200 results about "Turning action" patented technology

The invention discloses a cooperative steering control method considering man-machine mutual reliability, and aims to solve the problem of man-machine conflict in an existing man-machine co-driving system. The invention relates to the field of intelligent driving. The system specifically comprises an expected path module, a man-machine steering conflict evaluation module, a driver experience evaluation module, a weight distribution module, a non-cooperative game module and a man-machine co-driving vehicle. The expected path module generates an expected path between the driver and the controller; the man-machine steering conflict evaluation module outputs the trust degree of the driver to the controller based on the steering action of the driver, the vehicle state and the expected path of the driver and the controller; the driver experience evaluation module outputs the driver trust degree of the controller based on the vehicle state; the weight distribution module is used for outputting a driver control weight; and the non-cooperative game module outputs an optimal turning angle in combination with the expected path of the driver and the controller and the control weight of the driver, and controls the man-machine co-driving vehicle to complete the cooperative steering action.

The invention provides a combined fleet steering cooperation method and system based on intelligent control, and relates to the technical field of data processing, and the method comprises the steps: calculating a cooperative steering deviation value of an actual track and a preset reference path; if the collaborative steering deviation value exceeds a preset collaborative deviation threshold value, a real-time safe navigation boundary is generated through a universal dynamic point set convex hull updating algorithm; calculating a hydraulic pressure correction parameter and a rudder angle compensation amount according to the spatial position relationship between the cooperative steering deviation amount and the real-time safe navigation boundary; and converting the hydraulic pressure correction parameter into a pressure regulation instruction, and driving a pressure self-adaptive regulation mechanism of the hydraulic system to execute a compensation steering action. According to the invention, the steering deviation is reduced, and the navigation safety in a complex environment is improved.

The application discloses a cooperative steering control method considering human-machine trust degree, and aims at solving the human-machine conflict problem in the existing human-machine co-driving system. The application relates to the field of intelligent driving. Specifically, the application comprises an expected path module, a human-machine steering conflict evaluation module, a driver experience evaluation module, a weight distribution module, a non-cooperative game module and a human-machine co-driving vehicle. The expected path module generates the expected paths of the driver and the controller; the human-machine steering conflict evaluation module outputs the trust degree of the driver to the controller based on the steering action of the driver, the vehicle state and the expected paths of the driver and the controller; the driver experience evaluation module outputs the trust degree of the controller to the driver based on the vehicle state; the weight distribution module is used for outputting the driver control weight; and the non-cooperative game module combines the expected paths of the driver and the controller and the driver control weight to output the optimal steering angle, so as to control the human-machine co-driving vehicle to complete the cooperative steering action.

The invention discloses a self-balancing control method applied to a heteroaxial two-wheeled vehicle, the vehicle carries a scissor-type double CMG module, the module comprises two CMG units, and the method comprises hardware decoupling: using the scissor-type double CMG to counteract course disturbance torque generated when the CMG works on a physical level; role separation: redefining a CMG system and a steering system; feedforward coordination: during turning, not depending on the CMG always generating a restoring moment to maintain a 0-degree inclination angle, calculating a steady-state inclination angle (phi lean) required at the speed and the steering angle through a dynamic model feedforward; and track planning: by coordinating track planning, it is ensured that the inclination action of the CMG and the steering action of the steering are perfectly synchronized in time, and balance is dynamically maintained. The problem of CMG saturation is solved, high-precision decoupling control is achieved, turning is smooth and safe, full-speed-domain coverage is achieved, and efficiency and energy saving are achieved.

The invention relates to a rice transplanter steering automatic lifting control system based on a geomagnetic principle, and the system comprises a geomagnetic sensor which is disposed on a frame of a rice transplanter, is used for detecting the steering angle of a vehicle body, and is connected with a transplanting part lifting controller through a CAN bus; the sensitivity adjusting knob is electrically connected with the transplanting part lifting controller and is used for setting a steering action triggering angle; the lifting motor is connected with the transplanting part lifting controller through a full-bridge circuit; the planting part lifting controller is used for receiving a steering angle signal of the geomagnetic sensor and controlling the positive and negative rotation of the lifting motor according to a trigger angle set by the sensitivity adjusting knob; and the intelligent instrument is communicated with the transplanting part lifting controller through a CAN (Controller Area Network) bus and displays the working state of the system in real time. The system is simple, easy to install, low in cost, wide in application scene and good in compatibility, is not only suitable for rice transplanters, but also can be popularized to other agricultural machines, realizes related automatic actions during steering, and has a good application effect and a good market prospect.

