338 results about "Engine-generator" patented technology

The invention discloses a hybrid crawler tractor for hills and mountains and a control method. The hybrid crawler tractor comprises a power system, a transmission system, an energy storage system, a driving system and a control system, the power system comprises an engine, a generator and a clutch; the transmission system comprises a mechanical coupling device, a gearbox, a power output shaft and the like; the energy storage system comprises a photovoltaic power generation panel and an energy storage device; the driving system comprises a driving system input shaft, left and right traction motors, left and right planet rows, driving wheels and the like; the control system comprises a whole vehicle controller, an energy storage device controller, a motor controller, an engine controller, a vehicle information sensor, a clutch control unit, a brake control unit and the like. According to the crawler tractor, a double-engine and motor mixed connection double-power flow structure is adopted, operation and running under various complex working conditions in hills and mountains are met, rich solar resources in the region are fully utilized, the advantages of a traditional crawler tractor and a new energy tractor are considered, and long-time operation in busy farming seasons is guaranteed.

The invention discloses a range extender power generation system and a control method, and relates to the technical field of power systems. The system comprises an energy storage module, a driving module, a range extender module and a control module, the control module combines model predictive control and reinforcement learning and optimizes energy distribution, so that the system can automatically select an optimal strategy according to different driving working conditions, the energy utilization efficiency is further improved, the total energy consumption is reduced, and the driving efficiency is improved. The efficient cooperative work of the internal combustion engine, the generator and the driving motor is realized; self-adaptive gear shifting control is carried out based on real-time vehicle working conditions, path prediction information and motor efficiency, and it is ensured that a driving motor always works in an efficient area. Besides, the system also has fault diagnosis and fault-tolerant control functions, can detect the performance deviation of the engine and the generator in real time, automatically enters a fault-tolerant mode when a fault occurs, and ensures that the vehicle can safely run to a preset place even under the fault condition by cutting off or adjusting the output of the engine.

The invention discloses a cooperative control method for conversion of torque control and rotating speed control of an engine and a generator and a medium. The method comprises the following steps: calculating available recovery torque of a generator, and requesting an engine to load reserve torque by a vehicle control unit; activating an engine rotation speed control flag bit, an engine control rotation speed mode and a generator control torque mode; determining a target rotating speed and a target torque, further determining a generator torque filtering rate, and respectively controlling and adjusting the rotating speed and the torque; and exiting the engine rotation speed control flag bit, the engine control torque mode and the generator control rotation speed mode. By increasing the reserve torque of the engine, the torque adjusting capacity of the engine is improved, the engine and the generator are cooperatively controlled, and engine speed fluctuation is reduced.

The present invention relates to the technical field of tractors. Disclosed are a hybrid system and a tractor. The hybrid system comprises an engine, a generator, a battery, a driving motor, a power output device, a rear axle, a brake, a first gear shifting device and a power transmission module, wherein the power transmission module comprises a planet gear assembly, a first transmission assembly, a second transmission assembly and a third transmission assembly. An output shaft of the engine is connected to the power output device, the driving motor is in transmission connection with a sun gear, the sun gear is in transmission connection with a planet gear, the planet gear is in transmission connection with a ring gear, and a planet carrier is connected to the planet gear. The engine is connected to the generator, the brake is arranged on the ring gear, and the generator is in transmission connection with the ring gear by means of the first gear shifting device. The planet carrier is connected to the rear axle, the generator is connected to the battery, and the battery is connected to the driving motor. The hybrid system disclosed by the present invention is a simplified system, and saves on costs.

The invention discloses a hybrid electric vehicle torque dynamic control method, which relates to the technical field of hybrid electric vehicles, and has the main design conception that aiming at a driving framework and a control mode of a hybrid electric vehicle, after torque required by a driver is received, the torque required by the driver is controlled; different dynamic torque coordination distribution control strategies are adopted for the three different working condition states of middle mode switching, middle gear switching and steady-state operation, so that torque distribution of an engine, a generator and a driving motor is dynamically coordinated, corresponding torque control is executed according to the distribution result, and the whole vehicle has excellent driving experience.

