BYD's latest institutional survey minutes are supported by a number of new technologies to further expand its overseas territory

1. Regarding the market and brand:

Question 1: As the leader of thenew energytrack, how is BYD expanding in the American passenger car market?

A: Recently, after entering Colombia, Uruguay, Bahamas, Dominican Republic and Costa Rica, BYD Han EV officially landed in Brazil.On the day of the event, BYD Brazil Branch invited the country managers of BYD branches in Latin American countries and many well-known Brazilian automotive media in Rio de Janeiro to witness the important moment of Han EV's launch in Brazil.This marks the further expansion of BYD's passenger car market in Latin America and the Caribbean.Well-known local car dealers such as Eurobike, Saga, Servopa, IESA, Águia Branca, GNC, Parvi and Dahruj all cooperate with BYD.It is expected that by the end of this year, BYD Brazil will work with various dealers to cover the pure electric passenger vehicle business in 45 major cities in Brazil, and plans to have 100 designated dealers by the end of 2023.

Question 2: How is the company's expansion in the American public market?

A: VEMO, the largest local new energy transportation operator in Mexico, purchased a total of 1,000 D1s from BYD Mexico, of which 200 have been put into operation locally.These 1,000 D1s form the largest pure electric taxi fleet overseas, which will create more than 3,000 local jobs.The D1 is equipped with a BYD blade battery with a maximum cruising range (NEDC) of 418 kilometers.The right rear door of the D1 adopts a side sliding door design, which is convenient for rear passengers to get on and off, and can also avoid safety accidents caused by visual blind spots.D1's wide rear space provides passengers with a comfortable ride experience.BYD and VEMO have joined forces to jointly promote the electrification of transportation in Mexico and bring new options for green travel to local people.

Question 3: How is the operation of the company's Chongqing Yunba Line?

A: The world's first Yunba demonstration line officially opened for operation in Bishan District, Chongqing City on April 16, 2021. As of April 16, 2022, the first anniversary of the safe operation of Bishan Line.This year, the fulfillment rate of the Yunba train operation map was 99.99%, and the punctuality rate was 99.98%. The overall goal of safe operation of "zero accidents, zero casualties, and zero losses" was achieved.

Question 4: The latest progress of BYD's commercial vehicles going overseas?

A: On April 1, BYD announced that it has won an order for 48 12-meter pure electric buses from Volánbusz, the largest public transport operator in Hungary, which is the largest pure electric bus order BYD has won in Hungary so far.The vehicles are expected to be delivered by the end of this year, with operations in five Hungarian cities.

Question 5: What is the future cooperation model between Daimler and BYD in terms of DENZA?

A: The strategic development of Denza will be led by BYD and supported by Mercedes-Benz.BYD will be responsible for the strategic planning of the Denza brand, especially in terms of technology research and development, product planning, etc., to provide all-round and strong support for Denza.The Denza brand will have three independent attributes: an independent brand, operated by an independent team, and an independent product matrix and design language.On this basis, the Denza brand also has three leading core competitiveness: leading new energy and safety technology, leading smart luxury product quality and leading user ecological service system.

Question 6: What is the company's expectation for the Denza brand?

Answer: The new Denza extends from the release of the new visual image, the sorting out of the brand system, the core value to the product matrix planning. Denza fully demonstrates the new era, new starting point, facing opportunities and challenges with a new attitude, and embracing a smart future. determination and attitude.

Question 7: In addition to the dolphin, what other models will be released in the company's marine life series?

A: Following the Dolphin, the company is expected to release the model Seal on May 20 and start pre-sale, as well as release the company's CTB technology.

2. Regarding models and technologies:

Question 1: The BYD Seal model is selling well. What hard-core technologies does this model currently carry?

A: Under the electrification change, traditional vehicle control strategies cannot meet new demands. For people, in addition to the mobility attributes, cars also need to be playable to a certain extent.In order to improve the driving performance of electric vehicles while laying a solid foundation for safety, so that consumers can experience more driving pleasure, BYD exclusively developed the intelligent torque control system iTAC (intelligence Torque Adaption Control).In terms of response speed, the recognition accuracy of iTAC has been improved by more than 300 times, andthechange trend of wheel speed can be predicted more than 50ms in advance.When the grip of the wheel end is abnormal but there is no slippage, the system has already recognized the abnormal grip and adjusted it in advance to restore the stability of the vehicle.In terms of control strategy, the traditional control strategy can only control the vehicle by reducing the torque through braking when faced with slippage.On the basis of pre-judgment, iTAC provides a variety of methods such as transferring torque, appropriately reducing torque and outputting negative torque, aiming at the characteristics of fast response speed and more accurate speed adjustment of the motor.In addition, the seal is equipped with CTB (Cell To Body) technology for the first time.The volume utilization rate of the power battery battery system is increased to 66%; the collision intrusion of the side pillar of the battery pack is reduced by 45%; the torsional rigidity of the whole vehicle is doubled, and the handling is better (the elk test is 83.5km, the high-speed single line shift is 133kph, the fixed-circle rotation Lateral acceleration 1.05g), while suppressing body vibration, it is more stable and more comfortable.The gentleman's leopard changes, its Wen Wei also.I hope that in the future, the seals can bring you more surprises.

