18 results about "Actuator torque" patented technology

A method of controlling a vehicle propulsion system comprising at least two motion support devices, wherein each motion support device comprises an actuator configured to apply a torque on at least one wheel of a vehicle during propulsion and to generate electric power during braking. A lumped efficiency value for the actuators is determined based on an aggregated mechanical power level at a previous point in time, an aggregated electrical power level at the previous point in time, and an estimated actuator torque distribution between the actuators, whereby a power distribution for the actuators is allocated based on the lumped efficiency value and a torque request, and control signal is transmitted to each of the at least two motion support devices to control the respective actuator based on the allocated power distribution.

An electric actuator torque detection system is characterized in that the upper end of a main body rack is provided with a mounting panel, the upper end of the mounting panel is provided with a detection flange, and the lower end of the detection flange is provided with a first coupling; the detection flange is in transmission connection with the first coupler; the device further comprises a control cabinet, and a main controller is arranged in the control cabinet. The lower end of the first coupler is connected with a torsion sensor, the torsion sensor is electrically connected with the main controller, and the torsion sensor is used for detecting the torsion value of the electric actuator; a second coupler is connected to the lower portion of the torsion sensor, the second coupler is connected with a magnetic powder brake, the magnetic powder brake is electrically connected with the main controller, and the magnetic powder brake is used for applying preset torque to the electric actuator; the main controller is used for collecting detection data of the torsion sensor and further used for adjusting the torque of the magnetic powder brake. The utility model has the advantages of convenient installation, convenient maintenance and wide universality.

A torque control system and method for a vehicle include a control system configured to calculate a driver demand torque based on a speed of the vehicle and a driver torque request, predict a net driver demand torque based on the calculated driver demand torque and an opposing net torque for a road that the vehicle is traversing, estimate a turbine speed based on measured turbine and wheel speeds and a lumped vehicle inertia state space model with an observer correction algorithm, calculate a target actuator torque based on the calculated driver demand torque and the estimated turbine speed, and control at least one of an engine and an electric motor of the propulsion system based on the calculated target actuator torque.

The invention relates to the field of vehicle control, in particular to a torque distribution method, device and equipment of a vehicle actuator and a medium. According to the method, the additional yawing moment and the available actuator required by vehicle driving are accurately obtained, the torque range of the actuator is accurately determined in combination with the dynamic parameters of the vehicle, the torque is reasonably analyzed and distributed based on the performance parameters, and then the actuator is controlled accordingly. In the precise calculation link, the calculation precision of the additional yawing moment is improved by means of vehicle dynamic parameters; in the aspect of the adaptability of the actuator, the adaptation condition of performance parameters and a torque range is comprehensively considered; the distribution strategy is based on performance and adaptation, distribution is flexible and reasonable, the defects of calculation precision, adaptation judgment, strategy flexibility and reasonability in the prior art are effectively overcome, and it is guaranteed that vehicle steering control is more accurate and stable under power chassis domain control.

The present invention relates to a method for controlling the position of a moving element in a vehicle transmission device (1). The method comprises the following steps: (i) angularly moving a control plate (10), (ii) measuring the angular position of a torque output element of an actuator and comparing the measured value with a limiting threshold value (m), (iii) reducing the rotational speed of the actuator's electric motor, (iv) applying a limited current (Ilim) to the actuator's electric motor, (v) stopping the control of the electric motor when, cumulatively, the limited current value (Ilim) is substantially reached, the measured value of the angular position of the actuator's torque output element corresponds substantially to the desired position, and the angular speed of the torque output element is substantially zero. Figure for the abstract: Figure 8

The invention discloses a collimation direct-drive actuator high-fidelity torque estimation method based on increment width learning, and belongs to the technical field of robot actuator torque estimation, and the method comprises the following steps: S1, collecting multi-dimensional state parameters, and constructing a data set; s2, obtaining weights of a feature layer and a top layer according to the data set in the S1, and constructing a basic width learning model; s3, based on the basic width learning model in the S2, when a new data set is obtained, using an incremental learning algorithm to update weights of a feature layer and a top layer, and obtaining an updated model; and S4, deploying the model to a torque control system, and constructing closed-loop control. By adopting the high-fidelity torque estimation method for the collimated direct-drive actuator based on increment width learning, the representation capability can be improved, the estimation precision can be ensured, the training overhead can be reduced, the model can be updated in real time to adapt to dynamic working conditions, high-precision estimation can be realized without an additional torque sensor, and actuator control can be effectively supported.

