975 results about "Drivetrain" patented technology

Tracked vehicles include a track assembly, a powertrain assembly to power the track assembly, and a steering assembly configured to provide a torque to the track assembly. A steering motor is operably coupled to the powertrain assembly to effectuate a steering of the vehicle. A backup steering assembly is configured to provide backup steering capability to the tracked vehicle. The tracked vehicle also includes a plurality of steering modes, as well as a plurality of suspension components configured to increase rider comfort.

An electric vehicle and a powertrain for an electric vehicle are disclosed. According to an embodiment, an electric vehicle includes a steering system with a steering column, and a battery pack having a battery enclosure and a plurality of battery modules housed within the battery enclosure. The battery enclosure defines a slot that extends from at least a top surface of the battery enclosure to receive the steering column.

The invention discloses a power transmission system internal source excitation load and vibration transmission analysis method and system. The method comprises the steps that firstly, gear dynamic meshing rigidity, spline equivalent bearing rigidity and a flexible shaft model are obtained based on parameters of a gear, a spline and a rotating shaft, and then a power transmission system vibration transmission analysis model is established by combining bearing parameters; the method comprises the following steps: respectively obtaining a vibration acceleration signal of each bearing seat position through experiments and simulation, extracting a signal corresponding to each meshing excitation from each bearing seat measuring point signal through a defined comb filter, and calculating the vibration energy contribution of each meshing excitation; finally, through meshing excitation vibration contribution of multiple measuring points and a load transmission rule among parts obtained through simulation, a transmission rule of endogenous excitation load and vibration in the power transmission system is disclosed, vibration characterization of each measuring point in the power transmission system can be accurately obtained based on the method, a theoretical basis is provided for selection of sensitive measuring points, and the method has a wide application prospect. Therefore, support is provided for digital twin modeling and health management of the power transmission system.

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 drivetrain having an axial flux electric motor disposed along a drivetrain axis, the axial flux electric motor disposed to rotate a hollow motor output shaft extending along the drivetrain axis, which hollow motor output shaft engages a first planetary gearset. The first planetary gearset may be engaged and disengaged with a second planetary gearset that is coupled to a differential which, in turn, drives first and second main driveshafts, each of which also extends along the drivetrain axis. The first main driveshaft drives a first wheel hub assembly and the second main driveshaft passes coaxially through the planetary gearsets, the hollow motor output shaft and the axial flux electric motor to drive a second wheel hub assembly.

The present disclosure relates a power transmission system (100) for a work machine (50). The work machine is defined by drive wheels (14) for driving the work machine and a power take off (PTO) shaft (18) for driving a plurality of implements attached to the work machine. The system (100) comprises a first prime mover (10), a second prime mover (16), a first gear (20), a second gear (22), an engaging unit (24) and a switch. The engaging unit (24) is configured to be operatively mounted on the PTO shaft (18). The engaging unit (24) is configured to be displaced on the PTO shaft (18) from an idling configuration to an engaging configuration based on the satisfaction of a predetermined set of conditions. The system provides the compact assembly without any additional requirement of any external transmission assembly. Also, it makes the coupling response quick and provides smooth and noise free shifting and coupling of gears.

Various embodiments of a trash can assembly (e.g., a receptacle configured to receive refuse, recycleable materials, or otherwise), and related methods, are provided. Some embodiments of the trash can assembly include a body component and a lid configured to move between an open position and a closed position. In some variants, the lid can be moved between the open and closed positions by a power operated driving mechanism, such as a motor and / or other drivetrain components. In certain embodiments, the trash can assembly includes a clutch mechanism to facilitate manual operation of the lid while inhibiting or preventing damage to the motor and / or other drivetrain components.

