6334results 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.

A transmission can include a shaft arrangement including an input shaft configured to couple to a primer mover and an output shaft coaxially aligned with the input shaft; a plurality of drive gears supported by the shaft arrangement and including a first drive gear, a second drive gear, and a third drive gear; a countershaft arrangement including a first and second countershaft supporting a plurality of pinion gears intermeshed with the first, second, and third drive gears; a clutch arrangement including a first clutch assembly and a second clutch assembly operable to lock the first, second, and third drive gears to the shaft arrangement to selectively provide four gear ratios between the input and output shafts.

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 stepless speed change control, and discloses a stepless speed change zeroing control system based on a direct-axis electric drive axle, which comprises a signal acquisition module, a torque analysis module, a zeroing control module, a mode switching module, a reference calibration module and an execution output module. The signal acquisition module acquires a rotating speed signal and torque data and sets a zero setting detection interval; the torque analysis module divides torque compensation nodes and generates feature vectors; the zero setting control module establishes a correction rule and obtains a compensation parameter; the mode switching module identifies an output mode and calculates a rotating speed fluctuation amplitude; the reference calibration module deduces an optimal zeroing threshold value and generates a torque deviation sequence; and the execution output module integrates to form a control scheme. The system achieves torque dynamic compensation, rotation speed fluctuation suppression and threshold value self-adaptive calibration through multi-module cooperation, improves the stability and control precision of an electric drive axle under complex working conditions, and is suitable for stepless speed change control of an electric vehicle.

The invention discloses a gear shifting control method and system for an electric vehicle, and the method comprises the steps: determining a gear adjustment type when a gear adjustment request is received in a driving process; according to the driving data and the gear adjustment type of the electric vehicle, the target torque of the motor is determined; determining a torque adjustment gradient according to the driving data of the electric vehicle, the current required torque of the driver, the required torque of the driver at the last moment and the gear adjustment type; and the motor control unit is called to adjust the motor torque of the electric vehicle according to the current torque, the target torque, the torque adjustment gradient and the gear adjustment type of the motor of the electric vehicle, so that gear shifting operation is completed, the impact feeling of the fuel vehicle during gear shifting can be simulated during gear shifting, and therefore the driving experience of a driver is improved.

An agricultural vehicle includes a driveline, an interface, and a control system. The driveline includes an engine, a transmission, and a power take off (PTO). The interface is configured to removably couple an implement with the agricultural vehicle. The implement configured to perform an agricultural function. The control system includes processing circuitry configured to obtain an indication of a type of the implement that is removably coupled with the agricultural vehicle. The processing circuitry is also configured to determine a profile for at least the transmission based on the type of the implement that is removably coupled with the agricultural vehicle. The profile defines an operating parameter for at least the transmission such that the transmission operates in a specific manner for the type of the implement. The processing circuitry is also configured to operate at least the transmission according to the operating parameter of the profile.

The utility model discloses an electromagnetic clutch, a transmission device and a vehicle, and the electromagnetic clutch comprises a transmission shaft which comprises a shaft body and a plurality of first splines arranged on the peripheral surface of the shaft body; the gear switching piece comprises a sliding sleeve and a plurality of second splines arranged on the inner circumferential surface of the sliding sleeve, the transmission shaft penetrates through the sliding sleeve, and the second splines are in sliding fit with the first splines in the axial direction; the excitation mechanism is used for driving the gear switching piece to move in the axial direction of the transmission shaft so as to be switched among different gears; the reset mechanism comprises two sets of reset assemblies arranged on the two opposite sides, in the axial direction of the transmission shaft, of the second spline, and the reset assemblies are used for driving the second spline to move in the direction of the other set of reset assemblies. According to the electromagnetic clutch, the overall structure is simple and compact.

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.

Methods and systems for detecting a torque transmission failure in an aircraft power plant are provided. The system comprises a hydrostatic transmission for transmitting torque between a first shaft and a second shaft using hydraulic fluid, an a failure detector including a sensor configured to detect a pressure change in the hydraulic fluid. The failure detector is configured to generate an output indicative of the torque transmission failure in response to the pressure change having crossed a threshold.

