Conventional Cruise Control: Notes
DESCRIPTION
The Cruise Control system is comprised of the following components:
| 1. | Refer to: ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . |
| 2. | Refer to: POWERTRAIN CONTROL MODULE (PCM) . |
| 3. | Refer to: BODY CONTROL MODULE (BCM) . |
| 4. | Refer to: INSTRUMENT PANEL CLUSTER (IPC) . |
| 5. | Refer to: STEERING COLUMN CONTROL MODULE (SCCM) . |
| 6. | Refer to: CRUISE CONTROL SWITCH (CSWC) MODULE - This is the speed control switch pod located on the right steering wheel spoke. |
| - | Refer to: CLUTCH POSITION SENSOR - Manual Transmission (MTX). |
| - | Refer to: TRANSMISSION CONTROL MODULE (TCM) - Integral to the Automatic Transmission (ATX). |
OPERATION
Cruise Control
- The driver of the vehicle presses any of the cruise control specific buttons.
- The cruise control switch transits the request over the Local Interface Network (LIN) bus to the SCCM.
- The SCCM transmits this information over the Controller Area Network Chassis (CAN C) bus to the PCM.
- The PCM manages the algorithm in order to keep the vehicle speed set by the driver.
Active Speed Limiter
Active Speed Limiter is a function that allows the driver to set the vehicle speed limit. This function is set by the driver by interfacing with the CSWC button interface. The limiter function is active when the speed of the vehicle is equal to the limitation set point designated by the driver. If the driver exceeds this designated set point, the driver will be warned through audio and visual messages on the IPC. The driver is able to override the limiter function by pressing the accelerator pedal to speed the vehicle beyond the designated set point.
It is important to note that any vehicle driving system utilizing active torque requests (such as braking, traction, or stability events) will take precedence over and inhibit the active speed limiter and cruise control functions. Active speed limiting and cruise control will operate again once the torque request has been honored.
Active speed limiter and Hill Descent Control (HDC) are mutually exclusive and can not be active at the same time.