A pressure independent control valve (PICV) for hydronic and HVAC systems includes two opposing control valves mounted on a common spindle, a differential pressure regulating assembly comprising either dual opposing valves or a cylindrical valve, a diaphragm biased by a return spring, and a hydraulic damper utilizing system fluid through a clearance gap. The valve features a co- axial inline configuration of inlet, outlet, and internal regulating elements, enabling frictionless, balanced operation. Sealing components are disengaged during flow regulation and only activated at shutoff, allowing high-precision modulation without hysteresis or oscillations. A manual adjustment mechanism enables simultaneous fine and coarse flow setting via both control valves. The architecture supports high differential pressures, reduced actuator torque, and improved longevity. The valve design is suitable for stainless steel production using investment casting methods, supporting compact, energy-efficient operation across a wide flow range with stable performance.

The utility model relates to the technical field of accessory devices of torque measuring equipment, in particular to a torque measuring machine for a pneumatic actuator, which can clamp the equipment by matching a clamping mechanism with a clamping mechanism, and in the process, a sliding adjusting component drives a buckling device to be buckled and clamped with the output end of the pneumatic actuator, so that the torque measuring machine can be used for measuring the torque of the pneumatic actuator. According to the device, the supporting device is matched to support the equipment, so that the adjustability of equipment detection is improved, the working efficiency of the equipment is improved, the practicability is improved, the device comprises a mounting plate and measuring devices, and the measuring devices are uniformly mounted on the mounting plate; the measuring device is characterized in that the measuring device further comprises clamping mechanisms, clamping mechanisms, an adjusting device, a buckling device and a supporting device, multiple sets of sliding grooves are formed in the mounting plate, the clamping mechanisms penetrate through the corresponding sliding grooves to be in sliding connection with the mounting plate, multiple sets of long grooves are formed in the mounting plate, and the multiple sets of clamping mechanisms penetrate through the corresponding long grooves to be in sliding connection with the mounting plate.

A folding apparatus for folding ends of a wrapping material around a pulp bale, said folding apparatus including: at least two folding arms, each including a contact element at an end thereof; at least two electric actuators, each configured to co-act with a folding arm such as to displace its contact element for making contact with the wrapping material to fold said wrapping material around an edge of the pulp bale; and a control unit configured to: determine, for each electric actuator, at least one operating parameter including a position parameter correlated to a position of one or more contact element and / or a force parameter indicative of actuator torque or force and / or a speed parameter indicative of a speed of rotation or displacement of the electric actuator, and control said at least two electric actuators using said at least one operating parameter.

The utility model discloses a pneumatic actuator torque testing device which comprises a rack, a worm gear and worm gear box and a reversing valve, a torque sensor is arranged between the worm gear and worm gear box and the pneumatic actuator, one end of the torque sensor is assembled with a worm gear of the worm gear and worm gear box, and the other end of the torque sensor is assembled with a worm gear of the worm gear and worm gear box. The other end of the torque sensor is assembled with an output shaft of the pneumatic actuator, and a torque display screen communicated with the torque sensor is further arranged on the machine frame. A hand wheel for driving a worm to rotate is arranged on the worm of the worm and gear gearbox; a connector in the pneumatic actuator is connected with a connector of the reversing valve through a pipeline, the worm gear and worm gear box has a self-locking function, torque output by the pneumatic actuator is transmitted to the torque sensor, and reading is displayed through the torque display screen. The torque testing device has the advantages that the torque testing device is more compact in structure, economic benefits are saved, maintenance is reduced, and the application range of the pneumatic actuator is widened.

