277 results about "Electric traction" patented technology

A safety circuit for a high-voltage electrical traction system comprising a plurality of electric machines. The safety circuit comprises a primary high voltage interlock loop (HVIL) circuit configured to be connected to a battery and for each of the plurality of electric machines, a secondary high voltage interlock loop (HVIL) circuit, wherein each secondary HVIL-circuit is controlled by a corresponding switch unit configured to break the secondary HVIL-circuit if a fault in a corresponding electric machine is detected, and wherein the switch unit comprises a trigger device configured to break the primary HVIL-circuit if the switch unit is opened.

The invention relates to an electrical traction network (1) for a motor vehicle, comprising a separately excited synchronous machine (2), a pulse-controlled inverter (3), a high-voltage battery (4), a DC / DC converter (6) and a charger (5), wherein the charger (5) has a mains connection (9) for an external AC voltage network, wherein the charger (5) is connected to AC voltage outputs of the pulse-controlled inverter (3) via first switching elements (S1), wherein the AC voltage outputs of the pulse-controlled inverter (3) are connected to the phases of the synchronous machine (2) via second switching elements (S2), wherein the DC voltage connections (HV+_PWR, HV-_PWR) of the pulse-controlled inverter (3) and an output of the DC / DC converter (6) are connected to the high-voltage battery (4) via third switching elements (S3), wherein the inputs of the DC / DC converter (6) are connected to the DC voltage connections (HV+_PWR, HV-_PWR) of the pulse inverter (3),wherein fourth switching elements (S4) are arranged between the output of the DC / DC converter (6) and two half-bridges of the DC / DC converter (6), wherein the DC / DC converter (6) is connected to a rotor winding of the synchronous machine (2) via fifth switching elements (S5), and a method for operating such an electrical traction network.

A ridable work vehicle includes an electric traction drive and an arm drive unit that is operable to move a loader arm assembly. The loader arm assembly includes a mechanical interface operable to mount a work attachment. The work vehicle includes a detachable operator control operable to wirelessly communicate with a controller of the work vehicle. One or both of the controller and the detachable operator control is operable to measure a proximity distance between the work vehicle and the detachable operator control. A platform sensor is operable to provide a platform signal in response to detecting an operator on the platform. The controller is operable to: determine a disposition of the operator relative to the work vehicle based on the proximity distance and the platform signal; and change an operating setting of the work vehicle based on a change in the disposition of the operator.

The invention relates to a driving dynamics system for a vehicle, comprising at least one wheel brake (RB1, RB2.RB3, RB4) for dissipatively braking a wheel of the vehicle; at least one brake unit (EMB, EHB) assigned to the at least one wheel brake (RB1, RB2, RB3, RB4) and configured to generate a dissipative braking torque by means of the at least one wheel brake (RB1, RB2, RB3, RB4); at least one electric traction motor (TM1, TM2, TM3, TM4) controllable to generate a regenerative braking torque for at least one wheel or axle of the vehicle; and a central control unit (M-ECU domain) which is configured to control the at least one brake unit (EMB, EHB) and the at least one electric traction motor (TM1, TM2, TM3, TM4) for a braking function in combination with one another such that a combined braking torque can be generated by means of the at least one brake unit (EMB, EHB) and the at least one electric traction motor (TM1, TM2, TM3, TM4).The braking function relates to a control case in which a basic braking torque and a controlled additional braking torque are controlled and / or regulated simultaneously; wherein optionally the basic braking torque is generated by the at least one braking unit (EMB, EHB) and the controlled additional braking torque is generated by the at least one electric traction motor (TM1, TM2, TM3, TM4); or the basic braking torque is generated by the at least one electric traction motor (TM1, TM2, TM3, TM4) and the controlled additional braking torque is generated by the at least one braking unit (EMB, EHB); or the at least one braking unit (EMB, EHB) and the at least one electric traction motor (TM1, TM2, TM3, TM4) each jointly generate the basic braking torque and the controlled additional braking torque.

A cooling system for an electric traction machine includes a looped conduit system for conducting a first cooling liquid and a circulation pump for conveying the first cooling liquid in a first circulation direction. The cooling system includes an expansion tank filled at least partially with the first cooling liquid and a gas, and a motor input terminal for fluidically connecting the looped conduit system on an input side to the electric traction machine. The cooling system includes a motor output terminal for fluidically connecting the looped conduit system on an output side to the electric traction machine and a first heat exchanger for dissipating heat from and / or supplying heat to the first cooling liquid. In the first circulation direction, the first heat exchanger is arranged downstream of the electric traction machine and connected via the motor input and output terminal and upstream of the expansion tank.

