307 results about "Motor–generator" patented technology

The invention discloses a slope type gravity energy storage system based on a multi-vehicle circulating chain and an energy storage and power generation method. The system comprises an upper storage yard, a lower storage yard and a mountain slope located between the upper storage yard and the lower storage yard, an annular conveying track is arranged on the surface of the mountain slope, the upper end of the annular conveying track extends to the upper storage yard, and the lower end of the annular conveying track extends to the lower storage yard; symmetrically-arranged conveying belts are arranged on the two sides of the annular conveying track located on the upper storage yard and the lower storage yard respectively, and a lifting platform is connected to the outer side of each conveying belt; a crane is arranged near the conveying belt; an annular conveying chain is arranged between the double annular conveying track rails, and a moving trolley used for loading heavy objects is connected to the annular conveying chain. The annular conveying chain is further connected with a motor generator set. The multiple moving trolleys are connected in series to circularly transport the heavy objects, the moving trolleys do not need to change the running state, the heavy objects can be transported between the mountain bottom and the mountain top, and the transport efficiency is improved.

To solve the problem that large commercial electric vehicles with range extenders require a large-capacity battery and a motor generator with high output power, which limits the number of passengers and loaded cargo, and generates large amounts of exhaust gas from the internal combustion engine of the power plant, a planned power generation and energy storage control technique is applied, in which, as a method for estimating the amount of power generation required during travel and the pre-travel power generation distance in a route plan of an electric vehicle with range extenders, assuming that travel from the starting point to the destination is carried out using exactly the energy stored in the battery, an absolute value in which a minimum storage requirement (SCL) of the battery has been deducted from a negative energy storage quantity (SOC) of the battery at the destination,as the amount of energy generation required during the journey, whereby a reduction in the installed secondary battery and the installed generator is preferably achieved by correcting the route plan during the journey.

The present disclosures relate to methods and systems for a hybrid powertrain. The hybrid powertrain system includes an integrated axle configured to provide mechanical power to a first pair of wheels, the integrated axle comprising a first motor-generator and a first drive axle such that the first motor-generator and at least a portion of the first drive axle are mechanically coupled to a common housing. The system also includes a second motor-generator configured to be mechanically coupled with an engine via a first clutch and mechanically coupled with a second drive axle via a second clutch, the second drive axle mechanically coupled with a second pair of wheels. A controller is electrically coupled with the first and second motor-generators, the engine, and the first and second clutches, the controller configured to enable a fully electric mode, a series hybrid mode, a parallel hybrid mode, and a regenerative mode of operation.

A hybrid-electric aircraft propulsion system includes a gas turbine engine and an electrical assembly. The gas turbine engine includes a first rotational assembly. The first rotational assembly is rotatable about a rotational axis of the gas turbine engine. The first rotational assembly includes a first shaft, a bladed first compressor rotor, and a bladed first turbine rotor. The first shaft interconnects the bladed first compressor rotor and the bladed first turbine rotor. The electrical assembly includes a first motor-generator, a first motor control unit, a motor-generator (MG) cooling system, and a motor control unit (MCU) cooling system. The first motor-generator is coupled to the first shaft. The first motor control unit is electrically connected to the first motor-generator. The MG cooling system is connected in fluid communication with the first motor-generator. The MCU cooling system is connected in fluid communication with the first motor control unit. The MCU cooling system is independent of the MG cooling system.

A method for harnessing wave energy includes providing a vehicle to a body of water, the vehicle. The method includes submerging the vehicle to a depth in the body of water. The method includes operating the motor-generator of the vehicle in the first quadrant of the motor-generator. The method includes detecting a phase of a wave in the body of water based information from the processor of the detected phase. The method includes orienting the vehicle to lag the phase of the wave based on the detected phase of the wave. The method includes synchronizing an inertial acceleration of the vehicle to movement of the wave. The method includes switching the motor-generator to the second quadrant for generation mode to convert energy from the movement of the wave to electrical energy. The method includes storing the energy from the wave in the rechargeable battery source.

