3818results about "Gearing control" patented technology

A vehicle having a primary mover, a charging system, multiple electric loads, and a controller. The charging system includes a charge storing device and an alternator. The alternator is configured to convert mechanical energy generated by the prime mover into electrical energy to charge the charge storing device. The multiple electrical loads are electrically coupled to the charging system via a power distribution module. The controller is communicably coupled to the charging system and is configured to receive an indication that an electrical output of the charging system is unable to provide sufficient electrical energy to each electrical load in the electrical loads. The controller is also configured to provide a control signal to the power distribution module in response to the indication. The control signal is configured to cause the power distribution module to decouple at least one of the electrical loads from the charging system.

A method for detecting a safe state of a switchable valve of a hydraulic system of an actuator in a motor vehicle includes the at least one first switchable valve, which is actuated by being energized, a pump, and a controller which controls at least the first switchable valve and the pump. The pump delivers the fluid to a first load in a first rotational direction and to at least one second load in a second rotational direction.

The invention discloses a speed reducer self-adaptive torque control method and system based on load identification, and relates to the technical field of speed reducer control. The method comprises the steps of collecting multi-source time sequence sensing data in real time when the speed reducer operates; performing time domain and frequency domain feature extraction on the data, and identifying current load features including load levels and types; predicting a future load change trend based on the load characteristics and historical data; a self-adaptive torque control instruction is generated according to the load characteristics, the change trend and the health state parameters, and the output torque is dynamically adjusted; and recording instruction execution efficiency data, and optimizing a load identification and torque control strategy by adopting a strategy gradient reinforcement learning algorithm. The system realizes the functions through cooperation of multiple modules. The problem that torque control of a traditional speed reducer cannot adapt to dynamic load changes is solved, precise self-adaptive adjustment of torque output is achieved, the operation efficiency and equipment safety are improved, and the service life is prolonged.

The invention relates to the technical field of vehicle transmission power generation, in particular to a vehicle-mounted engine power takeoff driven parking power generation device which comprises a power takeoff and a power generator, a transmission shaft component is arranged between the power takeoff and the power generator, and the power takeoff drives the power generator to work and generate power through the transmission shaft component; the transmission shaft component comprises a first split shaft and a second split shaft which are coaxially arranged, an axial lock sleeve is fixedly arranged on the first split shaft, and the axial lock sleeve axially limits the second split shaft; according to the parking power generation device driven by the power takeoff of the vehicle-mounted engine, a vehicle can have higher safety redundancy, and when the power takeoff breaks down and cannot be connected with power or disconnected from the power, the working condition can be automatically recognized, and power takeoff is disconnected or power takeoff is connected in an emergency.

The invention discloses a transmission mechanism and an all-terrain vehicle using the transmission mechanism, the transmission mechanism comprises a linkage assembly, an output shaft, two sets of transmission parts, a sensor module and a controller, the linkage assembly is connected with the output shaft, and the two sets of transmission parts are arranged on the two sides of the linkage assembly respectively; each transmission part comprises a first transmission part, a second transmission part, a supporting part, a first friction part, a second friction part, an extrusion module and a driving unit, the first transmission parts are connected with the output shaft, the second transmission parts are rotationally connected with the supporting parts, and the first friction parts are connected with the first transmission parts; the second friction piece is connected with the second transmission piece and abuts against the first friction piece, the extrusion module abuts against the first friction piece or the second friction piece, the driving unit is connected with the extrusion module, and the controller is electrically connected with the driving unit and the sensor module. According to the transmission mechanism, the power loss is reduced, the all-terrain vehicle is helped to escape, and the control stability of a driver is improved.

An additive manufactured (AM) hydraulic control assembly includes a first AM hydraulic passage having a first tubular wall defining a first fluid passage, a second AM hydraulic passage integrally formed with the first AM hydraulic passage and having a second tubular wall defining a second fluid passage, and an AM wall integrally formed with the first and second AM hydraulic passages and fluidly separating the first and second fluid passages. At least one of (i) a hydraulic control orifice is formed in the AM wall and configured to regulate fluid flow and pressure between the first and second fluid passages, and (ii) a ball seat is formed in the AM wall and a check ball is disposed in one of the first and second fluid passages and configured to selectively seal against the ball seat to facilitate preventing fluid flow therethrough.

