1804 results about "Powertrain" patented technology

An undercarriage, a middle large rotor and a middle large motor are connected to the lower portion of a fuselage body and sequentially connected to the top of a middle small tower, and the right front portion, the left front portion, the left rear portion and the right rear portion of the fuselage body are correspondingly connected with a right front fuselage arm, a left front fuselage arm, a left rear fuselage arm, a right rear fuselage arm and a power assembly. The connecting line of the rotating centers of the rotors of the four power assemblies is square or rectangular, the rotating directions of the rotors of the power assemblies at the same opposite angles are the same, the rotating directions of the rotors of the power assemblies at different opposite angles are opposite, and the rotating faces of the two rotors opposite to the middle large rotor in rotating direction incline around the axes of the respective arms. The included angle between the rotating surfaces of the two rotors and the horizontal plane is an acute angle beta, the rotating surfaces of the two rotors with the same rotating direction as the middle large rotor incline around respective arm axes, the included angle between the rotating surfaces of the two rotors and the horizontal plane is an acute angle theta, beta is larger than theta, the reaction torque and the horizontal component torque of the rotors jointly drive the aircraft to steer, and the aircraft has the advantages of being long in endurance time, large in load and high in wind resistance. And a universal flight platform is formed.

The invention relates to the technical field of torque converters, in particular to a hydrodynamic transmission power chain optimization method and system.The method comprises the steps that a hydrodynamic torque converter parameterized geometric model is built, and a pump impeller blade outflow angle, a guide wheel runner input / output angle, turbine blade geometric parameters and the relative position of a pump impeller and a turbine are set as design variables; based on CFD three-dimensional flow field simulation, a k-epsilon model is adopted for rapid analysis, an SST model is adopted for transient simulation, and simulation data under different variable combinations are obtained; training a BP neural network by using the simulation data, inputting each design variable, and constructing a multi-target optimization model with maximization of efficiency and minimization of noise as targets; a design variable combination is selected in the Pareto optimal solution set, a model is reconstructed, and an optimized hydraulic torque converter is obtained; according to the method, the problems that the design optimization efficiency of the hydraulic torque converter is low, the parameter adjusting period is long, and good compromise between the transmission efficiency and noise suppression is difficult to obtain can be solved.

The invention relates to the technical field of automobile energy supply, in particular to a solid hydrogen storage-fuel cell integrated power assembly system based on dual-mode hydrogen supply, which comprises a hydrogen supply path identification module, a hydrogen storage unit state monitoring module, a linkage path switching module, a fuel cell load matching module and a safe hydrogen discharge regulation and control module. According to the method, the hydrogen supply pressure difference value is obtained by dynamically comparing the pressure of the cavity of the hydrogen storage tank with the pressure of the hydrogen inlet of the fuel cell, the current hydrogen supply path state can be accurately recognized in the early stage, rapid judgment of the hydrogen supply mode and accurate control of path switching are achieved, whether the risk of hydrogen supply interruption exists or not can be effectively screened, and the reliability of hydrogen supply is improved. The switching reliability of a hydrogen supply channel is improved through cross comparison of key state signals of a main channel and a standby channel, and instant response and energy consumption optimization of hydrogen discharge safety regulation and control are guaranteed through a linkage feedback mechanism between the hydrogen concentration change rate in unit time and catalytic converter control power.

The invention relates to the technical field of new energy automobile electric control, and discloses a torque compatible intelligent matching system and method for a new energy automobile, and the system comprises a parameter pre-storage module, an EOL configuration module, a dynamic selection module, a data collection module, a torque calculation module, and an execution output module. A driving system configuration identifier is written in through a vehicle production line EOL terminal to realize hardware adaptation selection; an eagle optimization algorithm is innovatively integrated and improved to construct a historical driving database, an output proportion table is periodically adjusted to improve the driving smoothness, and meanwhile a supplier batch compensation mechanism is established to solve the hardware tolerance problem; fault grading processing is achieved through parameter table dual redundancy check, and torque distribution efficiency is continuously optimized in combination with a full-life-cycle closed-loop self-learning module. According to the scheme, the development cost adaptive to different power systems is reduced, and the core pain points of poor multi-source hardware compatibility, weak working condition adaptability and extensive energy efficiency management of the new energy automobile are solved.