An aircraft control stick trim control system, comprising a trim controller, a manual trim switch, an autopilot controller, a flap control computer, a trim actuator, a control stick, the trim controller comprising a manual trim control module, an autopilot trim module, a flap trim module, a trim priority level judging module, the manual trim control module generating a manual trim signal according to the state of the manual trim switch and sending the signal to the trim priority level judging module, the autopilot trim module generating an autopilot trim signal according to the autopilot actuator torque sent by the autopilot controller and sending the signal to the trim priority level judging module, the flap trim module generating a flap trim signal according to the change rate of the flap angle sent by the flap control computer and sending the signal to the trim priority level judging module, the trim priority level judging module having a trim priority level judging logic built-in, and outputting a trim rate corresponding to a priority trim signal to the trim actuator according to the trim priority level judging logic.

The invention provides a static instability aircraft actuator moment saturation protection control method and device, and belongs to the technical field of aircraft flight control, and the method comprises the steps: recognizing the moment saturation of an actuator, and judging whether the moment saturation of the actuator occurs or not; when the torque of the actuator is saturated, the torque saturation protection operation of the actuator is executed, and the torque saturation protection operation of the actuator comprises the steps of attenuating a pilot control instruction and disconnecting an integrator control channel, so that the protection setting of the control law is realized. According to the static instability aircraft actuator torque saturation protection control method and device provided by the invention, aircraft divergence caused by static instability aircraft actuator torque saturation can be avoided, any hardware part of a flight control system does not need to be transformed, and an actuator torque saturation protection control law can be designed according to the method; the method is added to a flight control law of a flight control system, so that the transformation cost is saved, and the torque saturation protection of the statically unstable aircraft actuator is realized.

The utility model discloses a torque testing device for an automobile actuator. The torque testing device comprises a tested piece fixing device, a loading motor, a tension and pressure sensor, a sensor connecting bracket and a carrying table, the tested piece fixing device is located on the carrying table, a tested piece is fixedly installed on the tested piece fixing device, and an output shaft of the tested piece is connected with the loading motor; sensor connecting supports are fixedly installed on the two sides of the tested piece fixing device respectively, the sensor connecting supports are installed on the corresponding tension and pressure sensors respectively, and the at least two tension and pressure sensors are arranged in the circumferential direction of the axis of the output shaft of the tested piece in a 180-degree rotating mode. The testing device is rapid and automatic, can rapidly and accurately measure torque characteristic data, rotating speed-efficiency data and the like of the automobile actuator, and is high in testing precision and small in noise and vibration error.

The utility model provides an actuator torque testing device, which comprises a machine body, the machine body comprises an upper layer, a middle layer and a lower layer, the upper layer, the middle layer and the lower layer are respectively a tested equipment layer, a detection layer and a brake layer, the tested equipment layer is used for fixing an actuator mounting plate, and the actuator mounting plate is used for placing a tested actuator; the detection layer is used for placing an actuator connecting shaft, a brake connecting shaft and a torque sensor, two ends of the actuator connecting shaft and the brake connecting shaft are respectively connected with a detected actuator and a brake, and the torque sensor is arranged between the actuator connecting shaft and the brake connecting shaft; the brake layer is provided with a brake oil cylinder capable of adjusting pressure, and the two ends of the brake oil cylinder are controlled by two back pressure valves to adjust torque needed by braking. The braking device achieves the braking purpose through a hydraulic loop, and is large in braking torque range, convenient to adjust, simple in structure and easy to operate.

