1929 results about "Hybrid drive" patented technology

A plug-in hybrid propulsion system includes a fast energy storage device that preserves battery life, where the energy storage elements of the hybrid drive train may be charged with externally supplied electricity as well as energy from the engine or regenerative braking. Electronic switches, passive electronics, an enclosure, controller circuitry, and / or control algorithms are used to manage the flow of power between a fuel powered engine, a battery, a fast energy storage system, traction motors, a charger, ancillary systems, an electrical distribution system, and / or a drive train.

An electrically variable transmission has a pair of clutches and a first mode when the first clutch is applied and the second clutch released, a second mode when the second clutch is applied and the first clutch released, and a fixed-ratio mode when both clutches are applied. Upshifts and downshifts out of fixed-ratio are accomplished in accordance with a control based upon shift confidence factors determined in accordance with proportional and derivative input speed error quantities. Additional authority limits are placed upon the shift confidence factors in accordance with output speed derivative quantities. Additional override downshift control is provided in accordance with additional input speed condition determinations.

This invention relates to plug-in hybrid propulsion systems where the energy storage element of the hybrid drive train may be charged with externally supplied electricity as well as energy from the engine or regenerative braking. The invention is a plug-in hybrid system with a fast energy storage and delivery system. In a preferred embodiment the invention comprises a fuel powered engine, a battery, a fast energy storage system, power converters, controllers, drive motors, an electrical distribution system, and a drive train. Additionally, the invention relates to plug-in hybrids that provide services to the electrical utility when the vehicle is connected to the utility grid.

A hybrid drive controller maintains a deferred trim list that holds a subset of logical addresses of writes performed on magnetic disks. For example, if a write command is issued to an LBA space that overlaps a portion stored in flash memory and the write is to be performed on the magnetic disks, the trimming of the overlapping portion in the flash memory will be deferred. Instead of trimming, the logical addresses associated with the overlapping portion will be added to the deferred trim list and trimming of the logical addresses in the deferred trim list will be carried out at a later time, asynchronous to the write that caused them to be added to the list.

A hybrid power plant (5) for an aircraft (1) comprises at least: a hybrid drive system (37) having a main on-board electricity network (16) and an auxiliary electricity network (34); and a selective adaptation interface (38) arranged to enable electrical energy to be exchanged selectively between the main and auxiliary electricity networks (16; 34). At least one engine and a hybrid drive auxiliary electrical machine (7, 31) are mechanically connected to a transmission (8); said machine (7) being electrically connected to at least one auxiliary electrical bus (36) in parallel with at least one auxiliary device for delivering electric charge.

A hybrid drive arrangement for a motor vehicle including an internal combustion engine (1), which is connected or can be connected in a wheel-driving manner, via a first torque transmission path (11, 13), to a driving wheel (15) of the motor vehicle. An electric machine (19), which is operable at least as a motor, is fed from an electrical energy source (7, 29) of the motor vehicle and is connected or can be connected in a wheel-driving manner, via a second torque transmission path (21, 23, 13), to the driving wheel (15). Arranged in the first and / or the second torque transmission path are coupling elements (11, 23) which, in a first operating state, permit the driving of the motor vehicle by the wheel-driving torque of the electric machine (19), operated as a motor, without mechanical torque support from the internal combustion engine (1), and which, in a second operating state, permit the driving of the motor vehicle by the internal combustion engine (1), without mechanical torque support from the electric machine (19). Depending on the driving speed of the motor vehicle, an electronic driving control system (31) activates the first operating state, at least in a first range of driving speeds including standstill of the vehicle, if the driving speed is less than a predetermined speed limit, and activates the second operating state, at least in a second range including the maximum speed of the vehicle, if the driving speed is greater.

A data logging unit configured for installation in a hybrid vehicle communicates with a user device configured to receive data from the data logging unit and to display selected portions of the data to a user for identification of potential vehicle faults associated with vehicle events reported by the vehicle's driver. The data logging unit has a data logger which communicates with hybrid drive system and other vehicle components to receive hybrid drive system data, and with a vehicle position sensor which detects location to receive vehicle location data. A data log processing module correlates location data with the corresponding vehicle data, and creates a correlated log of drive system data and associated vehicle location information, to allow identification of vehicle data within an event window based on vehicle location at the time of a reported event. Accordingly, a user may make a geographical request and the system will report vehicle data corresponding to the geographical request.

