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

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 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 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 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 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 method for measuring and eliminating the delay between unmanned ship depth data and positioning data, provides an anechoic pool for single-beam precision measurement, and installs the unmanned ship transducer on the support of the anechoic pool and horizontally Launch the beam, and at the same time fix the positioning module of the unmanned ship on the top of the bracket, and use the unmanned ship to locate the unique corresponding water depth value at different positions during the movement process, so as to realize the synchronization of positioning data and water depth data in the case of known accuracy and range Change, the present invention realizes a kind of measurement and elimination method of the delay between unmanned ship sounding data and positioning data, when carrying out GNSS data acquisition promptly sends time stamp signal to sounder, after recording the ping signal time of launching at this time , after the depth sounder completes the ping search and returns the depth data, it is packaged with the previously waiting positioning data, thereby eliminating the propagation time of the sound wave and the processing delay of the sounder data.

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 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 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 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.