The invention relates to the technical field of AMT gearbox control, in particular to an AMT gearbox control method, system and equipment in a braking state and a medium, and the method comprises the steps that when a vehicle is in a braking deceleration state, the stepping duration of a brake pedal, the actual vehicle speed, the actual acceleration of the vehicle and the rotating speed of an engine are obtained; whether the braking intention of the driver is emergency braking or stable braking is judged based on the stepping duration of the brake pedal and the actual acceleration of the vehicle; and based on the braking intention, the gear of the AMT gearbox and the separation state of a clutch are controlled till braking is finished. Wherein the current gear is maintained during emergency braking, and a clutch is controlled to be separated according to an engine rotating speed threshold value; during stable braking, after the rotating speed of the engine meets the condition, whether downshift is conducted or not is judged according to the actual vehicle speed, and a clutch is controlled to be separated. The brake intention of a driver can be accurately recognized, differential control is executed, and therefore the brake efficiency is effectively improved, engine flameout is prevented, and the driving smoothness is improved.

The embodiment of the invention relates to a control method and device of a gear shifting motor, equipment and a storage medium, and belongs to the technical field of vehicles. The method comprises the steps that in response to a received gear shifting motor driving instruction, a driving duty ratio and a target position are analyzed from the gear shifting motor driving instruction; in each control period, a compensation coefficient is determined according to the current position and the target position of the gear shifting motor, a driving voltage is determined according to the power supply voltage, the driving duty ratio and the compensation coefficient, and the gear shifting motor is driven by the driving voltage; wherein in the process that the gear shifting motor rotates from the initial position to the target position, the change trend of the compensation coefficient is decreased progressively. According to the embodiment of the invention, the rotating speed of the gear shifting motor can be gradually reduced, overshoot is avoided, the risk that the coded disc stops at the junction position of the two coded disc areas is further reduced, the probability that the position encoder detects that a new position does not exist on the coded disc is reduced, and therefore the gear switching success rate can be improved.

The invention discloses an NGW planetary speed change device and a speed change gear shifting method. The device comprises an input shaft, a sliding gear sleeve, a multi-stage planetary transmission gear pair and an output gear ring. The multi-stage planetary transmission gear pair and the output gear ring are sequentially connected, a planet carrier of the multi-stage planetary transmission gear pair is fixedly connected with the outside, the sliding gear sleeve is provided with an inner spline and an outer spline, one end of the input shaft is connected with the input motor, and the other end of the input shaft is connected with a spline inner hole of the sliding gear sleeve. An outer spline of the sliding gear sleeve is connected with the input end of the multi-stage planetary transmission gear pair in a matched mode, and the output end of the multi-stage planetary transmission gear pair is connected with the output gear ring in a matched mode. The input motor drives the input shaft and the sliding gear sleeve to be connected with different levels of planetary transmission gear pairs, so that the transmission route of torque in the planetary speed change device is changed, and gear shifting and speed changing are achieved. The gear shifting mechanism has the advantages of compact structure, simple gear shifting mode, stable performance and the like, and meanwhile, the defect that hydraulic elements are difficult to manufacture is avoided.

A drive unit has first and second electrical machines arranged axially parallel, a manual gearbox arranged axially parallel to the electrical machines, a differential, a drive shaft, an output shaft, and a positive-locking shift unit having a first shift element, a second shift element, and a sliding sleeve displaceable via a first actuator into one of three shift positions. In a first shift position, the first shift element is closed and the second electrical machine is connected to the drive shaft with an actuating effect; in a second shift position, both shift elements are open and the second electrical machine is decoupled from the gearbox; in a third shift position, the second shift element is closed and the second electrical machine is connected to the output shaft with an actuating effect. The drive shaft is hollow, and the output shaft is arranged within the drive shaft.