The present disclosure relates to a powertrain for a work machine (50). The powertrain (100) comprises a first prime mover (10), a second prime mover (12), a set of first gears (14a, 14b), a set of second gears (16a, 16b), an engaging unit (24), and an actuator (26). The first prime mover (10) configured to engage a first shaft (18). The second prime mover (12) configured to engage a power take off (PTO) shaft (20). The first gears (14a, 14a) mounted on the first shaft (18) and the second gears (16a, 16b) mounted on the PTO shaft (20). The actuator (26) configured to be in communication with the engaging unit (24), and further configured to selectively displace the engaging unit (24) from the idling configuration to the engaging configuration to engage with one of the second gears (16a, 16b). Advantageously, the engaging unit (24) facilitates the coupling of the second prime mover (12) with the first prime mover (10); therefore the powertrain (100) provides the desired torque to meet the requirements.

An electric vehicle and a powertrain for an electric vehicle are disclosed. According to an embodiment, an electric vehicle includes a suspension system, a seat, a steering system, an electric motor and a battery pack. The battery pack includes one or more battery modules to provide power to the electric motor and a battery enclosure housing the one or more battery modules. The battery enclosure is a structural element of the electric vehicle to receive loads from at least two of the suspension system, the seat and the steering system.

To provide a vehicle powertrain structure capable of ensuring safety during a vehicle collision, a vehicle includes a drive system, a battery, and an inverter. The drive system has a motor for travel of the vehicle and a motor housing formed of a conductive material. A direct current (DC) connector, to which a wire extending from the battery is connected, is disposed in a rear wall portion of the battery housing. The motor housing accommodates DC bus bars that connect the DC connector and a circuit section of an inverter and an auxiliary machine wire that connects between the DC connector and an electric compressor mounted on the vehicle. A junction box in which the auxiliary machine wire is branched from the DC bus bars is arranged in a rear space behind a motor accommodation space that accommodates a stator and a rotor of a motor.

A powertrain for an aerial vehicle may include a mechanical power source and an electric power generation device mechanically coupled to the mechanical power source. The powertrain further may include an electric motor electrically coupled to the electric power generation device. A first propulsion member may be mechanically coupled to the mechanical power source and configured to provide a first thrust force. The powertrain also may include a second propulsion member mechanically coupled to the electric motor and configured to provide a second thrust force. A vehicle controller may be provided and configured to at least partially control aerial maneuvering of the aerial vehicle, and cause supply of a first portion of the mechanical power to the first propulsion member and a second portion of the mechanical power to the electric power generation device based at least in part on at least one characteristic associated with maneuvering of the aerial vehicle.

A network control method for improving energy consumption by an electrified vehicle during ignition-off involves a supervisory controller configured to control a propulsion system or electrified powertrain of the electrified vehicle and a security gateway (SGW) module. The supervisory controller and the SGW module are each connected to a controller area network (CAN) of the electrified vehicle and the CAN includes a plurality of buses. When one of a plurality of conditions exist to keep one or more of the plurality of buses of the CAN awake during an ignition-off period, the supervisory controller sends a signal to the SGW module that causes it to only communicate on a specific set of buses of the plurality of buses of the CAN to thereby reduce energy consumption of components on the CAN that would have otherwise been awoken by the SGW module.

Land vehicles are disclosed. A land vehicle includes a chassis, a plurality of wheels, a first powertrain unit, and a second powertrain unit. The chassis includes a front suspension subframe assembly and a rear suspension subframe assembly spaced from the front suspension subframe assembly in a longitudinal direction. The plurality of wheels includes a pair of front wheels supported by the front suspension subframe assembly and a pair of rear wheels supported by the rear suspension subframe assembly. The first powertrain unit is supported by the front suspension subframe assembly and coupled to the pair of front wheels. The second powertrain unit is supported by the rear suspension subframe assembly and coupled to the pair of rear wheels.

The vehicle body structure comprises a front wall cross beam assembly and a middle channel, the front wall cross beam assembly comprises a coaming area, a cross beam body and a front wall lower plate which are sequentially connected from top to bottom, the middle channel is located on the rear side of the front wall lower plate and fixedly connected with the front wall lower plate, and the vehicle body structure further comprises a reinforcing structure, the front wall beam assembly is fixedly connected with the rear side face of the front wall beam assembly and fixedly connected with the middle channel. The energy absorption structure protrudes out of the front side face of the front wall lower plate and is fixedly connected with the front wall lower plate. The projections of the energy absorption structure and the middle channel in the X direction of the vehicle body are at least partially overlapped. According to the vehicle body structure, the front wall cross beam assembly is supported through the middle channel, and the supporting strength of the front wall cross beam assembly is improved. By means of the energy absorption structure, when the front portion of the vehicle collides, energy absorption and buffering effects can be directly achieved on devices such as a power assembly in the cabin in a targeted mode, the entering amount of the devices such as the power assembly in the cabin in a passenger compartment is reduced, and the problems that the invasion amount of a front wall is too large, and the collision resistance of the whole vehicle is poor are solved.

