IPM Speed and Curve Assist

Gen5Cas DM Ch 11.03.02

Warning: Drivers are responsible for safe and alert vehicle operation, including during the use of cruise control and the IPM application. Failure to use normal braking techniques when IPM is active could result in personal injury and vehicle damage.

Important: Speed and Curve Assist pulls information from speed limit data in the 3D digital map database. Use caution and be aware of posted speed limits, as Speed and Curve Assist may not reflect new changes made to roads.

Speed and Curve Assist is not designed to operate in bad weather, construction zones, or around hazard vehicles.

Note: If Adaptive Cruise Control (ACC) is not engaged, Speed and Curve Assist will not function. IPM will remain functional. ACC will remain functional if IPM is not engaged.

Speed and Curve Assist is an additional feature of the IPM application, which aids in keeping the vehicle in cruise control longer. With Speed and Curve Assist, IPM can also adjust cruise control speeds for:

corners,
roundabouts,
speed limits,
stop signs,
yield signs,
and downhill driving.

If the vehicle is approaching a corner or roundabout while the IPM application is active, Speed and Curve Assist analyzes vehicle information (such as weight and trailer attachment) and information about the radius of turn to then use the brake systems, predictive shifting, and coasting to adjust the cruise speed and comfortably move through the detected corner. The minimum speed for Speed and Curve Assist to operate is 9 mph (14 km/h).

Important: Corners or roundabouts may require driving that is slower than 9 mph (14 km/h). Exercise caution in these corner maneuvers, as Speed and Curve Assist may not work due to low speeds.

Speed and Curve Assist adjusts cruise control speeds to comply with speed limits by pulling information from speed limit map data in the 3D digital map database.

Important: Drivers should always be aware of and obey school zone speeds and hours. IPM does not observe school zone hours or flashing school zone lights and will follow school zone speeds recorded in the 3D digital map database. IPM is not a replacement for conscientious driving.

Speed and Curve Assist uses information from the 3D digital map database and the tilt sensor in the DT12 transmission to determine which gear to shift into to slow down on a descending grade.

Speed and Curve Assist automatically engages when IPM is activated, using the standard cruise control buttons. It disengages when IPM is deactivated (either by using the accelerator pedal or turning off cruise control). As a part of IPM, Speed and Curve Assist is not active in the event of a problem with IPM, or when driving on a road with no profile information available, but conventional cruise control is still available.

During downhill driving, Speed and Curve assist puts the vehicle in a lower gear to use mostly engine brakes when going down a grade. While driving on shorter down grades, the system may use service breaks instead of downshifting. The system does not use service brakes for these events if the brake temperatures are too high; it downshifts and uses engine brakes.

Note:

5th Generation Cascadia Driver's Manual

IPM Speed and Curve Assist