An arrangement for a vehicle, the arrangement comprising an electric traction motor, an energy system comprising a traction battery, the energy system being configured to feed electric energy from the traction battery to the electric traction motor in a first load condition, and configured to receive electric energy generated by the electric traction motor in a second load condition, and an energy dissipater electrically connected to the energy system, wherein the arrangement further comprises processing circuitry configured to determine an indication of a load condition change of the energy system from the first load condition to the second load condition, and control the energy system to feed electric energy to the energy dissipater in response to the indication of the load condition change.

A mobile device (10) that can be connected to an OBD2 interface (9) of an electrically powered motor vehicle (1) is designed to read data relating to the state of charge of an electric traction battery (2) of the motor vehicle (1) from the motor vehicle (1) via the OBD2 interface (9) and to transmit it to an external device (12) outside the motor vehicle (1).

A locomotive has a power bus that provides power to components of the locomotive when operating in a motoring mode or a charging mode. A plurality of batteries, one or more traction motors, and a charging source are all connected to the power bus. The batteries are operable to provide power to the power bus when operating in the motoring mode, and to receive power from the power bus when operating in the charging mode. The traction motors are operable to receive power from the power bus when the locomotive is operating in the motoring mode. The charging source intermittently provides charging power to the power bus to charge the batteries when the locomotive is operating in the motoring mode or in the charging mode. The charging source is selectively activated and deactivated based at least in part on the state of charge of the batteries.

The invention discloses a harmonic suppression method and system of a rail transit electric traction system. The system comprises a traction unit harmonic response acquisition module, a traction group construction and intra-group influence analysis module, a traction group collaborative behavior analysis module, a collaborative suppression strategy generation module and a suppression resource regulation and control module. The method comprises the following steps: dividing a plurality of traction units on the same train into traction groups, analyzing harmonic response information of the traction units on a traction group level to generate comprehensive harmonic influence characteristics, analyzing action results of the plurality of traction groups on a traction power supply section level, and judging whether a harmonic collaborative amplification or collaborative instability trend exists or not; and thus, a collaborative harmonic suppression strategy for the traction group or the traction unit is generated. Through differential regulation and control on harmonic suppression resources and in combination with feedback correction, dynamic adjustment of a harmonic suppression process is realized, and pertinence of harmonic suppression under a complex operation condition and operation stability of a traction power supply system are improved.

The invention relates to a method for controlling a thermal conditioning system (100) for a motor vehicle, comprising a refrigerant circuit (10) comprising:- A main loop (A) successively comprising:- a compressor (7),- a first exchanger (1) thermally coupled with an interior air flow (Fi),- a second exchanger (2),- A first bypass branch (B), - A second bypass branch (C), comprising a third exchanger (3) thermally coupled with an element (25) of an electric traction chain,- A third bypass branch (D) comprising a fourth exchanger (4) exchanging heat with the interior air flow (Fi), the method comprising the successive steps:- circulating refrigerant at high pressure in the first exchanger (1),- expanding the refrigerant to an intermediate pressure and circulating it in the third exchanger (3),- expand the refrigerant fluid to a low pressure and circulate it in the fourth exchanger (4). Abstract figure: Figure 3,

An energy consumption optimization method for a hybrid electric vehicle (HEV) having a hybrid powertrain includes obtaining a plurality of operating parameters of the hybrid powertrain, the hybrid powertrain comprising one or more electric traction motors powered by a battery system and an engine configured to drive the HEV and selectively recharge the battery system, obtaining trip information indicative of a length or duration of a current trip of the HEV, determining a remaining energy in the battery system based on the plurality of operating parameters of the hybrid powertrain, determining a trip energy needed for the hybrid powertrain to complete the current trip of the HEV based on a plurality of operating parameters of the hybrid powertrain and the trip information, comparing the remaining energy in the battery system to the trip energy, and controlling operation of the hybrid powertrain based on the comparing.

An electric traction axle / beam, e-axle / e-beam, for a vehicle comprising at least one electric machine, a pair of drive shafts each connected to a respective wheel of the vehicle and a transmission chain operatively connecting the electric machine to the pair of drive shafts,the transmission chain comprising a first transfer system, a second transfer system, and a differential unit operationally interposed in series between them,the drive shafts being coaxial to a longitudinal axis of the axle, the electric machine being subtended by a parallel and separate axis of the longitudinal axis.