The invention relates to the technical field of vehicle power systems, in particular to a solid hydrogen storage device containing a low-temperature cold-start hydrogen storage cylinder and a fuel cell collaborative power assembly, and the device comprises a heat flow modulation module, a balance driving module, a release coordination module, a power matching module and a power assembly control module. In the hydrogen storage process, through real-time linkage judgment of the interface temperature difference and the heat flux change, directional feedback of energy in different areas is achieved, the stable hydrogen release condition of the hydrogen storage material is maintained, differentiated distribution is conducted on heating power according to the heat flux density deviation, invalid energy consumption and local energy accumulation are avoided, and the energy storage efficiency is improved. Dynamic balance is constructed between the hydrogen release rate and the phase change medium energy absorption rate, the hydrogen supply process is corrected through filtering estimation, the release flow is more stable and controllable, finally, the hydrogen supply stability and the load requirement are combined in the power output link, dynamic matching of the galvanic pile power and the external working condition is achieved, and the energy efficiency is improved. And the response flexibility and the energy conversion efficiency of the power system are improved.

An example computer implemented method includes receiving a plurality of optimization variables; receiving a cost function representing a vehicle system, where the cost function includes a plurality of weights assigned to the plurality of optimization variables; decomposing the cost function into a plurality of problems; and generating a solution to the cost function by solving the plurality of problems. An example system includes a vehicle powertrain and a computing device configured to receive a plurality of optimization variables; receive a cost function representing a vehicle system, where the cost function comprises a plurality of weights assigned to the plurality of optimization variables; decompose the cost function into a plurality of control problems; generate a solution to the cost function by solving the plurality of control problems; and control the vehicle powertrain based on the solution to the cost function.

The invention provides a power assembly suspension system evaluation method, system, equipment and medium, and belongs to the field of power assembly suspension design and NVH (Noise Vibration and Harshness). Multi-source parameter data of a power assembly and a suspension system are collected and preprocessed; calculating an evaluation index based on the processed data; quantifying each index into a single value, and performing preliminary screening by taking a static compression amount as a condition index; for the screened scheme, determining the dynamic weight of each index in a subjective and objective fusion mode; calculating a comprehensive evaluation index based on the quantitative index and the dynamic weight; driving suspension rigidity and position parameters to be automatically optimized according to the comprehensive index; and finally verifying the optimal solution set and outputting a qualified result. According to the method, an evaluation-to-optimization mode is constructed, automatic optimization of the suspension system parameters is realized, and the design efficiency and quality are improved. And condition indexes are adopted for preliminary screening and final verification, so that the feasibility of an optimization result is ensured.

The present application relates to a kind of engine speed determination method and system when idling charging working condition, the method specifically is: S1: establishing the finite element simulation model of vehicle NVH, and carrying out vehicle modal analysis;S2: through the engine speed range under idling charging working condition, obtain the excitation frequency range corresponding to each subsystem and power assembly of vehicle;S3: based on S1 and S2, whether the vehicle modal can avoid the excitation frequency of each subsystem and power assembly of vehicle is judged, if can avoid then end, if cannot then enter S4;S4: obtain the cylinder pressure excitation of engine at different speeds under idling charging working condition, carry out vehicle NVH performance analysis, obtain the vibration speed at steering wheel and the noise sound pressure at the right ear of driver under different speeds;S5: based on steering wheel vibration speed and the noise sound pressure at the right ear of driver, determine the engine speed of idling charging working condition.The present application reaches vehicle NVH performance target requirement, reduces later rectification cost.

A heat pump system includes a refrigerant loop and a coolant loop. The refrigerant loop includes a compressor, a water condenser, an expansion valve, and a chiller. The coolant loop includes two water pumps, a one-way valve, six three-way valves, a cabin cooler, a cabin heater, a battery pack, and an electric drive system. An electric heater is used to generate additional heat power for cabin heating. A fan and a blower are used to control the front end and cabin airflow. The heat pump system provides a simplified thermal design for electric vehicles while providing efficient thermal management of the cabin and the powertrain system.

