114results about "Vehicular energy storage" patented technology

The present invention relates to a method for verifying a charging state of a wireless power receiving apparatus in the wireless power transmitting apparatus, and more particularly, to an apparatus and a method for efficiently performing and controlling wireless power transmission.

To this end, the present invention provides a wireless power transmitting method, wherein a standby state of determining whether at least one wireless power receiving apparatus is positioned within a wireless charge range of the wireless power transmitting apparatus and a power transfer state of transmitting power to the corresponding wireless power receiving apparatus when at least one wireless power receiving apparatus is detected in the standby state are provided, and the standby state includes a first standby state of periodically transmitting a weak detector signal and a strong detector signal and a second standby state in which at least one of a transmission period of the weak detector signal and a transmission period of the strong detector signal is different from that of the first standby state, the method including: determining any one state of the first standby state and the second standby state of the wireless power transmitting apparatus; and transmitting the weak detector signal and the strong detector signal based on the determined standby state, wherein the transmission period of the weak detector signal in the second standby state is longer than the transmission period of the weak detector signal in the first standby state.

Docking stations and docking methods are provided for use with marking devices used for marking the presence or absence of an underground facility in a dig area. The docking station may serve as a home base for storage of a marking device, for charging the battery of a marking device, for transferring data to and from a marking device, and for securing a marking device against unauthorized use and/or theft. The docking station may be a mobile docking station that is installed in a vehicle or may be a fixed docking station that is installed at a central location in the field, at a central office, at a home base facility, and the like.

Positive electrode active materials are described that have a very high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li_1+xNi_αMn_βCO_γO₂, where x ranges from about 0.05 to about 0.25, α ranges from about 0.1 to about 0.4, β ranges from about 0.4 to about 0.65, and γ ranges from about 0.05 to about 0.3. The materials can be coated with a metal fluoride to improve the performance of the materials especially upon cycling. Also, the coated materials can exhibit a very significant decrease in the irreversible capacity lose upon the first charge and discharge of the cell. Methods for producing these materials include, for example, a co-precipitation approach involving metal hydroxides and sol-gel approaches.

A hybrid electric propulsion system for powering a vehicle using a natural fuel engine and an electric motor. The hybrid electric vehicle is comprised of a drive train; an electric motor for driving the drive train; an auxiliary power unit (APU); an electric energy storage system electrically coupled to the electric motor; and wherein the auxiliary power unit and the electric energy storage system provide energy for powering the vehicle. An electric bus is directly connected to both the auxiliary power unit and the electric energy source and the voltage across the electric bus is substantially the same as the voltage across the electric energy source so that a change in voltage of the electric bus results in the same change to the voltage across the electric energy source. A power management controller is programmed to control output power of the power unit to maintain the energy storage system between a predetermined high voltage set-point and a predetermined low voltage set-point.

A vehicle has a plurality of traveling modes. A display device for the vehicle comprises: a display unit displaying map information; and a control unit causing the display unit to display recognizably, at a portion of roads in the map information, traveling modes that correspond to the roads. Preferably, the control unit sets a destination in response to an instruction received from an operator, searches for a traveling route extending from a starting point to the destination, divides the traveling route into segments, and associates one of the traveling modes with each of the segments. More preferably, the control unit causes the display unit to display the plurality of candidate traveling routes, each with the traveling mode overlaid thereon, and selects in response to an instruction of the operator one traveling route planned to be taken among the plurality of candidate traveling routes.

A cordless power supply comprising a battery, a power conversion unit, a first standard coupling half permanently affixed to the power conversion unit and a second standard coupling half which reciprocally mates with the first standard coupling half is disclosed and claimed. The second standard coupling half includes a first interengaging half and a second interengaging half. The first interengaging half being standardly engageable with the first standard coupling half permanently affixed to the power conversion unit. The second interengaging half is interengageable with a specific battery. The battery may be a dual use cordless tool battery or an original equipment battery. Alternatively, a cordless power supply comprising an interchangeable adapter may be mounted on the power conversion unit for interconnection with a plurality of batteries. Alternatively, a cordless power supply comprising an adapter integral with the power conversion unit may be used with a specific battery type.