A method for operating a motor vehicle (100) is described, wherein the motor vehicle (100) has a shift lever (10) with a first lever (1) on a first side of a steering wheel (3) of the motor vehicle (100) and a second lever (2) on a second side of the steering wheel (3), wherein in a first operating state of the motor vehicle (100) a forward gear is selected with the first lever (1) for driving the motor vehicle (100) forward and a reverse gear is selected with the second lever (2) for driving backward, wherein in a second operating state of the motor vehicle (100) a direction indicator (4) of the motor vehicle (100) is switched with the first lever (1) so that it indicates a change of direction of the motor vehicle (100) to the first side and with the second lever (2) the direction indicator (4) is switched so that it indicates a change of direction of the motor vehicle (100) to the second side.

An electric drive for a vehicle comprises: an electric machine, a stator connected to a housing and comprising stator end-windings, a rotor rotatable relative to the stator, and a driveshaft connected to the rotor; a transmission to transmit a rotary movement from the driveshaft to a driveline; a sump containing fluid to cool and / or lubricate the electric machine and the transmission; a hydraulic arrangement comprising at least one bi-directional pump, a first suction line hydraulically connected with the pump, a stator path for cooling the stator, a second suction line connected with the pump, and a transmission path for cooling the transmission; a valve arrangement with multiple valves configured such that fluid is either supplied from the sump through the first suction line to the stator path, or through the second suction line to the transmission path.

According to the electronic gear shifter for the motorcycle and the control method of the electronic gear shifter, on the premise that the wheel type is not limited, an interface and a criterion set can cover common vehicle type differences (side supporting / parking, clutch types, actuator types and the like), and platform splitting is reduced. A cuttable combination of CAN / LIN / discrete I / O is supported; parameterization calibration of threshold, overtime, retry, prompt strategy and the like facilitates rapid landing across vehicle types. Aiming at strong vibration and power supply fluctuation characteristics of the motorcycle, an anti-interference and power-down strategy, key signal multi-source consistency check and a sub-scene degradation path are emphasized, availability and consistency are kept under the working conditions of raining / dust / electromagnetic interference / starting voltage drop and the like, and robustness is enhanced. A mechanical connecting rod is replaced by electronic signal transmission, wire harness and mechanism redundancy is reduced, the mechanical arrangement complexity is reduced, and meanwhile, the NVH problem (such as vibration and abnormal sound) caused by mechanical friction and the defect of poor assembly consistency are avoided.

A gearing assembly (12) for a brake actuator (10), comprising the following features:a drive element (33),a first driven element (36),a second driven element (38), anda gearing output element (40),wherein, with respect to the drive element (33), the first driven element (36) has a different transmission ratio than the second driven element (38),wherein the first driven element (36) can be coupled to the gearing output element (40) by a first clutch (42), which comprises a first drive body (50) and a first driven body (52), andwherein the second driven element (38) can be coupled to the gearing output element (40) by a second clutch (46), which comprises a second drive body (62) and a second driven body (64) and is designed as an overrunning clutch,and a brake actuator (10) comprising a gearing assembly (12).

The invention provides a separation control method and device and a storage medium. The method comprises the steps that a gear shifting request sent by a gearbox control unit is received; the current fuel injection amount is detected; if it is detected that the current fuel injection amount is smaller than the preset fuel injection amount, the current remaining fuel amount and the current engine rotating speed are obtained; based on the current residual fuel quantity and the current engine rotating speed, the target moment is determined, and the target moment is the moment when the engine torque is reduced to the first preset engine torque; and the target interaction information is sent to the gearbox control unit, the target interaction information comprises the target moment, and the target moment is used for the gearbox control unit to control the clutch to be separated. According to the embodiment of the invention, the target moment is determined through the current residual fuel quantity and the current engine rotating speed, so that the problem of improper separation time caused by clutch separation based on the output torque under the condition that the output torque is inaccurate is avoided, and the accuracy of the clutch separation time is improved.

A utility vehicle includes a frame assembly, a plurality of ground-engaging members supporting the frame assembly, and a powertrain assembly operably coupled to the ground-engaging members and including a prime mover and a continuously variable transmission. Additionally, the utility vehicle includes an operator defined by a portion of the frame assembly and including seating for at least an operator. The utility vehicle also includes an electrical assembly comprising an electric motor operably coupled to the continuously variable transmission. The electric motor is positioned rearward of the operator area.

