Premium Loudspeakers: Engineering Sound for the World’s Finest Cars

From 2021 to 2022, Raúl Bartolomé directed Harman’s European engineering group for amplifiers and speakers, delivering premium loudspeaker systems for brands such as BMW, Audi, Daimler, Volvo, Volkswagen, and Aston Martin. His leadership combined acoustics, mechanics, and electronics expertise to create iconic sound experiences under Harman/Kardon, JBL, Infinity, Bowers & Wilkins, and Bang & Olufsen — reinforcing Harman’s position as the global leader in automotive audio.

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Analog and Digital Audio Amplifiers and Multimedia Products

From 2017 to 2020, Raúl Bartolomé led Harman’s European hardware engineering department, delivering advanced audio amplifiers and multimedia systems for brands such as BMW, Audi, Daimler, Volvo, Volkswagen, Aston Martin, and Ferrari. His leadership guided the development of multi-channel DSP amplifiers, Class D/AB output stages, tuners, and communication buses, enabling flagship systems like the BMW Bowers & Wilkins Diamond, Mercedes-Benz Harman Kardon, and Audi Bang & Olufsen sound systems.

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Brilliance Automotive Huasong 7 — A Complete E/E Vehicle Development

From 2013 to 2015, Raúl Bartolomé served as Resident Project Manager for Electrical/Electronic systems in Shenyang, China, during Magna Steyr’s complete vehicle development of the Brilliance Huasong 7 MPV. He coordinated between Magna Steyr Austria, Brilliance Automotive, and BMW, overseeing supplier integration, testing, and troubleshooting. The Huasong 7, launched in 2014 with BMW’s N20 turbo engine, became the first BMW-powered MPV in China and a milestone in Brilliance’s expansion into the premium segment.

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CISIUM, Inc. — Electrical, Electronic, and Software Development Services

From 2008 to 2015, Raúl Bartolomé co-founded and led CISIUM, Inc., an engineering services company based in the Philippines. The firm delivered electrical, electronic, software, and automation solutions to clients in automotive, industrial, medical, and consumer electronics. Raúl combined executive leadership with hands-on engineering, helping customers like Lear, Böning, and Surface Technology International gain multinational-level competitiveness through high-quality, cost-efficient development services.

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Database with 6000 Electronic Part Numbers

This is a customize solution for a mid range RFID. The purpose of this product is to detect and record automatically the attendance of field staff. For example it good be used construction workers in a construction area, home nurses add patient site, or field staff visiting any other customer site. The system consistent of a control unit mounted in the field and ID units that are worn by the field staff. Each ID unit has a unique Identifier. The system uses a proprietary protocol and registers ID, IN and OUT  timestamp of the field personal and passes the information to the internet to a data collector server for further processing. The main components of the system are Microchip PIC16F873, a RTC PCF8583 from NXP and the transceiver CC1100. It was done with SMD technology in a 2 layers PCB.

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Smart Junction Boxes for Various OEMs

Smart Junction Box (SJB) integrates passive junction box features with electronic module functionality. It uses microcontroller based technology to switch power and control vehicle body functions. SJB technology utilizes a total systems approach by optimizing and integrating control and power distribution functions into a single module. SJB replaces relays and fuses with solid state electronic drivers. These self-protecting devices improve quality and eliminate the need to service fuses and relays. SJB technology reduces weight and packaging size up to 80%. The engineered SJB from 2005 to 2009 consisted of combinations of electronic blocks of MCU, DC/DC converters, linear regulators, smart FETs, BJTs, CAN transceivers, etc. With single or multiple PCBs. In all cases, the designs had to pass very strict testing requirements defined by the OEMs and international standards.

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Putty Heated Pumps for OEMs Production Line

Date: 2000.Developed by ASM Dimatec.Clients: numerous vehicle manufacturers.Authors: Raúl Bartolomé Castro and other engineers.Contribution of Raúl: electrical designer. Creation of schematics in ePAN, selection of electrical elements and creation of electrical documentation.Market: automotive subsidiary.Product category: industrial machinery. The project consisted of heated pumps for the application of putty, which is applied at the junction between bodywork and glass as a sealing method. The pump is optimized for the extraction of very low viscosity fluids. All the hoses are heated, as well as the piston, valves, etc. The electrical control box is made up of PLCs, magnetothermics, electromechanical relays and solid…

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Sheet Stacker for Ford Production Line

Date: 1999 - 2000.Developed by ASM Dimatec.Customers: Ford.Authors: Raúl Bartolomé Castro and other engineers.Contribution of Raúl: electrical designer. Creation of schematics in ePLAN, selection of electrical elements and creation of electrical documentation.Market: automotive subsidiary.Product category: industrial machinery. This system consisted of a press line and the sheet unstacking system. The de-stacking was implemented using a robot, which extracted the sheets from the pile and introduced them in the first press. The security criteria were very severe: Pilz security automatons and all wiring with an emergency mechanism. The project was selected to carry out an audit of the QS9000, which is…

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Putty Glass Application for Seat Production Line

Date: 2000.Developed by ASM Dimatec.Clients: Seat.Authors: Raúl Bartolomé Castro and other engineers.Contribution of Raúl: electrical designer. Creation of schematics in ePAN, selection of electrical elements and creation of electrical documentation.Market: automotive subsidiary.Product category: industrial machinery. This machine consisted of applying putty to the car's rear window, made up of two well-differentiated blocks, one heated pumps and the other a Cartesian axle system for applying the putty. The most tedious part of the design consisted in the numbering of the terminals of the electrical cabinet, as well as the manual drawing of the same. In the illustration on the left you…

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