Disclosed herein are systems and methods for energy management. A system, such as a vehicle, includes a plurality of energy storage units that include a supercapacitor and an electrochemical battery. The system includes plurality of energy storage units including a supercapacitor and an electrochemical battery, the supercapacitor comprising a plurality of selectable power sources, and an adder module including a processor. The processor is configured to execute instructions to selectively connect the supercapacitor or the electrochemical battery to an electric drivetrain to propel the vehicle. The processor may be configured to measure the selectable power sources and determine a set of the selectable power sources to connect to the system.

A computer system has processing circuitry to selectively operate the powertrain system in at least a freewheeling mode, in which an output shaft of the engine is non-rotating, and the engine is disconnected from the one or more drive wheels. The processing circuitry is further configured to: determine an opportunity for the freewheeling mode by predicting a feasibility of restarting the engine along an intended route by using a controllable clutch. Predicting the feasibility of restarting the engine by using the controllable clutch includes determining fulfillment of any one of a first restarting condition and a second restarting condition. Determining fulfillment of the first restarting condition includes comparing current total weight of the vehicle with a threshold value indicative of a minimum total weight for avoiding excessive braking of the vehicle during restarting at a high friction road condition with a given total gear ratio. Determining fulfillment of the second restarting condition includes comparing a current drive axle load with a corresponding threshold value indicative of a minimum drive axle load on a drive axle for avoiding excessive wheel slip during restarting at a low friction road condition with a given total gear ratio. The powertrain system is controlled into the freewheeling mode upon the fulfillment of any one of the first restarting condition and the second restarting condition.

A pumping system, comprising: a pump fluid end comprising a plurality of pump chambers, each pump chamber comprising a bore having a reciprocatable plunger disposed therein, a suction valve, and a discharge valve; a prime mover mechanically coupled to the fluid end [by a drivetrain] and configured to reciprocate the plungers; and a controller communicatively coupled to the prime mover, the fluid end, or both and configured to alert a user re a pump malfunction, initiate corrective action of the pump malfunction, or both in response to: (a) an indication of torque reversal during operation of the pumping system, (b) an indication of negative flow rate from the pump during operation of the pumping system, (c) an indication of leakage of (i) a single discharge valve in a 3-plunger pump or (ii) discharge valves associated with two plungers in adjacent firing order, or (d) any combination of (a)-(c).

A drivetrain for a mobility vehicle includes: an electric motor and a gearshift device having a plurality of gear ratios between a first gear ratio and an upper gear ratio, the electric motor being connected to at least one output sprocket of the gear shift device.

A medication delivery device comprising a base plate engaging a cover to form an interior, the interior including a pump drive mechanism for driving medication through the device, a drivetrain engaged to the pump drive mechanism, a magnetic encoder including an encoder hub mechanically coupled to the drivetrain, the encoder hub including a magnet, and a sensor that measures a magnetic field from the magnet to determine a rotational position of the drivetrain.

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 method of controlling an actuator for a drivetrain disconnect assembly includes actuating a solenoid to achieve multiple phases of movement, where the movement may be controlled differently in the different phases. The method includes actuating a solenoid of an actuator to drive a first clutch member along an axis and relative to a second clutch member between a first position, a second position, a third position and a fourth position. Movement of the first clutch member between the second position and the third position is at a faster rate than is the movement of the first clutch member: a) between the first position and the second position; and b) between the third position and the fourth position.

A method for controlling a torque transfer device for a vehicle may include identifying a self-locking state of the torque transfer device. The method further may include determining a drivetrain unlocking torque necessary to unlock the torque transfer device in response to identifying the self-locking state. The method further may include determining a drivetrain compensation torque necessary to counteract a drivetrain unlocking torque dynamic effect of the drivetrain unlocking torque in response to identifying the self-locking state. The method further may include applying the drivetrain unlocking torque and the drivetrain compensation torque using one or more drivetrain components of the vehicle in response to identifying the self-locking state.

