822 results about "Electric bus" patented technology

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.

The invention relates to the technical field of battery management systems for electric vehicles, and provides a battery management system for a pure electric bus. The battery management system has three working modes of on-vehicle running, whole vehicle emergent charging and quick replacing, and mainly comprises a main control module, a detection module, a handheld device, a monitoring computer and an on-vehicle battery pack. The battery management system can transmit the obtained real-time battery state and detailed information on the on-vehicle battery pack after processing to a whole vehicle controller, an on-vehicle instrument, and the monitoring computer for online monitoring; and under the whole vehicle emergent charging and the quick replacing modes, the battery management system can perform data interaction with a charging device to achieve safe charging. The battery management system is also provided with the handheld device, and can achieve voltage acquisition of a single-box battery, and the debugging and the fault diagnosis of the detection module. The battery management system has the advantages of strong communication functions, perfect charging management, complete auxiliary equipment, and high safety, reliability and stability.

The invention provides an electric bus integrated control hardware in-loop test platform and a test method. The electric bus integrated control hardware in-loop test platform is formed by an air source component, a line control air brake system, a conventional brake component, a driving control component, a signal simulation component, a target machine, and a host computer based on line control air brake, and the electric bus integrated control hardware in-loop test method comprises an acceleration test, a brake test and a steering test. According to the test platform and the test method, accurate adjustment of the brake pressure of four wheels is realized through front and rear axle proportion relay valves and four ABS solenoid valves in a line control air brake system, and integrated control of electric buses is realized with the combination of signal simulation components including a two-degree-of-freedom rotation platform and a wheel speed simulation motor and the corresponding test method.

The invention discloses an electric bus battery quick-change robot system and a quick-change method. The electric bus battery quick-change robot system comprises a robot body, the robot body consists of a mechanical portion and an electric control system, wherein the mechanical portion comprises a horizontal moving unit, a carrying platform unit and a bearing unit which are arranged on an X rectangular coordinate direction, a Y rectangular coordinate direction and a Z rectangular coordinate direction, the carrying platform unit comprises a carrying platform and a battery driving mechanism disposed on the carrying platform, and a battery pushing mechanism is arranged on the battery driving mechanism; and the electric control portion comprises a data acquisition device, a power driving mechanism and an I/O (input/output) module, and the data acquisition device is connected with a master control computer system. When the quick-change robot is applied, positioning precision in a quick-change process is high, relative displacement is low, positions are accurate, and power batteries of various electric buses can be quickly changed by the aid of the electric bus battery quick-change robot system.

The invention discloses a system and a method for quickly replacing electric bus batteries. The batteries are arranged above battery replacing robots instead of being arranged at an original position, so that the robots can acquire the charged batteries from above without turning around, and then the batteries can be replaced by the battery replacing robot on the sides as same as those of the battery replacing robot, so that occupied space of the batteries is saved, a turning mechanism of the battery replacing robot is omitted, equipment structure is simplified, and reliability and replacing efficiency of equipment are further improved. The system comprises charging storage rack units with the charged batteries thereon, at least one lifting battery replacing robot on the side as same as that of the corresponding charging storage rack unit is arranged and matched with the corresponding charging storage rack unit, each lifting battery replacing robot moves along the length direction of the corresponding charging storage rack unit, and is used for taking the batteries needing to be replaced down from an electric bus, lifting the batteries needing to be replaced to a battery storage position on the corresponding charging storage rack, taking the charged batteries and descending to a battery replacing position to complete battery replacement of the electric bus.

The invention relates to an electric commercial vehicle battery box single-trip replacement robot which has the advantages of reducing the land occupation because the size of a replacement robot is effectively reduced, and being easily matched with an electric bus because an installing mode of a battery replacement device in the existing replacement robot is changed into a suspension installing mode. The electric commercial vehicle battery box single-trip replacement robot comprises a frame assembly, wherein the frame assembly is arranged on a walking assembly, a temporary storage rack is arranged at one side of the frame assembly, a control cabinet is arranged at the other side of the frame assembly, a lifting transmission assembly is arranged at the top of the frame assembly and is connected with a lifting assembly and also connected with a balance weight assembly, an objective table assembly capable of rotating in situ is suspended at the lower part of the lifting assembly, a fork assembly and a battery push handle assembly are arranged at the bottom of the objective table assembly, V-shaped wheel sets matched with a rectangular steel upright of a replacement robot frame are arranged at four corners of the lifting assembly, an objective table assembly rotating drive device is arranged on the lifting assembly, and a limit device is arranged on the objective table assembly.

