300results about How to "Increase mileage" patented technology

The invention relates to an electric-vehicle power battery quick replacing system, which comprises a quick dismounting mechanism and a transferring mechanism. The quick-dismounting mechanism comprises a vacuum sucker and an electromagnetic sucker, which can pull the battery case out from the electric vehicle body or push the battery case into the electric vehicle body. The transferring mechanism adopts the work module of three-coordinate translational and rotational motion, thus transferring the dismounted battery case to a charging support and/or inserting the battery case taken from the charging support in the electric vehicle, thus completing the mechanical quick loading and replacing of electric-vehicle power battery.

The invention relates to an automatic quick plug connection draw type electrical car cell box. The cell box comprises a cell unit formed by connected single cells, an internal box, an external box, a front door and a full-pull load slide, wherein the cell unit and the front door are fastened together tightly by a fastener, the cell box carried by the internal box is accommodated in the external box. With the help of the full-pull load slide arranged between the internal box and the external box, the cell unit arranged inside the internal box can be pulled out of the external box easily to supply stable electrical power through automatic quick plug joint mechanisms arranged on the back parts of the internal box and the external box, thereby realizing the quick assembly and disassembly of the whole cell unit, solving the problem of safety use of lithium batteries, facilitating the maintenance and expanding the driving range.

The disclosure relates to a unitary heat pump air conditioner (Unitary HPAC) having a plate type exchanger assembly, an electrically driven compressor, and coolant pumps. The plate heat exchanger assembly includes a plurality of plates stacked and hermetically sealed between an upstream end plate and a downstream end plate. The stacked plates define a condenser/chiller portion adjacent the upstream end plate, an accumulator portion adjacent the downstream end plate, and an evaporator/chiller portion sandwiched between the condenser/chiller portion and the accumulator portion. A refrigerant passageway extends through the plate type heat exchanger assembly, a hot coolant passageway extends through the condenser/chiller portion, and a cold coolant passageway extends through the evaporator/chiller portion. The cold coolant passageway and the hot coolant passageway are in non-contact thermal communication with the refrigerant passageway.

The disclosure relates to a unitary heat pump air conditioner (Unitary HPAC) having a plate type hot-side heat exchanger assembly, a cold-side heat exchanger assembly, and electrically driven compressors and coolant pumps. The plate type hot-side heat exchanger assembly includes a plurality of plates stacked and hermetically sealed between an upstream end plate and a downstream end plate, defining a condenser/chiller portion having a first coolant passageway, a sub-cooler portion having a second coolant passageway, and a refrigerant receiver portion sandwiched between the condenser/chiller portion and the sub-cooler portion. The first coolant passageway and the second coolant passageway are in non-contact thermal communication with the refrigerant passageway.

The invention discloses a range extending type whole electric automobile control system and method. The control system comprises a low-pressure automobile body CAN control system, a whole automobile controller, a motor controller, a generator controller, a battery management system and an insulating detecting unit. According to the control method, when the energy of an automobile power battery is stored sufficiently, a pure electric work mode can be achieved, energy is saved, and environmental friendliness is achieved; when the energy storage consumption of the power battery reaches to a certain degree, the mode of an automobile is switched into a range extending mode, a generator is driven to work to generate electricity to compensate for certain energy, and therefore the driving range of the automobile can be increased. According to the control system and method, the automobile can work in a pure electric mode so that emission can be reduced, the automobile can work in the range extending mode so that the driving range can be increased, the whole automobile control and the energy distribution management of the range extending type electric automobile are achieved, low emission can be achieved, and the driving range can be increased.

Front left and right wheel units (FL, FR) are driven by an engine (ENG) and a motor generator (MG2). Rear left and right wheel units (RL, RR) are independently driven by in-wheel motor type motor generators (MGR, MGL). The motor generator (MG2) and the motor generator (MGR, MGL) are configured to have different rated outputs, respectively, and be subjected to different speed reduction ratios, respectively, between the motor generators and their respectively associated drive wheel units, and thus have characteristics, respectively, in efficiency with respect to torque and vehicular speed, that exhibit high efficiency in mutually different output ranges, respectively. When a mileage oriented mode is selected as a traveling mode, an ECU (30) determines how a drive torque should be allocated between the motor generators (MG2, MGR, MGL), as based on the motors' required drive torque and vehicular speed and on each motor generator's characteristic in efficiency, to maximize the motor generators' total efficiency.

