Toyota Camry Hybrid AHV40 Manual page 411

BE-150
BODY ELECTRICAL - CRUISE CONTROL SYSTEM
3. System Control
General
The cruise control has the following control.
Control
Constant Speed
Control
Set Control
Low Speed Limit
Control
Deceleration
Control
Tap Down
Control
Acceleration
Control
Tap Up Control
RES Switch
Control
The THS ECU compares the actual vehicle speed with the set speed, and regulates
the drive force of the MG2 and the engine so that the actual vehicle speed and the
set speed will become equal.
While this system fulfils the following conditions, and the cruise control switch is
pressed to the SET/- side and released when the ON-OFF button on the cruise
control switch has been pressed to turn the system on, the THS ECU stores the
vehicle speed and maintains the vehicle constantly at that speed.
D The vehicle is running at a vehicle speed of about 25 mph (40 km/h) or more.
D While the shift lever is in position D.
The low speed limit is the lowest speed that cruise control can be set at and it is designed
to be approx. 25 mph (40 km/h). The cruise control cannot be set below that speed. If
the vehicle speed drops below that speed while running in the cruise control, the cruise
control will be cancelled automatically. However the set speed in the memory is kept.
While the cruise control switch is held to the SET/- side, the vehicle speed and the
set vehicle speed change as follows.
D The THS ECU regulates the drive force of the MG2 and the engine, and the
vehicle speed decreases.
D The set vehicle speed changes to the speed that the vehicle is traveling at when
the COAST switch is released.
When the cruise control switch is pushed momentarily (approx. 0.6 sec.) to the
SET/- side, the vehicle speed and the vehicle setting speed change as follows.
D The vehicle will decelerate in increments of approx. 1 mph (1.6 km/h) for each
time the switch was pressed.
D If the cruise control switch SET/- side is operated when the difference between
the actual vehicle speed and the vehicle setting speed is greater than 3.1 mph (5
km/h), the vehicle setting speed is changed to the same as the actual vehicle
speed when the switch is released.
D If the difference between the actual vehicle speed and the vehicle setting speed
is less than 3.1 mph (5 km/h), the vehicle setting speed does not change even if
the cruise control switch is operated.
When the cruise control switch is pushed to the RES/+ side and held, the vehicle
speed and the vehicle setting speed change as follows.
D The THS ECU regulates the drive force of the MG2 and the engine, and the
vehicle speed increases.
D The set vehicle speed changes to the speed as which the switch is releases.
When the cruise control switch is pushed momentarily (approx. 0.6 sec.) to the
RES/+ side, the vehicle speed and the vehicle setting speed change as follows.
D The vehicle accelerates in increments of approx. 1 mph (1.6 km/h) for each time
the switch was pressed.
D However, if the difference between the actual vehicle speed and the vehicle setting
speed is greater than 3.1 mph (5 km/h), the vehicle setting speed does not change.
If cruise control is canceled for any reason other than a malfunction or main switch
operation and vehicle speed is more than the low speed limit, the vehicle speed is
returned to the speed before the cancellation of cruise operation by setting the cruise
control switch to the RES/+ side. The cruise control mode can be resumed even if
the vehicle speed drops below the low speed limit, because the speed in the memory
is not cleared.
Outline
(Continued)