Joey Chin

I have firsthand experience in the engineering design process, from problem formulation and requirements engineering to detailed design and final test/sign off.
I've been involved with FSAE for over 3 years and in this time have become highly familiar with the design and integration of electromechanical subsystems within motorsport technologies.
In my role at Robert Bosch, I've also gained experience in process control/stability analysis and exposure to Siemens Simatic PLC programming.

Click the following sections to view my design portfolio

Formula SAE is an international competition where teams design, manufacture and run formula style race cars. After being part of MUR Motorsports for multiple years, I was given the opportunity to lead electrical powertrain development as the team's Chief Electrical Engineer.

• Facilitation of electric powertrain integration including system concept generation, design and manufacture of multiple FSAE vehicles.
• Performing design reviews, requirements validation, providing technical advice and final sign off for 20 engineers
• Performing steady-state (load flow) and dynamic (transient response) SPICE simulations of safety critical circuits

This role required me to have a deep understanding of fundamental engineering and project management principles to drive development. A key focus was ensuring safe design and operation of the electric powertrain including a 400V accumulator and IGBT based dual inverters through FMEA.

I have experience planning and building body harnesses for both traditional EFI street/track cars along with DIN-rail junction box style harnesses for electric formula cars.
Along with this, I have designed and built the following.

Steering wheel button plate

• Designed for direct plug and play integration with MoTeC/AIM ECUs with 12 pin Deutsch Autosport connector
• 3 bolt pattern interfaces out of the box with most Momo steering wheels, additional 6 bolt coupler for other wheels/quick releases
• 600 MHz ARM Cortex-M7 processor, 2MB flash memory, 2x CAN lines
• Individually programmable buttons, rotary switch, shift lights and paddle shifters
• All components programmable via ECU/PDM voltage I/O or via integrated CAN line

Data logging system

• Data logging system that interfaces with most 2/3 wire sensor arrays, 26 and 34 way TE Superseal connectors
• 600 MHz ARM Cortex-M7 processor, 8MB flash memory, 3x isolated CAN lines, 2x Serial, 2x SPI
• 40 digital I/O connections, 31 PWM outputs, 14 analog inputs
• Internal digital fusing/overcurrent protection, pull-up/pull-down resistors
• Read/log OBD-II codes, write data directly to ECU/MoTeC D175 dash
• 1 button instant data retrival through USB, outputs to MoTeC i2 readable format

ECU signal generator

• ATMega328 based ECU simulator capable of testing benching inputs/outputs
• AD9833 series waveform generator allows for changing of output signal characteristic
• Generates different toothed signals to simulate triggerwheels/engine RPM output
• 2 main rotary encoders control simulated torque vectoring for MUR electric vehicle

I have a passion for machine design, I've always been fascinated with how things are made and the inner workings of industrial machines, especially specialist production machines. The opportunity to work at Robert Bosch has allowed me to gain a deeper appreciation for the design and operation of assembly lines.
I was also given the opportunity to automate a small business' production line for screen printing textiles.

Screen printing line

• 24V DC motor drives main conveyor with smaller NEMA17 stepper motors to control lowering/raising of frame
• T Slot aluminium extrusion allows for quick assembly during commisioning
• Integrated limit switches/emergency stops allows for safety and redundancy checks during operation
• Low cost AutomationDirect CLICK PLC for overall system control and HMI interfacing

Textile unloader

• Textile loader/unloader for dispensing blank T-shirts onto the main conveyor
• Simple ball screw linear actuators for lowering plates into position
• Single acting pneumatic cylinder produces enough force to push items onto conveyor