Electric Vehicle (EV) Drive Train Alternatives

Front

What is shown in Figure 3a of the EV configurations?

Back

A single EM configuration with gearbox (GB) and a clutch (C), consisting of an EM, a clutch, a gearbox, and a differential (D).

Front

What is the function of the clutch in the EV configuration?

Back

The clutch enables the connection or disconnection of power flow from the EM to the wheels.

Front

What does the gearbox consist of in the EV configuration?

Back

A set of gears with different gear ratios.

Front

How does the use of clutch and gearbox affect the torque to the wheels?

Back

The driver can shift the gear ratios, changing the torque going to the wheels.

Front

What are the characteristics of wheels in lower gears versus higher gears?

Back

High torque low speed in lower gears and high speed low torque in higher gears.

Front

What is the advantage of the single EM configuration without the gearbox and clutch shown in Figure 3b?

Back

The weight of the transmission is reduced.

Front

What is a disadvantage of the single EM configuration without gearbox and clutch?

Back

It demands a more complex control of the EM to provide the necessary torque to the wheels.

Front

Describe the configuration shown in Figure 3c.

Back

A transverse front EM front wheel drive configuration with fixed gearing and differential integrated into a single assembly.

Front

What is the purpose of the dual motor configuration shown in Figure 3d?

Back

To electronically provide the differential action of an EV when cornering using two electric motors.

Front

What is the in-wheel drive configuration?

Back

A configuration where the EM can be placed inside a wheel to shorten the mechanical transmission path from the EM to the driving wheel.