The invention provides a vehicle control method and a vehicle, and the vehicle comprises a range extending system which comprises an engine, a generator and a power battery which are sequentially connected in series; a drive shaft; the driving motor is connected with the power battery and the driving shaft so as to drive the driving shaft to rotate; the one-way clutch is arranged between the output end of the engine and the driving shaft, and the range extending system can be connected with the driving motor in series or in parallel through disconnection or connection of the one-way clutch; the method comprises the step of controlling the start-stop state and / or the working mode of an engine according to the speed of a vehicle under the condition that a one-way clutch has an adhesion fault, so that the running state of the engine is matched with the rotating speed of a driving shaft.

The invention relates to a driving system for a hybrid tractor, which comprises an engine, a generator, a front motor and a rear motor, and the engine is in transmission connection with a PTO (Power Take Off); the front axle input shaft is in transmission connection with the front motor and the normally-combined clutch input shaft, a normally-combined clutch is arranged on the normally-combined clutch input shaft, a parking brake is arranged on the normally-combined clutch input shaft, and the parking brake is connected with the rear axle. An input shaft of the normally-combined clutch is in transmission connection with a small cone shaft, a mode switching clutch is arranged on the small cone shaft, the small cone shaft is in transmission connection with the input shaft of the normally-combined clutch and a rear motor, and one end of a sun wheel shaft is connected with a rear wheel through a planetary gear mechanism. And a service brake is arranged on the sun wheel shaft. The normally-combined clutch input shaft, the normally-combined clutch and the transmission mechanism are arranged between the front axle and the rear axle, so that the four-wheel braking function is achieved.

A torque distribution method for an ECVT mode of a hybrid vehicle model, and a hybrid vehicle. The method comprises: on the basis of vehicle operating conditions and the state of a vehicle power system, determining a total engine power demand; on the basis of the total engine power demand, the difference between the current power level and a target power level of a high-voltage battery, the coolant temperature of an engine, an atmospheric pressure, and a vehicle speed, determining a final target rotational speed of the engine; and on the basis of the total engine power demand, the final target rotational speed of the engine, and an actual rotational speed of the engine, determining a torque distribution for the engine, a generator, and a driving motor.

The utility model provides a transfer case, range extender assembly and engineering machinery, transfer case is applicable to the engineering machinery, the engineering machinery comprises an engine, a generator and a hydraulic pump, transfer case includes: transfer case, transfer case includes casing and is located the planetary gear subassembly in the casing, planetary gear subassembly includes planet carrier, sun gear and a plurality of planet gear, the multiple planet gears are arranged around the outer circumferential face of the sun gear at intervals, and all the planet gears are installed on the planet carrier and engaged with the sun gear. Wherein the planet carrier is connected with an output shaft of the engine, and the sun gear is in transmission connection with an input shaft of the generator, so that the problem that in the prior art, an engine of a range extender structure for engineering machinery cannot work in the optimal efficiency interval all the time is solved.

The invention belongs to the technical field of new energy automobiles, and particularly relates to a multi-axle hybrid vehicle real-time energy management strategy based on hierarchical control, which specifically comprises the following steps of: (1) calculating load power based on a whole vehicle dynamic balance equation, dividing the load demand power into a high part and a low part by adopting Haar wavelet filtering, high-frequency power and low-frequency power are obtained by decomposing and reconstructing an original signal; (2) distributing high-frequency power to a super capacitor, performing secondary optimization distribution on low-frequency power by taking fuel economy, a battery charge state and bus voltage as optimization targets, and solving an optimal power distribution ratio of an engine-generator set and a power battery pack in real time by utilizing a model prediction control method; and (3) establishing a layered energy management strategy by adopting a mode of combining front wavelet filtering and rear model predictive control. On the premise that the dynamic property of the whole vehicle is met, the fuel economy is improved and the multi-power-source characteristic is exerted by reasonably distributing energy flow between the power assemblies.

