112 results about "Motor–generator" patented technology

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.

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.

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.

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.

The present invention provides an exhaust gas purification system equipped with an electrically heated catalyst that can reduce the power consumption of the electrically heated catalyst and prevent the exhaust pipe from becoming blocked due to the freezing of the on / off valve. [Solution] When the vehicle is stopped and the engine 10 is stopped, the ECU 81 of the exhaust gas purification device 1 drives the first motor generator 11 to motorize the engine 10 when closing the first on-off valve 141 and the second on-off valve 142, to discharge the combustion gases remaining in the engine 10 and the exhaust pipe 118 and replace them with fresh air. Then, it closes the second on-off valve 142 located upstream of the electric heated catalyst 140 to raise the electric heated catalyst 140 to a first target temperature. After that, when the temperature of the electric heated catalyst 140 reaches the first target temperature, it stops the power supply to the electric heated catalyst 140 and closes the first on-off valve 141 located downstream of the electric heated catalyst 140.

To enable the reduction of NOx in the exhaust gas flowing through the exhaust passage by a catalyst after the fuel cut-off has ended and fuel injection in the internal combustion engine has resumed. [Solution] When deceleration of the vehicle 10 is required, the control device 70 controls the internal combustion engine 40 and a plurality of motor generators 31, 32 to perform a deceleration process that causes deceleration of the vehicle 10. The deceleration process includes a first deceleration process that includes generating regenerative braking force, fuel cut, and motoring, and a second deceleration process that generates regenerative braking force so that the deceleration is smaller than when the first deceleration process is performed, while prohibiting motoring and fuel cut. The first deceleration process is selected when the charge capacity of the battery 23 is below a threshold and the NOx reduction capacity of the catalyst 48 is not low, and the second deceleration process is selected when the NOx reduction capacity of the catalyst 48 is low.

The present application aims to improve the temperature raising speed of a battery in a low temperature environment. A thermal management system for a vehicle includes a heating circuit, a refrigeration circuit, a battery oil circuit that circulates insulating oil to cool a battery, a motor oil circuit that circulates cooling oil of a motor generator, a first switching circuit that switches between thermal connection and disconnection between the heating circuit and the battery oil circuit, and a second switching circuit that switches between thermal connection and disconnection between the motor oil circuit and the battery oil circuit. When the vehicle is driven by the motor generator, the first switching circuit thermally disconnects the heating circuit from the battery oil circuit, and the second switching circuit thermally connects the motor oil circuit to the battery oil circuit. When the vehicle is stopped, the first switching circuit thermally connects the heating circuit to the battery oil circuit, and the second switching circuit thermally disconnects the motor oil circuit from the battery oil circuit.

A power system (110) includes a mechanical module (120) having an engine (122), a transmission (124), a cooling unit, and a motor-generator unit (128). The power system (110) includes a frame (150) connected to the mechanical module (120) and removably connectable to a mount (140) within a vehicle, such that the frame (150) and the mechanical module (120) are removable from the vehicle. The power system (110) includes an electrical module (130) having one or more batteries (132), a thermal management system (134), and one or more power electronics (136). The power system (110) includes a housing (156) which at least partially supports the electrical module (130). The housing (156) includes feet (158) that are releasably insertable into cleats (162) connected to the vehicle, such that the housing (156) and the electrical module (130) are separately removable from the vehicle.

The washer nozzles are defrosted using a simple configuration. [Solution] The washer nozzle defrosting device comprises an inverter connected to a battery that supplies power to a motor generator, a washer nozzle that sprays washer fluid, a vibration element provided in contact with the washer nozzle and that generates ultrasonic vibrations, wiring connecting the inverter and the vibration element, and a control circuit that controls the inverter.

