325 results about "Power steering" patented technology

The invention belongs to the technical field of new energy automobile steering systems, and discloses a new energy automobile electric hydraulic power-assisted steering system and a control method thereof.The system integrates a double-source redundant hydraulic power unit, a hydraulic adjusting unit, a multi-dimensional working condition sensing unit and an intelligent main controller; the multi-dimensional working condition sensing unit is integrated with a road adhesion coefficient detection module and a battery remaining capacity detection module. The control method is layered look-ahead matching control and is executed by an intelligent main controller in parallel: a power-assisted decision-making layer divides a three-stage power-assisted mode according to multi-dimensional perception information, and limits a steering angular velocity when power-assisted is enhanced on a low-attached road surface; the energy optimization layer predicts and implements prospective energy storage and pump rotating speed self-adaptive adjustment based on the intention of a driver; and the fault diagnosis layer realizes rapid fault identification and redundancy switching through multi-parameter collaborative diagnosis. The contradiction of high energy consumption, response delay and weak safety guarantee of a traditional system is solved, and power-assisted steering which is safe, energy-saving, fast in response and high in adaptability is achieved.

The utility model provides a steering system based on a yoke steering wheel and electronic steering gear box connecting structure, which comprises a steering unit, a steering unit and a control unit, the steering unit comprises a yoke steering wheel, an electronic steering gear box and a limiting mechanism, the steering unit and the control unit are installed in a ship cockpit, the steering unit is installed on a stern, and the electronic steering gear box is installed on the steering unit. The steering unit and the steering unit are both in electric control and communication connection with the control unit, and the control unit receives user operation information and actual steering data and outputs corresponding adjusting instructions through a PID algorithm. The connecting structure is compact in design, an electronic feedback system is strictly closed, the accuracy and reliability of the steering process are guaranteed, and the control performance of the ship is improved.

A steering control device configured to control a steering system, the steering system including a turning mechanism, the turning mechanism including a motor configured to generate a motor torque, the motor torque serving as a motive power for moving a turning shaft (14) to turn a turning wheel (16) of a vehicle. The steering control device includes a control unit configured to control a target control value, the target control value serving as a target of a control value for controlling the motor torque of the motor. The control unit is configured to perform compensation on the target control value; acquire an offset value; and change the target control value such that the acquired offset value gradually decreases.

The driving chassis structure of the intelligent driving automobile comprises a main beam of a frame-shaped structure, wheel bodies are arranged on the front portion and the rear portion of the left side and the right side of the main beam respectively, and the wheel body on the front side is controlled by a hydraulic power steering system to adjust the orientation; lateral movement mechanisms are further arranged on the left side and the right side of the main beam, located between the front wheel body and the rear wheel body and arranged to be in an adjustable state, and then the main beam is lifted by the lateral movement mechanisms to control the main beam to move transversely. The lateral moving mechanisms are arranged on the left side and the right side of the main beam, the lateral moving mechanisms are arranged in the adjusting state, and meanwhile the lateral moving mechanisms are connected with a hydraulic system and a control system of the vehicle, so that the states of the lateral moving mechanisms can be adjusted according to needs of a driver, the rollable ends of the lateral moving mechanisms make contact with the ground, and the vehicle is lifted to be separated from the ground; and convenience is provided for lateral movement of the vehicle.

1. The name of the design product: the radiator of power steering controller (high power integrated). 2. The use of the design product: for the power steering controller. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

The utility model discloses a three-axle bogie of a new energy rail traction locomotive, which relates to the technical field of three-axle bogies, and comprises a framework, a connecting mechanism, a sand mechanism, a buffer mechanism, a traction frame, a pull arm mechanism and a driving mechanism, the connecting mechanism is arranged at the top of the framework, the sand mechanism is arranged at the corner of the framework, and the buffer mechanism is arranged at the bottom of the framework. The multiple buffering mechanisms are installed on the two sides of the framework respectively, the traction frame is installed at the ends of the buffering mechanisms, the arm pulling mechanism is installed on the framework, and the multiple driving mechanisms are installed below the framework at equal intervals. Through the arrangement mode that the sand mechanism, the buffering mechanism, the traction frame, the pull arm mechanism and the driving mechanism are matched, the power bogie of the new energy rail traction locomotive is more compact in structure, smaller in power loss and higher in efficiency, large-torque operation can be provided for the locomotive, electric energy is saved, and cost is reduced; the use stability of the bogie is improved.

