On 25, 2020, BYD was produced in the custom electric network manufactured by the production base of Changsha. Previously, the new energy intelligence analysis network was subject to the confidentiality agreement of the manufacturer, and the D1 electric network of the D1 electric network that was not listed in the unopened state was not allowed to compare with the state of the Han EV technical state in which some technologies crossed. In fact, BYD is responsible for developing and mass production based on the latest “E ++ platform” D1 electric network, regardless of the model platform, electric drive technology, and power battery system (special thermal management control policies), it is called BYD’s highest technology model ( As of 2021 March).
[123 ] Thanks to the ID of the old horse “, the D1 electric network of the official license is hanging on Changsha and the D1 electric network of the D1 electric network. This electric network named D1 has a car with a total vehicle of 4390mm, and the 1850mm cars are wide. As a Class A car, there is a distance of 2800mm, with an axial length ratio of 63.8 percent. After the D1 electric web approach, the rear housing space is 1000 mm, the head space is 992mm, and the shoulder space is 1413 mm.
[123 From the body size, the D1 electric network has a car of the A-class vehicle, the wheelbase of the B-class car, the rear ride experience of the C-class car. Not only that, the right side of the vehicle is designed, and the driver can vote or pressThe way the key is controlled by the electric side sliding door switch, and the passengers do not have to turn off the door to improve the safe and convenience of getting up and off.
1, drive motor + new state “2-in-one” bidirectional charger system + blade battery + new “E ++ platform”:
this Used to integrate the “E ++ Platform” architecture of the front electric drive assembly, high voltage electrical control system, DLINK system, low voltage electrical system, blade battery system, and rear electrical drive system, undoubtedly representing the core technology of BYD before 2021. The highest level of technology. From the “E ++ Platform” architecture displayed, set 1 group of “3-in-1” electrical drive assembly in front and rear compositions constitute a power four-wheel drive system.
[123 According to the functional division, BYD officially defines this volume, the weight is largely reduced “3 in 1” high-voltage CDU, and the DCDC \ PDU \ OBC is integrated.
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However, from the physical level, it is set separately in the housing inside the housing. OBC, DCDC and PDU are integrated. From the perspective of technical evolution, the “E ++ platform” adapted small size “2 in 1” high-pressure charging electricity (CDU), has a large size “2-in-1” high-voltage charger than “E + platform” Higher efficiency, lower heat dissipation, smaller weight, more costly.
[123 ] Associated with this new status “2-in 1” high-pressure charging system is a drive motor based on flat line “card” winding technology. In the DM-I platform released in January 2021, the EHS mixing transmission system integrates the application of flat line “card” winding technology generator and drive motor. The maturation use of the flat line “card” winding technology makes the transverse length of the drive / generator significantly reduces the same power output / reserve.
Currently, “1 slot 4 line” winding process (yellow arrow) used by BYD drive / generators, used for DM-I platform Qin Plus, Song Plus and Don Plus models of EHS electric mixing system. It is known that the maximum output power of the drive motor in the EHS mixer system is 160 kW, the maximum speed of 16000 rpm, the maximum output power of the generator is limited to 100 kilowatts, the maximum rotational speed of 16000 rpm, all of which use oil cooling heat.
[123 ] Regardless of the “E + platform” or “E ++ platform”, the blade battery system is an important component point. The fundamental technical features of the blade battery systemLook, it is based on extreme infringement conditions, no heat, no smoke, does not afford fire, and does not burn into design traction points. In other words, based on the lithium phosphate battery and the large module package process, the process of warming the energy aggregation does not occur when encountering collisions and puncture.
The message indicates that BYD will be used in the EV model in the blade battery system; the power-type special blade battery is used for DM-I \ DM-I \ DM-P and other DM models.
2, the “E + Platform” technical status adopted by Han EV four-wheel drive:
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“E + Platform” is larger than the technology of “E platform” is large, not just “2 in 1” high-voltage bidirectional charger system and blade battery and dedicated low conductive The coolant is introduced, as well as the maximum speed of 16,000 rpm, SiC Electronic control 200 kW level “3 in 1” post-electric drive assembly first loading.