The invention discloses a wind generating set transmission chain fatigue load prediction method and system considering sandstorm characteristics, and belongs to the technical field of wind power generation and structure fatigue prediction. According to the method, a wind speed time sequence capable of representing sandstorm evolution characteristics is obtained and serves as external physical excitation to be input into a wind-machine-electricity coupling state space model, and a dynamic torque time sequence of a transmission chain low-speed shaft is obtained through calculation; on the basis, a load spectrum is generated by adopting a rain flow counting method, and the accumulated fatigue damage degree corresponding to the sandstorm event is calculated in combination with the Miner linear accumulated damage criterion and the S-N curve of the low-speed shaft material; and further comparing the damage degree with a preset threshold value, and when the damage degree exceeds the threshold value, automatically generating a preventive active load reduction control strategy aiming at the sandstorm, thereby realizing a closed loop of prediction and control. According to the method, the influence of extreme non-stable wind conditions such as sandstorm and the like on the fatigue damage of the transmission chain can be quantitatively evaluated, and technical support is provided for safe operation and predictive maintenance of a wind turbine generator in extreme weather.

Various embodiments of a trash can assembly (e.g., a receptacle configured to receive refuse, recycleable materials, or otherwise), and related methods, are provided. Some embodiments of the trash can assembly include a body component and a lid configured to move between an open position and a closed position. In some variants, the lid can be moved between the open and closed positions by a power operated driving mechanism, such as a motor and / or other drivetrain components. In certain embodiments, the trash can assembly includes a clutch mechanism to facilitate manual operation of the lid while inhibiting or preventing damage to the motor and / or other drivetrain components.

A transmission arrangement for a drivetrain of an agricultural towing vehicle includes an input shaft, an output shaft, a transmission device, a transmission unit, and an electric machine. The transmission device includes a mechanical transmission branch and a variable transmission branch with a magnetic-electrical epicyclic transmission stage having an internal rotor, an external stator, and an interposed rotatable magnetic modulation ring being rotationally conjointly connectable to a clutch drive shaft. The transmission unit is arranged downstream in the power flow and includes a first clutch and a second clutch connected to the clutch drive shaft and at least four gear sets for establishing at least four gear ratio stages. The electric machine is coupled to the input shaft and configured to transmit electrical power to the external stator, which is configured to rotate the modulation ring.

Disclosed herein are systems and methods for energy management. A system, such as a vehicle, includes a plurality of energy storage units that include a supercapacitor and an electrochemical battery. The system includes plurality of energy storage units including a supercapacitor and an electrochemical battery, the supercapacitor comprising a plurality of selectable power sources, and an adder module including a processor. The processor is configured to execute instructions to selectively connect the supercapacitor or the electrochemical battery to an electric drivetrain to propel the vehicle. The processor may be configured to measure the selectable power sources and determine a set of the selectable power sources to connect to the system.

Systems and methods for controlling vehicle energy efficiency are provided. The system may comprise an ADAS, a navigation sensor configured to collect navigation data, and an electric drive cooling system, comprising a powertrain controller, comprising a processor and a memory, one or more electric motors (EMs), one or more power electronics (PEs), and a temperature control system. The processor may be configured to determine a vehicle route, dissect the route into a plurality of segments, calculate a travel time for each segment, divide the travel time into a number of prediction steps, forming a prediction horizon, establish one or more road conditions, estimate EM motor speed and torque, and estimate a temperature profile for the EMs and PEs across the prediction horizon, and determine one or more control inputs to cause the one or more EMs and the one or more PEs to function within a desired temperature range.

A linear actuator includes a housing; a motor module that includes a motor; and a drivetrain module coupled to the motor module. The drivetrain module includes a ball screw coupled to the motor, a ball nut coupled to and configured to linearly ride on the ball screw during rotation of the ball screw, a rod coupled to the ball nut and configured to extend or retract from the housing based on the ball nut linearly riding on the ball screw during rotation of the ball screw, and an anti-rotation bushing coupled to the rod and including at least one slot configured to engage with and linearly ride on a key coupled to an inner surface of the housing based on the ball nut linearly riding on the ball screw during rotation of the ball screw. The anti-rotation bushing is further configured to restrain the rod against rotation during extension and retraction.

