Abstract: The invention relates to the technical field of battery swapping for electric vehicles. A control method of a smart battery swapping station includes: acquiring vehicle information of a vehicle requiring battery swapping, and retrieving a model type of a corresponding battery pack locking and unlocking hole and specific parameters from a database; when the vehicle arrives at a battery swapping operation platform, capturing an image of a vehicle chassis to determine an initial pose of the vehicle chassis; processing the initial pose to extract center coordinates of the locking and unlocking hole and a normal vector direction of the locking and unlocking hole; comparing the center coordinates of the locking and unlocking hole and the normal vector direction of the locking and unlocking hole with the retrieved model type of battery pack locking and unlocking hole and specific parameters in the database to determine if the information is consistent.

Abstract: The method includes: receiving collected electrical signal information of all cells in each traction battery; performing self-discharge observation and calculating a self-discharge rate based on a cell voltage in electrical signal information of each cell after depolarization is completed, to determine whether there is an internal short circuit in a traction battery where the cell corresponding to the self-discharge rate is located; and triggering alarm handling for the internal short circuit in the traction battery based on a back-fed result that there is an internal short circuit in the traction battery. In this way, a problem of how to monitor a micro-internal short circuit in a traction battery in a good static working condition with accuracy and efficiency while taking operation into consideration is solved, thereby improving accuracy and efficiency of monitoring an internal short circuit in the traction battery while taking operation into account.

Abstract: An insulation monitoring method and system for a traction battery and an apparatus are proposed to solve the problem of how to accurately predict a risk of insulation deterioration of the traction battery before the insulation deterioration occurs on the traction battery, so as to provide an early warning about failures in the traction battery. In this method, data statistics on a large amount of insulation resistance values within a long period of time are collected, and whether the traction battery has the risk of insulation deterioration is determined by analysis based on a data statistical result; and if the traction battery has the risk of insulation deterioration, alarm information is output. In this method, based on data statistical analysis performed on the large amount of insulation resistance values within a long period of time, insulation deterioration can be predicted before the insulation deterioration occurs on the traction battery.

Abstract: Provided are a circumferential locking mechanism, a battery securing device comprising same, a traction battery, and a vehicle. The circumferential locking mechanism comprises: a first component comprising an inner ring gear (10), the inner ring gear (10) having inner straight teeth (11) distributed along an inner circumference; a second component comprising an outer ring gear (20) and a tightening sleeve (30), the outer ring gear (20) having outer straight teeth (21) distributed along an outer circumference, the tightening sleeve (30) being fixed inside the outer ring gear (20) in an embedded manner, wherein the inner straight teeth (11) are adapted to engage with the outer straight teeth (21).

Abstract: Disclosed are a mobile Internet-based integrated vehicle energy replenishment system and method, and a storage medium.

Abstract: The invention belongs to the field of new energy vehicles, and particularly provides a locking and unlocking fixture capable of adaptive position adjustment. The invention aims to solve the problems of existing automated unlocking apparatuses for traction batteries having high requirements for machining precision, and the resulting machining difficulties.

Abstract: The present application relates to an electric car and an active discharging module, a driving apparatus, and an electric drive system thereof. said active discharging module comprises a discharging subcircuit, which is connected in parallel with the DC-link capacitor of the electric car, and a first switch, which is connected to an actuating apparatus of the electric car and the discharging subcircuit respectively. The discharging subcircuit comprises a discharging resistor and a power switching transistor which are connected in series, wherein the first switch may turn off the power switching transistor after the actuating apparatus is turned on, and turn on the power switching transistor after the actuating apparatus is turned off. Said driving apparatus comprises any one of the above active discharging modules. Said electric drive system comprises any one of the above driving apparatuses. Said electric car comprises any one of the above electric drive system.