The invention discloses a double-speed-ratio transmission planetary driving gearbox, which relates to the technical field of planetary gearboxes and comprises a pressurizing mechanism, a linkage mechanism and a positioning mechanism. According to the invention, online dynamic speed ratio switching of the planetary gearbox under the continuous operation condition is realized, a set of intelligent execution mechanism based on pneumatic driving and magnetic coupling is integrated in the input shaft, and a power transmission path is quickly changed from a high-speed direct connection mode to a high-speed direct connection mode to a high-speed direct connection mode. The planetary reduction mechanism comprising the sun gear, the planet gear and the gear ring locked by the positioning mechanism is seamlessly switched, the output rotating speed is remarkably reduced finally, the torque is multiplied finally, the whole switching process is smooth and rapid, transmission of input power does not need to be interrupted, and the switching efficiency is improved. The operation efficiency and the self-adaptive capacity of the equipment in the continuous technological process are greatly improved, and production interruption, capacity loss and extra energy consumption caused by frequent start and stop are fundamentally avoided.

The present application relates to the technical field of speed reducer, especially to a hollow composite planetary speed reducer, which comprises a machine shell, an input shaft rotatably connected to the machine shell, a sun gear fixedly connected to the input shaft, an outer gear ring installed in the machine shell, three planetary gears meshing between the outer gear ring and the sun gear, a planetary carrier rotatably connected to the three planetary gears, a worm fixedly connected to the planetary carrier, a rotating shaft rotatably connected to the machine shell, a worm wheel meshing with the worm and fixedly connected to the rotating shaft, and an output shaft rotatably connected to the rotating shaft. The present application combines the planetary speed reducer with the worm and worm gear speed reducer to form a composite speed reducer, which solves the self-locking defect of the planetary speed reducer and the low efficiency problem of the worm and worm gear speed reducer, and realizes secondary speed reduction, thereby increasing the transmission ratio and reducing the overall size of the device, improving the working efficiency and safety of the speed reducer.

A parking pawl module (10) comprises: a first sun gear (230a); a first actuator (100) configured to actuate the first sun gear (230a); a transmission (200) comprising: a transmission housing (210); at least one transmission gear carrier (220, 220a, 220b) received by the transmission housing (210), wherein the at least one transmission gear carrier (220, 220a, 220b) has a first carrier side (221a) and a second carrier side (221b); at least a plurality of planet gears (222, 222a, 222b) which are supported on the first support side (221a) of the at least one gear carrier (220, 220a, 220b), wherein the at least plurality of planet gears (222, 222a, 222b) are in mesh with the first sun gear (230a); and an actuating element (240, 240c) which is connected to the transmission (200);a toggle lever (310) defining a lever opening (254) configured to receive the actuating element (240, 240c) and to allow movement of the actuating element (240, 240c) within the lever opening (254); and a shaft (314) attached to the toggle lever (310); wherein the first actuating member (100) controls a rotary movement of the at least one gear carrier (220, 220a, 220b), the plurality of planet gears (222, 222a, 222b), and the actuating element (240, 240c), and a linear movement of the toggle lever (310) and the shaft (314).

A differential module having a first axis of rotation and including a planet carrier, a planet pinion pivotably mounted on the planet carrier, and a first and a second sun gear pivoting about the first axis of rotation. Also included is a first and a second wheel-driving half-shaft, the first wheel-driving half-shaft being rotationally connected to the first sun gear. A sliding sleeve is configured to occupy, selectively, four axial positions for the coupling of the differential module.

Snowmobile transmission, including a housing with a cover, an input shaft and an output shaft arranged inside the housing, and a chain transmission drive including a chain connecting a drive sprocket arranged on the input shaft to a driven sprocket arranged on the output shaft, a reverse gear axle about which a reverse gear sprocket freely rotates also arranged inside the housing, the reverse gear sprocket engaging with the chain, and a reverse gear engaging with a movable gear arranged on a grooved sleeve of the input shaft, which is movable by tilting an inner switching fork and being driven by an axle with a lever, an adjusting rod, an outer switching fork, wherein rotation of the outer switching fork is restricted by a removable sector attached to the housing cover, and an adjusting screw arranged on the housing, abutting against a support sleeve and fixed by a cotter pin.