In response to a driver's braking request operation, for example, the driver's depression of a brake pedal 85, a hybrid vehicle 20 sets a fraction of a regenerative braking torque by a motor MG2 and a fraction of a braking torque by a brake unit 90 relative to a preset braking torque demand Tr* according to the setting of a speed change ratio in a transmission 60 (steps S280, S290, S310, S320, S390, and S400). The hybrid vehicle 20 controls the motor MG2 to output the regenerative braking torque based on the preset braking torque demand Tr* and the set fraction of the regenerative braking torque, while controlling the brake unit 90 to enable the braking torque based on the preset braking force demand Tr* and the regenerative braking torque by the motor MG2 to be applied in a distributive manner at a preset front-rear braking torque distribution ratio ‘d’ to front wheels 39a and 39b and to rear wheels 39c and 39d.

A non-aqueous electrolyte battery according to the present invention is a non-aqueous electrolyte battery including: a positive electrode including a positive collector and a positive active material containing layer formed on the positive collector; a negative electrode including a negative collector and a negative active material containing layer formed on the negative collector; and a separator provided between the positive electrode and the negative electrode. The positive electrode has a positive collector exposed portion at a part of the positive collector, on which the positive active material containing layer is not formed. An insulating resin film formed of a base substance of a heat resistant resin having a heat resistant temperature of 150° C. or more, the resin film containing a thermoplastic resin therein, is provided at a portion where the positive collector exposed portion and the negative active material containing layer are opposed to each other with the separator positioned therebetween.

A method for starting a cold or frozen fuel cell stack as efficiently and quickly as possible in a vehicle application is based upon a state of charge of a first power source such as a high voltage battery. Power flow between the first power source and fuel cell system is coordinated in conjunction with a specific load schedule and parallel control algorithms to minimize the start time required and optimize system warm-up.

The present invention relates to an electric car which has a battery pack at a constant state of maximum power discharge and to a method of efficiently controlling a motor with due consideration for rechargeable power levels. The control method according to one embodiment of the present invention, comprises the steps of: calculating estimated power levels required, based on current power consumption levels, for providing current from the battery pack to all parts of an electric car, and the required torque according to a driver's activation of the accelerator; comparing the estimated power levels required with the maximum possible power discharge from the battery pack; and enabling maximum possible torque from the motor when the estimated power levels required exceeds the current maximum possible power discharge from the battery pack.

The present invention relates to a battery module, which includes one or more battery cell units, and the battery cell unit includes a battery cell, a fixing member located surrounding an outer circumference surface of the battery cell, and a heat absorbing material located between the battery cell and the fixing member, and as a result, heat generation inside the battery module is suppressed, and ignition between the series-connected battery cell units may be suppressed. Accordingly, excellent charge and discharge efficiency, an excellent cycle property and a lifespan property of the battery may be exhibited without concern for explosion or ignition of the battery module.

An electric vehicle includes a control unit having overcurrent generation judgment unit, inverter selection unit, and inverter drive control unit. The overcurrent generation judgment unit judges whether an overcurrent is generated in an inverter for generation or an inverter for travel. When an overcurrent is generated in one of the inverters, the inverter selection unit selects the other inverter to be driven. The inverter drive control unit stops the driving of the one inverter and drives the other inverter to drive a travel motor or a generator.

The invention provides a thermal runaway control system for a lithium ion battery pack of a new energy automobile, and the battery pack. The control system comprises a water pump, a water tank and at least two groups of battery packs; each battery pack is matched with a three-way valve which is controlled and gated by a BMS; each battery pack liquid cooling plate is provided with a discharging valve which also can be controlled to be opened by the BMS; and a floating pipeline, which can be lowered along with a liquid surface and is connected with inlet water and outlet water of the water tank, is arranged in the water tank. By means of controlling the flow of the water pump and the flowing direction of an anti-freezing solution, the battery pack in thermal runaway can be full by the anti-freezing solution within 10s; when battery pack thermal runaway occurs in certain several packs, the liquid cooling plate valve in the battery pack in thermal runaway is controlled to be opened, and meanwhile, the three-way valves of other packs are controlled to be connected with the water tank; and therefore, spreading of heat to other battery packs can be blocked by means of controlling the thermal runway of a single battery pack or a few battery packs.

