Abstract: In a vehicle equipped with an engine and a shift control mechanism that switches a shift position by rotating a detent plate with an electric actuator, an electronic control device is an electronic control device including a reference position learning unit that executes a learning of a reference position of the actuator that serves as a reference for switching the shift control mechanism by the actuator when a starting condition that is set in advance is satisfied, and includes a drive wheel rotation suppression unit that suppresses a rotation of a drive wheel of the vehicle while the learning of the reference position is being executed by the reference position learning unit.

Abstract: A vehicle shift control device comprises: a shift position deciding portion deciding a shift position of a shift operating device based on a sensor signal output according to an operation of the shift operating device; and a drive power output command portion selecting a shift range based on a shift position determination signal output from the shift position deciding portion to cause a vehicle to run, when a communication abnormality has occurred so that the shift position determination signal is not transmitted from the shift position deciding portion to the drive power output command portion, the vehicle shift control device selecting a shift range maintained at the time of occurrence of the communication abnormality of the shift position determination signal if a vehicle speed is equal to or greater than a predetermined value, and selecting a neutral range if the vehicle speed is less than the predetermined value.

Abstract: A shift range is selected based on a vehicle speed or acceleration of a vehicle and a shift range kept by a drive unit at the time when it is determined that there is a malfunction in shift sensors. Thus, it is possible to avoid a disabled self-propelled state resulting from a change into a neutral range through a fail-safe operation and keep limp home running.

Abstract: A detecting device includes a shift selector, a magnet disposed in the shift selector, four or more sensors arranged at positions facing the magnet and an ECU. The ECU is configured to (i) determine a shift position based on signals output from the four or more sensors when the magnet is relatively displaced with respect to the four or more sensors in response to an operation of the shift selector, (ii) determine the shift position based on signals output from three or more of the four or more sensors determined to be normal when any one of the four or more sensors is abnormal, and (iii) determine the abnormality based on whether or not the three or more sensors output, during the traveling of the vehicle, a signal to a shift position pertaining to a case of traveling in the direction opposite to a traveling direction of the vehicle.

Abstract: A vehicle system includes: a shift operation device including an operator, the operator being configured to be returned to an initial position when not operated by a driver, the operator being configured to be operated by the driver to an operation position corresponding to a shift position of an automatic transmission; a change mechanism configured to change the shift position by activating an actuator; and an electronic control unit configured to set a first required position on the basis of the initial position and the operation position, electrically change the shift position on the basis of the required position, hold the required position as a second required position until a new required position is set on the basis of the operation position, and, by comparing the second required position with the shift position, determine whether the vehicle system is abnormal.

Abstract: A vehicle shift control device comprises: a shift position deciding portion deciding a shift position of a shift operating device based on a sensor signal output according to an operation of the shift operating device; and a drive power output command portion selecting a shift range based on a shift position determination signal output from the shift position deciding portion to cause a vehicle to run, when a communication abnormality has occurred so that the shift position determination signal is not transmitted from the shift position deciding portion to the drive power output command portion, the vehicle shift control device selecting a shift range maintained at the time of occurrence of the communication abnormality of the shift position determination signal if a vehicle speed is equal to or greater than a predetermined value, and selecting a neutral range if the vehicle speed is less than the predetermined value.

Abstract: A shift range is selected based on a vehicle speed or acceleration of a vehicle and a shift range kept by a drive unit at the time when it is determined that there is a malfunction in shift sensors. Thus, it is possible to avoid a disabled self-propelled state resulting from a change into a neutral range through a fail-safe operation and keep limp home running.

Abstract: According to a parking lock control computer, in a case where there is a switching request from a non-parking lock state of a parking lock mechanism to a parking lock state based on a driver's manual operation of a P switch or a vehicle power switch, the P switch or the vehicle power switch is operated in a state where a vehicle speed V exceeds a P lock permissible vehicle speed Vp, a parking lock operation is inhibited, and a parking lock rejection history is stored, switching to the parking lock state of the parking lock mechanism by a door opening operation is permitted.

