Abstract:
A method and an apparatus for controlling output torque of a motor for an electric vehicle in uphill mode, the method comprises: detecting a tilt angle value U, a current vehicle speed value V and an accelerator-pedal travel value Gain of the vehicle, determining whether the vehicle is in uphill mode or not, and if the result is positive, then calculating a minimum torque T1 required for preventing the vehicle from slipping backward under the tilt angle value 0 and the current vehicle speed value V, obtaining a maximum output torque T2, calculating an output torque T of the motor based on T1, T2 and Gain, and controlling the motor to output the calculated output torque T. With the method and apparatus in accordance with the present invention, when the electric vehicle is in uphill mode, even if the accelerator-pedal travel value is zero, the vehicle will not slip backward.
Abstract:
The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency.
Abstract:
An end cover assembly for a battery comprises a cover plate; a scabbard mounted on the cover plate; a connector; and a sealing material. The cover plate comprises an opening. The scabbard comprises an interior channel. The opening is in communication with the channel. The connector is disposed in the interior channel and protrudes from the scabbard. The sealing material is disposed in the interior channel and extends beyond the upper portion of the scabbard and wraps around the outside of the scabbard to form a protective flange.
Abstract:
The present invention provides an apparatus and method for controlling an accelerator for electric vehicles. The method comprises steps of: acquiring an actual accelerator pedal depth value and a current vehicle speed; determining a maximum output torque of motor under the current vehicle speed based on the current vehicle speed; and controlling the output torque of motor in such a way that the growth rate of the output torque higher than that of the actual accelerator pedal depth value at the beginning and then closed to that of the actual accelerator pedal depth value during the actual accelerator pedal depth value growing. The invention makes the output torque grown rapidly within the shallow range of accelerator pedal depth, while makes the output torque grown closed to that of the accelerator pedal depth within the relative deep range of accelerator pedal depth. Thus during the initial stage of acceleration, the vehicle may rapidly output a bigger torque, with an excellent dynamic response, to improve the driving comfort.
Abstract:
A method for electroplating a substrate having an aluminum alloy surface comprises: applying a zinc layer onto the aluminum alloy surface; electroplating a first copper layer onto the zinc layer from an alkaline copper electroplating solution; electroplating a second copper layer onto the first copper layer from an acid copper electroplating solution; electroplating a Cu—Sn alloy layer onto the second copper layer from a Cu—Sn electroplating solution; and electroplating a chromium layer onto the Cu—Sn alloy layer from a trivalent chromium solution. The alkaline copper electroplating solution is substantially free of cyanide ion.
Abstract:
There is disclosed a core for an electrochemical cell that comprises an anode sheet, a cathode sheet, and a separator sheet disposed between the anode sheet and cathode sheet. The anode sheet, cathode sheet, and separator sheet are wound to form a flattened coil structure. The flattened coil structure has opposed flattened sides and opposed arcuate sides. The anode and cathode sheets terminate at the same or different arcuate sides. Further, the separator sheet may terminate at one of the arcuate sides.
Abstract:
An apparatus and method for controlling energy feedback for electric vehicles includes acquiring an accelerator-pedal travel value, a brake-pedal travel value and a current vehicle speed value, and determining whether the brake-pedal travel value is equal to 0%. Feedback torque based on the current vehicle speed value and the brake-pedal travel value with various conditions is then calculated. Mechanical energy generated by the feedback torque T is converted into electric energy and transmitted to battery of the electric vehicle for storing. Accordingly, the endurance mileage of electric vehicle may be effectively prolonged and the utilization efficiency of battery is improved.
Abstract:
The present invention discloses an insulating ring for a lithium ion battery, comprising: a circular ring body; a core rod positioning member configured at a central part of the circular ring body for positioning a core rod of the lithium ion 5 battery; and at least a tab hole configured to be adjacent to the core rod positioning member through which a tab of the core rod is penetratable. Further, a lithium ion battery having the insulating ring is also disclosed. With the present invention, battery safety performance is enhanced greatly.
Abstract:
A hybrid vehicle includes a multi-mode power system. The power system includes a battery, an electrical power input, a first motor/generator, a second motor/generator, and a clutch. A first operating mode is defined by deactivation of the internal combustion engine and the operation of the vehicle by electrical force provided from the battery to the second motor/generator. In a second operating mode, activation of the internal combustion engine generates electrical power by providing rotational force to the first motor/generator. In a third operating mode, engagement of the clutch couples the internal combustion engine and the second motor/generator to provide rotational force to the wheels. In a fourth operating mode, engagement of the clutch couples the internal combustion engine with the second motor/generator, and the first motor/generator further provides rotational force to the wheels.
Abstract:
A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board sealing an open end of the shell; an electrode core disposed inside the shell; an electrode terminal extending through the cover board, the electrode terminal comprising a first end portion connected with the electrode core inside the shell, a second end portion protruding outside the shell, and a middle portion between the first end portion and the second end portion; and an insulating member disposed between the electrode terminal and the cover board for insulating the electrode terminal; wherein each of the first end portion and the second end portion comprises a plurality of flexible conductive members.