The invention discloses a hydraulic power steering gear structure and a mounting method thereof, the structure comprises a hydraulic power steering gear, a transmission shaft and a steering tie rod, the hydraulic power steering gear is connected with a steering wheel through the transmission shaft, the hydraulic power steering gear is connected with the steering tie rod through a steering pull arm, and the steering tie rod is connected with a tire. According to the mounting platform with the positioning rod, the technical problems that the steering performance cannot be met and the assembly efficiency is low due to the fact that the initial posture of a steering pull arm does not have standard positioning during mounting of an existing hydraulic power steering gear, the left steering limit angle and the right steering limit angle are inconsistent, the pressure relief function fails, hydraulic locking cannot be achieved, and the steering performance cannot be met can be solved. The invention discloses a method for positioning the initial position of a standardized steering pull arm, which ensures that the steering angle of the steering pull arm is symmetrical and the pressure relief function and the stop function of the hydraulic power steering gear are normal, improves the assembly efficiency and avoids later debugging.

The utility model provides a power-assisted integrated device control system, which relates to the technical field of new energy passenger cars and comprises a power steering pump, a brake power-assisted air pump, a high-low pressure double-source controller, a double-source motor, an electromagnetic clutch, a control interface module and a sensor. The power steering pump is connected with the double-source motor, and the double-source motor is connected with a crankshaft of the power brake air pump through the electromagnetic clutch. The high-low voltage double-source controller is electrically connected with the vehicle control unit through the CAN bus module, and the high-low voltage double-source controller is used for receiving an upper control signal and controlling the double-source motor to work according to the upper control signal; according to the power-assisted steering and braking device, a power-assisted steering device and a braking device are integrated, so that the whole vehicle is light in weight, meanwhile, the automatic control and adjustment functions are achieved, and the purposes of reasonably using energy, saving energy and reducing emission are achieved.

1. The name of the design product: electric hydraulic power steering system. 2. The use of the design product: electric hydraulic power steering system for automobile. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

The invention discloses a size laser detection tool for a valve plate of a powder metallurgy power-assisted steering pump, and relates to the technical field of laser detection. The size laser detection tool for the valve plate of the powder metallurgy power-assisted steering pump comprises a bottom plate, a plurality of balls are arranged at the top of the bottom plate, an L-shaped block is fixedly connected to the top of the bottom plate, an air cylinder is fixedly connected to the top of the L-shaped block, a first moving block is fixedly connected to the telescopic end of the air cylinder, and a second moving block is fixedly connected to the telescopic end of the air cylinder. And the bottom of the first moving block is connected with a second moving block through a telescopic mechanism, and the bottom of the second moving block is fixedly connected with a mounting plate. According to the size laser detection tool for the valve plate of the powder metallurgy power-assisted steering pump, during laser detection, the valve plate can be conveniently centered and limited, meanwhile, the diameter, thickness and outer diameter of an inner hole of the valve plate can be continuously subjected to laser detection, and different positions of the periphery of the valve plate can be conveniently detected, so that the detection is more comprehensive, and the detection efficiency is improved. And the detection efficiency and quality can be improved.

Aspects of the present invention relate to a control system, to a vehicle, to a method, and to a computer readable medium, for controlling a peak electric current used by an electric power assisted steering system (EPAS) of an electric vehicle. The method comprises obtaining a signal representative of a charge level of a traction battery of the vehicle, determining, based on the obtained signal, a value of a maximum electric current to be used by the EPAS, and providing, to the EPAS, an indication of the value of the maximum electric current to be used by the EPAS.

The invention provides a double-front-axle power-assisted steering system and a vehicle, and belongs to the technical field of vehicle steering systems.The double-front-axle power-assisted steering system comprises a double-loop power steering gear, an oil tank, a first power-assisted pump, a second power-assisted pump, an emergency pump, an emergency valve, a first power-assisted cylinder and a second power-assisted cylinder, and the first power-assisted cylinder and the second power-assisted cylinder assist the two front axles of the vehicle respectively; the first booster pump provides pressure oil for a first booster cylinder arranged on a first front axle through the double-loop power steering gear, and the second booster pump provides pressure oil for a second booster cylinder arranged on a second front axle through the double-loop power steering gear. The first booster pump and the second booster pump are driven by the output end of a vehicle engine, and the emergency pump is driven by a gear in the power coupling box. When the first booster pump breaks down, the second booster pump can provide assistance for steering, and when the second booster pump breaks down, the emergency pump replaces the second booster pump to work. When the vehicle loses power to slide, the first booster pump and the second booster pump stop working, and the emergency pump is driven by an internal gear of the power coupling box under the inertia effect of the vehicle to continue to provide assistance for the vehicle.