The invention belongs to the field of motor control, and provides an efficiency optimizing method of a master-slave type multi-motor driving system. The efficiency optimizing method comprises master motor independent driving steps, slave motor independent driving steps and dual-motor synergetic driving steps. The principle of efficiency optimizing in dual-motor synergetic driving comprises the steps of obtaining a distribution ratio corresponding to the smallest instantaneous power loss of the multi-motor driving system by changing the distribution ratio of a master motor and the distribution ratio of a slave motor, and therefore obtaining torque and the rotation speed of the master motor and the slave motor when efficiency is optimal. According to the efficiency optimizing method of the master-slave type multi-motor driving system, output power of the master motor and output power of the slave motor can be optimized and distributed in real time according to different traveling working conditions of a vehicle, comprehensive advantages of the different motors are sufficiently expressed, the efficiency of the complete vehicle is kept optimal all the time, therefore, the driving range of the electric vehicle can be effectively prolonged, and economy and dynamic performance are improved.

The invention discloses an extended range type electric vehicle power system based on a fuel battery and a control method for the extended range type electric vehicle power system. The output end of a fuel battery system with a hydrogen pot is connected with an input of a direct current/direct current (DC/DC) transformer through a controllable relay S1; an output of the DC/DC transformer is connected with a lithium iron phosphate power battery pack; the lithium iron phosphate power battery pack is connected with the high voltage input end of a motor controller; the three-phase output end of the motor controller is connected with a driving motor; a whole vehicle controller VMS directly controls an electromagnetic valve for managing hydrogen output and the relay S1 through an input/output (I/O) port, and communicates with the fuel battery system, the DC/DC transformer, a battery management system and the motor controller through controller area network (CAN) buses so as to control a motor to drive the whole vehicle to run and manage the whole power system. The fuel battery system with the hydrogen pot is used as a vehicle-mounted charger for the lithium iron phosphate power battery pack; and a scheme of a vehicle-mounted range extender of an electric vehicle can be provided. The efficiency of the fuel battery system serving as the vehicle-mounted range extender is higher than that of an internal combustion engine; furthermore, the noise is low, and zero emission and zero pollution are realized.

A hybrid electric vehicle having an array of batteries that recharge with a generator connected to a Stirling engine, steam engine and/or steam turbine powered by combusting a solid fuel product. The battery array for this vehicle, which is a series hybrid, can be recharged using residential electrical current. A preferred solid fuel product for burning in the generator-charging engine of this vehicle is selected from cellulose, lignin and combinations thereof, most preferably in the form of pellets or small logs.

An organic light emitting diode display device includes a substrate including a pixel portion and a peripheral portion, a semiconductor layer including a pixel switching semiconductor layer and a driving semiconductor layer formed on the pixel portion, and a peripheral switching semiconductor layer formed on the peripheral portion. A first gate insulating layer is formed on the semiconductor layer. A peripheral switching gate electrode is formed on the first gate insulating layer of the peripheral portion, and a pixel switching gate electrode and a driving gate electrode are formed on the first gate insulating layer of the pixel portion. A length of a peripheral switching low concentration doping region formed in the peripheral switching semiconductor layer may be larger than a length of a pixel switching low concentration doping region and a driving low concentration doping region formed in the pixel switching semiconductor layer and the driving semiconductor layer, respectively.

The invention provides a power system of a compound energy electro-vehicle, comprising a compound power supply controlling machine box, a main power supply connected with the power supply controlling machine box, a solar energy photovoltaic cell and a super capacitor module set, wherein, the output end of the compound power supply controlling machine box is connected with a motor driving controlling module and an assistant device, and the other end of the motor driving controlling module is connected with a motor; a hardware main circuit and a control circuit which are mutually connected are arranged in the compound power supply controlling machine box; the hardware main circuit is connected with the solar energy photovoltaic cell via an unidirectional DC/DC converter and is connected with the super capacitor module set via a bidirectional DC/DC converter; the input end of a microprocessor in the control circuit is connected with a temperature detecting module, a current detecting module and a pressure detecting module via a signal conditioning circuit, and the output end is connected with the motor driving circuit and an assistant device potentiometer via an optocoupler isolation circuit. The invention can better improve the acceleration performance and climbing performance of a vehicle, reduce heavy current discharging time of the main power supply and avoid the main power supply from damage and reduction of volume.