A mining machine having a hybrid diesel-electric drivetrain with launch control includes a diesel engine, an electric generator in communication with the diesel engine to produce electrical power, at least one electric traction motor, at least one brake resistor, and a power controller including a processor. The processor is configured to initiate launch control by receiving an instruction to initiate launch control, increasing electrical power to the at least one brake resistor, increasing power output of the diesel engine to cause the electric generator to produce the increased electrical power, and, upon receiving a launch command, redirecting the electrical power from the at least one brake resistor to the at least one electric traction motor.

The invention discloses a pipe diameter self-adaptive electric traction type threading apparatus for building electrical construction, and particularly relates to the technical field of electric traction type threading apparatuses, the threading apparatus comprises a hand-held threading apparatus body provided with a wire conduit, and the end part of the wire conduit is provided with an inclined pipe; elastic limiting plates which are arranged in a circular array mode and attached to the wire are movably arranged on the inner side of the end of the inclined pipe, and curved surface parts arranged on the elastic limiting plates face a port of the inclined pipe and protrude out of the port of the inclined pipe. According to the electric traction type threading apparatus, the curved surface part faces the port of the inclined pipe and protrudes out of the port, so that the threading apparatus can be directly attached to the surface of a wire, the threading apparatus is allowed to adapt to wires with different pipe diameters, meanwhile, the elastic limiting plate can reduce rigid contact between the wire and the pipe opening, direct friction between the wire and the edge of the fixed pipe opening is avoided, and the threading effect is improved. And the abrasion problem caused by sliding friction between the wire and the port corner is reduced.

The application provides a mobile filter cake crushing device and a plate-and-frame filter press, wherein the mobile filter cake crushing device comprises a mobile vibration and positioning integrated mechanism, a filter cake crusher, a guide rail, a vibration rod, a homing contactor and a return contactor; the mobile vibration and positioning integrated mechanism moves along the guide rail with the filter cake crusher under the traction of an electric traction mechanism. When discharging is completed, the mobile vibration and positioning integrated mechanism moves along the guide rail with the filter cake crusher under the traction of an electric driving mechanism, is automatically positioned at the lower part of the discharging filter plate, and vibrates and crushes the large filter cake. The application solves the problem of how to crush large filter cake to prevent them from forming an arch in the hopper below the plate-and-frame filter press.

1. The name of the design product: side guard plate. 2. The use of the design product: used for the side guard plate of the bottom replacement electric traction vehicle battery replacement system. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a motor constant speed control method for an electric tractor, and relates to the technical field of line construction, and the method comprises the steps: a tension detection module which collects a tension signal of a wire in the paying-off operation of a high-voltage transmission line in real time; the frequency identification module is electrically connected with the tension detection module and is used for performing frequency domain analysis on the tension signal and identifying a periodic disturbance frequency corresponding to tension fluctuation; the self-adaptive control module comprises a sliding mode controller, and the sliding mode surface design of the sliding mode controller is combined with the periodic disturbance frequency, and a sliding mode control signal is generated based on a traction machine motor rotating speed feedback signal and a rotating speed instruction signal. The sliding mode controller is combined with disturbance frequency design, the anti-interference capacity is high, even if external disturbance exists, constant-speed operation of a traction machine motor can be maintained, paying-off speed fluctuation is reduced, the straightness and tension consistency of wire laying are guaranteed, the operation risk is reduced, the overall efficiency is improved, and stable constant-speed and tension control is achieved; and the manual intervention and fault shutdown times are reduced.

An oil cooling arrangement cools at least an electric traction machine of a vehicle. The arrangement has a cooling circuit to provide oil to the electric traction machine. A planetary gear set has a plurality of planetary members, the planetary members being a sun gear, a ring gear and a planet carrier carrying a plurality of planet gears. A pinion is operably driven by the transmission of the vehicle. The pinion is connected to drive a first planetary member of the planetary gear set. An electric motor is connected to drive a second planetary member of the planetary gear set, the second planetary member is different to the first planetary member. An oil pump is connected to a third planetary member of the planetary gear set such that the oil pump is operably driven by the planetary gear set to pressurize oil in the cooling circuit, the third planetary member is different to the first and second planetary members.

