lateral distance between the longitudinal centerlines of a subject vehicle (SV) and a target vehicle (TV), measured as a percentage of the width of the SV, such that if the centers of the two vehicles are aligned, the value is zero

point of the curved road ahead where the distances from the subject vehicle to the curved roads are less than the look ahead distance, SLAD

particular curvature point of interest on the roadway of the subject vehicle that CSWS is about to provide the warning to the driver

NOTE 1 to entry CSWS selects the target curvature point of interest among the curvature points of interest and the curvature point of interest may vary depending upon the distance from the current location of the subject vehicle to the curvature point of interest and the current speed of the subject vehicle. If a section of the curved road has a constant radius of the curvature, the curve start point becomes the target point of interest.

time needed for a vehicle approaching the intersection at a speed of v to travel the distance, X, from its current location to the stop line

curve detection range of the CSWS

NOTE 1 to entry For the curvature points that have radius of curvature ≤RC and the distances from the subject vehicle to the curved roads are < SLAD, the curvature point is considered to be a curvature point of interest.

maximum speed the LSF system can attain while in following control

NOTE 1 to entry LKAS is not required to function if the speed is larger than vmax.

time when the curve speed warning starts which is greater than or equal to the minimum allowed curve speed warning time tcsw ≥ tcsw_min

NOTE 1 to entry The tCSW, Swarn, and Vcurrent has the following relationship: tcsw = Swarn /Vcurrent

NOTE 2 to entry The value of tCSW is selected by the manufacturer.

requirement up to which maximum speed APS shall be able to search the environment for suitable parking slots

deceleration that, if constant, would enable the subject vehicle to match the warning threshold speed for the target curvature point of interest

minimum speed the LSF system can maintain while in following control

NOTE 1 to entry LKAS is not required to funcion if the vehicle speed is less than vmin.

the minimum subject vehicle (SV) speed for which FVCMS must be capable of activating a countermeasure

area where PVOI and TV may exist and affect CACC system control operations

distance from the forward vehicle's trailing surface to the subject vehicle's leading surface

the minimum deceleration that, if constant, would enable the subject vehicle to match the path velocity of the target vehicle without contacting the target vehicle and thus prevent a collision

NOTE Consideration of the target vehicle deceleration DTV is optional. When not used, it shall take a value of zero.

average distance between the front of one vehicle and another in a continuous traffic flow

NOTE This parameter is inversely proportional to the density of traffic.

input device that can be carried into, or in near proximity of, a vehicle and connected as desired

EXAMPLE A smartphone connected to a vehicle (via USB or Bluetooth) to provide driver navigation on the vehicle's large screen display

NOTE 1 to entry NDs are often more closely associated with a person than they are with the vehicle.

NOTE 2 to entry Nomadic input devices do not require a maintenance operation to connect or disconnect.

the adjacent zones are the zones to the left and right of the subject vehicle

NOTE 1 to entry Note that the adjacent zones are intended to cover the lanes adjacent to the subject vehicle. However, the position and size of the adjacent zones are defined with respect to the subject vehicle, and are independent of any lane markings.

distance travelled by a vehicle from the time the driver judged what action to take until the time the brake is applied after having been notified of a traffic impediment

the subject vehicle’s overtaking speed is defined as the difference between the subject vehicle’s speed and the target vehicle’s speed when the subject vehicle is overtaking the target vehicle

NOTE A positive overtaking speed indicates that the subject vehicle is moving faster than the target vehicle.

component of subject vehicle’s approach velocity at a right angle to the lane boundary

specific three-dimensional   around the vehicle, which is divided into rear and front corner m.r., front, rear-1 and rear-2 m.r

NOTE The covered monitoring ranges depend on the intended use of the system.

angle between the straight-ahead position and the current position (heading) of the wheels relative to the longitudinal axis of the vehicle

distance travelled by a vehicle until the driver judges what action is to be taken after having received information about a traffic impediment

input device designed to be electronically connected to a vehicle even when the vehicle is not in close proximity

the rear clearance of a target vehicle is defined as the distance between the rear of the subject vehicle and the front of the target vehicle as measured along a straight line, or optionally, as estimated along the target vehicle’s estimated path

NOTE This definition applies to target vehicles in the rear zones only.

input device designed to be physically connected to a vehicle and to remain connected even when the vehicle is not in use

NOTE 1 to entry Built-in input devices include devices that can be temporarily disconnected for security reasons (e.g. some radios are equipped with detachable front panels).

NOTE 2 to entry Built-in input devices are typically considered to be a part of the vehicle.

NOTE 3 to entry Built-in input devices require a maintenance operation to connect or disconnect.

travel time from the current position of the subject vehicle to the curvature point of interest and defined as follows tSV = Scurrent/Vcurrent where Vcurrent is the current speed of the subject vehicle