Last week, at the Changan Automobile Global Partnership Conference, Changan Group officially announced a new digital pure electric brand - Changan Deep Blue, and on April 21, it launched the brand's special platform for electric drive in the form of multi-energy supplementation - Deep Blue All-Electric Digital Platform EPA1. As a new sub-brand, Changan Deep Blue is an important achievement of Changan Automobile's intelligent and new energy strategy, and it is also a commitment to consumers who pursue quality experience and attach importance to scientific and technological life.
For this deep blue brand, as well as the deep blue all-electric digital platform EPA1, I think everyone is relatively unfamiliar. Why does Changan want to launch a new brand, and what is the mystery of the multi-energy supplement form of this all-electric digital platform? Che Yun Fungus next interprets it for you.
Changan Deep Blue, the brand symbolizes exploration, life, technology and the future, and is committed to applying tomorrow's technology to today's life, bringing consumers a diversified experience beyond this era. Changan Deep Blue will provide four major brand values for new energy users of Generation Z:
- Innovative reconstruction: through forward-looking innovative product design and industry-leading platform architecture, reconstruct users' cognition and imagination of future travel;
- Internet of Everything: Build a digital ecosystem of Skynet Interconnection to achieve unlimited expansion of all digital scenarios;
- Experience at will: Provide smart and interesting functional scenes and personalized customized wisdom services to help users freely broaden the boundaries of experience;
- Low-carbon life: Adhering to the concept of green and low-carbon sustainable development, providing efficient travel solutions and promoting sustainable coexistence between man and nature.
Under the deep blue brand, Changan Group has spent five years to create a special platform for electric drives in the form of multi-energy replenishment, which provides a hard-core foundation for the construction of Changan's future new energy products. It has the ultimate power system driven electrical efficiency; after the drive as a gene, taking into account the high performance of four-wheel drive; high intelligence based on the domain-controlled electronic and electrical architecture; the core car cloud three-layer protection of high security of the four "high attributes", deep integration of All in One, safer, more efficient, redefine the leading nature of the three-electric system, while solving the user pain points such as endurance, energy replenishment, safety, etc., through efficient environmental protection, digital experience, extreme performance to meet the user's future travel needs.
High efficiency: the ultimate powertrain drive electrical efficiency
In order to promote the development of electric drive to high power density, EPA1 uses Chang'an's new generation of super collector electric drive, using eight-layer flat wire winding, rotor double V topology configuration, ultra-low resistance wire, adaptive control algorithm, low resistance topology optimization and other technologies, with 163 patents, the highest efficiency of up to 95%, so as to achieve the purpose of further reducing the energy consumption of the vehicle.
At the same time, in order to improve the problem of electric vehicles in winter, EPA1 through micro-core high-frequency pulse heating technology, random frequency conversion IGBT opening and closing control, high-frequency pulse and NVH balance algorithm, cell safety and life control, power system durability design of the technical route, in the -30 °C environment, the battery temperature rise can reach 4 °C / min, low temperature power increased by 50%, low temperature charging time shortened by 15%, greatly alleviating the experience of electric vehicles in extremely cold weather.
On the basis of pure electric technology, EPA1 took the lead in joining the mass-produced autonomous sedan range extension system, based on the ultimate efficiency of the power system collaborative design and control, the use of high-power compression than Atkinson cycle of the engine, and based on real-time road conditions using intelligent energy management control, global non-inductive operation, 1L oil can generate about 3.3 kWh of electricity. Not only that, but also the autonomous car hydrogen fuel cell system, using water and gas side stack design, through a new generation of highly active platinum alloy catalyst gradient coating, working mode intelligent perception algorithm, 1kg of hydrogen can generate 20.5 degrees, to achieve 3 minutes of ultra-fast energy replenishment, in the same platform at the same time taking into account pure electricity, extender and hydrogen energy technology.
High performance: The future drive is the gene, taking into account the ultimate performance platform of four-wheel drive
EPA1 adopts rear-wheel drive + four-wheel drive expansion technology compatible with extended range and hydrogen fuel cells, and a single motor of 190 kW can reach the level of 5.9 seconds of measured 100 km/h acceleration. At the same time, the latest generation of brake dual redundancy system and H-arm multi-link independent suspension system, 50:50 front and rear gold axle-to-load ratio, and through the wide body and low center of gravity design, improve the brake pitch control and body roll control capabilities, sensitive steering response and excellent following performance, thereby increasing high-speed stable travel and riding comfort.