The present invention relates to a method for diagnosing a water injection system (3) of an internal combustion engine (2) of a hybrid electric vehicle (100), comprising: providing water at a defined test water pressure by means of a water supply device (3.3), closing a shut-off valve (3.4) when water at the defined test water pressure is provided, injecting a defined target quantity of water into an intake manifold (2.2) of the internal combustion engine (2) via the injection nozzle (3.1), and determining a pressure after injection in a section of the water line (3.4) located between the injection nozzle (3.1) and the shut-off valve (3.4).2) remaining residual water pressure, wherein a current engine load of the internal combustion engine (2) is determined before injection, wherein the determined current engine load is compared with a load threshold value, and wherein the internal combustion engine (2) is subjected to an additional load by operating an electric traction motor (1) of the hybrid electric vehicle (100) in generator mode if the determined current engine load is less than the load threshold value. The present invention further relates to a hybrid electric vehicle (100) with a diagnostic unit (4) which is configured to carry out a method according to the invention.

A vehicle system for an electrified vehicle that provides cost information for operating the electrified vehicle in a drive mode includes an electric traction motor configured to provide drive torque to a plurality of wheels, a high voltage battery system configured to power the electric traction motor, one or more sensors configured to monitor tire wear of each wheel of the plurality of wheels, and a human machine interface (HMI) configured to provide a plurality of user selectable drive modes. A controller is configured to detect a user selected drive mode, receive tire cost data for each wheel, receive tire wear data from the one or more sensors, determine a tire wear cost for operating the electrified vehicle in the user selected drive mode, based on the tire cost data and the tire wear data, and display the tire wear cost on the HMI.

The invention discloses a multi-standard power supply system and method for a locomotive test, and relates to the technical field of test power supplies, and the structural design of the system is as follows: an input power supply is a three-phase alternating current 10kV power supply; the high-voltage switch K realizes access control and isolation of the system and a public power grid, the connection reactor L realizes energy buffering and inhibits switch ripples in output current, and the soft charging circuit pre-charges the three-stage converter. The three-level converter converts three-phase alternating current 10kV into DC1500 / 750V and outputs the DC1500 / 750V to the direct-current bus, one path of the direct-current bus supplies power to a subway vehicle test line, and the other path of the direct-current bus is inverted into single-phase alternating current 25kV through the output inverter and supplies power to a railway locomotive test line. According to the invention, alternating current test conditions of railway electric traction locomotive vehicles and direct current test conditions of subway vehicles can be satisfied, reliability and quality of power supply are ensured, repeated construction is reduced, and resource waste is avoided.

The invention relates to the field of electric hoists, and discloses a traction and hoisting dual-purpose direct current lithium battery type traction machine which comprises a traction machine body, a rope drum arranged in the traction machine body and a steel wire rope wound on the rope drum, and further comprises a brake mechanism, a traction mechanism, a hoisting mechanism and a hoisting mechanism, and the rotation of the rope drum is controlled by a permanent magnet brushless direct current motor arranged on the traction machine body; the self-locking device is in transmission connection between the output end of the permanent magnet brushless direct current motor and the rope drum and can be self-locked when the rope drum is to be driven to rotate reversely by external force so as to prevent the rope drum from rotating reversely; the wire arranging mechanism is provided with a guide part capable of guiding the steel wire rope in the axial direction of the rope drum, a brake mechanism arranged in the wire arranging mechanism can prevent the rope drum from rotating reversely under the action of external force, so that a traction machine can stably and vertically hoist a heavy object in the air, and the arranged wire arranging mechanism can guide the winding of the steel wire rope; when the tractor horizontally drags a heavy object, the steel wire rope can be tidily wound on the rope drum, so that the tractor realizes the dual purposes of traction and hoisting.

The invention relates to a method for controlling an electric all-wheel drive train of a motor vehicle, in which an electronic computing device determines a total torque to be implemented by the driver and a current axle speed of the motor vehicle (V1), a motor torque to be provided by the respective electric traction motors of the motor vehicle to achieve the total torque is determined using a predetermined characteristic map (V2), and the respective electric traction motors are individually controlled (V3) to trigger the provision of the determined respective motor torque by the respective electric traction motor, wherein the characteristic map contains values ​​for different combinations of total torques and axle speeds of the motor vehicle desired by the driver.The respective motor torques to be provided individually by all electric traction motors of the motor vehicle are specified.