The invention discloses a bottom power taking self-locking electric bus battery box system capable of quickly changing a battery. The system comprises a battery box (1), a tray (2) used for bearing the battery box and arranged on an electric bus, mobile equipment (4) for conveying the battery box, and a grabbing device (5) arranged on the mobile equipment; and a battery box locking and unlocking device (3) is arranged on the tray. Through the system, automatic assembly of the battery box in the electric bus battery box system is realized, and the problems of over positioning, deformation of power wire connection pegs, breakage, arc discharge, welding, difficulty in automatically realizing unlocking due to impact of the battery box to a bolt of a locking mechanism in jolt and deformation of the battery box due to impact in jolt. The system is reasonable, reliable, simple and compact in structure, and can full-automatically, quickly and conveniently realize quick change of the power battery.

The invention discloses a photovoltaic parallel grid charging system for an electric car, which comprises a photovoltaic component array, a parallel grid inverter, a component and environment monitoring system, a transformer, a power distribution cabinet, a meter, a charging control system, a charging monitoring system and a charger, and can be applied to golf battery cars, electric buses and other electric car charging stations. The charging control system can control an access number and an access sequence of the charger to realize the charging management of the electric car. The charging monitoring system monitors the charging information of a battery over and again and displays the charging states of all accessed electric car battery packs. The charger completes detailed charging control and overcharge protection of the electric car battery packs. An electric car photovoltaic parallel grid charging station can realize the charging organization and management of a plurality of electric cars of different types produced by different producers, and can realize quick charging, pure solar energy charging and other charging forms for the electric cars.

Described are a method and apparatus for charging an electric vehicle powered by ultracapacitors. The vehicle includes a current collector device for collecting power from an external power source, an electric motor module for providing a driving force to the vehicle, an ultracapacitor module, and a charger device. The ultracapacitor module includes one or more ultracapacitors. The ultracapacitor module is coupled to the current collector device for receiving power and is coupled to the electric motor module for providing power. The charger device is connected to the current collector, the ultracapacitor module, and to a temperature signal associated with one or more of the one or more ultracapacitors. The charger device is configured to adjust power supplied to the ultracapacitor module based on the temperature signal.

The invention discloses a railway infrastructure detection system. The system involves a positioning synchronization subsystem, and a rail geometry detection subsystem, a rail contour detection subsystem, a rail state detection subsystem, a rail wheel force detection subsystem, a catenary geometric parameter detection subsystem, a pantograph-catenary current collection parameter detection subsystem which are in communication with the positioning synchronization subsystem. According to the system, on the basis of the structural characteristics and operation modes of urban rail transit infrastructure, the plurality of detection subsystems are integrated on a urban rail transit electric bus, rail geometric parameters, rail contour abrasion, rail state information, rail wheel interaction force, catenary geometric parameters and pantograph-catenary current collection parameters of the urban rail transit infrastructure are synchronously collected and accurately measured, the detection efficiency is improved, the urban rail transit operation maintenance cost is reduced, and the system can be widely applied to urban rail traffic construction and operation and maintenance.

The invention relates to a cell parameter transmission device for a pure electric bus, comprising a control mainboard and an expansion board. The control mainboard is provided with a CPU of ARM920T based on an ARM core and internally integrated with a CAN bus interface so that the device has simple assembly structure, high-speed start and lower cost. For improving the communication reliability and the systematic reliability of the device, a watchdog circuit is designed on the expansion board to automatically detect a communication link state and a halted state of the device and recover from the halted state. The device is used for acquiring a great amount of cell parameter data by the CAN bus on a vehicle and transmitting a great amount of cell parameter data with a monitoring center in a GPRS wireless communication mode, wherein the cell parameter data comprise a voltage value of each single cell, a temperature value of each node of a cell box, and the like. The invention takes important effect on monitoring the cell parameters of a vehicle in the monitoring center.

