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DDEC VI ELECTRONIC CONTROLS APPLICATION AND INSTALLATION
5.22.5
INSTALLATION INFORMATION
A Vehicle Speed Sensor (VSS) must be installed. It must be enabled, and all proper calculations
entered into the ECU with DRS, DDDL 7.0, or VEPS. Refer to section 3.6.6, "Vehicle Speed
Sensor," for additional information.
The Spec Manager program should be utilized to determine maximum vehicle speed for low range
#1 and #2. If the maximum engine speed and maximum vehicle speed coincide, the Progressive
Shift logic may not correctly compensate faster or slower on either side of the maximum vehicle
speed. Spec Manager can alert the programmer to this dilemma and advise accordingly on
maximum vehicle speed set points.
Example:
If the maximum vehicle speed #1 was 12 MPH (approximately 19.5 kmh), the
Progressive Shift logic may not determine if the maximum engine speed is 1400 or 1600 RPM.
Spec Manager would advise moving the maximum vehicle speed #1 plus or minus 2 MPH
(approximately 3.2 kmh) to eliminate any possible confusion.
5.22.6
PROGRAMMING FLEXIBILITY
Enabling all areas required for Progressive Shift can be performed with DDDL 7.0, VEPS, or
DRS.
The Progressive Shift option has two sets of low gear and one set of high gear parameters as
listed in Table 5-70.
Parameter
Group
Parameter
Description
Range
Default
23
Progressive Shift
Enable
Indicates the enabled/dis-
abled status of the progres-
sive shift feature.
0 = Disabled
1 = Enabled
0 = Disabled
23
PS Low Gear 1 Max
Vehicle Spd
Sets the low gear #1 turn off
speed.
0–250 km/h
19.3 km/h
23
PS Low Gear 1
RPM Limit
Sets the low gear #1 RPM
limit.
0–4000 RPM
1400 RPM
23
PS Low Gear 1 Max
RPM Limit
Sets the low gear #1
maximum RPM limit.
0–4000 RPM
1800 RPM
23
PS Low Gear 2 Max
Vehicle Spd
Sets the low gear #2 turn off
speed.
0–250 km/h
43.5 km/h
23
PS Low Gear 2
RPM Limit
Sets the low gear #2 RPM
limit.
0–4000 RPM
1600 RPM
23
PS Low Gear 2 Max
RPM Limit
Sets the low gear #2
maximum RPM limit.
0–4000 RPM
1800 RPM
23
PS High Gear On
Vehicle Spd
Sets the high gear turn on
speed.
0–250 km/h
80.5 km/h
23
PS High Gear RPM
Limit
Sets the high gear RPM limit.
0–4000 RPM
1650 RPM
Table 5-70
Progressive Shift Programming
All information subject to change without notice.
(Rev. 01/07)
5-127
7SA827 0701
Copyright © 2007 DETROIT DIESEL CORPORATION