Tesla, the world leader in electric vehicles, has recently made frequent moves, and it is reported that the company is considering replacing its cargo card Cybertruck and truck Semi with an 800V chassis architecture. At present, many electric vehicles on the market have been equipped with 800V voltage, including Porsche Taycan, Hyindai Ioniq 5, etc. Tesla, which is widely known in the electric vehicle industry, why has it been rumored that this plan will be implemented so far, and even why has it not been preemptively equipped on the hot-selling model 3 and Model Y?
Why not replace the 800V voltage completely? The benefits are lower than the development and production costs
Tesla executives responded to why they did not replace the car with a voltage of 800V, because if all product lines were replaced with a voltage of 800V, the benefits and benefits brought to the company would be lower than the development and production costs invested. Andrew Baglino, vice president of Tesla's power and energy engineering department, said that the company has no plan and no power to install 800V voltage on the Model 3, Model Y and other hot models, because this is not economically efficient.
The 800V rated current is constant and the power is twice as high
400V voltage is the current mainstream specifications of electric vehicles, has adopted 800V voltage brands for Porsche and Hyundai, 800V has better electrical performance, when the rated current is unchanged, the power will increase to twice the original, but also can increase the fast charge power. Compared to the J1 platform adopted by Porsche Taycan, The Electric-Global Modular Platform (E-GMP) for electric vehicles launched by Hyundai Kia Group supports 400V and 800V dual-gauge fast charging specifications, a maximum charging power of 350kW, and can be recharged to 80% of the power in 18 minutes.
Contrary to expectations, high voltage will improve the competitiveness of products
Perhaps from the standpoint of some consumers, they will hope that Tesla will decentralize the chassis architecture of 800V voltage to the car with a more affordable price, and even improve the competitiveness of the product, competing with other electric vehicles on the market. In fact, Tesla has said that the company knows that consumers have such expectations for products, and the company has also embarked on the development of an 800V voltage chassis architecture, perhaps model 3, Model Y and other models can increase competitiveness, but such a decision can not bring all-round benefits to the company's overall operation.
In response to the positioning of commercial products, the 800V will be equipped with Cybertruck and Semi
Andrew Baglino, vice president of Tesla's Power and Energy Engineering Division, acknowledged that the high-voltage chassis architecture has certain advantages for the development of electric vehicles, but it is mainly suitable for medium and large vehicles that require higher charging power and more torque. Therefore, it coincides with rumors that Tesla is considering changing the cargo card Cybertruck and the truck Semi to a chassis architecture with 800V voltage.
From the perspective of vehicle product positioning, commercial vehicles with larger models, such as cargo trucks or even trucks, do need to carry high-voltage chassis architectures to provide greater torque and even towing capability. The need to have a high-voltage chassis architecture is to have a high charging power and supply a large number of in-vehicle electronic devices. In the Cybertruck and Semi models, we may soon see the 800V voltage chassis architecture, but the Model 3, Model Y and other models may have to wait.
Increasing the vehicle's mounting voltage requires a huge cost of updating
Tesla CEO Elon Musk said in an interview that increasing the voltage of its cars from 400V to 800V may improve product competitiveness and meet the expectations of global electric vehicle consumers for products; However, if this decision is implemented, it will bring huge cost pressure to the company, from the setting of vehicle system software and hardware, adaptable voltage, and even the construction of charging facilities, etc. need to be changed, so the product line layout will not be changed at this stage.