The invention discloses an electric drive automatic control method and system for front and rear tires of a tractor, and the method comprises the following steps: S1, obtaining the real-time rotating speed v (t), angular acceleration a (t) and grounding pressure p (t) of each driving wheel of the tractor, and determining the real-time slip rate s (t) of each driving wheel based on Kalman filtering and deep neural network fusion processing; s2, the speed vv (t) of the tractor and the load x (t) of each driving wheel are obtained; matching a preset target slip rate st (t) according to a target steering angle theta d (t) input by a driver, and calculating a slip rate deviation e (t) between the real-time slip rate s (t) and the preset target slip rate st (t); through a multi-sensor data fusion technology, a self-adaptive control algorithm and electric drive steering and traction force cooperative control, the rotating speed of a tire motor is intelligently adjusted to optimize traction force output, and the steering action of the tractor is accurately controlled through an electric drive steering technology, so that the operation efficiency and the control performance of the tractor under complex working conditions are improved.

The invention relates to the technical field of flange machining, in particular to a flange turning clamp which comprises a machining platform, a hard clamping jaw, a soft clamping jaw and a locking unit. According to the invention, the first clamping action of the hard clamping jaw is used as a reference when the outer circumferential surface is turned, and is also used as a reference when the soft clamping jaw clamps the outer circumferential surface, that is, a flange does not need to be moved, and the reference is provided for a subsequent secondary clamping state by using a first clamping state; the problem that errors are increased due to the fact that the flange needs to be moved in the secondary clamping action is avoided, the overall operation steps are convenient and fast, meanwhile, the precision in the turning operation process is improved, in the clamping process, the hard clamping jaw and the soft clamping jaw are thoroughly locked through the locking process of the locking frame, the stability of the clamped flange is improved, and the machining efficiency is improved. And the influence of turning action and rotating action on the clamping state is reduced, and the machining precision is improved.

The application relates to a vehicle axle steering mechanism test device, which comprises a vertical loading module of a to-be-tested vehicle axle, a steering driving module, and a torque loading module. The vertical loading module is arranged on the to-be-tested vehicle axle and is used for applying a vertical load to the to-be-tested vehicle axle. The output end of the steering driving module is connected with a steering knuckle arm of the to-be-tested vehicle axle and is used for driving the to-be-tested vehicle axle to perform a steering action. The torque loading module is respectively connected with two wheel edge output ends of the to-be-tested vehicle axle and comprises a universal connecting unit and a torque loading unit. The universal connecting unit is used for providing multi-degree-of-freedom constraint. The torque loading unit is used for loading torque. The application innovatively constructs a highly integrated, multi-axis linkage comprehensive test bench. The modules can effectively simulate the actual stress of the vehicle axle when the vehicle turns or goes uphill during testing through mutual cooperation, effectively solve the problem that the existing test bench has single function and cannot simulate a composite working condition, improve the efficiency and convenience of performance and durability testing, and fill the industry gap.

The invention relates to a paddy field light chassis space six-connecting-rod steering trapezoidal control system and method based on a kingpin inclination angle. The system comprises a paddy field light chassis, a steering trapezoidal control system and a steering trapezoidal control system, wherein the paddy field light chassis is used for mounting a paddy field agricultural implement; the space six-connecting-rod steering trapezoid is arranged below the front end of the paddy field light chassis and used for steering the paddy field light chassis; the electronic gyroscope is arranged in front of the space six-connecting-rod steering trapezoid and used for measuring main pin inclination angle data and inner and outer steering wheel rotation angle data; the vehicle-mounted embedded microcontroller is arranged on the light chassis of the paddy field, is respectively connected with a steering wheel and an electronic gyroscope which are arranged on the light chassis of the paddy field, and is used for turning the electronic gyroscope after receiving a steering command of the steering wheel; according to the main pin inclination angle data and the steering wheel steering input data collected in real time, the steering angle is calculated according to the steering trapezoid two-dimensional kinematics control model, and then the steering angle is sent to the space six-connecting-rod steering trapezoid to conduct steering action, the sideslip phenomenon in paddy field operation is effectively restrained, and the operation precision of agricultural implements is guaranteed.