A steering angle estimation device of an electric steering system. A first operator calculates a yaw rate. a second operator calculates an average value of rear wheel speeds. A Kalman filter predicts a yaw acceleration by filtering the yaw rate. A third operator estimates a steering angle also taking into account a slip angle by using the yaw rate and the yaw acceleration. A weight adjuster adjusts weights of the wheel speeds by averaging rear right and left wheel speeds calculated by the second operator. A multiplication operator multiplies weight values output by the weight adjuster with the steering angle. A steering angle conversion switch outputs a final steering angle by selecting the estimated steering angle output from the multiplication operator or a motor steering angle measured from a motor of a motorized power steering system by the weight values.

The application provides a method, device, equipment and medium for displaying energy consumption of a driver, and the method comprises the following steps: obtaining steering signal data from a self-power steering system; obtaining throttle signal data from a throttle device; obtaining braking signal data from a braking device; calculating a driver energy consumption value according to the steering signal data, the throttle signal data and the braking signal data; and displaying the driver energy consumption value on a vehicle-mounted display. The application shows the driver relevant information about driving behavior, so that the driver can pay attention to the driving behavior during driving without increasing hardware and computing power costs.

The application relates to a force couple balance and longitudinal array push-pull vertical take-off and landing high-speed aircraft, belonging to the technical field of aircrafts, which comprises a fuselage, a rotor, a fixed wing, a steering controller and a propeller. The rotor is installed at the top of the middle part of the fuselage through a rotor shaft, and a clutch is arranged between the rotor and a power system and / or a transmission system matched with the fuselage, so as to be controlled to be disconnected or to transmit power to the rotor. The steering controller comprises a fixed base and a rotating base, and each of the nose and the tail has a set of the rotating base. The propeller is provided with two propellers which are respectively installed on the rotating bases of the nose and the tail, and are controlled to rotate with the rotating bases relative to the fixed base. The force couple formed by the front and rear thrust vectors is used to balance the reverse torque brought by the rotor. When the propeller is coaxial with the middle axis of the fuselage, the wind area of the single propeller obtains double thrust. The application can improve the energy utilization rate, improve the carrying capacity, improve the flight safety performance and obtain a longer hovering time.

The application discloses a power steering oil pump pulley assembling device, which comprises a pull rod for being connected with a pump shaft of a power steering oil pump, a positioning seat for placing a pulley, a positioning sleeve arranged on the positioning seat and used for coaxially arranging the pulley and the pump shaft of the power steering oil pump, and a driving device connected with the pull rod, wherein the positioning sleeve is sleeved on the pull rod, and the driving device is arranged to control the pull rod to move linearly along a set direction, so that the pump shaft of the power steering oil pump is inserted into a center hole of the pulley. The power steering oil pump pulley assembling device can ensure that the pulley cannot be inclined and pressed during the process of being assembled on the pump shaft, can improve the assembling effect of the power steering oil pump and the pulley of the hydraulic power steering system, and can improve the assembling efficiency.

Energy recovery system, especially for a vehicle, comprising: - at least one energy source (12) for converting kinetic energy into electrical energy, - at least one energy storage device (14), - at least one energy consumer (18), - a control unit (22) for selectively connecting the at least one energy source (12) with the at least one energy storage device (14) or the at least one energy consumer (18), wherein the at least one energy source (12) comprises at least one of the following systems: - a drive system of an electric vehicle with at least one traction electric motor, - a power steering system of a vehicle with at least one electric steering motor - a roll stabilization system of a vehicle with at least one stabilizing electric motor, wherein the control unit (22) is configured to connect the at least one energy source (12) to the at least one energy consumer (18) when the at least one energy source (12) is in a critical energy generation operating state that overloads the at least one energy storage device (14), and to connect the at least one energy source (12) to the at least one energy storage device (14) when the at least one energy source (12) is in a non-critical energy generation operating state that does not overload the at least one energy storage device (14), characterized by that at least one energy storage device (14) is a capacitor energy storage device (14), that the critical energy generation operating condition exists when at least one energy source (12) is in an intensive recovery operating condition, and that at least one energy source (12) is in the intensive recovery operating state if at least one of the following conditions is met: - the at least one energy source (12) comprises the at least one traction electric motor and a deceleration of the vehicle is above a threshold deceleration, - the at least one energy source (12) comprises the at least one steering electric motor and the extent of the steering interventions carried out to maintain a steering state is above a threshold extent and / or the frequency of the steering interventions carried out to maintain a steering state is above a threshold frequency, - the at least one energy source (12) comprises the at least one stabilizing electric motor and the extent of the roll control interventions carried out to maintain a roll state is above a threshold extent and / or the frequency of the roll control interventions carried out to maintain a roll state is above a threshold frequency.

