Automotive: BYD’s 8-in-1 system at a glance - January 2024
Whether volume, weight or cost savings, BYD ’s 8-in-1 powertrain is a winning system all round.
Twice a month, Yole Group analysts share the noteworthy points from their automotive Teardown Tracks. Today, Benjamin PUSSAT , Technology & Cost Analyst at Yole Group, takes us to the heart of BYD ’s all-in-one high-voltage powertrain, the most integrated electrification system on the market.
BYD claims that its 8-in-1 system is 16% more compact, 10% lighter, and saves on BOM and assembly costs compared to their former generation stand-alone systems. A few weeks after Yole SystemPlus’ first revelations about the system architecture, let’s see what their experts have found out about the subject when each sub-function of BYD powertrain (excluding the e-motor and reducer) is compared to a sampling of non-Chinese stand-alone systems.
HIGHLIGHTS FROM AUTOMOTIVE TEARDOWN TRACKS
Yole SystemPlus conducted volume, weight and cost comparative analyses considering six of the eight functions: inverter, OBC, DC-DC, BMS, VCU and PDU. The estimated savings stand at a significant 25%, 20%, and 18%, respectively. These gains offer substantial benefits, including increased space for passengers or the integration of additional functionalities, and enhanced autonomy due to a lower energy consumption. However, there are notable drawbacks to this ultra-integration approach: complex vehicle layout with one bulky component, challenging thermal management and EMI (electromagnetic interference), and a higher overall failure rate. Nevertheless, this is not slowing down the ongoing trend towards greater integration, as evident in the 7-in-1 systems from Chang’an and Leapmotor, alongside the recently announced Valeo 6-in-1 eAxle.
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- Yole Group Communications Team - communications@yolegroup.com
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