32results about How to "Guaranteed safe parking" patented technology

The invention discloses a decoupling drive-by-wire brake system. The decoupling drive-by-wire brake system comprises an oil pot (01), oil pot liquid outlet check valves (02 and 03), a brake master cylinder (04), a pedal feeling simulator (PFS) (06), block valves (07 and 08), a linear normally closed valve (11), a high-pressure accumulator pressure sensor (12), a high-pressure accumulator (13), a motor-pump pressurization system (14), pipeline pressure increasing valves (15, 16, 17 and 18), pipeline pressure reducing valve (19, 20, 21 and 22), a pedal stroke sensor (23) and an ECU (31). According to the decoupling drive-by-wire brake system, compared with a configuration scheme that an auxiliary main cylinder is driven by a motor, the response requirement for the motor-pump system is reduced, the power requirement of the motor and the ECU is reduced, and the safety performance of the system is improved.

The invention provides a double-storey stereo garage provided with an automatic rotating and positioning parking mechanism. The double-storey stereo garage provided with the automatic rotating and positioning parking mechanism comprises a fixed parking rack provided with an upper-storey parking space and a lower-storey parking space, a picking-up rack used for picking a vehicle on the lower-storey parking space up to the upper-storey parking space, a stretching mechanism used for making the picking-up rack be connected with the fixed parking rack and making the picking-up rack slide on a ground sliding rail, vehicle carrying plates arranged in the upper-storey parking space and the lower-storey parking space of the fixed parking rack and used for carrying vehicles, oil cylinder lifting devices used for controlling the vehicle carrying plates to move up and down in the corresponding parking spaces, and a lifting mechanism used for controlling the upper-storey vehicle carrying plate to move vertically in the upper-storey parking space and the lower-storey parking space. According to the double-storey stereo garage provided by the invention, through the double-storey stereo design, the occupied area is small, and the number of the parking spaces is large; and a driver can leave only after parking a vehicle to the specific vehicle carrying plate, automatic rotating and positioning parking is achieved through the hydraulic lifting device, a hydraulic stretching device and a hydraulic rotating device, parking is convenient, and safe parking of the vehicle is guaranteed.

The invention discloses a composite braking system of a coke oven electric locomotive. The system comprises an electromagnetic disc type brake and a pneumatic unit brake shoe brake, wherein the electromagnetic disc type brake is arranged on a walking device, the pneumatic unit brake shoe brake is arranged on a wheel, and when an electric control system controls a driving motor to slow down to a set speed, the electromagnetic disc type brake carries out main braking, and the pneumatic unit brake shoe brake carries out auxiliary braking. The invention also discloses a composite braking method of the coke oven electric locomotive. When the technical scheme is implemented, the system and the method have the following beneficial effects that the safe parking of the electric locomotive is ensured through determining the primary and secondary relation of the two kinds of brakes of the braking system in the braking work of the electric locomotive, the driving force sources of the two brakes are relatively independent, the braking force is provided in two modes of electric control and pneumatic control, the condition that all brakes cannot be in failure after the loss of one kind of driving force is guaranteed, the structure is simple, and the stability is high.

The invention discloses a method and device for fault diagnosis of a shutdown solenoid valve and a shutdown control system. The method includes the steps that after a shutdown control signal is monitored and first time passes, whether the value of the rotating speed of an engine is larger than a preset rotating speed threshold value or not is detected, and when the value of the rotating speed is larger than the preset rotating speed threshold value, a fault of the shutdown solenoid valve is determined. The method and device can judge whether the engine stalls or not when the shutdown control signal is sent out, so that the opening and closing states of the shutdown solenoid valve are accurately judged, and then whether the shutdown solenoid valve itself breaks down or not is found. The method and device can judge the states of the shutdown solenoid valve for the control system and an aircraft pilot in time, so that the control system and the aircraft pilot timely adjust control law bases conveniently, and the safe shutdown of the engine is ensured.