The invention provides an ECVT variable speed power system which comprises an engine, a generator, a power battery pack, a motor and a drive axle assembly, the generator is electrically connected with the power battery pack, and the power battery pack is electrically connected with the motor; a first shaft is arranged at the output end of the engine, the first shaft is in transmission connection with an input shaft of the generator, and an intervention clutch is arranged on the first shaft. A second shaft is arranged at the output end of the motor, a planet wheel mechanism is arranged on the second shaft, a sun wheel of the planet wheel mechanism is in transmission connection with the second shaft, a gear ring is in transmission connection with the driven end of the intervention clutch, and a planet carrier is in transmission connection with an input shaft of the drive axle assembly. According to the invention, the planet wheel mechanism is driven by the motor, so that stepless speed change is realized; meanwhile, switching of multiple modes of a pure electric mode, a series mode and a hybrid mode can be supported, it is guaranteed that the engine operates in an economic interval, the energy efficiency is improved, oil consumption is reduced, and the use cost is low.

The utility model provides a power system, a new energy series-parallel power system and an automatic driving vehicle. The power system comprises an engine; the generator is in transmission connection with an output shaft of the engine; the input end of the gearbox is in transmission connection with an output shaft of the engine, and the output end of the gearbox is used for being in transmission connection with a main speed reducer; an output shaft of the first driving motor is in coupling transmission connection with an output shaft of the generator through a main clutch, and the output shaft of the first driving motor is selectively in transmission connection with a gear shifting gear set in the gearbox; the motor controller is electrically connected with the generator and the first driving motor respectively; and the shock absorber is arranged between the generator and the engine and is connected to an output shaft of the engine.

The invention discloses a driving system and a control method thereof, electronic equipment, a storage medium and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of how to improve the energy utilization rate of the driving system. The driving system is applied to a vehicle and can comprise a first transmission assembly, and the first transmission assembly is suitable for being connected among an engine, a generator and a first electric machine; the first transmission assembly selectively enables the engine to drive the power generator and / or the first motor to generate power according to the power generation requirement of the vehicle, so that the driving system is switched among multiple power generation modes.

An energy coordination control method. The vehicle comprises an engine, a generator, a battery, a charger and an air conditioner. The generator is mechanically connected to the engine, the generator and the charger are both electrically connected to the battery, the battery is electrically connected to the air conditioner, and the generator is electrically connected to the air conditioner. The method comprises: when a charging signal is detected, controlling the charger to charge the battery, and monitoring an air conditioner signal of the air conditioner (S100); and if it is determined, according to the air conditioner signal, that the air conditioner has the demand for electricity, controlling the engine to start to drive the generator to supply power to the air conditioner (S200). An energy coordination control system, the vehicle, a computer processing device, a computer program and a computer-readable medium are further provided.

The invention relates to the technical field of generator silencers, in particular to a mute variable-frequency gasoline engine generator silencer and a production process. Comprising an air inlet assembly, an installation assembly, a front end cover net plate, front end cover cotton, a silencer upper cover, an upper cover net plate, upper cover cotton, a silencer lower cover, a lower cover net plate, lower cover cotton, a front partition plate, a rear partition plate, a front silencing pipe, a plurality of plugs, a rear silencing pipe, a silencer rear end cover, a rear end cover net plate, rear end cover cotton, a silencing bag, silencing bag cotton, a silencing bag net plate and an air outlet pipe. The upper cover cotton is arranged between the silencer upper cover and the upper cover net plate, the lower cover cotton is arranged between the silencer lower cover and the lower cover net plate, the silencer upper cover is fixedly connected with the silencer lower cover, and the front partition plate and the rear partition plate are both connected with the upper cover net plate and the lower cover net plate. In this way, the technical problems that in the prior art, due to the fact that silencing cotton in a silencer is manually added into an interlayer, the number of the added silencing cotton cannot be guaranteed, and the uniformity is poor are solved.

The invention belongs to the technical field of electric vehicle energy consumption management, and provides a range-extended electric mine truck energy consumption optimization management system and method, and the system comprises a vehicle control unit, a power battery management system, a range extender controller, an engine, a generator, a drive motor and a gearbox. Wherein the vehicle control unit is respectively connected with the power battery management system, the range extender controller, the driving motor and the gearbox, and the range extender controller is respectively connected with the engine and the generator; according to the invention, the energy consumption condition of the extended-range electric mine truck can be monitored in real time, and the working mode of the range extender and the output power of the driving motor are optimized and managed according to the running state of the vehicle and the electric quantity state of the battery, so that the energy utilization rate is improved; and meanwhile, the working mode of the range extender and the output power of the driving motor are optimized and managed, so that the endurance mileage of the range-extended electric mine truck can be effectively improved, the charging frequency is reduced, and the operation efficiency is improved.

