Abstract: Disclosed are a security authentication method and an apparatus thereof, and an electronic device.

Abstract: Disclosed is a hoisting carrier vehicle of replaceable batteries. The hoisting carrier vehicle includes a battery box whose cross section is in a shape of inverted concave font. The battery box is mounted by a locking device on the longitudinal beam of the carrier vehicle in a way of saddle. The battery box includes a battery and a battery frame. The battery box of the hoisting carrier vehicle in the application adopts an inverted concave font structure and the middle portion of the inverted concave font is connected to the longitudinal beam, which may effectively lower the center of gravity of the battery box. Secondly, an inclining prevention device is provided to prevent the battery box from inclining forward when braking, thereby to effectively increase the stability of the battery box. In addition, the battery box may be replaced quickly through the quick locking and unlocking of the locking device.

Abstract: A pedal system for a vehicle, where the vehicle is configured for operating in a first vehicle mode for flight operational use and a second vehicle mode for road operational use. The pedal system includes a first pedal arrangement having a first lower pedal part and a first upper pedal part arranged in connection to each other. In the first vehicle mode the first lower pedal part is configured for activating a rudder function of the vehicle, and in the first vehicle mode the first upper pedal part is configured for activating a braking function of the vehicle. In the second vehicle mode the first lower pedal part and the first upper pedal part are configured for cooperating with each other to activate a throttle function of the vehicle.

Abstract: The invention provides a three-way catalytic converter preheating control method and system, a vehicle and a storage medium. The includes when the temperature of an exhaust pipe of the hybrid electric vehicle is lower than a first temperature threshold value, sending a first work instruction; the high-low pressure conversion module outputting a first working voltage according to the first working instruction so as to start preheating of a catalyst in a three-way catalytic converter; when working data of the hybrid electric vehicle meets the switching condition, sending a second working instruction to make the high-low voltage conversion module outputs a second working voltage and stops outputting the first working voltage so as to stop the electric heating. According to the invention, two working modes can be provided, and the power battery can be used for electrically heating the catalyst in advance through the high-low pressure conversion module.

Abstract: This application provides a vehicle DC voltage conversion circuit, including a high voltage battery connected in sequence, a primary-side-bridge module, a resonant module, a transformer module and a secondary-side-output module, wherein the secondary-side-output module includes a first voltage unit outputting a first voltage and a second voltage unit outputting a second voltage. The secondary side winding of the transformer is connected with the first voltage unit and the second voltage unit; The circuit also includes a driver module connected with the original side bridge module. The vehicle DC voltage conversion circuit provided in this application can not only output the first voltage, but also output the second voltage at the same time. It has the advantages of small size, high efficiency, low cost and industrialization, and can be widely used in the vehicle 48 V electrical load, such as 48 V vehicle electric heating system, 48 V vehicle cooling fan, and so on.

Abstract: Disclosed are a battery replacement device for vehicles, a dual-floating hoisting battery replacement station and a battery replacement system. The battery replacement device for vehicles includes a battery module, a first floating structure and a fixing device, the fixing device is used to fix the battery module on the longitudinal beam of the vehicle, the fixing device includes a fixing substrate, the first floating structure is provided between the battery module and the fixing substrate, and the first floating structure is used to alleviate a vibration amplitude of the battery module.

Abstract: Disclosed are a drive synthesis box with multi-motors flexible torque and an electric vehicle. The drive synthesis box with multi-motors flexible torque includes at least two power sources and at least two reduction gear assemblies. Each power source includes driving motors for outputting driving force. The at least two reduction gear assemblies are connected to the at least two power sources in one-to-one correspondence, for transmitting the driving force.

Abstract: Disclosed is a battery replacement vehicle without intermediate transmission shaft, including: a frame, a front axle assembly provided at a front end of the frame and used for driving front wheels of the vehicle; a drive synthesis device including a drive synthesis box integrated with at least two power sources and an axle package assembly for driving rear wheels of the vehicle; and a quick-change battery detachably provided at a bottom of the frame and located between the front axle assembly and the drive synthesis device. In the present disclosure, the power source is moved backwards and infinitely close to the axle in the rear end of the frame, the transmission shaft used for connecting the electric drive assembly and the axle is canceled.

Abstract: Disclosed are a quick battery replacement system and a battery replacement operation method for a vehicle in a long-distance transport path. The system includes: battery replacement stations provided at intervals along the long-distance transport path for replacing quickly and charging a battery of a vehicle whose battery is able to be quickly replaced; a cloud-based battery replacement service platform connected to the battery replacement stations and the vehicle via a network for managing the battery replacement stations and providing services to the vehicle; and the vehicle obtaining distribution information, battery status information and service information of the battery replacement stations through the cloud-based battery replacement service platform.

Abstract: Disclosed are a vehicle power transmission system and a vehicle power system. The vehicle power transmission system includes two motor output shafts, two power output shafts and two transmission mechanisms respectively connected between the two motor output shafts and the two power output shafts correspondingly. Each transmission mechanism includes a motor output gear, a power output gear and a middle transmission gear structure. The motor output gear is arranged on a motor output shaft, and the power output gear is arranged on a power output shaft. The middle transmission gear structure is in transmission connection with the motor output gear and the power output gear. The two power output shafts extend in a first direction, along the first direction, projections of the two motor output shafts are at least partially overlapped and/or projections of the two transmission mechanisms are at least partially overlapped.

Abstract: A three-way catalytic conversion system for purification treatment of an engine exhaust gas and use thereof, including an oxidation segment containing an oxidation catalyst and a three-way conversion segment containing a three-way catalyst, where the oxidation catalyst is used to catalyze an oxidation reaction of reductive components in the engine exhaust gas with oxygen, the oxidation segment is located downstream of an engine, and the three-way conversion segment is located downstream of the oxidation segment. Further, the oxidation catalyst tolerant to ultra-high temperature is provided upstream of the three-way catalyst so that the engine exhaust gas is treated by the oxidation catalyst first and then by the three-way catalyst, which can avoid the TWC being exposed to high temperature caused by burning (CO, HC), reduce its deterioration, and ensure exertion of function of three-way catalytic conversion of the system, improving the purification efficiency of the engine exhaust gas.

Abstract: Disclosed are a back door for a vehicle and a vehicle. The back door for a vehicle includes: a back door trim panel and a rear shielding plate which is provided with a first side edge, a second side edge, a third side edge and a fourth side edge that are sequentially connected; the first side and the third side edge are each connected to the back door trim panel in a non-rotatable manner; and the second side edge is used for being in lap joint with a front shielding plate. The rear shielding plate moves along with the back door when the back door is opened; and when the back door is closed, the rear shielding plate is in lap joint with the front shielding plate, to form a shielding plate of the luggage compartment.