LA eRacing e.V. - Formula Student Electric Team

LA eRacing e.V.

We are the Formula Student Electric Racing Team of the University of Applied Sciences Landshut, founded in 2010 with the aim of providing a practical environment for students from all faculties to apply and develop their theoretical knowledge in every step of the process.

With our 200 overall members, from which 71 are active members, we are looking forward to the 2023/24 season with curiosity and the certainty that we will also continue to develop our social skills. We feel the duty to evolve our racing cars from season to season, but also to promote the exchange between us members and the fun working together as a core goal of our association.

According to the motto "We electrify you" we strive to inspire each other for new tasks and challenges and to pass on our experiences to following generations of students.

All our efforts and knowledge are manifested in our Ginny, our 7th vehicle of the Formula Student Electric series.

In the following video you can see a summary of the last season, where we participated in three different events: Formula Student Czech Republic, Formula Student Germany and Formula Student Alpe Adria.

We use many different PCBs for various functions, which are all designed by ourselves.

HV-Board

Our HV-Board is the PCB through which our high-voltage circuit operates. It facilitates the switching of the AIRs, and controls the AMS and TSAL green light. Additionally, the board accommodates the Voltage Indicator circuit, an external LED that indicates whether high-voltage is present or not. On the HV-Board is also a Microcontroller Board that is our local control unit and evaluates our CAN messages from the AMS, IMD and central VCU. For that we use the C2000 from Texas Instruments and program it with Matlab/Simulink.

HV-Board - diverse functions for high-voltage circuit

Microcontroller C2000 - local VCU of the HV-Board

TS-Board

The TS-Board is located in our Inverter Box. For the TSAL red light functionality we evaluate with our measurement circuit, if high-voltage (>60 V) is active. Furthermore, we have a 12 V to 5 V buck converter for the power management. If the vehicle is turned off, the discharge relay ensures discharging of the high-voltage system in less than 1 s.

TS-Board - PCB in the Inverter Box

BSPD - Brake System Plausibility Device

The so-called safety circuit (SC) is to be leaded over this PCB. It is monitoring the power dissipation of the motor controller and compares it against the brake pedal pressure. If both values (motor power dissipation and brake pedal pressure) exceed pre-defined values, the SC must be disconnected and has to stay disconnected until the ground level power supply is power cycled. A possibility to check the functionality of the BSPD manually must be provided.

Finally, we have the last two PCBs which we design by ourselves: the Piggy Bag, with one mounted on each accumulator module, and the Dashboard PCB, which controls the LED lights in Ginny's cockpit.

On the Piggy Bag´s the temperature connectors and the voltage sense line are located.

We, as a team, would be very grateful for the support from PCBWay. Through a partnership like this, we can educate ourselves on designing our PCBs and broaden our horizons, making our design and engineering phases much more exciting.

Let´s keep racing.

We electrify you!