Abstract: A detecting device includes a shift selector, a magnet disposed in the shift selector, four or more sensors arranged at positions facing the magnet and an ECU. The ECU is configured to (i) determine a shift position based on signals output from the four or more sensors when the magnet is relatively displaced with respect to the four or more sensors in response to an operation of the shift selector, (ii) determine the shift position based on signals output from three or more of the four or more sensors determined to be normal when any one of the four or more sensors is abnormal, and (iii) determine the abnormality based on whether or not the three or more sensors output, during the traveling of the vehicle, a signal to a shift position pertaining to a case of traveling in the direction opposite to a traveling direction of the vehicle.

Abstract: According to a parking lock control computer, in a case where there is a switching request from a non-parking lock state of a parking lock mechanism to a parking lock state based on a driver's manual operation of a P switch or a vehicle power switch, the P switch or the vehicle power switch is operated in a state where a vehicle speed V exceeds a P lock permissible vehicle speed Vp, a parking lock operation is inhibited, and a parking lock rejection history is stored, switching to the parking lock state of the parking lock mechanism by a door opening operation is permitted.

Abstract: A vehicle system includes: a shift operation device including an operator, the operator being configured to be returned to an initial position when not operated by a driver, the operator being configured to be operated by the driver to an operation position corresponding to a shift position of an automatic transmission; a change mechanism configured to change the shift position by activating an actuator; and an electronic control unit configured to set a first required position on the basis of the initial position and the operation position, electrically change the shift position on the basis of the required position, hold the required position as a second required position until a new required position is set on the basis of the operation position, and, by comparing the second required position with the shift position, determine whether the vehicle system is abnormal.

Abstract: A vehicle control device includes: a first calculation processing portion outputting a calculation result based on an input value; and a second calculation processing portion acquiring the same input value as the input value of the first calculation processing portion, the second calculation processing portion detecting an abnormality of the first calculation processing portion based on comparison between the input value of the second calculation processing portion and the calculation result of the first calculation processing portion or based on whether the calculation result is a predefined highly safe state value at which a relatively high safety state of a vehicle is acquired.

Abstract: A vehicle control device includes: a first calculation processing portion outputting a calculation result based on an input value; and a second calculation processing portion acquiring the same input value as the input value of the first calculation processing portion, the second calculation processing portion detecting an abnormality of the first calculation processing portion based on comparison between the input value of the second calculation processing portion and the calculation result of the first calculation processing portion or based on whether the calculation result is a predefined highly safe state value at which a relatively high safety state of a vehicle is acquired.

Abstract: A speed changing control apparatus for use in a vehicle includes: a driving power source configured to generate driving power for running; a transmission having a synchromesh mechanism configured to synchronize an input shaft revolution number with an output shaft revolution number and an actuator configured to automatically carry out a shift operation; and an automatic clutch disposed between the driving power source and the transmission. The speed changing control apparatus is configured to start a shift disengaging operation for the transmission after a speed change is requested and before the automatic clutch turns into a decoupled state, so as to suppress torsional vibration at the time of decoupling the automatic clutch. Such control enables the synchromesh mechanism to carry out revolution synchronization with the input shaft revolution number of the transmission in a lowered state, and diminishes a revolution difference subjected to synchronization.

Abstract: A speed changing control apparatus for use in a vehicle includes: a driving power source configured to generate driving power for running; a transmission having a synchromesh mechanism configured to synchronize an input shaft revolution number with an output shaft revolution number and an actuator configured to automatically carry out a shift operation; and an automatic clutch disposed between the driving power source and the transmission. The speed changing control apparatus is configured to start a shift disengaging operation for the transmission after a speed change is requested and before the automatic clutch turns into a decoupled state, so as to suppress torsional vibration at the time of decoupling the automatic clutch. Such control enables the synchromesh mechanism to carry out revolution synchronization with the input shaft revolution number of the transmission in a lowered state, and diminishes a revolution difference subjected to synchronization.