To provide a drive unit arrangement structure that can efficiently cool a power control device positioned above a rotating electric machine. [Solution] The drive unit 5 has an arrangement structure that includes a motor generator, an inverter 6 provided above the motor generator and controlling the power supplied to the motor generator, and a drive case 8 housing the motor generator and the inverter 6, and is positioned below the floor panel of the vehicle 1, and a cross member 3 positioned in front of the drive unit 5 and extending in the vehicle width direction, and the drive unit 5 is elastically supported by the cross member 3 by a front mounting device 10. The drive unit 5 is positioned in a forward-tilted state such that the upper front end 8a of the drive case 8 is located below the lower surface of the cross member 3, and the upper rear end 8b of the drive case 8 is located above the lower surface 3a of the cross member 3.

The application provides an electro-hydraulic composite recycling integrated hoist system, comprising: an assembly controller, a transmission assembly, a first electric drive assembly, a second electric drive assembly, a hydraulic drive assembly, a sensing assembly, an electric control handle, and a load arranged on the hoist reducer; the system adopts an electro-hydraulic composite drive system, uses a power battery as a power source of the hoist system to meet the national energy-saving and emission-reducing development requirements, simultaneously uses a motor to drive a variable hydraulic pump or uses an accumulator to complete power input of the variable hydraulic pump motor, and power output of the variable hydraulic pump motor and power output of a motor generator are coupled to realize electro-hydraulic composite drive hoisting; the electro-hydraulic composite drive hoist system utilizes high power density output of the variable hydraulic pump motor in the hydraulic power system, utilizes high energy density of the power battery and good control characteristics of the motor generator in the electric power system, and can better control lifting movement of the hoist drive system.

Provided is a power transmission device for a hybrid vehicle including an engine configured to generate power, an input connected with the engine and configured to provide three-speed power with different gear ratios, a first motor generator driven when power is applied, a first transmission connected with the first motor generator, positioned parallel to the input, and configured to transmit power to the input, an output optionally engaged with the input, a second motor generator 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 and configured to provide power to wheels.

A control device (50) of a motor generator (42) connected to an internal combustion engine (41) includes an estimation section (52) that estimates an estimated value of a torque ripple of the internal combustion engine, i.e., an estimated torque ripple, and a control section (53) that controls the motor generator to reduce generated power and suppress a decrease in a rotational speed of the internal combustion engine in a case where a negative torque that hinders rotation of the internal combustion engine occurs in the estimated torque ripple of the internal combustion engine.

A gas turbine system and its control method are disclosed. The gas turbine system comprises: a gas turbine having a compressor for generating compressed air, a combustor for burning fuel using compressed air, and a turbine driven by combustion gases generated by combustion of fuel in the combustor; an electric generator capable of being driven by the turbine and capable of providing rotational power to the gas turbine via power supplied from an external source; a fuel flow determination device for determining a set value of a parameter used in controlling the flow rate of fuel supplied to the combustor; and a fuel flow control device for controlling the flow rate of fuel supplied to the combustor based on the set value, wherein in an operating mode in which the electric generator provides rotational power to the turbine, i.e., a reverse electric operation mode, the fuel flow determination device determines the set value in such a way that the fuel flow rate becomes a lower limit value in the reverse electric operation mode.

A control system for operating a military vehicle according to different modes includes processing circuitry that receives a user input indicating a selected mode of the different modes, and operates a driveline and a front end accessory drive (FEAD) of the military vehicle according to the selected mode. The driveline of the military vehicle includes an engine and an integrated motor generator (IMG) and the FEAD includes multiple accessories and an electric motor-generator. The modes include an engine mode and an electric mode. In the engine mode, the engine drives the FEAD and drives tractive elements of the military vehicle through the IMG for transportation. In the electric mode, the engine is shut off to reduce a sound output of the military vehicle and the IMG drives the tractive elements of the military vehicle for transportation and the electric motor-generator drives the FEAD.