The present invention involves method and system for contactless bidirectional transfer of power between DC source (3700) and rotor coils of electric motor-generator by simultaneous bimodal capacitive and inductive power transfer of high frequency power signals from resonators (3545) stationary with respect to the motor-generator stator to resonators (3585) on the motor-generator rotor according to an adjustable transfer mode ratio at a variable resonant power signal oscillation frequency. Power from DC source is converted into high frequency power signals by high frequency continuous auto-adjusting bimodal stator transmitter-receiver modules under control of systems controller (3572) and provided to corresponding one or more high frequency stator resonators. High frequency power signals received by high frequency rotor resonators are converted in corresponding high frequency auto-adjusting bimodal rotor transmitter-receiver modules to electrical signals to provide to drive circuitry of induction coils on rotor.

A travel control device for a hybrid vehicle includes: an acceleration control part for controlling a traveling motor generator or an engine based on a depression amount of an accelerator pedal; and a regenerative control part for controlling the traveling motor generator with a regenerative control intensity set by an operation part. The acceleration control part includes: an EV priority control portion for prioritizing EV traveling over engine traveling. The regenerative control part includes: a restriction portion for restricting or prohibiting regenerative braking; and a forced regeneration portion for performing regenerative braking on a driving wheel and rotationally driving a power generation motor generator by electricity generated in the traveling motor generator to rotationally drive an engine, if the regenerative braking intensity is increased by the operation part in a state where the restriction portion restricts or prohibits the regenerative braking. The acceleration control part deselects an EV priority mode if the regenerative braking intensity is increased by the operation part in a state where the EV priority mode is selected and acceptance of electricity to the driving battery is restricted.

A hybrid electric gas turbine engine two speed transmission for a low spool drive including an accessory gearbox in operative communication with a low speed spool motor-generator; a transmission in operative communication with the accessory gearbox and the low speed spool motor-generator; a low speed spool angled gearbox in operative communication with the transmission; and a low speed spool in operative communication with the low speed spool angled gearbox.

A power extraction system for a gas turbine engine can include a low spool transmission, a high spool transmission, a low spool motor-generator mechanically connected to the low spool transmission, a high spool motor-generator mechanically connected to the high spool transmission and electrically connected to the low spool motor-generator, and a controller in operable communication with the low spool motor-generator and the high spool motor-generator. The controller can be configured to command the high spool motor-generator to push power to the low spool motor-generator in response to a ratio of the fan inlet temperature to a combustor outlet temperature being less than a threshold fan-inlet-temperature-to-combustor-outlet-temperature ratio.

An environmental control system of an aircraft, having: a cooling circuit including: a sealed housing; a turbo-compressor sealed within the housing, wherein the turbo-compressor includes: a compressor fluidly coupled to the circuit; a turbine fluidly coupled to the circuit downstream of the compressor, wherein the turbine is a flash turbine; a shaft operably coupling the compressor and the turbine; and a motor generator operably coupled to the turbo-compressor and disposed within the housing.

A dynamoelectric machine including an inner cylindrical stator, an outer cylindrical stator, and a cylindrical rotor positioned radially between the inner cylindrical stator and the outer cylindrical stator, the cylindrical rotor being rotatable with respect to the inner and outer cylindrical stators. The cylindrical rotor includes at least one rotating conductor which includes a mixture of an electrically conducting material and a ferromagnetic material. The inner and outer cylindrical stators include at least one of (i) gradient magnetic field strength areas that vary in flux density longitudinally down along an axial direction of the dynamoelectric machine, (ii) different radial diameters of overlapping rotor and stator portions provided at different axial positions of the dynamoelectric machine, and (iii) electromagnets which are structured to be selectively energized based on a changing variable.