The present application relates to the field of electrical engineering, in particular to a kind of full DC power supply system suitable for pulse load characteristics.The system includes control unit, chassis engine, generator, rectifier unit, energy storage unit and distribution unit;Wherein, rectifier unit uses uncontrolled rectification+BUCK type step-down topology, and constant voltage control strategy, specifically: double-loop control mode of outer ring voltage control+inner ring current control, output DC 600V DC bus is stabilized at set voltage value, realizes the constant voltage control of output voltage.Solve the energy supply problem of equipment single vehicle operation, and the problem that traditional electric car system constant current strategy and equipment pulse load are difficult to match.Using the power supply structure of rectifier unit+energy storage unit (capacitor), remove lithium battery in traditional electric drive system, avoid the safety problem of lithium battery, and the system safety is high.

To provide a hybrid vehicle charging control system capable of supplying electric power from a power supply device to a battery while reducing the number of battery cells.SOLUTION: A hybrid vehicle charging control system comprises: a battery capable of storing electric power; an engine which is driven through fuel combustion; a generator which charges the battery with the electric power generated through the drive of the engine; a charging section which charges the battery with the electric power supplied from an external power supply device; and a processor which drives the engine to cause the generator to charge the battery when voltage of the battery is equal to or lower than operating voltage of the power supply device and charges the battery with the charging section with the electric power supplied from the power supply device when the voltage of the battery is larger than the operating voltage of the power supply device.SELECTED DRAWING: Figure 1

The invention provides a power generation device for an aerial work platform and a control system and method.The power generation device comprises an engine, a power generator, an automatic tensioning wheel and a belt, the power generator is fixed to the aerial work platform through a power generator mounting support, and the automatic tensioning wheel is fixed to the power generator through an automatic tensioning wheel mounting support; the belt is connected between an engine belt pulley of the engine and a generator belt pulley of the generator, and the tensioning degree of the belt is adjusted through the automatic tensioning wheel; the power generation device further comprises a rectifier bridge, an inverter and a transformation filter which are electrically connected with the power generator, the rectifier bridge is used for rectifying alternating current output by the power generator into direct current and transmitting the direct current to the inverter, and the inverter is used for inverting the direct current into the alternating current. And the transformation filter is used for carrying out transformation, filtering, frequency modulation and voltage regulation on the alternating current to form stable voltage and frequency output.

To provide an engine starting device that has a simple configuration and reduces fuel consumption when starting the engine. [Solution] A starting device 100 for engine E that starts with butane gas 3 and operates normally with kerosene 4, comprising a vacuum valve 8 configured to supply butane gas 3, a carburetor 5 configured to supply kerosene 4, a throttle SV provided on the carburetor 5, and a control device, wherein when starting engine E, the control device controls the opening S of the throttle SV of engine E to opening S1 so that the intake vacuum of engine E acts on the vacuum valve 8 to supply butane gas 3 to engine E, and kerosene 4 is not supplied to the carburetor 5 of engine E, and only butane gas 3 is supplied to the intake pipe 6 of engine E, thereby starting engine E.

The invention relates to the technical field of emergency flameout systems, in particular to an airplane refueling vehicle emergency flameout system which comprises a vehicle engine, a generator, a platform anti-collision switch, an engine flameout module, a first relay, a vehicle power source, an alarm and a second relay. The two ends of a normally open contact of the second relay are connected with the signal sending end and the signal input end of the engine flameout module in series respectively, and the engine flameout module is in communication connection with the vehicle engine. And the vehicle power supply, the normally closed contact of the first relay and the alarm are sequentially connected in series. By arranging the generator, the first relay and the alarm, a driver can be reminded through the alarm when the generator is abnormal and the engine flameout module cannot work; and meanwhile, under the condition that the anti-collision switch of the platform is not reset after being closed, equipment operation is stopped emergently, and the vehicle is prevented from being started again.

