to determine a potential traffic impact (PTI) condition between the principle vehicle and the object and generates a driver notification of the PTI condition.

An apparatus for controlling a four-wheel drive vehicle includes a tire friction circle calculator that calculates the size of a tire friction circle of each wheel on the basis of vehicle information including a tire vertical load, a resultant force calculator that calculates the magnitude of a resultant force of tire lateral and longitudinal forces for each wheel, a tire-friction-force usage rate calculator that calculates a tire-friction-force usage rate of each wheel that is the ratio of the magnitude of the resultant force to the size of the tire friction circle, and a driving-braking force adjustment controller that adjusts driving force or braking force applied to each wheel. When the tire-friction-force usage rate of any wheel exceeds a predetermined threshold of less than one, the driving-braking force adjustment controller restrains an increase in the driving force or the braking force of the wheel while increasing the driving force or the braking force of at least one of the other wheels that is selected on the basis of driving operation information indicative of the state of a driving operation by a driver.

An engine is controlled such that a first motor rotates at a rotational speed that causes a counter-electromotive voltage of the first motor to be higher than direct current-side voltages of a first inverter and a second inverter, and the first motor outputs torque to a driving shaft through a planetary gear set when an accelerator is on during specified travelling with gates of the first inverter and the second inverter being cut off and an engine being operated. When the accelerator is turned off during the specified traveling, fuel injection of the engine is stopped.