The invention provides a charging system combining a power integrated body of the inner space of a vehicle and an outer charging suspension. The charging system aims at overcoming the defect that a few outer charging piles are available when existing electric vehicles have charging requirements. According to the design, a structure which combines the power integrated body used for charging the electric vehicle and installed in the vehicle, and the outer charging suspension outside the vehicle and is suitable for receiving a power source of the inner space of the vehicle is provided. The power integrated body installed in the inner space of the vehicle and composed of a charging pile, a suspension wire, a plug and an accessory is combined with a power supply device, namely a suspension wire and a conventional socket, on the outer charging suspension outside the vehicle through a power receiver, namely a suspension wire and a conventional plug, via a cantilever or a fixed suspension or a movable suspension or a multi-movable suspension in the inner space of the vehicle or above the occupation portion of the vehicle or above the height of the human body on the near side of the vehicle. The electric vehicle can be easily charged in a place with a civil power source, and in combination with a handheld device and the movable suspension which are carried in the vehicle, the limitation of the distance between a power grid power source and a parking place is overcome to the best.

An electric charging system for a vessel, vehicle, or aircraft includes one or more energy storage modules on the vessel, vehicle, or aircraft; a pulse rectifier; a converter; and a voltage control transformer. The one or more energy storage modules are connected to outputs of the pulse rectifier. The voltage control transformer is connected to inputs of the pulse rectifier. The voltage control transformer includes a serial transformer having a plurality of pairs of transformer windings, connected together in series, one winding of each pair being adapted to be connected between the pulse rectifier and an input from an energy source and the other winding is connected to the converter.

The invention relates to a convenient moving waterproof electromobile charging pile, the convenient moving waterproof electromobile charging pile comprises a main body, an operating panel and a foundation, the convenient moving waterproof electromobile charging pile further comprises a waterproof mechanism and a moving mechanism, the waterproof mechanism comprises a baffle and two moving boxes, the moving box is internally provided with a lifting component, the lifting component comprises a first motor, a drive gear, a rack and a connecting block, the moving mechanism comprises a second motor,a drive bevel gear, two moving components and two drive components, the moving component comprises a support shaft, a rotating rod, a connecting rod and two moving wheels, the convenient moving waterproof electromobile charging pile extends and retracts the moving wheels through the moving mechanism, so that the moving convenience of the electromobile charging pile is improved, the operating panel is shielded through the baffle due to the waterproof mechanism in the rainy day or in the idle time of the equipment, and the condition that the electromobile charging pile cannot work normally because the rainwater beats on the operating panel, penetrates into the operating panel and affects the work of an internal element is avoided.

The invention provides a mobile charging pile positioning method, a mobile charging pile and an intelligent charging system, and relates to the technical field of charging piles. After a main controlunit receives the charging information of a device to be charged sent by a ground control center, the main control unit determines a planning path between the mobile charging pile and the device to becharged according to the position information of the device to be charged, the current position of the mobile charging pile and a pre-stored electronic map, controls a mobile actuator to perform a first action according to the planning path, moves the mobile charging pile to a position of the device to be charged, and charges the device to be charged. The method enables the mobile charging pile to accurately locate the position of the device to be charged according to the planning path, achieves that the mobile charging pile automatically searches for the device to be charged to perform charging, does not need a user to find the charging pile, improves the charging efficiency and the utilization rate of the mobile charging pile, and reduces capital input cost and labor cost.

The invention relates to an electric vehicle charging station dispatching system and an ordered charging control method. On the basis of comprehensively considering the maximum charging power of ordered charging piles with adjustable charging power in a charging station and the target electricity utilization power issued by a superior scheduling system, the total target electricity utilization power issued by the superior dispatching system is distributed between the ordered charging piles, so that a value of the charging power of the ordered charging piles is between the minimum charging power and the maximum charging power, and the charging power of the charging piles in the charging station is comprehensively managed. Through the ordered charging control method, formulation of power sharing can be realized, so that transition of the charging behavior of the electric vehicles is guided from a one-way disordered random charging mode to an ordered charging mode, peak-sifting charging is achieved, power grid load fluctuations are reduced, energy losses of a power grid is reduced, and the reliability and economic benefits of a power distribution network are improved.