The invention discloses an extended range pure electric automobile system. A complete automobile controller, a control power supply and a DC/DC electric pressure converter are connected in turn; a brake system is connected with a driving motor; a motor controller, the driving motor and a speed change and transmission mechanism are connected in turn; the DC/DC electric pressure converter and a vehicle-mounted charger are connected with a power battery pack; an extended range power supply is connected with the vehicle-mounted charger, the power battery pack and an energy management center; the energy management center is connected with the power battery pack; and the complete automobile controller, the vehicle-mounted charger, the energy management center, an operation control mechanism, the motor controller and the speed change and transmission mechanism are connected through a communication bus. The extended range pure electric automobile system has the advantages of effectively prolonging the full charge endurance of the electric automobile, not needing a fuel generator or a fuel storage device and fulfilling the aims of purely and electrically extending the range, optimizing and prolonging the service life of the power battery pack, improving the reliability and safety performance of the complete automobile, and the like.

The invention relates to a pure electric vehicle power assembly system which solves the problems that in the prior art, one motor can not simultaneously meet the requirements on the vehicle accelerating performance and the maximum vehicle speed, and the increase of the power of the motor only depends on the increase of the volume of the motor, thereby increasing the quality and the performance parameters of the whole vehicle and increasing the manufacturing cost. The assembly system is arranged on a vehicle, is connected with a driving axle and mainly comprises two motors and power batteries, wherein the two motors comprise a high-speed motor and a low-speed motor; the high-speed motor is connected with the low-speed motor through a spline shaft; the high-speed motor and the low-speed motor are arranged coaxially; the low-speed motor is close to one end of the driving axle and is connected with the driving axle; the power output of the high-speed motor is transmitted to the driving axle through the low-speed motor; and the high-speed motor and the low-speed motor are respectively connected with motor controllers. By combining the high-speed motor and the low-speed motor, the applications in different working conditions, such as starting, low-speed operation, medium-speed operation, high-speed operation, climbing operation, braking operation and the like are realized. The combination of the two motors enables the motors to be always in the high-efficiency area, thereby improving the utilization ratio of the power energy and prolonging the continuously-driving distance.

A rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode includes a active material layer containing a positive electrode active material with the particle diameter of 5 μm or less and having the thickness at a range of 20 to 80 μm. Another rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode has two active material layers, each of which contains a positive electrode active material with a different diameter and has the thickness at a range of 20 to 30 μm.

A heat pump system for a vehicle, which makes refrigerant bypass an external heat exchanger and turns off a fan mounted on the external heat exchanger when temperature of the outdoor air is lower than setting temperature and the vehicle enters into an idle state in a heat pump mode, thereby continuously operating the heat pump mode even in the below zero temperature so as to keep heating performance, reducing consumption of electrical power without needing to operate an electric heater, and preventing excessive noise of a fan when the vehicle enters into an idle state in the below zero temperature.

A permanent magnetism synchronous hub motor for electrically driven vehicle direct drive comprises shafts, a left end cover, rotors, stators, a right end cover, a rotating transformer, bearings are arranged on the shafts, inner rings of the left end cover and the right end cover are connected with the bearings in interference fit, stators are hot sleeved on the support of the shaft, the left end cover, the right end cover and the rotors are jointed together by bolts, the rotors are composed of rare earth magnet steels at interval adhering in the inner wall of the support by the magnet steel glue. The invention can be mounted in the vehicle wheel hub for directly driving the vehicle wheel and save traditional drive devices, thereby simplifying the whole vehicle structure, improving the drive efficiency and using the space effectively; the invention is an outer rotor motor without reduction gear mechanism, has small volume, large power, large starting moment, good control performance and low energy consumption, can reduce the whole vehicle weight and the maintenance cost and improve continued mileage and battery life.