The invention discloses a suspension type wireless charging system of an electric bus platform. The suspension type wireless charging system comprises an electric energy emission device and an electric energy receiving device, wherein the electric energy emission device is arranged on the bus platform, the electric energy receiving device is arranged on an electric bus, the electric energy emission device comprises a linear motor, a position sensing adjustment system, a height adjustment arm, an emission coil, a primary electric energy adjustment device and a signal receiving processing system, and the electric energy receiving device comprises a receiving coil, a secondary electric energy adjustment device, a signal emission device, a vehicle-mounted battery pack, a vehicle-mounted display control device and a shielding device. The brand-new suspension type wireless charging system of the electric bus platform, proposed by the invention, can be used for an ordinary structural electric bus, the electric bus driving to the bus platform can be charged in a wireless way, the electric energy transmission efficiency can be effectively improved, the capacity of the battery pack is reduced, the service lifetime of a battery is prolonged, and the charging cost is greatly reduced.

A method of generating electric power includes providing at least one open-winding generator having at least one winding, wherein the at least one winding has a first terminal and a second terminal. The method also includes electrically coupling the first terminal to a first electric power electronics apparatus via a first electric bus and electrically coupling the second electric terminal to a second electric power electronics apparatus via a second electric bus. The method further includes inducing and regulating a first voltage on the first electric bus and inducing and regulating a second voltage on the second electric bus.

An intelligent battery optimization management and equalization system that also monitors all cells within a battery, The system will ensure all cells are charged to maximum capacity, discharges the full capacity of each cell, perform equalization of charges between all the cells, manages and monitors each cell within a battery pack, The system further includes a multi-pulse rectifier transformer to efficiently and reliably convert high voltage AC input from power grids to DC voltage to effectively charge electric vehicles, industrial electrical vehicles, electric buses, portable battery packs, and/or battery-operated vehicles,

An electric bus with fastly charged super capacitor set features that when the electric bus is stopped on a bus stop, its current collector is extended out for fastly charging its super capacitor set, and when it leaves from the bus stop, its current collector is withdrawn.

The invention discloses an electric bus composite braking hardware-in-the-loop test platform and method based on an electronic-controlled braking system. The test platform is composed of a gas-generating component, the electronic-controlled braking system, a traditional barking component, a wheel speed simulation component, a single chip microcomputer controller, an upper computer and a target machine. The hardware-in-the-loop test platform takes a third generation electronic-controlled braking system of the WABCO company as a basis and combines related hardware and software, so that precise adjustment of braking pressure of front and rear axles and four wheels is achieved, and the control problem of normal braking and emergency braking of an electric bus is solved through a regenerative braking control strategy and an ABS control strategy; by means of the test platform and method, combined testing of the electronic-controlled braking system and a regenerative braking system of the electric bus is achieved.

The invention relates to a new energy pure electric bus battery and motor combined thermal management system and method. The thermal management system comprises a radiating module, a heat generation module, a control module and a circulation module. The radiating module comprises a radiator and a radiating fan connected with the radiator. The heat generation module comprises a motor and a motor controller connected with the motor. The control module comprises a whole bus controller and a power lithium battery management system connected with the whole bus controller through a signal line. The circulation module comprises a first circulation water pump, a second circulation water pump, circulation pipelines, a first three-way valve, a second three-way valve, a first solenoid valve and a second solenoid valve. According to the thermal management system, a power lithium battery and the driving motor can be subjected to effective thermal management to enable the power lithium battery and the driving motor to work in the most suitable temperature range to give play to the optimal using performance, the whole bus mass and cost can further be reduced, heat produced in the operation processes of the driving motor and the motor controller is effectively used, and energy is saved.

The invention discloses an optimized operation method for an electric bus charging and battery swapping station. The optimized operation method for the electric bus charging and battery swapping station comprises the steps of firstly, establishing a vehicle battery swapping demand and battery pack charging demand model on the basis of a battery swapping rule; secondly, giving an evaluation index,establishing a battery pack evaluation system according to an entropy weight method and optimally matching a vehicle battery swapping demand and a battery pack charging demand to guarantee the balanced use of battery packs and prolong the service lives of the battery packs; and establishing a battery pack orderly charging double-layer optimized model in the electric bus charging and battery swapping station on the basis, and optimizing the battery swapping rule and a battery pack charging scheme in the electric bus charging and battery swapping station in a combined manner to obtain an optimalbattery swapping rule and an optimal charging scheme. Compared with a traditional operation method, the optimized operation method for the electric bus charging and battery swapping station has the advantage that adverse effect on a power grid due to large-scale access of the battery packs to the power grid is reduced on the basis of guaranteeing the safe and economic operation in the electric bus charging and battery swapping station.

