68results about How to "Guaranteed safe state" patented technology

The invention discloses a lithium-ion battery electrolyte for a ternary material battery, belonging to the technical field of lithium-ion battery electrolytes. Technical scheme of the invention includes the following key points: the lithium-ion battery electrolyte for the ternary material battery comprises an organic solvent, lithium salt, and an additive, wherein the mass ratio of the organic solvent to the lithium salt to the additives is (80-87):(10.9-14):(1.9-2.5). With cyclohexyl benzene, imidodisulfuryl fluoride lithium and lithium bis(oxalato)borate added to the lithium-ion battery electrolyte in the invention, the performances of the battery in normal temperature cycle, high temperature cycle, full charge storage and overcharge tests are significantly improved.

A liquid-cooled battery, in particular in the form of an energy store for an electrical drive in a motor vehicle is provided. The battery has a plurality of storage cells 2 and at least one volume 4 which makes thermally conductive contact with the storage cells 2 and through which a cooling medium can flow. Each of the storage cells 2 has a safety valve 12 which opens the storage cell when a predetermined media pressure in it is exceeded, and connects the volume of the storage cell to the surrounding area. The safety valve 12 is arranged in the storage cell 2 and the storage cell 2 is arranged with respect to the volume 4 through which the cooling medium can flow such that a connection is produced between the volume 4 through which the cooling medium can flow, and the interior of the storage cell 2 if the safety valve 2 is operated.

The invention relates to the technical field of pressurized water reactor nuclear power plant accident treatment, and specifically discloses a pressurized water reactor nuclear power plant circuit over-pressure protection and pressure-relief system, which comprises a pressurizer, a pressure-relief box pipeline, a pressurizer safety valve, a plurality of pneumatic separation valves and a plurality of electrical separation valves, wherein the pipeline positioned on the pressurizer and connected with the pressure-relief box pipeline is provided with the pressurizer safety valve, the pipeline for connecting the pressurizer and the pressure-relief box pipeline is further provided with three parallel connection branches, the first branch comprises the electrical separation valve A and the pneumatic separation valve A, the electrical separation valve A and the pneumatic separation valve A are connected in series, the second branch comprises the electrical separation valve B and the pneumatic separation valve B, the electrical separation valve B and the pneumatic separation valve B are connected in series, the third branch comprises the electrical separation valve C and the pneumatic separation valve C, and the electrical separation valve C and the pneumatic separation valve C are connected in series. With the pressurized water reactor nuclear power plant circuit over-pressure protection and pressure-relief system, the over-pressure protection and pressure-relief function can be performed under working conditions such as normal operation of nuclear power plants, basis accidents and severe accidents so as to maintain the safe status of the reactor.

The invention discloses a vehicle ECU upgrading control method. The method comprises the following steps: firstly, when a T-box receives a signal that an ECU needs to be updated from a cloud server, the T-box downloads the engine data to the ECU through the cloud server and sends an upgrading request to the vehicle instrument; after the vehicle instrument receives the upgrading request, whether the vehicle condition meets an upgrading condition or not is judged, when the vehicle condition meets the upgrading condition, an instrument display screen displays that an ECU can be upgraded, and finally a user completes ECU upgrading through man-machine interaction. According to the method, the time of waiting for ECU upgrading by the user is remarkably shortened, the participation degree and theperceptibility of the user are improved, and the driving safety is not influenced.

The invention discloses a method for calculating a clearance distance according to a blade moving track of a wind generating set, which comprises the following steps of: calculating a real-time three-dimensional coordinate of a current blade tip according to blade GPS (Global Positioning System) positioning information given by an existing blade track monitoring system of the wind generating set; building a tower structure model, and completing the building of a coordinate system with the bottom circle center of the tower as the origin; converting the real-time three-dimensional coordinates of the blade tip into three-dimensional coordinates in a coordinate system with the circle center of the bottom of the tower as the origin through a spherical coordinate conversion algorithm; establishing a dynamic equation of a straight line with the shortest distance from the blade tip position to the tower. and integrating the clearance distance and the unit state data to complete data modeling. The current blade clearance distance and the blade clearance distance at the next time enter a main control system of the wind generating set in real time through communication and participate in main control, and once the blade clearance distance is in an alarm mode, main control prevents the blades from sweeping the tower through related strategies such as rotating speed reduction and variable pitch. The safety of the blade tower and even the whole machine is provided.

