BYD Seal EV 2023MY (EU)

Key Features

The Seal is based on BYD EV e-Platform 3.0 using 800 V technology
HV battery with 82.5 kWh usable energy
- Cell-to-body integration approach
- Blade design LFP cells
- Up to 150 kW DC fast charging
System power of 390 kW & 670 Nm in top variant
- Front motor is an ASM machine and delivers 160 kW peak
- Rear motor is an PMSM machine and delivers 230 kW peak
- Acceleration 0-100 kph in 3.8 seconds
Highly integrated power electronic functions in one housing
Long wheelbase of 2.92 m
Vehicle-to-load functionality up to 3 kW

HV Battery

82.5kWh (Usable) LFP battery pack
Assumed cell supplier is the BYD subsidiary Findreams
172 blade cells are connected in series (550V nominal)
Energy density Approx. 150 Wh/kg
The pack is integrated in the refrigerant circuit of the vehicle to cool the battery
The blade cells are integrated into the aluminum housing without any bolts just using a significant amount of adhesive
Battery disconnect unit and BMS master PCBA are installed in a compartment at the front of the battery pack

"8-in-1" rear EDU

One of the vehicle highlights is the innovative rear EDU which combines eight key components in one unit.

Powertrain domain controller

Six components integrated in one unit:
1. Motor Control Unit (Inverter)
  - Inverter for E-Motor with 230 kW peak power
  - SiC MOSFET technology
  - Inverter semiconductors are used together with E-Motor to boost from 400 V to 800 V
2. On-Board Charger
  - 11 kW AC and 150 kW DC charging
  - Vehicle-to-load function up to 3 kW
3. Power Distribution Unit
  - HV connection to charging port, E-Motor and HV battery
4. DC/DC Converter
5. Battery Management System
6. Vehicle Control Unit
The powertrain domain controller underlines the ongoing trend towards higher integration levels to save weight, space and cost.

Benchmarking Report Overview

The following reports are available:

M1.1 – Level-1 Benchmark

Level-1 benchmark delivers a first vehicle overview and comparison of key performance indicators within FEV scatter bands.
M3.11 – Design Benchmark HV Battery

The BYD Seal is equipped with an 84kWh battery with a nominal voltage of 550V, using highly integrated LFP blade cells in a cell-to-pack configuration.
M3.12 – Design Benchmark EDU (e-Axle: Front, Rear 8in1)

The front EDU(Electric Drive Unit) is capable of 160 kW peak power and includes an induction motor, inverter, and 1-speed gearbox. The rear EDU is referred to as an 8-in-1 box solution, integrating the electric motor and gearbox as well as many power electronic functions.
The report can be purchased separately for the front e-Axle and rear e-Axle.
M3.21 – Cost Benchmark HV Battery

(sold as a set with M3.11 – Design Benchmark HV Battery)
M3.22 – Cost Benchmark EDU (e-Axle: Front, Rear 8in1)

(sold as a set with M3.12 – Design Benchmark EDU)

For further details including content and price, please contact:

MarkLines Co., Ltd., Consulting Services Department
Person in charge: Mr. Usuba
TEL：(03) 4241-3906
FAX：(03) 4241-3900
e-mail：benchmarkdata@marklines.com