摘要:
A torsional vibration damping device that prevents an increase in an inertial torque due to resonance without reducing a mass of an inertial mass member. A torque of an engine (1) is delivered to a first rotary element (23) of a planetary unit (19). The torsional vibration damping device damps pulsation of the torque of the engine (1) to be delivered to the transmission (12) by an inertial torque generated by a rotation of the third rotary element (20) resulting from a relative rotation between the first rotary element (23) and the second rotary element (21) caused by the pulsation of the engine torque. The torsional vibration damping device comprises: a connection member (25) rotated integrally with the first rotary element (23); an intermediate member (26) rotated integrally with the second rotary element (21); an output member (30) delivering torque to the transmission (12); a first elastic member (27) connecting the connection member (25) to the intermediate member; and a second elastic member (29) connecting the intermediate member (26) to the output member (30).
摘要:
A sliding mode control apparatus. When displacing a controlled object to which an urging force is applied by an elastic member from one displacement end to the other displacement end, the control apparatus sets a switching hyperplane and controls the controlled object by using a sliding mode control in such a manner that a state quantity of the controlled object is converged on the switching hyperplane. In the sliding mode control, the control apparatus switches an operation mode for controlling the controlled object when the controlled object passes an operation switching point. The control apparatus detects disturbance in the sliding mode control and a change with time of the elastic member, and changes the operation switching point in accordance with both of the detected disturbance and the detected change with time.
摘要:
A torsional vibration damper (1) in which collision noise resulting from collision of a rolling member (4) against a rotary member (2) is reduced. The torsional vibration damper (1) comprises a restriction mechanism (6a, 12a) that establishes a restriction force in a direction to restrict the relative rotation between the rotary member (2) and the inertia body (3), when the rolling member (4) centrifugally pushed onto a raceway surface (14) is pushed radially inwardly by the raceway surface (14) toward a radially inner limit position (7) of a guide section (6).
摘要:
It is possible to suppress fluctuations of an air intake amount when the open degree of an air intake control valve is unknown. An engine (200) includes an impulse valve (224) common to all the cylinders arranged in the engine (200). The impulse valve (224) is arranged in a communicating tube (206) provided at the downstream side of a serge tank (205). An ECU (100) executes impulse valve drive control. In the control, the ECU (100) judges whether a rotation angle sensor (225) which detects the open degree of the impulse valve (224) has failed. If it is judged that the rotation angle sensor (225) has failed, the ECU (100) controls a drive motor (224C) and a drive circuit (224D) for driving a valve body so that a valve body (224A) of the impulse valve (224) rotates inside the communicating tube (206). Here, the rotor of the drive motor (224C) which defines the rotation speed of the valve body (224A) has an rpm which is set in accordance with the mechanical rpm NE of the engine (200).
摘要:
A mixing tank 21 and the like capable of mixing a light oil as a main fuel with water at a predetermined mixture ratio; an engine 100 to which a mixed fuel produced by mixing the light oil with water is fed from the mixing tank 21; and an ECU 17 controlling the mixture ratio of the mixed fuel to be a target mixture ratio based on a driving state of the engine 100 are provided. The ECU 17 controls the target mixture ratio based on a feeding period from the time when the mixed fuel is fed from the mixing tank 21 to the time when the mixed fuel arrives at the engine 100. The target mixture ratio is controlled based on the feeding period of the mixed fuel, whereby the mixed fuel mixed at a desired mixture ratio is supplied to the engine 100 at the timing suitable for a driving state of the engine 100.
摘要:
A torsional vibration damper (1) includes a planetary rotary unit (3) and an elastic body (8) that couples two rotary elements (4, 5, 7) of three rotary elements (4, 5, 7) so that the two rotary elements (4, 5, 7) can rotate relatively to each other. The torsional vibration damper (1) includes a shaft supporting member (15) by which a rotation center axis of at least any one rotary element (4, 5, 7) of the two rotary elements (4, 5, 7) and a rotation center axis of the rotary element (4, 5, 7) other than the planetary rotary unit (3) and the two rotary elements (4, 5, 7) are held on the same axis. The shaft supporting member (15) has a holding section (20) that is disposed in a position between fellow planetary rotary elements (6) and not making contact with the planetary rotary elements (6) and that fits with and thereby suppresses movement of the rotary element (4, 5, 7) other than the planetary rotary unit (3) and the two rotary elements (4, 5, 7) in the axial direction.
摘要:
A method of operating an internal combustion engine having an; electromagnetically driven intake valves for a vehicle. With the method, deviation of an opening operation of the electromagnetically driven intake valve in response to a command signal for opening the intake valve from a predetermined characteristic is detected, and at least one of parameters used for controlling operation of the internal combustion engine is corrected so as to reduce a change in an intake air charging state in which the internal combustion engine is charge with the intake air. A valve closing timing of the intake valve or a valve closing timing of the exhaust valve that cooperates with the intake valve may be used as parameters to be corrected.
摘要:
A hybrid vehicle having a pendulum damper in which resonance at around an idling speed of an engine can be prevented to improve N.V. performance. The hybrid vehicle Ve comprises an engine 1 and at least one motor 2. In the hybrid vehicle Ve, a power transmission path 12 is formed between the engine 1 and drive wheels 4. In the power transmission path 12, a pendulum damper 6 is disposed to suppress torsional vibrations, and a disconnecting clutch 5 is disposed to selectively interrupt power transmission between the engine 1 and the pendulum damper 6.