The invention discloses an asymmetric actuator electro-hydraulic control system and method. The asymmetric actuator electro-hydraulic control system comprises an energy supply and storage unit, a hydraulic control unit, a control unit and an asymmetric actuator. The energy supply and storage unit comprises a power battery unit, a high-voltage distributor, a motor controller and a motor generator which are electrically connected in sequence; the hydraulic control unit comprises a main pump motor, a volume compensation pump motor, an electro-hydraulic directional control valve, a holding valve, an oil tank and an energy accumulator, a port A1 of the main pump motor is connected with an oil inlet of the holding valve, an oil outlet of the holding valve is communicated with a port M of a rodless cavity of the asymmetric actuator, and a port B1 of the main pump motor is communicated with a port N of a rod cavity of the asymmetric actuator. The problem of system oscillation caused by the flow difference of the two cavities of the asymmetric actuator is effectively solved. The energy recovery unit can recover potential energy, and the endurance time of equipment is remarkably prolonged. The automatic switching function of the electro-hydraulic reversing valve effectively reduces the response time of the system so as to meet the high-frequency action requirement of engineering machinery.

A user may select a first drive mode or a second drive mode for a hybrid vehicle having the hybrid powertrain from a user interface. The hybrid powertrain may include: a motor-generator unit, a battery electrically connected to the motor-generator unit, an engine, a flywheel engageably connected to the engine and the motor-generator unit; and a transmission engageably connected to the flywheel and the motor-generator unit. The selected drive mode may be sent to a controller connected to the hybrid powertrain. The controller may divert energy from the flywheel based on the state of charge of the battery and the selection of either the first drive mode or the second drive mode. In the first drive mode, the controller diverts energy from the flywheel to the transmission, and in the second drive mode, the controller diverts energy from the flywheel to the motor-generator unit to charge the battery.

The system comprises a power generation system and a heat supply system, the power generation system comprises a boiler, a carbon dioxide turbine, a heat regenerator, a precooler, a compressor and a motor generator, an outlet of the boiler is connected with an inlet of the turbine, an outlet of the turbine is connected with a hot side inlet of the heat regenerator, and an outlet of the compressor is connected with a hot side inlet of the precooler. An outlet of the precooler is connected with an inlet of the compressor, an outlet of the compressor is connected with a cold-side inlet of the heat regenerator, a cold-side outlet of the heat regenerator is connected with an inlet of the boiler, and the compressor and the turbine are respectively connected with the motor generator. The heat supply requirement can be met, complete thermoelectric decoupling is achieved, and the flexibility of the supercritical carbon dioxide cycle generator set is fully exerted while stable heat supply is achieved.

A hybrid drive system (200) for a work machine (100) includes a drive system (202). The drive system (202) includes an engine (204) that generates a first energy supply. The drive system (202) also includes a generator (206) mechanically coupled with the engine (204) to drive the generator (206). The drive system (202) further includes a battery system (208) that generates a second energy supply. The drive system (202) includes a motor generator unit (210) mechanically coupled with the generator (206) to drive the generator (206). The motor generator unit (210) is driven by the battery system (208). The hybrid drive system (200) also includes a controller (216) communicably coupled with the drive system (202). The controller (216) is configured to control the drive system (202) to direct, towards one or more traction motors (110, 112) of the work machine (100), a portion of at least one of the first energy supply via the generator (206) and the second energy supply via the motor generator unit (210) and the generator (206).

A control device and a control method for a hybrid vehicle are provided. The control device is applied to a hybrid vehicle that is provided with an engine, a motor generator, and a clutch. A CPU of the control device executes first start processing in which, in a case where the engine is started in a situation in which an increase amount of a torque demand value is smaller than an increase amount determination value, combustion in the engine is started after the engine rotation speed is increased to a motor rotation speed by engaging the clutch. The CPU executes second start processing in which, in a case where the engine is started in a situation in which the increase amount of the torque demand value is equal to or greater than the increase amount determination value, combustion in the engine is started before the engine rotation speed reaches the motor rotation speed after the crankshaft of the engine starts rotating by engaging the clutch.

