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12 results about "Stall torque" patented technology
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Stall torque is the torque produced by a mechanical device whose output rotational speed is zero. It may also mean the torque load that causes the output rotational speed of a device to become zero, i.e., to cause stalling. Electric motors, steam engines and hydrodynamic transmissions are all capable of developing torque when stalled.
Torque measuring mechanism and torque measuring device
This application provides a torque measuring mechanism and a torque measuring device, relating to the field of torque testing technology. The torque measuring device includes a housing and a measuring component; the housing includes a first cavity and a second cavity coaxial and connected along a first direction, the first cavity being used to at least partially accommodate a motor; the measuring component is used to measure the stall torque of the motor and is at least partially engaged in the second cavity, with one end of the measuring component facing the first cavity being detachably connected to the motor.
Owner:LENOVO (BEIJING) LTD
A method and system for identifying a loading condition of a loader equipped with an at transmission
The application provides a loader with an AT transmission shovel loading condition identification method and system, the method comprising: obtaining the turbine speed and the pump speed of the hydraulic torque converter in the loader; determining the stall torque of the loader according to the turbine speed and the pump speed; obtaining the input shaft speed of the AT transmission; when the stall torque and the input shaft speed both satisfy the preset condition, determining that the current condition of the loader is the shovel loading condition; and then the shovel loading condition of the loader can be identified through the determination logic according to the turbine speed, the pump speed and the input shaft speed, the turbine speed, the pump speed and the input shaft speed are relatively stable and continuous, and are less affected by environmental factors, so that the influence of the unstable change rate caused by the output shaft speed fluctuation is avoided; the identification error is reduced, and the accuracy of the condition identification is improved.
Owner:WEICHAI POWER CO LTD +1
Hands-free motorized harmonica positioner
A harmonica positioning device includes a yoke, support member, gear arrangement, and motor. The yoke encircles the musician's neck. A first portion of the harmonica support member releasably couples to a harmonica, and a second portion secures to a shaft that co-rotates with one of the gears, which are housed within the yoke. A wireless foot pedal controls the motor to drive the gears to rotate to thereby rotate the harmonica between a first position and a second position. The motor and gear arrangement is particularly configured to provide friction and a stall torque that holds the harmonica support member in an upright position even while the user is playing the harmonic, without using a dedicating locking mechanism. An encoder detects rotation speed and rotation angle of the motor to control the motor to limit movement of the harmonica support member to at least the first and second positions.
Owner:GIMBELMAN STEVEN
System and method for managing stall torque limit
The present disclosure relates to systems and methods for managing stall torque limits. A system for managing motor torque in a vehicle determines a stall speed amount corresponding to a motor speed and determines a torque limit based on the stall speed amount. The system determines a desired torque value and determines whether to generate a modification to one or more baseline torque commands based on the desired torque value and the torque limit. If the baseline torque command is not modified, the system generates the one or more baseline torque commands corresponding to one or more motors. If the baseline torque is modified, the system generates one or more modified torque commands corresponding to the one or more motors based on the modification and based on the one or more baseline torque commands. The modified torque commands can include a minimum value less than the torque limit and a maximum value corresponding to a wheel slip torque.
Owner:RIVIAN HOLDINGS LLC
Simulation method of comprehensive environmental reliability of motor working state based on ANSYS
The present application provides a motor operating state comprehensive environmental reliability simulation method based on ANSYS, comprising the following steps: establishing a geometric model of the motor stator and rotor assembly based on ANSYS; determining the materials of the stator and rotor assemblies and meshing the stator and rotor assemblies respectively, loading and setting the piezoelectric properties of the piezoelectric ceramics and applying constraint boundaries to obtain the motor electromechanical model; obtaining the temperature field, random vibration field, and centrifugal force field of the motor; selecting three data modules to read the temperature field, random vibration field, and centrifugal force field respectively, and using the three data modules as parameter setting options for the motor electromechanical model; inserting the frequency response curve function, impedance curve function, and node force function to obtain the operating frequency and operating amplitude, voltage component impedance, and stall torque under the actual operation of the motor. The motor operating state comprehensive environmental reliability simulation method based on ANSYS provided in the present application can obtain more comprehensive motor output characteristics under a comprehensive environment.
Owner:BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
An electric motor with a speed reduction mechanism
The present invention discloses an electric motor with a reduction mechanism, which relates to the technical field of electric motors. The technical solution thereof includes a motor body, wherein the motor body is rotatably connected to a helical gear driven to rotate by an output end, an output plate for outputting the rotational force of the helical gear is provided on one side of the helical gear; an elastic buffer block for buffering the force applied by the helical gear to the output plate is provided between the output plate and the helical gear; an output shaft is coaxially connected to the helical gear, and the output shaft is used to connect to the output plate to output the rotational force of the helical gear; a mating groove is provided on one side of the helical gear, and the output plate is provided with an output portion inserted into the mating groove, and two sides of the buffer block respectively abut against the sides of the output plate and the helical gear facing each other, and both ends of the buffer block are in contact with the output plate. The present invention has the effects of impact resistance and improving quiet performance and stall torque of the motor.