3, D1 electric network to use “E ++ platform” technical state:
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Black arrow: 16000 rpm based on flat line” card “winding technology, 100 kW level” 3 in 1 “electric drive
Blue Arrow: Water-cooled plate control module (high temperature heat dissipation)
Red Arrow: Application of Servo Blade Low conductivity coolant (hydraulic pot)
Yellow arrow: servo electronically controlled and electrically driven ordinary coolant (hydraulic pot) 
White arrow: TenV low-pressure phosphate cell
in the “E + Platform”, the “E + Platform”, the “E + Platform”, the D1 front dynamic cabin is visible, The blade battery and the thermal management system for low-conductivity coolant are retained. And the new state of the D1 electric web approval “2 in 1” high-voltage bidirectional charge and discharge system assembly, based on the electricity of the flat line “card” winding technology The drive assembly is “cut” in volume, weight, and energy consumption, do “addition” on safety and efficiency.
Servo Electro-control and electrical drive high temperature heat dissipation circulation pipeline replenishment kettle cover labeled 30 kPa pressure Value, the 15kpa pressure value of the “E platform” and “E + platform” correspondence system has improved.
The circulating line pressure of the servo blade battery is still in a blade battery configured by 15KPa, Han EV and D1 electric network. Circulating pipeline replenishment can be common interchange.
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shows D1 electric network Refrigerator rear end technology status close-up.
With multi-speed speed-saving single heat-saving fan, electronically controlled and electrically driven electronic water pump (referred to as red arrows) is still developed and mass production by BYD And do not have no extreme regulating function.
[123 ] The above picture shows the D1 electric network “2 in 1” high-voltage bidirectional electric system assembly right side of the respective division system.
Blue Arrow: The water-cooled plate control module (high temperature heat dissipation) of the servo blade battery can be associated with the Han EV \ Tang EV and other parts of the model.
Red Arrow: The sub-system for different temperature demand has been subjected to cooling fluid throughout the system, with electronic adjustment function “4-way” valve body
above shows the D1 electric network Blade Battery Front End Cooling Outlet (Red Arrow) and Communication Cable Connector Detail Close.
It is known that the Han EV, 2021 Tang EV and D1 electric networks have a blade battery and a dedicated low conductivity coolant, water-cooled plate control module (high temperature Heat), the PTC control module (low temperature preheating) and the “X pass” valve body can be interchangeable.
4, with operation safety as design traction point:
BYD manufactured D1 electric In addition to operations in Changsha, Ningbo and Xiamen have entered the delivery phase in Ningbo and Xiamen. D1 is the first in China for serving the public travel, the design traction point first considers operational safety, then the reliability of the full life cycle, focusing on the single-day operations of most people in northern China and the south. Mileage, different charging strategies and passenger comfort and other functional needs.
[123 ] For the operator, public travel safety must be fundamentally valued, but also makes the driver’s profit volume reaches a sufficient state;
For the manufacturer, Public travel safety must fundamentally be guaranteed, but also allows operators to reduce the operating costs of the operator to the extreme state;
This strictly defines the absolute safety of the D1 electric web Sex, generalized technical platform, manufacturing and maintenance cost, and functional vehicle network demand levels are ultimate. Therefore, BYD, which has R & D and mass production capacity in the new energy full industry chain (battery cell, total, electric drive, and vehicle), naturally becoming a custom electric website.
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According to the initial technical state, 2021 Tang EV uses “e platform”, Han EV adopts “E + platform”, D1 adopts “E ++ platform”, but all Configure blade battery and thermal management control that can be interchangeableSystem. Although the new status of Tang EV, Han EV and D1 has a technical test, BYD still has a higher security in the three different years. The ability of the blade battery cross-platform application is representative of BYD’s self-confidence in the blade battery in safety, which highlights the highly compatibility of all core technology self-developing and mass production.
[123 And the emergence of the D1 electric network is meant to have a profit model with BYD’s character, and will transfer from the private vehicle market to the blue sea network. The electric network is about the absolute safety demand, and the BYD’s EV / DM model has a hard strength in the world’s real market test.
About the D1 electric network of D1 electric web users manufactured by BYD, many technical parameters have not yet been informed, follow-up will continue to follow
New Energy Intelligence Analysis Network Evaluation group