5 results about "Auxiliary power unit" patented technology

A hybrid electric propulsion system for powering a vehicle using a natural fuel engine and an electric motor. The hybrid electric vehicle is comprised of a drive train; an electric motor for driving the drive train; an auxiliary power unit (APU); an electric energy storage system electrically coupled to the electric motor; and wherein the auxiliary power unit and the electric energy storage system provide energy for powering the vehicle. An electric bus is directly connected to both the auxiliary power unit and the electric energy source and the voltage across the electric bus is substantially the same as the voltage across the electric energy source so that a change in voltage of the electric bus results in the same change to the voltage across the electric energy source. A power management controller is programmed to control output power of the power unit to maintain the energy storage system between a predetermined high voltage set-point and a predetermined low voltage set-point.

A windows-breaking emergency escape device which comprises a main body, a hammer and a supplementary power apparatus, wherein the hammer and the supplementary power apparatus are installed on the main body, the front end of the hammer extrudes from the surface of the main body, the improvement comprising that the supplementary power apparatus will reserve enough power in advance by less strength of a user—such as a female user, and to release the reserved power to drive the hammer to break the car window when a car accident happened, moreover, the main body of the device of the present invention further comprises a groove containing a cutter, the width of the groove is smaller than that of a child's finger so that it is safe for the user from being wounded due to carelessness.

The invention belongs to the field of aviation testing technology and relates to a performance testing method and testing hanger for a whole set of vibration isolator of an airplane APU (Auxiliary Power Unit). The testing method comprises the following steps: hanging the APU on the testing hanger; installing a testing sensor; and testing the performance of the whole set of vibration isolator. The testing hanger comprises a bottom frame made of hollow square steel, a rear vertical frame, a front vertical frame, inter-frame reinforcing ribs, a top longitudinal beam (4) and a support base fixed on the testing hanger. The performance testing method and the testing hanger can be used for testing the performance of the whole set of vibration isolator of the airplane APU in a simulated installing state and assessing the vibration isolating performance of the whole set of vibration isolator accurately, thereby laying down a basis for optimizing the installation structure of the APU.

An auxiliary power device of a bicycle includes a driving member and a base member provided at a first section and a second section of the bicycle respectively. The first section and the second section are two parts of the bicycle, which has a relative motion therebetween in cycling. An input member is provided to the base member to be driven by the driving member when the first section moves relative to the second section. The input member turns a power storage member to store a power. A control member is provided for manipulation to release the power stored in the power storage member for moving the bicycle forward.