The invention discloses a braking energy recovery control method and device and an electromobile. The method includes the steps that the mode which the electromobile is in is judged; if the electromobile is in a braking state, speed of the electromobile is obtained, and the speed segment which the electromobile is in is judged according to the speed of the electromobile; if the speed of the electromobile is in a first preset speed segment, first preset torque is adopted for braking control over the electromobile; if the speed of the electromobile is in a second preset speed segment, first preset power is adopted for braking control over the electromobile. More energy can be recovered through the braking energy recovery control method in the embodiment, and stability of electromobile braking can be ensured.

The invention discloses a pure electric car air conditioning compressor control method and system based on fuzzy control. The control method comprises the following steps of obtaining a temperature in a car; calculating the measurement value of the temperature difference between the temperature in the car and a setting temperature according to the temperature in the car; when the measurement value of the temperature difference is in a first temperature difference range, calculating the measurement value of the temperature difference change rate between the temperature in the car and the setting temperature; respectively quantizing the two measurement values, obtaining conversion values of the temperature difference and the temperature difference change rate in the corresponding theory field; and then combining the preset fuzzy control rule, calculating and outputting the fuzzy control coefficient; calculating the working rotational speed of an air conditioning compressor according to the fuzzy control coefficient, and controlling the air conditioning compressor to run according to the working rotational speed. According to the method and the system provided by the invention, by adopting the compressor variable frequency control principle, the rotational speed of the compressor can be changed to a certain corresponding trend according to the change of the temperature in the car, so tat the comfort of drivers and passengers can be met to the utmost extent; and compared with the current fixed frequency control, the electricity quantity of a battery pack can be saved, and the continuous driving range of a pure electric car can be effectively prolonged.

The invention discloses an energy storage suspension device having a vibration energy recovery function, relates to a vibration energy recovery device for an energy storage suspension, and belongs to the technical field of vehicle energy saving and emission reduction. On the basis of a hydraulic energy storage suspension, an output shaft of a hydraulic motor is connected with a generator through a gear set, so that the vibration energy of the energy storage suspension is converted into electricity to be stored. While the function of the hydraulic energy storage suspension is implemented, the mechanical energy generated from vibration of a vehicle suspension is converted by a motor into electricity to be stored, a novel vibration energy recovery layout scheme is provided, so that the performance of a passive suspension system and the handling stability and the driving smoothness of the vehicle are promoted to be improved, and the effect of energy saving is also exerted.

The invention relates to a range extended electric vehicle power system adopting a planetary gear two speed transmission. The range extended electric vehicle power system adopting the planetary gear two speed transmission is characterized in that a crankshaft of an internal combustion engine is connected with a shell of a double clutch transmission device; a first clutch of the double clutch transmission device is connected with a planetary gear mechanism through a transmission shaft; a second clutch of the double clutch transmission device is connected with a rotor of a first motor; a rotor of a second motor is connected with any one component of a sun wheel, a planetary carrier and a gear ring of the planetary gear mechanism; power is output by the set second component of the sun wheel, the planetary carrier and the gear ring; and two gear shifts are realized by controlling the motion state of the set third component of the sun wheel, the planetary carrier and the gear ring. A vehicle is mainly driven by the second motor when running at low speed, so that low-speed and low-load work of an engine is avoided and the economy and the emission performance of the whole vehicle are improved. The vehicle is driven by the power system through parallel operation when running at high speed, so that the energy transfer efficiency is high and the driving range of the vehicle is further prolonged on the basis of guaranteeing the power performance of the whole vehicle.

