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8 VEHICLE MOTION CONTROL
Quiz for Chapter 8
1. A typical cruise control system 6. In the example digital cruise
senses the difference between control system of this chapter,
a. vehicle speed and tire speed the vehicle speed sensor
b. set speed and actual vehicle a. counts pulses of light at a
speed frequency that is proportional
c. engine angular speed and to vehicle speed
wheel speed b. generates an analog signal
d. none of the above c. measures crankshaft rotation
speed directly
2. A cruise control system controls
vehicle speed using d. none of the above
a. a feedback carburetor 7. One advantage of a digital
b. a distributorless ignition motion control system is
system a. the ability to work with
c. a throttle actuator analog signals
d. an MAF sensor b. the stability of operation with
respect to environmental
3. One of the major drawbacks to a
extremes
proportional controller is
c. the exclusive ability to
a. steady-state error
generate integrals of the error
b. integral of the error signal
c. gain error
d. all of the above d. all of the above
8. A practical tire-slip controller
4. A critically damped system has a
is based on measurement of
response to a step input that
a. wheel speed
a. has overshoot
b. rises smoothly to the final b. vehicle speed
c. both of the above
value with no overshoot
d. neither of the above
c. can only be achieved with a
proportional control system 9. An ideal antilock braking system
d. is the slowest of all possible measures skid by
responses a. measuring the difference
between wheel speed and
5. A digital cruise control system
a. operates on samples of the vehicle speed
error signal b. differentiating vehicle speed
b. computes a control signal with respect to time
c. measuring crankshaft angular
numerically
c. obtains a digital measurement speed
of vehicle speed d. none of the above
d. all of the above
294 UNDERSTANDING AUTOMOTIVE ELECTRONICS