The application provides a power assembly with reducer side wire outlet, a double-motor power assembly and an electric vehicle. The power assembly comprises an intermediate integrated shell, a resolver sensor, a motor and a reducer. The intermediate integrated shell comprises a partition plate and two circumferential shells. One circumferential shell is used for fixing a motor stator of the motor and accommodating a motor rotor of the motor, and comprises at least one through hole. The other circumferential shell is used for accommodating a gear set of the reducer. The partition plate is used for separating the inner cavities of the two circumferential shells. The partition plate comprises a shaft hole and at least one wire outlet hole. The shaft hole and the at least one wire outlet hole are used for connecting the inner cavities of the two circumferential shells. The shaft hole is coaxially arranged with an input shaft of the reducer or a motor shaft of the motor. The distance between the at least one wire outlet hole and the center point of the shaft hole is greater than the inner diameter of a resolver stator of the resolver sensor. The power assembly provided by the application has a smaller axial dimension.

An assembly for an aircraft propulsion system includes an open propulsor rotor and a powertrain configured to receive power from a turbine and drive both the propulsor rotor and a compressor section at the same time in a first mode of operation. In a second mode of operation, a brake is applied that stops rotation of the propulsor rotor and the turbine power received by the powertrain drives only the compressor section. In the second mode, the propulsor rotor is stationary or otherwise undriven which effectively prevents rotation of the propulsor rotor. This reduces or eliminates safety risks to ground crews resulting from an open propulsor rotor actively rotating as the aircraft is on the ground.

A vehicle system including: an electric machine configured for incorporation into a powertrain of a vehicle, the electric machine including a rotor, a stator, and a gap defined between the rotor and the stator; a conduit configured to direct oil into the gap; and a flow control device configured to control flow of the oil through the conduit into the gap. Friction between the oil and the rotor warms the oil and slows rotation of the rotor to brake the vehicle when the electric machine is connected to the powertrain.

The invention relates to the technical field of vehicles, and provides a vehicle power system which comprises a motor used for providing power for the system; the input shaft is used as the power input shaft of the motor; an outer ring of the one-way clutch is connected with a first transmission mechanism, and the first transmission mechanism is driven by the input shaft to move; an inner ring of the first transmission shaft is connected with a second transmission mechanism which is used for driving a tire to rotate; a driving friction wheel of the electromagnetic clutch is fixedly connected to the input shaft, and a driven friction wheel of the electromagnetic clutch is connected with the second transmission mechanism through a third transmission mechanism; according to the system, forward driving, backward driving, smooth upshift and downshift and reverse dragging working condition energy feedback of the vehicle can be achieved, meanwhile, the limp function is provided when the one-way clutch breaks down, the power transmission efficiency and the gear shifting smoothness are both considered, and the core requirements of new energy and hybrid vehicles for a power system are met.

Provided herein is an apparatus, system, and method for reducing a power drawn by a winch as it pulls a vehicle. Methods can include: receiving an indication to operate a vehicle in a winch mode; detecting movement of the vehicle caused by a force from a winch of the vehicle; determining of a speed of movement of the vehicle caused by the force from the winch pulling the vehicle; and providing for control of at least one driven wheel of the vehicle to rotate at a speed corresponding to the speed of movement of the vehicle within a predefined degree of similarity. According to some embodiments the speed of movement of the vehicle is determined based at least in part on a speed of rotation of at least one wheel not being driven by the powertrain of the vehicle.

A vehicle, a method of controlling a vehicle, and a non-transitory computer readable storage medium are described. The vehicle can comprise a management and control system associated to onboard systems and / or to a driving input interface and / or to the engine and / or powertrain and / or to at least one wheel and / or to the chassis. The management and control system can: determine aggregated command outputs; detect one or more dynamic parameters exceeding a threshold safety value; selectively prioritize each of the aggregated command outputs based on one or more of the dynamic parameters to change from a user-selected driving mode to a safety driving mode; and change the prioritized safety driving mode back to the user-selected driving mode in response to the one or more of the dynamic parameters no longer exceeding the threshold safety value.

The utility model relates to the technical field of agricultural machinery, and discloses a four-wheel-drive rotary cultivator capable of improving operation stability, which comprises a power assembly, a front gearbox, a rear gearbox, a front wheel shaft and a rear wheel shaft, the front wheel shaft and the rear wheel shaft are respectively and detachably connected with a walking wheel or a cultivation tool, and the power output end of the power assembly is connected with a power transmission part. The front gearbox and the rear gearbox are mutually independent and are in independent transmission connection with the power assembly through the power transmission part; the front gearbox drives the front axle, and the rear gearbox drives the rear axle. Through independent driving of the front wheel and the rear wheel, the operation stability of the rotary cultivator in different farmland environments is improved, and the soil plowing quality is guaranteed.

