Chap 25: Understanding and Servicing Electronic Control Systems

Technician A says that the processing function of electronic control systems is in an electronic control unit. Technician B says that the processing function of electronic control systems is in the actuators. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• .Neither Technician A nor Technician B

Technician B says that an EFC is an input. Technician A says that an EFC is an output. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says SAE and ISO standards apply to vehicle electronics. Technician B says that these standards are intended to prevent catastrophic failures. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says microcontrollers can exchange information through any port. Technician B says this happens on at least one pin of the controller. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says that PID tuning is a process performed by calibration engineers on instrumented systems. Technician B says that integral feedback control is a process performed by calibration engineers on instrumented systems where the algorithms are adjusted under experimental conditions. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

__________ are uncontrolled outside factors influencing a process that interfere with a control system task.

• Pressures

• Disturbances

• Stray voltages

• Oscillations

Which of these is the change that takes place between the input error signal and output signal?

• Set-point

• Proportional-integral-derivative

• Controller gain

• Integral feedback control

__________ are mathematical shortcuts used by an ECU controller to provide answers to complex questions.

• ECM processes

• Look-up tables

• Calibrations

• Rail pressure measurements

The term interpolation is best described as __________.

• Transferring data from one ECU to another

• Flashing an ECU

• Estimating data at a point between two other data points

• Estimating data at two points and broadcasting the results

__________ observers that predict shift schedules are engine torque output and driver torque demand.

• Transmission state

• Reduced-order

• Torque

• Luenberger