The invention relates to a ship electric power propulsion supervising device and method; the ship electric power propulsion supervising device comprises a monitoring device and a control device; powersupply system and electric power propulsion system equipment states are gathered, thus controlling the operations of the electric power propulsion system equipment; the monitoring device comprises anindustrial computer and an application program compiled by a high-grade language; the control device comprises a safety control unit and a main control unit; when the system runs, the safety controlunit gathers the important protection signals of the power supply system and electric power propulsion system equipment, thus determining the protection function of the system; the main control unit gathers equipment running signals, and controls the normal operation of the system according to control logics; the monitoring device gathers signals of the control device, and uses a friendly interface to display the data, alarms, forms and trends of the system; an interface playback function can assist crews to analyze abnormities. The monitoring and control functions are integrated, thus effectively improving the automation level of the power propulsion system; the safety control unit is arranged, thus effectively improving the safety and reliability of the system.

An embodiment of the invention provides a transmission power transmission system, a transmission and a vehicle, and relates to the field of vehicle engineering. The transmission power transmission system comprises a first input shaft, an intermediate shaft, a reduction gear set and a second input shaft; the first input shaft is sequentially provided with a plurality of gear driving gears in the length direction of the first input shaft; the middle shaft is sequentially sleeved with a plurality of gear driven gears in an empty mode in the length direction of the intermediate shaft; the gear driven gears mesh with the gear driving gears in a one-to-one correspondence mode; the intermediate shaft is in transmission connection with the reduction gear set; a synchronizer is arranged on the intermediate shaft and used for selectively driving one of the multiple gear driven gears to be in transmission with the intermediate shaft; the second input shaft is in transmission connection with the reduction gear set and provided with a clutch used for being in transmission connection with power input equipment. The transmission power transmission system can shift gears according to the running state of the vehicle, so that a driving motor of the electric vehicle runs in a high-efficiency interval, and the battery life is prolonged.

The invention discloses a safety protection method and device for a maglev train, a line where a maglev train is located is a line where a power supply rail is arranged on the whole line, and the method comprises the steps that a speed-related constraint item is set; and a first target parameter and a second target parameter of the maglev train are obtained, the first target parameter is a target position parameter and a target speed parameter of the maglev train obtained through data fusion, and the second target parameter comprises maglev train information and line information. and a safety protection curve of the maglev train and a train control curve of the maglev train are calculated by utilizing the first target parameter, the second target parameter and the speed related constraint item. The safety protection curve of the maglev train, the train control curve of the maglev train and the speed-related constraint items are used for controlling the maglev train to be safely stopped on the line where the power supply rails are arranged on the whole line, and the running safety and the running efficiency of the maglev train can be improved.

The invention discloses an intelligent microgrid control system applied to a parking lot. The intelligent microgrid control system can monitor states of vehicles in the parking lot in real time and simultaneously can accurately record information of the vehicles entering the parking lot. The intelligent microgrid control system applied to the parking lot comprises a controller, a parking lot exit,a parking lot entrance and a plurality of parking spots arranged in the parking lot, wherein the parking lot exit and the parking lot entrance are provided with barrier gates. By means of the intelligent microgrid control system applied to the parking lot, safe parking of the vehicles in the parking lot is ensured, and labor input for monitoring the vehicles is reduced.

The invention relates to a railway vehicle parking braking method and a parking cylinder for implementing the method. The parking braking method comprises the specific steps that compressed air is charged into the parking cylinder, so that the parking cylinder is in an unlocking state, compressed air is charged into a brake cylinder, service braking is applied, compressed air in the brake cylinder is discharged, and service braking is relieved; the compressed air in the parking cylinder is discharged, so that the parking cylinder is in a locked state, the compressed air is filled into the brake cylinder, and parking brake is applied; and the parking cylinder is filled with compressed air, so that the parking cylinder is in an unlocking state, the compressed air in the brake cylinder is discharged, and parking brake is relieved. According to the designed parking braking method, a parking braking power source is not provided by a spring, fatigue attenuation cannot occur along with the running time of the vehicle, the braking force can be flexibly adjusted according to the load of the vehicle, and the driving safety is high.

The invention provides a method for improving the braking comfort of a vehicle. When the vehicle is about to be stopped, braking force to be applied to wheels is decided according to the slope of theroad surface, the performance of a brake, the weight of the vehicle, driving force applied to the wheels, the position of an accelerator pedal, the stroke or brake pressure of a brake pedal and the gradient of the brake pedal. The braking force is smaller than traditional braking force, so that impact on a driver and passengers is reduced or eliminated. The braking force differs under different conditions. However, the changes of the braking force neither affect the position of the brake pedal nor interfere with normal driving. When the vehicle stops, braking pressure is applied according to the slope of the road surface and the condition of the driver, so that the safe parking of the vehicle is ensured. When the method is adopted, pressure is reduced first and is then increased, so that impact can be eliminated.