A method of operating a motor vehicle, the motor vehicle comprising a plurality of road wheels, a friction braking system, a powertrain system, and an input device operable to receive control inputs from an operator of the motor vehicle, the method comprising: Receiving, via a vehicle controller by the operator via the input device, a vehicle control command with an associated torque request for the motor vehicle; Determining, via the vehicle controller, a drive actuator limitation that limits a braking torque available from a driveline actuator of the driveline system; Determining, via the vehicle controller, a drive braking torque distribution for the road wheels of the motor vehicle and a maximum braking torque capacity for the driveline actuator using the drive actuator limitation and the operator-inputted torque request; Determining a first friction brake torque request using the drive brake torque distribution, the torque request, and a vehicle control mode of the powertrain system; Determining a second friction braking torque request using the maximum braking torque capacity, the torque request, and the vehicle control mode; Determining a final friction braking torque command by arbitrating between the first and second friction braking torque requirements based on a braking torque optimization decision; and Transmitting, via the vehicle controller, the final friction braking torque command to the friction braking system and a final powertrain braking command to the powertrain actuator; further comprising: Determining a road load correction based on a speed profile of the motor vehicle; and Calculating, via the vehicle control, a compensated torque request as the sum of the torque request and the road load correction when the vehicle control mode of the powertrain system is a cruise control mode. wherein determining the first and second friction braking torque includes the requirement: Using the compensated torque request as the torque request in response to the vehicle control mode being in the speed control mode; and Using the torque request uncompensated by the road load correction in response to the vehicle control mode not being in cruise control mode, wherein determining the first friction braking torque request comprises calculating a mathematical difference between: (1) the compensated torque request or the uncompensated torque request and (2) a sum of individual actuator torque requests included in the drive braking torque distribution for the road wheels of the motor vehicle, wherein determining the second friction braking torque request comprises calculating a mathematical difference between: (1) the compensated torque request or the uncompensated torque request and (2) the maximum braking torque capacity of the powertrain actuator determined from the drive actuator constraint.

The application discloses a kind of redundant EPS off-hand detection m-HIL test methods for car, comprising: one, redundant EPS off-hand detection function detection: input end torsional actuator and output end linear actuator selection;Output end linear actuator displacement keeps, adjusts input end actuator input torque, detects off-hand detection signal, records "off-hand" state and changes "non-off-hand" state corresponding output end linear actuator load value and input end torsional actuator torque value;Set output end linear actuator load value, adjust input end torsional actuator torque value, make steering gear from middle position start to rotate to both ends limit position and return, detect whether off-hand detection signal output is correct;Set input end torsional actuator initial torque, adjust output end linear actuator load, and rotate steering gear, detect whether off-hand detection signal output is correct;Two. Redundant EPS off-hand detection function fault detection.

The invention relates to a device (28) for determining a torque for at least one force feedback actuator (7, 8) in a steer-by-wire steering system (1), wherein the device (28) has at least one evaluation and control unit (26) configured to calculate the torque as a function of a determined rack force (Fz), wherein the evaluation and control unit (26) is configured to determine a total rack force (Fz) as the sum of a left-side rack force Fzl and a right-side rack force Fzr, wherein the left-side rack force is determined by means of a lateral acceleration (ay) and a left-side build-up acceleration (azl) according to Fzl = (rt + azl / an · rp) · ml · ay / rs and the right-side rack force Fzr is determined by means of the lateral acceleration (ay) and a right-side build-up acceleration (azr) according to Fzr = (rt + azr / an · rp) · mr · ay / rs can be determined, where rt is the caster angle of a steered axle,rp is a tire trail, rs is a steering lever length, and ml and mr are a left-side and a right-side mass acting on the tires, as well as an associated method.

The present invention relates to a method for controlling the position of a moving element in a vehicle transmission device (1). The method comprises the following steps: (i) angularly moving a control plate (10), (ii) measuring the angular position of a torque output element of an actuator and comparing the measured value with a limiting threshold value (m), (iii) reducing the rotational speed of the actuator's electric motor, (iv) applying a limited current (Ilim) to the actuator's electric motor, (v) stopping the control of the electric motor when, cumulatively, the limited current value (Ilim) is substantially reached, the measured value of the angular position of the actuator's torque output element corresponds substantially to the desired position, and the angular speed of the torque output element is substantially zero. Figure for the abstract: Figure 8