This utility model discloses a mechanical steering gear for preventing abnormal noise. This utility model relates to the field of automotive parts technology. The mechanical steering gear for preventing abnormal noise includes a housing mechanism. The main body of the housing mechanism is a box structure with a one-way opening at the top. A positioning rod is fixedly connected inside the housing mechanism. The positioning rod is arranged longitudinally. This utility model effectively prevents dust from entering the interior through multiple sealing protections of components such as the housing mechanism, cover mechanism, insert plate assembly, plunger, and its sealing ring. This reduces wear caused by dust friction between the rack assembly and gear assembly, thereby reducing the possibility of abnormal noise. The reasonable design of components such as the positioning rod, connecting plate, and positioning pin ensures stable power transmission from the input shaft to the output rod, making tire steering reliable. On the other hand, the good sealing structure reduces component wear and extends the service life of the steering gear.

The invention relates to the technical field of lost foam casting, and particularly discloses a pouring device for gear box shell machining, which comprises a main body structure, a reversing structure and a mold fixing structure, the reversing structure is fixedly arranged on the main body structure, and the reversing structure is lifted and overturned through the main body structure; according to the full-automatic dip-coating machine, manual operation is replaced by mechanical linkage, reversing, overturning and downward pressing dip-coating of the lost foam are automatically completed, the manual overturning action is thoroughly replaced, the dip-coating efficiency of multiple die bodies in a single batch is improved, manpower and time are saved, the production efficiency is improved, the production cost is reduced, and the production efficiency is improved. Dip-coating surface omission or uneven coating thickness caused by different shapes of mold bodies and uneven manual force application damage caused by buoyancy influence are prevented, the device is adaptive to mold bodies and processes of multiple specifications, and the device can be compatible with evanescent molds of different sizes.

This invention provides a vehicle and its steering control method and apparatus, relating to the field of vehicle steering system technology. When detecting the steering intention represented by the steering control signal, this invention simultaneously collects real-time vehicle operating data and the operating status data of each steering system. It comprehensively calculates the total steering demand parameters of the vehicle in the corresponding driving scenario and the steering allocation parameters of each steering system based on its actual working capacity, enabling multiple steering systems to collaboratively execute steering actions according to their own true capabilities. When any steering system malfunctions, the system capable of performing steering can be quickly determined based on the real-time operating status, ensuring that there is always a steering system to perform the steering action, making steering continuous and uninterrupted, and maintaining stable and uninterrupted function. While ensuring vehicle steering smoothness and control precision, this invention also possesses reliable steering fault redundancy capabilities, effectively improving the reliability of vehicle steering control and driving safety.

The invention relates to a driving control device, a driving control method, and a program product including a driving control program. A driving control device for controlling the driving of a vehicle (100) is provided with a driving control unit (334) that, when a specific object is located within a steering operation region (Rs) set in front of the vehicle, executes a separate steering control for steering so as to maintain a distance from the object. And a driving control unit that executes deceleration control for decelerating the vehicle when the specific object is located within a deceleration operation region (Rd) set in front of the vehicle. When an object enters or is about to enter the road on which the vehicle travels during execution of the split steering control, the driving control unit changes the execution mode of the split steering control or the deceleration control so that the risk of collision with the object is reduced compared to other cases. Thus, the possibility that an object in front of the vehicle collides with the vehicle can be reduced.