A driverless bus comprises a pure electric bus, an outdoor camera, an indoor camera, a front left laser radar, a front right laser radar, a rear left radar, a rear right radar, a manual steering wheel, an electric steering wheel, a pedal brake pump, an electric brake pump, a Hall speed regulator, an electric front door, an electric rear door, a cash box, a card wiping machine, a voice player, a vehicular computer, a storage battery pack, a navigation control box, a left tracking optical head, a right tracking optical head, navigation grooves, navigation routers, a bus route and a power supply monitoring station. The driverless bus has the advantages that the navigation control box and the navigation grooves are added to the navigation system of the bus, the visual navigation reliability problem of an existing driverless bus is solved while the power supply problem of a pure electric car is solved, the notches of the navigation grooves are only 3cm and are parallel with the pavement, the passing of vehicles and pedestrians at city road intersections or on a pedestrian crosswalk is affected, and the navigation grooves do not occupy the pavement and do not affect traffic and city appearance; the driverless bus can provide reliable and full-automatic intelligent bus servers for people, does not need fuel and is energy-saving and environmentally friendly.

The invention discloses a photovoltaic off-grid charging station system for an electric car, which consists of a photovoltaic component array system, a photovoltaic controller, an energy storage battery system, a component and environment monitoring system, a charger array and control system, and a commercial power emergency charging system, and can be used for golf battery cars, electric buses and other electric cars. The photovoltaic component array system mainly completes converting solar energy into direct current; a charging controller realizes the reasonable distribution of electrical power; the charger array and control system is connected between the photovoltaic component array system and the electric car for charging a battery of the electric car; the energy storage battery system is mainly used for storing the electrical power generated by a photovoltaic component, and charges the electric car under the conditions of overload or insufficient continuous sunshine; and the commercial power charging system is mainly used for solving the problems of time limit and amount limit of photovoltaic electrical power. The photovoltaic off-grid charging station for the electric car can realize the charging organization and management of a plurality of electric cars of different types produced by different producers.

The invention relates to a low-floor gate-type wheel-side motor rear axle for an electric bus. The low-floor gate-type wheel-side motor rear axle comprises an axle shell, a motor, a first-stage speed reducer, a second-stage speed reducer, a brake and a wheel hub, wherein the front end of a shell of the first-stage speed reducer is connected with the axle shell; a stator of the motor is fixed in the front end of the shell of the first-stage speed reducer; a rotor is connected with the output shaft of the motor to drive the output shaft of the motor to rotate; the output shaft of the motor is parallel to the axial direction of the wheel hub; the first-stage speed reduction is transmission of a cylindrical bevel gear pair, and second-stage speed reduction is transmission of a cylindrical gear planet system; the brake is arranged outside the shell of the first-stage speed reducer and used for braking the wheel hub; and the motor, the first-stage speed reducer, the second-stage speed reducer, the brake and the wheel hub are symmetrically arranged on the left side and the right side of the axle shell. A wheel-side driving axle motor of the electric bus is integrated in the axle shell; a power transmission direction is parallel to the axial direction of the wheel hub, namely a wheel; and the low-floor gate-type wheel-side motor rear axle has a rational and compact structural design and high transmission efficiency.

A coordination charge control method for an electric bus quick charge station includes initiating load information and electric price information of a power distribution grid of a main control computer in future 24 hours; acquiring battery information of an electric bus and a serial number of the electric bus and sending the information and the serial number to the charge station; performing parameter configuration of the main control computer; making a coordination charge control strategy of the electric bus quick charge station; enabling a client to send control signals to different chargers for controlling the switching of the chargers. Therefore, the coordination charge control of all electric buses in the quick charge station is realized and effective allocation of power resource is realized under the premise of satisfying electric energy requirement of the buses.