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

Thanks to CTOnews.com netizens for the delivery of the clues saved by kindly asking! CTOnews.com August 21, on today's Naju Automotive Technology Day, Naha released a new "Hao Zhi Strategy 2.0", which unveiled five technologies and products at one time, including Haozhi SuperCalculator, Haozhi skateboard chassis, Haozhi extended range and Haozhi Thermal Control, covering pure electricity and extended range routes, covering all technologies from wisdom module, smart driving to three electric fields.

In addition, Nashi Automobile also announced that these technologies will be open to the whole industry. According to Nahu Automobile, in fact, overseas car companies have been communicating with them all the time, and the industry speculates that Nahu Automobile will also cooperate with foreign car companies or new forces.

The new Haozhi skateboard chassis technology uses a new platform, using a new generation of EEI central electrical architecture, CTC battery system, full-line control chassis, supporting 400V and 800V dual platforms, zero acceleration only 3.5s, 100km power consumption 11kWh, charging 15 minutes to increase 500km, the maximum speed of 200km Zacheng CLTC exceeds 1000km.

Skateboard chassis technology also supports integrated die casting + energy tank, increases space by 14%, reduces the number of parts and solder joints, has the characteristics of high integration and high precision, reduces weight by 16%, reduces R & D cycle by 30%, greatly improves production efficiency, adapts to XPC supercomputing platform, has 1000 TOPS computing power, and has L4 and L5 intelligent driving upgrade capabilities.

The platform realizes the decoupling of the upper and lower car bodies, and is suitable for cars, SUV, MPV, station wagons, pick-up trucks and other vehicles. It also has a "non-thermal spread ability cabin system", which claims that the battery is 0 intrusive, no damage in the cabin, IP68+ (continuous 72 hours), and supports up to 800V / 4C fast charging. The 200km can be recharged in five minutes.

In addition, Naxi Automobile has also released the 180kW electric drive system and 250kW high-voltage SiC electric drive system, which supports high-strength spokes, has a new SVPWM algorithm, reduces electrical corrosion, improves NVH performance, and the first 180kW / 200kW product is scheduled for mass production in October this year.

The two electric drive products have a three-in-one structure, which realizes the high-speed integration of motor, reducer and controller. The performance achievements brought by high integration are as follows: torque of 4850 N ·m, zero acceleration of single motor < 6S, maximum speed of motor up to 20,000 rpm, interior noise less than 38 decibels, and so on.

CTOnews.com found that the Haozhi supercomputing platform launched by Naha Automobile mainly consists of three parts, namely, integrated gateway domain control, integrated central domain control, and central supercomputing platform. Among them, the converged gateway domain control and the integrated central domain control will follow the new car SOP in May 2024.

According to reports, Haozhi's central brain uses an AI processor with over 1000 TOPS computing power, a front cabin and three regional controllers (the regional controller uses Infineon Aurix-TC3xx series multi-core high security processors) to support shared storage at or above the 1TB level. Nezha said that the conceptual design and demonstration of the product have been completed and will be delivered in 2025.

To put it simply, the integrated central domain control technology can connect all kinds of sensors and actuators distributed in different areas such as the front cabin, the left side and the right side of the vehicle (including 1 S32G3 chip in the brain and 2 Orin-X chips). Finally, the data are collected to the central brain for centralized scheduling computing power for processing (with 508 TOPS computing power and 400 + KDMIPS), which can realize the functions of high-speed navigation, memory parking, city navigation and so on. And users can also customize and design the functions of the car according to their own car habits.

On the other hand, the converged gateway domain control has rich interface expansion performance, including 14-way CAN and 9-way Ethernet, which can flexibly adapt to the whole vehicle, and can also realize the functions of intelligent gateway, power domain control, thermal management, body control and so on.

It is worth mentioning that under this central-regional architecture, Nahu says that the vehicle wiring harness can be reduced by 1.5 km, the weight can be reduced by 10 kg, and the mileage can be increased by 5%. The most important thing is that the conceptual design and demonstration of the scheme have been completed and will be delivered in 2025.

In addition, this central computing architecture will also be added to the AI model to achieve high-level autopilot. In addition, the staff said that in fact, Nezha S is now preparing to connect to the cloud large model, and there will also be a tailored local large model on the car side.

Nezha also emphasizes the new heat pump air conditioning technology, which will improve performance from three aspects: low energy consumption, wide temperature range and high integration.

1. Low energy consumption. The cooling and heating power consumption of the rear heat pump air conditioner is less than 800 watts, and the power consumption is only 0.8 degrees per hour. Although in winter, heat pumps can also increase battery life by 20%.

two。 Wide temperature range. The operating temperature of the system is as low as minus 35 ℃.

3. High integration. The application of dual-source (air source, waste heat source generated by the three-electricity system) cryogenic heat pump, multi-system strong coupling architecture and integrated module. This reduces the number of system lines by 20% and the weight by 20%.

According to reports, there are four bright spots in the technology of Haoji extended range of Nashi Automobile:

High efficiency: using high-efficiency extended range special Atkinson engine, the high efficiency area of generator and engine overlap 93%.

High NVH performance: generator rotor is directly connected to crankshaft, no gear transmission noise

High intelligence: energy management can make intelligent prediction, and power generation strategy control is based on human-vehicle-road.

High integration: generator and engine directly connected, flywheel rotor integrated design, generator and controller integration.

Naha Automobile revealed that at present, the Haozhi extended range system has experienced 1 million km vehicle verification,-35 °C ~ 45 °C low temperature, high temperature verification and 4000m altitude environment test.

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