Ford Taurus, Руководство пользователя

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CRUISE CONTROL
General Description and Operation
The Integrated Vehicle Speed Control (IVSC) system consists of operator controls,
servo (throttle actuator), brake light switch, speed sensor (not required for
vehicles equipped with an electronic cluster), horn relay, vacuum dump valve,
vacuum reservoir (called an aspirator on some models), check valve(s), wiring
and hoses for vacuum. The vacuum reservoir or aspirator provides an additional
vacuum signal when the engine is under heavy load to improve speed control
performance. In the IVSC system, speed control amplifier assembly function has
been integrated into the EEC-IV Electronic Control Assembly (ECA). The servo
assembly is mounted in the engine compartment and is connected to the throttle
linkage with an actuator cable. The servo is connected to the vacuum reservoir
(aspirator) and to manifold vacuum through the check valve. The speed control
sensor is located on the transmission or transaxle.
For the system to be activated, the engine must be running and the vehicle must
be greater than approximately 25-35 mph (40-56 km/h), depending upon vehicle
application. Under these conditions, the system is activated and is ready to accept
a set speed signal by pressing the ON switch in the steering wheel. Then, the
operator must depress and release the SET ACCEL switch. This will result in the
current speed being maintained until a new speed is set by the operator, the
brake pedal is depressed, the clutch pedal is depressed or the OFF switch is
depressed.
To decrease the set speed, the vehicle speed may by reduced by applying the
brake or clutch pedal and then resetting the speed using the foregoing method or
by depressing the COAST switch. When the vehicle has slowed to the desired
speed, the COAST switch is released and the new speed is set automatically. If
the vehicle speed is reduced below approximately 25-35 mph (40-60 km/h),
depending upon vehicle application, the operator must manually increase the
speed and reset the system.
To increase the set speed, the vehicle set speed may be manually increased at
any time by depressing the accelerator until the higher speed is reached and
stabilized, then depressing and releasing the SET ACCEL button. Speed may also
be increased by depressing the SET ACCEL switch button, at speeds over
approximately 25-35 mph (40-56 km/h), depending upon vehicle application, and
holding it in that position. The vehicle will then automatically increase speed.
When the desired rate of speed is attained and the button is released, that new
set speed will be maintained.
The speed control system may be deactivated by depressing the brake or clutch
pedal. To resume the set speed prior to deactivation, the RESUME switch is
depressed and prior set speed may be re-established. The RESUME switch is
hinged on the side closest to the SET ACCEL switch. Therefore, it should be
depressed on the side farthest from the SET ACCEL switch. The resume feature
will not function if the system is deactivated with the OFF switch, or if the vehicle
speed has been reduced to below approximately 25-35 mph (40-56 km/h)
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18.11.2005 http://www.chiltondiy.com/content/8687/8687_6_5.html