The invention discloses a novel cross-country forklift, which relates to the technical field of hydraulic hybrid power systems of engineering machinery and comprises the following modules: a power module for providing driving power of the whole forklift; the power division module is used for realizing double-flow power division and convergence and comprises an integrated mechanical gear speed change unit and a hydraulic stepless speed change unit; the mechanical transmission module is used for transmitting the power of the mechanical direct drive branch to the drive part; the hydraulic execution module is used for realizing a dynamic characteristic cooperative control technology and matching the flow of a hydraulic system with a mechanical gear speed ratio by establishing a speed-torque-pressure three-parameter coupling model; a composite speed change module; and a control and management module. By adopting double-flow power division and convergence, power division of 70% mechanical energy direct drive and 30% hydraulic energy speed regulation is achieved, and the traditional transmission efficiency bottleneck is effectively broken through. And under the rugged terrain and the variable-load working condition, the energy utilization rate can be increased, fuel consumption is reduced, and the whole machine has higher economical efficiency and durability.

An electromechanical actuator including an electric motor housed in a housing, the electric motor acting on a torque output element capable of being coupled to an element of a transmission gearbox of a motor vehicle. The torque output element is connected to the electric motor by drive means, and the torque output element is a main shaft configured to rotate about its axis of rotation with a first end and a second end. The actuator further includes a circuit board located in the housing, the circuit board comprises a sensor which faces a magnet mounted on a support coupled to the second end of the main shaft by means of a first swivel-linear mechanism.

The speed reducer gear shifting shaft structure comprises a gear shifting shaft, a gear shifting gear, a needle roller thrust bearing, a pre-tightening assembly, a sliding sleeve and a gear shifting fork, the gear shifting gear, the sliding sleeve and the pre-tightening assembly are arranged on the gear shifting shaft, the gear shifting gear is arranged on the gear shifting shaft through the needle roller thrust bearing, and the pre-tightening assembly is arranged on the gear shifting shaft through the sliding sleeve. The pre-tightening assemblies make contact with the gear shifting gears correspondingly, and thrust of the gear shifting gears is pre-tightened through the pre-tightening assemblies. Sliding friction of the end face of the gear shifting gear is converted into rolling friction through the needle roller thrust bearing, and end face abrasion is greatly reduced. And due to the constant pre-tightening force, early failure caused by too tight or too loose bearings is avoided, the reliability of the speed reducer is remarkably improved, and the service life of the speed reducer is remarkably prolonged.

The invention relates to a disengagement device, in particular to a mechanical disengagement device for a subway gear box, and solves the problems that according to an existing speed reducer dynamic disengagement device, when inner teeth of a gear sleeve are combined with outer teeth of combination teeth, a synchronous ring is used for a long time, friction force is reduced, and the failure rate is increased. The outer spline section is arranged on the axle, the out-of-gear sliding sleeve is meshed with the outer spline section of the axle through the inner spline on the inner wall and is in sliding fit with the axle in the axial direction, and when the traction motor breaks down, the shifting fork is driven by the executing mechanism to shift the out-of-gear sliding sleeve, so that the outer spline of the out-of-gear sliding sleeve is separated from the inner spline of the sliding groove of the driven gear; at the moment, torque is input from the axle and transmitted into the out-of-gear sliding sleeve, the out-of-gear sliding sleeve is not meshed with the driven gear any more, the driven gear is only rotationally connected with the axle, torque transmission is interrupted, the structure is simple, meshing of the out-of-gear sliding sleeve and the driven gear does not need a synchronizing ring, and fault points are reduced.

