摘要:
An ECU controls a starter relay. Output angle detector detects a rotational angle of an output shaft in a rotary actuator. The ECU stores a first rotational angle which is detected by the output angle detector when a starting switch is OFF. When the starting switch is ON and when the difference between a second rotational angle detected at that time by the output angle detector and the first rotational angle already stored is not within a certain value, the ECU inhibits the operation of the starter relay to inhibit engine start.
摘要:
An ECU controls a starter relay. Output angle detector detects a rotational angle of an output shaft in a rotary actuator. The ECU stores a first rotational angle which is detected by the output angle detector when a starting switch is OFF. When the starting switch is ON and when the difference between a second rotational angle detected at that time by the output angle detector and the first rotational angle already stored is not within a certain value, the ECU inhibits the operation of the starter relay to inhibit engine start.
摘要:
By utilizing a mechanical backlash generated between an electric actuator and a shift range switching mechanism, a specific region is obtained, in which a variation in the output shaft angle is relatively small with respect to a variation in rotor angle. In this specific range, an actual shift range position is calculated, whereby the rotor angle that the motor controller recognizes is corrected so as to relate the actual shift range position. A deviation between the rotor angle and the actual shift range is corrected, so that the shift range switching is precisely performed.
摘要:
In a controller for a vehicle-mounted component, a shift position detector that detects an effective shift position of an automatic transmission. A shift position switching unit switches the effective shift position of the automatic transmission. A parking switching unit mechanically locks the output shaft of the automatic transmission when the effective shift position in a parking position. A shift position switching controller, which is not energized when the engine is stopped, controls the shift position switching unit. A memory device memorizes the effective shift position at a timing when the shift position switching controller stops being energized. A vehicle-mounted component controller prohibits an operation of a vehicle-mounted component when the effective shift position in the memory device is not in the parking position while the current supply to the shift position switching controller is stopped.
摘要:
In a controller for a vehicle-mounted component, a shift position detector that detects an effective shift position of an automatic transmission. A shift position switching unit switches the effective shift position of the automatic transmission. A parking switching unit mechanically locks the output shaft of the automatic transmission when the effective shift position in a parking position. A shift position switching controller, which is not energized when the engine is stopped, controls the shift position switching unit. A memory device memorizes the effective shift position at a timing when the shift position switching controller stops being energized. A vehicle-mounted component controller prohibits an operation of a vehicle-mounted component when the effective shift position in the memory device is not in the parking position while the current supply to the shift position switching controller is stopped.
摘要:
By utilizing a mechanical backlash generated between an electric actuator and a shift range switching mechanism, a specific region is obtained, in which a variation in the output shaft angle is relatively small with respect to a variation in rotor angle. In this specific range, an actual shift range position is calculated, whereby the rotor angle that the motor controller recognizes is corrected so as to relate the actual shift range position. A deviation between the rotor angle and the actual shift range is corrected, so that the shift range switching is precisely performed.
摘要:
An SBW storage of an SBW controller stores a rotational angular position of an output shaft of an electric actuator. When the SBW controller is restarted due to instantaneous power interruption, the SBW controller maintains and uses the current angular position of the output shaft, which is stored in the SBW storage device, as a latest rotational angular position of the output shaft that is used to drive a shift range change mechanism upon satisfaction of the following conditions: the electric motor has not been driven before the instantaneous power interruption, and the current rotational angular position of the output shaft, which is stored in the SBW storage device, is not destroyed.
摘要:
A controller determines the state of the range detector on the basis of the detection signals detected by the range detector, then when the range detector is determined to be in an abnormal condition, the controller moves the shift-changing valve until the movement is inhibited by the restriction member, thereby establishes the position of one end, and controls the actuator with respect to the established one end position and on the basis of the amount of operation to move the shift-changing valve to the position corresponding to an instructed shift range. Even when the range detector is in an abnormal condition, it is possible to make a change to the shift range corresponding to a shift range changing command.
摘要:
A vehicle control system is disclosed. The vehicle control system includes a by-wire system with an actuator for changing vehicle conditions and a by-wire control circuit that electrically controls the actuator according to a command for changing the vehicle conditions by a vehicle passenger. The vehicle control system further includes a monitoring control device having a control circuit that is different from the by-wire control circuit and that monitors the by-wire system on the basis of monitoring information received from the by-wire system. The vehicle control system also includes an inhibiting device that inhibits the control of the actuator by the by-wire control circuit on receiving a control command from the monitoring control device when the monitoring control device confirms a fault of the by-wire system.
摘要:
A position shift control apparatus is provided which includes an electrical motor joined to an object through an output shaft and a torque transmission mechanism, a detent mechanism producing elastic pressure to hold the object at a target position, and a motor controller. When torque, which is created by the elastic pressure produced by the detent mechanism and acts on the output shaft during rotation of the motor, is opposite in orientation to that outputted by the motor, the motor controller determines the angular position of the motor, as sampled upon a change in an output from an output shaft position sensor, as a reference angular position of the motor for use in controlling the position of the motor, thereby resulting in a decrease in mechanical load on the detent mechanism and the torque transmission mechanism to ensure the durability and operation accuracy of the apparatus.