A test method of gasoline engine generator set on engine test bench belongs to the technical field of engine test. The general engine test bench is reversibly and modularly transformed. The original power absorption device, the control and measurement industrial computer, the thermal / NVH collection system and the INCA computer are retained. The rectification, power measurement, adjustable electric load and oil consumption instrument device are newly added. The control system is reconstructed in double modes. The generator set test mode is added and the control function of the power absorption device is shielded. The speed / torque closed-loop control logic taking the adjustable electric load as the regulated variable is established. Relying on the synchronous collection of the unified clock, the microsecond time stamp alignment collection of the oil consumption, thermal, power, NVH and AC / DC electric performance of the generator set is realized. The test is carried out by reusing the extreme environment simulation system of the test bench. The transformation is reversible and non-damaging, does not affect the original function, can greatly reduce the equipment investment, improve the utilization rate of the test bench and provide support for the performance optimization of the generator set.

This invention discloses a plug-in independent power supply hybrid power system for aircraft, which can be installed in situ without altering the original aircraft's core structure. The system employs an external independent power battery module, a small-power engine generator, and a small battery module to form a "three-level independent redundant power architecture," with each unit's power supply circuit electrically isolated from the others. The external independent power battery only charges on the ground and discharges unidirectionally during flight, without energy recovery or reverse charging. It only replaces all functions of the flight control system and electronic control system when the engine and small battery fail. The small-power engine does not participate in takeoff and climb, but is dedicated to cruise power supply. The small battery is responsible for powering the flight control system, electronic control system, and engine starter, sharing a high-voltage DC bus with the generator to achieve bus voltage stabilization and short-term power compensation. Ground charging simultaneously performs a full system self-check. When the battery power is insufficient or the test fails, there is no manual bypass, and the electronic control system is forcibly locked, prohibiting engine starting and ensuring absolute flight safety.

The invention relates to a land leveler front wheel steering device and a control method, the steering device comprises a front wheel structure main body, the front wheel structure main body realizes driving steering through an electric cylinder, and the electric cylinder is driven through a power control system. The power control system comprises a handle, a steering wheel, a first controller, a second controller, an engine, a generator, a rectifier, an inverter and a vehicle speed controller, and the first controller processes received handle or steering wheel output signals, vehicle speed sensor signals and electric cylinder displacement sensor signals and then sends the signals to the second controller. The second controller controls the inverter to output corresponding current according to a signal output by the first controller, the inverter outputs the current to the electric cylinder, and after the electric cylinder receives a current signal, driving steering of the front wheel structure body is achieved, front wheel steering operation of the land leveler can be optimized, front wheel steering preachability, comfort and safety are improved, and the land leveler is suitable for large-scale popularization and application. Working efficiency is improved, and potential safety hazards are reduced.

The invention relates to a power assembly and a vehicle, the power assembly comprises an engine, a generator and a transmission assembly, and the engine is provided with a first power output end; a rotor of the generator is directly connected with the first power output end; the rotor is connected with the differential mechanism through the transmission assembly, and the transmission assembly is used for controlling on-off of power transmission between the rotor and the differential mechanism. As the first power output end of the engine is directly connected with the rotor of the generator, direct-drive connection between the first power output end of the engine and the rotor of the generator can be realized, and a gear set for transmission does not need to be arranged between the first power output end of the engine and the rotor of the generator; a transmission part between the first power output end of the engine and the rotor of the generator is omitted, the number of parts of a transmission assembly of the power assembly is reduced, and the cost of the power assembly is reduced.

