A system and method for controlling the velocity of a vehicle includes a processor, a velocity sensor in communication with the processor, a throttle actuator in communication with the processor, and a brake actuator in communication with the processor. The processor is set either the throttle position of the vehicle via the throttle actuator or the brake pedal position of the vehicle via the brake actuator based whether the augmented acceleration is greater than or equal to a gear acceleration, whether the actual velocity is above a crawl speed, and a lookup table.

A vehicle traveling control apparatus comprises a driving support ECU. The driving support ECU determines whether or not a driver of a vehicle is under an abnormal state where the driver losses an ability to drive the vehicle. The driving support ECU executes a deceleration control to decelerate the vehicle after an abnormal determination time point at which it is determined that the driver is under the abnormal state. The driving support ECU decelerates a vehicle speed of the vehicle to within a predetermined low vehicle speed range and thereafter, causes the vehicle to travel at a speed within the low vehicle speed range.

A clutch control method is provided for a four-wheel-drive vehicle in which the main drive wheels are connected to a drive source, and the auxiliary drive wheels are connected via a friction clutch to the drive source. When the vehicle starts off due to an accelerator depressing operation, the friction clutch is engaged to distribute, a drive torque from the drive source to the main drive wheels and the auxiliary drive wheels. In this clutch control method, when the vehicle switches from a traveling state to a stopped state while maintaining in a travel shift position, a control is preformed to apply initial torque as an engagement torque control of the friction clutch while the vehicle is stopped. A magnitude of the initial torque is set to a magnitude that maintains a drive-system torsion state by transmitting torque to an auxiliary-drive-wheel drive system before the vehicle is stopped.

An on-board controller executes a torque reduction process that reduces torque generated by an electric motor when a brake pedal of a vehicle is depressed and the vehicle is stopped during motor creep driving. When a start request for an internal combustion engine is issued, the on-board controller executes an engine start process that sets a clutch mechanism to an engagement state, which engages an output shaft of the internal combustion engine with an output shaft of the electric motor, and drives the electric motor to perform cranking. When a state in which the clutch mechanism is maintained immediately before the engagement state is defined as an engagement preparation state, the on-board controller executes a preparation process that applies hydraulic pressure to the clutch mechanism during execution of the torque reduction process so that the clutch mechanism is set to the engagement preparation state.

A system includes a planetary gear assembly having a ring gear, a plurality of planet gears coupled to a carrier, and a sun gear coupled to a main shaft. The system further includes a driven gear coupled to the carrier, a countershaft gear coupled to the driven gear, a motor/generator coupled to the main shaft, and an actuator structured to change a coupling of the ring gear based on a position of the actuator.

A system and method for controlling a hybrid electric vehicle using a driving tendency are provided. The method includes determining a driving tendency level based on data to determine a driving tendency of a driver and determining a target engine torque using an engine torque map based on a vehicle speed and a required torque. Whether the driving tendency level corresponds to a predetermined level is determined as well as whether the required torque is equal to or greater than a torque that corresponds to an optimal operating point of an engine when the driving tendency level corresponds to the predetermined level. The target engine torque is then adjusted when the required torque is equal to or greater than the torque that corresponds to the optimal operating point of the engine.

Systems and methods for operating a driveline of a hybrid vehicle are described. In one example, a torque of an engine is adjusted in response to an error between an actual electric machine torque and a minimum electric machine torque plus an offset torque. The reduction of engine torque may be performed when a driveline is operating in a speed control mode.

A vehicle system including a propulsion system coupled to a drive wheel and a friction brake configured to apply braking torque to a vehicle wheel is described. Operation thereof includes an instruction set that is executable to monitor vehicle speed, vehicle grade, and an operator braking request, and execute instructions upon achieving a vehicle speed that is less than a threshold speed. The instructions include controlling, via the friction brake, the braking torque to achieve a desired vehicle speed, and determining an operator acceleration request and the vehicle grade. The controller determines a minimum vehicle grade-based operator acceleration request, and releases the friction brake only when the operator acceleration request is greater than the minimum vehicle grade-based operator acceleration request.

The present invention is related to a vehicle including a motor-generator, a transmission, a shift hydraulic control unit, and a CVT control unit (CVTCU). When a downshift of the transmission is performed without an acceleration request from a driver, the CVTCU sets a pulley thrust at a secondary pulley on the basis of a first lower limit as a lower limit, which is a sum of a fundamental thrust and a first correction thrust. The CVTCU also sets a pulley thrust at a primary pulley on the basis of a second lower limit as a lower limit, which is a sum of the fundamental thrust and a second correction thrust.

A movement distance calculation device includes: a first movement distance calculation unit which calculates a first movement distance of a movable body based on plural rotation speeds of plural wheels of the movable body and a steering angle of the movable body; a vector detection unit which detects a movement vector of an object included in the acquired images as defined herein; a second movement distance calculation unit which calculates a second movement distance of the movable body based on the movement vector; a first reliability determining unit which determines reliability of the calculated first movement distance as defined herein; a second reliability determining unit which determines reliability of the calculated second movement distance as defined herein; and a movement distance determining unit which determines a movement distance using at least one of the calculated first movement distance and the calculated second movement distance as defined herein.