A non-volatile storage system comprises a hard disk drive (HDD) having a first capacity for storing information therein in a plurality of blocks. The storage system also comprises a non-volatile solid state memory (SSD) having a second capacity, less than the first capacity, for storing information therein. Finally, the storage system comprises a controller having a volatile memory and for controlling the read operation of the HDD and the read / write operation of the SSD. The controller stores in the volatile memory the address of read blocks from the HDD in a first period of time and determines a plurality of the most frequently read blocks in the first period of time, The controller then causes the SSD to store information from the most frequently read blocks from the HDD, and thereafter causes information to be read from the SSD when the storage system is requested to access information from the most frequently read blocks. The controller resets the identity of the most frequently read blocks in the volatile memory after a second period of time, where the second period of time is longer than said first period of time.

A display apparatus for a hybrid drive vehicle includes a screen that depicts a first icon, a second icon, and a third icon to represent energy sources and energy destinations. The appearance of the screen is variable to indicate the flow of energy between energy sources and energy destinations. In a preferred embodiment, changes in color, changes in icon size, and movement of elements are used to indicate energy flow.

A hybrid drive mechanism for a wheel-driven vehicle. The drive mechanism has an electromotor with a rotor and a stator as a first drive source, with a first speed and a first torque, and a pedal drive as a second drive source, with a second speed and a second torque. The stator of the electromotor is positioned on an axle or shaft of the drive train between the pedal crank and the drive wheel, preferably on a wheel axis, in such a way that it can rotate. The stator can be coupled mechanically with the second drive source so that the stator is driven by the second drive source, and the rotor of the electromotor has a speed which corresponds to the sum of the first speed of the first drive and the second speed of the second drive.

A hybrid vehicle drive control system selectively switches from an electric drive (EV) mode in which a first clutch is released and a second clutch is engaged, and a hybrid drive (HEV) mode in which both clutches are engaged. A slip control of the second clutch is executed when the first clutch is being connected to start the engine during switching from EV mode to HEV mode by controlling a torque transfer capacity of the second clutch to a required drive force, and by simultaneously increasing a motor / generator torque by an amount corresponding to a torque required to start the engine while maintaining a slipping state of the second clutch until connection of the first clutch is completed. Thus, a loss of torque is not felt by the driver and the shock is small when the engine is started during switching from EV mode to HEV mode.

A serial hybrid drive system for off-road utility vehicles and / or riding tractors including one or more electric motors (8, 8a, 8b) for driving the vehicle. The motors are connected to the driven wheels (11), with or without individual gear boxes 9a, 9b) or transmissions, to turn the wheels. The vehicle includes an electric generator (4) connected to the vehicle engine (2) for supplying power to a fast charging battery pack (6), which in turn feeds power to the motors. One or more motors may also be provided for operating accessory implements of the vehicle. These motors and vehicle generator receive operational instructions from one or more controllers (14, 16, 18), which may be programmed to adjust personality settings for the drive system.

The invention provides a parallel series type hybrid power driving system and a driving method, the engine of the driving system is connected coaxially with an ISG motor, the output shaft of the ISG motor is connected with a manual dry type clutch, the rear end of the clutch is connected with a manual gear box, the motor performs moment coupling by the coupling mechanism and the output shaft of the gear box. The driving method comprises a pure electric driving mode, a series connection driving mode, an engine driving mode, a parallel driving model, a walking vehicle charging mode, a parking charging mode and a regeneration brake energy feedback mode. The technical proposal keeps traditional vehicular structure at the max extent, and utilizes double-motor to perform optimization of working points of engine, so that the engine can run stably in high-efficiency low-emission area. The invention is particularly suitable for urban low-speed bus operation in working condition.

A hybrid drive system for aircraft, in particular helicopters, with at least one energy generating module having an internal combustion engine and a generator that can be powered by the latter to generate electrical energy, and at least one electric motor for powering a drive means of the aircraft.

