126results about How to "Accurate braking" patented technology

The invention concerns a device for transporting a child in a child seat comprising a main frame for supporting the child seat, a swivable push bar for pushing the main frame from different sides, pivotable wheels or wheel sets for supporting the main frame whereby the wheels or wheel sets are provided with pivot locks and brakes. In accordance with the invention the push bar comprises a brake handle for activating the brakes and that the device comprises a mechanism for activating the pivot locks of the wheels or wheel sets under the push bar and for simultaneously coupling only the brakes on these wheels or wheel sets with the brake handle.

The invention discloses a genetic algorithm optimization-based vehicle rear-end collision fuzzy control method. The genetic algorithm optimization-based vehicle rear-end collision fuzzy control method is performed by a dual-input and single-output fuzzy controller. Relative distance error ds and relative speed error dv are selected to serve as input variables of the fuzzy controller, and accelerated speed Fad control amount which is actually output serves as an output variable. A genetic algorithm optimization fuzzy control rule is used, so that the performance of a vehicle control system is improved, the response speed is high, the avoidance of occurrence of a rear-end collision accident is facilitated, the energy consumption of a vehicle is reduced, and the control effect on collision avoidance is achieved.

The invention relates to a brake control method of an automobile brake-by-wire system and an electric brake. The brake mode comprises a travelling braking mode and a parking braking mode; in the travelling braking mode, an electronic brake pedal sends a travelling braking signal to a control unit, and the control unit drives the electric brake to realize travelling brake through a driving unit according to the travelling braking signal; and in the parking braking mode, a parking button sends a parking braking signal to the control unit, and the control unit drives the electric brake to realize parking brake through the driving unit according to the parking braking signal.

The invention discloses an automotive braking automatic auxiliary system and a control method thereof. The automotive braking automatic auxiliary system comprises a power supply module and an electronic controller; the electronic controller is connected with a road surface selecting unit, a speed monitoring device, a road surface humidity sensor, a distance measuring sensor, an alarm module and a brake parachute system; the power supply module provides power for the electronic controller and the brake parachute system. The control method includes that the safe driving distance is calculated out through the electronic controller according to the current speed and the road surface driving environment; the relation between the current actual distance and the safe distance is measured out through the distance measuring sensor; an appropriate control instruction is given out through the electronic controller according to the relation between the current actual distance and the safe distance. According to the automotive braking automatic auxiliary system and the control method thereof, real-time all-around monitoring can be performed on the driving environment, the driving pressure of drivers can be reduced, and the safe driving under different environmental road surfaces can be ensured.

The invention discloses a tramcar hydraulic braking electronic control device, a braking anti-skid control module and a braking anti-skid control method. The braking anti-skid control method comprisesthe following steps: a train load M is obtained; a deceleration target value atarget- is obtained according to a train braking level; a braking force target value Ftarget is calculated, a pressure target value Ptarget of a brake cylinder is calculated, a pressure feedback value Pfeedback of the brake cylinder is obtained, and a pressure target error value delta P is calculated; a valve PWM targetcontrol signal for controlling a hydraulic valve is obtained according to the pressure target error value delta P; a shaft speed signal Vaxis is obtained, and an anti-skid coefficient Q is calculated; and a valve PWM final control signal is obtained according to the anti-skid coefficient Q and the valve PWM target control signal to drive the hydraulic valve to adjust the pressure of the brake cylinder for braking and anti-skid control. The tramcar hydraulic braking electronic control device, the braking anti-skid control module and the braking anti-skid control method have the advantages thatbraking control and anti-skid control are integrated on one module, and accurate braking and anti-skid adjustment can be achieved by setting the anti-skid coefficient Q.

The invention discloses a gyroscope remote controller of an electric scooter, which belongs to electronic remote control and in particular relates to a handheld gyroscope remote controller. A gyroscope is arranged in the handheld gyroscope remote controller to control the advancing, the retreating, the braking, the steering and the speed of the scooter. The gyroscope remote controller comprises a scooter-battery scooter body plate and the handheld gyroscope remote controller and is characterized in that the handheld remote controller is used for controlling the advancing, the retreating, the braking, the left-right steering and the speed of the scooter in an incline angle. According to the invention, movement safety coefficients are increased, and meanwhile, interest is enhanced.

