30results about How to "Driving at a constant speed" patented technology

The invention relates to an exoskeleton type moving and walking rehabilitation training device and method which can be used for walking rehabilitation training of the lower limbs of the human body. The device comprises an embedded upper computer, a moving motion control unit, a walking motion control unit, a gait measuring unit and a man-machine interaction unit. Under coordination control of all the units, the lower limbs of the human body can be driven by exoskeleton mechanical legs to conduct walking rehabilitation training in a movable platform. According to the main power of the lower limbs of the human body, the walking training modes can be divided into an active training mode and a passive training mode. The device can provide lower limb standing walking training in different lower limb rehabilitation stages for people with lower limb disabilities.

The invention provides a cruise control system and a cruise control method which are developed on the basis of an indirect mode. The cruise control system comprises a cruise switch and a conversion module. The cruise switch is connected to the conversion module, and the conversion module is connected to an engine management system by a vehicular CAN (control area network) bus, is communicated with the engine management system on the basis of a CAN bus protocol, is connected to an instrument management system by a data transmission hard wire and is communicated with the instrument management system via PWM (pulse width modulation) signals. The cruise control system and the cruise control method have the advantages that the DP (data processing) 0 conversion module, the engine management system and the instrument control system are integrated and matched with one another, cruise control manipulation signals are converted into Can signals by the conversion module, then the Can signals are transmitted to the engine management system, current cruise state signals fed by the engine management system are analyzed by the conversion module to generate the PWM signals, and then the PWM signals are transmitted to the vehicular instrument control system via the hard wire, so that instrument indicator lamps can work and use the PWM signals, and the application range of the cruise control system to various types of vehicles can be greatly expanded.

The invention discloses a coarse aggregate reactive powder concrete bridge deck shot blasting and bottom coating waterproof process. The coarse aggregate reactive powder concrete bridge deck shot blasting and bottom coating waterproof process comprises the following steps: step 1, a bridge deck is preliminarily cleaned; step 2, a shot blasting machine is debugged in place; step 3, shot blasting operation is conducted; step 4, steel shot cleaning is conducted; step 5, floating ash is cleaned; and step 6, a waterproof bonding layer is constructed, wherein preliminary cleaning of the bridge deck in the first step is completed through bridge deck pavement layer shot blasting equipment, and the bridge deck pavement layer shot blasting equipment adopts equipment with the functions of synchronously removing laitance and collecting dust and shot blasting equipment which is provided with a driving walking system and achieves self-circulation recycling to conduct bridge deck concrete pavement layer treatment. According to the coarse aggregate reactive powder concrete bridge deck shot blasting and bottom coating waterproof process, the construction quality is good, hot asphalt is sprayed evenly enough, and the integrity of main bridge deck construction can be guaranteed.

The invention discloses a control system and method for constant-speed movement of a manipulator working high above the ground. The control system comprises a retractable arm, wherein the retractable arm is provided with an angle adjusting mechanism; and the manipulator is arranged on a retractable end of the retractable arm. The control system further comprises a controller, a laser distance measuring instrument and a laser speed measuring instrument. The control method comprises the following steps: (1) inputting a speed value and a distance value which are preset in the controller at first, and then enabling the manipulator to move at constant speed according to the preset speed; (2) when the manipulator moves, acquiring a distance value of the manipulator by using the laser distance measuring instrument, and transmitting the distance value into a distance value collecting module; (3) meanwhile, acquiring a manipulator movement speed value by using the laser speed measuring instrument, and transmitting the speed value into a speed parameter collecting module; and (4) comparing by using a comparing module. The control system is simple in structure, the manipulator can run at constant speed in a running process, working efficiency and working quality are greatly improved, and labor is further saved.

