Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group (101); a battery heater (102) for heating the battery group (101); a battery management device (103) configured to control the battery heater (102) to heat the battery group (101) in a running heating mode, to control the battery heater (102) to heat the battery group (101) in a parking mode, to adjust a heating power of the battery heater (102) according to a temperature of the battery group (101) when the battery group (101) is heated, and to control the electric vehicle to run under a limited power when the battery group (101) is heated in the running heating mode; an electric distribution box (104); a motor (105); a motor controller (106) connected with the motor (105) and the electric distribution box (104) respectively; and an isolation inductor (L2).
Abstract:
A remote control system for driving a vehicle, a vehicle intelligent key device and a remote control method for driving a vehicle are provided. The remote control system comprises: a vehicle intelligent key device (102), configured to send a starting signal and control signal; and a vehicle (101), configured to receive the starting signal and the control signal, to start a remote control mode according to the starting signal, and to control a driving state of the vehicle (101) according to the control signal, wherein the vehicle (101) comprises an automatic transmission (207) and an electrical park brake (208), and the automatic transmission (207) is configured to receive the control signal, and to control the electrical park brake (208) to loosen a parking cable of the vehicle (101), to feed back a state of the parking cable and to set a gear of a gearbox to be "Driving" or "Reverse" when the vehicle(101) is in the remote control mode.
Abstract:
A vehicle intelligent key device and a vehicle are provided. The vehicle intelligent key device comprises: a starting key (101); a direction controlling key (102); a wireless communication module (103), configured to communicate with the vehicle wirelessly; and a controlling module (104), connected to the starting key (101), the direction controlling key (102) and the wireless communication module (103) respectively, and configured to control the wireless communication module (103) to send a starting signal or a direction controlling signal to the vehicle when the starting key (101) or the direction controlling key (102) is activated. The vehicle intelligent key device may control a vehicle to run at a low speed. Furthermore, with the vehicle intelligent key device, a user may park or take a vehicle in a narrow space conveniently.
Abstract:
A method of preparing an aluminum alloy resin composite comprises: providing an aluminum alloy substrate having an oxide layer on a surface thereof, and the oxide layer has a nanopore; forming a corrosion pore on an outer surface of the oxide layer by using a corrosion agent, and the corrosion agent is at least one selected from a group consisting of ammonia, ammonium salt, hydrazine, hydrazine derivative, and water-soluble amine compound; and injection molding a resin composition to the surface of the aluminum alloy substrate. An aluminum alloy resin composite is also provided.
Abstract:
A door stopper (100) and a vehicle comprising the same are provided. The door stopper (100) comprises: a body mounting bracket (1), a door mounting bracket (2), a position-limiting arm (3) and a position-limiting assembly (4). The position-limiting arm (3) is rotatably connected to the body mounting bracket (1). The position-limiting assembly (4) is mounted on the door mounting bracket (2) and cooperated with the position-limiting arm (3) to retain the door mounting bracket (2) at a door retaining position. The position-limiting assembly (4) includes a gear (41), an elastic member (44), a roller (42) and a rotating arm (43).
Abstract:
A sealing assembly, a method of preparing the sealing assembly and a battery are provided. The sealing assembly comprises a metal ring (1) having a mounting hole therein; a ceramic ring (2) having a connecting hole therein and disposed in the mounting hole; and a core column (3) disposed in the connecting hole, wherein at least one of an inner circumferential wall surface of the metal ring, an outer circumferential wall surface of the ceramic ring, an inner circumferential wall surface of the ceramic ring and an outer circumferential wall surface of the core column is configured as an inclined surface, and an inclination angle of the inclined surface relative to a vertical plane is about 1 degree to about 45 degrees.
Abstract:
A power battery assembly (1) comprises a battery circuit and a circuit protecting unit (100). The circuit protecting unit (100) is connected in series with the battery unit. The circuit protecting unit (100) comprises a relay (2) and a current sensing unit (3) connected in series with the battery circuit, a switching unit (5) connected with the relay (2) for controlling the switching of the relay (2), and a controller (4) connected with the switching unit (5) and the current sensing unit (3)to control the switching on or switching off the switching unit (5) based on comparison of the current value detected by the current sensing unit (3) and sent to the controller (4) with a first predetermined current value. An electric vehicle is also provided.
Abstract:
A method of joining an amorphous alloy material to a heterogeneous material and a composite formed by the same are provided. The method comprises steps of: placing a pre-formed piece made of one of the amorphous alloy material and the heterogeneous material into a mold; heating the other of the amorphous alloy material and the heterogeneous material to a predetermined temperature, and casting the other of the amorphous alloy material and the heterogeneous material into the mold to form a transition connection part joining the amorphous alloy material to the heterogeneous material and having a fusion welded structure, a microstructure reinforcing connection structure and a composite connection structure; and cooling the amorphous alloy material and the heterogeneous material at a rate higher than a critical cooling rate of the amorphous alloy material to obtain a composite formed by joining the amorphous alloy material to the heterogeneous material by the transition connection part.
Abstract:
A control IC of a switch power supply, connected with a switch of the switch power supply, comprises: a voltage collecting module (112), configured to collect a feedback voltage of an output voltage of the switch power supply; an error amplifying module (113), configured to compare the feedback voltage and a reference voltage and output a error voltage; a time collecting module (114), configured to obtain a degaussing time signal according to the feedback voltage, and a control module (115), configured to collect a peak current feedback signal of the switch, control a frequency and duty ratio of a control signal according to the error voltage (VEA), the degaussing time signal (Tds) and the peak current feedback signal (CS), and control the switch according to the control signal. A switch power supply is also provided.
Abstract:
An electrode terminal, a cover assembly and a battery comprising the cover assembly are provided. The electrode terminal comprises: a terminal pole portion (22); and a pole cap portion (21) formed on an end of the terminal pole portion (22), in which a buffering structure (211) is disposed on a surface of the pole cap portion (21) facing to the terminal pole portion (22).