The utility model discloses an electromagnetic clutch, a transmission device and a vehicle. The gear switching piece is arranged on the transmission shaft in a sliding mode in the axial direction of the transmission shaft and rotates synchronously with the transmission shaft; the excitation mechanism comprises two excitation parts which are arranged at intervals in the axial direction of the transmission shaft, the gear switching part comprises an electromagnetic induction part located between the two excitation parts, and the excitation parts are used for driving the electromagnetic induction part to move in the axial direction of the transmission shaft so as to drive the gear switching part to be switched between different gears. According to the electromagnetic clutch, the two excitation pieces can share the same electromagnetic induction part to drive the gear switching piece to move in the two opposite directions in the axial direction of the transmission shaft, that is, only one electromagnetic induction part needs to be arranged on the gear switching piece, and the electromagnetic induction part is arranged on the gear switching piece. Therefore, the structure of the gear switching piece can be simplified, the cost of the gear switching piece is reduced, and the electromagnetic clutch is simple in structure and low in production cost.

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.

A transmission arrangement for a vehicle, the transmission arrangement comprising a first input shaft comprising a first input shaft gear wheel rotationally fixed to the first input shaft, a second input shaft comprising a second input shaft gear wheel rotationally fixed to the second input shaft, a transmission shaft drivingly connectable to a pair of wheels of the vehicle, the transmission shaft comprising a transmission gear wheel rotationally fixed to the transmission shaft, the transmission gear wheel being arranged in meshing engagement with the first input shaft gear wheel, and a countershaft comprising a first countershaft gear wheel arranged in meshing engagement with the transmission gear wheel, and a second countershaft gear wheel arranged in meshing engagement with second input shaft gear wheel, wherein the second input shaft is drivingly connectable to the transmission shaft via the countershaft.

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.

The invention provides a paddy field tractor power gear shifting transmission system. The paddy field tractor power gear shifting transmission system comprises a power gear shifting mechanism; an input shaft of the main and auxiliary speed change mechanism is in transmission connection with the first output end of the power gear shifting mechanism, and an output shaft of the main and auxiliary speed change mechanism is in transmission connection with a central transmission mechanism; the input end of the PTO clutch is in transmission connection with the second output end of the power gear shifting mechanism; the input end of the PTO speed change mechanism is in transmission connection with the output end of the PTO clutch, and the output end of the PTO speed change mechanism is in transmission connection with a PTO output mechanism. Power is obtained from the second output end of the power gear shifting mechanism through the PTO clutch, and the space of the tractor in the length direction is saved; through the PTO speed change mechanism, the output rotating speed change capacity of the tractor PTO is improved, and the tractor PTO speed change mechanism can be suitable for various PTO operation modes.

The invention discloses a gear shifting gearbox and an asynchronous rolling mill, and relates to the technical field of rolling equipment. The transmission mechanism comprises a main transmission shaft, a first output shaft and a second output shaft, the main transmission shaft, the first output shaft and the second output shaft can be rotationally installed in the box body along the axes of the main transmission shaft, the first output shaft and the second output shaft are driven by the main transmission shaft to rotate, and the rotation directions of the first output shaft and the second output shaft are opposite; the gear shifting mechanism comprises a wheel disc and a plurality of first gear sets, the wheel disc can rotate around the axis of the wheel disc to be connected to the main transmission shaft, the first gear sets are arranged on one end face in the wheel disc, all the first gear sets are in transmission connection with the main transmission shaft, and different first gear sets are switched through rotation of the wheel disc to be in transmission connection with the first output shaft; the main transmission shaft is in transmission connection with the first output shaft through one of the multiple first gear sets, the transmission ratios of the first gear sets are different, and multiple rotation speed ratios exist between the first output shaft and the second output shaft.

A motorized vehicle includes a multi-speed transmission having a plurality of forward gears configured to be selectively engaged to drive the motorized vehicle, an internal combustion engine selectively coupled to the transmission, and a reverse drive system selectively coupled to the transmission to provide torque to drive the motorized vehicle in a reverse direction. The reverse drive system includes an electric motor and a reverse drive gear train configured to be selectively coupled to the transmission. The transmission includes a neutral position in which the internal combustion engine is decoupled from the transmission and freely rotatable relative to the transmission. The reverse drive gear train is configured to be operably coupled to the transmission when the transmission is in the neutral position, such that the reverse drive system is operable to drive the motorized vehicle in the reverse direction without interference from the internal combustion engine.

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.