Question 2: Can you interpret the iTAC technology?

A: Under the electrification change, traditional vehicle control strategies cannot meet new demands. For people, in addition to the mobility attributes, cars also need to be playable to a certain extent.In order to improve the driving performance of electric vehicles while laying a solid foundation for safety, so that consumers can experience more driving pleasure, BYD exclusively developed the intelligent torque control system iTAC (intelligence Torque Adaption Control).In terms of response speed, the recognition accuracy of iTAC is improved by more than 300 times, and the change trend of wheel speed can be predicted more than 50ms in advance.When the grip of the wheel end is abnormal but there is no slippage, the system has already recognized the abnormal grip and adjusted it in advance to restore the stability of the vehicle.In terms of control strategy, the traditional control strategy can only control the vehicle by reducing the torque through braking when faced with slippage.On the basis of pre-judgment, iTAC provides a variety of methods such as transferring torque, appropriately reducing torque and outputting negative torque, aiming at the characteristics of fast response speed and more accurate speed adjustment of the motor.Under the great wave of electrification technological changes, breakthroughs in vehicle control technology have been achieved, and the performance and control boundaries of electric vehicles have also continued to expand.iTAC technology is the result of BYD's exploration of the fun of electric vehicle driving and will be installed on the new e-platform 3.0 model.BYD will always adhere to the development concept of "technology is king, innovation is the foundation", and strive to bring more and better product experience to consumers through technological innovation.

Question 3: Is there any technological innovation in the thermal management system of the seal, can you introduce it?

A: All SEAL series come standard with active air intake grille AGS.On the one hand, the aerodynamic drag coefficient of the vehicle can be significantly reduced, thereby reducing the driving energy consumption of the vehicle.On the other hand, turning off AGS in a low temperature environment is equivalent to putting warm clothes on the front cabin, reducing heat loss.AGS improves the preheat utilization efficiency of the low temperature heat pump system by 20%.At the same time, the powertrain is upgraded to an oil-cooled heat dissipation system, which uses oil to fully absorb the waste heat of the powertrain and further improves the utilization efficiency of waste heat.

Question 4: What are the advantages of SEAL CTB technology?

Answer: Cell to Body, the battery-body integration technology makes the upper limit of fuel vehicles become the lower limit of electric vehicles, the battery "sandwich" structure has evolved into the vehicle "sandwich" structure, the high-safety blade battery creates a solid foundation, and the honeycomb structure allows safety to evolve again , The closely arranged blade batteries, upper cover and floor form a honeycomb-like "sandwich" structure, achieving a breakthrough in the structural strength of the battery system, doubling the torsional stiffness of the vehicle, and the battery is both an energy body and a structural component.

Question 5: How does iTAC technology improve handling?

A: The company released the iTAC system (Intelligent Torque Control System), the vehicle status can be recognized not only through the wheel speed sensor, but also through the motor resolver sensor.Compared with the wheel speed sensor (recognition frequency of 32 or 48 words), the motor resolver sensor has a recognition frequency of more than 4096 words and can predict the change trend of wheel speed more than 50ms in advance.iTAC will recognize the abnormal grip and adjust it in advance when the tire is abnormal but not slipping.In terms of torque adjustment, iTAC has changed the control method that could only be reduced by torque in the past, and upgraded it to torque transfer, appropriate reduction of torque, and output of negative torque to maintain vehicle stability.Torque transfer: transfer torque from the low-adhesion wheel end to the high-adhesion wheel end; output negative torque: output negative torque at the low-adhesion wheel end to increase the high-adhesion wheel end torque.

Question 5: The Denza D9 model will be launched in the near future. Can you give us some relevant information?

A: On May 16, the Denza brand launch conference of "Hello New World" and the pre-sale of D9 started, and Denza officially entered a new stage of development.The new Denza has extended from the release of the new visual image, the sorting out of the brand system, the core value to the product matrix planning. manner.At this press conference, Denza D9, the first model under Denza's brand new strategy, officially opened for pre-sale, bringing a total of 6 configuration versions of DM-i super hybrid and pure electric. The pre-sale price range is 335,000 yuan to 460,000 yuan; in addition, a founding model was also launched, with a pre-sale price of 660,000 yuan and a limited number of 99 units.

Denza D9 is a medium and large-scale high-end new energy MPV integrating luxury, intelligence, power and safety.The new car adopts Denza's new design language π-Motion - π is aesthetic rational thinking, Motion is the feeling of new luxury potential energy, redefining the epoch-making new luxury aesthetics.The dimensions of the whole vehicle are 5250/1960/1920mm in length, width and height respectively, and the wheelbase is 3110mm. While ensuring the passenger space, it also takes into account the convenience of passengers entering and leaving.Denza D9 has 30 first-launch, leading and unique advantageous configurations in the MPV market segment. With the five luxury items of "design, ride, intelligence, driving, and safety", it brings users an epoch-making new luxury experience and opens up the "new" high-end MPV. Potential Boundaries".

