49results about How to "Guaranteed mileage" patented technology

The invention discloses a method for fault diagnosis on the basis of storage battery state of charge (SOC) and state of health (SOH), which comprises the steps of: sequentially calculating all the monomer SOC and SOH which form all the battery modules, the equivalent SOC and SOH of all the modules which form a battery pack, and the equivalent SOC and SOH of the whole battery pack, and judging whether a storage battery discharges or not. The method for fault diagnosis online identifies and calculates the equivalent SOC and SOH of the whole battery pack, and accordingly, the real-time fault diagnosis is realized.

The invention discloses a two-stage balance control circuit, system and policy for charge and discharge of lithium battery packs. The balance control circuit comprises a symmetrical multi-winding transformer and DC-DC converters; the system comprises the lithium battery packs and the two-stage balance control circuit for charge and discharge of the lithium battery packs, connected with the lithium battery packs; the two-stage balance control circuit comprises a data acquisition circuit, a balance circuit, a controller and a driving circuit; according to the control policy, balance control between single lithium batteries in the lithium battery packs is performed firstly; and then balance control between the lithium battery packs is carried out. According to the method, the DC-DC converters are used for performing balance between the single lithium batteries and the improved symmetrical multi-winding transformer is used for performing balance between the lithium battery packs; and therefore, by complementing advantages of the two kinds of topological structures, the problems of complex control, inaccurate balance, slow speed, low efficiency, high cost and the like existing in the lithium battery balance technology are solved.

The invention relates to a communication coordination system and method between electric vehicles. The system comprises a handheld terminal, a cloud server, a vehicle-mounted communication terminal, a battery management module and a whole vehicle controller. The cloud server receives the battery alarming state and the current position of an electric vehicle, then analyzes and obtains a nearest electric vehicle charging station, or releases the help information, and marks out the position of the electric vehicle needing to be charged on a map. According to the system and method, a new charging scheme for the electric vehicles are provided, and the situation that the electric vehicles replenish electric quantity in time can be effectively guaranteed; the different electric vehicles uniformly establish connection through the cloud server and conduct dispatching through the cloud server, so that a rescue chain is formed; and the other electric vehicles close to the electric vehicle needing to be charged can respond to the help information, actively conduct rescue, and provide the charging service for the electric vehicle needing to be charged, and thus further wide application and popularization of the electric vehicles are facilitated.

The invention provides a power system for a mechanical-electrical-liquid hybrid-driven vehicle and a control method thereof, and belongs to the technical field of the energy conservation and emission reduction of vehicles. A vehicle transmission system belongs to an internal-combustion engine, electromotor and hydraulic pump/motor hybrid drive power system, the electromotor and the hydraulic pumpmotor are connected with a main reducing gear and a differential mechanism directly by using the stepless speed regulating characteristic of the electromotor and the hydraulic pump motor, and the operating strength of drivers is reduced for the vehicle can be driven to run without a clutch and a speed changing box; the vehicle is driven to run by a storage battery-electromotor in the conventionalrunning process, and a hydraulic accumulator-variable pump/motor is only used for recovering and recycling the braking energy of the vehicle, so the charge impact of an electrical system is reduced, and the service life of a storage battery is prolonged; and the energy of the storage battery is insufficient due to the long-time running of the vehicle, a generator is driven by adopting a small-scale efficient internal-combustion engine which runs in the optimal state to charge the storage battery, so energy consumption and tail gas discharge which are caused by the internal-combustion engine can be reduced effectively, and the running distance of the vehicle can be ensured.

The invention relates to an auxiliary energy supply system of a fuel cell car. The auxiliary energy supply system comprises original components of the car, and further comprises an additionally arranged pneumatic power generator and an additionally arranged rectifier, wherein the additionally arranged pneumatic power generator and a pressure reducing valve are sequentially arranged on a gas path between a high-pressure hydrogen cylinder group and a fuel cell, the additionally arranged rectifier is arranged between the additionally arranged pneumatic power generator and a lithium battery, the additionally arranged pneumatic power generator is driven through pressure relief energy of high-pressure hydrogen in the high-pressure hydrogen cylinder group so as to generate electric energy, meanwhile, hydrogen gas passing through the additionally arranged pneumatic power generator enters the fuel cell through the pressure reducing valve, the additionally arranged rectifier receives the electric energy of the additionally arranged pneumatic power generator to carry out rectification, and then assists in lithium battery charging, and the lithium battery supplements electric energy for a vehicle-mounted auxiliary battery through a DC/DC converter. The system effectively solves the problems that in the prior art, a fuel cell car is large in energy waste, and low in energy utilization rateof the whole vehicle, the energy of a lithium battery is insufficient under the partial working conditions, and energy supplement is lacked, and the overall energy utilization rate is improved.

