20results about "Electric vehicles" patented technology

The invention relates to a construction vehicle (1).A battery module (40; 240; 340) is provided to supply electricity to at least one electric motor (80, 87) of the construction vehicle (1).A fastening structure (70; 270) of the battery module (40; 240; 340) is designed to be removably fastened to a first longitudinal member (10-1), in a fastening position located beneath the cab (29) in the vertical direction (C-C) of the construction vehicle (1), and the battery module (40; 240; 340) in the fastening position is accessible from an outer side of the construction vehicle (1) so that said module can be brought into or out of the fastening position from the outer side of the construction vehicle (1).

Support (100) intended to be fixed to a component (400) of a motor vehicle carrying a pedestrian alert sound generator (300), a vacuum pump (200) and a vacuum pump relay (500). Figure for abbreviation: Figure 2

A transportation device is disclosed. One aspect includes a rear assembly that further includes a rear frame, and a first rear wheel and a second rear wheel mounted to the rear frame. The rear assembly may also include a first electric motor and a second electric motor mechanically connected to the first rear wheel and the second rear wheel respectively, and an electrical power source comprising a battery, configured to power the first electric motor and the second electric motor. The transportation device may also include a front assembly that includes a saddle and a front wheel connected to the saddle via a wheel hub and a fork. An aspect includes an elastomeric torsional element connecting the front assembly and the rear assembly.

[Problem] To provide an electric work machine including a battery unit as large as possible in the limited space in a machine body while efficiently cooling a device in the machine body, achieving a higher battery capacity. [Solution] A hydraulic excavator as an electric work machine includes, in a machine body, a battery unit that stores electric power, an electric motor that is driven by the electric power supplied from the battery unit, a hydraulic pump that is driven by the electric motor, an oil cooler that cools hydraulic oil discharged from the hydraulic pump, and a fan that draws air into the machine body. The machine body has a first opening and a second opening, and the first opening is provided on a first lateral side of the machine body, and the second opening is provided on a second lateral side of the machine body. The fan is placed to face the first opening in the machine body, and the oil cooler is placed to face the second opening in the machine body.

A device includes: a motor, an inverter configured to drive the motor, a gear device connected downstream of the motor, and a drive shaft configured to transmit, to a drive wheel, power of the motor transmitted from the gear device, and the drive shaft includes a portion covered with a noise reducing material.

Disclosed are exemplary embodiments of electric wheelbarrows. In exemplary embodiments, the electric wheelbarrow's first and second wheels are rotatably coupled to respective first and second end portions of a fixed, static, or non-rotating axle. First and second electric brushless geared hub motors are respectively coupled to the first and second wheels. The first and second electric brushless geared hub motors are configured to be operable for rotating / driving the respective first and second wheels, respectively, when electrical power is supplied to the first and second electric brushless geared hub motors.

A battery compartment (100), a battery compartment assembly and an electric scooter are provided. The battery compartment is used for an electric scooter, and includes a compartment body (1) and a limiting flange (2). The electric scooter includes a frame (5) with an opening (501), and the opening (501) runs through the frame (5) in an up-down direction. The compartment body (1) is configured to penetrate through the opening (501), and the limiting flange (2) is arranged to an outer side wall of the compartment body (1) and configured to abut against the frame (5) to prevent the compartment body (1) from falling out of the opening (501) downwards.

Even when the load acting on the travel mechanism changes due to the attachment of heavy objects, the vehicle will still provide appropriate support for travel and / or operation. [Solution] The work vehicle comprises a vehicle body, a vehicle body that supports the vehicle body so that it can move, a coupling device that can connect heavy objects to the vehicle body, a storage device that can store information, a parameter definition unit that defines driving parameters that show the relationship between the rotation of the vehicle body and the distance traveled by the vehicle body based on the actual driving state of the vehicle body, and stores the driving parameters and information on the attachment of heavy objects to the coupling device in association with the storage device, and a support device that provides support for driving and / or work based on the driving parameters stored in the storage device.

A method for preparing an order, implemented using a first and a second set of self-guided trolleys (17,18), comprises: - a first step of transporting a collection container (24) to a first predetermined parking location (25) facing the position of an operator or a robotic arm (26) at the order preparation station; a step of transporting at least one storage container containing an item of said order to a second predetermined parking location (23) adjacent to said first location; a step of picking at least one item of said order from a storage container directly above said second location (23) and placing said item in said collection container directly above said first location; a second step of transporting said collection container in which the item(s) of said order have been placed to the temporary storage area.Figure from the summary: Figure 2.

A method (100 fig 2) comprises converting a sterndrive boat 1 powered by an internal combustion engine (7 fig 1B) located inside the boat 1 and having an outdrive unit 15 including a direction changin

A method for controlling operation of a rotating electric machine includes receiving, via a bandwidth partitioned harmonic compensation regulator (HCR) of a controller, an instruction torque and a rotational speed of the machine, and using the instruction torque and the rotational speed to calculate dq harmonic compensation currents and voltages for one or more predetermined harmonic orders via the HCR in response to an enable condition. The harmonic compensation currents and voltages cancel torque and current fluctuations in the one or more predetermined harmonic orders. The method can include injecting acoustic tones at the predetermined harmonic orders. The method also includes adding the dq harmonic compensation currents and voltages to dq current and voltage instructions, respectively, to produce adjusted dq current and voltage instructions. The adjusted dq current and voltage instructions are then used to control the machine.