The invention provides an electric automatic driving automobile brake energy monitoring device conforming to function safety. The device comprises a main control module and a monitoring module, and ischaracterized in that the main control module comprises a brake control module, a safety deceleration monitoring module and a battery remaining capacity SOC monitoring module; the monitoring module comprises a main monitoring module, a current overcurrent monitoring module and a watchdog module. The requirement for functional safety can be met. Reasonable distribution of mechanical braking and regenerative braking is monitored, and unexpected insufficient braking force is prevented; when the automobile generates braking energy feedback, the residual electric quantity of the power supply battery is monitored, battery overcharge and instantaneous current overlarge are avoided, so that the automobile reaches a safe state in the braking process.

The invention discloses a calibration and calibration method and system for a gas sensor. The calibration and calibration method comprises the following steps: S101, measuring corresponding output quantities of the gas sensor in more than two gas environments with known concentrations; s103, fitting the output quantities of the gas sensor obtained in the step S101 and the known concentration of the corresponding gas environments into a calibration curve to realize calibration of the gas sensor; and S105, calibrating the calibration curve obtained in the step S103 by using a set standard curve, and replacing the output quantity corresponding to the calibration curve with the output quantity corresponding to the standard curve in a gas environment with the same concentration. The gas sensor is calibrated and calibrated at the same time in the preset gas concentration environment, and the factory time of the gas sensor is shortened.

An automatic peritoneal dialysis machine comprises a dialyzate bag, a heater, a waste liquid bag, a safety detector, a first valve, a second valve and a third valve. Dialyzate in the dialyzate bag is heated to the set temperature through the heater, the first valve and the second valve are opened, the third valve is closed, the heated dialyzate flows into an abdominal cavity of a patient, when the pouring amount of the dialyzate reaches the preset value, the first valve is closed, the dialyzate stays in the abdominal cavity of the patient to conduct dialysis and diffusion, when the time that the dialyzate stays in the abdominal cavity of the patient reaches the preset time, the first valve and the third valve are opened, the dialyzate exchanged in the abdominal cavity is led out of the waste liquid bag, and after the amount of the led-out dialyzate is consistent with the amount of the poured dialyzate, the first valve and the third valve are closed. The safety detector leads out the dialyzate exchanged in the abdominal cavity and conducts blood leakage detection on the dialyzate exchanged in the abdominal cavity. The machine effectively ensures the safety state of the patient in the dialysis process, and improves the dialysis efficiency.

The invention relates to the related technical field of lifting and transporting devices, and discloses a forklift frame capable of improving loading efficiency and transporting safety and stability. The forklift frame capable of improving loading efficiency and transporting safety and stability comprises a carrying frame; a carrying mounting plate is mounted in the carrying frame in a lifting and sliding manner; a mounting frame is detachably and fixedly mounted on the carrying mounting plate; a lifting fork plate is rotatably mounted on the mounting frame; two goods bearing devices are symmetrically and fixedly mounted on the front side end face of the lifting fork plate in a front-back mode; and each goods bearing device comprises a bearing plate. According to the forklift frame capable of improving the loading efficiency and the transporting safety and stability, through the arrangement of a front guide device, in the goods loading process, an inclined guide plate is inserted into the bottom of a goods box; and in the moving process, the bottom of the goods box makes contact with a multi-wheel plate of the inclined guide plate; and therefore, the friction force is converted into a smooth rolling effect.