An anti-oil-leakage power steering gear guide block comprises a guide block body, and an annular groove is formed in the outer wall of the right portion of the guide block body. An O-shaped ring matched with the annular groove is arranged in the annular groove; a pressure device is arranged on the right side of the guide block main body; an annular sealing ring is arranged between the pressure device and the guide block main body and is made of a rubber material; the pressure device can extrude the sealing ring towards the direction of the guide block main body, so that the sealing ring is pressed and expands outwards; an annular drainage groove is formed in the peripheral face of the sealing ring. According to the oil-seepage-proof power steering gear guide block, the sealing effect of the oil-seepage-proof power steering gear guide block can be effectively guaranteed, the situation of oil leakage is avoided, and the oil-seepage-proof effect is achieved.

The present application relates to the technical field of automobile power steering device, and particularly relates to a torque and angle sensor, which comprises an upper rotor assembly having an upper rotor for generating an induced magnetic field and a large gear for being fixed to the outer periphery of an input shaft; a lower rotor for being fixedly connected with an output shaft; a pinion having outer teeth for engaging with the large gear, the pinion having a magnet for generating a magnetic field; a PCB board located between the upper rotor assembly and the lower rotor for cooperating with the upper rotor and the lower rotor to generate a first angle signal, the pinion being rotatably installed on the PCB board for cooperating with the pinion to generate a second angle signal, the PCB board having an inductor coil and a chip; the present application solves the technical problems of the prior art, such as the multiple and complex structure components of the torque and angle sensor, the increased process complexity, and the large friction noise between the input shaft rotor and the upper housing during rotation.

The present invention relates to a liquid immersion cooling apparatus for a motor-driven power steering system of a vehicle, the apparatus having a circulation pump controller that drives an immersion refrigerant circulation pump so as to circulate an immersion refrigerant if it is determined that an electric steering motor driving value exceeds a motor heating threshold value, so that the immersion refrigerant comes into direct contact with a motor driving element (for example, an FET) of a motor driver mounted on a circuit board constituting a steering controller immersed in a liquid immersion tank, and thus heat from the corresponding motor driving element (for example, the FET) is dissipated. According to the present invention, the immersion refrigerant comes into direct contact with the motor driving element (for example, the FET) of the motor driver so that heat from the corresponding motor driving element (for example, the FET) is dissipated, and thus heat dissipation performance remarkably superior to that of an air-cooled heat dissipation technology using a conventional heating plate or an indirect liquid-cooled heat dissipation technology using a conventional heat pipe can be expected.

The utility model discloses an AGV motor vehicle with lifting and supporting functions, which comprises a vehicle frame and is characterized in that a plurality of lifting supporting leg devices are arranged in the middle of the vehicle frame, a front power steering device and a rear power steering device are arranged on the lower side of the vehicle frame, and each power steering device comprises a connecting plate. The connecting plate is arranged on one side of the frame in a hinged mode through a hinge assembly, universal wheels are arranged on one side of the bottom of the connecting plate, steering wheel assemblies are arranged on the other side of the bottom of the connecting plate, and the steering wheel assemblies in the two power steering devices are located at the diagonal positions of the frame. The steering wheel assembly is arranged at the diagonal position, the good supporting effect on the vehicle can be achieved, the rotating base and the hinge shaft are arranged in a hinged mode, the connecting plate can swing and turn over on the two sides so as to improve the contact degree of the universal wheel and the driving wheel and the ground, and then the stability of the vehicle is improved.

The invention provides a straddle type tourism monorail vehicle and a traction control method, and relates to the technical field of railway vehicles, the straddle type tourism monorail vehicle comprises a plurality of carriages, bogies, a power battery and a traction auxiliary inversion assembly, the bogies comprise a power hinge bogie, a non-power hinge bogie and a non-power bogie, the carriages comprise a plurality of second carriages arranged in sequence and first carriages located at at least one end of the second carriages, the power hinged bogies are used for connecting every two adjacent second carriages, and the non-power hinged bogies are used for connecting the first carriages and the second carriages or connecting the first carriages and the second carriages. For every two adjacent first carriages, the non-power bogie is arranged below a cab at the ends of the carriages, and the power battery and the traction auxiliary inverter assembly are arranged in the first carriages. The monorail traffic system is excellent in overall performance and suitable for complex terrains of scenic spots.