A battery cell assembly related to one embodiment of the present invention may comprise: a plurality of battery cells; the shell comprises an accommodating part for accommodating the plurality of battery cells; and at least one or more fixing members provided to cover at least a partial region of an outer surface of each of the plurality of battery cells to fix the battery cells within the accommodating portion, and having a battery cell exposure hole through which the battery cells are exposed, a part of the battery cell is exposed to the outside.

The invention relates to high frequency, high output impedance amplifiers for EMI active filter applications. A high frequency amplifier for an active EMI filter has a symmetric class B emitter follower output stage driven by a driver stage, with a sense output resistor. In a global voltage feedback loop, the two terminals of the sense resistor are connected through two voltage dividers of the same ratio to the non-inverting input, the inverting input of the driver stage, respectively. The amplifier is configured to provide a high output impedance from 10 kHz and up to 100 MHz, a peak to peak output current of 2-10 Ampere and a low quiescent current of less than 400 mA. The invention includes an EMI filter with such a high frequency current source, for example in a current sense current injection feedback configuration.

An electronic circuit board (21) for a motor vehicle (1) includes a transducer (17) configured to detect an indicative quantity of a vibration of a base body (41) of the motor vehicle (1) and to generate a corresponding signal, a plurality of mounting points for attaching the electronic circuit board (21) to the base body (41), the mounting points being arranged to surround a region (25) of the electronic circuit board (21), characterized in that the transducer (17) is arranged corresponding to said region (25). Main Figure: 5 [Fig. 5]

Disclosed are a system and method for managing a shared personal mobility device (SPM) capable of acquiring accurate location information of the SPM. The system for managing the SPM may include a dock configured to store SPMs, and an SPM management server configured to receive, from the dock and using an LPWA protocol, state information associated with the doc. The state information may include coordinates of the dock. The SPM management server may be further configured to receive location information associated with a returned SPM, and update, based on the coordinates of the dock, the location information associated with the returned SPM.

Disclosed is a fire prevention and control system for a rechargeable battery cabin of a ship, including a detection apparatus, a fire suppression apparatus, and a control apparatus. The detection apparatus includes a first detection apparatus and a second detection apparatus, the control apparatus includes a first control apparatus and a second control apparatus, the first control apparatus is connected to the first detection apparatus, the second control apparatus is connected to the second detection apparatus, and the first control apparatus and / or the second control apparatus is configured to control whether the fire suppression apparatus releases a fire extinguishing agent. Beneficial effects: This application provides a fire prevention and control system for a rechargeable battery cabin of a ship. Detection apparatuses and control apparatuses are redundantly disposed, to provide high reliability of detection and high reliability of control, and implement a dual-path monitoring-control process of detection apparatus-control apparatus-fire suppression apparatus.

Inrush current limiting circuit (2, 3), comprising: a first connecting line (L1) that connects a positive terminal of a battery (B) and an electrical consumer; a second connecting cable (L2) that connects a negative terminal of the battery (B) and the electrical consumer; a switch (SW) which is provided in a first line of the first and second connection lines (L1,L2); a voltage sensor (13); and a current limiting circuit (10) provided in a second line of the first and second connecting lines (L1,L2); wherein the current limiting circuit (10) comprises: a current sensor (11) provided in the second line; and a switching element (Q) provided in the second line; wherein the voltage sensor (13) detects a voltage difference between the ends of the switching element (Q); an operational amplifier (OP) which receives a signal at an inverting input terminal in accordance with a detection value obtained by the current sensor (11) and receives a current command value at a non-inverting input terminal; wherein the switching element (Q) provided in the second line receives an output signal from the operational amplifier (OP) at a control terminal and performs a switching operation in accordance with the output signal; characterized by the fact that the inrush current limiting circuit (2, 3) further comprises: a capacitor (C) with a first electrode connected to the first terminal (L1) and a second electrode connected to the second terminal (L2); During a period from when the switch (SW) is turned on until the charging of the capacitor (C) is completed, the current command value is set to a value, which is smaller than a value corresponding to the smallest of the rated currents of components included in the inrush current limiting circuit (2, 3) and is set to a value that is smaller than a maximum current value in a safe operating range of the switching element (Q); the current command value is set to a value to put the switching element (Q) into a fully switched-on state when the charging of the capacitor (C) is complete after the switch (SW) is switched on and a period of occurrence of an inrush current has ended; a product of the value of a current flowing through the switching element (Q) and the voltage difference between the ends of the switching element (Q) is set to a constant value; and the inrush current limiting circuit (2, 3) further comprises: an operator (14) which, based on a signal from the voltage sensor (13) and a signal from the current sensor (11), calculates the current command value to make the product of the value of the current flowing through the switching element (Q) and the voltage difference between the ends of the switching element (Q) constant, and outputs the calculated current command value to the non-inverting input terminal of the operational amplifier (OP).

A system comprising a configurable grid connector connecting a mining and / or construction machine to an electric power source and a grid connector controller controlling the configurable grid connector is provided. The grid connector controller configures the configurable grid connector to provide electrical power to the mining and / or construction machine such that one or more criteria is fulfilled.

An alignment assist assembly for a work machine includes a camera supported to a lateral side of the work machine and at an elevation above at least one power rail, the camera being oriented toward the haul route and configured to capture an image field and generate an image signal indicative of the image field. A display is operably connected to the camera and disposed in the cab, the display configured to generate a displayed image based on the image signal from the camera. The display further is configured to display an alignment overlay indicative of a range of distances between the frame and the at least one power rail that permit the current collector to engage the surface of the at least one power rail.