Julier 4WD Test Drive in Alpnach

While weather is bad and Switzerland suffers from record high rain water levels, the Formula Student “julier” team was testing their race car this week-end after the rollout. This time to test the 4WD with more torque. Plus water-resistance ;-). So here are impressions, pictures and a video from this week-end:

Julier Formula Student Race Car

Julier Formula Student Race Car

Back Side View of julier

Back Side View of julier

Summer should have started, but instead it is raining, cold and snowing in the upper areas:

Shelter from the rain

Shelter from the rain

The runway of the Alpnach airfield: wet, wet and wet. Overnight it had even more rain with parts of the area under water :-(.

Alpnach Runway

Alpnach Runway

What I mean with ‘under water’ is this:

Under Water (Lauerz, Switzerland)

Under Water (Lauerz, Switzerland)

Luckily, the water was not as high on Saturday in Alpnach, so it was possible to race under wet conditions.

Safety first: Fire extinguisher for the test drive:

Safety First

Safety First

Checking the system and going through the check lists:

System Checks

System Checks

Right back wheel motor with white cooling fluid tubes:

Right Back Wheel Motor

Right Back Wheel Motor

Left Back Wheel Motor and suspension system:

Left Back Wheel Motor

Left Back Wheel Motor

Cockpit with LCD Display. On the left status LED’s and on the right push buttons to enable/disable functions like Traction Control or Recuperation:

Cockpit View

Cockpit View

HV (High Voltage) and LV (Low Voltage) switches with Ground Fault Detection (GF):

HV and LV

HV and LV

For safety reasons, special isolation gloves are used to turn on the system, and the wheels are off the ground for a first system test:

Turning on Voltage

Turning on Voltage

Check list check and going through the test plan with the pilot:

Preparing for the test run

Preparing for the test run

Video of one of the test runs:

Happy Racing 🙂

5 thoughts on “Julier 4WD Test Drive in Alpnach

  1. So the wheel motors look like they are 1/2 or more unsprung weight?
    How much do the motors weigh?

    Does it have any normal friction brakes or is it all dynamic braking from the motors?

    Like

  2. Pingback: Julier Formula Student Electrical Race Car as Television Star | MCU on Eclipse

  3. Pingback: Historic Win in Silverstone: Congratulations to the AMZ Formula Student Team! | MCU on Eclipse

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