Owner:NINGBO JINGCHENG MOTOR CO LTD
Motor stalling control method, device and equipment, storage medium and program product
PendingCN121417770AElectronic commutation motor controlElectric motor controlControl engineeringElectric machinery
Owner:SUZHOU INOSA UNITED POWER SYST CO LTD
A performance automatic testing device and method for a mine nut installer
An automatic testing device and method for the performance of mining nut installers includes: a test platform, and a rotational performance testing device, a maximum installation and disassembly torque testing device, a mechanical bench, a hydraulic system, and a measurement and control system mounted on the test platform. The rotational performance testing device is used to test the rated torque and stall torque of the mining nut installer; the maximum installation and disassembly torque testing device is used to test the impact frequency and impact torque of the mining nut installer; the mechanical bench is used for fixing and moving the mining nut installer; the hydraulic system is used to control the movement of the mechanical bench; and the measurement and control system is used to realize the automatic testing of the mining nut installer. This invention effectively solves the key problems of high reliance on manual labor, poor repeatability of experimental results, and low overall testing efficiency in existing testing processes, significantly improving the automation level and reliability of the testing process.
Owner:COAL SCI (BEIJING) TESTING TECH CO LTD
A method and system for controlling vehicle launch based on clutch torque
The application provides a method and system for controlling vehicle starting based on clutch torque, and relates to the technical field of vehicle starting control, and comprises the following steps: S1, an electronic control unit obtains an initial starting torque of a clutch according to an engine speed, a preset hill compensation amount and a preset engine speed-torque correspondence relationship; S2, the electronic control unit corrects the initial starting torque to obtain a corrected starting torque according to a vehicle weight compensation coefficient matched in a preset standard vehicle weight data-vehicle weight compensation coefficient correspondence relationship list according to vehicle weight data; S3, the electronic control unit limits the corrected starting torque in real time to obtain a limited starting torque according to a preset torque change rate threshold; and S4, the electronic control unit corrects the limited starting torque according to a clutch stall torque and an aging compensation amount to obtain a target starting torque, and controls the clutch to control vehicle starting according to the target starting torque. The beneficial effect is to improve starting comfort.
Owner:MARELLI CHINA
An active anti-slope method for electric vehicles based on multi-phase motors
The present invention relates to an active hill-rolling prevention method for electric vehicles based on a multi-phase motor, comprising a multi-phase motor system. When the vehicle enters the active hill-rolling prevention mode, the system first outputs a maximum stall torque to maintain the vehicle stationary, then monitors whether the vehicle speed is falling back, determines the road condition, and utilizes the multi-mode stall of the multi-phase motor system. In combination with the ASC mode, the active hill-rolling prevention method for electric vehicles can formulate adaptive strategies for different slope conditions, thereby effectively avoiding the risk of overheating of motor windings, motor controllers, power devices, etc., as well as the risk of the vehicle rolling downhill.
Owner:XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
Quantitative test method and system for peak stall torque of a robot joint module
The application discloses a kind of quantitative test method and system of robot joint module peak stall torque, it is related to robot joint performance evaluation technical field, comprising: extracting the torque time history curve of joint module, peak stall torque is defined as controlled low-frequency fatigue loading process, the mapping model of torque amplitude and failure cycle number is established;Test system is constructed, torque-current static calibration is carried out;Specific excitation function is embedded in servo driver current loop;Bus voltage and rotational speed change rate are monitored in real time, using back electromotive force compensation algorithm and combining energy dissipation discharge loop, the voltage and current impact of unloading moment is inhibited;Repeatedly loaded until structure is damaged, cycle number is recorded, peak torque-life curve is drawn, as whole machine life prediction basis.The application realizes the quantitative correlation of peak stall torque and fatigue life, realizes the quantitative evaluation from static index to dynamic life, provides basis for robot whole machine life prediction, improves test precision.
Owner:LUMING ROBOT TECHNOLOGY (SHENZHEN) CO LTD
Electric drive stall torque enhancement based on vehicle level input
The present invention relates to electric drive stall torque enhancement based on vehicle level inputs. A method for increasing a default electric stall torque limit in a motor vehicle having an electrified powertrain including a traction power inverter module (TPIM) connected to an electric traction motor includes receiving, by a controller, a vehicle level input. The controller is programmed with a default electric stall torque limit. The method includes selecting, by the controller, an inverter control strategy as a selected inverter control strategy responsive to the vehicle level input, the strategy including temporarily increasing the default electric stall torque limit while applying a pulse width modulation (PWM) type at a corresponding PWM switching frequency. The method further includes controlling, by the controller, an output state of the TPIM and the electric traction motor using the selected inverter control strategy for a calibrated duration of time. A motor vehicle includes the controller, a wheel, the TPIM, and the traction motor.
Owner:GM GLOBAL TECHNOLOGY OPERATIONS LLC