Description And Operation

DESCRIPTION 

Courtesy of CHRYSLER GROUP, LLC

The Central Vision Processing Module (CVPM) (1) generates the view in the Surround View Camera (SVC) system display according to inputs received from the four external cameras and driver touch screen inputs via a Low Voltage Differential Signal (LVDS) coaxial cable. The CVPM combines the video feeds together and outputs it to the display screen. The CVPM on this model processes four cameras.

The wiring harness (2) connector to the CVPM includes the power and the video feed connections. The CVPM video feed connections are as follows:

• Green - Front Camera.
• Brown - Right Mirror Camera.
• Orange - Rear Camera.
• Beige - Left Mirror Camera.
• Violet - Digital Output to Display.

The CVPM is located in the instrument panel behind the glove box in front of the passenger airbag.

OPERATION 

For additional information on the SVC system functionality. Refer to SURROUND VIEW CAMERA SYSTEM, DESCRIPTION AND OPERATION .

The CVPM receives:

• Power from a fuse protected relay within the interior Power Distribution Center (PDC).
• Signals from all four cameras.
• The reverse gear status.
• The steering angle signal.
• The vehicle speed signal.
• The door ajar switch status for all 4 doors and the tailgate.

The CVPM uses these signals to process and determine dynamic grid line images. The CVPM uses the Controller Area Network-Interior High Speed (CAN-IHS) to send each of the images to the radio for display.

Inputs

• Acquisition on the CAN-IHS bus of the driver door ajar signal.
• Acquisition on the CAN-IHS bus of the passenger door ajar signal.
• Acquisition on the CAN-IHS bus of the left rear door ajar signal.
• Acquisition on the CAN-IHS bus of the right rear door ajar signal.
• Acquisition on the CAN-IHS bus of the trunk/tailgate ajar signal.
• Acquisition on the CAN-IHS bus of the front left park assist alert signal.
• Acquisition on the CAN-IHS bus of the front center park assist alert signal.
• Acquisition on the CAN-IHS bus of the front right park assist alert signal.
• Acquisition on internal signal Top+Rear when user select Top + Rear soft button.
• Acquisition on internal signal Top+Front when user select Top + Front soft button.
• Acquisition on internal signal Rear Crosspath when user select Rear Crosspath soft button.
• Acquisition on internal signal Front Crosspath when user select Front Crosspath soft button.
• Acquisition on internal signal R only when user press "R Only" soft button in SVC screen.
• Acquisition on internal signal CVPM button press When user press Image defeat on the Radio screen.
• Acquisition on internal signal CVPM button press Not Pressed when user do not press Image defeat on the Radio screen.
• Acquisition on internal signal CVPM zoom When press Zoom button on the Radio screen.
• Acquisition on CAN-IHS bus signal for air suspension control module present/not present status.
• Configuration of the surround view camera image based on the driver DYNAMIC GRIDLINES ON/OFF personalization selection.
• Processing of the camera images: Distortion Correction, Projection Transformations.
• Blend and Stitch the adjacent camera images together resulting in the surround view camera image.
• Overlay a stylized vehicle (including corresponding doors/tailgate open/closed state) on the image relative to the camera view. All combinations of the doors and tailgate open/closed states shall be capable of being displayed.
• Overlay soft buttons for selection and display of the default view or other customer-selectable views.
• Map touch screen coordinates sent by the Radio to the soft buttons overlays and their associated functionality.
• Store and recall dynamic gridline ON/OFF state information over the ignition cycle.

Outputs

• Transmission on the CAN-IHS bus of the SVC image personalization selection signal to the Radio to indicate gridline personalization selected by the driver.
• Transmission on the CAN-IHS bus of the SVC image defeat signal to the Radio-to-switch head unit and then back to the non-camera display operation.
• Transmits a video output signal to the Radio.
• Transmission on the CAN-IHS bus of the display view status.