Ford Ranger EV. Electric Manual - part 12

LESSON 1: VEHICLE OVERVIEW

1-45

INERTIA SHUTOFF SWITCH

ER031-A

Inertia Shutoff Switch Location

•

The inertia shutoff switch (arrow) is located above the carpet line

and below the evaporator assembly on the passenger side of the

vehicle.

•

The inertia shutoff switch on the Electric Ranger performs a similar

function as the inertia shutoff switch on the gasoline-powered

Ranger.

– On both vehicles, the inertia shutoff switch disables the vehicle

powertrain in the case of an accident.

– On the gasoline-powered Ranger, the inertia shutoff switch

disables the fuel pump.

– On the Electric Ranger, the inertia shutoff switch interrupts the

high voltage power to the vehicle systems.

•

The POWER RESET lamp illuminates whenever the inertia shutoff

switch is triggered.

– The reset button is located on top of the inertia shutoff switch.

Emergency Power Off (EPO)

•

The EPO is a fail-safe system designed to safeguard against

personal injury and prevent vehicle damage.

•

EPO is activated when the inertia shutoff switch is triggered or a

high voltage interlock is disconnected.

– An EPO signal is sent to disable all high voltage loads and shut

down the vehicle.

– TIM, BCM, and IAA can initiate an EPO signal.

LESSON 1: VEHICLE OVERVIEW

1-46

CURRENT LEAKAGE DETECTION

Current Leakage Detection

•

The Electric Ranger uses a current leakage detection system to

monitor the integrity of the electrical system.

•

The BCM monitors the high voltage system for current leakage by

checking the DC circuitry for a low impedance path.

•

Current leakage detection is performed by relays, leakage current

shunts and current limiting resistors within the BCM.

•

This internal circuitry interfaces with either terminal of the traction

battery to measure impedance path between the terminal and the

vehicle chassis.

•

If the BCM detects severe leakage, the electric hazard warning

lamp in the instrument cluster will illuminate.

NOTE: If the electric hazard warning lamp remains illuminated after

lamp prove out, service the vehicle.

LESSON 1: VEHICLE OVERVIEW

1-47

SUSPENSION SYSTEM

Rear Suspension Components

•

The rear suspension system is designed specifically for the Electric

Ranger.

•

The DeDion rear axle (B) consists of:

– a thick-walled aluminum tube.

– sand-cast aluminum ends with Bearing carriers and spring seats.

– aluminum ends that are welded to the aluminum tube.

•

The rear axle utilizes a Watts linkage (A) for handling and control.

•

The rear shock absorbers and jounce bumper brackets are unique.

•

Composite single-rate leaf springs are used for weight reduction.

•

Carryover Ranger spring mounts and shackles are used.

Front Suspension System

•

The front suspension consists of Ranger 4x4 control arms and

modified Explorer 4x2 steering knuckle and spindle assemblies.

•

A unique stabilizer bar is tuned for proper roll stiffness.

•

Unique torsion bars and shock absorbers attach to carryover

Ranger mounts.

LESSON 1: VEHICLE OVERVIEW

1-48

TRACTION BATTERY CHARGING COMPONENTS

Power Control Station (PCS)

Power Control Station (PCS)

•

The Electric Ranger’s traction battery is charged by an off-board

power control station (PCS).

•

The PCS requires 240-volt 40 amp AC service.

•

When connection is made from the PCS to the vehicle:

– self test and vehicle confirmation tests are initiated.

– if the system is operational, the green charging light will

illuminate on the PCS.

– the green charging light indicates the self test and the vehicle

confirmation tests are compete and charging has begun.

– the charger fans will start cooling the on-vehicle charger

approximately four minutes after the charging light illuminates

steadily.

ER036-A