A method for implementing a closed loop of an advanced driving aid device for the lateral control of a motor vehicle includes synthesizing a controller of the closed loop by solving an optimization problem based on a bicycle model of the vehicle. A family of at least two bicycle models of the vehicle is established, these models having, with respect to one another, at least one dispersion chosen from among a dispersion of mass of the vehicle, a dispersion of drift rigidity on a drivetrain of the vehicle, a dispersion of the center of gravity of the vehicle, and a dispersion of the position of the matrix of inertia of the vehicle, the optimization problem being solved on the basis of all models of the family.

A vehicle includes a plurality of ground engaging members and a frame supported by the ground engaging members. A powertrain and a utility or cargo bed are supported by the frame. The cargo bed comprises a first wall extending generally longitudinally and a second wall extending generally longitudinally, and the second wall is laterally spaced from the first wall. The cargo bed further comprises a bed floor extending between the first wall and the second wall and a tailgate. The vehicle further comprises a drain coupled to a rearward portion of the utility bed and the drain is configured to direct fluid from the bed floor to a position rearward of the bed floor and away from at least a portion of the powertrain.

Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

A system for directing the movement of a grain transfer element. The system includes a torque sensor and a processor. The torque sensor is configured to detect a torque of a drivetrain configured to drive the transfer element. The processor is configured to compare the detected torque to a torque threshold, and direct the movement of the transfer element between a folded position and an unloading position. The directed movement of the transfer element is based at least in part on a result of the comparison of the detected torque and the torque threshold.

A powertrain and control method that generates and transfers drive torque to a driveline of a hybrid electric vehicle is provided. The powertrain includes an internal combustion engine (ICE), at least one electric motor powered by a high-voltage battery, an integrated dual charge module (IDCM) and a controller. The controller is configured to: determine whether an external load is connected to the vehicle through the IDCM; determine an available engine-based power; determine whether the available engine-based power is above a threshold to support thermal loads; command power consumption from the high-voltage battery based on a determination that available engine-based power is not above the threshold; command power consumption from the ICE based on a determination that available engine-based power is above the threshold; and command a blending of power between the high-voltage battery and the ICE.

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 method for damping drivetrain vibrations of a wind turbine. The drivetrain has, at least, a rotor and a generator. The method includes receiving a first rotational speed signal at a first location along the drivetrain, the first rotational speed signal being a proxy for rotor speed of the rotor. The method also includes receiving a second rotational speed signal at a second location along the drivetrain, the second location being downwind from the first location, the second rotational speed signal being a proxy for generator speed of the generator. Further, the method includes determining a speed error based on a comparison of the first and second rotational speed signals. Moreover, the method includes determining a torque deviation signal for the wind turbine configured to dampen the drivetrain vibrations when the speed error exceeds a first speed threshold. In addition, the method includes applying the torque deviation signal to the generator to dampen the drivetrain vibrations.

A propulsion system is provided for an aircraft. This propulsion system includes a propulsor rotor, a drivetrain, a first power unit and a second power unit. The drivetrain is coupled to the propulsor rotor. The first power unit includes a first overrunning clutch and a first electric motor. The first overrunning clutch is configured to selectively couple the first electric motor to the drivetrain. The first electric motor is configured to drive rotation of the propulsor rotor through the first overrunning clutch and the drivetrain. The second power unit includes a second overrunning clutch and a second electric motor. The second overrunning clutch is configured to selectively couple the second electric motor to the drivetrain. The second electric motor is configured to drive the rotation of the propulsor rotor through the second overrunning clutch and the drivetrain.

A battery assembly for an electric vehicle is provided that has a housing, one or more battery units, and a mounting system. The housing includes a concave shell extending from an upper portion of the housing toward a bottom portion of the housing. The concave shell is disposed around an internal space. A cover is coupled with an edge of the concave shell. The one or more battery units are disposed within the internal space of the housing. The mounting system is for connecting the battery assembly to a vehicle frame.