The invention discloses a book reading assistor, which relates to the technical field of book reading assistors, and comprises a placing seat, a working assembly is arranged at the upper part of the placing seat, an auxiliary assembly is arranged at the lower part of the working assembly, the working assembly is connected with the placing seat through a connecting assembly, an adjusting assembly is arranged at the edge of the placing seat, and a pressing plate is arranged on the placing seat. Through integration of the working support plate, the working telescopic rod, the working motor and other components, automation of book page turning is achieved. The page turning action of the user is reduced, the reading efficiency is improved, and the method is particularly suitable for users who read for a long time or have poor eyesight. The hand fatigue of the user is relieved through automatic page turning, meanwhile, the reading continuity and smoothness are kept, and the reading experience can be improved. The main blowing pipe, the auxiliary blowing pipe, the auxiliary blowing pipe and other parts assist in page turning in a blowing mode, and non-contact page turning operation is achieved. Non-contact page turning avoids potential damage to the books caused by physical contact, and meanwhile, the books are kept clean, tidy and intact.

1. The name of the design product: millimeter wave radar. 2. The use of the design product: for automatic driving vehicles to detect obstacles in front to make corresponding braking, deceleration or turning actions. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The present invention belongs to the technical field of hydraulic control systems, and in particular relates to a hydraulic system in a hydrogen-electric "hybrid" container empty container stacker. In this hydraulic system, the lifting pump of the lifting system is in hydraulic pump mode, and the lifting cylinder performs a lifting action; when the lifting pump stops working, the lifting cylinder does not move; when the lifting pump is in hydraulic motor mode, the lifting valve group opens, and the lifting cylinder performs a descending action; when performing a steering action, the auxiliary hydraulic pump supplies oil to the hydraulic steering gear through the steering priority valve; when no steering action is performed and a lifting action is performed, the auxiliary hydraulic pump and the lifting pump jointly supply oil to the lifting cylinder. Therefore, since this hydraulic system cooperates with the lifting system and the auxiliary system, when the lifting cylinder descends, the potential energy drives the lifting pump to reverse, thereby realizing potential energy recovery. The lifting valve group is a switch valve. The auxiliary system realizes the normal operation of the entire machine, and has a small displacement, which reduces energy consumption and improves the working efficiency of the entire machine.

The invention relates to the technical field of vehicle steering control, in particular to a steering control method and device for a drive-by-wire chassis, a vehicle and a storage medium. The method comprises the steps that vehicle information, road condition information and user information of a driver and passengers are collected, and then a corresponding driving scene is matched; and judging whether the current steering of the vehicle meets the safety condition corresponding to the driving scene or not, so that when the safety condition is not met, safety warning is performed, and the safe steering angle of the vehicle is generated, and when the current steering is larger than the safe steering angle, the vehicle is limited to execute the current steering action while pacifying reminding is generated, so that the current steering is adjusted. Therefore, the problems that in the prior art, due to the fact that a related technology depends on direct control over a vehicle driving component, forcibly switches a driving mode or intervenes manual steering operation and only focuses on vehicle and road condition information, manual driving dominance and continuity are damaged, non-technical over-steering cannot be pre-judged, human risks are difficult to avoid, and personnel safety is difficult to guarantee are solved.

The application provides a stacking machine anti-rollover control method, an electronic device, a storage medium and a program product. The method comprises the following steps: acquiring an operating state parameter of a vehicle, and calculating a center of mass position of the vehicle based on the operating state parameter; wherein the state parameter comprises a load weight and a load height; based on the center of mass position, a driving speed and a tire angle, calculating a rollover torque generated when the vehicle turns and a stable torque resisting rollover; when a steering action is detected, comparing the rollover torque with the stable torque; if the rollover torque is greater than or equal to the stable torque, dynamically limiting the hydraulic flow of a steering oil cylinder according to the current driving speed; based on the current tire angle, the center of mass height and the wheelbase of the vehicle, calculating a maximum allowable driving speed, and when the current driving speed is greater than the maximum allowable driving speed, controlling the driving motor to brake so that the vehicle is slowed down to not exceed the maximum allowable driving speed.