The invention discloses an intelligent timely driving linkage system of an electric vehicle and a control method of the intelligent timely driving linkage system. The system comprises a rear wheel drive motor, a rear wheel controller, a front wheel drive motor, a front wheel controller, a tile angle sensor and a reset switch. The intelligent timely driving linkage system has the advantages that the problems existing in torque and platform efficiency when the electric vehicle works at a large load are solved, and motor torque of front and rear dual drive is double that of common single drive; the maximum current when the electric vehicle works at the load is shared by the front wheel drive motor and the rear wheel drive motor, the two motors are both in the optimal working efficiency state, and therefore the traveling distance and endurance mileage are greatly increased; when the whole electric vehicle is in a large load state, front and rear wheels are driven at the same time, and torsion is utilized to the maximum degree; the riding state of the whole vehicle is intelligently judged, according to riding requirements, automatic switching is performed to achieve rear wheel single drive or front and rear wheel dual drive, large current of instant starting and current of small-load driving are controlled, and therefore the power bottleneck of the electric vehicle is broken, and the endurance mileage is guaranteed to the maximum degree.

An automobile air condition system adopts the following four modes: a refrigeration mode, a heating mode, a demisting mode, and a deicing mode, and comprises a heating parts temperature control circuit and a heat pump system, wherein a refrigerant circulation circuit is in heat exchange with the heating parts temperature control circuit through a double-fluid passage heat exchanger; a first fluid passage of the double-fluid passage heat exchanger is communicated with the refrigerant circulation circuit, and a second fluid passage thereof is communicated with the heating parts temperature control circuit; the heating parts temperature control circuit can be selectively conducted to cool heating parts; the refrigerant from a compressor passes towards a heater and then is split into two ways, wherein the first-way refrigerant passes through the heat exchanger outside a car and then through a first throttle valve to throttle, and the second-way refrigerant passes through a second throttle valve to throttle and then towards the double-fluid passage heat exchanger. The system can work in outdoor environment with ultra low temperature; and in the deicing mode and the heating mode, a battery and other heating parts can be cooled at the same time.

The invention discloses a fuel cell sightseeing vehicle. The sightseeing vehicle comprises a sightseeing vehicle body, a hydrogen fuel cell system and a control system, and the hydrogen fuel cell system comprises a hydrogen supply subsystem, a fuel cell engine, a radiator assembly and a lithium battery. The fuel cell engine and the control system are both and electrically connected with the lithium battery, the fuel cell engine is electrically connected with the control system, and the hydrogen supply subsystem is provided with a first safety monitoring module; the fuel cell engine is providedwith a second safety monitoring module, and the control system is provided with a fault diagnosis processing module and is used for collecting the field data of the first safety monitoring module andthe second safety monitoring module, evaluating the fault level according to the field data and a preset rating standard, and controlling the sightseeing vehicle body and the hydrogen fuel cell system to conduct corresponding processing according to the fault level. The fuel cell sightseeing vehicle can adapt to a low-temperature environment, guarantees the driving mileage and the driving safety,and is environment friendly.

The invention discloses a composite electric flywheel and fuel battery energy storage system, and belongs to the field of vehicle-mounted energy of electromobiles. The system is characterized in thatthe requirements of a vehicle for high-energy density, high-power density, high system efficiency and long service life of a vehicle-mounted energy storage device can be considered. Under the startingworking conditions of the vehicle, the high-power density advantage of a flywheel battery is utilized for compensating for the disadvantage of long starting time of a fuel battery; under the medium-high driving requirement power, the composite energy storage system works in a dual-energy supply mode, the high-power density advantage of the flywheel battery is utilized, not only can the power requirement of the whole vehicle be met, but also high current discharge of the fuel battery can be avoided, the service life of the fuel battery is prolonged, and the system work efficiency is improved;under the low driving requirement power, an electric flywheel does not participate in driving of the whole vehicle, and a whole vehicle controller moderately controls a flywheel speed adjusting motorto improve the efficiency of the composite energy system; under the braking conditions, the instantaneous high-power feedback advantage of the flywheel battery is utilized, the braking energy of the whole vehicle can be fed back, and the energy utilization efficiency of the whole vehicle is improved.