The invention provides a hybrid power-driven system, comprising an engine and a dual clutch transmission connected with a crankshaft of the engine, wherein the dual clutch transmission comprises a first clutch, a second clutch and a transmission, the first clutch and the second clutch are effectively connected with the crankshaft of the engine, the transmission is provided with a first input shaft effectively connected with the first clutch, a second input shaft effectively connected with the second clutch, a group of gear sets for different gears and at least one output shaft, each gear set for one gear is at least provided with a fixed gear and a movable gear, the output shaft is connected with a differential mechanism, one end of the output shaft far way from the differential mechanism is connected with a driving motor, and the driving motor can directly drive the output shaft connected with the driving motor. According to the hybrid power-driven system provided by the invention, the driving motor is arranged on the output shaft, and motor arrangement is simpler. The invention also provides a vehicle provided with the hybrid power-driven system.

A power split hybrid wheel drive system of the present invention comprises a planetary gear train (16) coupled to the output shaft of a driving engine (12). A primary motor or generator (18) is coupled to an output shaft of the planetary gear train (16) for receiving power therefrom, and a secondary motor or generator (30, 32) is associated with each driven vehicle wheel (14) to provide an electrical power pathway. A mechanical differential gear train (20) is coupled between the output shaft of the planetary gear train (16) and each driven vehicle wheel; (14) to provide a mechanical power pathway, while a mechanical clutch (22) and brake system (24) is configured to regulate the mechanical power routed to the differential gear train (20). A control system (48) is included to regulate the flow of electrical power between the primary motor (18) and secondary motors or generators (30, 32).

A hybrid vehicle drive control system has a first clutch interposed between an engine and a motor / generator, a transmission including several gear position clutches arranged between the motor / generator and a drive wheel, and a controller. The controller selectively starts the engine using torque from the first clutch during a mode drive change from an electric drive mode to a hybrid drive mode. When an engine start command occurs during the drive mode change, the controller selects the engaged gear position clutch that has the maximum torque transfer capacity from the engaged clutches constituting a vehicle running gear occurring during an engine starting process as a second clutch to be controlled. Then the controller executes a slip control of the second clutch when the first clutch is being connected to start the engine during the mode change from the electric drive mode to the hybrid drive mode.

A hybrid drive and associated methods increase the rate at which data are transferred to a nonvolatile storage medium in the hybrid drive. By using a large nonvolatile solid state memory device as cache memory for a magnetic disk drive, a very large number of write commands can be cached and subsequently reordered and executed in an efficient manner. In addition, strategic selection and reordering of only a portion of the write commands stored in the nonvolatile solid state memory device increases efficiency of the reordering process.

A hybrid electro-hydraulic drive system is provided for a vehicle and comprises a hydraulic transmission including a first hydraulic machine and at least one second hydraulic machine drivingly connected to drive wheels of the motor vehicle for driving thereof, an electric motor / generator operatively connected to the first hydraulic machine, and at least one energy storage device operable to store and release a hydraulic fluid energy or an electrical energy. The second hydraulic machine is a reversible hydraulic pump / motor unit capable to function both as a hydraulic pump and a hydraulic motor. The energy storage device is operatively connected to either the hydraulic transmission or the electric motor / generator. In a retarding mode the hydraulic transmission and / or the electric motor / generator retard the vehicle, while in a driving mode they supply a supplementary power to the drive wheels to assist propulsion of the vehicle.

A method is provided to operate a non-volatile memory (NVM) in a hybrid drive mode in response to a user selection. To operate in hybrid drive mode, a computer operating system and a basic input / output system are preferably updated to identify the NVM as part of the same logical bootable disk, or logical hybrid drive, as a hard disk drive. Bootable disk sector and address mapping can be modified to reflect the addition or removal of the NVM. The NVM is preferably user-replaceable and upgradeable without opening the computer's casing. When the NVM includes more than one NVM module, a first NVM module can operate in hybrid disk mode while a second NVM module operates in a normal storage mode. Since no internal hardware modification is required, this approach can provide hybrid disk performance using conventional hardware, or to enhance performance of an existing hybrid drive.