The application provides an oil hybrid vehicle and an oil hybrid power system of a walking engineering machine, and the system has an electrical type based on a motor generator, a hydraulic type based on a pump motor and a composite type based on a motor generator-pump motor for recovering walking braking energy, so that the braking energy can be recovered in a wide range and with high efficiency, and the braking energy recovery efficiency is improved; in a system driving condition, power is provided in multiple forms such as engine single driving, pump motor single driving, motor generator-pump motor single driving, engine-pump motor combined driving and engine-motor generator-pump motor combined driving, so that the use of the engine is reduced through multiple single driving modes, the engine can be stably operated in an economic condition for a long time through multiple combined driving modes, the fuel economy of the whole vehicle is improved, and the energy-saving and emission-reducing effect is remarkable.

Controller (200) for a hybrid vehicle, the hybrid vehicle comprising: a power distribution integration mechanism (40) comprising a ring gear (42) configured to work in a toothed manner with a driven gear (62), a sun gear (41) configured to rotate at a center of the ring gear (42), a planetary gear (43) located between the sun gear (41) and the ring gear (42) and configured to orbit the sun gear (41), and a planetary gear carrier (44) configured to rotate while the planetary gear (43) orbits; an internal combustion engine (10) comprising an output shaft (14) coupled to the planetary gear carrier (44); a first motor generator (71) arranged to operate in a toothed manner with the sun gear (41); a second motor generator (72) configured to operate in a toothed manner with the ring gear (42); a battery (77) connected to the first motor generator (71) and the second motor generator (72); and a battery controller (400) configured to calculate a state of charge (SOC) of the battery (77), an upper input limit (Win) of the battery (77), and an upper output limit (Wout) of the battery (77) using a voltage (VB) in the battery (77), a temperature (TB) of the battery (77), and a ratio of electric power in the first and second motor generators (71, 72), wherein the controller (200) comprises: an execution device (200a, 200b) configured to control the first motor generator (71) and the second motor generator (72) such that the electric power input to the battery (77) does not exceed the upper input limit value (Win) and an electric power output from the battery (77) does not exceed the upper output limit value (Wout), wherein the execution device (200a, 200b) is configured: controlling the engine (10) and the first motor generator (71) such that the engine speed (Ne) approaches a target engine speed, the target engine speed being set using a requested driving force; controlling the second motor generator (72) such that the requested driving force is achieved by power transmitted from the ring gear (42) to the driven wheel (62); performing a start to rotate the output shaft (14) using the first motor generator (71) in a state where a combustion operation of the internal combustion engine (10) is stopped, thereby causing a braking force generated by friction of the internal combustion engine (10) to act on the driven wheel (62); and to execute a valve opening limiting process that limits an increase in a throttle opening degree according to the upper input limit value (Win) when an increase request regarding the throttle opening degree is issued that is not based on an operation requesting a change in the braking force performed by the driver during the execution of the cranking.

To provide a control device of a working machine capable of increasing means for recovering regenerative electric power.SOLUTION: A work machine (10) includes at least one first motor generator (13,23) that performs driving and power generation, at least one driven unit (11,21) that is driven by the first motor generator, at least one second motor generator (42,52) that performs driving and power generation, and at least one work mechanism (41,51) that is driven by the second motor generator and performs work while changing a height. A control device (35) controls operations of the first motor generator and the second motor generator, and when causing the first motor generator to perform regenerative power generation by kinetic energy of the driven part, causes the second motor generator to be driven by regenerative power generated by the regenerative power generation to perform a regenerative operation of raising the work mechanism higher than a current height.SELECTED DRAWING: Figure 1

In the present invention, a vehicle control device and a vehicle can acquire a regenerative torque that accords with the total weight of the vehicle. This vehicle control device controls a vehicle equipped with a motor generator for generating a regenerative torque that contributes to deceleration of the vehicle, and comprises a total weight calculation unit that calculates a total vehicle weight including a load weight that is the weight of a load on the loading space of the vehicle, and a control unit that controls the motor generator to change the regenerative torque according to the calculated total vehicle weight.