The invention discloses a main bridge deck shot blasting and composite modified asphalt waterproof bonding layer construction technology. The main bridge deck shot blasting and composite modified asphalt waterproof bonding layer construction technology comprises the following steps that firstly, a bridge deck is preliminarily cleaned; 2, a shot blasting machine is debugged in place; 3, shot blasting operation is conducted; step 4, cleaning steel shots; 5, floating ash cleaning; and 6, a waterproof bonding layer is constructed, preliminary cleaning of the bridge deck in the first step is completed through bridge deck pavement layer shot blasting equipment, and the bridge deck pavement layer shot blasting equipment adopts equipment with synchronous laitance removal and dust collection functions and self-circulation recovery shot blasting equipment with a driving walking system to conduct bridge deck concrete pavement layer treatment. According to the main bridge deck shot blasting and composite modified asphalt waterproof bonding layer construction technology, the construction quality is good, hot asphalt is sprayed uniformly enough, and the integrity of main bridge deck construction can be guaranteed.

The invention relates to a uniform-speed driving system, wherein a large rotary disk rotating at uniform speed is added to each platform of a bus station in the system, a railroad car rounds the outer margin of the rotary disk at uniform speed for a circle, a stair is left in the middle of the rotary disk for personnel to go up and down to enter the rotary disk and go to an outer layer from an inner layer to finish an accelerating process, and because both the rotary disk and the railroad car are at uniform speed, the frequent braking is avoided, and the effects of energy saving and time saving are achieved when in startup. An urban public transport network is reasonably established, additionally a roadway is totally closed, a vehicle also has large passenger capacity, and the time is accurately arranged, people are rapid and convenient to ride, and energy saving and environmental protection are achieved in cities. The uniform-speed driving system can be used for replacing a private car after being popularized, and the problem of urban congestion is effectively solved.

The invention discloses a rear bicycle lamp of a bicycle, which belongs to the technical field of bicycles and comprises a plurality of bicycle lamps, a storage battery, a controller, a speed measuring inductor and an alarm which are installed on the back of a bicycle body. The storage battery is respectively and electrically connected with the bicycle lamps, the controller, the speed measuring inductor and the alarm, and the controller is respectively and electrically connected with the bicycle lamps, the speed measuring inductor and the alarm. The rear bicycle lamp has the advantage that the storage battery, the controller and the alarm can be installed under a bicycle seat of the bicycle in use, and the speed measuring inductor is installed on a bicycle wheel for detecting bicycle speed. A speed value for opening a red lamp and a green lamp is preset. When a speed value detected by the speed measuring inductor is lower than a certain value, the controller controls the red lamp to light and controls the alarm to send out alarming and remind surrounding pedestrians to maintain a safe distance from the bicycle, otherwise, the controller controls the green lamp to light and remind surrounding pedestrians that the bicycle runs. The bicycle can run at a constant speed to reduce accidents and further ensure personal safety. The rear bicycle lamp is simple in structure and convenient to use.

The invention discloses a slope and curve passing method for an unmanned tramcar in a deep limited space, and the method comprises the steps: enabling the tramcar to move in an underground roadway at a constant speed, collecting the road data in a moving process in real time through a solid-state laser radar, and feeding back the road data to an industrial control computer, thereby obtaining an original three-dimensional point cloud data package and imu data; segmenting ground point cloud data and non-ground point cloud data by using an RANSAC (Random Sample Consensus) algorithm; according to the collected imu data, the current pose of the solid-state laser radar is calculated and used for feeding back whether the electric locomotive runs on a slope or not, then the uphill and downhill lengths and positions are obtained, the accelerator of the electric locomotive is increased during uphill, the accelerator of the electric locomotive is reduced during downhill, and it is guaranteed that the electric locomotive runs normally at a constant speed; and judging whether the roadway wall is a curve or not according to the shape of the roadway wall, and calculating the curvature of the curve and the position of the curve. Therefore, the unmanned rail electric locomotive can accurately identify uphill, downhill and curves, so that the unmanned rail electric locomotive can smoothly pass under a mine.

The invention discloses an accelerator prompting method based on vehicle speed and a related device. The method comprises the following steps: acquiring target speed of a vehicle and target resistancedata of the vehicle during driving; determining a target accelerator opening range according to the target speed and / or the target resistance data; and prompting the target accelerator opening range.By adopting the embodiment of the invention, the accuracy of the accelerator opening degree range can be improved, and then accurate auxiliary driving is facilitated, so that the vehicle basically keeps running at a constant speed.