The application discloses a configuration method of a hydrogen energy train, which comprises a group of electric traction force motors, fuel cells for providing power required by traction force through reaction of hydrogen and air, a heat exchange system, an air system for providing air for the fuel cells, a cooling system for cooling the fuel cell generator, a group of batteries for storing power generated by the fuel cell generator, an electronic flow system, and a storage tank vehicle and corresponding hydrogen conveying device for storing a large amount of liquid hydrogen. The method combines clean and renewable hydrogen energy with railway transportation, and provides a reliable and pollution-free transportation mode. In particular, in order to cope with long-distance transportation, the method uses liquid hydrogen as transportation fuel, and greatly improves the endurance of the train. In order to further save energy, the application further introduces a heat exchange system, so that the excess cold energy in the liquid hydrogen and the excess heat generated by the fuel cells are used in the air conditioning system of the locomotive.

The invention relates to a motor-gearbox assembly (1) for an electrically driven motor vehicle, comprising at least one electric traction machine (5), at least one gearbox arrangement (7) which is operatively connected to the electric traction machine (5), and at least two wheel drive shafts (3) which are arranged coaxially with a drive axle (4) of the motor vehicle and are operatively connected to the gearbox arrangement (7). The at least one electric traction machine (5) and the at least one gearbox arrangement (7) are arranged within a housing (2) of the motor-gearbox assembly (1). Functional components and / or functional regions of the at least one electric traction machine (5) are formed by the housing (2) of the motor-gearbox assembly (1).

A hybrid electric vehicle (HEV) includes an internal combustion engine, an electric traction motor, and a motor / generator configured to drive the internal combustion engine or be driven by the internal combustion engine to generate electricity to charge a high voltage battery and / or drive the electric traction motor. An exhaust aftertreatment system includes a gasoline particulate filter (GPF), and a control system includes a controller for monitoring and performing a regeneration operation of the GPF. The controller is programmed to determine the GPF needs to be regenerated, and determine if a temperature of the GPF meets or exceeds a predetermined threshold indicating a GPF regeneration can occur. Upon an engine shutdown event, if the temperature meets or exceeds the predetermined threshold, the controller gradually spins down a speed of the internal combustion engine in fuel shut-off to generate a flow of air to the GPF to initiate a GPF regeneration.

A method for operating a drive device for a motor vehicle, includes a traction battery having a plurality of cell modules and a drive unit which is designed as an electric traction machine and is electrically connected via an inverter to electrical connections of the traction battery. The cell modules can be electrically connected in different ways between the connections. The cell modules are divided up into battery modules which in each case contain the same number of electrically parallel-connected cell modules and are electrically connected in series between the connections. A number of the battery modules is adapted during operation of the drive device in such a way that an electrical voltage applied to the connections corresponds to at least an operating voltage of the traction machine.

A working vehicle including a ground-engaging propulsion structure, an electric traction motor for driving the ground-engaging propulsion structure, a battery for powering the electric traction motor, and a controller. The controller is configured to: a) determine whether the working vehicle is positioned on an uphill gradient; b) determine whether a state of charge of the battery is below a charge threshold; and c) when it is determined that the working vehicle is positioned on an uphill gradient and the state of charge is below the charge threshold, limit a power consumption of the electric traction motor to a restricted power consumption which is less than a maximum power consumption of the electric traction motor.

Method for exhaust aftertreatment in a motor vehicle in which an exhaust gas flow (22) coming from an internal combustion engine (12) operating in a high load range is cooled in a braked exhaust gas turbocharger (20) and The cooled exhaust gas flow (28) coming from the exhaust gas turbocharger (22) is subsequently fed to an exhaust gas catalyst (24), wherein the exhaust gas turbocharger (20) is braked by an electric machine coupled to the exhaust gas turbocharger (20) and operated in generator mode characterized by the fact that the electrical energy generated in the generator operation of the electric machine is supplied to an electric traction machine (14) for the electric drive of the motor vehicle.

The invention relates to a method for controlling an electric traction drive machine of an electric motor vehicle drive, wherein a torque and a rotation speed of the traction drive machine is variably adjusted using a drive converter, in a drive mode of the motor vehicle the traction drive machine is operated as a motor and generates a drive torque by way of which drive wheels of the motor vehicle are driven, in a braking mode of the motor vehicle the traction drive machine is operated as a generator via the drive wheels of the motor vehicle and generates a braking torque by way of which the drive wheels of the motor vehicle are braked; for controlling the rotation speed of the traction drive machine, the current rotation speed of the traction drive machine is detected or calculated and is fed to the drive converter as an actual rotation speed, wherein the actual rotation speed is generated by smoothing the current rotation speed, and in the braking mode the braking torque is adjusted as a function of the actual rotation speed and / or the current vehicle speed. The method according to the invention is characterized in that in the braking mode the braking torque is additionally adjusted as a function of an at least indirectly detected current vehicle deceleration.