The utility model provides a side-by-side double-motor variable frequency generator set. The side-by-side double-motor variable frequency generator set comprises a power body, a transmission assembly, two second impellers and two motor bodies. Wherein the power main body is provided with a first air inlet, a first impeller, a first cavity, two second cavities, a first output shaft and two second output shafts, and the first cavity and the second cavities are both arranged on the rear side of the power main body. The first output shaft and the second output shafts are arranged in parallel, and the axes of the two second output shafts are located at the same horizontal height. The transmission assembly is used for enabling the first output shaft to be in transmission connection with the two second output shafts and enabling the rotating speed of the second output shafts to be higher than that of the first output shaft. Compared with a conventional single-motor generator set, the side-by-side double-motor frequency conversion generator set has the advantages that the two motor bodies which are arranged side by side are designed on the rear side of the power main body, the motor bodies of the side-by-side double-motor frequency conversion generator set are smaller in size, the whole machine structure is more compact, and the size, the weight and the cost of a machine type with the same displacement can be greatly reduced.

To miniaturize a hybrid air conditioning system.SOLUTION: The hybrid air-conditioning system includes a refrigerant circuit in which an indoor heat-exchanger and an outdoor heat-exchanger are provided, a motor generator 21 in which MG shaft gears 232, are provided on a rotating shaft 211, an engine 20 in which EG shaft gears 231, are provided on an outputting shaft 201, and compressors 22 in which CP shaft gears 221a, 221b are provided on inputting shafts 233a, 233b and which are operated by supplying a driving force to the inputting shafts 221a, 221b to circulate a refrigerant in the refrigerant circuit. The engine and the compressors 22a and 22b are disposed on one side in a direction parallel to the EG shaft gears, and the motor generator is disposed on a side opposite to the one side.SELECTED DRAWING: Figure 2

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

To provide a power transmission device for a vehicle capable of controlling differential motion of a pair of right and left wheels while suppressing increase of vehicle weight.SOLUTION: The vehicular power transmission device 20 includes a right wheel axle 42R, a motor generator 50 having a stator 52 and a rotor 54 relatively rotatable around an axis Cmg1, and an electronic control device 90. (a) a ratio α 1 (= NwR / Nd) of the right wheel speed NwR to the differential-case rotation speed Nd is equal to a ratio α 2 (= Nr / Ns) of the rotor rotation speed Nr to the stator rotation speed Ns, (b) the stator 52 has a coil 52c, (c) the rotor 54 generates a rotating magnetic field for the stator 52 in accordance with the relative rotation between the stator 52 and the rotor 54, and (d) the electronic control device 90 is configured to control the rotation of the motor generator 50 in accordance with a predetermined condition when the predetermined condition is satisfied.SELECTED DRAWING: Figure 1

A system and method are provided for hybrid electric internal combustion engine applications in which an electric motor generator, a narrow switchable coupling and a torque transfer unit therebetween are arranged fore of the engine in applications such as commercial vehicles, off-road vehicles and stationary engine installations and positioned in a constrained environment. The electric motor generator is preferably positioned laterally offset from the switchable coupling which is arranged coaxially with a forward end of the engine crankshaft. The switchable coupling is an integrated unit in which a crankshaft vibration damper, an engine accessory drive pulley and a disengageable clutch overlap such that the axial depth of the clutch-pulley-damper unit is nearly identical to that of a conventional belt drive pulley and engine damper. The fore end motor generator system includes an electrical energy storage which receives electrical energy generated by the motor generator when the coupling is engaged. When the coupling is disengaged, the motor generator can drive the pulley portion of the clutch-pulley-damper to drive engine accessories independent of the engine crankshaft using energy returned from the energy storage.

A motor torque control device for a hybrid vehicle (1) in which a drive motor (2) and a motor generator (3) are connected to each other via an automatic clutch (7) and the motor generator (3) and a transmission (4) are connected to each other via a manual clutch (8), wherein a control mode of the hybrid vehicle (1) comprises an EV mode in which the automatic clutch (7) is disengaged to cause the hybrid vehicle (1) to drive by power from the motor generator (3), and an HEV mode in which the automatic clutch (7) is engaged to cause the hybrid vehicle (1) to drive by power from the drive motor (2) or by power from the drive motor (2) and the motor generator (3), wherein the engine torque control device has a control unit (10) configured to switch between EV mode and HEV mode based on a driver request torque calculated based on at least one accelerator opening degree, wherein the control unit (10) corrects a torque of the motor generator (3) such that a rate of change of speed of the motor generator (3) in the EV mode and a rate of change of speed of the motor generator (3) in the HEV mode are within a range.