This invention discloses a fully automatic drive device and its usage method for heat treatment forging equipment, relating to the field of forging conveying technology. The key technical point is a steering assembly for turning heat treatment forgings from a first conveyor table to a second conveyor table. This assembly includes a steering push plate for moving the heat treatment forgings. The steering push plate is rotatably mounted on the first conveyor table, which is equipped with a pushing cylinder. The power output end of the pushing cylinder is rotatably connected to one end of the steering push plate. The extension and retraction thrust of the pushing cylinder drives the steering push plate to rotate, causing the heat treatment forgings to complete the turning action. The effect is that when turning is required, the heat treatment forgings can automatically undergo the turning and conveying process without the need for manual hoisting, saving significant production time and improving the efficiency and safety of the turning process.

AI-supported all-round camera system for real-time display of the vehicle's surroundings on a screen, where the vehicle contours, axles, wheels and steering movements are visually represented 1:1.

The present invention discloses a floating control system for a metering pump system, relating to the technical field of floating mechanisms. The system comprises: a metering pump, a floating control valve, a floating mechanism, a boom functional valve, an actuator, and a control device. The metering pump, floating control valve, and floating mechanism are sequentially connected, and the metering pump, boom functional valve, and actuator are sequentially connected. The floating control valve includes a pressure reducing valve and a floating switching valve, and the boom functional valve includes a fixed differential relief valve and a proportional reversing valve. The fixed differential relief valve and the proportional reversing valve are arranged in parallel between the metering pump and the oil return tank. The floating switching valve and the fixed differential relief valve are connected via a feedback oil circuit, and a check valve is provided between the floating switching valve and the fixed differential relief valve. The actuator is connected to the feedback oil circuit via the proportional reversing valve. This system can provide constant pressure for the floating mechanism without affecting the steering output of the actuator.

The invention relates to the field of belt conveyors, in particular to a shunting conveying belt with steering sorting wheels, which comprises a frame, a conveying belt body and a sorting module, the sorting module comprises a friction rotating shaft, a row of steering sorting wheels and a steering mechanism, the friction rotating shaft is rotatably and transversely mounted on the frame, and the steering mechanism is mounted on the frame. The peripheral surface is driven by the upper surface of the conveying belt body to rotate; the row of steering sorting wheels comprises a plurality of steering sorting wheels which are distributed at intervals in the axis direction of the friction rotating shaft, and the peripheral surface of each steering sorting wheel is in transmission contact with the peripheral surface of the friction rotating shaft; the steering mechanism is used for synchronously driving all the steering sorting wheels in the row to execute the steering action, and the steering action is executed around a virtual axis formed by transmission contact points of the steering sorting wheels and the friction rotating shaft. According to the embodiment of the invention, the conveying belt is used as a power source, and a whole row of sorting wheels are synchronously controlled by using a set of steering mechanism, so that the system structure is greatly simplified, and the manufacturing cost, the maintenance difficulty and the energy consumption are reduced.

The vehicle carrier comprises a carrier body, a longitudinal driving assembly, a transverse driving assembly, a driving switching assembly, a longitudinal guide assembly, a transverse guide assembly, a longitudinal displacement detection assembly, a transverse displacement detection assembly and a control device, the vehicle carrier does not have steering action in the back-and-forth displacement process between the longitudinally-arranged parking space and the transversely-arranged lane, the rotation step, the transverse displacement distance, the occupied lane area and the running time in the prior art are reduced, the displacement running speed can be increased through guide rail rigid guiding, and the accumulated running time is at least reduced by one third; in addition, various schemes of the safety warning unit visible on the lane are provided for selection, and the running safety is improved. Dynamically photographed pictures are compared with the display outline of the ground warning unit, so that the technical means of preventing obstacles from invading an operation area is adopted, and the operation safety is ensured; based on accurate positioning of rigid guidance, direct-current power supply can be adopted, and automatic charging is achieved; the technical scheme of the invention has the remarkable advantages of low cost, high operation efficiency, safety, reliability and wide adaptability.