Abstract: A modularised charging vehicle, aiming at solving the problem of repeated development caused by the fact that an existing charging vehicle needs to configure separate charging piles for various specifications of electric automobiles. A charging vehicle comprises a main controller and at least two charging and discharging modules, wherein the charging and discharging modules comprise a charging input end, a battery pack, a DC/DC converter and a charging output end. The battery pack is connected to the charging input end and the DC/DC converter. The DC/DC converter is connected to the charging output end. The charging and discharging modules are connected in parallel to each other, and are combined into one path for inputting and are combined into one path for outputting. The controller can control the charging and discharging modules to store and release electric energy, so as to achieve an input or output function of different power.

Abstract: A system upgrade assessment method based on system parameter correlation coefficients is provided. The problem that the existing system upgrade assessment method cannot accurately assess an upgraded system is solved. For such a purpose, the system upgrade assessment method comprises the following steps: acquiring first data for a plurality of parameters before system upgrade (S110); acquiring second data for the plurality of parameters after the system upgrade (S120); calculating first correlation coefficients of the first data and second correlation coefficients of the second data (S130); calculating third correlation coefficients between the first data and the corresponding second data (S140); and determining, based on the magnitudes of the first correlation coefficients, the second correlation coefficients and the third correlation coefficients, whether the system upgrade succeeds (S150).

Abstract: The present application relates to heat management and control of new energy vehicle, particularly to an active cooling power calibrating method and system for energy storing unit. The application aims at resolving the problem that the existing active cooling power calibrating experiment for energy storing unit executed in a wind tunnel cabin, is inefficient and costly. The active cooling power calibrating method for energy storing unit of the present application mainly comprises the steps of: improving inlet temperature of the energy storing unit to a target temperature with a heating device; cooling the energy storing unit with a cooling system in a way of maintaining the inlet temperature at the target temperature; calibrating parameters of the cooling system when the inlet temperature is kept stable at the target temperature.

Abstract: The present application relates to the field of swapping batteries of electric vehicles, particularly to a quick locking-unlocking assembly. The present application aims at solving the problem in the prior art that each locking mechanism of current electric vehicle power battery has too many parts and sophisticated structure, occupying larger space and thus increasing cost in manufacturing the electric vehicles. The quick locking-unlocking assembly of the application includes: a first sliding block and a second sliding block slidably connected to the electric vehicle body, a retaining sheath fixed to the outer shell of the power battery, a first spring and a second spring for forcing the first and second sliding blocks to move closer to each other, a bolt capable of extending through the retaining sheath and the first and second sliding blocks, and a third spring forcing the bolt away from the vehicle body.

Abstract: The present invention relates to a mobile charging device, a mobile charging system and a mobile charging method. Said mobile charging system (1000) comprises an order system (100), a mobile charging device (200) and a charged object (300). Said mobile charging device (200) comprises a plurality of energy storage units (2021˜202n) and a power controller (201) connected to said plurality of energy storage units (2021˜202n) via an internal communication bus. In addition, said mobile charging device (200) further comprises a voltage transformer (2031˜203n) and/or a switch array (204).

Abstract: The application belongs to the technical field of automobile plated part, and in particular relates to an automobile, an automobile plated part, an automobile plated part mold and a manufacturing method thereof. The method for manufacturing automobile plated part mold comprises the steps of: establishing a first simulation model of the automobile plated part mold based on a set shape of the substrate of the automobile plated part; using the first simulation model to simulate injection process of the substrate to obtain a first simulation substrate; performing at least one modification processing on the first simulation model, so that a second simulation model thus obtained satisfies the following requirements: using the second simulation model to simulate the injection process of the substrate to obtain a second simulation substrate conforming to the set shape; manufacturing the automobile plated mold according to the second simulation model.

Abstract: The present application relates to a battery charging method. The method comprises the steps of: in accordance to the current's adverse effect on battery lifespan, classifying the charging current of a battery into a first type of charging current and a second type of charging current; setting a proportion limit on the first type of charging current and a proportion limit on the second type of charging current; obtaining the historical charging current information of the battery; determining the historical accumulative proportion of the second type of charging current in accordance to the historical charging current information; in accordance to the proportion limits and the historical accumulative proportion, determining the type of battery charging current which is present available. By taking into account different charging currents' adverse effect on battery lifespan, the charging method solves the problem of excessive charging current's adverse effect on battery lifespan.