Abstract: A vehicle includes a starter used for starting an engine and including an actuator performing an engagement operation with a pinion gear and a motor rotating the pinion gear that are separately controllable. When starting the engine by the user's key operation, a start request signal caused by the key operation is delayed in a delay circuit to output a control signal for driving the motor. When restarting an engine after the engine is automatically stopped, a malfunction detection unit detects a malfunction in the delay circuit based on a control signal for driving the actuator and the control signal for driving the motor.

Abstract: A starter includes a pinion gear, an actuator for moving the pinion gear to a position where the pinion gear is engaged with a ring gear in a driven state, and a motor for rotating the pinion gear. An ECU includes a rotation mode in which the motor is driven before the actuator is driven and an engagement mode in which the actuator is driven before the motor is driven. In the engagement mode, the actuator is driven after lapse of a predetermined first time period since a decision to start an engine was made, and the motor is driven after lapse of a second time period longer than the first time period since the decision to start the engine was made. In the rotation mode, the motor is driven after lapse of the second time period since a decision to start the engine was made.

Abstract: A device for starting an engine includes a starter for starting the engine and an ECU. The starter includes a pinion gear for engagement with a ring gear for cranking the engine, an actuator structured to engage the pinion gear with a ring gear, and a motor for rotating the pinion gear. The actuator and the motor can individually be controlled. The ECU has a rotation mode for driving the motor prior to drive of the actuator and an engagement mode for causing the actuator to engage the pinion gear and the ring gear with each other prior to drive of the motor. When a request to start the engine is made, the ECU switches selection between the rotation mode and the engagement mode based on a rotation speed of the engine and a reduction rate in rotation speed of the engine.

Abstract: When a predetermined stop condition is satisfied, an engine is stopped. When a predetermined start condition is satisfied, a motor in a starter is driven and the engine is started. When a voltage of a battery for supplying electric power to the motor becomes lower than a threshold value while the motor is driven, stoppage of the engine is thereafter restricted. The threshold value increases as an engine rotation speed at the time when the motor is driven increases.

Abstract: A starter can independently drive an actuator for moving a pinion gear to a position where the pinion gear is engaged with a ring gear and a motor for rotating the pinion gear. When synchronization between the ring gear and the pinion gear is restricted, a rotation mode in which the pinion gear is rotated before the actuator is driven is restricted.

Abstract: A starter includes a pinion gear that can be engaged with a ring gear provided around an outer circumference of a flywheel or a drive plate of an engine, an actuator for moving the pinion gear to a position of engagement with the ring gear in a driven state, a helical spline for rotating the pinion gear in a reverse direction while the pinion gear moves toward the ring gear, and a motor for rotating the pinion gear. The actuator and the motor are individually controlled. After the actuator was driven and before the motor is driven, drive of the actuator is stopped.

Abstract: A starter can independently drive an actuator for moving a pinion gear to a position where the pinion gear is engaged with a ring gear and a motor for rotating the pinion gear. When synchronization between the ring gear and the pinion gear is restricted, a rotation mode in which the pinion gear is rotated before the actuator is driven is restricted.

Abstract: A vehicle includes a starter used for starting an engine and including an actuator performing an engagement operation with a pinion gear and a motor rotating the pinion gear that are separately controllable. When starting the engine by the user's key operation, a start request signal caused by the key operation is delayed in a delay circuit to output a control signal for driving the motor. When restarting an engine after the engine is automatically stopped, a malfunction detection unit detects a malfunction in the delay circuit based on a control signal for driving the actuator and the control signal for driving the motor.

Abstract: An ECU executes a program including the steps of carrying out fluctuation suppression control in a case where a request to start an engine has been made, a rotation mode has been selected, and a motor is being driven and canceling fluctuation suppression control in a case where a full drive mode has been selected and engagement between a pinion gear and a ring gear has been completed.

Abstract: A starter includes a pinion gear that can be engaged with a ring gear coupled to a crankshaft of an engine, an actuator to move the pinion gear to a position where the pinion gear is engaged with the ring gear in a driven state, and a motor to rotate the pinion gear. When the engine is started in response to a driver's start intention, any mode of an engagement mode in which the actuator causes the pinion gear to engage with the ring gear before the motor is driven and a rotation mode in which the motor is driven before the actuator is driven is selected. When the engine is started not in response to a driver's start intention, the engagement mode is selected.

Abstract: An ECU executes a program including the steps of selecting a rotation mode in a case where a request to start an engine has been made and an engine rotation speed is equal to or lower than ?2 and greater than ?1, selecting a full drive mode, stopping a motor and an actuator in a case where engagement between a pinion gear of a starter and a ring gear of the engine is defective, and selecting an engagement mode in a case where a motor rotation speed Nm is equal to or lower than A and an engine rotation speed Ne is equal to or lower than.