The invention provides a method and a system for identifying engine combustion and a readable storage medium. The method comprises the steps: controlling engine oil injection ignition for any drivingcycle after an engine is dragged by a motor to reach a preset rotating speed; correcting the resisting moment of the engine according to the motor torque; and according to the motor torque and the corrected resisting moment of the engine, determining whether the engine burns or not in the current driving cycle. By means of the scheme, the problem that in the prior art, due to the fact that whetheran engine burns or not cannot be accurately recognized, an EMS always executes an oil injection ignition instruction, and risks exist can be solved.

Provided is a tire engine. Ten or N metal sleeves or sleeves capable of containing pistons are casted in a rotary hub; ten or N corresponding rubber bases capable of fixing pushing rods are casted in a tire matched with the piston sleeves; a fixed hub with an independent drive oil cavity and an oil return cavity is casted; the two hubs are spaced through a rolling bearing and forms a gap; when the tire makes contact with the ground and is perpendicular to the ground, squeezing force of deformation of the tire directly pushes oil-resisting rubber tires or the pistons to move upwards, and compression oil squeezed by the rubber tires or the pistons enters the drive oil cavity through oil guide holes and steel balls with the partition function, and enters an oil turbo machine through an oil inlet pipe to enable an impeller to rotate; returned oil of the other sleeve which releases pressure just now enables high-pressure oil to enter the oil returning cavity through an oil returning pipe and push the oil or the pistons to move downwards, oil resetting helps rotation of the impeller and power is output. A transmission shaft and a hub connection disc enable a wheel to rotate continuously, and if multiple wheels are staggered by a certain angle and rotate at the same time, force transmitted to the oil turbo machine can be output continuously to be used for generating electricity or the like.

The invention discloses an odometer applied on a vehicle axle for metering vehicle-miles of travel. The odometer comprises a shell, a through hole formed in a central position of the shell, a double-screw bolt penetrated in the through hole and matched with the through hole, a self-locking nut matched and connected with the double-screw bolt in a threading manner, a turbine worm mechanism disposed in the central position of the shell and installed inside the shell, a copper sleeve sleeving a worm, a counterweight balancing mechanism connected with the turbine worm mechanism by virtue of the copper sleeve, a turbine shaft penetrating through the central position of a turbine, supporting frames respectively arranged at two ends of the turbine shaft, a ratchet mechanism disposed at one side of the turbine worm mechanism and installed on the supporting frames and a counting mechanism arranged at the bottom end of the turbine worm mechanism and driven by the ratchet mechanism. The odometer not only can provide accurate and intuitive mileage information, but also can solve the problem that the traditional odometer cannot directly meter the mileage of a trailer with no driving speed changer.

A composite energy storage system based on a stepless speed change type flywheel and a power battery is characterized in that the composite energy storage system can be controlled to operate in different working modes according to different automobile operation working conditions, and the requirements of an automobile for high power density, high energy density, high energy conversion efficiency and long service life of the energy storage system can be met at the same time. Under the starting condition of the vehicle, the discharge current of the power battery can be reduced and the service life of the power battery system can be prolonged by virtue of the high-power density advantage of the stepless speed change type flywheel; under medium-high driving demand power, the composite energy storage system works in a dual-energy supply mode, and by means of the advantage of high power density based on the stepless speed change type flywheel, the power demand of the whole vehicle can be met, large-current discharge of a power battery can be prevented, the service life of the power battery is prolonged, and the working efficiency of the system is improved; under low driving demand power,based on the fact that the stepless speed change type flywheel does not participate in whole vehicle driving, the whole vehicle controller controls the electric energy output by the power battery tobe converted into mechanical energy through the motor at the same time, and then part of the remaining mechanical energy obtained after whole vehicle driving is met is transmitted to the flywheel so as to control the stepless speed change type flywheel to operate in an efficient state; and under the emergency braking working condition, by means of the advantage of instantaneous high-power feedbackbased on the stepless speed change type flywheel, more braking energy can be fed back compared with a conventional single-power-battery energy storage system, the energy utilization efficiency of thewhole vehicle is improved, large-current charging of a power battery can be prevented, and the service life of the power battery is prolonged.