A hybrid vehicle control apparatus is provided with a motor / generator arranged between an engine and a transmission, a first clutch disposed between the engine and the motor / generator, a second clutch disposed in a power train spanning from the motor / generator to a drive wheel, and a controller. The controller controls the engagement of the first and second clutches to select either an electric drive mode or a hybrid drive mode. The controller executes a rotational speed control of the motor / generator while in a coasting state with torque being transmitted through a one-way clutch of the transmission such that the rotational speed control increases an input rotational speed of the one-way clutch to a value closer to an output rotational speed of the one-way clutch with a difference between the input and output rotational speeds of the one-way clutch becoming equal to a target value.

An engine staring control apparatus of a hybrid drive system is arranged to increase the torque transmission capacity such that a cranking torque of an engine is compensated when the engine is started; to stop the increase of the torque transmission capacity when a revolution speed of an engine-side friction element of an engine clutch reaches a revolution speed at which the engine can start by itself; to hold a torque transmission capacity of the engine clutch after the stopping of the increase of the torque transmission capacity; and to stop the holding of the torque transmission capacity and to again increase the torque transmission capacity when the revolution speed of the engine-side friction element reaches the revolution speed of a transmission-side friction element.

A hybrid drive device including a drive device input shaft coupled to an engine, a rotary electrical machine, a transmission shifting and outputting rotary drive transferred from the rotary electrical machine or the drive device input shaft or the both of them, a transmission case accommodating the transmission, and a rotary electrical machine case having a joint surface joining with the transmission case, a step portion with a diameter which is reduced when seen from an input shaft input end side is provided in an inner peripheral portion of the rotary electrical machine case, and a partition wall supporting the rotary electrical machine from the input shaft input end side is fixed to the step portion.

The invention relates to a series-parallel hybrid-driven piezoelectric pump, and belongs to the fields of fluid transmission and control. Upper and lower pump bodies are connected through screws; 2 to 20 piezoelectric vibrators are connected between pump cavities of the two pump bodies in a pressed mode; valve sheets are adhered to the pump cavities of the upper and lower pump bodies and the inlets of valve cavities; the inlet of the upper pump body and the adjacent pump cavity, two adjacent pump cavities, and the valve cavities and the adjacent pump cavities are communicated through inter-cavity flow channels; the valve cavities are communicated with outlets; a series pump I is formed by the pump cavities and the piezoelectric vibrators; the inlet of the lower pump body and the adjacent pump cavity, two adjacent pump cavities, and the valve cavities and the adjacent pump cavities are communicated through inter-cavity flow channels; a series pump II is formed by the pump cavities and the piezoelectric vibrators; the inlets of the series pumps I and II are communicated; and the valve cavities of the series pumps I and II are communicated and communicated with the outlet on the upper valve body. The pump has the advantages that a series-parallel pump is formed by a plurality of piezoelectric vibrators of which the two sides drive fluid simultaneously, so that the pump is high in flow, pressure and energy efficiency, low in pulsation and suitable for constructing a piezoelectric hydraulic driver with high system back pressure.

An output of an internal combustion engine is transmitted to an output shaft by controlling a control motor to change a rotation speed output from the engine without speed steps via power distribution planetary gear. An output of a drive motor is input to the output shaft by changing the speed into two-step decelerated rotation by means of an automatic transmission. The transmission produces a desired torque by decelerating the speed by a large degree when a vehicle speed is low, and produces a desired number of revolutions by decelerating the speed by a small degree when the vehicle speed is high.

This invention is a system and a method that uses the braking resistor, commonly used and available in electrically or hybrid-electrically propelled vehicles, to limit the precharge current during the startup of a high power ultracapacitor pack energy storage device and / or safely and rapidly discharge an ultracapacitor pack for maintenance work or storage to lengthen the life of the individual ultracapacitor cells and, correspondingly, the whole pack. The use of the braking resistor for precharging an ultracapacitor energy storage pack is an effective and less expensive method compared to other methods such as a separate DC-to-DC converter. This method includes the control logic sequence to activate and deactivate switching devices that perform the connections for the charging and discharging current paths.