The application provides a driving force control method of a four-wheel drive vehicle, which comprises the following steps: obtaining a target driving force of the vehicle, a steering angle of front wheels and actual wheel speeds of each wheel; wherein the target driving force comprises a target driving force of a front axle and a target driving force of a rear axle; calculating an estimated wheel speed of each wheel based on the target driving force, the steering angle and the actual wheel speeds; calculating a difference between the estimated wheel speed and the actual wheel speed; calculating a driving force correction amount based on the difference between the estimated wheel speed and the actual wheel speed when the difference between the estimated wheel speed and the actual wheel speed meets a preset condition; wherein the driving force correction amount comprises a driving force correction amount of the front axle and a driving force correction amount of the rear axle; and correcting the target driving force based on the driving force correction amount to reduce the difference between the actual wheel speed and the estimated wheel speed until the preset condition is met. Therefore, the vehicle can quickly respond to working conditions such as sudden change of road friction coefficient, so that the straight driving performance and the steering stability of the vehicle are improved.

Method for determining the rotor angular velocity of a power steering motor in a vehicle, in which data representing information on the rotor angular velocity are used, the acquired data are filtered with a filter so that filtered data are obtained, and the filtered data are evaluated to determine the rotor angular velocity.

This invention relates to a torque load simulation device and an electromagnetic compatibility (EMC) testing system. The device includes an airflow valve assembly and a pneumatic friction structure. The airflow valve assembly regulates the compressed air pressure output by an air pump unit. The pneumatic friction structure is a grooved snap-fit ​​structure with two pneumatic friction plates respectively disposed on the inner walls of both sides of the groove. The pneumatic friction plates are driven and connected to the air pump unit via gas pipelines. The air pump unit regulates the pushing force applied to the pneumatic friction plates through the airflow valve assembly. The two pneumatic friction plates transmit the pushing force to both sides of the rotating brake disc through their friction surfaces, generating friction on the brake disc to simulate the torque load of ground friction. By designing a passive torque load simulation device, the load applied to the power steering motor can be simulated during EMC testing, which helps to accurately evaluate the electromagnetic characteristics of the power steering motor.

The invention provides an intensive steel rail grinding wagon for a plateau railway. The intensive steel rail grinding wagon for the plateau railway comprises an operation vehicle, a tractor and a dust cleaning vehicle, the tractor is connected with one side of the working vehicle, the other side of the tractor is connected with a dust cleaning vehicle, and the working vehicle comprises a vehicle body assembly; the device comprises a coupler buffer device, an air conditioner, a detection and monitoring cabinet, an oxygen production device, a radiator, a diesel generating set, a hydraulic system, a dust collection device, an electrical system, a high-voltage interconnection box, a folding shed windshield, a tight-lock coupler, a non-power bogie, a polishing device, a brake control cabinet, a fuel system and an air purification device. The intensive steel rail grinding wagon for the plateau railway is suitable for high-availability and less-maintenance key parts of core equipment under extremely complex application conditions of the Sichuan-Tibet railway, promotes key technology breakthrough, accelerates application of advanced technologies to Sichuan-Tibet railway products, and can effectively improve the steel rail grinding effect and efficiency in plateau areas.

Preventing steering wheel oscillation during vehicle shutdown is provided. An electronic power steering system is disclosed and includes: a steering wheel configured to steer a host vehicle; a steering column connected to the steering wheel; a rack; an electronic column lock configured to lock the steering column to the rack; and a control module configured to determine, during a stop event of the host vehicle, whether the electronic column lock is activated and has locked the steering column to the rack, and in response to determining that the steering column is locked to the rack, inhibit movement of the steering wheel to prevent movement of the steering wheel.

An electronic power steering apparatus, according to one embodiment of the present invention, comprises: an output shaft rotated by means of a reduction gear connected to a driving motor; a ball screw having an upper end coupled to a lower end of the output shaft, and having outer circumferential screw grooves formed on an outer circumferential surface thereof to rotate in conjunction with the output shaft; a ball nut having gear teeth formed on an outer circumferential surface thereof and inner circumferential screw grooves corresponding to the outer circumferential screw grooves formed on an inner circumferential surface thereof, the ball nut being coupled to the ball screw via a ball and sliding in an axial direction; and a sector shaft, coupled to the gear teeth of the ball nut, for operating a pitman arm while rotating during the axial sliding of the ball nut.

Some examples of the techniques described herein may include a feature where a torque of a steering wheel provides a seamless transition from automated driving to manual steering. For example, automated driving may remain active while the driver interacts with the steering wheel and may take control when the driver releases the steering wheel. The torque of the steering wheel may feel similar to the supportive torque of power steering, including an additional torque weight to indicate that automated driving is still active. Thus, a smooth transition between automated driving and manual driving may be provided. In some approaches, an automated steering controller may impart a torque on the steering wheel that is modeled as a combination of a characteristic power steering supportive torque, a second torque that may vary based on vehicle speed, or a third torque that may vary based on a degree of steering.