Shulou(Shulou.com)11/24 Report--

According to the news on October 2, rumors about Xiaomi cars are flying everywhere recently. Media exposed that "Xiaomi founder Lei Jun revealed that Xiaomi's first engineering vehicle has been officially offline" news, while there are a large number of so-called "Xiaomi engineering vehicle" video screen network.

In March this year, Xiaomi Group disclosed in its annual performance report that Xiaomi cars are not expected to be officially mass produced until the first half of 2024, and the progress of Xiaomi car construction has been affecting the nerves of the industry.

From the initial frequent "rumors" to build cars, in March 2021, Lei Jun officially announced that Xiaomi Group had set up a wholly-owned subsidiary to take charge of the smart electric vehicle business, although in response to online rumors that Xiaomi engineering vehicles had gone offline, Xiaomi officials have not yet given a definite response, and the mysterious veil of Xiaomi's debut car has yet to be uncovered.

Recently, however, Xiaomi has frequently exposed patents in areas such as batteries and self-driving. Xiaomi car enthusiasts may be able to get a glimpse of the future of Xiaomi cars from these patents.

In terms of battery, charging and other capabilities, Xiaomi Automotive Technology Co., Ltd. in the battery "battery pack and vehicle" patent granted.

The battery package comprises a battery box and at least one cell; the battery box is provided with a holding cavity; each cell in the at least one cell respectively includes a cell shell and a cell pressure relief valve; the core pressure relief valve is located on the first end face of the cell shell; the core shell is located in the receiving cavity, and the first end face is close to the bottom inner wall of the receiving cavity, and an exhaust channel is formed between the bottom inner wall of the receiving cavity. In some embodiments, the second end face of the core housing is connected with the top inner wall of the holding cavity; the second end face is opposite to the first end face.

In this new type of battery package, after the core is out of control, the solid material and the high-temperature electrolyte are ejected toward the inner wall of the bottom along the gravity direction, the high-temperature gas is discharged along the exhaust channel, and the solid material and electrolyte are deposited under the action of gravity to avoid contact with conductive structures or other cells.

▲ A patent for a battery package that avoids contact with conductive structures or other cells after thermal runaway. At the same time, Xiaomi's patent for "thermal management system and vehicle" is published. The thermal management system includes a compressor, an indoor heat exchanger, a first expansion valve, a gas-liquid separator, and a battery heat exchange module. The outlet of the gas-liquid separator is connected with the inlet of the compressor, the outlet of the compressor is connected with the inlet of the indoor heat exchanger and the inlet of the first expansion valve, the outlet of the indoor heat exchanger is connected with the inlet of the first expansion valve and the heat transfer inlet of the battery heat exchange assembly, and the heat transfer outlet of the first expansion valve and the battery heat exchange assembly is connected with the inlet of the gas-liquid separator respectively. The battery heat exchanger module is used for heat exchange with the power battery, and the indoor heat exchanger can be used to heat the interior of the vehicle.

The thermal management system expands the operating temperature range so that it can still operate normally below-10 °C without the need for additional PTC heaters for heating, thus reducing the energy consumption of new energy vehicles in winter.

Patent for ▲ thermal management system to reduce the energy consumption of new energy vehicles in winter. In addition, the patent for "charging equipment, method, device, vehicle, electronic equipment and storage medium" applied for by Xiaomi Automobile has been granted. The charging device includes a controller, a control switch, a rechargeable battery, a first interface, a second interface and a third interface, the first interface is used for connecting with the charging interface of the vehicle to be charged, the second interface and the third interface are used for connecting with the preset charging device, and the controller is used for communicating the first end of the control switch with the second end of the control switch, or the first end of the control switch is connected with the third end of the control switch. Charge the vehicle to be charged with the preset charging equipment.

The charging device in the disclosure can actively charge the vehicle to be charged, which can decouple the charging process from the user behavior without user operation, and the charging device can charge the vehicle to be charged by connecting with the preset charging device, which can realize the fast charging of the vehicle and the high-voltage platform charging of the vehicle, thus improving the intelligence and convenience of charging.

The patent that ▲ can take the initiative to charge a vehicle to be recharged is in the field of self-driving, and Xiaomi has a number of patents exposed.

Xiaomi recently applied for a patent to "prevent collisions with roadside open-door vehicles".

The patent relates to a vehicle control method, a device, a vehicle, a storage medium and a chip, which include collecting environmental data within a preset range on the driving direction of the vehicle, generating original image data and radar image data, identifying the original image data and radar image data, determining the target vehicle image within the preset range, and determining the door opening angle of the target vehicle in the target vehicle image. When the risk of collision between the first vehicle and the target vehicle is determined through the door opening angle and the vehicle driving parameters of the first vehicle, the first vehicle is controlled for emergency avoidance. Thus, the risk of collision between the self-driving vehicle and the door of the vehicle parked on the side of the road is avoided, the safety factor of the self-driving vehicle is improved, and the occurrence of road accidents is reduced.

▲ 's patent for "preventing collisions with roadside open-door vehicles" also has a patent for "predicting that vehicles fall into the water".

The patent relates to a vehicle falling into the water detection method, a vehicle, a computer-readable storage medium and a chip, including obtaining the sensor detection information output by the inertial measurement unit IMU and multiple frames of images captured by the camera, determining the vehicle position and posture according to the sensor detection information, the internal parameters of the camera and the feature points of the multi-frame images, and determining the distance between the vehicle and the water surface according to the vehicle position and posture. When the distance between the vehicle and the water surface is less than the predetermined threshold, it is determined that the vehicle is about to fall into the water. Before the vehicle falls into the water, it can predict the vehicle falling into the water and send out the signal that the vehicle is about to fall into the water, which improves the safety of the vehicle, reduces the installation of liquid level sensor and its maintenance, and reduces the vehicle cost.

▲ can predict the vehicle fell into the water patent, in addition, there are "more accurate identification of traffic lights", "through the signal light state control speed" two patents, Xiaomi car is also being applied for.

▲ patents for speed control through signal status Xiaomi cars are making breakthroughs and active reserves in new energy and self-driving technologies, judging from the patents that have been granted or are being applied for. In July 2021, Xiaomi auto self-driving department first recruited 500 self-driving technical elites to develop L4 intelligent driving ability. A year later, in August this year, Xiaomi revealed that 3.3 billion yuan had been invested in the first phase of planning and research and development in the field of self-driving.

Of course, there is still a long way to go for a technology patent from theory to application. Through these patents, you can only imagine what Xiaomi cars might look like in the future.

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