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Building an Electric Vehicle:Design Considerations
Throttle and Controllers
Configuration: 5 k ohm sealed pot without 3-terminal microswitch
Conection: 4 foot long, 2-wire unshielded, #22 AWG cable
Stroke: Spring-returned lever arm drilled for variable throw distances
Metal Parts: Corrosion-resistant stainless steel
Dimensions: 3.75" H X 4.00" W X 2.06" D
Configuration:
5 k ohm sealed pot with 3-terminal microswitch
Connectons: Potentiometer: 4 ft. long, 2-wire unshielded, #22 AWG cableMicroswitch: Three 0.188" X 0.018" tabs
Stroke: Spring-returned lever arm drilled for variable throw distances
Metal Parts: Corrosion-resistant stainless steel
Dimensions:
3.75" H X 4.00" W X 2.06" D
Throttle Controls
Included Controller
Amps Voltage range Peak Horse Power
RPM Kit price (motor and controller)
Alltrax DCX-300
300 A 24V - 48V 13 hp 3000 $1050
Alltrax DCX -400
400 A 24V - 48V 15 hp 3000 $1150
Alltrax DCX -500
500 A 24V - 48V 16 hp 3000 $1250
Alltrax DCX-600
600 A 24V - 48V 17 hp 3000 $1425
Sevcon PowerPak
425 A 60V - 84V 25 hp 4500 $1525
Controller
Controller (Programmable through Software)
Electric Motor
D&D SepEx motor -Separately Excited- Sepex motors are almost identical to traditional Series motors except for the way their field is wired and controlled. Unlike the Series motor who's armature and field windings are wired together in series, the SepEx motors field and armature windings are excited separately by special SepEx controllers that have wire leads to both the armature and the field. Separate control of the armature and field creates distinct advantages over a standard series wound motor, notably adjustable regenerative braking, higher rpm, longer power band, higher efficiency, and easy reversing.
A greater rpm range and higher top speed . Field weakening towards the SepEx motors top end allows for higher motor rpm which allows for a higher top speed on your vehicle.
Higher motor efficiently. The SepEx motor is more efficient than a series motor due to its more efficient use of the field.
Easy reversing. With a push of a button or flip of a switch The SepEx controller can easily change the direction of the motor by reversing the field.. making cumbersome, out-dated reversing contactors a thing of the past
Regenerative motor Braking This is one of my favorite features of the SepEx motor. The Sepex controllers can create very efficient and smooth regenerative braking on the motor by reversing the direction of the field and varying the reversed field's current. This essentially turns the motor into a generator while the vehicle is braking or coasting, and puts that generated power back into the batteries. The sensation feels like compression braking on an Internal Combustion Engine vehicle except smoother. Regenerative braking definitely makes an Electric motorcycle feel more like a motorcycle. Other benefits of regen braking, besides recharging the battery packand increasing range (if that wasn't enough), is that it makes steep hill descents easier to manage, as well as saving on brake pads and parts.
These motors are only sold as motor and controller kits, with matching tuned Sepex controllers from, either Alltrax Inc (USA) or Sevcon (England). D&D Sepex motor (USA) Dia. 6.7"........Length 11"........Weight 56Lbs.........Shaft dia. 7/8" W/ 3/16 Keyway
Electric Motor Mount
Batteries
Battery Charger
Braking
Gauges
Safety & Communications
Discussion PointsPOWER MANAGEMENT
Battery Charging
Regenerative Systems
Solar Cells
Gauges and Communications
VOIP
Video
Sensors
Display (Driver & Crew)
POWER SYSTEMS
Battery Types
Volts & Amps & HP
TRANSMISSION
Belts or Chains
SAFETY SYSTEMS
Gear
Switches
Power Indicators
Gel Batteries