A method for controlling a hybrid traction assembly includes an initial depleting phase which begins at the beginning of the vehicle mission and where the hybrid traction assembly is controlled to cause depletion of the storage device at a high first mean depletion rate, at least one sustaining phase where the hybrid traction assembly is controlled so that the state of charge is maintained in a predetermined sustaining range. The method further includes a second depleting phase which extends between the initial depleting phase and the sustaining phase, wherein the hybrid traction assembly is controlled to cause depletion of the storage device at a second mean depletion rate, the second mean depletion rate being lower than the first mean depletion rate.

The invention discloses a temperature pre-regulation system and method of a power battery pack and a thermal management system control method, and relates to the technical field of power batteries. The temperature pre-regulation control system comprises a battery pack, a thermal management system, an automobile electricity utilization load and a control system, wherein the control system comprisesa controller, an acquisition module and an instruction module; the acquisition module acquires battery pack parameter information, compares the battery pack parameter information with a preset parameter value in the controller, and controls the automobile electricity utilization load and the thermal management system through the instruction module to realize battery pack temperature pre-regulation. According to the invention, the battery pack can work in a relatively large temperature range, responses can be made in time for various problems of the battery pack, and especially when the discharge current is relatively large and the temperature rise of the battery is delayed, the flow of the cooling liquid is pre-adjusted, so that the uncontrollable condition of the battery is avoided; andmeanwhile, the controller has the functions of continuously learning and optimizing control parameters, and can carry out continuous adjustment according to the driving habit of a driver and the gradual aging of the battery.

The invention relates to a lithium battery dynamic peak power prediction method. The method mainly comprises the following steps: firstly, carrying out SOC-based continuous peak current estimation andequivalent circuit model-based continuous peak current estimation; solving peak current simultaneously meeting the dynamic voltage characteristic, the current limit value, the SOC and the temperatureconstraint of the battery; and obtaining the lithium battery peak power prediction power Pm under the multi-parameter constraint, predicting the lithium battery peak power Pn by using a BP neural network, performing difference comparison on the Pm and the Pn, and performing weighting processing to obtain a final lithium battery peak power prediction result.

In a nonaqueous secondary battery including a pressure-operated current interrupt device, a ratio (Vt/Cr) of a sum Vt (cm³) of an effective pore volume Vp of the positive electrode active material layer, an effective pore volume Vn of the negative electrode active material layer, and a pore volume Vs of the separator to a volume Cr (cm³) of a remaining space in the battery case is 0.92 to 1.05. The volume Cr of the remaining space in the battery case is calculated by subtracting a volume Ce of the electrode body, a volume Cna of the nonaqueous electrolytic solution, and a volume Cc of auxiliary components from a volume Ct of the battery case. The remaining space volume Cr (cm³) is 14.8 vol % or higher of the volume Ct (cm³) of the battery case.

An energy management strategy for boats and ships is provided. The output and distribution of energy are dynamically adjusted in accordance with commands, tides, time, locations, weather, hydrologic conditions and other factors may impact the sailing, in order to optimize the energy efficiency of boats and ships.

An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.

A damping control device for an electric vehicle is having a continuously variable transmission between a motor and left and right front wheels. The damping control device drive system includes a feedback control unit, which suppresses a vibration accompanying a disturbance in the rotational speed of the motor, and an operation determination unit, which determines whether or not an absolute value of a second-order differential of the transmission ratio is equal to, or greater than, a predetermined value, wherein when the absolute value of the second-order differential of the transmission ratio is equal to, or greater than, the predetermined value. The feedback control unit performs control of the output torque of the motor whereby a compensation torque component for suppressing a vibration accompanying a gear shift is subtracted from a compensation torque.