Summary
| Toyota Motor Corporation (Toyota) has incorporated some of the thermal management techniques from the bZ3 (left), which was jointly developed with BYD Auto Co. Ltd. (BYD), into the globally sold bZ4X (right), improving low-temperature charging performance. (Image source: Toyota) |
Starting with the bZ4X that went in to production in November 2023, Toyota has changed the thermal management design to improve the battery's low-temperature charging performance. It has been announced that the effect is that charging time at -10°C using a 90kW fast charger has been shortened by approximately 25 minutes (when charging from SOC 10 to 80%). The concept has already been adopted in the Toyota bZ3 battery electric compact sedan, an BEV jointly developed by Toyota, BYD Auto and FAW Toyota through the BYD Toyota EV Technology (BTET) joint venture, and Toyota is now working to bring this optimal technology closer to the global market.
To review the trends in these systems, this report compares the configuration and operation of thermal management systems, including the unique configurations of Tesla, Inc. (Tesla) and Hyundai Motor Company (Hyundai).
Analysis Reports: Thermal Management System of BEV Batteries
Related reports:
Automotive World 2024: Electrification Technologies (2) Inverters, Power Modules (Feb. 2024)
Hyundai Ioniq 5 Teardown: Thermal Management and Charging Systems (Nov. 2023)
TECHNO-FRONTIER 2023: BYD SEAL and other BEV tear-down exhibitions (Aug. 2023)
JSAE 2023 in Yokohama: Thermal Management, e-Axle Components (Jul. 2023)
Toyota's Electrification Strategy: Cutting Next-Generation BEV Production Processes in Half (Jul. 2023)
Local Reconstruction Note
This article has been expanded from the visible local mirror text, headings, tags, image captions, tables, and related local article titles. It is presented as a reconstructed reading version, not as a hidden original document.
Thermal management system configuration and operation of each vehicle
The source outline identifies this section as part of “BEV Thermal Management System Benchmarking”. Based on the available local metadata, this section should be read through the lens of Technology Show, Thermal Management, EV, Vehicles & OEMs, Toyota, BYD and the visible introduction, figures, captions, and tables.
Tesla Model Y
The source outline identifies this section as part of “BEV Thermal Management System Benchmarking”. Based on the available local metadata, this section should be read through the lens of Technology Show, Thermal Management, EV, Vehicles & OEMs, Toyota, BYD and the visible introduction, figures, captions, and tables.
(Supplement) Temperature characteristics and thermal management of drive batteries
The source outline identifies this section as part of “BEV Thermal Management System Benchmarking”. Based on the available local metadata, this section should be read through the lens of Technology Show, Thermal Management, EV, Vehicles & OEMs, Toyota, BYD and the visible introduction, figures, captions, and tables.
Related Local Signals
Nearby records in the local archive include Taipei AMPA 2026: Foxconn’s EV Technology; Smart Energy Week 2026: Batteries and Charging; Electrified Vehicle (xEV) Sales Monthly Report (March 2026); Geely i-HEV Intelligent Hybrid Technology Presentation. These titles can be used as adjacent evidence when comparing suppliers, technologies, markets, and reporting periods.