The invention discloses a distributed asymmetrical cooling device and method for an electric automobile power battery. The distributed asymmetrical cooling device comprises a vehicle-mounted cooling device body and a cooling charging pile; the vehicle-mounted cooling device body comprises a module heat exchanger tightly making contact with a battery set, a first cooling liquid conveying pipeline connected with the module heat exchanger and enabling the module heat exchanger to form a loop, a first three-way valve, a first cooling liquid inflow and outflow connector and a first charging connector connected with the battery set, and a first water pump is arranged on the first cooling liquid conveying pipeline; and the cooling charging pile comprises a charging mechanism and a cooling mechanism, and a second charging connector and a second cooling liquid inflow and outflow connector are formed in the cooling charging pile. According to the distributed asymmetrical cooling device and method for the electric automobile power battery, a vehicle-mounted refrigerating device body is canceled, transferred to the ground and cools the battery set only in the charging process; and through the structure, the automobile occupied space and the automobile weight are reduced, vehicle-mounted electric energy cannot be additionally consumed, and thus the automobile traveling distance is increased.

The invention relates to application of hydrogen fuel and a rotary engine thereof; the hydrogen fuel can be effectively utilized and the problems of back fire, preignition and insufficient power of the hydrogen fuel engine; the technical proposal is that: the hydrogen fuel is used for the rotary engine, and the hydrogen fuel rotary engine is provided with a rotor and a shell, and an air inlet and an air outlet are arranged on the shell; the rotary engine is characterized in that: a hydrogen inlet is arranged on the shell.

The invention discloses a power system of an extended-range type electric vehicle adopting a combination of a double clutch and planetary gears. The power system comprises an internal combustion engine, a planetary gear system, a first motor, a second motor and the double clutch. The planetary gear system comprises a planetary carrier, the planetary gears, a gear ring and a sun wheel. An output shaft of the internal combustion engine is connected with the planetary carrier. A rotor of the first motor is connected with the gear ring. The sun wheel is connected with one end of a transmission shaft, and the other end of the transmission shaft is connected with an input disc of the double clutch. A rotor of the second motor is connected with the input disc of the double clutch. The output end of a first clutch part of the double clutch is provided with a first driving gear, and the output end of a second clutch part of the double clutch is provided with a second driving gear. The first driving gear is meshed with a first driven gear. The second driving gear is meshed with a second driven gear. The first driven gear and the second driven gear are arranged on a power output shaft.

The invention discloses a heating management system for a hybrid vehicle. The heating management system comprises an engine heating large cycle and an electric heating small cycle. The engine heating large cycle is used for heating a water way, and the water way forms a circulating loop sequentially through an engine circulating water pump, a thermostat, an inlet B of a three-way valve, an outlet C of the three-way valve, a passing water PTC (positive temperature coefficient) heater and a cab heating unit; the electric heating small cycle is used for heating the water way; the water way forms another circulating loop sequentially through a PTC water pump, an inlet A of the three-way valve, the outlet C of the three-way valve, the passing water PTC heater and the cab heating unit. The heating management system has the advantages that in a hybrid mode (in which an engine runs), a passenger compartment is heated by high-temperature cooling water flowing out of the engine and passing the passing water PTC heater, the demand of passengers for heating is met, a defrosting function and a defogging function are achieved, energy consumption is lowered, all-electric mode driving range is widened, the whole hybrid vehicle is more economical, and the environmental friendliness of the hybrid vehicle is better embodied.

The invention discloses a pure electric automobile as well as a control method and a control device for a cooling system thereof. The control method for a cooling system comprises the following stepsof carrying out heat production analysis on each heat source in at least one heat source in an automobile so as to obtain the temperature of each heat source at a future preset time; obtaining the current outdoor environment temperature and the current automobile speed of the automobile and obtaining a plurality of cooling capacity values of the cooling system at different states from a preset cooling capacity table according to the current outdoor environment temperature and the current automobile speed; and controlling the cooling system according to the plurality of cooling capacity valuesand the temperature of each heat source at the future preset time. And therefore, the energy efficiency ratio of the cooling system of the pure electric automobile can be optimized to achieve active energy saving so that a purpose of increasing the endurance mileage of the electric automobile is achieved.