The invention relates to an automatic driving control system for an agricultural tractor, which comprises a processor, a movement state judgment module, a movement state prediction module and a speed control module, wherein the movement state judgment module judges the current movement state according to movement speed and movement direction information and sends the movement state to the processor; the movement state prediction module judges the movement speed and the movement direction at the next second according to the current movement speed and movement direction information and sends the movement state to the processor; and the speed control module compares the current speed with the rated speed so as to control the current speed not to exceed the rated speed. The automatic driving control system has the advantages of manpower saving, controllable speed and high automation degree.

The invention discloses a ground one-way loop for following and transferring buses, and belongs to the technical field of urban traffic and urban planning. A bus is transferred along with a car, which is called a fast bus for short. The problem to be solved is to provide a satisfactory ground operation road for express buses. According to the technical scheme, multiple express vehicles are connected to form an express vehicle queue, the running express vehicle queue serves as a signal source, traffic lights on the two sides of a ground one-way loop are sequentially triggered through a traffic light remote control system, green light continuous running of one road of the express vehicle queue is guaranteed, and it is guaranteed that express vehicle single machines are connected from the front and join the express vehicle queue; and ensuring that the express single machines are disconnected from the tail of the queue and exit the express queue. And it can be ensured that passengers transfer between the front and rear cars of a traveling fast car queue on both straight and curved road sections. Ground social vehicle driving and pedestrian walking are both considered. The system has the advantages that the ground is in a one-way loop, the station spacing is 360 m, three express vehicles are connected to run in a queue, the average speed per hour is 36 km / h, the queue length is 15 m, the passenger carrying capacity is 60, the departure interval is 2 min, and the one-way passing capacity is 60 persons * 30 * 36 km / h.

The invention discloses a method for measuring and eliminating delay between sounding data and positioning data of an unmanned ship. The method comprises the steps: providing an anechoic pool for single-beam precision measurement, installing a transducer of the unmanned ship on a support of the anechoic pool, transversely transmitting beams, and fixing a positioning module of the unmanned ship at the top of the support. Unique corresponding water depth values are positioned for different positions in the movement process of the unmanned ship, and synchronous change of the positioning data and the water depth data under the condition that the precision and the range are known is achieved. The invention realizesthe method for measuring and eliminating delay between sounding data and positioning data of the unmanned ship; and when GNSS data acquisition is carried out, a timestamp signal is transmitted to a depth finder, and after the time of transmitting a ping signal at the moment is recorded, and after the depth finder completes the ping search and returns depth data, packaging with previous waiting positioning data is carried out, so that the propagation time of sound waves and the processing delay of the data of the depth finder are eliminated.

The invention discloses a control system and method for constant-speed movement of a manipulator working high above the ground. The control system comprises a retractable arm, wherein the retractable arm is provided with an angle adjusting mechanism; and the manipulator is arranged on a retractable end of the retractable arm. The control system further comprises a controller, a laser distance measuring instrument and a laser speed measuring instrument. The control method comprises the following steps: (1) inputting a speed value and a distance value which are preset in the controller at first, and then enabling the manipulator to move at constant speed according to the preset speed; (2) when the manipulator moves, acquiring a distance value of the manipulator by using the laser distance measuring instrument, and transmitting the distance value into a distance value collecting module; (3) meanwhile, acquiring a manipulator movement speed value by using the laser speed measuring instrument, and transmitting the speed value into a speed parameter collecting module; and (4) comparing by using a comparing module. The control system is simple in structure, the manipulator can run at constant speed in a running process, working efficiency and working quality are greatly improved, and labor is further saved.

The invention discloses an automobile transporting device and a working process thereof. A problem in an existing electric automobile application is to be solved. The automobile transporting device comprises an automobile train; the automobile train comprises a traction vehicle and electric automobiles; the electric automobiles are connected with each other through semi-connecting devices in sequence; the traction vehicle is connected with the electric automobile through a semi-connecting device; a current collection device is arranged on the traction vehicle and communicates with an overheadcontact system; and the overhead contact system is arranged on a road. According to the automobile transporting device, electric energy supply paths can be effectively reduced, the electric energy utilization rate can be increased; the automobile transporting device effectively runs within multiple running mileages at a constant speed so that energy consumption is reduced; traffic jams and trafficaccidents are effectively reduced; the traveling average speed is increased; the labor intensity of a driver of a towed vehicle is reduced; difficult charging and low charging speed are effectively avoided; the electric automobile manufacturing cost and battery scrap quantity are reduced; the automobile transporting device can run at a high speed; the safety is enhanced; and more efficient traveling is realized.

