Xpeng held a technical briefing for the Xpeng X9 in Songshan Lake, highlighting the collectively developed X9 Tremendous Vary-Extender Energy System constructed with Huawei.
Based on Wang Chao, President of Huawei Digital Energy’s Clever Electrical Product Line, Huawei’s cumulative powertrain shipments reached 1 million items by the tip of 2024. In 2025 alone, shipments hit one other 1 million items — exceeding the overall of all earlier years mixed. About half of the shipped parts are range-extender merchandise.
Xpeng and Huawei shaped their partnership in November 2024. 5 Xpeng fashions will use Huawei’s powertrain techniques in 2025, with extra autos deliberate for 2026.
Wang outlined 4 main challenges tackled through the growth of the Xpeng X9’s range-extender system:
Area Packaging Constraints:
By designing a extremely built-in generator and motor controller, the generator’s Y-axis dimension was compressed to ≤230 mm. Mixed with Xpeng’s front-cabin built-in die-casting, the group achieved 82 element integrations and prolonged the obtainable X-axis area by 23 mm — considerably bettering front-cabin area utilization.
Reaching 1,602 km of Whole Vary:
With an built-in high-voltage oil-cooled generator delivering ≥92% working-condition effectivity and three.6 kWh/L fuel-to-electric conversion effectivity, plus Xpeng’s in-house high-voltage EV structure, the system allows a 1,602-km mixed vary with best-in-class gas consumption in low-battery eventualities.
Sustaining Battery Reserve and Constant Energy Supply:
The high-voltage oil-cooled generator gives a steady 75 kW of energy. Paired with Xpeng’s 800V coaxial silicon-carbide electrical drive system with 93.5% complete effectivity, the car can cruise at 150 km/h with out depleting the battery, and delivers best-in-segment low-SOC efficiency with no energy drop even at 8% SOC.
Automobile NVH Optimization:
Xpeng’s self-developed cylinder-deactivation integration expertise, mixed with Huawei’s GCU control-strategy tuning, underwent over 10 rounds of joint calibration in three months, lowering range-extender startup vibration by 60%. Structural optimization of the “ultra-quiet” generator plus ENC lively noise cancellation decreased generator engagement noise to simply ≤0.5 dB.
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