Mature integrated power module technology, multi in one solution reshaping the power architecture of new energy vehicles
Time：May 27,2026
By 2026, integrated power module technology will be fully mature, and multi in one power solutions will become the mainstream choice for high-voltage systems in new energy vehicles. By deeply integrating functional units such as DC/DC, OBC, MCU, PDU, etc., the power system will be miniaturized, lightweight, and efficient, reshaping the overall electrical architecture of the vehicle. Traditional decentralized power systems suffer from pain points such as multiple components, complex wiring harnesses, high costs, and low reliability. Integration has become the core path for the industry to solve these pain points and is also an inevitable requirement for adapting to 800V high-voltage platforms and domain control architectures.
The development of integrated power modules presents three core features: firstly, highly integrated functionality, with mainstream six in one and eight in one solutions covering full functions such as OBC, DC/DC, MCU, PDU, high-voltage relays, and charging management. Some high-end products integrate BMS and thermal management control units to achieve comprehensive control of the power system; The second is the leap in power density, using SiC power modules, embedded packaging, and 3D cooling technology, with a power density of over 4kW/L, an increase of 60% compared to decentralized solutions, a 50% reduction in volume, a 40% reduction in weight, and a significant release of vehicle space; The third is efficient collaborative control, based on domain controllers or dedicated main control chips, achieving millisecond level collaboration among various functional units, improving energy conversion efficiency by 5% -8%, and reducing vehicle energy consumption by 3% -5%.
Technological innovation focuses on two key aspects: integrated architecture and thermal management. At the architecture level, a shared power board, unified heat dissipation channel, and integrated control bus design are adopted to reduce the connection cables and interfaces between components, thereby reducing EMI interference and fault risks. At the level of thermal management, liquid cooling solutions have completely replaced air cooling, using microchannel liquid cooling plates and integrated sealing processes to improve heat dissipation efficiency by 50%. This ensures that the temperature of each unit remains stable within a reasonable range under high load conditions, meeting the requirements of a wide temperature range of -40 ℃ to 125 ℃. At the same time, the functional safety level reaches ASIL-D, and the EMC meets the CLASS 3 standard, significantly enhancing reliability under extreme working conditions.
Market penetration is accelerating, and by 2026, the adoption rate of integrated power modules in new cars will reach over 60%, with high-end models achieving 100% coverage. The cost advantage is gradually emerging. After large-scale production, the multi in one solution reduces hardware costs by 15% -20% compared to the decentralized solution, reduces assembly time by 30%, and reduces after-sales maintenance costs. With breakthroughs in domestic power devices, main control chips, and packaging technology, the localization rate of integrated power modules continues to increase, breaking the monopoly of overseas suppliers, promoting independent and controllable supply chains in the industry, and providing core support for cost reduction and efficiency improvement in the new energy vehicle industry.
keywords： Mature integrated power module technology, multi in one solution reshaping the power architecture of new energy vehicles
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