A spindle assembly of an axle assembly includes an elongate body partially forming a first cavity and a second cavity. A seal is coupled to the elongate body at a location between the first cavity and the second cavity, and the seal is configured to be in contact with an axle shaft to fluidly seal the first and second cavities from one another. A breather is coupled to the elongate body and disposed in fluid communication with the second cavity. A sleeve is also coupled to the elongate body. The sleeve includes a notch that forms at least a portion of a drainage passage through which a fluid in the second cavity may flow from an upper portion of the second cavity to a lower portion thereof.

The utility model relates to a top-mounted power device for a pure electric dust suppression vehicle. The top-mounted power device comprises a chassis, and a tank body, a fog gun, a fan motor, a lifting oil cylinder, a slewing mechanism and a power assembly which are positioned on the chassis, the fan motor is used for driving fan blades in the fog gun to rotate; the power assembly comprises a double-head output motor, a gear pump, a water pump and a two-in-one controller, the front end of the double-head output motor is directly connected with the water pump, the water pump supplies water for road surface watering operation and spraying dust falling operation, and the rear end of the double-head output motor is directly connected with the gear pump; and the two-in-one controller is used for controlling the operation of the double-end output motor and the fan motor. Through optimization of a control system and integration of a power structure, a two-in-one controller is adopted to control all operation actions of loading, a double-end output motor is adopted to directly connect and drive a water pump and a hydraulic pump, redundant motors and controllers are omitted, wire harnesses are reduced, the weight of a vehicle is reduced, the effective volume of a tank body is increased, and cost is saved.

Road vehicle comprising a powertrain system; an ignition system for the powertrain system comprising in turn a slot integral with the passenger compartment of the road vehicle and configured to receive and accommodate a key for the ignition of the road vehicle; wherein the ignition system comprises a detection system, configured to detect the presence or absence of the key at the slot, and a control unit, which is connected to the detection system and to the powertrain system and is configured to enable the power supply to the powertrain system only when the key is detected at the slot.

An assembly for an aircraft propulsion system includes an open propulsor rotor and a powertrain configured to receive power from a turbine and drive both the propulsor rotor and a compressor section at the same time in a first mode of operation. In a second mode of operation, a brake is applied that stops rotation of the propulsor rotor and the turbine power received by the powertrain drives only the compressor section. In the second mode, the propulsor rotor is stationary or otherwise undriven which effectively prevents rotation of the propulsor rotor. This reduces or eliminates safety risks to ground crews resulting from an open propulsor rotor actively rotating as the aircraft is on the ground.

A vehicle, comprising a power train having a driving electric motor. The driving electric motor comprises a stator assembly, wherein the stator assembly comprises a stator core, the stator core comprising a first end face and a second end face which are arranged opposite each other in the axial direction of the stator core. The stator core further comprises a first stator oil channel and a second stator oil channel which are configured to allow the flow of oil, wherein the oil in the first stator oil channel can flow in the direction from the first end face to the second end face, and the oil in the second stator oil channel can flow in the direction from the second end face to the first end face.

The invention discloses a method, device and equipment for acquiring the rotating speed of a motor and a vehicle, and relates to the technical field of motor control, and the method comprises the steps: determining the radius of a target wheel according to the actual rotating speed of the motor, a first vehicle speed and a first power assembly state parameter under the condition that a position sensor works normally; when it is detected that the position sensor breaks down, a second power assembly state parameter and a second vehicle speed are obtained, and the second power assembly state parameter and the second vehicle speed are data obtained when the position-sensorless control vehicle is switched in; on the basis of the second vehicle speed, the second power assembly state parameter and the target wheel radius, the corresponding initial motor rotating speed when the position-sensorless control is switched in is determined, and the problem that the vehicle stability is poor due to the fact that the motor rotating speed cannot be accurately obtained when the position sensor breaks down and the position-sensorless control is switched in is solved; and the operation stability of the vehicle is improved from the failure of the hardware position sensor to the switching of the position sensorless control.

A vehicle's electrified powertrain includes a battery pack linked to a traction power inverter module (TPIM) converting DC voltage from the battery pack into AC voltage. A rotary electric machine includes a stator energized by the TPIM's AC voltage, enclosing a rotor core capable of rotation. The rotor core contains slots holding conductive bars and permanent magnets, with conductive bars positioned closer to the rotor core's center. The conductive bars and permanent magnets are separated by gaps within each slot. An annular end ring assembly is present at one end of the rotor core, featuring terminal conductors connected to subsets of conductive bars and a secondary coil of a rotary transformer. When the stator is energized, the rotor shaft, connected to the rotor, rotates. The electric machine powers a transmission, which is coupled to the rotor shaft.