Human Electric Trike Thesis

Design of an electrically assisted human powered trike

City-el

Posted by Bob Dold on Saturday, June 3, 2006 9:55 PM

Overview:

Number of seats

1+1

Maximum speed

50

km/h

32

mph
Range

30-50

km

19-32

miles
Price approx..

12

TDM

9000

dollars

Technical details:

Road performances and consumption:

Consumption

4-10

kWh/100 km
Max. climbing performance

16

%

Battery:

Number of batteries

3

Piece
Total voltage

36

V
Capacity [ ah ]

90/100

Ah C5
Battery manufacturer 90Ah

Yuasa

Trojan 30XHS AP
Battery manufacturer 100Ah

Versch.

Motor:

Rated output

2,5

KW S2 3.35 hp
Maximum performance

3,5

KW 4.69 hp
Rated voltage

36

V
Rated current

90

A
Max. torque approx..

70

Nm

 51

Ft-lbs
Type

GS/Comp

Manufacturer

Thrige titan

Type

TTL 140B

Cooling

Air

Motor control:

Type

Pulse Width

Modulation
Rated voltage

36

V
Rated current

275

A
Working frequency

15

KHz
Manufacturer

Curtis

Type

1204X

Power transmission:

Number of transmission steps

1

Speed ratio approx..

7,2:1

Transfer

Poly V belt

Battery charger

Type
Rated output W
Charging time to 75 %

3

Std
Charging time to 100 %

8-9

Std

Mass and weights:

Length

2741

mm

9

Ft
Width

1060

mm

42

in
Height (hood closed)

1260

mm

49.61

in
Height (hood open)

2380

mm

94

in
Wheel base

1810

mm

71

in
Track width

930

mm

36.61

in
Turning circle

8550

mm

28

ft
Ground Clearance

120

mm

4.72

inches
Unloaded weight

290

Kg

640

lbs
Additional load

110

Kg

242

lbs
Admissible total weight

400

Kg

882

lbs

Tire:

Type

80/70 -16

Manufacturer

Continental

Brakes:

Type

3

Drum
Operation

Hydraulically

Brake circuits

2

in front/in the back

Heating:

Type

Electrical

Amount of heat

400+400

W
Blower

2

Levels

Configuration:

  • Heater/Defroster
  • Glass sliding roof
  • Two outside mirrors
  • H4 55/60W main headlight
  • Windshield wiper and washer

Safety configuration:

  • Three point inertia reel belt
  • Roll bar
  • Laminated glass windshield
  • Safety glass side windows
  • Energy absorbing body

Options:

  • Radio console
  • Loudspeaker installation console for roll bars
  • Lap belt for protecting a child seat
  • H-belt for child of 3-9 years + backrest for child
  • Ashtray (Pfui!)
  • Battery heating
  • Soil mat

Body:

Plastic sandwich structure self-supporting

PURELY foam with PMMA+ABS bowl

City-El Driving resistances


Marco Reichel, a fellow " el " driver, has worked out a program for driving resistances, here the results.

Input data:

Mass 400 kg
Rolling friction number: 0,01
Air resistance number: 0,3
Frontal Area: 1 m²
Wheel diameter: 0,52 m

Required power at the wheel in Watts as a function of speed with different gradients

km/h

Ebene

5 %

10%

15%

20%

10

113

658

1203

1748

2293

20

248

1338

2428

3518

4608

30

428

2063

3698

5333

6968

40

675

2855

5035

7215

9395

50

1013

3738

6463

9188

11913

60

1462

4732

8002

11272

14542

70

2046

5861

9676

13491

17306

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