Hybrid powertrain (10) for starting and propelling a vehicle (8), comprising: a motor (12); a first motor / generator (14); a second motor / generator (16); and a single-stage, widely branched, electrically variable transmission (18) comprising the following: a drive element (52); a stationary element (54); a gear train (44); a torque transmission device (56); a compound planetary gear assembly (20) comprising a ring gear structure (24), a first sun gear element (26-1, 126-1, 226-1, 326-1), a second sun gear element (26-2, 126-2, 226-2, 326-2), a support structure (28), and a double pinion assembly comprising a first pinion gear (30-1, 130-1, 330-1) meshing with the first sun gear element and a second pinion gear (30-2, 130-2, 330-2) meshing with the first pinion gear (30-1, 130-1, 330-1) and the ring gear structure (24); and a highest numerical translation ratio of approximately 4 to 1 and a lowest numerical translation ratio of approximately 0.7 to 1; where: The composite planetary gear arrangement (20) comprises a first node (32-1), a second node (32-2), a third node (32-3) and a fourth node (32-4), wherein the first, second, third and fourth nodes (32-1, 32-2, 32-3, 32-4) have at least a gear ratio of 3 to 1 between the torque transmission device (56) and the output element (52); the second motor / generator (16) is functionally connected via the transmission train (44) to the compound planetary gear assembly (20) at the first node (32-1); the output element (52) is functionally connected to the composite planetary gear assembly (20) at the second node (32-2); the motor (12) is functionally connected to the composite planetary gear assembly (20) at the third node (32-3); the first motor / generator (14) is functionally connected at the fourth node (32-4) to the composite planetary gear assembly (20); The torque transmission device (56) can be engaged to ground the third node (32-3) to the stationary element (54); and each of the first and second motors / generators (14, 16) uses non-rare earth magnets.

The invention provides a range extender power generation control method and device, a range extender system and a vehicle. The range extender power generation control method comprises the steps that the range extender efficiency eff is determined according to the temperature t of a generator of the range extender; and according to the efficiency eff of the range extender and the power generation power Pe which needs to be provided by the range extender, the mechanical power Pm which needs to be emitted by the range extender is determined. The processor of the control device is configured to execute the range extender power generation control method. The range extender system comprises an engine, a generator and the control device. The vehicle comprises the range extender system. According to the technical scheme, the actual generated power of the range extender and the required power following performance of the whole vehicle can be improved.

The invention discloses a hybrid power coaxial reversal helicopter transmission system, which belongs to the field of gear transmission and comprises an engine, a generator, a motor, a reversing subsystem, a coaxial reversal subsystem, a tail transmission subsystem and the like. The engine and the generator are connected through the parallel shaft speed reducer and connected to the first reversing subsystem through the friction clutch, and the reversing subsystem is connected to the coaxial reversing subsystem through the duplicate gear. The coaxial reversal subsystem adopts coaxial face gear transmission and comprises an upper face gear, a lower face gear, a left input straight gear, a right input straight gear and an idle gear. The motor is connected to the second reversing subsystem through a parallel shaft speed reducer and then connected to the coaxial reverse subsystem through a duplicate gear. And the power of the engine and the motor is converged through the coaxial reversal subsystem and is supplied to the coaxial reversal rotor wing for flight. And meanwhile, the output power of the motor is connected to the tail rotor through the reversing subsystem. The coaxial face gear transmission is adopted, torque from different power sources can be effectively transmitted to the main rotor wing or the tail rotor wing according to requirements, and better torque distribution is provided.

The utility model relates to the technical field of tractor power assemblies, in particular to an efficient tractor CVT power assembly. Comprising an engine, a generator, a driving motor and a gearbox, the output end of the engine is in transmission connection with a driving shaft, a generator rotor is coaxially and fixedly connected with an input shaft, the end, close to the driving shaft, of the input shaft is in acceleration transmission connection with the driving shaft through a first planetary gear set, and the end, away from the driving shaft, of the input shaft is in transmission connection with a PTO shaft; an output shaft is arranged on the driving motor, and a transmission shaft in transmission fit with the output shaft is arranged on the gearbox. Through the structure, the driving shaft and the generator input shaft are in accelerated transmission through the first planetary gear set, the mode that the driving shaft and the generator input shaft are directly, coaxially and fixedly connected is eliminated, and compared with a transmission power assembly, under the condition that the rotating speed of the driving shaft is the same, the rotating speed of the input shaft in the device is higher; in other words, the power generation efficiency of the generator is higher, and power output by the engine driving shaft is fully utilized.