110results about How to "Improve reliable operation" patented technology

A pick-up device for picking up a tubular knitted article from a circular knitting machine for hosiery or the like and for transferring the article to a unit adapted to perform additional work thereon. The device comprises an annular pick-up body (11) that supports pick-up members (29) that can slide with respect to the pick-up body (11) along radial directions. The pick-up body (11) can be arranged coaxially around the needle cylinder (121) of a circular knitting machine (100) for hosiery or the like so that each one of the pick-up members (29) faces laterally a needle (123) of the machine (100). The end of each one of the pick-up members (29) that is directed toward the axis of the pick-up body (11) has a seat (30) that can engage a region of the stem (123b) of the needle (123) that is arranged proximate to the latch ( 123d) of the needle ( 123) on the opposite side with respect to the head (123 c) of the needle (123). The device comprises actuation means formed by elastic means (33) that act on the pick-up members (29) for their sliding toward the axis (11a) of the pick-up body (11) and radial pushers (34) that act on the pick-up members (29) for their sliding away from the axis (11 a) of the pick-up body ( 11) in contrast with the action of the elastic means (33).

The invention discloses an automatic management system for a lithium ion storage battery pack power supply sub system for a satellite. The automatic management system comprises an in-orbit management module, an emergency protection module and a lithium ion storage battery pack in-orbit different stage management mode method; the in-orbit management module is used for preventing the lithium ion storage battery pack from being over-charged; the emergency protection module is used for preventing the lithium ion storage battery pack from being over-discharged; and the use and management mode method for the lithium ion storage battery pack in-orbit different stages is used for prolonging the in-orbit running service life of the lithium ion storage battery pack. The in-orbit management and control for the satellite lithium ion storage battery pack power supply sub system is realized, so that the reliability of the system is greatly improved fundamentally.

The inverter device contains the following structure: an inverter circuit which has upper-arm switching elements that are connected on a positive side of a DC power source and lower-arm switching elements that are connected on a negative side of the DC power source; a current sensor that detects current flowing between the DC power source and the inverter circuit; and a control circuit that controls the inverter circuit by a PWM driving so that the inverter circuit outputs AC current to the motor. The control circuit provides a carrier cycle with a first correction and provides the successive cycle with a second correction, by which the current sensor can detect phase current of the motor. A ripple current caused by the first correction and a ripple current caused by the second correction are opposite in polarity.

A passenger protection system includes acceleration sensors as well as a passenger protection ECU. At least one acceleration sensor is provided on one of the width-direction sides of the vehicle and at least one accelerator sensor is provided on the other width-direction side of the vehicle. Based on signals generated by the acceleration sensors the passenger protection ECU determines occurrence of a collision, and drives passenger protection apparatus accordingly. In the event of a collision, the passenger protection ECU performs an AND operation on a signal from the acceleration sensor on the colliding one of the width-direction sides of the vehicle, and a signal from the acceleration sensor on the other width-direction side not experiencing the collision, to drive the passenger protection apparatus.

A roller board device like a skateboard or scooter operated by a user with one or more user-maneuverable wheel assemblies that are automatically returned to their “true north” position is provided according to the invention. The roller board device comprises an elongated deck, at least one wheel assembly, a rotation assembly operatively engaging and extending through the opening in the deck, one end of the rotation assembly being connected to the wheel assembly positioned below the deck, the other end of the rotation assembly being connected to a user interface member extending upward beyond the top surface of the deck, and a north-seeking return mechanism secured to the deck containing an engagement member movable along a linear axis within a housing and engaging a spring disposed between the engagement member and an interior wall of the housing, the rotation assembly operatively connected to the engagement member to convert rotational movement of the rotation member into linear movement of the engagement member. When the user applies rotational force to the user engagement member to turn it to the left or right, the rotation assembly and wheel assembly are rotated in the same direction and degree to allow the roller board device to be turned, the rotated rotation assembly interacting with the engagement member of the north-seeking return mechanism to move the engagement member along its linear axis to a retracted position to compress the spring. But, when the user releases the rotational force upon the user interface member, the spring extends from its compressed state to its elongated state to move the engagement member of the north-seeking return mechanism back along the linear axis from its retracted position to its standby position, counter interacting with the rotation assembly to return the wheel assembly of the roller board device to its true north position.