Make: EV

why are you here?

Hybrid VehiclesTHE BEGINNING.

Electric VehiclesTHE CRAZE.

SE-3 Patroller by Segway

Convertible E- Bike

Bikes or Cars?What’s your favourite?

Mission Motors | Mission R | 14kWh | 141 HP | 160+ mph

Rimac | Concept_one Model S P85D | 762 hp | 0 to 60mph in 2.8s

EeVeeTHE TECH.

MOTORS

Basics

AC Motors

Hub Motors

DriveTrain

Motor Control

Motors: Basics.

Fleming’s Left Hand Rule!

AC Motors

Hub Motors

Motors: Drivetrain.

Motors: Drivetrain.Tank to Wheel-

Motor Efficiency - 90% Inverter Efficiency - 95% (DC to AC conversion) Battery Leakage - 90% Charging Efficiency - 95%

Actual Battery - 80% & Charger Eff

Overall - 70%

Well to Wheel-

Generator Efficiency - 50% Power line Efficiency - 95% T2W Efficiency - 70%

Overall 33%

Gasoline T2W - 16% W2W - 14%

Motors: Control.

BATTERY

Basics

Li-ion

BMS

Charging Systems

Battery: Basics.

Battery: BMS

Cell Protection

Charge Control

Demand Management

SOC

SOH

Cell Balancing

CONTROLS

Basics

CU

CAN Protocol

Motor Control

Controls: Basics.Component Feedback Signal

Electric Motor(s) - Winding temperature - Rotor Speed (RPM)

Battery - Voltage - Output Current - Temperature

Motor Controller - Current (and direction of current) - Voltage - Temperature

- Leakage Current

Accelerator Pedal - Voltage as a function of pedal position - Shift Selector FWD/REV

- Range Selection

CAN Bus The physical layer uses differential transmission on a twisted pair wire.

A non-destructive bit-wise arbitration is used to control access to the bus.

The messages are small (at most eight data bytes) and are protected by a checksum.

There is no explicit address in the messages, instead, each message carries a numeric value which controls its priority on the bus.

An elaborate error handling scheme that results in retransmitted messages when they are not properly received.

There are effective means for isolating faults and removing faulty nodes from the bus.

Design.CONCEPTS

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