A vehicle includes a prime mover, a transmission having an electronic transmission range selection (ETRS) system, a user interface device that generates an electric range selection (ERS) signal in response to a selected operating range, and a controller. The controller processes the ERS signal and determines the operating range and executes a remedial control action when the incorrect powerflow is detected. The remedial action may include interrupting powerflow. A control apparatus includes the user interface device and controller. A method includes determining if a powerflow fault condition is present, including comparing clutches commanded on against a calibrated list of clutches not permitted to be on, and one or both of comparing a measured speed ratio to an expected speed ratio and comparing actual switch states of mode valves to states commanded by the ETRS system. The method includes executing the remedial control action when the incorrect powerflow is detected.

A vehicle includes a prime mover, a transmission having an electronic transmission range selection (ETRS) system, a user interface device that generates an electric range selection (ERS) signal in response to a selected operating range, and a controller. The controller processes the ERS signal and determines the operating range and executes a remedial control action when the incorrect powerflow is detected. The remedial action may include interrupting powerflow. A control apparatus includes the user interface device and controller. A method includes determining if a powerflow fault condition is present, including comparing clutches commanded on against a calibrated list of clutches not permitted to be on, and one or both of comparing a measured speed ratio to an expected speed ratio and comparing actual switch states of mode valves to states commanded by the ETRS system. The method includes executing the remedial control action when the incorrect powerflow is detected.

An abnormality detection device for a hydraulic circuit including an oil pump, a switching unit switching between a fully discharged state and a partial discharge, a pressure regulator, a pressure regulation controller and a hydraulic detector, The device includes: a storage storing a maximum discharge pressure of oil capable of being discharged in the partially discharged state; a switching controller performing control of switching into the fully discharged state; and a determination unit determining that the switching unit has a fixation abnormality of the partially discharged state when a hydraulic pressure approximately corresponds to the maximum discharge pressure in the partially discharged state in a state where a hydraulic pressure higher than the maximum discharge pressure in the partially discharged state is set as a target hydraulic pressure and the pressure regulator is controlled to achieve the target hydraulic pressure after the switching control.

An abnormality detection device for a hydraulic circuit including an oil pump, a switching unit switching between a fully discharged state and a partial discharge, a pressure regulator, a pressure regulation controller and a hydraulic detector, The device includes: a storage storing a maximum discharge pressure of oil capable of being discharged in the partially discharged state; a switching controller performing control of switching into the fully discharged state; and a determination unit determining that the switching unit has a fixation abnormality of the partially discharged state when a hydraulic pressure approximately corresponds to the maximum discharge pressure in the partially discharged state in a state where a hydraulic pressure higher than the maximum discharge pressure in the partially discharged state is set as a target hydraulic pressure and the pressure regulator is controlled to achieve the target hydraulic pressure after the switching control.

A vehicle makes a notification to prompt a driver to perform a predetermined operation in a case in which a predetermined function of the vehicle is lost, and starts a recovery operation of the function on condition that the predetermined operation is performed.

A vehicle makes a notification to prompt a driver to perform a predetermined operation in a case in which a predetermined function of the vehicle is lost, and starts a recovery operation of the function on condition that the predetermined operation is performed.

A shift-by-wire control device includes a first detector, a second detector, an auto parking control unit, and a malfunction determining unit. The first and second detectors respectively detect first and second vehicle states attributed to behaviors of a driver. The auto parking control unit executes an auto parking control irrespective of a state of the shift range selected by the shift lever, on conditions that detection results derived from the first and second detectors satisfy respective predetermined conditions. The malfunction determining unit determines that the first detector is malfunctioning, on a condition that the first detector fails to detect a change in the first vehicle state. The auto parking control unit refrains from executing the auto parking control, on a condition that the first detector is determined by the malfunction determining unit as malfunctioning.

A shift-by-wire control device includes a first detector, a second detector, an auto parking control unit, and a malfunction determining unit. The first and second detectors respectively detect first and second vehicle states attributed to behaviors of a driver. The auto parking control unit executes an auto parking control irrespective of a state of the shift range selected by the shift lever, on conditions that detection results derived from the first and second detectors satisfy respective predetermined conditions. The malfunction determining unit determines that the first detector is malfunctioning, on a condition that the first detector fails to detect a change in the first vehicle state. The auto parking control unit refrains from executing the auto parking control, on a condition that the first detector is determined by the malfunction determining unit as malfunctioning.

A diagnostic system of a vehicle for diagnosing a drive belt of a continuously variable transmission. A diagnostic circuit detects or predicts a fault of the drive belt based on an operating parameter received from a sensor associated with the vehicle during a predetermined diagnostic period.

A diagnostic system of a vehicle for diagnosing a drive belt of a continuously variable transmission. A diagnostic circuit detects or predicts a fault of the drive belt based on an operating parameter received from a sensor associated with the vehicle during a predetermined diagnostic period.