A wet type multi-disc brake for a heavy truck comprises a body, a composite air chamber, a dynamic friction disc, a static friction disc, a brake piston and a rotating disc. An outer end cover is detachably arranged on the outer side of the body. An inner end cover is detachably arranged on the inner side of the body. A composite air chamber support frame is fixedly arranged on the inner end cover. The composite air chamber is arranged on the composite air chamber support frame. A parking brake air chamber and a service brake air chamber are arranged in the composite air chamber. A force transmission gear shaft is arranged on the composite air chamber support frame. A rotating disc is arranged on the inner side of the inner end cover. A gear ring is arranged on the rotating disc. A slope transmission assembly is arranged on the inner side of the rotating disc. A brake piston is arranged on the other side of the slope transmission assembly. A dynamic friction disc and a static frictiondisc are arranged on the other side of the brake piston. The requirements of laws and regulations for the heavy truck can be met, the braking torque can be adjusted through the set speed on a long slope, the heavy truck runs at a constant speed, and vehicle accidents caused by the brake can be effectively solved.

The invention discloses a vehicle stability experimental device, comprising a road simulation system which comprises a belt, a drum, and a DC motor; the experimental device further comprises vehicle models which are scaled models similar to actual vehicle structures, and the specific types include an automobile model, a train model, a motorcycle model and an aircraft model, etc.; the experimentaldevice further comprises a data acquisition system, a tension sensor and a signal amplifier being arranged at the tail end of an experimental platform, the tension sensor being connected with the vehicle model through a thin pulling rope, an externally connected upper computer acquiring tension data of the vehicle models through a data acquisition card, and a grid laser fixed on a support measuring the real-time lateral displacement and postures of the vehicle models. The vehicle stability experimental device provided by the invention can carry out stability experiments on the various vehiclemodels, provides basic conditions for the research of a vehicle instability phenomenon and instability mechanism, has a wide application range, and has feasibility.

The invention provides a driving speed regulation device of a sightseeing electric vehicle. The driving speed regulation device of the sightseeing electric vehicle comprises a chassis and a speed regulating structure; the speed regulating structure is arranged on the chassis, and the speed regulating structure comprises a control box, a driving motor, an accelerator pedal assembly, a sliding rod and an electric telescopic rod. By arranging the electric telescopic rod, the horizontal position of a check block can be adjusted, the check block can block a sliding block at different positions, then the maximum stepping angle of the pedal is controlled, the maximum speed of the sightseeing electric vehicle is increased by adjusting the shell rightwards, and the maximum speed of the sightseeingelectric vehicle is reduced by leftwards adjusting the shell leftwards. For a beginner driver, the sightseeing electric vehicle can run at a constant speed only by adjusting the required speed in advance and then treading the accelerator pedal assembly to the maximum angle, the driver does not need to excessively adjust the state of a pedal in the running process of the vehicle, and operation is quite easy and convenient.

The invention provides an electric vehicle control method and device, a storage medium and an electric vehicle controller. The method comprises the steps: acquiring the opening degree of an accelerator pedal of an electric vehicle, and determining whether to enter a speed control mode or not according to the opening degree of the accelerator pedal; and if the method determines that the electric vehicle enters the speed control mode, performing torque control based on the current acceleration of the electric vehicle. According to the scheme, the vehicle can be kept running at a constant speed under the condition that the current opening degree of the accelerator pedal is not changed, the vehicle speed is prevented from being continuously increased, driving safety is guaranteed, and driving experience is improved.

