BMS Hardware Engineer

Proficient in analog circuit and digital circuit design, familiar with high-precision ADC acquisition, DC-DC isolated power supply, MOSFET driver, active / passive equalization circuit. Proficient in at least one EDA tool: Altium Designer, Cadence (OrCAD / Allegro), PADS, Protel. Experience in multilayer PCB Layout, able to complete layout and routing independently, focusing on high voltage isolation, thermal design, signal integrity.

• BMS Expertise Deep understanding of the BMS system architecture: Main Control Board (BMU), Acquisition Board (CMU / CSB), High Voltage Board (HVU) function division and design. Familiar with core device selection: AFE chip (such as TI, NXP, ADI series), MCU, isolation communication chip, SBC chip, etc. Understand the charging and discharging characteristics of lithium batteries, the principle of SOC / SOH estimation, and the equalization strategy.

• Communication and Interface Protocol Proficient in CAN / CANFD, RS485 / 232, SPI, I2C, UART and other bus interface design. Understanding UDS / OBD diagnostic protocols.

• Test validation and certification Skilled use of test equipment such as oscilloscopes, logic analyzers, spectral analyzers and electronic loads, heat sinks. Experience in EMC / EMI design and rectification (filtering, shielding, grounding, etc.). Knowledge of safety standards (IEC / GB / UL / CE) and functional safety concepts (ISO 26262 / IEC 61508). Experience in DV / PV validation, FCT / EOL testing is preferred.

• Other points Experience in full R&D of BMS production project (from solution to SOP). There is a case of BOM cost reduction. Understanding the ASPICE process. High voltage ( 1500 V) high current energy storage product development experience., * Full-time subject learning experience, with work experience is preferred.

• Electrical and electronics, automation, vehicle engineering and other related majors, familiar with analog and digital electronics.
• Familiar with BMS control strategy and front-end shunting experience is preferred.
• Knowledge of battery pack electrical and electronic systems (including BMS, distribution box, wiring harness, etc.) is preferred.
• Familiar with Simulink or embedded software development tools is preferred.
• Fluent in English and Chinese, German is preferred.

• Competitive remuneration based on performance and experience.
• Opportunities for department and company-wide team building events.
• A chance to contribute to the transition towards zero-emission transportation and the decarbonization of the economy.

BYD is a leading, high-tech multinational, based in Shenzhen, China. Operates in four core fields of IT, automotive, new energy, and rail transit and employs over 300,000 people worldwide. As a global pioneer in New Energy Solutions BYD is dedicated to building a zero-emission ecosystem.