The latest technology patents in the new energy vehicle industry! NIO and SAIC are included.

Guangqi Ai’an has applied for a patent for the battery management system, which can facilitate efficient battery swapping and enhance the user’s experience during the swapping process.

Patent Number: CN117621909A. This application provides a method, device, electronic equipment, and storage medium for the battery management system’s battery swapping control. The method includes: obtaining the battery swapping connection status of the battery management system; obtaining a working mode control message based on the swapping connection status; controlling the battery management system’s swapping according to the working mode control message to fulfill the swapping demand; and ending the swapping based on the swapping demand. Implementing this example can achieve efficient battery swapping, mitigate safety risks during the swapping process, reduce energy waste, and avoid battery degradation, effectively protecting the battery and enhancing the user’s swapping experience.

Source: Research and Development Intelligence Database Eureka

Great Wall Motors has applied for a patent for vehicle charging, aiming to enhance user experience.

Patent Number: CN117621895A. This application discloses a charging method, device, electronic equipment, and vehicle. Upon receiving a charging request from a vehicle, the method involves obtaining the charging parameters of the vehicle and the charging parameters of the vehicle to be charged, retrieving a set of charging strategies from the database, and displaying them to the user via a preset interface. When receiving the user’s target charging strategy, the method charges the vehicle based on the selected strategy, taking into account the charging parameters of both the target and the vehicle to be charged. By combining the charging parameters of multiple vehicles to output the optimal charging strategy for user selection, the method maximizes user satisfaction with charging needs through rational scheduling of charging periods, thereby improving user experience.

Source: Research and Development Intelligence Database Eureka

Hozon Auto has applied for a patent for emissions control after cold starting an extender to improve the efficiency of power output after vehicle cold starts.

Patent Number: CN117622099A. The method, system, device, and medium for emissions control after cold starting an extender include: waking up the hybrid control unit and the extender system; obtaining a startup trigger signal and generating an engine startup command, which is sent to the extender system; starting emission control restrictions based on the engine water temperature and the starting ignition indicator value of the extender system; determining the current power-on cycle status of the extender based on the engine water temperature and the starting ignition indicator value of the extender system; and lifting the power limit of the extender if the starting ignition indicator value of the extender system is at a predetermined value. Otherwise, if the engine water temperature is not above a predetermined threshold T1, and the power-on cycle status is in the first startup state, the power limit of the extender is executed. The invention provides a method, system, device, and medium for emissions control, which improves the efficiency of power output after vehicle cold starts.

Source: Research and Development Intelligence Database Eureka

SAIC Group has applied for a patent for a battery system assembly and a vehicle to achieve weight reduction and increase system energy density.

Patent Number: CN117638363A. The invention discloses a battery system assembly and a vehicle. The battery system assembly includes one or more groups of battery packs stacked from top to bottom. Each group of battery packs includes a bottom shell with an open top, adjacent bottom shells are sealed and connected, and the topmost battery pack includes a top cover, which is sealed and connected to the open end of the topmost bottom shell. It also includes a battery rack connected below the bottom battery pack, and both the top cover and the battery rack are provided with fixing parts for connecting to the vehicle body. In the battery system assembly of the invention, the battery pack has a load-bearing outer shell structure, allowing the traditional battery frame to be eliminated, and only the bottom battery rack remains as the support structure, achieving weight reduction and increasing system energy density. The bottom shell also serves as the cell support structure and sealing structure, the groups of battery packs are connected as a whole, omitting installation gaps, which can improve the grouping efficiency of the battery system assembly and increase the cell height, thus increasing system energy.

Source: Research and Development Intelligence Database Eureka

JAC Motors has applied for a patent for an oil-cooled electric oil pump to build a circulating liquid cooling system.

Patent Number: CN117627916A. The invention discloses an oil-cooled electric oil pump, including a motor assembly, a controller assembly, and a pump assembly. The motor assembly includes a motor housing with a motor cavity, a support portion is provided inside the motor housing, and a drive shaft is provided through the support portion. The drive shaft is rotationally connected to the support portion, with one end extending into the motor cavity. The internal part of the drive shaft is provided with a shaft oil passage communicating with the motor cavity. The controller assembly is set at one end of the motor housing near the motor cavity. The pump assembly includes a pump cover, which is connected to one end of the motor housing away from the controller assembly. The pump cover is provided with a suction cavity, which communicates with the shaft oil passage. The pump cover is provided with an oil outlet, and an oil pump rotor cavity is formed between the pump cover and the support portion. The oil pump rotor cavity is in communication with the suction cavity, the oil outlet, and the motor cavity. An oil pump outer rotor and an oil pump inner rotor are provided inside the oil pump rotor cavity. The oil pump inner rotor is sleeved on the drive shaft, forming a circulating liquid cooling system.

Source: Research and Development Intelligence Database Eureka

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