The invention discloses a new energy vehicle motor drive control and vehicle speed safety protection method. The method is applied to a new energy vehicle comprising a vehicle controller, a motor controller, motor rotating speed detection equipment and an anti-lock braking system ABS, and comprises the following steps: calculating three groups of motor rotating speed values, motor rotor position values and vehicle speed values, and establishing corresponding credible factors for the three groups of motor rotor position values; adjusting the credible factor of each position value according to the state of the vehicle, and adopting the motor rotating speed value and the motor rotor position value corresponding to the maximum credible factor; and starting, by the whole vehicle controller, a corresponding whole vehicle protection strategy according to the condition of the rotating speed value credible factor. It is not required to add equipment to reconstruct the original vehicle, the costis low, response is rapid, and the reliability is high.

The invention discloses a butterfly spring hook type special bogie for a coke quenching vehicle. The butterfly spring hook type special bogie for the coke quenching vehicle comprises a transversely arranged swing bolster, wherein two ends of the swing bolster are respectively fixedly connected with the middles of longitudinally arranged side frames, the side frames are each of a box-shaped structure, transversely arranged axles are respectively arranged on the front side and the rear side of the swing bolster, two ends of each axle are respectively provided with wheels, the axles penetrate through the wheels and are rotatably connected with bearing assemblies arranged in bearing boxes, the axles are fixedly connected with the wheels, butterfly spring structures are respectively mounted ontwo sides of each bearing box in the longitudinal direction, and each bearing box is suspended between the two corresponding butterfly spring structures. The butterfly spring structures disclosed by the invention are mainly used for reducing harmful train impulse, enabling the mass and the load of the vehicle to be uniformly transmitted to each axle, and effectively attenuating the vibration and the impact of the vehicle caused by factors such as irregularity, rail gap, turnout, rail abrasion and uneven settlement on a running route and out-of-round wheels.

The invention provides a dual-mode parking electromagnetic valve of an electro-hydraulic speed regulator. The dual-mode parking electromagnetic valve mainly comprises a shell, a coil, an iron core, an iron core seat, a spring, a spring seat, a steel ball, an iron core limiting mechanism and an ejector rod assembly. When the iron core limiting mechanism and the ejector rod assembly are arranged at the initial positions, the movement range of the steel ball can be set, and the iron core base and the spring base are each provided with a sealing face matched with the steel ball. After the parking electromagnetic valve is powered on or powered off, the steel ball is separated from the sealing surface of the iron core seat or the spring seat, so that the speed regulator controls oil to release pressure, the power piston is further caused to move towards the oil reducing direction, and the diesel engine parking effect is achieved. The two modes of power-on parking and power-off parking of the electro-hydraulic speed regulator under different working conditions can be met, safe parking of a diesel engine is guaranteed, and the device has the advantages of being compact in structure and convenient to install and adjust.

The invention discloses an intelligent wireless vehicle-stopping detection device. The intelligent wireless vehicle-stopping detection device mainly comprises a wireless detection emission part, a wireless receiving processing part and a light curtain. When a perpendicular circulation three-dimensional garage is in a parking mode, whether a car wheel passes through a vehicle stopping rod or not is detected through a sensor; operation is carried out through a data processor, then the result is transferred to a data processing wireless receiver through a wireless emission device, the data processing wireless receiver controls a three-dimensional-garage electronic control system, then a power source of a three-dimensional-garage transmission part is controlled by the three-dimensional-garage electronic control system, and meanwhile it is detected that a driver leaves the three-dimensional garage through the light curtain, then a parking-state alarm device can be automatically started; when the car does not pass through the vehicle stopping rod, the parking-state alarm device reminds the driver of wrong parking, and therefore the function that whether the car wheel passes through the vehicle stopping rod or not is automatically detected is achieved; safe parking is guaranteed, time and labor are saved, automatic parking is achieved, and the vehicle storage efficiency of the perpendicular circulation three-dimensional garage is improved.