The Waterloo EV Challenge takes place each spring at the University of Waterloo. This is the premiere event for the Electric Vehicle Challenge. This page contains information relevant to all visitors -- both teams and the general public.
Parking and directions
The event takes place around the East Campus buildings at the University of Waterloo in Waterloo, Ontario. Parking is available in the Q parking lot for visitors. Parking is not accessible from Ring Road, the university's main internal artery — access is only from 263 Philip Street (use this address if using a GPS).
Food around campus
- The East Campus buildings are located across from Tim Hortons (at Columbia and Philip) and next to the Campus Plaza (at University and Philip).
- The University of Waterloo Concrete Toboggan Team will be on-site and will be selling Boggan Burgers. Proceeds go to support the student-led Concrete Toboggan Team.
|8:00 am - 9 am||
|10:10 am - 11:35 am||
|11:35- 1:00 pm||
|1:30 - 3:15 pm||
The time allotted to each race is longer than the official race time — this is to allow for cars to be stopped, moved off the track, repaired, etc.
Live stream of results
The event will be live streamed from the scoring table. From here, the most recent scoring data and the official time is broadcast. In addition to score information, the broadcast will also stream from cameras, and provide official announcements about the race. The live stream is the only official source of information about the race while it is ongoing.
Teams are encouraged to bring smart phones and laptops to connect to the live stream. An app is available for Apple and Android mobile devices (Blackberry devices are not supported).
To access the live stream:
- On laptops, visit Ustream.tv website and search for "WaterlooEV", or visit the channel page at ustream.tv/channel/waterloo-ev-challenge
- On smart phones (Android and iPhone), download the Ustream app and search for "WaterlooEV."
Teams dropping off vehicles and equipment will enter the course at the green arrow above and drive to the Team Setup area.
- Team trailers (and the vehicles towing them) may be parked in the Trailer Parking area on the map above.
- No cars will be parked in this area; cars will park at the designated parking area on the map above. Space is extremely limited in the team areas.
Local teams (i.e., Waterloo Region) are asked to drop off their vehicle at 4 pm on the Friday before the competition.
- It will undergo safety inspection at this time and the team complete the on-site registration component.
- Vehicles will be stored securely overnight (a security guard will watch over all trailers).
Transponders and electronic scoring
The Electric Vehicle Challenge makes use of electronic infrared transponders to count laps. The start-finish line consists of a line of receivers that are strung over the track, connected to the scoring computer. The computer automatically tabulates the competition results, which are broadcast to the live stream.
Mounting the transponder
- Transponders are attached to vehicles with Velcro provided by the organizers.
- Teams should mount the transponder to a flat surface facing upwards at the nose of the vehicle. It should be as level as possible, and the construction of a dedicated mounting bracket may be required (see example in the photograph above).
- It must be free of obstruction; the transponder uses line-of-sight.
- The transponder is approximately 3.2 cm in length and 2.6 cm in width.
Powering the transponder
The transponder requires 12 V, which must be fed from one of the 12 V batteries used to power the vehicle.
- Teams should be careful not to run them on 24 V; this will damage the transponder.
- There should be no switch between the transponder and the power source. Once the transponder is plugged in, it should begin to operate.
- The power draw from the transponder is minimal, and will be one of the last things to fail on vehicles (the transponders will operate on as low as 7 V, whereas cars will stop running around 10.5 V).
- Power connectors. To connect power to the transponder, servo connectors wll be mailed to schools ahead of time (see picture of the connector below). The black lug of the servo connector plugs into our transponder. Cut the red plug off the other end of the connector and securely connect the black and red wires to one of the vehicle batteries. The red wire is connected to the positive (12 volt) battery terminal and the black wire is connected to the negative (ground) terminal.
- If you require additional connectors you can also purchase them online from any hobby parts distributor, e.g. Tower Hobbies.
- The connector should be securely located next to the mounting location for the transponder, with enough slack in the cable to allow it to be plugged into the transponder. (approximately 5cm)
- You are expected to have your car(s) fully prepared for mounting and powering the transponder before you come to the race.
Run through this check-list to make sure your vehicle is ready for the scoring system.
- There is a mounting area with at least 3.2 mm by 2.6 mm in space.
- The mounting area faces directly upwards.
- The mounting area is at the nose of the vehicle.
- The mounting area is unobstructed (transponders use line-of-sight)
- Power is provided from the vehicles`12V battery to the mounting area, with the positive battery terminal connected to the red wire, and the negative battery terminal connected to the black wire.
- The power to the mounting area is independent of the vehicle's on/off switch.
- All the wiring is securely fastened to the vehicle.
- The use of additional battery packs to run the scoring transponder are prohibited. The transponder must be run using the vehicle battery directly.
On the day of the race:
- The transponder's label matches the car number.
- Power drops will not be available in the pits.
- Teams may take their batteries to the nearby Engineering 5 building for charging.
- Teams may bring a generator to power their tools.