The invention discloses a hydraulic retarder for small and medium-sized vehicles. The hydraulic retarder for the small and medium-sized vehicles comprises a stator and a rotor; a stator cavity is formed in the stator; the inner side wall of the stator cavity is provided with at least two work oil grooves; work oil cavities are defined by the outer side wall of the rotor and the work oil grooves; each work oil cavity is sequentially divided into a low pressure area and a high pressure area in the rotating direction of the rotor; oil liquid is arranged in the work oil cavities; the oil liquid isadsorbed to the outer side wall of the rotor by being close to the surface layer of the rotor; the rotor drives the oil liquid in the work oil cavities to flow in the circumferential direction of therotor so that the pressure of oil liquid in the high pressure areas can be larger than that of oil liquid in the low pressure areas; the stator is provided with oil supplying channels communicating with the low pressure areas of the work oil cavities; and the inner side wall of the stator is provided with an oil returning groove. The hydraulic retarder for the small and medium-sized vehicles is small in volume, and therefore the hydraulic retarder is applicable to the small and medium-sized vehicles; and the damping force is large, and therefore the hydraulic retarder for the small and medium-sized vehicles can be used under the steep gradient condition.

The invention relates to a traction control method for a diesel motor vehicle, in particular to an acceleration traction control method for the diesel motor vehicle, which comprises seven steps of: outputting an acceleration gear signal of a traction handle; outputting a required power gear signal of a traction inverter assembly; outputting a diesel engine rotating speed gear control signal of anon-vehicle central microcomputer; outputting generator excitation current of the on-vehicle central microcomputer; outputting a feedback power gear signal of the on-vehicle central microcomputer, outputting a power gear comparison of a traction control unit; and converting alternating-direct-alternating current, wherein each step adopts security protection control and bus technology to transmit signals. Compared with the conventional output power traction control method for the diesel motor vehicle, because a driver can directly control the speed changes of a train, the acceleration traction control method for the diesel motor vehicle greatly reduces the operation difficulties for the driver to drive at a controlled speed under a complex road condition, and achieves the functions of raiding the speed at a fixed acceleration and cruising at a fixed speed. The driver pulls the traction handle to change the gear so that the train can run at the acceleration determined by the traction handle.

The invention discloses a full-automatic welding device for welding a metal strip on the side part of a metal plate. The device comprises a rail and a submerged-arc welding vehicle arranged on the rail, and is characterized in that a control panel is arranged at one end of the roof of the welding vehicle, a longitudinal first clamp body is arranged at the other end, far away from the control panel, of the roof of the welding vehicle, the control panel and the first clamp body are fixedly connected with the roof, the side part of the first clamp body is fixedly connected with a second clamp body which is transversely arranged, and the first clamp body is fixedly connected with the second clamp body. By the adoption of the scheme, the full-automatic welding process that the metal strip is welded on the side part of the metal plate can be achieved, manual welding is not needed, the labor cost of an enterprise is saved, the welding vehicle runs at a constant speed so that uniformity of weld joints can be guaranteed, the weld joints are attractive, the structure is simple, and the configuration cost of the device is low; and a plurality of devices can work simultaneously, large-batch production of enterprise production and manufacturing is carried out, assembly line work is carried out, and huge economic benefits are brought to the enterprise.

The invention provides a cruise control system and a cruise control method which are developed on the basis of an indirect mode. The cruise control system comprises a cruise switch and a conversion module. The cruise switch is connected to the conversion module, and the conversion module is connected to an engine management system by a vehicular CAN (control area network) bus, is communicated with the engine management system on the basis of a CAN bus protocol, is connected to an instrument management system by a data transmission hard wire and is communicated with the instrument management system via PWM (pulse width modulation) signals. The cruise control system and the cruise control method have the advantages that the DP (data processing) 0 conversion module, the engine management system and the instrument control system are integrated and matched with one another, cruise control manipulation signals are converted into Can signals by the conversion module, then the Can signals are transmitted to the engine management system, current cruise state signals fed by the engine management system are analyzed by the conversion module to generate the PWM signals, and then the PWM signals are transmitted to the vehicular instrument control system via the hard wire, so that instrument indicator lamps can work and use the PWM signals, and the application range of the cruise control system to various types of vehicles can be greatly expanded.