The present application provides a power transmission apparatus for a hybrid vehicle, the power transmission apparatus for a hybrid vehicle including: an engine configured to generate power; an input connected with the engine and configured to provide two-speed power using different gear ratios; a first motor generator that is driven when power is applied; a first transmission coupled to the first motor generator, positioned parallel to the input and configured to transmit power to the input; the output end is connected with the input end; a second motor generator that is driven when power is applied; a second transmission connected with the second motor generator, positioned parallel to the output and configured to transmit power to the output; and a differential engaged with the output end and configured to provide power to wheels. According to the present disclosure, an input connected to an engine is constantly connected with a first motor generator to transmit rotational force, and optionally connected with an output to transmit rotational force.

A process to control a drive assembly includes the steps of providing a mathematical model associating a first quantity indicative of a torque delivered by a motor-generator with a second quantity indicative of a linear acceleration of a wheel hub unit, which receives the torque, acquiring a first signal indicative of the second quantity, determining a target signal of the first quantity by means of the mathematical model based on the acquired first signal, so that the torque indicated by the target signal involves at least a decrease in a difference between the second quantity and a reference, and controlling the motor-generator according to the determined target signal.

The utility model provides a cold and hot electric energy storage system based on compressed air, which comprises a motor generator, a compressor, an expansion machine, an energy storage loop and an energy release loop, the motor generator, the compressor and the expansion machine are sequentially connected, and the energy storage loop and the energy release loop are formed by the motor generator, the compressor and the expansion machine. An inlet of the medium-temperature heat exchanger is communicated with an exhaust port of the compressor, the energy release loop comprises a heat regenerator first inlet, a high-temperature heat exchanger, the expansion machine, a heat regenerator second inlet and the medium-temperature heat exchanger which are communicated in sequence, the second low-temperature heat exchanger provides a heat exchange medium for the cooler, and a heat exchange medium of the high-temperature heat exchanger is fused salt. And an electric heating device is arranged in the fused salt storage tank. The defects that in the prior art, compressed air storage limitation is large, and the flywheel energy storage capacity is relatively small can be overcome.

An energy storage system (1), which comprises a weight (2) hanging from a cable (3, 10) connected to a first rotation shaft (5) mechanically coupled to a second rotation shaft (6) of a motor-generator assembly (7) connected to the power grid. When there is a surplus of electrical energy in the grid, the motor-generator (7) consumes energy, operating as a motor to rotate the first shaft (5) in a winding direction of the cable (3, 10), whereas, when there is a shortage of electrical energy in the grid, the motor-generator (7) supplies energy, operating as a generator utilising the rotation of the first shaft (5) in an unwinding direction of the cable (3, 10) when the free fall of the weight (2) is allowed. When the weight (3) is displaced immersed in water, in addition a compressed-air system can be utilised to modify the buoyancy of the weight.

The present application relates to a wheel-driven track-type gravity flow energy storage system and an energy storage method, wherein the wheel-driven track-type gravity flow energy storage system includes a dual-circulation bearing mechanism, a dual-circulation traction mechanism and a dual-wheel drive mechanism; the dual-circulation bearing mechanism includes two bearing rails, the dual-circulation traction mechanism includes two traction ropes, and the dual-wheel drive mechanism includes two parallel and vertically installed drive wheels, the traction ropes are wrapped around the drive wheels and continuously run under the drive wheels; a plurality of carrying mechanisms are arranged between the bearing rails, and the traction ropes pull and drive the carrying mechanisms to run continuously, and the carrying mechanisms are used to carry energy storage blocks as energy storage carriers; the driving wheels are connected to electric generators; the electric generators are used to drive the driving wheels to actively rotate, forming a continuous gravity flow by continuously lifting the energy storage blocks; and the driving wheels are driven to rotate by continuously descending the energy storage blocks, so as to convert gravitational potential energy into electrical energy of the electric generators to form a continuous energy flow.