To provide an electrically powered brake system capable of performing a control of the braking force appropriate to a particular wheel rotational speed with high response and capable of being simplified in structure with no need to employ any hydraulic equipment and the related pipe lines, the electrically powered brake system includes an actuating unit 18 including a brake wheel 16 mounted on a vehicle wheel 1 and brake pieces 17 frictionally engageable with the brake wheel 16. A drive unit 19 is operable to translate a rotary output of an electric drive motor 20 into a rectilinear reciprocating motion by means of a ball screw mechanism 23, which rectilinear reciprocating motion is transmitted to the brake pieces 17 as a braking force. An operating unit 32 is operable to control the electric drive motor 20 according to manipulation of an operating member 31 such as, for example, a brake pedal. An anti-skid control device 35 is provided for regulating the braking force, exerted by the electric drive motor 20, in dependence on the number of revolutions of the vehicle wheel 1 during a braking effected by manipulation of the operating member 31. For a rotation detector 1 for detecting the number of revolutions of the vehicle wheel 1, the rotation detector 1 including a magnetic encoder 37 is employed.

A method for increasing the maneuverability and driving stability of an automotive vehicle during cornering, the rotational behavior or the wheel slip of the individual vehicle wheels is monitored, and the distribution of the brake force to the curve-outward wheels compared to the brake force conducted to the curve-inward wheels is varied in dependence on the wheel rotational behavior and on the slip of the wheels. When cornering is detected, a total deceleration of the vehicle that corresponds to the driver's request is determined, and a vehicle deceleration that corresponds to the driver's request is achieved by increasing the brake force at the curve-outward wheels and decreasing or maintaining the brake force at the curve-inward wheels.

A robot includes an arm, a driving source including a turning output shaft and configured to generate a driving force for turning the arm, an output member configured to turn together with the output shaft, and a braking mechanism including a friction plate configured to turn together with the output shaft and moving in an axial direction of the output shaft, the braking mechanism braking the turning of the output shaft.

The invention discloses an automobile automatic braking system applicable to four types of pavement and a control method thereof; the system comprises an electronic controller, a detection device, an actuation device and a power module. The control method comprises the following steps that the electronic controller calculates a real-time automobile braking distance through a real-time automobile driving speed and a pavement driving environment, measures the real-time distances between two vehicles on the same lane, a vehicle and an object, a vehicle and a person through a ranging sensor, sends out a control instruction according to a control program, brakes a vehicle and gives out a voice alarm. The automobile automatic braking system has the characteristic of high intelligentization degree, and can ensure safe driving on the pavement in different environments.

The invention relates to a rotary table applied to three-dimensional human body scanning equipment and solves the problems that the rotary table of existing three-dimensional human body scanning equipment is single in function, complex in structure and the like. The rotary table comprises a base, a rotary disk, an armrest component, a weighing system, a body fat measuring system and a rotating system and is characterized in that a horizontal regulating part is arranged on the base; the armrest component comprises a handle and an armrest rod, the handle is arranged at the top end of the armrestrod, and the lower end of the armrest rod is fixedly arranged on the rotary disk; the weighing system comprises a weighing control panel and a gravity sensor, the weighing control panel and the gravity sensor are located below the rotary disk and fixedly arranged on the base, and the gravity sensor outputs a signal and transmits the signal to the weighing control panel; the body fat measuring system comprises a body fat control panel and a body fat testing piece; the rotating system comprises a motor, a transmission mechanism and a rotating gear. The rotary table has the advantages that the weighing system and the body fat measuring system are added to the rotary table, and the rotary table is capable of measuring the weight and body fat content of a human body.

The invention relates to a mouse-cage type tapered rotor electromotor, and the main design of the electromotor comprises that: an inner cavity of a stator and the surface of a rotor of the electromotor are tapered; the tapered rotor is simultaneously used as a brake. After a triphase winding of the stator is connected with a power supply, an axial magnetic pull force is generated to allow the rotor to generate axial movement; an axial braking spring is drawn; and the tapered rotor is pushed to enable the normal operation of the electromotor; when the electromotor is needed to be stopped, the power supply of the electromotor is powered off; and then the axial magnetic pull force disappears; under the action of resilience of the spring, the tapered rotor rapidly brakes to allow the rotor to stop rotating immediately, thereby realizing the function of rapid braking.

The invention provides an electrical system controlling dynamic compactor full-release winding braking and a working method of the electrical system controlling dynamic compactor full-release winding braking. The electrical system controlling dynamic compactor full-release winding braking comprises a height collecting mechanism, a tension collecting mechanism, a hand-operated control switch, a programmable logic controller, an order output device, a display device, an actuator and a power supply unit. The electrical system controlling dynamic compactor full-release winding braking and the working method of the electrical system controlling dynamic compactor full-release winding braking have the advantages that the programmable logic controller is selected to serve as the core of a control system, existing devices on a dynamic compactor are used for effectively controlling braking opportunities of winding of the dynamic compactor under the condition that the cost of hardware of the electrical system is not increased, thus the purposes that the efficiency of a single time of ramming is improved, ropes are prevented from disorder during winding, and the working life of winding is prolonged are achieved, by means of cooperation between the programmable logic controller and a moment limiter when the programmable logic controller and the moment limiter are in use, timely and accurate braking of full-release winding can be ensured, cost can be reduced, and time needed by debugging is shortened.