A housing of a battery pack to be mounted on a hybrid system includes a housing main body including a first accommodating portion to accommodate a battery module to supply electricity to a motor generator of the hybrid system and a second accommodating portion to accommodate a control circuit of the battery module, a housing cover mounted on the housing main body, and a partition wall located between the first accommodating portion and the second accommodating portion in the housing main body to partition a space of the first accommodating portion and a space of the second accommodating portion from each other.

The present disclosure relates to a feed water pump unit and a thermal power generating unit, and relates to the technical field of power systems, and can realize flexible switching of steam driving and electric driving of the feed water pump, thereby improving the driving efficiency of the feed water pump. The feed water pump unit comprises a small steam turbine, a motor generator and a feed water pump, the steam inlet of the small steam turbine is externally connected to the medium pressure cylinder and the low pressure cylinder of the main steam turbine through a steam pipeline, the steam outlet of the small steam turbine is externally connected to a condenser, and the small steam turbine, the motor generator and the feed water pump are coaxially connected. The small steam turbine is used for switching to a target steam extraction mode according to the unit load of the main steam turbine, and in the case that the power in the target steam extraction mode is greater than the power of the feed water pump, steam is supplied to the feed water pump to drive the feed water pump to operate. The motor generator is used for generating power in the case that the power of the small steam turbine in the target steam extraction mode is less than or equal to the power of the feed water pump, and the small steam turbine supplies steam to the feed water pump to drive the feed water pump to operate.

A vehicle control device capable of avoiding deterioration of NV characteristics of a vehicle and properly starting an internal combustion engine by crank rotation of an electric motor. A control device (30) controls a vehicle provided with an engine (11), a motor generator (12) coupled to the engine, and drive wheels (DW) driven by output of at least one of the engine and the motor generator, and the vehicle (1) is capable of starting the engine (11) by crank rotation driven by the motor generator (12), in the case where the engine (11) is started, before the engine (11) is in a fully combusting state, the control device (30) controls motoring torque of the motor generator (12) based on intake air pressure; after the engine (11) is in the fully combusting state, the control device (30) controls regenerative torque of the motor generator (12) based on fuel injection amount to the engine 11 until the engine speed converges within a prescribed range.

The invention provides a method for detecting on-fixation of a system main relay, which can detect the on-fixation state of the system main relay without being affected by residual voltage even if a capacitor component exists on a power supply circuit. A system main relay ON / Fastening detection method for controlling the state of power transmission / reception of a lithium ion battery includes: a first step of turning on an ignition switch of a vehicle using a motor generator capable of charging the lithium ion battery by voltage control, and then turning off the ignition switch of the vehicle using the motor generator, the motor generator being capable of charging the lithium ion battery by voltage control; sending an indication of a disconnection state to a system main relay; a second step of controlling the voltage of the motor generator so as to output a target voltage higher than the battery voltage of the lithium ion battery; and a third step of determining that the system main relay is in an on-fixed state when the battery voltage changes after the second step.

This invention provides a vehicle control device and a vehicle control method. When the ignition switch is turned off before the engine speed reaches its autonomous operating speed (i.e., the autonomous speed), the vehicle control device performs a rising process, and after the rising process is completed, it performs a stop position control. The rising process involves increasing the engine speed until it reaches a speed above the autonomous speed. The stop position control uses an electric generator to convert the rotational energy of the engine crankshaft into electrical energy for regenerative braking, thereby stopping the piston in the cylinder at a predetermined position.