A hydroelectric energy harvesting system includes: a hydraulic turbine including: a housing having a fluid inlet fitting and a fluid outlet fitting disposed thereon; a plurality of blades arranged circumferentially around the disc and adapted to rotate within the housing; and a gear train rotatably engaged with the disc and adapted to multiply rotation of the hydraulic turbine. A mechanical flywheel is rotatably coupled to the gear train output and is adapted to store kinetic energy. An electromagnetic clutch is coupled to the mechanical flywheel to selectively transfer rotational motion from the flywheel to a motor generator coupled to the mechanical flywheel. The system is configured for inline installation into a pressurized fluid system such that dispensing fluid from the system causes fluid to flow under pressure through the turbine and rotate the blades. The system multiplies the rotation and transmits it to the motor generator to generate electrical power for collection.

The invention provides a control method, a control device, and a storage medium for appropriately deriving a saturation temperature of a power conversion device and a loss at the time of the saturation temperature. The control device is provided with: a loss characteristic derivation unit that derives, on the basis of the operating condition of the first motor generator, a loss characteristic indicating the loss of the power conversion device at each temperature; a thermal resistance derivation unit that derives a thermal resistance of the power conversion device on the basis of a cooling condition of the cooling device; a thermal resistance characteristic deriving unit that derives a thermal resistance characteristic of the power conversion device on the basis of the loss characteristic and the thermal resistance; a saturation temperature / loss derivation unit at saturation temperature deriving the saturation temperature of the power conversion device and the loss at saturation temperature on the basis of the loss characteristic and the thermal resistance characteristic; and a vehicle control unit that controls the vehicle on the basis of the saturation temperature and the loss at the saturation temperature.

A crusher includes an internal combustion engine, a crusher unit and a drive train connecting the internal combustion engine and the crusher unit. The drive train includes a motor coupling, a crusher unit coupling and a motor generator. The motor generator includes a motor rotor and a motor stator. The motor rotor includes a motor generator shaft coupled to both an output end of the motor coupling and an input end of the crusher unit coupling in a rotationally fixed manner. The motor generator has a motor mode of operation in which the motor generator provides mechanical work for driving the crusher unit. The motor generator has a generator mode of operation in which the motor generator is driven by the internal combustion engine to generate electrical power.

To miniaturize a hybrid air conditioning system.SOLUTION: A hybrid air-conditioning system includes an engine 20, a motor generator 21, compressors 22a, 22b for circulating a refrigerant in a refrigerant circuit, an MG side power transmission mechanism 61 configured to transmit a driving force between the engine 20 and the motor generator 21, and a CP side power transmission mechanism 62 configured to transmit the driving force from the engine to the compressors 22a, 22b. The motor generator and the MG side power transmission mechanism are arranged on one side in a direction parallel to a power shaft 201 of the engine, and the compressors 22a, 22b and the CP side power transmission mechanism are arranged on one side opposite to the one side of the engine.SELECTED DRAWING: Figure 2

Provided is a vehicle power supply device that reduces the cost of a vehicle power supply device. A vehicle power supply device (10) mounted on a vehicle has: a battery pack (11) that includes a battery stack (A2) and a battery stack (B2); a motor generator (21) connected to the battery pack (11) via an inverter (20); an electrical device group (24) connected to the battery pack (11) via a converter (22); a switching switch (SW3a, SW3b) controlled to connect the battery stack (A2) and the inverter (20) to each other and to connect the battery stack (A2) and the converter (22) to each other; and a switching switch (SW4a, SW4b) controlled to connect the battery stack (B2) and the inverter (20) to each other and to connect the battery stack (B2) and the converter (22) to each other.