BMS Hardware Engineer

About BYD

Our Purpose is to build a zero-emission future that reconnects humanity with nature. We are looking for talent that connects with this mission and want to create positive impact by joining a diverse and dynamic team.

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.

Key Responsibilities:

• Capacities for circuit design
  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.

Skills, Qualifications, and Experience Required:

• 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.

We Offer:

• 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.

If you align with our mission and have the skills we need, apply to be our HR in Germany today. Join us in our journey towards a sustainable future!

Location: Stuttgart Germany
Type of Employment: Full-time