BEV Thermal Management System Benchmarking

Toyota, BYD, Tesla, and Hyundai EVs: Precise control and reduced energy consumption

2024/04/23

Summary
Thermal management system configuration and operation of each vehicle
Toyota, BYD
Tesla Model Y
Hyundai Ioniq 5
(Supplement) Temperature characteristics and thermal management of drive batteries

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

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