Public engineering firm profile
Dexter, MI
From Concept to Reality
SwitchBox (SWBX) is a full-service engineering consultancy specializing in system design for energy and mobility. Based in Dexter, Michigan, its cross-functional team delivers end-to-end product development from architecture and concept through prototyping, integration, and production. Core competencies include supervisory vehicle controls, electrical harness design, embedded software, thermal systems, and functional safety, with extensive experience in electric vehicles, autonomous systems, hydrogen fuel cells, and industrial automation.
Designs comprehensive energy and mobility solutions, mapping requirements from project inception to production.
Develops application software using model-based environments and C-programming, complete with calibration and verification.
Designs and prototypes embedded hardware, printed circuit boards (PCBs), and logical/physical wire harnesses.
Packages complex systems to withstand harsh environments using advanced CAD, FEA, and validation planning.
Provides logic and physical design services for liquid glycol cooling and refrigerant-based HVAC loops.
Implements robust control strategies for vehicle supervisors, engine management, drive-by-wire setups, and PLC applications.
Develops safety concepts, hazard analyses, and risk assessments adhering to international automotive and autonomous safety standards.
Enables advanced autonomy and automation through sensor integration, perception algorithms, and drive-by-wire execution.
Integrates fast charging protocols and engineered energy storage systems into compliant modular battery packs.
Designs dense zero-emission fuel cell systems, integration thermals, and hydrogen tank controls.
Automotive
Demonstrated advanced electric drive technology inside a mid-size SUV with high refinement and show-car quality. Work involved reverse engineering all Tesla interfaces, redesigning front and rear subframes, fabricating custom half-shafts, and building plug-and-play high- and low-voltage harnesses.
Automotive
Integrated electric drive technology into a full-size pickup truck without major chassis modifications. Engineered a compact under-hood auxiliary system, a custom battery enclosure for chassis fitment, high- and low-voltage harnesses, and a supervisor/gateway module for torque management.
Automotive
Reviewed and corrected item definitions and hazard analyses (HARA) to achieve compliance with ISO 26262. Prepared safety goals, fault tolerant time interval (FTTI) calculations, fault tree analyses, design failure mode and effects analyses (DFMEA), and safety concepts.
Automotive
Developed a safety-critical drive-by-wire control system using disciplined two-week sprints. Structured requirements, coded the control software, executed verification and validation testing, performed bench testing, and supported full vehicle integration.
Transportation
Developed and built a Class 8 Fuel Cell EV drayage truck by integrating two 100 kW off-the-shelf fuel cell systems. Designed high- and low-voltage electrical architectures, packaged the fuel cell thermal systems, and sized the radiator subassemblies.
Transportation
Refined and integrated hybrid trailer control systems to support electrified axle functionality. Implemented vehicle control unit (VCU) controls, integrated electric vehicle communication controllers (EVCC), developed custom display software, and engineered robust enclosures.