Hybrid Book - Chapter 11

1. A Toyota Prius uses ___ to connect battery modules.

Busbars

Cables

Welded tabs

Looped membranes

2. The battery-pack controller monitors the voltage of each battery module, or pair of battery modules, as one of the inputs to determine the ___.

State-of-charge

Power inverter resistance

Current-sensor learn cycle

Propulsion system torque level

3. The two categories of battery-pack thermal (cooling) systems are ___.

Open and closed flow

Forward and reverse flow

Passive and active

Over and under airflow

4. The braided shielding around each high-voltage cable is used to eliminate or reduce the effects of ___.

ESD

RFI

PWM

EMI

5. The typical HEV high-voltage fuse rating is approximately ___ A.

100

200

500

1,000

6. If the precharge process fails, the high-voltage system will ___.

Charge the battery pack

Disable propulsion

Enable limp-home mode

Discharge the battery pack

7. During regenerative braking, the controller recovers energy that was lost during ___.

Coasting

Acceleration

Braking

Cornering

8. To monitor the temperature of battery-pack modules, thermistor sensors are placed or mounted ___.

In front of the cooling fan

Behind the cooling fan

On or in critical battery modules

At each end of the battery pack

9. The primary reason for the precharge system is to protect the ___.

Power inverter transistors

Bus capacitors

Battery-pack controller

DC-DC converter transformer

10. In most manufacturer systems, the high-voltage fuse is located in the ___.

Power inverter

Manual or service disconnect

Battery pack

DC-DC converter