The invention relates to the technical field of electric drive axle control, and discloses an electric drive axle motor and gearbox integrated control system based on an SIC module. The system comprises a power distribution module, a torque coordination module, a temperature field balancing module, an efficiency optimization module and a system integrated control module. The power distribution module integrates the motor power, the transmission ratio of a gearbox and the axle end torque requirement according to the real-time state of the electric drive axle, distributes regulation and control values and parameters, and generates a power control parameter set; the torque coordination module analyzes the influence of power switching on the system stability, adjusts the torque transmission balance and generates a coordination parameter set; the temperature field module analyzes a thermal field of the SIC module, adjusts heat dissipation parameters and generates a temperature regulation and control result; the efficiency optimization module extracts efficiency fluctuation and energy consumption offset to generate an optimization data set; and the system integration module analyzes the overall efficiency and optimization time, and generates an integrated control data table. According to the system, cooperative control of the motor and the gearbox is achieved, SIC heat dissipation is optimized, and the efficiency and reliability of the system are improved.

The application provides an AMT gear shifting strategy selection method, system, device and medium based on working condition prediction, and belongs to the technical field of vehicle gear shifting control. The method steps are as follows: determining signal characteristic parameters and collecting vehicle driving data to construct a sample signal matrix; performing data standardization on the sample signal matrix; using a principal component analysis method to perform parameter dimension reduction on the standardized sample signal matrix to obtain a dimension-reduced sample signal matrix; performing cluster analysis on the dimension-reduced sample signal matrix to output driving working condition classification results, setting AMT gear shifting strategies for each driving working condition classification result; obtaining real-time vehicle driving data of an actual working condition, updating the working condition classification result, predicting the working condition, matching the predicted working condition with the driving working condition classification result, and selecting a corresponding AMT gear shifting strategy for gear shifting control. The application shortens the gear shifting time, reduces the vehicle impact degree to ensure the smoothness of the vehicle, and improves the gear shifting quality.

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.

The invention relates to a gear shifting control method and system for an AMT emergency accelerator, and the method comprises the steps: continuously monitoring the opening degree of an accelerator pedal and calculating the change rate of the opening degree of the pedal in the driving process of a whole vehicle; the acceleration intention is judged and classified according to different accelerator pedal opening degrees and pedal opening degree change rates; performing corresponding actions according to the acceleration intentions; when the difference value between the engine driving torque and the expected torque is larger than or equal to the torque threshold value and the requirement that the time is larger than the threshold value is met, forced downshift is triggered, the zone bit needing forced downshift is activated, and a vehicle control system VCU judges and responds to downshift operation according to the current vehicle state; the acceleration intention of the driver can be effectively recognized, downshift is executed, and the overtaking acceleration capacity of the vehicle is improved.

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.

Disclosed in the present invention are a gear shifting process control method and system for an electric drive transmission of engineering machinery. The method comprises: in response to having received a gear-shifting signal, acquiring a required gear, a current gear, an electric-motor output torque and a slope signal; on the basis of the electric-motor output torque and the slope signal, determining a gear-shifting load type, and on the basis of the required gear and the current gear, determining a gear-shifting requirement type; if the gear-shifting load type is light- and medium-load gear shifting and the gear-shifting requirement type is an upshift requirement, sending an instruction to execute light- and medium-load upshift control; and if the gear-shifting load type is the light- and medium-load gear shifting and the gear-shifting requirement type is a downshift requirement, sending an instruction to execute light- and medium-load downshift control. During light- and medium-load upshift control or light- and medium-load downshift control, rotation speeds on a pre-clutch side and a post-clutch side are rapidly synchronized, thereby reducing the sliding friction work of a clutch and shortening a gear-shifting time.

A computer system has processing circuitry to control an electrically controllable release bolt of a parking brake actuator of a vehicle is provided. The electrically controllable release bolt adjusts a compression of a parking brake spring of the parking brake actuator. The processing circuitry is configured to determine an activation state for the electrically controllable release bolt based on a pressure status of an air-pressure supply of the parking brake actuator and / or based on a input. When the electrically controllable release bolt is active and in response to detecting a parking brake request or parking brake release request, the processing circuitry is configured to control or to adjust the electrically controllable release bolt to adjust a compression of the parking brake spring based on the detected parking brake request or parking brake release request.