Solution K68033394
Wednesday, December 4, 2019 9:49:45 PM CET

CBr

** SOLUTION **

Title Volvo Chassis - Volvo Fusion 2 Collision Warning System Information

Mack Models

AN - Anthem , GR - Granite , PI - Pinnacle

Volvo Model

Cause Limited information found in Trucks Dealer Portal ( TDP ).

Solution Collision warning system

Collision warning system

Impact Meta Data
Valid From 28.06.2019
Valid To 01.01.2099
PD string VN

Collision warning with emergency brake function

description
Component location Overview
1 Instrument cluster
2 Control unit VECU (Vehicle Electronic Control Unit)
3 Control unit LCM (Light Control Module)
4 Control unit ABS (Antilock Braking System)
5 Forward looking camera
6 Safety direct processor
7 Forward looking radar

Function

The Collision warning with emergency brake (CW-EB), automatically detects a probable

forward collision and provides a warning to the driver as well as activates the vehicle
braking system to decelerate the vehicle. The purpose of the deceleration is to avoid or
mitigate the severity of a collision in the event that the driver does not respond to the

warning.

* The Collision warning with emergency brake (CW-EB) shall be activated when
vehicle speed is above 15km/h.

© The function can be activated/deactivated using an CW-EB switch situated on
the dashboard.

© The driver can, at any time during operative action performed by the CW-EB
system (during the warning and emergency braking phases), take control and
override the system with a conscious action, A kick-down action will interrupt an
ongoing emergency brake.

Function description

Forward looking camera
‘The camera is a visible light spectrum camera mounted near the top and center of the
windshield of the vehicle.

‘The system supplies feedback to the driver during lane departure warning incidents
using audible alerts, The camera supplies supplemental visual data that along with the
radar sensor which helps the system generate data about the traffic and environment
around the

The bendix wingman fusion camera has been developed to recognize license motorized
vehicles and may not be able to consistently recognize other objects (such as certain
trailers and non-motorized vehicles). This will impact the system’s ability to apply the

enhanced CMT function as well as stationary vehicle braking.

Control unit - Brakes
Brake controller located in the cab of the vehicle controls the antilock braking and full
stability functions for the vehicle, using a set of wheel speed, yaw,stecring and load
sensors. In system the controller also manages actions requested by the forward looking

radar.

Safety direct processor (Only if the vehicle was ordered with data capture)
If the customer chooses the Data Capture option, a safety direct processor will be located
close to the camera in the cab of the vehicle typically in an over the windshield
compartment, The SDP collects, stores, and transmits data via on board computers
(OBC). Additionally, the SDP will capture video from triggering events. The data and
video is available through the Safety direct web portal.

Forward looking radar

A radar is located at the front of the vehicle on the bumper or just behind on a cross.
member. The radar sensor is pre-aligned at the factory and no adjustment is required,
unless the bumper or mounting cross-member is damaged /replaced, in this case the

radar has to be aligned.

Automatic Emergency Braking (AEB)

Reduced risk for frontal collisions, Collision mitigation on stationary and moving
vehicles Increased retardation performance to max 6m/s* to allow for up to SOmph
vehicle deceleration depending on vehicle and road conditions.

(1) Stationary forward vehicle resulting in Automatic Emergency Braking (AEB)
application.

(2) Rapid approach to a slow moving forward vehicle resulting in Automatic
Emergency Braking (AEB) application.

(3) Rapidly decelerating forward vehicle resulting in Automatic Emergency Braking
(AEB) application.

Multi-tane continuation of Automatic Emergency Braking (AEB)
If braking due to a vehicle in the same lane ahead and the driver changes to an adjacent
lane, the system shall continue to apply the brakes if another vehicle is detected.

(1) Evasive manuever to adjacent lane with lower speed or stationary vehicle in that
adjacent lane.

(2) Evasive manuever to adjacent lane with lower speed vehicle transitioning to that
adjacent lane.

(3) Evasive manuever with multiple Adjacent Lanes Blocked by stationary vehicles.

Collision warning function scenario
Function scenario
Collision warning with emergency braking

The forward collision warning function warns the driver when a vehicle appears in front

of the vehicle and becomes a potential threat. This is achieved by measuring the distance
to the object infront and calculating the time to a potential collision, Based on this
information, the forward collision warning warns the driver to take action by emitting an
audio warning and flashing a telltale. The emergency braking function reduces the
severity of a forward collision and tries to avoid it. By collecting and processing
information on distance and motion of an obstacle, vehicle speed, drive commands and
driver actions, emergency braking determines if the obstacle ahead presents a threat. Ifa
collision is calculated as unavoidable without immediate action on the brakes from the
driver, emergency braking will activate the brakes to reduce the force of the impact or
try to avoid the collision.

The system only takes into account vehicles ahead that are driving in the same direction
in the same and adjacent lanes, not oncoming traffic.

Braking lightly will not affect the emergency braking, while forceful braking will (if
possible) increase the braking effect.

The driver will receive warnings before a collision becomes unavoidable; these
warnings are handled by the forward collision warning function.

Any modifications to the area in front of the sensor may not guarantee the correct
function of the system.

Depress the accelerator pedal beyond the kick down point to stop unwanted emergency
braking.

The system is deactivated after three incidents of full braking. The function can be
reactivated at the next key cycle.

After a collision or minor impact that could have affected the area around the sensor,
visit an authorized workshop to ensure full function and correct setting of the sensor.

Scenario
‘The FLR (B82A) indicates a rapidly decreasing distance to an obstacle ahead that is