New Energy STEM Generation

Size: px

Start display at page:

Download "New Energy STEM Generation"

Gwendoline Harper
5 years ago
Views:

1 Inspiring Young Minds, striving for a Greener Hong Kong 新能源 STEM 世代 New Energy STEM Generation 可載人太陽能車工作坊 ( 五 ) 賽道策略知多點 28July2018

2 Key dates 1. Pre-registration 14 th April 2. Workshops 14 th April - 28 th July 4. Technical webcast 24 th August 3. Technical submission 23th June - 4 th August Important announcement: Regulation updated on 21 st July Extend the deadline to 4 th August, if the team not submit on time, team will be out, 25 st August will release the updated team 5. Submission of all documents 21 st July 4 th August Document including Electrical drawing, and technical submission 6. Scrutineering day 15 th September 7. Event day 20 th October Team visit will be arranged in August Event day changed from 13 th to 20 th October 2

3 Contents 1) Case studies 2) Race track analysis 3) Race operation and remarks 4) General questions 3

4 Case studies SOPHIE VI on World Solar Challenge (WSC) 2017, in Australia 4

5 Case studies Gradient on the WSC route 5

6 Case studies Speed required for each day: Example: For Day 1, -Spend 7.5 driving time -Driving distance is 534km Speed= Speed = Driving distance (km) Time available for driving (h) = 71.2 km/h Time (h) Driving distance (km) Average speed(km/h) Day Day Day Day Day Day

7 Case studies Energy calculation for each day: Example: For Day 1, Power = Force x Velocity Power = 90.4 x Power = W Average speed(km/h) Force(N) Power(W) Day Day Day Day Day Day

8 Case studies Energy calculation for each day: Example: For Day 1, Energy required: Energy required = Power x time Energy required = x7.5 Energy required = 13.4kWh Energy required (kwh) Battery pack capacity determined by : Battery energy + Solar energy = Energy required Solar energy (kwh) Battery energy (kwh) Time (h) Power(W) Day Day Day Day Day Day

9 Case studies SOPHIE SEM on Shell Eco-marathon Asia 2012, in Malaysia 9

10 Case studies SOPHIE SEM on Shell Eco-marathon Asia 2012, in Malaysia 10

11 Case studies Case study: 同濟大學 Acceleration strategy (1): Reference from: 同濟大學 Eco Power 2011 年度總結報告 11

12 Case studies Case study: 同濟大學 Acceleration strategy (2): Reference from: 同濟大學 Eco Power 2011 年度總結報告 12

13 Race track analysis New Energy STEM Generation racetrack: Racetrack Take place in IVE (Tsing Yi) Start from IVE TY swimming pool, Basket court, to THEI student accommodation Total length is around 1.2km 13

14 Race track analysis New Energy STEM Generation racetrack: 游泳池起點終點籃球場 10 秒停車位學生宿舍 ( 青衣 ) 14

15 Race track analysis Consider which parts can do the acceleration. 15

16 Race track analysis Refer to driving force calculation to determine the acceleration force: 16

17 Race track analysis 每組可於指定時間內行走 3 轉 ; 每轉 2 個圈 ; 比賽獎項 : 最佳時間最佳創意環保設計最佳能源效益全場總冠軍每轉必須於指定地點停車 1 次 ( 停車時間 10 秒 ). 17

18 Race operation Radio Communication Car on-board communication system Understand and fulfil the regulations Listen the instruction from NESG campaign Logistic arrangement (Truck rental) Duties of team members Team mangers Drivers Electrical and Mechanical team 18

19 Scrutineering day Coming up: 4. Technical webcast 24 th August Explain the details of scrutineering arrangement 6. Scrutineering day 15 th September Check the car whether fulfil our requirement on regulation Not need to come to IVE Tsing Yi! The webcast connection details will be released on early August through ! 19

20 Inspiring Young Minds, striving for a Greener Hong Kong 新能源 STEM 世代 New Energy STEM Generation 2018 小休 20

21 General questions 1) Joulemeter installation 2) Battery requirement & Lithium Battery usage 3) Brake lights 4) E-stop connection 5) Chassis: pipe and corner brace 6) Helmet 21

22 Joulemeter installation Joule meter Function: Provided by NESG Campaign for teams All joulemeters are identical, with same size, and function Each teams will have 2 joulemeters Use to measure the power input and power output Received the data, to determine the energy consumption of cars Will be collected back after the event day 22

23 Joulemeter installation Joulemeter dimension: 10 cm 3.3 cm 18.8 cm 23

24 Joulemeter installation Joulemeter dimension: Banana Plugs(Teams have to purchase): 2 Joulemeters: Solar <-> Battery Battery<->Motor (2 input terminals: Input + & input ) (2 output terminals: Output + & output ) 24

25 Joulemeter installation Positive wire Negative wire Solar <-> Battery Battery<->Motor MPPT Motor Controller Motor Battery pack Fuse Internal E-stop External E-stop 25

26 Brake light Brake light should be on, ONLY when brake system is applied. Solution: connect with microswitch, with brake lever for switching. Rear indicator Head light Brake light Front indicator 26

27 Battery requirement & Lithium Battery usage Energy Source / storage Any energy storage device, must not exceed a nominal voltage of 48 VDC The energy storage device, must be installed outside of the driver s compartment. Nominal voltage of battery will be referred to battery specification. According to The circuit drawing must contain batteries, fuses, circuit breakers, power switchers, solar generator, power trackers, capacitors, motor-controller or chopper, motor(s) and junction cables. All components (including Battery) in the circuit drawing must be labelled with their detailed electrical specifications. 27

28 Battery requirement & Lithium Battery usage Take Lithium Ion Battery NCR18650B: Nominal voltage of battery is 3.6V. 28

29 Battery requirement & Lithium Battery usage If a Lithium-Ion battery is used, either as a propulsion or accessory battery, provide printed/written documentation on the BMS operation. BMS refer to Battery management system, Should protect the system against overvoltage, overcurrent, short-circuit, thermal overload and other abnormal operation of the said device without the need for power other than from the said device. 29

30 E-stop connection 30

31 Chassis Avoid: Angle bar Prefer: Steel pipes Importance: Corner brace: used for connect of construction elements 31

Helmet purchasing 5.2.3. Helmets Driver must wear a helmet when driving.

32 Helmet purchasing Helmets Driver must wear a helmet when driving. Only approved protective helmets are allowed for use, with the standard fulfilled, which is listed in regulation of Hong Kong legislation Schedule 1 Approved Protective Helmets of Cap374F Road Traffic (Safety Equipment) Regulations. The approved type of protective helmets should bear marking signifying compliance with the approved standards. 32

33 Inspiring Young Minds, striving for a Greener Hong Kong 新能源 STEM 世代 New Energy STEM Generation 2018 完 33

New Energy STEM Generation Rideable Solar Car Competition Technical Regulations 2018

New Energy STEM Generation Rideable Solar Car Competition Technical Regulations 2018 Document Control Release version 1.3 issued 6 September 2018 1.3 Team Managers briefing updated to 29 th September 2018