Abstract: When a predetermined stop condition is satisfied, an engine is stopped. When a predetermined start condition is satisfied, a motor in a starter is driven and the engine is started. When a voltage of a battery for supplying electric power to the motor becomes lower than a threshold value while the motor is driven, stoppage of the engine is thereafter restricted. The threshold value increases as an engine rotation speed at the time when the motor is driven increases.

Abstract: A starter includes a pinion gear that can be engaged with a ring gear coupled to a crankshaft of an engine, an actuator to move the pinion gear to a position where the pinion gear is engaged with the ring gear in a driven state, and a motor to rotate the pinion gear. When the engine is started in response to a driver's start intention, any mode of an engagement mode in which the actuator causes the pinion gear to engage with the ring gear before the motor is driven and a rotation mode in which the motor is driven before the actuator is driven is selected. When the engine is started not in response to a driver's start intention, the engagement mode is selected.

Abstract: A starter includes a pinion gear, an actuator for moving the pinion gear to a position where the pinion gear is engaged with a ring gear in a driven state, and a motor for rotating the pinion gear. An ECU includes a rotation mode in which the motor is driven before the actuator is driven and an engagement mode in which the actuator is driven before the motor is driven. In the engagement mode, the actuator is driven after lapse of a predetermined first time period since a decision to start an engine was made, and the motor is driven after lapse of a second time period longer than the first time period since the decision to start the engine was made. In the rotation mode, the motor is driven after lapse of the second time period since a decision to start the engine was made.

Abstract: A starter includes a pinion gear that can be engaged with a ring gear provided around an outer circumference of a flywheel or a drive plate of an engine, an actuator for moving the pinion gear to a position of engagement with the ring gear in a driven state, a helical spline for rotating the pinion gear in a reverse direction while the pinion gear moves toward the ring gear, and a motor for rotating the pinion gear. The actuator and the motor are individually controlled. After the actuator was driven and before the motor is driven, drive of the actuator is stopped.

Abstract: A device for starting an engine includes a starter for starting the engine and an ECU for controlling the starter. The starter includes a pinion gear structured to engage with a ring gear coupled to a crankshaft of the engine, an actuator for moving the pinion gear to an engagement position with the ring gear, and a motor for rotating the pinion gear. The ECU can individually control each of the actuator and the motor. The ECU holds such a state that the motor is stopped and the actuator is driven during a stand-by period until a reference condition is satisfied after completion of start of the engine. Thus, when the engine stopped immediately after start, the engine can quickly be re-started.

Abstract: An ECU executes a program including the steps of carrying out fluctuation suppression control in a case where a request to start an engine has been made, a rotation mode has been selected, and a motor is being driven and canceling fluctuation suppression control in a case where a full drive mode has been selected and engagement between a pinion gear and a ring gear has been completed.

Abstract: In a vehicle including a starter for starting an engine, capable of controlling an actuator for an engagement operation of a pinion gear and a motor for rotating the pinion gear individually, an ECU drives the actuator when the rotational speed NE of the engine becomes lower than a reference rotational speed NEston, and drives the motor when a predetermined period has elapsed since the driving of the actuator is initiated. When the rotational speed exceeds reference rotational speed again during the predetermined period, the ECU delays the driving of the motor until the rotational speed becomes lower than reference rotational speed again, and a predetermined period has elapsed.

Abstract: A device for starting an engine includes a starter for starting the engine and an ECU. The starter includes a pinion gear for engagement with a ring gear for cranking the engine, an actuator structured to engage the pinion gear with a ring gear, and a motor for rotating the pinion gear. The actuator and the motor can individually be controlled. The ECU has a rotation mode for driving the motor prior to drive of the actuator and an engagement mode for causing the actuator to engage the pinion gear and the ring gear with each other prior to drive of the motor. When a request to start the engine is made, the ECU switches selection between the rotation mode and the engagement mode based on a rotation speed of the engine and a reduction rate in rotation speed of the engine.

Abstract: An ECU executes a program including the steps of selecting an engagement mode when start of an engine is requested and when an engine speed is smaller than ?1; selecting a full drive mode; selecting a stand-by mode when start of the engine is completed; selecting a rotation mode when the engine speed is equal to or smaller than ?2 and greater than ?1, and selecting the full drive mode when fluctuation is predicted even when a difference Ndiff between rotation of a ring gear and rotation of a pinion gear is greater than a predetermined value ?2.