Relying on BYD Group's strong new energy technology strength, Denza D9 is committed to creating the best new energy luxury MPV.Denza D9 is equipped with DM-i super hybrid technology and e-platform 3.0 technology, which are very advantageous in the current market.The DM-i super hybrid version has a comprehensive battery life of 1040km and a pure electric battery life of up to 190km. It can be used on both oil and electricity, and has a worry-free battery life. The fuel consumption per 100 kilometers is as low as 5.9L. It is equipped with 80kW DC fast charging, and the charging time is 30%-80%. It only takes 25 minutes; the EV power system is built on the e-platform 3.0, equipped with an eight-in-one electric powertrain, a wide temperature range heat pump system, BYD ace technology blade battery, etc., the CLTC can last up to 600+km, and it can last for 10 minutes after charging. 150km, 30%-80% charging time for 30 minutes, easily solve the user's mileage anxiety and bring a safer and worry-free electric travel experience.

Based on the insights of users' smart travel needs, Denza has created the Denza Link super-intelligent interactive cockpit that can realize 5G speed connection. It has the world's first seven-screen interconnection design, with black gold, flat UI design and full-scene intelligent voice The system supports continuous dialogue in the four-tone area, which can be said when visible, so that every member of the car can enjoy the driving life of a smart home.At the same time, D9 is equipped with the new Denza Pilot advanced intelligent driving assistance system, supports L2+ level intelligent driving assistance functions, leads the computing power industry, and has an all-round perception system with 24 sensors, making safe driving more intelligent.

Question 7: Which BYD technologies will the Denza brand use?

A: BYD will shape the new Denza luxury product matrix in an all-round way from vehicle design, performance adjustment, and internal and external details polishing.All Denza product series will enjoy the empowerment of BYD's "Technology Big Fish Pond": including e-platform 3.0, DM-i super hybrid technology, "sandwich" structure blade battery and other technologies.

Question 8: What are the highlights of Denza D9 in terms of smart cockpit?

A: Based on the insights of users' smart travel needs, Denza has created the Denza Link ultra-intelligent interactive cockpit that can realize 5G speed connection. It has the world's first seven-screen interconnection design, with black gold, flat UI design and full scene The intelligent voice system supports continuous dialogue in the four-tone zone, which can be said when visible, so that every member of the car can enjoy the smart home driving life.At the same time, D9 is equipped with the new Denza Pilot advanced intelligent driving assistance system, supports L2+ level intelligent driving assistance functions, leads the computing power industry, and has an all-round perception system with 24 sensors, making safe driving more intelligent.

Question 9: Why can the CTB battery pack help improve the torsional stiffness of the body?What is the principle?

A: The structure of the CTB blade battery system is inspired by the honeycomb structure.The blade battery itself is very safe, so the adjacent cells can be arranged closely together. The structure composed of rows of blade batteries is like a honeycomb aluminum core, and then through the sandwich structure of the honeycomb-like aluminum plate composed of the upper cover and the bottom plate, which makes The structural strength of the CTB blade battery system has been broken through.Previously, the company did an experiment: we used a 50-ton heavy-duty truck to crush the battery pack.At 50 tons, it is several tons heavier than the A320 passenger plane that everyone took. After the CTB blade battery pack was crushed by a 50-ton truck, the battery pack had no obvious deformation, no leakage, and no fire.At the same time, after the battery pack is installed back into the vehicle, the vehicle can still drive normally.The safety and structural strength of the CTB blade battery system eliminates the need for additional protection for the battery at the expense of other performance indicators.Figuratively speaking, the CTB battery pack is not a baby, but an adult. It also has to take on family responsibilities and make money to feed the family.In other words, CTB technology allows the performance of electric vehicles to be fully exploited.First of all, the integration of the body floor and the upper cover of the battery releases the space occupied by the original multi-layer structure, and the volume utilization rate of the power battery system using CTB technology is increased to 66%.Therefore, the company integrates the battery pack with the body through CTB technology, and participates in the force transmission of the whole vehicle as a structural component, which greatly improves the safety performance.The collision intrusion of the side pillars of the whole vehicle is reduced by 45%, which can create a continuous electric vehicle.CTB technology makes the high-rigidity blade battery more closely integrated with the body, and the torsional rigidity of the whole vehicle is doubled.Taking the seal as an example, the torsional stiffness of the body has exceeded 40,000N m/°, which is comparable to that of a million-dollar luxury car. It can be said that the upper limit of fuel vehicles has become the lower limit of electric vehicles.

Question 10: How is the company's fast charging technology progressing?

A: High voltage is an advanced technical solution that many partners in the industry are currently pursuing.Back in 2015.Ournew energy vehicleshave been equipped with high-voltage platforms for seven years.After dozens of models, the word-of-mouth verification of millions of users.The high-voltage electric drive boost charging scheme of e-platform 3.0 increases the charging power through the high-voltage platform.Make full use of the national standard charging limit.Achieve ample, constant power charging.Fifteen minutes charging mileage over 300km.Achieve shorter charging time than competing high-power charging.And fully compatible with all current public charging piles.This is a fast charging solution that is more suitable for Chinese consumers at the moment.