The invention discloses an electronic control hybrid energy-storage electric automobile, which consists of a power supply detection device, a charge mode selection device, a drive controller temperature display device, a charge controller temperature display device, a motor rotating speed signal display device, a braking signal display device, an acceleration signal display device, a power generation system information feedback device, a charge system information feedback device, an environmental detection device, a steering wheel turn angle signal display device, an electronic comprehensive control system, a signal processing device, a controller, a charge control device, a drive control device, an automatic protection device, an instrument signal control device, a power generation unit, a power cell, a driving motor, an instrument display device and a fault display device, wherein the power generation unit, the power cell, the driving motor, the instrument display device and the fault display device are connected with and arranged behind the electronic comprehensive control system. The electric automobile has the advantages of simple whole structure, convenient operation and use, greatly reduced weight of the whole vehicle, energy saving technology for a circuit and well prolonged road haul.

The invention discloses a thermal management system of an electric automobile. The thermal management system comprises a power battery unit, a driving motor unit, an air conditioning unit, a warm aircore body unit, a motor Chiller heat exchanger, a battery Chiller heat exchanger, a water-cooled condenser, a four-way reversing valve and a heat exchanger, the motor Chiller heat exchanger is disposed in the drive motor unit. The battery Chiller heat exchanger is arranged in the power battery unit; the motor Chiller heat exchanger is connected with the battery Chiller heat exchanger; the drivingmotor unit is connected with the power battery unit through the four-way reversing valve; the water-cooled condenser is arranged in the warm air core body unit, the power battery unit is connected with the warm air core body unit through the heat exchanger, and the air conditioning unit is connected with the motor Chiller heat exchanger, and the battery Chiller heat exchanger and the water-cooledcondenser. According to the heat management system, effective utilization of heat in the heat management system can be achieved, electric energy can be saved, and the driving range of the electric vehicle is increased.

The invention discloses an energy-saving type electric bicycle hub motor which comprises a main shaft, a hub and an end cover. The hub sleeves the main shaft through a first bearing. The end cover sleeves the main shaft through a second bearing. The hub is connected to a sun wheel tooth ring fixed to the motor through a speed reducing mechanism. The sun wheel tooth ring is driven by the motor to rotate, and thus the hub is driven to rotate by the speed reducing mechanism. Under the premise of maintaining a through shaft structure, a two-stage speed reducing planetary gear mechanism with the engagement of a powder metallurgy gear and an engineering plastic gear is used, the reliability of the hub motor structure is ensured, the transmission noise is effectively reduced, the high speed performance of the disk type ironless DC motor can be fully played, and the continuation mileage of an electric bicycle is improved greatly according to the high efficiency characteristic of a disk type ironless motor at a low torque motor.

The invention relates to an electric car heat pump air-conditioning system with an adjustable refrigerant charging amount, and belongs to the technical field of air-conditioning and cars. According to the electric car heat pump air-conditioning system, the rotary speeds of a compressor, an external heat exchanger fan and an internal heat exchanger fan can be adjusted at any time according to temperature signals of an external temperature sensor and an internal temperature sensor, therefore the system is enabled to be in an optimal working condition; a two-position three-way solenoid valve can be switched according to a pressure signal of an exhaust pressure sensor of the compressor to achieve storage and release of a refrigerant so as to achieve matching of refrigerant charging amounts in refrigerating and heating modes; a system condensing pressure is reduced in the refrigerating mode to achieve a pressure protection effect; and the system condensing pressure is increased in the heating mode to increase the system heating capacity and improve the heating efficiency of a heat pump air conditioner. Therefore, the energy consumption is reduced, the travel distance of an electric car is prolonged, and an application of the electric car is promoted.

The invention provides a double-motor driving control method and device, a controller and an automobile, and relates to the technical field of motor driving control. The method comprises the steps that the current travelling speed and master driving torque needing to be output to an automobile body from motors are obtained; first output torque of the first motor and second output torque of the second motor are determined under the travelling conditions of the travelling speed and the master driving torque according to a torque reference table, wherein first output torque corresponding to the first motor and second output torque corresponding to the second motor under conditions of different travelling speeds and different master driving torque when thetotal electric power is the smallest are recorded in the torque reference table; and the output torque of the first motor and the output torque of the second motor are adjusted according to the first output torque and the second output torque which are determined. According to the scheme provided by the invention, the problem that the single-motor driving efficiency is low is solved, the double-motor comprehensive driving efficiency is always kept within an optimal range, and the comprehensive efficiency of a driving system is improved.