The invention provides a power bogie for a meter gauge. The power bogie comprises two support beams, a single arbor wheel set, a gearbox, two sets of barometric disc brakes, four air springs, two height control valves, two traction rods and two locating rods, wherein two wheels and a brake disk are directly pressed on an axle, and the wheels and the brake disk are fixedly connected; the support beams are supported on the axle by bearings, and the bearings and the brake disk are horizontally located by shaft sleeves; the gearbox is arranged on the axle; the barometric disc brakes are connected on the support beams via installation seats; the four air springs are arranged at the four corners of the support beams; the heights of every two air springs are controlled by the same height control valve; each support beam is provided with one traction rod and one locating rod; and the middle of the support beam is provided with a transverse backstop. The power bogie provided by the invention has compact and reasonable overall structure layout and good curve passage capacity and is more suitable for urban light rail traffic meter gauge lines and narrow car bodies.

A well repairing truck is composed of truck frame, driver cab, engine system, front, middle and back bridges, hydraulic oil tank, speed varying gear, winder, operating cab, the drive system consisting of power output unit, speed variator, primary and secondary hydraulic motors, commutation valve, hydraulic pump, power unit, winder, etc, the hydraulic system consisting of winder, primary and secondary hydraulic motors, energy accumulating pump, master control valve set, energy accumulator, hydraulic pump and power unit, and the electronic control system.

The invention provides a heavy-duty truck pneumatic brake device based on wireless remote control, which comprises a brake air path, a brake mechanical device and a wireless remote control device based on radio frequency. The brake air path is connected with the brake mechanical device. The wireless remote control device based on radio frequency drives the brake mechanical device through the brake air path to realize the wireless remote control braking of a heavy-duty truck. A special pneumatic line is arranged, a pneumatic valve is controlled through an electromagnetic valve, a manual braking mechanism is simulated and the instant accurate braking of the heavy-duty truck is realized. The heavy-duty truck pneumatic brake device based on wireless remote control has the characteristics of simple structure, high stability and reliability, low cost and the like; since the wireless remote control device based on radio frequency adopts a high-reliability radio-frequency chip, the long-distance remote control braking is realized; and since an electrically-controlled air brake system and the original foot brake system are mutually independent and do not interfere with each other, a manual brake and an electric brake form an 'OR' relationship and the reliability of emergency braking is greatly improved.

The invention discloses a pneumatic brake. The pneumatic brake comprises an air cylinder base and an air cylinder cover, wherein the air cylinder base is provided with an air source interface; a pressing plate and a compression spring are installed in the air cylinder base; the compression spring is connected with a spring ejector plate; a sealing sheet is arranged between the pressing plate and the spring ejector plate; the lower end of the air cylinder base is connected with a sleeve; an ejector rod is arranged inside the sleeve; the sleeve is fixed to the air cylinder base; the other end of the sleeve is fixed to a brake frame; the brake frame comprises an upper brake block and a lower brake block; two brake screws are fixed to the upper brake block and the lower brake block respectively; a brake spring is arranged between the upper brake screw and the lower brake screw. An air source is utilized for accurately controlling the upper brake block and the lower brake block to be folded and unfolded, so that a high-speed tubular strander brakes, and the effect of shutting down the tubular strander immediately is achieved.

The invention discloses a packing film and a rewinding device. The packing film is provided with viscous areas and non-viscous areas alternately arranged; the adjacent viscous areas and non-viscous areas are connected through double-sided adhesive tape joints; and the viscous areas are provided with induction labels for braking packing equipment. The rewinding device comprises a base; the base isprovided with a left support column and a right support column; a left platform is arranged on the left support column; a right platform is arranged on the right support column; a slide base is arranged on the left platform; a left shaft sleeve capable of rotating around the center axis is mounted on the slide base; the base is provided with a first driving device for driving the slide base to move in the axial direction of the left shaft sleeve; the right platform is provided with a right shaft sleeve capable of rotating around the center axis and a second driving device for driving the rightshaft sleeve to rotate; and a rewinding roller is connected between the left shaft sleeve and the right shaft sleeve through a spline. The packing film can accurately brake the packing equipment, andcan quickly taken down the rewinding roller during producing of the packing film to greatly improve the production efficiency.