The invention relates to the technical field of vehicle transmission systems, in particular to a dual-motor integrated power gear shifting gearbox system which comprises a power driving motor, an oil pump driving motor, a gearbox body, a fixed shaft type two-gear power gear shifting gearbox body, a hydraulic system and a control system. The double-clutch power gear shifting technology is matched with the cooperative control strategy, seamless connection of power in the gear shifting process is achieved, the phenomenon of power interruption of a traditional AMT gearbox is avoided, the AMT gearbox is particularly suitable for climbing, heavy-load operation and other scenes with the extremely high requirement for power continuity, the operation safety and efficiency are remarkably improved, and the application range is wide. The linear speed of a key transmission part is greatly reduced. The linear speed of the gear is a core influence factor of noise and heating, the sliding friction of the tooth surface can be directly reduced by reducing the linear speed, the meshing impact energy is reduced, and the meshing frequency is kept away from the most sensitive frequency band of human ears. Actual measurement shows that the layout change can bring noise reduction exceeding 10dBA.

Aspects of the present invention relate to a controller for controlling a differential lock system of a vehicle with a plurality of wheels. The controller comprises one or more processors collectively configured to receive a wheel status information specific to at least two wheels. Further, it is configured to determine, based at least on the wheel status information, a differential lock setpoint, indicating whether a differential lock should be engaged or disengaged. Also, it is configured to output the differential lock setpoint to the differential lock system to control the differential lock system to engage or disengage the differential lock based on the differential lock setpoint. The invention further relates to a differential lock system, an axle assembly, a method and computer readable instructions.

The invention relates to a hydrostatic driving speed regulation system, method, equipment and medium for a harvester, and relates to the technical field of mechanical driving speed regulation, the system comprises a closed hydraulic loop composed of a walking pump and a variable displacement motor, the walking pump is driven by an engine, and a two-position four-way proportional reversing valve group is arranged on the hydraulic loop; a rotating speed sensor is mounted on the variable displacement motor; the controller is used for acquiring real-time state information of the harvester and determining a speed regulation control strategy based on the real-time state information, and the speed regulation control strategy is a first control strategy or a second control strategy; and the speed regulation control strategy is sent to a two-position four-way proportional reversing valve set, so that the two-position four-way proportional reversing valve set adjusts the displacement of the walking pump and the displacement of the variable displacement motor according to the speed regulation control strategy. The technical effects that the speed regulation control strategy is accurately determined according to the real-time state information of the harvester, the displacement of the walking pump and the displacement of the variable displacement motor are reasonably adjusted, and the driving speed regulation requirements of the harvester under different working conditions are met are achieved.

The invention provides a gearbox control method and device, electronic equipment and a computer readable storage medium. The method comprises the steps that a first damage map of a first transmission chain and a second damage map of a second transmission chain are obtained; the current working condition of the dual-motor drive gearbox, the first motor rotating speed and the first motor torque of the first transmission chain and the second motor rotating speed and the second motor torque of the second transmission chain are obtained; determining a first damage value of the first transmission chain under the current working condition according to the first damage map, the first motor rotating speed and the first motor torque; determining a second damage value of the second transmission chain under the current working condition according to the second damage map, the second motor rotating speed and the second motor torque; and under the condition that the difference value of the first damage value and the second damage value is larger than a preset threshold value, when the double-motor drive gearbox has the single-motor drive requirement next time, the single-motor drive working condition is switched to the transmission chain with the small damage value. The service life of the gearbox can be prolonged.

The invention provides a clutch control method and system, a vehicle and a medium, and belongs to the technical field of vehicle transmission control, and the method comprises the steps that a position deviation value sequence of a clutch is obtained, and the position deviation value sequence comprises a plurality of position deviation values; the position deviation value is equal to the difference value between the target position and the actual position of the clutch; pID control parameters are determined according to the working state of the clutch; performing filtering processing on the position deviation value sequence based on a least square method to obtain a filtering differential term coefficient; obtaining a variable speed integral item coefficient according to the position deviation value sequence, the variable speed integral threshold range and the integral item coefficient; generating a control signal according to a proportional term coefficient, the filtering differential term coefficient and the variable speed integral term coefficient; and the control signal is output to a clutch executing mechanism, and closed-loop control over the position of the clutch is achieved. According to the method, overshoot is remarkably reduced, and the robustness of clutch control is improved.