High intelligence: Three domain control architectures, supporting SOA service expansion
In terms of intelligent architecture, the EPA1 platform first uses the intelligent vehicle domain controller "Changan Smart Core", the high-computing intelligent cockpit domain controller and the intelligent driving domain controller, and comprehensively improves the computing power performance of the intelligent cockpit through qualcomm Snapdragon 8155 chip, multi-core multi-system, 27 perception components of the body, etc., especially the L4 level automatic driving capability can be realized, supporting point-to-point intelligent navigation assistance driving and memory parking and other advanced functions. At the same time, the global speed OTA supports the upgrade of all node controllers of the whole vehicle, the upgrade speed of the vehicle control domain software is less than 3 minutes, and the cockpit software is double-partitioned, so as to avoid the failure of the vehicle upgrade and lead to the vehicle suspension /commonly used and new experience.
High security: 3-layer security architecture of core car cloud, 360 degree security guarantee
The EPA1 platform focuses on the security of network data, and adopts a five-layer defense-in-depth strategy and a complete set of privacy protection strategies covering the car, cloud and mobile terminals to form a 5+1 network security and privacy protection strategy to prevent network intrusion and privacy leakage. At the same time, iBC digital battery housekeeper monitors the status of the battery cell through the dual monitoring of the preferred battery cell + digital process control and the vehicle + cloud BMS to prevent the battery from running out of heat. In addition, the EPA1 platform meets the 2021 version of the C-NCAP five-star safety standard, with more than 45% of the ultra-high strength steel ratio of the whole body, and all-round protection of battery safety.
Platform masterpiece - Changan Deep Blue C385
From the EPA1 Changan Deep Blue All-Electric Digital Platform, as the first strategic model of Changan Deep Blue, Changan Deep Blue C385 is a new product created by Changan Group based on today's new energy era, further meeting the needs of consumers in the market segment, launching three power models of pure electric version, extended range version and hydrogen fuel cell version, equipped with many industry-leading technology and intelligent technology configurations, to build a cutting-edge travel experience for users.
Changan Deep Blue C385 adopts a minimalist style design, while emphasizing the sense of wholeness, it creates a sense of technology and digitality that belongs to the future through the outline of the lines. The overall styling of the C385 adopts the more popular slip-back design, the front face and the hood are integrated, emphasizing visual integrity, the large size of the sport front shovel reduces the visual center of gravity, and the rear of the car uses through taillights. The body incorporates a large number of high-tech and sporty design elements, reflecting the sense of movement of the forward swoop from the visual effect, and perfectly balances the proportions of the body.
The body size of the Changan Navy C385 is 4820× 1890×1480mm, the wheelbase is 2900mm, the aspect ratio is 0.78, and the shaft length ratio is 0.6. The body data is larger than the Model 3, and the wheelbase has exceeded the standard of B-class cars, almost reaching the level of C-class cars. At the same time, through the overall optimization of the overall aerodynamics of the body, under the blessing of the sneakback body, sports kit, hidden door handle, closed aerodynamic wheels and other configurations, the wind resistance coefficient of the Changan Deep Blue C385 is as low as 0.23Cd, which can further reduce the energy consumption level.
Under CLTC conditions, the C385 pure electric version with endurance-based has a comprehensive working range of more than 700 kilometers, a performance-oriented version with a maximum power of more than 190 kilowatts, and a power consumption as low as 12.3 kWh/100 km or less. The mileage of the extended range full fuel full power under clTC comprehensive conditions can reach more than 1200 km, the cruising range of simple electric comprehensive working conditions can reach more than 200 km, and the fuel consumption of feeder is as low as 4.5 liters/100 km or less. Under the comprehensive CLTC standard of the hydrogen version, the mileage can reach more than 700 kilometers, and the hydrogen consumption of feed is as low as 0.65 kg/100km or less, which can achieve 3 minutes of ultra-fast energy replenishment. This will be China's first mass-produced hydrogen fuel cell sedan.
Che Yun summary
The rapid change of technology has greatly stimulated our curiosity about the unknown, and the leading technology experience has become the most urgent need of consumers. On this basis, new technologies such as multi-energy replenishment forms, highly integrated domain control architecture, and super collector electric drive system with electric drive micro-core pulse heating of the deep blue all-electric digital platform have brought more technical possibilities to the new energy market. These are just the beginning, and we also look forward to Changan Deep Blue bringing us more products.