The motor vehicle is configured to recognize a shift position in response to the user's shift operation of a shift lever and to control a driving system, based on the shift position and the user's accelerator operation, brake operation and steering operation. On occurrence of a predetermined abnormality that causes a failure in recognizing the shift position, the motor vehicle sets an abnormality-time shift position based on vehicle peripheral information and notifies the abnormality-time shift position. When a moving direction is set by a moving direction setting unit that is provided separately from the shift lever and that allows the user to set the moving direction, the motor vehicle resets the abnormality-time shift position based on the moving direction, and controls the driving system, based on the abnormality-time shift position, the brake operation and the steering operation.

The invention relates to a hydraulic system for a vehicle transmission, comprising: a hydraulic circuit arranged for generating a pressure, a hydraulic actuator arranged for engaging a park lock system, wherein the hydraulic actuator is hydraulically connected to the hydraulic circuit for actuation of the hydraulic actuator using the pressure, and a back-up system configured to keep he pressure above a predetermined pressure threshold for maintaining an actuation of the hydraulic actuator for a predetermined period of time in case of an operational interruption of a transmission control unit of the vehicle.

A vehicle control device is applied to a vehicle including at least a shift control system configured to switch a shift range. The vehicle control device is configured to control the vehicle to perform autonomous driving travel without depending on an operation of a driver in at least one driving operation. The vehicle control device includes a controller. The controller is configured to determine the propriety of travel by the autonomous driving travel according to a type of abnormality that occurs in the shift control system. The controller is configured to perform travel control of the vehicle according to the propriety of the travel by the autonomous driving travel.

A method is provided for controlling a hybrid vehicle in an emergency situation. The hybrid vehicle includes an internal combustion engine, a rechargeable electric energy storage system, and an electrical motor drive system. The method includes detecting a failure of a control unit for controlling the electrical motor drive system, disconnecting the rechargeable electric energy storage system from the hybrid vehicle, limiting the maximum speed of the internal combustion engine from a first RPM value to a second RPM value. An apparatus is also provided for controlling a hybrid vehicle in an emergency situation.

An electromagnetic control valve normality determination system includes: a hydraulic pressure source; an electromagnetic control valve structured to regulate an actual pressure of oil to a pressure command point, wherein the oil is supplied from the hydraulic pressure source; and an actual pressure sensor structured to sense the actual pressure of the oil. For determining normality of pressure regulation of the electromagnetic control valve, a normality determinator is configured to: set pressure command regions for determination about pressure regulation of the electromagnetic control valve, without overlapping among the pressure command regions; determine for each of the pressure command regions whether a difference between the actual pressure and the pressure command point in the each of the pressure command regions is less than a threshold value; and determine that the electromagnetic control valve is normal, in response to affirmation of the determination for all of the pressure command regions.

Non-inverted park lock systems and methods include an engine controller configured to control an engine of a vehicle in communication with a separate transmission controller via a controller area network (CAN), wherein the transmission controller is configured to control a transmission of the vehicle; and a conductor connecting the engine controller to a park lock solenoid disposed in the transmission and configured to move a park pawl to engage/disengage park. The engine controller keeps the park pawl disengaged from park during a power loss malfunction at the transmission controller and the transmission controller keeps the park pawl disengaged from park during a power loss malfunction at the engine controller by maintaining hydraulic pressure in the transmission at a threshold level until park is requested via the shifter.

A shift element for a vehicle gearbox is designed to be displaced parallel to an actuation direction. The shift element has a mechanism which is designed to convert a drive movement applied to a drive interface of the mechanism into a displacement of the shift element parallel to the actuation direction.

A method for filling an actuator in a gearbox fills the actuator only when the gearbox is in a passive state by virtue of fluid being introduced into an armature space of the actuator by way of axial movements of an armature rod when the actuator has been fluidically connected to a fluid-filled fluid space of the gearbox.

A shift range switching system includes: a motor that includes motor windings and generates a cogging torque by a permanent magnet; drive circuits; an output shaft; a shift range switching mechanism that includes a trough providing member with troughs and crests and integrally rotates with the output shaft, an engagement member that fits in one trough corresponding to a shift range, and an urging member that urges the engagement member toward one trough; and a control unit with one calculation unit. The engagement member drops into one trough with an allowance. When an abnormality occurs in motor drive systems in an ascending action in which the engagement member moves from one trough toward one crest, the shift range switching systems avoids an occurrence of an intermediate range stop abnormality.

A shift range control device includes an angle detector, a valley position learner, and a validity determiner. The angle detector detects a rotation angle of an output shaft of a shift actuator. The valley position learner learns the rotation angle of the output shaft when a locker is positioned at a valley bottom of a recess as a valley position based on a detection angle of the angle detector. The validity determiner determines validity of a learning value of the valley position learner.