The invention discloses a nose landing gear performance testing system, which relates to the field of aircraft testing and comprises an upper computer, a lower computer PLC (Programmable Logic Controller) and a hydraulic control module, the upper computer is used for sending the take-up and pay-off speed curve and the angle displacement value to the lower computer PLC; the hydraulic control module comprises an oil source module, an angular displacement sensor and a proportional reversing valve; the angular displacement sensor is used for acquiring the rotation angles of the turning actuating cylinder and the retracting and releasing actuating cylinder, determining the variable quantity of the flow of the corresponding actuating cylinder according to the rotation angles, and converting the variable quantity into an angular displacement value; the lower computer PLC is used for converting the winding and unwinding speed curve and the angle displacement value into an angle control signal and adjusting the angle control signal according to the angle displacement value of the angular displacement sensor; the proportional reversing valve is used for adjusting the proportional angle when receiving the angle control signal so as to control the flow of the retracting and releasing actuator cylinder, the left turning actuator cylinder and the right turning actuator cylinder, and the retracting and releasing action, the left turning action or the right turning action of the nose landing gear at different speeds are carried out.

The invention relates to the technical field of vehicles, and discloses a redundant backup steer-by-wire control system and method and a vehicle. The system comprises a main road communication assembly and an auxiliary road communication assembly; the main path communication assembly comprises an upper-layer main controller, a middle-layer main controller and a lower-layer main controller, the upper-layer main controller is in communication connection with the middle-layer main controller, the middle-layer main controller is in communication connection with the lower-layer main controller, and the upper-layer main controller is used for determining a target steering angle for a target vehicle; the middle-layer main controller is used for generating a control steering angle for wheels of the target vehicle according to the target steering angle, and the lower-layer main controller is used for controlling the wheels to execute a target steering action according to the control steering angle; the auxiliary road communication assembly comprises an upper-layer auxiliary controller, a middle-layer auxiliary controller and a lower-layer auxiliary controller, the upper-layer auxiliary controller is in communication connection with the middle-layer auxiliary controller, and the middle-layer auxiliary controller is in communication connection with the lower-layer auxiliary controller.

This invention provides a steering system, a vehicle, and a control method for the steering system in a steer-by-wire passenger vehicle. The steering system includes: a steering wheel system comprising a steering wheel, a first angle sensor, and a controller ECU1, the first angle sensor detecting steering wheel angle signals; a backup control mechanism comprising a steering ball, a second angle sensor, and a controller ECU2, the second angle sensor detecting steering ball angle signals; and a main controller ECU connected to a steering actuator, which can be selectively connected to at least one of controller ECU1 and controller ECU2. When the main controller ECU is connected to controller ECU1, the steering wheel system controls the steering actuator to perform steering actions; when the main controller ECU is connected to controller ECU2, the backup control mechanism controls the steering actuator to perform steering actions. This solution solves the problem in the prior art where the steering system cannot guarantee occupant safety in the event of a steering wheel system failure.

The utility model relates to the technical field of steering control, in particular to an electromechanical steering control system which comprises a steering handle, a controller and an electromechanical control unit. The steering handle is provided with a micro-motion device used for controlling fine-tuning steering and an angle sensor used for detecting the swing angle of the steering handle. The output end of the micro-motion device and the output end of the angle sensor are connected to the input end of the controller, and the signal line end of the controller and the signal line end of the electromechanical control unit are connected through a CAN bus. And the controller controls the electromechanical control unit to drive the steering oil cylinder based on an output signal of the micro-motion device and / or an output signal of the angle sensor so as to execute the steering action of the target harvesting machine. According to the utility model, the softness and sensitivity of the steering operation are ensured, and the individual requirements of operators on the steering control experience are met.

A steering assist device that controls steering to keep a vehicle in a lane includes one or more processors, and one or more storage media storing a program executed by the one or more processors. The program includes one or more instructions that cause the one or more processors to execute a control torque calculating process that calculates a steering control torque corresponding to a steering wheel angle determined in accordance with a traveling condition; a determining process that determines whether an override, which is a driver's steering action during steering assist, has occurred; a torque limit calculating process that calculates a limit value for the steering control torque based on the traveling condition; and a torque instruction process that limits, upon the override, the calculated steering control torque with the calculated limit value and gives the limited steering control torque as an instruction to a vehicle's steering mechanism.