The embodiments of this application provide a vehicle stability assisting method and an assisting device. The method comprises the following steps: detecting whether a driver needs to slow down by monitoring displacement information of a brake pedal of a vehicle; monitoring a first speed at which the brake pedal generates a first displacement and a second speed at which the brake pedal generates asecond displacement; calculating a first compensation braking force based on the first speed and the second speed; and controlling a running speed of the vehicle by using a target braking force thatis calculated from the first compensation braking force and an initial braking force, to keep the vehicle running at a constant speed without frequent active operation of the driver. The method is simple and convenient, can reduce operating burden of the driver, assist the driver to control the driving speed of the vehicle, and is conducive to improving driving safety.

The invention discloses a vehicle stability experimental device, comprising a road simulation system which comprises a belt, a drum, and a DC motor; the experimental device further comprises vehicle models which are scaled models similar to actual vehicle structures, and the specific types include an automobile model, a train model, a motorcycle model and an aircraft model, etc.; the experimentaldevice further comprises a data acquisition system, a tension sensor and a signal amplifier being arranged at the tail end of an experimental platform, the tension sensor being connected with the vehicle model through a thin pulling rope, an externally connected upper computer acquiring tension data of the vehicle models through a data acquisition card, and a grid laser fixed on a support measuring the real-time lateral displacement and postures of the vehicle models. The vehicle stability experimental device provided by the invention can carry out stability experiments on the various vehiclemodels, provides basic conditions for the research of a vehicle instability phenomenon and instability mechanism, has a wide application range, and has feasibility.

The application discloses a wet-type multi-disc traveling, parking and buffering integrated braking system and a using method thereof. The braking system comprises a service braking controller, a parking braking controller, a retarding control switch and an electronic control unit. The service braking controller is in control connection with the electronic control unit, the parking braking controller is in control connection with the electronic control unit, and the retarding control switch is in control connection with the electronic control unit. The system adopts a brake with service braking, parking braking and retarding functions; an oil pump and a radiator can guide heat generated by the brake out of the brake for cooling, braking in the driving, parking and retarding states is achieved, the temperature of the brake can be monitored, abrasion of high temperature to a braking system is reduced, the maintenance period of the braking system can be effectively prolonged, maintenancecost is reduced, and the service life of the brake is prolonged. The braking torque of slow braking is adjusted through the set speed, a vehicle can run at a constant speed, and the running safety ofthe vehicle is improved.

The present application discloses a vehicle speed-based accelerator prompting method and related devices. The method includes: obtaining the target speed of the vehicle and the target resistance data of the vehicle during driving; determining the target accelerator opening range according to the target speed and / or target resistance data; Prompt for the target throttle opening range. Adopting the embodiment of the present application helps to improve the accuracy of the accelerator opening range, and further helps to accurately assist driving so that the vehicle basically maintains a constant speed.

The invention discloses a self-powered device for detecting illegal occupation of a bus lane, which belongs to a traffic detection device and comprises a first piezoelectric axis sensor which is laid under the ground of the bus lane, is perpendicular to a lane of the bus lane and is used for detecting coaxial double-wheel passing of a vehicle, a second piezoelectric axis sensor which is parallel to the first piezoelectric axis sensor, a first signal processor and a second signal processor which are used for receiving signals transmitted by the first piezoelectric axis sensor and the second piezoelectric axis sensor when two coaxial wheels of the vehicle pass through and carrying out filtering, rectification and amplification processing on the signals, an energy storage device for providing electric energy, a controller for controlling the whole device, a camera used for shooting vehicles occupying the bus lane illegally and is hung on one side of the bus lane, and an LED display screen for warning the violation vehicle. According to the device, the labor cost is reduced, the service life is long, and compared with an existing bus lane detection device, the device is better.

A flight path repeating method and device, a server and a storage medium are disclosed, the method comprising: acquiring flight state data collected by an aircraft at a plurality of flight times, andgenerating an original flight path according to the flight state data (S301); determining a safety speed of each position in the original flight path according to the original flight path (S302); andaccording to the safety speed of each position, generating a repeating trajectory, and according to the repeating trajectory, generating a control instruction for controlling the aircraft to fly alongthe repeating trajectory (S303). Uniform-speed flight of the aircraft in the repeating process can be realized while the repeating trajectory is generated.