The invention discloses a two-gear speed change mechanism of an electric motorcycle and relates to the technical field of motorcycle driving mechanism structures. The two-gear speed change mechanism of the electric motorcycle comprises a driving gear, an output gear and a shifting gear which is meshed with the output gear, wherein the driving gear is meshed with the output gear, a shifting fork isarranged on the driving gear, the rotation of the shifting fork is controlled by the driving gear, and the other end of the shifting fork extends out of the driving gear and stretches into a limitinggroove; the shifting fork rotates and is limited in the limiting groove; when a motor rotates clockwise or anticlockwise, the shifting fork rotates clockwise or anticlockwise along with the shiftingfork, and the driving gear is toggled to be separately meshed with the output gear or the shifting gear. According to the scheme, the gear of the motorcycle can be adjusted, and the motorcycle can climb a slope more easily.

The invention provides a range extending type thermal management system and a range extending type vehicle, and relates to the technical field of vehicle thermal management, the range extending type thermal management system comprises an electric drive loop, a battery loop and a four-way valve, one end of electric drive equipment is connected with one end of a first electric drive pipeline, and the other end of the electric drive equipment is connected with one end of a second electric drive pipeline; the other end of the second electric drive pipeline is connected with one end of the low-temperature radiator, and the other end of the low-temperature radiator is connected with one end of the third electric drive pipeline; one end of the battery is connected with one end of the first battery pipeline, and the other end of the battery is connected with one end of the second battery pipeline; the four-way valve is communicated with the other end of the first battery pipeline and the other end of the first electric driving pipeline, and is communicated with the other end of the second battery pipeline and the other end of the third electric driving pipeline, so that the electric driving loop and the battery loop are connected in series and coupled, and the low-temperature radiator cools the battery; and the technical problem of relatively low efficiency in the battery cooling and heating process is relieved.

The invention discloses a power system of a lithium battery electric motor coach. The power system comprises a motor parameter selection system, a transmission ratio selection system of a power trainsystem, an energy and capacity selection system of a lithium battery and a whole bus power system; the motor parameter selection system comprises a system for determining continuous power of a motor and a system for determining peak power parameters of the motor; a low-speed constant-torque and high-speed constant-power working mode can be realized through the motor parameter selection system; stepless speed regulation is easy to realize; the requirements of the highest vehicle speed and the maximum climbing degree are met; the performance of the electric vehicle can be effectively exerted; the dynamic property and the driving range of the electric vehicle can be guaranteed; sufficient power can be kept in the vehicle; the nonlinearity and the coupling degree of the vehicle are reduced through hierarchical analysis; the total longitudinal force, the total lateral force and the total yawing moment required by the vehicle body are solved through inverse dynamics of the vehicle; the driving intention is achieved; and the riding comfort of passengers is better.

The invention discloses a method for controlling power-switching stable operation of an air-conditioner unit of a dual-powered trolley bus. The method comprises the steps: S1, a detection circuit real-timely monitors the voltage of a network cable power supply and the electric quantity of storage batteries and transmits detection values to a main logic control unit; the main logic control unit sends high-level/low-level signals of forced energy-saving and forced shutdown and an air-conditioner unit enters a forced energy-saving status or a forced shutdown status according to each control signal; S2, under the forced energy-saving status, the detection circuit real-timely monitors the voltage of the network cable power supply and the electric quantity of the storage batteries and transmits the detection values to the main logic control unit; the main logic control unit controls the air-conditioner unit to keep the forced energy-saving status or enter the shutdown status or recover normal operation according to the detection value. The air-conditioner unit is operated according to the control signals transmitted by the main logic control unit; when the trolley bus is running by switching the power between a high-voltage overhead line network and a wireless network zone, the stable operation of the air-conditioner unit is maintained and the driving mileage of the electric vehicle is guaranteed sufficiently.